Quick rope changing lawnmower

Abstract

The utility model provides a kind of quick rope-changing mower, including handle rod, the handle rod one end installs motor, and the motor is installed cutting device by transmission shaft;The cutting device includes shell, and the shell center is installed reel, and the reel is installed wire rope on coiling, and the reel both sides are installed active toothed rope wheel by motor, and the active toothed rope wheel both sides are installed receiving seat, and the receiving seat upper side is installed toothed idler wheel by electric push rod, and the wire rope is passed between active toothed rope wheel and toothed idler wheel after from shell first wire hole, and the receiving seat front side is installed blade by spring rotation, and the blade is located wire rope upper side.The handle rod other end installs handle, and the handle below and located handle rod one side are installed shearing handle by guide vane rotation, and the shearing handle is connected with inner core steel wire one end, and the inner core steel wire other end extends to the blade inside reel, and wire rope is cut after the blade is rotated by pulling handle.

Description

Technical Field

[0001] This utility model relates to the field of lawn mowing machinery technology, specifically to a quick-change rope lawn mower. Background Technology

[0002] Currently, in the fields of garden maintenance and small lawn trimming, handheld lawnmowers are generally used, which employ high-speed rotating nylon mowing ropes as cutting blades and are driven by electric motors or gasoline engines. They are suitable for fine trimming of lawns and gardens.

[0003] However, the following technical problems exist: The first step in replacing the mowing rope is often to disassemble the mowing head or starter assembly. This usually requires tools such as screwdrivers or socket wrenches and may involve removing multiple screws or bolts. After replacement, reassembly is also necessary. Specifically, when changing the rope, the power must first be turned off, the mowing head housing removed, the spool taken out, and then the old rope residue cleaned up. The new mowing rope of the appropriate length is measured and cut. The new rope is then manually wound into the groove of the spool in the correct direction, paying attention to the pressure and alignment. The spool is then reinstalled into the mowing head, the rope end is pulled out, and the assembly is tested. These operations are not only time-consuming for ordinary users but also increase the complexity of the operation. Changing the rope on a current lawnmower requires tedious disassembly and reassembly. Utility Model Content

[0004] The purpose of this invention is to provide a fast rope-changing lawnmower that can solve the technical problem of slow rope-changing speed in existing lawnmowers.

[0005] To achieve the above objectives, this utility model proposes a quick rope-changing lawn mower, including a handle, an electric motor mounted on one end of the handle, and a cutting device mounted on the electric motor via a transmission shaft; The cutting device includes a housing, a winding reel is mounted at the center of the housing, a rope is wound on the winding reel, active toothed rope feeding wheels are mounted on both sides of the winding reel via motors, receiving seats are mounted on both sides of the active toothed rope feeding wheels, and a toothed idler wheel is mounted above the receiving seats via an electric push rod. The rope passes between the active toothed rope feeding wheels and the toothed idler wheel and then exits through the first wire hole of the receiving seat. A blade is mounted on the front side of the receiving seat via a spring, and the blade is located above the rope.

[0006] A handle is installed at the other end of the handle rod. A cutting handle is installed below the handle and on one side of the handle rod by rotation. The cutting handle is connected to one end of the inner core steel wire, and the other end of the inner core steel wire extends to the blade inside the winding reel. The blade is rotated by pulling the handle to cut the wire.

[0007] Further configured, one end of the inner core steel wire passes through the top guide plate and is connected to the mounting joint. The top of the mounting joint is rotatably mounted with a shearing handle via a cylindrical pin. A support rod is installed between the cylindrical pin and the guide plate. The design of the guide plate and the support rod ensures that the inner core steel wire maintains a stable path during the pulling process.

[0008] Further configured, the active toothed rope feeding wheel and the toothed idler wheel form a clamping structure. After the active toothed rope feeding wheel rotates, the rope is transported by the friction of the toothed grooves on the wheel bodies of the active toothed rope feeding wheel 7 and the toothed idler wheel. This structure utilizes the friction generated by the toothed grooves to effectively clamp and transport the rope, preventing the rope from slipping or falling off.

[0009] A further configuration is that the blade is mounted on the front side of the receiving seat via a rotating shaft, and a spring is installed between the blade and the receiving seat. The spring design allows the blade to automatically return to its initial position after cutting, eliminating the need for manual adjustment and ensuring the repeatability and consistency of the cutting action.

[0010] Further configured, several guide plates are fixedly installed on one side of the handle rod, and an outer protective sleeve is installed inside the guide plates. A fixing ring is fixedly installed on one side of the receiving seat of the lawnmower, and the outer protective sleeve extends to the fixing ring. The inner core steel wire passes through the fixing ring and connects to the blade. The guide plates and the outer protective sleeve provide physical protection for the steel wire to prevent the steel wire from being damaged by external impact or environmental factors (such as dust and moisture).

[0011] A further configuration is that one end of the handle rod is equipped with a motor through a motor protective shell. The motor is fixedly installed inside the motor protective shell, which can effectively isolate the motor from the external environment, prevent dust, weeds or moisture from entering, reduce motor wear and malfunctions, and extend its service life.

[0012] Further configured, the handle is hollow, and a wire is installed inside the handle. One end of the wire is connected to the handle. A stop button, a synchronous motor start / stop switch, and a start / stop button are installed sequentially above the handle along its length. The other end of the wire is connected to a lithium battery, which supplies power to each motor through the wire.

[0013] Further configured, the wire extends into the lawnmower through the second wire hole, the stop button is connected to the motor through the wire, the synchronous motor start / stop switch is connected to the electric push rod through the wire, the start / stop button is connected to the motor through the wire, and the stop button, synchronous motor start / stop switch and start / stop button control the motor's on / off state.

[0014] A further feature is that the lithium battery is equipped with a shoulder strap, so that the operator can carry the battery while using it.

[0015] A further configuration is provided, wherein a directional handle is installed on the front side of the handle, and the directional handle swings the grass-cutting device when the cutting device is operated.

[0016] The beneficial effects of one or more of the above technical solutions: When the mowing rope is worn out and needs replacement, squeezing the handle pulls two parallel inner steel wires along the sleeve's axial direction. The other end of the wires is connected to the blade via a fixing device, causing the blade to cut the mowing rope. When the handle is released, the wires are pulled outward, the blade returns to its original position, and the cutting operation is complete. Compared to traditional manual shearing, this device can safely, quickly, and conveniently cut mowing ropes, ensuring work efficiency. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0018] Figure 1 This is a schematic diagram of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure at point A of this utility model.

[0020] Figure 3 This is a schematic diagram of the toothed idler wheel and the active toothed rope feeding wheel of this utility model.

[0021] Figure 4 This is a schematic diagram of the shear handle of this utility model.

[0022] Figure 5 This is a schematic diagram of the blade mounting structure of this utility model.

[0023] In the diagram: 1. Handle lever; 4. Cutting device; 5. Housing; 6. Winding reel; 7. Active toothed rope feeder; 8. Motor; 9. Receiver; 10. Electric push rod; 11. Toothed idler wheel; 12. Rope; 13. First wire hole; 14. Blade; 15. Spring; 16. Handle; 18. Cutting handle; 19. Inner core steel wire; 20. Guide plate; 21. Mounting connector; 22. Cylindrical pin; 23. Support rod; 24. Rotating shaft; 25. Outer protective sleeve; 26. Fixing ring; 27. Motor protective housing; 28. Wire; 29. ​​Stop button; 30. Synchronous motor start / stop switch; 31. Start / stop button; 32. Lithium battery; 33. Second wire hole; 34. Shoulder straps; 35. Directional handle. Detailed Implementation

[0024] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0025] A quick-change rope lawnmower, as shown in the reference Figures 1-5 The device includes a handle rod 1, one end of which is equipped with an electric motor. The electric motor is connected to a cutting device 4 via a drive shaft (the electric motor is an existing product, and the installation method of the electric motor and drive shaft is an existing structure. The electric motor and drive shaft are covered by a protective housing and are therefore not shown in the figure). The cutting device 4 includes a housing 5, a winding reel 6 is installed at the center of the housing 5, a rope 12 is wound on the winding reel 6, active toothed rope feeding wheels 7 are installed on both sides of the winding reel 6 via motors 8, receiving seats 9 are installed on both sides of the active toothed rope feeding wheels 7, and a toothed idler wheel 11 is installed above the receiving seats 9 via an electric push rod 10. The rope 12 passes between the active toothed rope feeding wheels 7 and the toothed idler wheel 11 and then exits through the first wire hole 13 of the receiving seat 95. A blade 14 is rotatably installed on the front side of the receiving seat 9 via a spring 15, and the blade 14 is located above the rope 12. A handle 16 is installed at the other end of the handle rod 1. A cutting handle 18 is rotatably installed below the handle 16 and on one side of the handle rod 1 via a support rod 23. The cutting handle 18 is connected to one end of the inner core steel wire 19. The other end of the inner core steel wire 19 extends to the blade 14 inside the winding reel 6. The blade 14 is rotated by pulling the handle 18 to cut the wire rope 12.

[0026] One end of the inner core steel wire 19 passes through the top guide plate 20 and connects to the mounting joint 21. The top of the mounting joint 21 is rotatably mounted to the shearing handle 18 via a cylindrical pin 22. A support rod 23 is installed between the cylindrical pin 22 and the guide plate 20. The design of the guide plate 20 and the support rod 23 ensures that the inner core steel wire 19 maintains a stable path during pulling, reducing friction and bending loss of the steel wire and extending its service life. The mounting joint 21 and the cylindrical pin 22 provide a flexible turning point, making the operation of the shearing handle 18 more effortless and smooth. Users only need to gently squeeze to trigger the shearing action, improving operating comfort and response speed, and further enhancing the reliability of remote shearing.

[0027] The active toothed rope feeding wheel 7 and the toothed idler wheel 11 form a clamping structure. After the active toothed rope feeding wheel 7 rotates, the rope 12 is transported through the friction of the toothed grooves on the wheel bodies of the active toothed rope feeding wheel 7 and the toothed idler wheel 11. Utilizing the friction generated by the toothed grooves, the rope 12 is effectively clamped and transported, preventing slippage or detachment, and ensuring the accuracy and continuity of rope feeding. Compared to traditional manual rope feeding, this design has a high degree of automation, reduces user intervention, avoids rope jamming or waste, and improves the success rate and efficiency of rope replacement. It is particularly suitable for ropes of different diameters.

[0028] The blade 14 is mounted on the front side of the receiving seat 9 via a pivot 24. A spring 15 is installed between the blade 14 and the receiving seat 9. The spring 15 is designed to allow the blade 14 to automatically return to its initial position after cutting, eliminating the need for manual adjustment and ensuring the repeatability and consistency of the cutting action. The pivot 24 allows the blade 14 to rotate flexibly, ensuring accurate alignment with the wire 12 during cutting, thus improving cutting efficiency and success rate.

[0029] Several guide plates 20 are fixedly installed on one side of the handle 1. An outer protective sleeve 25 is installed inside each guide plate 20. A fixing ring 26 is fixedly installed on one side of the mower's receiving seat 9. The outer protective sleeve 25 extends to the fixing ring 26. The inner core steel wire 19 passes through the fixing ring 26 and connects to the blade 14. The guide plates 20 and the outer protective sleeve 25 provide physical protection for the steel wire 19, preventing damage from external impacts or environmental factors (such as dust and moisture), thus improving the system's durability. The fixing ring 26 ensures a fixed steel wire path, preventing twisting or tangling, guaranteeing accurate transmission of shearing force, making remote shearing actions more reliable and precise, and reducing the failure rate.

[0030] One end of the handle rod 1 is equipped with a motor through a motor protective shell 27. The motor is fixedly installed inside the motor protective shell 27. The motor protective shell 27 can effectively isolate the motor from the external environment, prevent dust, weeds or moisture from entering, reduce motor wear and failure, and extend its service life.

[0031] The handle 1 is hollow, and a wire 28 is installed inside it. One end of the wire 28 is connected to the handle 16. Above the handle 16 and along its length, a stop button 29, a synchronous motor start / stop switch 30, and a start / stop button 31 are installed sequentially. The other end of the wire 28 is connected to a lithium battery 32. The hollow handle 1 design allows the wire 28 to be internally installed, avoiding the clutter and potential safety hazards caused by external wiring, and improving the aesthetics and safety of the equipment. Multiple buttons (stop button 29, synchronous motor start / stop switch 30, and start / stop button 31) are centrally located on the handle 16, facilitating quick operation and enabling precise control of the motor, electric actuator 10, etc., thus improving operational convenience. Powered by the lithium battery 32, the equipment is freed from the constraints of a power cord, increasing portability and applicability.

[0032] The wire 28 extends into the lawnmower through the second wire hole 33. The stop button 29 is connected to the motor via the wire 28, the synchronous motor start / stop switch 30 is connected to the electric push rod 10 via the wire 28, and the start / stop button 31 is connected to the motor 8 via the wire 28. The wire 28 enters the lawnmower through the second wire hole 33, ensuring a neat and sealed connection and reducing the risk of damage caused by exposed wires. The clear button function assignment (stop button 29 controls the motor, synchronous motor start / stop switch 30 controls the electric push rod 10, and start / stop button 31 controls the motor 8) allows users to intuitively and quickly control different components, avoiding misoperation and improving equipment safety and operating efficiency.

[0033] The lithium battery 32 is equipped with shoulder straps 34, which allow the user to carry the lithium battery 32 on their shoulders, distributing the weight of the equipment, reducing the burden on the arms and wrists, and decreasing fatigue caused by prolonged operation. This not only improves user comfort but also makes the lawnmower easier to move in large or complex terrain, enhancing operational flexibility and efficiency.

[0034] A directional handle 35 is mounted on the front side of the handle 16. The directional handle 35 allows the user to more precisely control the direction and angle of the lawnmower's movement, especially when turning or fine-tuning, improving operational flexibility and accuracy. Although the specific embodiments of this utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of this utility model are still within the scope of protection of this utility model.

Claims

1. A quick-change rope lawnmower, characterized in that, Includes a handle, one end of which is equipped with an electric motor, and the electric motor is equipped with a cutting device via a drive shaft; The cutting device includes a housing, a winding reel installed at the center of the housing, a rope wound on the winding reel, active toothed rope feeding wheels installed on both sides of the winding reel via motors, receiving seats installed on both sides of the active toothed rope feeding wheels, and a toothed idler wheel installed above the receiving seats via an electric push rod. The rope passes between the active toothed rope feeding wheels and the toothed idler wheel and then exits through the first wire hole in the housing. A blade is installed on the front side of the receiving seat via a spring, and the blade is located above the rope. A handle is installed at the other end of the handle rod. A cutting handle is installed below the handle and on one side of the handle rod via a guide plate. The cutting handle is connected to one end of the inner core steel wire, and the other end of the inner core steel wire extends to the blade inside the winding reel. The blade is rotated by pulling the handle to cut the wire.

2. The quick-rope-changing lawnmower according to claim 1, characterized in that, One end of the inner core steel wire passes through the top guide plate and is connected to the mounting joint. The top of the mounting joint is rotatably mounted with a shearing handle via a cylindrical pin. A support rod is installed between the cylindrical pin and the guide plate.

3. A quick-rope-changing lawnmower according to claim 1, characterized in that, The active toothed rope feeding wheel and the toothed idler wheel form a clamping structure. After the active toothed rope feeding wheel rotates, the rope is transported by the friction of the toothed grooves on the wheel bodies of the active toothed rope feeding wheel and the toothed idler wheel.

4. A quick-rope-changing lawnmower according to claim 1, characterized in that, The blade is mounted on the front side of the receiving seat via a pivot, and a spring is installed between the blade and the receiving seat.

5. A quick-rope-changing lawnmower according to claim 1, characterized in that, Several guide plates are fixedly installed on one side of the handle rod, and an outer protective sleeve is installed inside the guide plate. A fixing ring is fixedly installed on one side of the receiving seat of the lawnmower, and the outer protective sleeve extends to the fixing ring. The inner core steel wire passes through the fixing ring and connects to the blade.

6. A quick-rope-changing lawnmower according to claim 1, characterized in that, One end of the handle rod is fitted with a motor through a motor protective housing, and the motor is fixedly installed inside the motor protective housing.

7. A quick-rope-changing lawnmower according to claim 1, characterized in that, The handle is hollow and has a wire inside. One end of the wire is connected to the handle. A stop button, a synchronous motor start / stop switch, and a start / stop button are installed sequentially on the top of the handle along its length. The other end of the wire is connected to a lithium battery.

8. A quick-rope-changing lawnmower according to claim 7, characterized in that, The wire extends into the lawnmower through the second wire hole. The stop button is connected to the motor through the wire, the synchronous motor start / stop switch is connected to the electric push rod through the wire, and the start / stop button is connected to the motor through the wire.

9. A quick-rope-changing lawnmower according to claim 7, characterized in that, The lithium battery is equipped with shoulder straps.

10. A quick-rope-changing lawnmower according to claim 1, characterized in that, A directional handle is mounted on the front side of the handle.

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