A lawn edging shears with multi-angle rotating blade

Abstract

The utility model relates to the technical field of gardens tools, disclose a kind of lawn trimming shears with multi-angle rotating blade head, the lawn trimming shears include fixed handle, movable handle, rotating block, movable blade head and fixed blade head.Adjusting assembly includes the first connecting block being set on the top of fixed handle and the second connecting block being fixed to fixed handle;Second limiting block is slidably arranged in the first connecting block, and a limiting slot for clamping is formed in the second connecting block;By pressing the second button to drive the second limiting block to compress the first spring to unlock the angle, and after loosening, it is reset and locked.In addition, the limiting assembly for quickly disassembling and replacing the blade head by driving the spring sheet to deform is also provided.The utility model solves the defects of the prior art, such as fixed angle of blade head, inconvenient replacement, realizes the convenient adjustment and quick disassembly and replacement of the angle of blade head, is flexible in operation, and has strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of garden tool technology, and in particular to a lawn trimmer with a blade that can rotate at multiple angles. Background Technology

[0002] Lawn trimmers are a common hand tool used in garden maintenance. They are mainly used to trim the edges of lawns, around flower beds, corners, and other areas that are difficult for large lawnmowers to reach, in order to maintain the overall beauty and cleanliness of the lawn.

[0003] In conventional lawn trimmers, the angle between the blade and the handle is usually fixed. When users need to trim lawn edges in different directions, such as switching from trimming a horizontal edge parallel to the ground to trimming a vertical edge perpendicular to a wall, they must adjust the orientation of the entire tool by significantly twisting their wrist or changing their body posture so that the blade can adapt to the trimming surface.

[0004] This operating method is not only extremely inconvenient, but also significantly reduces work efficiency. Maintaining an unnatural grip posture for extended periods can easily lead to fatigue and even strain in the user's hand and arm muscles. More importantly, it is difficult to maintain a stable blade angle during frequent changes in posture, thus affecting the smoothness and aesthetics of the pruning results and failing to meet the requirements of refined garden maintenance. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a lawn trimmer with a multi-angle rotating blade, aiming to improve the problems of fixed blade angle, difficulty in adapting to different directions of trimming work, inconvenience and low efficiency of lawn trimmers. This utility model aims to provide a lawn trimmer with an improved structure that can effectively solve the above problems by having a multi-angle rotating blade.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a lawn trimmer with a multi-angle rotatable blade, comprising a movable blade, a fixed blade and a fixed handle, a movable handle rotatably connected to the fixed handle via a hinge seat, a rotating block driven by the movable handle, and a rotating disk disposed above the fixed handle; the lawn trimmer also includes an adjustment component.

[0007] The adjustment component is used to realize the rotatable connection between the rotating disk and the rotating block. The adjustment component includes a first connecting block, a second connecting block, a second button, a first spring, and a second limiting block.

[0008] Furthermore, the first connecting block is disposed above the fixed handle, the second connecting block is fixedly connected to the fixed handle, and the second connecting block has a limiting groove for the second limiting block to engage; the second limiting block is slidably disposed within the first connecting block and is driven by the second button; the two ends of the first spring respectively abut against the second button and the first connecting block.

[0009] Preferably, the lawn trimmer further includes a second spring, which is disposed between the movable handle and the fixed handle, and is used to generate a rebound force to drive the rotating block when the movable handle is released.

[0010] Preferably, the lawn trimmer further includes a connecting rod, one end of which is disposed on the movable blade head, and the other end is eccentrically connected to the rotating disk.

[0011] Preferably, the second buttons are a pair arranged symmetrically along the radial direction of the first connecting block, and the pair of second buttons can synchronously drive the second limiting block to slide.

[0012] Preferably, the lawn trimmer further includes a limiting component for disassembling the movable blade and the fixed blade.

[0013] Preferably, the lawn trimmer further includes a first fixing block and a second fixing block; the movable blade and the fixed blade are disposed on the first fixing block; the second fixing block is fixedly connected to the first connecting block; the first fixing block is detachably connected to the second fixing block through the limiting component.

[0014] Preferably, the limiting component includes a first button, a first limiting block, a spring sheet, and a fixing rod; the spring sheet is disposed within the first fixing block, and the first limiting block is connected to one end of the spring sheet.

[0015] Preferably, the first button causes the spring sheet to elastically deform via the fixing rod, thereby disengaging the first limiting block from the second fixing block.

[0016] This utility model has the following beneficial effects: In this invention, an adjustment assembly consisting of a button, a spring, and a limiting block is provided. Pressing the button causes the limiting block to disengage from the limiting groove to unlock the angle. After releasing the button, the limiting block automatically resets and locks under the action of the spring. This solves the problems of fixed angle of existing lawn trimming shears, difficulty in adapting to various trimming environments, and inconvenient operation. It achieves the effect of conveniently and quickly adjusting the rotation angle of the blade head, greatly improving the applicability and work efficiency of the tool.

[0017] In this invention, a limiting component consisting of a button, a spring sheet, and a limiting block is set up. Pressing the button drives the spring sheet to undergo elastic deformation, thereby unlocking and separating the blade head. This solves the problems of cumbersome disassembly and replacement process, the need for tools, and inconvenient maintenance of existing lawn trimmer shear heads. It achieves quick blade head replacement without tools, greatly simplifies the user's cleaning and maintenance process, and extends the overall service life of the tool. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a lawn trimmer with a multi-angle rotatable blade, as proposed in this utility model. Figure 2 This is a schematic diagram of the first fixing block of a lawn trimmer with a multi-angle rotatable blade, as proposed in this utility model. Figure 3 This is a schematic diagram of the second limiting block of a lawn trimmer with a multi-angle rotatable blade, as proposed in this utility model. Figure 4 This is a schematic diagram of the first limiting block of a lawn trimmer with a multi-angle rotatable blade, as proposed in this utility model.

[0019] Legend: 1. Movable cutter head; 2. First fixed block; 3. Limiting component; 301. First button; 302. First limiting block; 303. Spring plate; 304. Fixed rod; 4. Connecting rod; 5. Second fixed block; 6. First connecting block; 7. Adjusting component; 701. Second button; 702. First spring; 703. Second limiting block; 8. Second connecting block; 9. Rotating disk; 10. Rotating block; 11. Movable handle; 12. Fixed handle; 13. Second spring; 14. Hinge seat; 15. Fixed cutter head. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please refer to Figures 1 to 4 This utility model provides a lawn trimmer with a multi-angle rotatable blade, which aims to solve the problems of inconvenient operation and complex blade replacement structure caused by the fixed blade angle of existing lawn trimmers.

[0022] like Figure 1As shown, this lawn trimmer with a multi-angle rotatable blade includes an operating part and a cutting part. The operating part includes a fixed handle 12 and a movable handle 11. The movable handle 11 is rotatably connected to the fixed handle 12 via a hinge seat 14. A second spring 13 is provided between the fixed handle 12 and the movable handle 11. The cutting part includes a rotating block 10, a rotating disk 9, a movable blade 1, and a fixed blade 15. The movable handle 11 drives the rotating block 10 to move. When the movable handle 11 is released, the second spring 13 generates a rebound force to drive the rotating block 10. The movable blade 1 and the fixed blade 15 are provided on the rotating disk 9. The cutting part also includes a connecting rod 4. One end of the connecting rod 4 is provided on the movable blade 1, and the other end of the connecting rod 4 is eccentrically connected to the rotating disk 9. The rotating block 10 drives the rotating disk 9, and then the connecting rod 4 drives the movable blade 1 to cooperate with the fixed blade 15 to complete the cutting.

[0023] Reference Figures 1-3 The rotating disk 9 is rotatably connected to the rotating block 10 via the adjusting component 7, realizing the function of adjusting the blade angle. The adjusting component 7 includes a first connecting block 6, a second connecting block 8, a second button 701, a first spring 702, and a second limiting block 703. To establish a stable connection frame, the first connecting block 6 is positioned above the fixed handle 12, while the second connecting block 8 is fixedly connected to the fixed handle 12. Thus, the relative rotation between the rotating disk 9 and the rotating block 10 is achieved through the relative rotation of the first connecting block 6 and the second connecting block 8. To achieve angle locking and unlocking, the second connecting block 8 has a limiting groove for the second limiting block 703 to engage. The second limiting block 703 is slidably positioned within the first connecting block 6 and is controlled by the second button 702. 1. Drive: The two ends of the first spring 702 abut against the second button 701 and the first connecting block 6 respectively. When the second button 701 is released, it pushes the second limiting block 703 into the limiting groove of the second connecting block 8 through its own elastic force, at which time the angle of the rotating disk 9 is locked. When the angle needs to be adjusted, the second button 701 is pressed. The second button 701 drives the second limiting block 703 to slide in the first connecting block 6 and compress the first spring 702, so that the second limiting block 703 is disengaged from the limiting groove and the lock is released. The user can then freely rotate the blade. For ease of operation, the second buttons 701 are a pair symmetrically arranged radially along the first connecting block 6. The pair of second buttons 701 can synchronously drive the second limiting block 703 to slide, ensuring a smooth and reliable unlocking process.

[0024] Reference Figure 1 and Figure 4The lawn trimmer also includes a first fixing block 2 and a second fixing block 5. The movable blade head 1 and the fixed blade head 15 are integrally set on the first fixing block 2 to form a replaceable blade head module. The second fixing block 5 is fixedly connected to the first connecting block 6 as the mounting base of the blade head module. The first fixing block 2 is detachably connected to the second fixing block 5 through a limiting component 3. The limiting component 3 includes a first button 301, a first limiting block 302, a spring plate 303, and a fixing rod 304.

[0025] Specifically, the spring sheet 303 is disposed inside the first fixing block 2, and the first limiting block 302 is connected to the end of the spring sheet 303 near the second fixing block 5. In the natural state, the elastic force of the spring sheet 303 causes the first limiting block 302 to extend and engage in the preset limiting groove on the second fixing block 5, thereby firmly locking the first fixing block 2 onto the second fixing block 5.

[0026] When the cutter head module needs to be disassembled, press the first button 301 located on the outside. The first button 301 drives the fixing rod 304 to apply force to the spring plate 303, causing the spring plate 303 to undergo elastic deformation. This deformation causes the first limiting block 302 connected to the end of the spring plate 303 to retract inward, eventually disengaging from the second fixing block 5. At this time, the entire first fixing block 2, together with the movable cutter head 1 and the fixed cutter head 15, can be separated from the second fixing block 5. This quick-release structure, which uses the deformation of the spring plate 303 to achieve locking and unlocking, ensures the reliability of the cutter head module installation and the speed of disassembly. The entire process does not require any tools.

[0027] In a preferred embodiment, the lawn trimmer also includes a second spring 13, which is disposed between the movable handle 11 and the fixed handle 12. After the movable handle 11 is squeezed, the elastic force of the second spring 13 causes the movable handle 11 to automatically open and return to its original position.

[0028] As another preferred embodiment, in order to accurately transmit the motion of the rotating disk 9 to the movable blade 1, the lawn trimmer also includes a connecting rod 4. One end of the connecting rod 4 is disposed in the movable blade 1, and the other end of the connecting rod 4 is eccentrically connected to the inside of the rotating disk 9, so as to convert the motion of the rotating disk 9 into the opening and closing motion of the movable blade 1.

[0029] Reference Figures 1-3 The second button 701 is a pair arranged symmetrically along the radial direction of the first connecting block 6. The pair of second buttons 701 can synchronously drive the second limiting block 703 to slide along the first connecting block 6, avoiding jamming or deflection that may be caused by single-point pressing.

[0030] The first fixing block 2 fixes the cutter head 15, and the second fixing block 5 serves as a mounting base and is fixedly connected to the first connecting block 6; the first fixing block 2 is detachably connected to the second fixing block 5 via the limiting component 3; Specifically, the limiting component 3 includes a first button 301, a first limiting block 302, a spring sheet 303, and a fixing rod 304; the spring sheet 303 is disposed inside the first fixing block 2, and the first limiting block 302 is connected to one end of the spring sheet 303; the first button 301 causes the spring sheet 303 to undergo elastic deformation through the fixing rod 304, thereby causing the first limiting block 302 to disengage from the second fixing block 5.

[0031] Working principle: When performing regular cutting, the user holds the movable handle 11 and the fixed handle 12 and applies force. The movable handle 11 rotates around the hinge seat 14 and squeezes the second spring 13. When the movable handle 11 is released, the second spring 13 generates a rebound force. This rebound force drives the rotating block 10 to move, which in turn causes the rotating disk 9 and the internally eccentrically connected connecting rod 4 to move together, ultimately driving the movable cutter head 1 to cooperate with the fixed cutter head 15 to complete the cutting action. When the blade angle needs to be adjusted to adapt to different trimming environments, press the second button 701 set on the first connecting block 6. The second button 701 drives the second limiting block 703 to slide within the first connecting block 6, while compressing the first spring 702, causing one end of the second limiting block 703 to disengage from the limiting groove of the second connecting block 8. At this time, the lock of the rotating disk 9 relative to the rotating block 10 is released. The user can manually rotate the rotating disk 9 with the blade to adjust the angle. After adjusting to the appropriate position, release the second button 701. The rebound force of the first spring 702 pushes the second limiting block 703 to re-engage in the corresponding limiting groove on the second connecting block 8, thereby locking the blade at the new working angle. When it is necessary to disassemble and replace the cutter head, press the first button 301. The first button 301 acts on the spring plate 303 set inside the first fixed block 2 through the fixed rod 304. Relying on the elasticity of the spring plate 303 itself, the spring plate 303 deforms. This deformation causes the first limiting block 302 connected to the end of the spring plate 303 to retract inward and disengage from the second fixed block 5. At this time, the first fixed block 2 that carries the movable cutter head 1 and the fixed cutter head 15 can be separated from the second fixed block 5 fixed to the rotating disk 9, realizing the quick disassembly and replacement of the cutter head.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lawn trimmer with a multi-angle rotatable blade, comprising a movable blade (1), a fixed blade (15) and a fixed handle (12). The movable handle (11) is rotatably connected to the fixed handle (12) via the hinge seat (14). The rotating block (10) is driven by the movable handle (11); Rotating disk (9), disposed above the fixed handle (12), characterized in that: The lawn trimmer also includes an adjustment component (7), and the rotating disk (9) is rotatably connected to the rotating block (10) through the adjustment component (7). The adjustment component (7) includes a first connecting block (6), a second connecting block (8), a second button (701), a first spring (702), and a second limiting block (703); The first connecting block (6) is disposed above the fixed handle (12), and the second connecting block (8) is fixedly connected to the fixed handle (12). The second connecting block (8) has a limiting groove for the second limiting block (703) to engage; The second limiting block (703) is slidably disposed within the first connecting block (6) and is driven by the second button (701); The two ends of the first spring (702) abut against the second button (701) and the first connecting block (6), respectively.

2. The lawn trimmer with a multi-angle rotatable blade as described in claim 1, characterized in that, It also includes a second spring (13), which is disposed between the movable handle (11) and the fixed handle (12) to generate a rebound force when the movable handle (11) is released to drive the rotating block (10).

3. A lawn trimmer with a multi-angle rotatable blade as described in claim 1, characterized in that, It also includes a connecting rod (4), one end of which is disposed in the movable cutter head (1), and the other end is eccentrically connected to the rotating disk (9).

4. A lawn trimmer with a multi-angle rotatable blade as described in claim 1, characterized in that, The second button (701) is a pair arranged radially symmetrically along the first connecting block (6), and the pair of second buttons (701) can synchronously drive the second limiting block (703) to slide.

5. A lawn trimmer with a multi-angle rotatable blade as described in claim 1, characterized in that, It also includes a limiting assembly (3) for disassembling the movable cutter head (1) and the fixed cutter head (15).

6. A lawn trimmer with a multi-angle rotatable blade as described in claim 5, characterized in that, It also includes a first fixing block (2) and a second fixing block (5); the movable cutter head (1) and the fixed cutter head (15) are disposed on the first fixing block (2); the second fixing block (5) is fixedly connected to the first connecting block (6); the first fixing block (2) is detachably connected to the second fixing block (5) through the limiting component (3).

7. A lawn trimmer with a multi-angle rotatable blade as described in claim 6, characterized in that, The limiting component (3) includes a first button (301), a first limiting block (302), a spring sheet (303), and a fixing rod (304); the spring sheet (303) is disposed in the first fixing block (2), and the first limiting block (302) is connected to one end of the spring sheet (303).

8. A lawn trimmer with a multi-angle rotatable blade as described in claim 7, characterized in that, The first button (301) causes the spring sheet (303) to undergo elastic deformation through the fixing rod (304), so that the first limiting block (302) disengages from the second fixing block (5).

Images