A lithium battery powered folding lawnmower

Abstract

The utility model relates to a kind of mower powered by lithium battery, specifically a kind of folding mower powered by lithium battery, including vehicle body and rotating arm, first screw tightening handle and second screw tightening handle are provided on the rotating arm, telescopic handle is slidably installed in the one end of the rotating arm, the rotating arm is extrudedly cooperated with the outer expansion mechanism sliding in the top of vehicle body, the bottom of the vehicle body is provided with protective box and the closed cover rotationally installed in the bottom of the protective box, the top of the vehicle body is provided with telescopic cutting mechanism and the deflection mechanism matched with telescopic cutting mechanism, the utility model is folded by optimizing the handle folding design of folding mower, when folding handle, cutting knife can be automatically retracted to sealed space, not only reduce the tool abrasion in storage and carrying process, effectively prevent blade from being damaged or scratching other objects, improve equipment durability and operation convenience.

Description

Technical Field

[0001] This utility model relates to a lithium battery-powered lawnmower, specifically a lithium battery-powered folding lawnmower. Background Technology

[0002] A lawnmower is a mechanical tool used to trim lawns, vegetation, etc. Currently, lawnmowers are divided into lithium battery-powered lawnmowers and gasoline lawnmowers. Lithium battery-powered lawnmowers are an ideal choice for families who value environmental protection and a quiet environment because they are environmentally friendly, have low noise, are easy to use, and are highly safe.

[0003] Compared to traditional lawnmowers, folding lawnmowers are more portable and can be folded up for storage, making them suitable for various scenarios where space utilization and ease of movement are important. The handle of many folding lawnmowers is one of the foldable parts, which reduces the floor space occupied by the lawnmower.

[0004] When not in use, the cutting blades of current lawnmowers are exposed, making them susceptible to scratches, chips, or breakage from collisions with other objects during handling, storage, or accidental impacts. Furthermore, in outdoor environments, lawnmowers may be affected by rain, humid air, and other natural factors, impacting the lifespan of the cutting blades. Summary of the Invention

[0005] The purpose of this invention is to provide a lithium-ion battery-powered folding lawnmower to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A lithium-ion battery-powered folding lawnmower includes a body and a rotating arm. The rotating arm is equipped with a first spiral tightening handle and a second spiral tightening handle. A retractable handle is slidably mounted on one end of the rotating arm. The rotating arm is in a compression fit with an expansion mechanism that slides on the top of the body. The bottom of the body is equipped with a protective box and a rotatably mounted cover on the bottom of the protective box. The top of the body is equipped with a retractable cutting mechanism and a deflection mechanism that cooperates with the retractable cutting mechanism.

[0008] The lithium-ion battery-powered folding lawnmower described above: the expansion mechanism includes a squeezing sliding block slidably mounted on the top of the vehicle body and two movable arms symmetrically arranged on one side of the squeezing sliding block. The two movable arms are slidably connected to two limiting frames arranged inside the vehicle body.

[0009] The lithium-battery powered folding lawnmower described above: the expansion mechanism also includes two return springs respectively installed in two limit frames, and the two return springs are respectively connected to one end of the two moving arms.

[0010] The lithium-ion battery-powered folding lawnmower described above: the retractable cutting mechanism includes an electric motor mounted on the top of the vehicle body and a convex shaft disposed on the output shaft of the electric motor, with a drive shaft slidably mounted on the bottom of the convex shaft.

[0011] The lithium-ion battery-powered folding lawnmower described above: the retractable cutting mechanism further includes a cutting disc mounted below the drive shaft and a disc body rotatably mounted on the outer wall of the drive shaft. Two traction arms are rotatably mounted at both ends of the disc body, and the ends of the two traction arms are rotatably connected to two moving arms respectively.

[0012] The lithium-ion battery-powered folding lawnmower described above: The deflection mechanism includes a shaft rotatably mounted inside a protective housing and a hemispherical body disposed on the shaft. A sealing cover is rotatably mounted on the bottom of the shaft. A sleeve and a spiral hemispherical groove formed on the sleeve are slidably mounted on the shaft. The hemispherical body and the spiral hemispherical groove are slidably engaged. One end of the sleeve is rotatably mounted on the outer wall of the drive shaft through a connector.

[0013] The lithium-ion battery-powered folding lawnmower described above has a lithium battery pack installed inside the rear of the vehicle body, which is electrically connected to the electric motor via wires.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by optimizing the folding design of the handle of the folding lawnmower, the cutting blade can automatically retract into the sealed space when the handle is folded, which not only reduces blade wear during storage and transportation, but also effectively prevents the blade from being damaged or scratching other objects, thus improving the durability and ease of operation of the equipment.

[0015] This invention also uses a lithium battery pack to power the electric motor. It does not produce exhaust emissions during use and does not pollute the environment, making it suitable for places with high environmental protection requirements. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a folding lawnmower powered by a lithium battery.

[0017] Figure 2 A schematic diagram of the folded structure in a lithium-ion powered folding lawnmower.

[0018] Figure 3 A bottom-view diagram of the structure in a lithium-ion powered folding lawnmower.

[0019] Figure 4 A top-down view of the folded structure of a lithium-ion powered folding lawnmower.

[0020] Figure 5 A schematic diagram of the internal structure of a folding lawnmower powered by a lithium battery in its folded state.

[0021] Figure 6 A schematic diagram of the internal structure of a folding lawnmower powered by a lithium battery.

[0022] Figure 7 A schematic diagram of the rotating arm, retractable handle, and expansion mechanism in a lithium-ion powered folding lawnmower.

[0023] Figure 8 A schematic diagram of the internal structure of the protective box in a lithium-ion powered folding lawnmower.

[0024] Figure 9 A disassembled diagram of the retractable cutting mechanism and the lithium battery pack structure in a lithium-ion powered folding lawnmower.

[0025] Figure 10 A schematic diagram showing the disassembled structure of the deflection mechanism in a lithium-ion powered folding lawnmower.

[0026] Figure 11 A schematic diagram of the deflection mechanism in a lithium-ion powered folding lawnmower, disassembled at another angle.

[0027] In the diagram: 1. Vehicle body; 2. Rotating arm; 3. First screw tightening handle; 4. Second screw tightening handle; 5. Telescopic handle; 6. Squeezing sliding block; 7. Limiting frame; 8. Return spring; 9. Moving arm; 10. Protective box; 11. Motor; 12. Convex shaft; 13. Drive shaft; 14. Cutting disc; 15. Traction arm; 16. Shaft; 17. Sealing cover; 18. Hemisphere; 19. Sleeve; 20. Helical semicircular groove; 21. Lithium battery pack. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Please see Figures 1-11 As an embodiment of this utility model, the lithium battery-powered folding lawnmower includes a body 1 and a rotating arm 2. The rotating arm 2 is provided with a first spiral tightening handle 3 and a second spiral tightening handle 4. A retractable handle 5 is slidably installed at one end of the rotating arm 2. The rotating arm 2 is in a compression fit with an outward expansion mechanism sliding on the top of the body 1. A protective box 10 and a closed cover 17 rotatably installed on the bottom of the protective box 10 are provided at the bottom of the body 1. A retractable cutting mechanism and a deflection mechanism that cooperates with the retractable cutting mechanism are provided at the top of the body 1.

[0030] In this embodiment, when the lawnmower needs to be folded, firstly, the first spiral tightening handle 3 is rotated to loosen the retractable handle 5. At this time, the retractable handle 5 is retracted into the rotating arm 2. Then, the first spiral tightening handle 3 is rotated again to tighten it, thus fixing the retractable handle 5. At this time, the second spiral tightening handle 4 is rotated to loosen the rotating arm 2, and the rotating arm 2 is flipped downwards and folded. The second spiral tightening handle 4 is tightened again. During this process, the rotating arm 2 will press the outward expansion mechanism downwards, causing the outward expansion mechanism to extend outwards to both sides. Then, the outward expansion mechanism will drive the retractable cutting mechanism to rise upwards, moving it into the protective box 10 for protection. Subsequently, the deflection mechanism will seal the bottom of the protective box 10, automatically retracting the retractable cutting mechanism into the sealed space to protect the blade. When the lawnmower needs to be used, simply rotate the rotating arm 2 to unfold it, moving it out from above the outward expansion mechanism. At this time, the outward expansion mechanism will elastically reset upwards, opening the seal at the bottom of the protective box 10 and causing the retractable cutting mechanism to return to its original position.

[0031] As a further embodiment of this utility model, the expansion mechanism includes a compression sliding block 6 slidably mounted on the top of the vehicle body 1 and two movable arms 9 symmetrically arranged on one side of the compression sliding block 6. The two movable arms 9 are respectively slidably connected to two limiting frames 7 arranged inside the vehicle body 1.

[0032] In this embodiment, the squeezing sliding block 6 slides on the top of the vehicle body 1. The squeezing sliding block 6 and the rotating arm 2 are in a squeezing cooperation. When the rotating arm 2 is folded horizontally, the squeezing sliding block 6 will be squeezed downward. During the downward movement of the squeezing sliding block 6, the two moving arms 9 will move to the sides respectively.

[0033] As a further embodiment of this utility model, the expansion mechanism also includes two return springs 8 respectively installed in the two limit frames 7, and the two return springs 8 are respectively connected to one end of the two moving arms 9.

[0034] In this embodiment, the two return springs 8 are compressed as the two moving arms 9 move to the sides respectively.

[0035] As a further embodiment of this utility model, the retractable cutting mechanism includes a motor 11 mounted on the vehicle body 1 and a convex shaft 12 disposed on the output shaft of the motor 11, wherein a transmission shaft 13 is slidably mounted on the bottom of the convex shaft 12.

[0036] In this embodiment, the drive shaft 13 has a slot that matches the shape of the convex shaft 12, so that the drive shaft 13 can slide under the convex shaft 12.

[0037] As a further embodiment of this utility model, the telescopic cutting mechanism also includes a cutting disc 14 installed below the drive shaft 13 and a disc body rotatably installed on the outer wall of the drive shaft 13. Two traction arms 15 are rotatably installed at both ends of the disc body, and the ends of the two traction arms 15 are rotatably connected to two moving arms 9 respectively.

[0038] In this embodiment, the two moving arms 9 provide traction support for the drive shaft 13 and the cutting disc 14 through the two traction arms 15. As the two moving arms 9 move to the sides respectively, the two moving arms 9 pull the drive shaft 13 into the interior of the protective box 10 through the two traction arms 15.

[0039] As a further embodiment of this utility model, the deflection mechanism includes a shaft 16 rotatably mounted inside the protective box 10 and a hemispherical body 18 disposed on the shaft 16. A sealing cover 17 is rotatably mounted on the bottom of the shaft 16. A sleeve 19 and a spiral hemispherical groove 20 formed on the sleeve 19 are slidably mounted on the shaft 16. The hemispherical body 18 is slidably engaged with the spiral hemispherical groove 20. One end of the sleeve 19 is rotatably mounted on the outer wall of the transmission shaft 13 through a connector.

[0040] In this embodiment, after the drive shaft 13 and the cutting disc 14 move into the interior of the protective box 10, they continue to move. At this time, the sleeve 19 passes over the hemispherical body 18 on the shaft 16. The total number of turns of the spiral semicircular groove 20 is two-thirds of the total number of turns. When the sleeve 19 passes over the hemispherical body 18, the hemispherical body 18 will rotate in the direction of the spiral semicircular groove 20, thereby driving the hemispherical body 18 and the shaft 16 to rotate 240°. This causes the shaft 16 to drive the sealing cover 17 to rotate, so that the sealing cover 17 rotates to cover the opening at the bottom of the protective box 10, so that the protective box 10 is in a closed state, thus protecting the cutting disc 14.

[0041] As a further embodiment of this utility model, a lithium battery pack 21 is provided inside the rear end of the vehicle body 1, and the lithium battery pack 21 is electrically connected to the motor 11 through wires.

[0042] In this embodiment, the electric motor 11 is powered by a lithium battery pack 21, which does not produce exhaust emissions during use and does not pollute the environment, making it suitable for places with high environmental protection requirements.

[0043] The above embodiments are exemplary and not restrictive. Therefore, without departing from the spirit or basic characteristics of this utility model, any technical solutions that can be implemented in other specific forms are included in this utility model.

Claims

1. A lithium-ion battery-powered folding lawnmower, comprising a body (1) and a rotating arm (2), characterized in that, The rotating arm (2) is provided with a first spiral tightening handle (3) and a second spiral tightening handle (4). One end of the rotating arm (2) is slidably mounted with a retractable handle (5). The rotating arm (2) is squeezed into the expansion mechanism that slides on the top of the vehicle body (1). The bottom of the vehicle body (1) is provided with a protective box (10) and a closed cover (17) that is rotatably mounted on the bottom of the protective box (10). The top of the vehicle body (1) is provided with a retractable cutting mechanism and a deflection mechanism that cooperates with the retractable cutting mechanism.

2. A lithium-ion battery-powered folding lawnmower according to claim 1, characterized in that, The expansion mechanism includes a compression sliding block (6) slidably mounted on the top of the vehicle body (1) and two movable arms (9) symmetrically arranged on one side of the compression sliding block (6). The two movable arms (9) are slidably connected to two limiting frames (7) arranged in the vehicle body (1).

3. A lithium-ion battery-powered folding lawnmower according to claim 2, characterized in that, The expansion mechanism also includes two return springs (8) installed in the two limit frames (7) respectively, and the two return springs (8) are respectively connected to one end of the two moving arms (9).

4. A lithium-ion battery-powered folding lawnmower according to claim 3, characterized in that, The retractable cutting mechanism includes an electric motor (11) mounted on the vehicle body (1) and a convex shaft (12) disposed on the output shaft of the electric motor (11), with a transmission shaft (13) slidably mounted on the bottom of the convex shaft (12).

5. A lithium-ion battery-powered folding lawnmower according to claim 4, characterized in that, The telescopic cutting mechanism also includes a cutting disc (14) installed below the drive shaft (13) and a disc body rotatably installed on the outer wall of the drive shaft (13). Two traction arms (15) are rotatably installed at both ends of the disc body, and the ends of the two traction arms (15) are rotatably connected to two moving arms (9).

6. A lithium-ion battery-powered folding lawnmower according to claim 5, characterized in that, The deflection mechanism includes a shaft (16) rotatably mounted inside the protective box (10) and a hemispherical body (18) disposed on the shaft (16). A sealing cover (17) is rotatably mounted on the bottom of the shaft (16). A sleeve (19) and a spiral semicircular groove (20) formed on the sleeve (19) are slidably mounted on the shaft (16). The hemispherical body (18) is slidably engaged with the spiral semicircular groove (20). One end of the sleeve (19) is rotatably mounted on the outer wall of the drive shaft (13) through a connector.

7. A lithium-ion battery-powered folding lawnmower according to claim 6, characterized in that, A lithium battery pack (21) is installed inside the rear end of the vehicle body (1), and the lithium battery pack (21) is electrically connected to the motor (11) through wires.

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