Automatic pay-off type grass trimmer

Abstract

The utility model discloses an automatic pay -off type grass beater. The utility model discloses, including support rod: the outer surface of support rod is provided with handrail and auxiliary handle, and one end of support rod is provided with power source interface, and the other end of support rod is provided with grass beating structure, and the grass beating structure still includes the fender, and the top of fender is provided with motor, and the output of motor is provided with rotator. The utility model discloses, through the cooperation between rotator, connecting piece, coil spring and grass beating rope, under the drive of motor, grass beating rope can be unfolded from rotator, and the user can adjust the rotating speed of motor to adjust the unfolding length of grass beating rope, and when the user does not use grass beater, the coil spring can drive connecting piece to rotate, makes grass beating rope to retract in rotator inside, and winds around the surface of connecting piece, therefore need not the user manual disassembly grass beating rope or the length of grass beating rope is adjusted, and the operation is convenient and quick.

Description

Technical Field

[0001] This utility model relates to the field of garden tools, specifically an automatic line-laying type grass trimmer. Background Technology

[0002] A lawnmower is a handheld tool used to cut weeds in lawns, gardens, pastures, and other areas. Based on the power source, it can be divided into hydraulic and electric types; based on the power head structure, it can be divided into front-mounted and rear-mounted types, with an electric motor as the power source.

[0003] When not in use, the trimming rope on existing lawnmowers needs to be wound onto a spool for storage. If the user wants to use the lawnmower, the trimming rope needs to be manually removed from the spool. Furthermore, if the user needs to adjust the length of the trimming rope, the user needs to manually cut the rope, which is inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide an automatic line-feeding type grass trimmer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic line-feeding type grass trimmer, comprising a support rod: the outer surface of the support rod is provided with a handrail and an auxiliary handle, one end of the support rod is provided with a power interface, the other end of the support rod is provided with a grass trimming structure, the grass trimming structure further includes a protective plate, the top of the protective plate is provided with a motor, the output end of the motor is provided with a rotating component, a connecting component is movably provided inside the rotating component, a helical spring is provided inside the connecting component, the top and bottom of the outer surface of the connecting component are respectively provided with a first grass trimming rope and a second grass trimming rope, and the top of both the rotating component and the connecting component is provided with a top plate.

[0006] By adopting the above technical solution, when using the lawn mower, the user controls the speed of the motor output end by pressing the control switch on the handle. When the motor output end rotates, it drives the rotating part to rotate, which in turn drives the connecting part to rotate. The first and second hay ropes rotate accordingly. When the first and second hay ropes rotate, the centrifugal force drives the first and second hay ropes to rotate further, and the first and second hay ropes can unfold accordingly. The faster the speed of the motor output end, the longer the first and second hay ropes unfold. At the same time, when the lawn mower is not in use, the connecting part can rotate in the opposite direction by the pull of the helical spring, and the first and second hay ropes can be wound up on the connecting part to achieve the function of hay rope storage.

[0007] Preferably, a control switch is provided on the handrail, and the power interface, the control switch and the motor are electrically connected.

[0008] By adopting the above technical solution, the control switch realizes the speed regulation of the motor through PWM speed regulation, so that the unfolded length of the first and second straw ropes can be changed according to the speed of the motor output end.

[0009] Preferably, the handrail and auxiliary handle are sleeved with the support rod, and the other end of the support rod is connected to the protective plate.

[0010] By adopting the above technical solution, the handrail and auxiliary handle can be stably and firmly installed on the support rod. The support rod and the protective plate can be adjusted by an angle adjustment structure, which can change the angle between the support rod and the weeding structure, so that the weeding structure can remove weeds in different positions.

[0011] Preferably, a connecting rod is provided at the middle position of the bottom of the rotating component, and the output end of the motor passes through the protective plate and is connected to the connecting rod.

[0012] By adopting the above technical solution, the motor can drive the rotating part to rotate through the connecting rod, so that the weeding rope between the rotating part and the connecting part can be unfolded, and the weeding rope can remove weeds.

[0013] Preferably, a circular hole is provided at the middle position of the bottom of the connector, and the size of the connecting rod on the rotating part is adapted to the size of the circular hole on the connector. The connector is rotatably connected to the rotating part through the connecting rod and the circular hole.

[0014] By adopting the above technical solution, the connector can be sleeved on the connecting rod on the rotating part through the round hole, which facilitates the connector to rotate inside the rotating part.

[0015] Preferably, the two ends of the helical spring are connected to the outer wall of the connecting rod and the inner wall of the connecting piece, respectively.

[0016] By adopting the above technical solution, when the user is not using the grass trimmer, the spiral spring will rebound because the rotating part is not rotating, causing the connecting part to rotate in the opposite direction, so that the first and second grass trimming ropes can be wrapped around the surface of the connecting part, and the first and second grass trimming ropes can be stored inside the rotating part.

[0017] Preferably, a partition is provided at the middle position of the outer surface of the connector, and there is a storage space between the rotating part and the connector. The storage space is divided into two winding spaces by the partition, and the first straw rope and the second straw rope are respectively disposed in the two winding spaces.

[0018] By adopting the above technical solution, the partition on the connector plays a dividing role and can also prevent the first and second straw ropes from getting tangled when they are rolled up.

[0019] Preferably, a connecting hole is provided at the middle position on both sides of the rotating component. The size of the connecting hole on the rotating component is adapted to the size of the first and second hay-cutting ropes. The first and second hay-cutting ropes are movably connected to the rotating component through the connecting hole. Both the first and second hay-cutting ropes are composed of a connecting rope and a gravity ball.

[0020] By adopting the above technical solution, the first and second straw ropes are able to unfold from the rotating part through the gravity ball.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows: This automatic line-feeding grass trimmer, through the cooperation between the rotating part, the connecting part, the helical spring and the grass trimming rope, allows the grass trimming rope to unfold from the rotating part under the drive of the motor. The user can adjust the speed of the motor to adjust the unfolded length of the grass trimming rope. Moreover, when the user is not using the grass trimmer, the helical spring can drive the connecting part to rotate, so that the grass trimming rope can retract into the rotating part and be wound on the surface of the connecting part. Therefore, the user does not need to manually disassemble the grass trimming rope or adjust the length of the grass trimming rope, making the operation convenient and quick. Attached Figure Description

[0022] Figure 1 This is a front view of the structure of this utility model;

[0023] Figure 2 This is a front sectional view of the grass-cutting structure of this utility model;

[0024] Figure 3 This is a top sectional view of the grass-cutting structure of this utility model.

[0025] In the diagram: 1. Support rod; 2. Handrail; 3. Auxiliary handle; 4. Power interface; 5. Grass trimming structure; 50. Protective plate; 51. Motor; 52. Rotating component; 53. Connecting component; 54. Helical spring; 55. First grass trimming rope; 56. Second grass trimming rope; 57. Top plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-3This utility model provides an embodiment of an automatic line-feeding type grass trimmer, including a support rod 1. The outer surface of the support rod 1 is provided with a handle 2 and an auxiliary handle 3. One end of the support rod 1 is provided with a power interface 4, and the other end of the support rod 1 is provided with a grass trimming structure 5. The grass trimming structure 5 also includes a protective plate 50. A motor 51 is provided on the top of the protective plate 50. A rotating component 52 is provided at the output end of the motor 51. A connecting component 53 is movably disposed inside the rotating component 52. A helical spring 54 is disposed inside the connecting component 53. A first grass trimming rope 55 and a second grass trimming rope 56 are respectively provided on the top and bottom of the outer surface of the connecting component 53. A top plate 57 is provided on the top of both the rotating component 52 and the connecting component 53. When using the grass trimmer, the user controls the motor by pressing the control switch on the handle 2. The rotational speed of motor 51 at its output end drives the rotating part 52 to rotate, which in turn drives the connecting part 53 to rotate. The first and second haystack ropes 55 and 56 rotate accordingly. When the first and second haystack ropes 55 and 56 rotate, the centrifugal force drives the connecting part 53 to rotate further, and the first and second haystack ropes 55 and 56 can unfold accordingly. The faster the rotational speed of motor 51 at its output end, the longer the first and second haystack ropes 55 and 56 unfold. At the same time, when the haystack is not in use, the connecting part 53 can rotate in the opposite direction by the pull of the helical spring 54, and the first and second haystack ropes 55 and 56 can be wound up on the connecting part 53 to achieve the function of haystack rope storage.

[0028] In this embodiment, a control switch is provided on the handrail 2. The power interface 4, the control switch and the motor 51 are electrically connected. The control switch realizes the speed adjustment of the motor 51 through PWM speed regulation, so that the unfolded length of the first straw rope 55 and the second straw rope 56 can be changed according to the speed of the output end of the motor 51.

[0029] In this embodiment, the handrail 2 and auxiliary handle 3 are connected to the support rod 1. The other end of the support rod 1 is connected to the protective plate 50. The handrail 2 and auxiliary handle 3 can be stably and firmly installed on the support rod 1. The support rod 1 and the protective plate 50 can be adjusted by an angle adjustment structure. The angle adjustment structure can change the angle between the support rod 1 and the weeding structure 5, so that the weeding structure 5 can remove weeds in different positions.

[0030] In this embodiment, a connecting rod is provided at the middle position of the bottom of the rotating part 52. The output end of the motor 51 passes through the protective plate 50 and is connected to the connecting rod. The motor 51 can drive the rotating part 52 to rotate through the connecting rod, so that the weeding rope between the rotating part 52 and the connecting part 53 can be unfolded, and the weeding rope can remove weeds.

[0031] In this embodiment, a round hole is provided at the middle position of the bottom of the connector 53. The size of the connecting rod on the rotating part 52 is adapted to the size of the round hole on the connector 53. The connector 53 is rotatably connected to the rotating part 52 through the connecting rod and the round hole. The connector 53 can be sleeved on the connecting rod on the rotating part 52 through the round hole, so that the connector 53 can rotate inside the rotating part 52.

[0032] In this embodiment, the two ends of the helical spring 54 are connected to the outer wall of the connecting rod and the inner wall of the connecting member 53, respectively. When the user is not using the grass trimmer, since the rotating member 52 is not rotating, the helical spring 54 will rebound, causing the connecting member 53 to rotate in the opposite direction, so that the first grass trimming rope 55 and the second grass trimming rope 56 can be wound around the surface of the connecting member 53, and the first grass trimming rope 55 and the second grass trimming rope 56 can be stored inside the rotating member 52.

[0033] In this embodiment, a partition is provided in the middle of the outer surface of the connector 53. There is a storage space between the rotating part 52 and the connector 53, and the storage space is divided into two winding spaces by the partition. The first straw rope 55 and the second straw rope 56 are respectively set in the two winding spaces. The partition on the connector 53 plays a dividing role and can also prevent the first straw rope 55 and the second straw rope 56 from getting tangled when winding.

[0034] In this embodiment, connecting holes are provided at the middle positions on both sides of the rotating member 52. The size of the connecting holes on the rotating member 52 is adapted to the size of the first hay-trimming rope 55 and the second hay-trimming rope 56. The first hay-trimming rope 55 and the second hay-trimming rope 56 are movably connected to the rotating member 52 through the connecting holes. The first hay-trimming rope 55 and the second hay-trimming rope 56 are both composed of connecting ropes and gravity balls. The first hay-trimming rope 55 and the second hay-trimming rope 56 can be unfolded from inside the rotating member 52 through the gravity balls.

[0035] Working principle: When using the lawn mower, the user controls the speed of the motor 51 output end by pressing the control switch on the handle 2. When the motor 51 output end rotates, it drives the rotating part 52 to rotate, which in turn drives the connecting part 53 to rotate. The first and second hay trimming ropes 55 and 56 rotate accordingly. When the first and second hay trimming ropes 55 and 56 rotate, the centrifugal force drives the connecting part 53 to rotate further, and the first and second hay trimming ropes 55 and 56 can unfold accordingly. The faster the speed of the motor 51 output end, the longer the first and second hay trimming ropes 55 and 56 unfold. At the same time, when the lawn mower is not in use, the connecting part 53 can rotate in the opposite direction by the pull of the helical spring 54, and the first and second hay trimming ropes 55 and 56 can be wound up on the connecting part 53 to achieve the function of hay trimming rope storage.

[0036] For those skilled in the art, this invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or scope of this invention. Therefore, the embodiments of this invention are exemplary and not restrictive. The scope of this invention is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic line-feeding type grass trimmer, comprising a support rod (1), characterized in that: The outer surface of the support rod (1) is provided with a handrail (2) and an auxiliary handle (3). One end of the support rod (1) is provided with a power interface (4). The other end of the support rod (1) is provided with a grass trimming structure (5). The grass trimming structure (5) also includes a protective plate (50). The top of the protective plate (50) is provided with a motor (51). The output end of the motor (51) is provided with a rotating part (52). The rotating part (52) is movably provided with a connecting part (53). The connecting part (53) is provided with a helical spring (54). The top and bottom of the outer surface of the connecting part (53) are respectively provided with a first grass trimming rope (55) and a second grass trimming rope (56). The top of both the rotating part (52) and the connecting part (53) is provided with a top plate (57).

2. The automatic line-feeding type grass trimmer according to claim 1, characterized in that: A control switch is provided on the handrail (2), and the power interface (4), the control switch and the motor (51) are electrically connected.

3. The automatic line-feeding type grass trimmer according to claim 1, characterized in that: The handrail (2) and auxiliary handle (3) are connected to the support rod (1), and the other end of the support rod (1) is connected to the protective plate (50).

4. The automatic line-feeding type grass trimmer according to claim 1, characterized in that: A connecting rod is provided at the middle position of the bottom of the rotating part (52), and the output end of the motor (51) is connected to the connecting rod through the protective plate (50).

5. An automatic line-feeding type grass trimmer according to claim 4, characterized in that: A circular hole is provided at the middle position of the bottom of the connector (53). The size of the connecting rod on the rotating part (52) is adapted to the size of the circular hole on the connector (53). The connector (53) is rotatably connected to the rotating part (52) through the connecting rod and the circular hole.

6. An automatic line-feeding type grass trimmer according to claim 4, characterized in that: The two ends of the helical spring (54) are connected to the outer wall of the connecting rod and the inner wall of the connecting piece (53), respectively.

7. An automatic line-feeding type grass trimmer according to claim 1, characterized in that: A partition is provided in the middle of the outer surface of the connector (53). There is a storage space between the rotating part (52) and the connector (53), and the storage space is divided into two winding spaces by the partition. The first straw rope (55) and the second straw rope (56) are respectively set in the two winding spaces.

8. An automatic line-feeding type grass trimmer according to claim 1, characterized in that: The rotating part (52) has connecting holes at the middle positions on both sides. The size of the connecting holes on the rotating part (52) is adapted to the size of the first grass trimming rope (55) and the second grass trimming rope (56). The first grass trimming rope (55) and the second grass trimming rope (56) are movably connected to the rotating part (52) through the connecting holes. The first grass trimming rope (55) and the second grass trimming rope (56) are both composed of connecting ropes and gravity balls.

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