Self-winding grass trimmer head

Abstract

The utility model discloses a self winding grass trimmer head, relates to grass trimmer head technical field, including grass trimmer mechanism, cutting mechanism, fixing mechanism and other parts, this device is provided with cutting mechanism, the cutting mechanism includes two mouth-shaped frame that is installed in the casing side face, the both-way screw rod is rotatingly installed between the inner wall of each mouth-shaped frame, the both-way screw rod is fixed in the casing side face, the both-way screw rod is fixed in the casing side face, and the both-way screw rod is fixed in the casing side face. A sliding rod is installed on the inner wall, on one side of the two-way screw, of each mouth-shaped frame, when the grass trimming rope is seriously abraded or broken and damaged, the grass trimming rope can be cut off through the cutting mechanism, a user does not need to additionally carry a cutting tool, and the practicability of the device is improved. The stability of the rotating disc is enhanced, the grass trimming rope is prevented from being released from the roller due to autorotation of the rotating disc, meanwhile, fixation of the rotating disc can be removed only by pulling the pull rod outwards to move the inserting piece out of the inserting groove, and therefore fixation removing operation of the rotating disc is very simple, and operation of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of grass trimmer heads, in particular to a self-winding grass trimmer head. Background Art

[0002] A lawn mower is a common garden tool. Its main principle is to use a motor or engine to drive the mowing head to rotate at high speed, and use the cutting line wound on the spool in the mowing head to cut the grass. When the cutting line extending out of the mowing head housing is broken or worn, a new cutting line must be released from the spool;

[0003] For example, the patent website discloses a grass trimmer head with a convenient winding structure (publication number: CN205408565U). When the cutting line extending out of the grass trimmer head shell is broken or worn, a new cutting line must be released from the spool, but the original broken or worn cutting line needs to be cut off, which requires the use of additional cutting tools, so the user needs to carry additional tools. Therefore, those skilled in the art have proposed a self-winding grass trimmer head. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a self-winding grass trimmer head. The device is provided with a cutting mechanism and does not require workers to carry additional tools to solve the problems in the above background.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a self-winding grass trimmer head, comprising:

[0006] A grass cutting mechanism, wherein the grass cutting mechanism is used for cutting grass;

[0007] The grass trimming mechanism comprises a housing;

[0008] A cutting mechanism, the cutting mechanism is used to cut the internal components of the mowing mechanism;

[0009] The cutting mechanism comprises two mouth-shaped frames mounted on the side of the shell, a bidirectional screw is rotatably mounted between the inner walls of each of the mouth-shaped frames, a slide bar is mounted on the inner wall of each of the mouth-shaped frames on one side of the bidirectional screw, a thread seat is arranged on each thread of each of the bidirectional screws, a mounting plate is mounted on the side of each of the thread seats, a slider sliding on the slide bar is mounted on the end of each of the mounting plates, a blade is mounted on the side of each of the mounting plates, and one end of each of the bidirectional screws extends to the outside of the mouth-shaped frame and is mounted with a knob;

[0010] A fixing mechanism is used to fix the internal components of the grass cutting mechanism.

[0011] As a further technical solution of the utility model, the mowing mechanism also includes an upper cover arranged at the shell port, a winding roller is rotatably installed inside the upper cover, and two groups of mowing ropes are wound around the surface of the winding roller.

[0012] As a further technical solution of the utility model, an outlet is opened on the side of the shell on one side of each upper cover, and each end of the mowing rope extends to the outside of the shell through the corresponding outlet. The upper end of the winding roller extends to the outside of the upper cover and is equipped with a turntable.

[0013] As a further technical solution of the utility model, the fixing mechanism includes a fixing seat installed on the upper surface of the upper cover and located on one side of the turntable, and a cavity is opened inside the fixing seat.

[0014] As a further technical solution of the utility model, the side of the turntable is rectangular and has four slots, a movable seat is slidably arranged inside the cavity, and a plug-in extending into one of the slots is installed on the side of the movable seat.

[0015] As a further technical solution of the utility model, two second springs are arranged in the cavity on the other side of the movable seat, and a pull rod extending to the outside of the fixed seat is installed between the two second springs at the center of the other side surface of the movable seat.

[0016] As a further technical solution of the utility model, two corresponding slots are provided on the upper surface of the fixed seat, an empty slot is provided inside the movable seat, a limiting plate is provided in the empty slot, a first spring is provided in the empty slot below the limiting plate, and a trapezoidal clip extending into one of the slots is installed at the center of the upper surface of the limiting plate.

[0017] Beneficial Effects

[0018] The utility model provides a self-winding grass trimmer head. Compared with the prior art, it has the following beneficial effects:

[0019] 1. Self-winding grass trimmer head. This device is equipped with a cutting mechanism. When the grass trimmer rope is severely worn or broken, the cutting mechanism can be used to cut the grass trimmer rope. The user does not need to carry additional cutting tools, which increases the practicality of the device.

[0020] 2. The self-winding mower head is also equipped with a fixing mechanism to fix the turntable, thereby enhancing the stability of the turntable and preventing the mowing rope from being released from the roller due to its self-rotation. To release the fixation of the turntable, one only needs to pull the pull rod outward to move the plug-in out of the slot, making the operation of releasing the fixation of the turntable very simple and convenient for the staff to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a self-winding grass trimmer head;

[0022] Figure 2 It is a side view of the cutting mechanism of the self-winding mower head;

[0023] Figure 3 It is a schematic diagram of the structure of the mowing mechanism of the self-winding mowing machine head;

[0024] Figure 4 It is a cross-sectional view of the self-winding grass trimmer head;

[0025] Figure 5 for Figure 4 Enlarged view of part A.

[0026] In the figure: 1. Shell; 2. Upper cover; 3. Winding roller; 4. Grass rope; 5. Exit; 6. Turntable; 7. Mouth-shaped frame; 8. Bidirectional screw; 9. Threaded seat; 10. Sliding rod; 11. Sliding block; 12. Mounting plate; 13. Blade; 14. Knob; 15. Fixed seat; 16. Cavity; 17. Moving seat; 18. Empty slot; 19. Limiting plate; 20. First spring; 21. Trapezoidal clamp; 22. Slot; 23. Plug-in; 24. Second spring; 25. Pull rod; 26. Slot. DETAILED DESCRIPTION

[0027] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0028] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] like Figure 1-5 As shown, the self-winding grass trimmer head of the present disclosure may include: a grass trimming mechanism, a cutting structure, a fixing mechanism and other components;

[0031] like Figure 1-5 As shown, the mowing mechanism includes a housing 1, an upper cover 2, a winding roller 3, a mowing rope 4, an outlet 5, and a rotating disc 6;

[0032] The upper cover 2 is arranged at the upper end of the shell 1, the winding roller 3 is rotatably installed at the center of the inner bottom surface of the shell 1, two grass cutting ropes 4 are wound up and down on the surface of the winding roller 3, two outlets 5 are opened on the side of the shell 1, and the end of each grass cutting rope 4 passes through the corresponding outlet 5 and extends to the outside of the shell 1, and the rotating disk 6 is installed at the end of the winding roller 3 extending to the outside of the upper cover 2;

[0033] When in use, the mower uses a motor to drive the mowing mechanism of the device to rotate, and uses the mowing rope 4 wound on the winding roller 3 of the mowing mechanism to cut the grass. When the mowing rope 4 extending out of the housing 1 is broken or worn, a new mowing rope 4 must be released from the winding roller 3, and the rotating turntable 6 drives the winding roller 3 to rotate so that the mowing rope 4 wound thereon can be unfolded and extended from the outlet 5.

[0034] like Figure 1-5 As shown, the cutting mechanism includes a mouth-shaped frame 7, a bidirectional screw 8, a threaded seat 9, a slide bar 10, a slider 11, a mounting plate 12, a blade 13, and a knob 14;

[0035] Two mouth-shaped frames 7 are respectively arranged at the ports of the two outlets 5, each bidirectional screw 8 is rotatably installed between the two side walls of the corresponding mouth-shaped frame 7, each slide bar 10 is installed on the inner wall of the corresponding mouth-shaped frame 7 and is located on one side of the bidirectional screw 8, each group of two threaded seats 9 are respectively arranged on two threads of the corresponding bidirectional screw 8, each mounting plate 12 is installed on the side of the corresponding threaded seat 9, each slider 11 is installed at the end of the corresponding mounting plate 12 and slides on the slide bar 10, each blade 13 is installed on the side of the mounting plate 12, and each knob 14 is installed at the end of the corresponding bidirectional screw 8 extending to the outside of the mouth-shaped frame 7;

[0036] At the same time, before releasing a new mowing rope 4, it is necessary to use the cutting mechanism to cut off the mowing rope 4 that is originally exposed to the outside of the shell 1 and is broken or severely worn, that is, the knob 14 can be rotated to drive the bidirectional screw 8 to rotate, and the rotating bidirectional screw 8 drives the two threaded seats 9 to approach each other, and the threaded seats 9 approaching each other drive the two sliders 11 to slide on the slide rod 10 through the two mounting plates 12, and at the same time drive the two blades 13 to approach each other until the mowing rope 4 between the two is cut off, and then reverse the knob 14 to make the two blades 13 move away from each other until the position is restored, and then repeat the above operation to cut off the worn part of the other mowing rope 4;

[0037] like Figure 1-5 As shown, the fixing mechanism includes a fixing seat 15, a cavity 16, a movable seat 17, an empty slot 18, a limiting plate 19, a first spring 20, a trapezoidal clamp 21, a clamping slot 22, a plug-in 23, a second spring 24, a pull rod 25, and a slot 26;

[0038] The fixed seat 15 is installed on the upper surface of the upper cover 2 and is located on one side of the turntable 6. The cavity 16 is opened inside the fixed seat 15. The movable seat 17 is slidably set inside the cavity 16. Four slots 26 are rectangularly opened on the side wall of the turntable 6. The plug-in 23 is installed on the side of the movable seat 17 and extends into one slot 26. The pull rod 25 is installed on the other side of the movable seat 17 and extends to the outside of the fixed seat 15. Two second springs 24 are arranged in the cavity 16 and are located on one side of the movable seat 17. The empty slot 18 is opened inside the movable seat 17. Two card slots 22 are opened on the upper surface of the fixed seat 15 and are connected with the cavity 16. The limiting plate 19 is arranged in the empty slot 18. The first spring 20 is arranged in the empty slot 18 and is below the limiting plate 19. The trapezoidal clamp 21 is installed at the center of the upper surface of the limiting plate 19 and extends into one card slot 22.

[0039] The rotating disk 6 is fixed by the fixing mechanism. When the rotating disk 6 needs to be rotated, the outer pulling rod 25 drives the moving seat 17 to move. The moving moving seat 17 compresses the second spring 24 and drives the trapezoidal clamp 21 and the plug-in 23 to move. The moving trapezoidal clamp 21 is squeezed by the edge of the card slot 22 to make the trapezoidal clamp 21 move downward. The downwardly moved trapezoidal clamp 21 compresses the first spring 20 through the limit plate 19, and the moving plug-in 23 moves out of the slot 26. When the moving trapezoidal clamp 21 moves to the bottom of another card slot 22, the first spring 20 rebounds and drives the trapezoidal clamp 21 to rise and insert into the card slot 22, fixing the moving seat 17, thereby releasing the fixation of the rotating disk 6, and then the rotating disk 6 can be rotated. After the rotation is completed, one of the slots 26 is aligned with the plug-in 23, and the trapezoidal clamp 21 is pressed down to make it disengage from the inserted card slot 22. After that, the second spring 24 rebounds and drives the moving seat 17 to restore its position, thereby driving the plug-in 23 to be inserted into the aligned slot 26, and the rotating disk 6 is fixed again, and the operation is completed.

[0040] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. Self-winding grass trimmer head, characterized in that: include: beat A grass cutting mechanism, wherein the grass cutting mechanism is used for cutting grass; The grass trimming mechanism comprises a housing (1); A cutting mechanism, the cutting mechanism is used to cut the internal components of the mowing mechanism; The cutting mechanism comprises two mouth-shaped frames (7) mounted on the side of the housing (1), a bidirectional screw (8) being rotatably mounted between the inner walls of each of the mouth-shaped frames (7), a slide bar (10) being mounted on the inner wall of each of the mouth-shaped frames (7) on one side of the bidirectional screw (8), a threaded seat (9) being provided on each thread of each of the bidirectional screws (8), a mounting plate (12) being mounted on the side of each of the threaded seats (9), a slider (11) being mounted at the end of each of the mounting plates (12) and sliding on the slide bar (10), a blade (13) being mounted on the side of each of the mounting plates (12), and one end of each of the bidirectional screws (8) extending to the outside of the mouth-shaped frame (7) and being mounted with a knob (14); A fixing mechanism is used to fix the internal components of the grass cutting mechanism.

2. The self-winding grass trimmer head according to claim 1, characterized in that: The mowing mechanism further comprises an upper cover (2) arranged at the end of the housing (1), a winding roller (3) being rotatably mounted inside the upper cover (2), and two groups of mowing ropes (4) being wound around the surface of the winding roller (3).

3. The self-winding grass trimmer head according to claim 2, characterized in that: The side surface of the shell (1) is provided with an outlet (5) on one side of each upper cover (2); the end of each mowing rope (4) passes through the corresponding outlet (5) and extends to the outside of the shell (1); the upper end of the winding roller (3) extends to the outside of the upper cover (2) and is provided with a rotating disk (6).

4. The self-winding grass trimmer head according to claim 3, characterized in that: The fixing mechanism comprises a fixing seat (15) mounted on the upper surface of the upper cover (2) and located on one side of the turntable (6), and a cavity (16) is provided inside the fixing seat (15).

5. The self-winding grass trimmer head according to claim 4, characterized in that: The side surface of the rotating disk (6) is rectangular and has four slots (26). A movable seat (17) is slidably arranged inside the cavity (16). A plug-in unit (23) extending into one of the slots (26) is installed on the side surface of the movable seat (17).

6. The self-winding grass trimmer head according to claim 5, characterized in that: Two second springs (24) are arranged in the cavity (16) on the other side of the movable seat (17), and a pull rod (25) extending to the outside of the fixed seat (15) is installed between the two second springs (24) at the center of the other side surface of the movable seat (17).

7. The self-winding grass trimmer head according to claim 6, characterized in that: The upper surface of the fixed seat (15) is provided with two corresponding slots (22); the movable seat (17) is provided with an empty slot (18) inside; a limit plate (19) is provided in the empty slot (18); a first spring (20) is provided in the empty slot (18) below the limit plate (19); and a trapezoidal clamp (21) extending into one of the slots (22) is installed at the center of the upper surface of the limit plate (19).

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