Lithium-ion rechargeable electric chainsaw

Abstract

This utility model relates to the field of electric chainsaw technology, and more particularly to a lithium-ion rechargeable electric chainsaw, including an electric chainsaw body; it also includes a lithium battery pack inserted into the bottom of the electric chainsaw body and a slot opened on the top of the lithium battery pack. A transmission mechanism is provided on the front bottom of the electric chainsaw body, and an insert rod is provided on the transmission mechanism. The insert rod has slots on both the left and right sides. The slot has circular grooves on both the left and right sides inside. A spring is provided inside each of the two circular grooves. A sliding rod is connected to the end of the spring near the insert rod. The sliding rod is slidably connected to the circular groove. A locking block is installed on the end of the sliding rod away from the spring. The locking block is adapted to the slot. A toggle component is provided on the upper side of the sliding rod. The toggle component is used to drive the sliding rod to slide left and right. This utility model improves the installation stability of the lithium battery pack by precisely matching the insert rod with the slot on the surface of the lithium battery pack, combined with the locking mechanism of the locking block and the insert rod slot. This double locking structure can effectively prevent battery displacement caused by vibration during operation.

Description

Technical Field

[0001] This utility model relates to the field of electric chainsaw technology, and in particular to a lithium-ion rechargeable electric chainsaw. Background Technology

[0002] The lithium-ion rechargeable electric chainsaw is a portable electric chainsaw powered by a high-capacity lithium battery and driven by a brushless motor. It combines the powerful cutting capabilities of a traditional gasoline chainsaw with the environmentally friendly, energy-saving, low-noise, and zero-emission advantages of power tools. Equipped with an intelligent charging system and safety protection devices, this product can be widely used in garden pruning, timber processing, disaster relief, and other fields. It features easy operation, simple maintenance, and long battery life, making it an ideal choice for outdoor operations.

[0003] Existing lithium-ion rechargeable chainsaws suffer from unstable battery pack connections. Currently, the battery pack is simply plugged into the bottom of the chainsaw without an effective auxiliary positioning structure. This design has significant drawbacks in practical use. When the chainsaw is subjected to external impacts or vibrations during operation, the battery pack is prone to loosening, which not only affects normal operation but may also pose safety hazards. This is especially common during high-intensity cutting operations or moving operations, which greatly reduces work efficiency and user experience.

[0004] Therefore, to address the problem that existing lithium-ion rechargeable chainsaws, where the battery pack is connected to the bottom of the chainsaw via a plug-in connection and lacks an auxiliary positioning structure, making them prone to loosening upon impact, a lithium-ion rechargeable chainsaw can be designed. Utility Model Content

[0005] To overcome the problem that existing lithium-ion rechargeable chainsaws, where the battery pack is connected to the bottom of the chainsaw via a plug-in connection and lacks an auxiliary positioning structure, making them prone to loosening upon impact.

[0006] The technical solution of this utility model is as follows: a lithium-ion rechargeable electric chainsaw, including an electric chainsaw body; it also includes a lithium battery pack inserted into the bottom of the electric chainsaw body and a slot opened on the top of the lithium battery pack. A transmission mechanism is provided on the front bottom of the electric chainsaw body. An insert rod is provided on the transmission mechanism. A slot is opened on both the left and right sides of the insert rod. A circular groove is opened on both the left and right sides of the slot. A spring is provided inside each of the two circular grooves. A sliding rod is connected to the end of the spring near the insert rod. The sliding rod is slidably connected to the circular groove. A locking block is installed on the end of the sliding rod away from the spring. The locking block is adapted to the slot. A toggle component is provided on the upper side of the sliding rod. The toggle component is used to drive the sliding rod to slide left and right.

[0007] Preferably, by setting a transmission mechanism, after the lithium battery pack is inserted into the electric chainsaw body, the transmission mechanism can drive the insertion rod to descend and insert into the slot. During the insertion process, the insertion rod will contact the locking block, forcing the locking block to drive the sliding rod to slide inside the circular groove, thereby causing the spring to contract. After the insertion rod is inserted into the bottom of the slot, the locking block is just flush with the slot. The elastic restoring force of the spring will push the sliding rod, causing the locking block to lock into the slot, thereby limiting the insertion rod, thus limiting the lithium battery pack and preventing the lithium battery pack from slipping and loosening. This solves the problem that in the existing lithium battery rechargeable electric chainsaws, the battery pack is connected to the bottom of the electric chainsaw by insertion, lacks an auxiliary positioning structure, and is prone to loosening when impacted.

[0008] Preferably, the transmission mechanism includes a mounting component and a drive component, wherein the mounting component is used to mount the drive component, and the drive component is used to drive the insertion rod to move up and down.

[0009] Preferably, the mounting assembly includes support rods and a mounting frame. Two support rods are fixed to the lower front end of the electric chainsaw body, and the mounting frame is connected to the front of the two support rods.

[0010] Preferably, the drive assembly includes a knob, a lead screw, and a movable seat. The knob is mounted on the top of the mounting frame, and the lead screw is rotatably connected inside the mounting frame. The knob is used to drive the lead screw to rotate, and the movable seat is threadedly connected to the outside of the lead screw. The movable seat is fixedly connected to the insertion rod.

[0011] Preferably, the actuation assembly includes a connecting rod, a through groove, and a lever. The upper side of the slide rod is connected to the connecting rod, and the upper side of the lithium battery pack is provided with a through groove communicating with the circular groove at the position corresponding to the connecting rod. The top of the connecting rod passes through the through groove and is connected to the lever.

[0012] Preferably, the lower outer side of the electric chainsaw body is provided with two sets of sliding components, and a connecting rod is provided on the front side of each set of sliding components, with a stop bar installed between the two connecting rods.

[0013] Preferably, the sliding assembly includes a guide rail, a slider, and a fixing screw. Guide rails are installed on the lower ends of both the left and right sides of the electric chainsaw body. A slider is slidably connected inside the guide rail. A fixing screw is connected to the slider. The slider is fixed to the guide rail by the fixing screw. The slider is fixedly connected to the corresponding connecting rod.

[0014] The beneficial effects of this utility model are:

[0015] By precisely engaging the insertion rod with the slot on the surface of the lithium battery pack, and combining the locking mechanism of the locking block and the insertion rod slot, the installation stability of the lithium battery pack is significantly improved. This dual-locking structure effectively prevents battery displacement caused by vibration during operation, reduces the risk of poor contact, and simplifies the disassembly and assembly process. Its anti-loosening characteristics can extend the service life of the battery interface and reduce maintenance costs. It is especially suitable for shared battery scenarios with high-frequency disassembly and assembly, providing reliable technical support for the battery swapping mode, and balancing safety and ease of operation. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the lithium battery pack of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the transmission mechanism of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the card block of this utility model;

[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the stop bar of this utility model.

[0021] Explanation of reference numerals in the attached diagram: 1. Electric chainsaw body; 2. Lithium battery pack; 31. Support rod; 32. Mounting frame; 33. Knob; 34. Lead screw; 35. Moving base; 4. Insert rod; 5. Slot; 6. Slot; 7. Spring; 8. Slide rod; 9. Locking block; 101. Connecting rod; 102. Through slot; 103. Pulling block; 111. Guide rail; 112. Slider; 113. Fixing screw; 12. Connecting rod; 13. Stop bar. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-5This utility model provides an embodiment of a lithium-ion rechargeable electric chainsaw, including an electric chainsaw body 1; it also includes a lithium battery pack 2 inserted into the bottom of the electric chainsaw body 1 and a slot 6 opened on the top of the lithium battery pack 2. A transmission mechanism is provided on the front bottom of the electric chainsaw body 1, and an insertion rod 4 is provided on the transmission mechanism. Slots 5 are opened on both the left and right sides of the insertion rod 4. Circular grooves are opened on both the left and right sides inside the slot 6. Springs 7 are provided inside both circular grooves. A sliding rod 8 is connected to the end of the spring 7 near the insertion rod 4. The sliding rod 8 is slidably connected to the circular groove. A locking block 9 is installed at the end of the sliding rod 8 away from the spring 7. The locking block 9 is adapted to the locking groove 5. An actuating component is provided on the upper side. The actuating component is used to drive the slide bar 8 to slide left and right. After the lithium battery pack 2 and the electric chainsaw body 1 are connected, the transmission mechanism drives the insertion rod 4 to move downward into the slot 6. During the downward movement of the insertion rod 4, it contacts the locking block 9 and pushes the locking block 9 to drive the slide bar 8 to slide along the circular groove, forcing the spring 7 to compress. When the insertion rod 4 reaches the bottom of the slot 6, the locking block 9 moves to the position aligned with the slot 5. At this time, the spring 7 releases its elastic potential energy, pushes the slide bar 8 to reset, and makes the locking block 9 embedded in the slot 5. Through the mechanical interlock between the insertion rod 4 and the locking block 9, the axial limit of the lithium battery pack 2 is achieved, preventing it from axial displacement or loosening in the working state.

[0024] Please see Figures 1-3 In this embodiment, the transmission mechanism includes an installation component and a drive component. The installation component is used to install the drive component, and the drive component is used to drive the insertion rod 4 to move up and down. The installation component includes a support rod 31 and an installation frame 32. Two support rods 31 are fixed to the lower front side of the electric chainsaw body 1. The front side of the two support rods 31 is connected to the installation frame 32. The support rods 31 are used to position and install the installation frame 32. The drive component includes a knob 33, a lead screw 34, and a movable seat 35. A knob 33 is installed on the top of the installation frame 32. The lead screw 34 is rotatably connected inside the installation frame 32. The knob 33 is used to drive the lead screw 34 to rotate. The movable seat 35 is threaded through the outer side of the lead screw 34. The movable seat 35 is fixedly connected to the insertion rod 4. By setting the knob 33, the lead screw 34 can be rotated when the knob 33 is rotated, thereby driving the movable seat 35 on its surface to move up and down, thereby driving the insertion rod 4 to move up and down.

[0025] Please see Figures 2-5In this embodiment, the actuating assembly includes a connecting rod 101, a through groove 102, and a lever 103. The upper side of the slide rod 8 is connected to the connecting rod 101. The upper side of the lithium battery pack 2 is provided with a through groove 102 corresponding to the position of the connecting rod 101, which communicates with the circular groove. The top of the connecting rod 101 passes through the through groove 102 and is connected to the lever 103. By setting the lever 103, when it is necessary to remove the insert rod 4, the two levers 103 are moved to the sides by fingers. The levers 103 drive the slide rod 8 to slide through the connecting rod 101, thereby removing the locking block 9 from the inside of the locking groove 5, thus releasing the positioning of the insert rod 4. Two sets of sliding assemblies are provided on the lower outer side of the electric chainsaw body 1. A connecting rod 12 is provided on the front side of each of the two sets of sliding assemblies. A stop bar 1 is installed between the two connecting rods 12. 3. By setting the stop bar 13, the lithium battery pack 2 can be positioned. The sliding component includes a guide rail 111, a slider 112, and a fixing screw 113. The lower ends of the left and right sides of the electric chainsaw body 1 are equipped with guide rails 111. The slider 112 is slidably connected inside the guide rail 111. The slider 112 is connected to the fixing screw 113. The slider 112 is fixed to the guide rail 111 by the fixing screw 113. The slider 112 is fixedly connected to the corresponding connecting rod 12. By setting the slider 112, the slider 112 can slide inside the guide rail 111. After the lithium battery pack 2 is installed, the stop bar 13 can be attached to the front side of the lithium battery pack 2 by the slider 112 to position it. When the lithium battery pack 2 needs to be removed, the stop bar 13 is moved forward.

[0026] After inserting the lithium battery pack 2 into the bottom of the electric chainsaw body 1, rotate the knob 33. The knob 33 drives the lead screw 34 to rotate, and the lead screw 34 causes the moving seat 35 to move downward. The moving seat 35 causes the insertion rod 4 to descend and insert into the slot 6 of the lithium battery pack 2. During the insertion process, the side of the insertion rod 4 applies pressure to the locking block 9, forcing the locking block 9 to drive the slide rod 8 to slide in the circular groove and compress the spring 7. When the insertion rod 4 is fully inserted into the bottom of the slot 6, the locking block 9 aligns with the locking groove 5 on the insertion rod 4. The elastic restoring force of the spring 7 pushes the slide rod 8, causing the locking block 4 to move downward. Block 9 is inserted into slot 5 to fix the insertion rod 4 and prevent the lithium battery pack 2 from slipping or loosening. When the lithium battery pack 2 needs to be removed, the levers 103 on both sides are moved to both sides. The levers 103 drive the slide rod 8 to slide through the connecting rod 101, so that the block 9 is disengaged from the slot 5. Then, the knob 33 is rotated in the opposite direction to raise the insertion rod 4, so that the lithium battery pack 2 can be removed. In addition, after the lithium battery pack 2 is installed, the stop rod 13 can be made to fit against the front side of the lithium battery pack 2 by sliding the slider 112 on the sliding guide rail 111 and tightening the fixing screw 113, so as to provide auxiliary positioning.

[0027] Through the above steps, when the lithium battery pack 2 is inserted into the electric chainsaw body 1, the transmission mechanism is activated, driving the insertion rod 4 to move downwards in the vertical direction, so that it is inserted into the slot 6. During the downward movement of the insertion rod 4, its side wall contacts the locking block 9 and applies lateral pressure, forcing the locking block 9 to drive the sliding rod 8 to slide in the circular groove, while compressing the spring 7. When the insertion rod 4 is fully inserted into the bottom of the slot 6, the locking block 9 moves to the position corresponding to the slot 5. At this time, the compressed spring 7 releases its elastic restoring force, pushing the sliding rod 8 back to its original position, so that the locking block 9 is embedded in the slot 5, forming a mechanical lock, realizing the rigid limitation of the lithium battery pack 2, ensuring that it will not loosen under vibration or impact conditions, improving the connection reliability. This solves the problem that the existing lithium battery rechargeable electric chainsaws connect the battery pack to the bottom of the electric chainsaw by plugging in, lacking an auxiliary positioning structure, and are prone to loosening when impacted.

Claims

1. A lithium-ion rechargeable electric chainsaw, comprising an electric chainsaw body (1); characterized in that: It also includes a lithium battery pack (2) inserted into the bottom of the electric chainsaw body (1) and a slot (6) opened on the top of the lithium battery pack (2). A transmission mechanism is provided on the front bottom of the electric chainsaw body (1). A rod (4) is provided on the transmission mechanism. A slot (5) is opened on both the left and right sides of the rod (4). A round groove is opened on both the left and right sides of the slot (6). A spring (7) is provided inside the two round grooves. A slide rod (8) is connected to the end of the spring (7) near the rod (4). The slide rod (8) is slidably connected to the round groove. A block (9) is installed on the end of the slide rod (8) away from the spring (7). The block (9) is adapted to the slot (5). A toggle component is provided on the upper side of the slide rod (8). The toggle component is used to drive the slide rod (8) to slide left and right.

2. The lithium-ion battery rechargeable electric chainsaw according to claim 1, characterized in that: The transmission mechanism includes a mounting component and a drive component. The mounting component is used to mount the drive component, and the drive component is used to drive the plug rod (4) to move up and down.

3. The lithium-ion battery rechargeable electric chainsaw according to claim 2, characterized in that: The mounting assembly includes support rods (31) and mounting frame (32). Two support rods (31) are fixed to the lower front side of the electric chainsaw body (1), and the mounting frame (32) is connected to the front side of the two support rods (31).

4. The lithium-ion battery rechargeable electric chainsaw according to claim 3, characterized in that: The drive assembly includes a knob (33), a lead screw (34), and a movable seat (35). The knob (33) is mounted on the top of the mounting frame (32). The lead screw (34) is rotatably connected inside the mounting frame (32). The knob (33) is used to drive the lead screw (34) to rotate. The movable seat (35) is threadedly connected to the outside of the lead screw (34). The movable seat (35) is fixedly connected to the insert rod (4).

5. The lithium-ion battery rechargeable electric chainsaw according to claim 1, characterized in that: The actuation assembly includes a connecting rod (101), a through groove (102), and a lever (103). The upper side of the slide rod (8) is connected to the connecting rod (101). The upper side of the lithium battery pack (2) is provided with a through groove (102) corresponding to the position of the connecting rod (101), which communicates with the circular groove. The top of the connecting rod (101) passes through the through groove (102) and is connected to the lever (103).

6. The lithium-ion battery rechargeable electric chainsaw according to claim 1, characterized in that: Two sets of sliding components are provided on the lower outer side of the electric chainsaw body (1). A connecting rod (12) is provided on the front side of each set of sliding components, and a stop bar (13) is installed between the two connecting rods (12).

7. The lithium-ion battery rechargeable electric chainsaw according to claim 6, characterized in that: The sliding assembly includes a guide rail (111), a slider (112), and a fixing screw (113). The lower ends of the left and right sides of the electric chainsaw body (1) are equipped with guide rails (111). The slider (112) is slidably connected inside the guide rail (111). The fixing screw (113) is connected to the slider (112). The slider (112) is fixed to the guide rail (111) by the fixing screw (113). The slider (112) is fixedly connected to the corresponding connecting rod (12).

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