Lithium battery chain saw with reduction gearbox

Abstract

The utility model provides a lithium battery chain saw with a reduction gearbox, which relates to the technical field of lithium battery chain saws and comprises a main body, and an operating handle is fixedly mounted at the top of the main body; a pressing type switch is arranged on the inner side of the operation handle; a cover plate is fixedly mounted on the rear side of the main body through bolts; a transmission chain wheel is rotationally mounted at the front end in the main body; a chain saw guide plate is clamped at the front end of the main body; and the chain saw guide plate and the transmission chain wheel are jointly provided with a chain saw. The traditional tedious steps of firstly disassembling and then assembling are abandoned, so that the battery replacement process is simpler, more convenient and faster, the situation that the use of the lithium battery chain saw is interrupted due to battery replacement is effectively avoided, the working efficiency is improved, and the problem that when the battery needs to be replaced, a user must firstly disassemble the battery with the exhausted electric quantity and then install a new battery in place, and the use cost is reduced is solved. And the process undoubtedly reduces the efficiency of battery replacement, so that the use continuity and the working efficiency of the lithium battery chain saw are influenced.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery chainsaw technology, and in particular to a lithium battery chainsaw with a speed reducer. Background Technology

[0002] Lithium-ion battery chainsaws use lithium batteries as a power source. The motor drives the sprocket to rotate, which in turn drives the saw chain to move at high speed along the guide plate for sawing. Lithium-ion battery chainsaws have the advantages of strong power, long battery life, and high cutting efficiency. They are also simple in design and easy to operate.

[0003] Currently, lithium-ion chainsaws on the market generally rely on a single lithium battery as their power source during operation. Although they are usually equipped with additional lithium batteries for emergencies, these spare batteries cannot be directly installed on the chainsaw and must be stored separately. This practice not only often leads to the loss of spare batteries, but also requires users to remove the depleted battery and install the new battery when it is necessary to replace the battery. This process undoubtedly reduces the efficiency of battery replacement, thereby affecting the continuity of use and work efficiency of the lithium-ion chainsaw. Summary of the Invention

[0004] This disclosure relates to a lithium-ion battery chainsaw with a reduction gearbox. By setting up two battery structures and storing them in a mounting frame, both the primary and backup batteries can be stored on the chainsaw, reducing the chance of the backup battery being lost. Simultaneously, the chainsaw can automatically make the charged battery structure contact the energized piece A while disconnecting the deactivated battery structure from the energized piece A. Compared to the traditional method of disassembling and then installing, this chainsaw offers a simpler and faster battery replacement method, minimizing disruption to the use of the lithium-ion battery chainsaw due to battery replacement.

[0005] In a first aspect, this disclosure provides a lithium-ion chainsaw with a reduction gearbox, specifically comprising: a main body, an operating handle fixedly mounted on the top of the main body; a push-button switch provided on the inner side of the operating handle; a cover plate fixedly mounted on the rear side of the main body by bolts; a transmission sprocket rotatably mounted on the front end of the main body; a chainsaw guide plate clamped on the front end of the main body; a chain saw mounted on both the chainsaw guide plate and the transmission sprocket; a baffle fixedly mounted on the top right side of the main body; a reduction gear fixedly mounted on the front left side of the main body; a drive shaft in the reduction gear connected to the transmission sprocket via a spline; a drive motor fixedly mounted on the rear side of the reduction gear; a drive shaft of the drive motor connected to a driven shaft in the reduction gear; the drive motor connected to a switch via a controller; a contraction groove centrally located at the rear end of the main body; a limit post slidably mounted on the right side of the interior of the contraction groove; the right end of the limit post having an inclined structure.

[0006] In at least some embodiments,

[0007] One end of the spring is embedded in the left side of the limiting post; the other end of the spring is embedded in the left side wall of the shrinkage groove.

[0008] In at least some embodiments,

[0009] A control lever is also fixedly installed on the outer circumference of the limiting post; a guide groove is provided on the cover plate; and the control lever is also slidably installed in the guide groove on the cover plate.

[0010] In at least some embodiments,

[0011] A power-conducting piece A is located in the center of the right side of the main body; the power-conducting piece A is connected to the drive motor via a circuit; a mounting frame is also slidably installed on the right side of the main body.

[0012] In at least some embodiments,

[0013] The mounting frame has two limiting holes on its left side; the right end of the limiting post can be selectively inserted into either of the limiting holes.

[0014] In at least some embodiments,

[0015] The mounting frame has two storage cavities inside, and each storage cavity contains a battery structure; a power-conducting plate B is provided on the left side of the battery structure.

[0016] In at least some embodiments,

[0017] After the conductive piece B on the battery structure moves to the appropriate position, the conductive piece B will come into contact with the conductive piece A.

[0018] This utility model provides a lithium-ion chainsaw with a reduction gearbox, which has the following advantages:

[0019] I. This utility model, through ingenious design, integrates two battery structures and cleverly uses a mounting frame to place the main and backup batteries, ensuring that both are securely stored on the lithium battery chainsaw, significantly reducing the risk of losing the backup battery.

[0020] 2. When the de-energized battery structure is disconnected from the energized plate A, the chainsaw can automatically make immediate contact between the energized battery structure and the energized plate A, eliminating the cumbersome steps of traditional disassembly and reassembly, making the battery replacement process simpler and faster, effectively avoiding the interruption of lithium battery chainsaw use due to battery replacement, and improving work efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0022] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0023] In the attached diagram:

[0024] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0025] Figure 2 This application shows Figure 1 Another perspective structural diagram;

[0026] Figure 3 This invention relates to a schematic diagram showing the disassembled structure of the cover plate and reducer.

[0027] Figure 4 This application shows Figure 3 Enlarged structural diagram of section A;

[0028] Figure 5 The diagram shows the installation frame and battery structure in a disassembled state according to this application.

[0029] Figure 6 This application shows Figure 5 Another perspective structural diagram;

[0030] List of reference numerals

[0031] 1. Main body; 2. Operating handle; 3. Switch; 4. Cover plate; 5. Drive sprocket; 6. Chainsaw guide plate; 7. Chain saw; 8. Baffle; 9. Reducer; 10. Drive motor; 11. Shrinkage groove; 12. Limiting post; 13. Spring; 14. Control lever; 15. Power-conducting plate A; 16. Mounting frame; 17. Limiting hole; 18. Battery structure; 19. Power-conducting plate B. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] Please refer to Figures 1 to 6 :

[0034] Example 1:

[0035] This utility model proposes a lithium-ion chainsaw with a reduction gearbox, comprising: a main body 1, an operating handle 2 fixedly mounted on the top of the main body 1; a push-button switch 3 provided on the inner side of the operating handle 2; a cover plate 4 fixedly mounted on the rear side of the main body 1 by bolts; a transmission sprocket 5 rotatably mounted on the front end of the interior of the main body 1; a chainsaw guide plate 6 clamped on the front end of the main body 1; a chain saw 7 jointly mounted on the chainsaw guide plate 6 and the transmission sprocket 5; a baffle 8 fixedly mounted on the top right side of the main body 1; a reducer 9 fixedly mounted on the front left side of the main body 1; the drive shaft of the reducer 9 is connected to the transmission sprocket 5 via a spline; a drive motor 10 fixedly mounted on the rear side of the reducer 9; the drive shaft of the drive motor 10 is connected to the driven shaft of the reducer 9; the drive motor 10 is connected to the switch 3 via a controller; a shrinkage groove 11 is provided at the center of the rear end of the main body 1; a limit post 12 is slidably installed on the right side inside the shrinkage groove 11; the right end of the limit post 12 has an inclined structure.

[0036] By pressing switch 3, the drive motor 10 is started under the action of the controller, and the drive motor 10 runs. During the operation, the drive motor 10 will use the reducer 9 to increase the torque and indirectly transmit the force to the transmission sprocket 5, thereby improving the cutting effect of the transmission sprocket 5 and the chain saw 7 on the material.

[0037] In Embodiment 2, based on Embodiment 1, one end of a spring 13 is embedded in the left side of the limiting post 12; the other end of the spring 13 is embedded in the left side wall of the shrinkage groove 11; a control lever 14 is also fixedly installed on the outer circumference of the limiting post 12; a guide groove is provided on the cover plate 4; the control lever 14 is also slidably installed in the guide groove on the cover plate 4; an energized piece A15 is provided in the center of the right side of the main body 1; the energized piece A15 is connected to the drive motor 10 through a circuit; and an installation frame 16 is also slidably installed on the right side of the main body 1.

[0038] After the battery structure 18 at the rear is depleted, the control lever 14 is manually turned to the left, causing the control lever 14 to move the limiting post 12 to the left. After the movement, the limiting post 12 will disengage from the interior of the rear limiting hole 17. At this time, the mounting frame 16 can slide. Then, by sliding the mounting frame 16 backward, the energizing piece B19 on the rear battery structure 18 will disengage from the energizing piece A15, while the energizing piece B19 on the front battery structure 18 will contact and energize the energizing piece A15. After the switching is completed, the control lever 14 is released, and the limiting post 12 will return to its original position under the action of the spring 13 and be inserted into the interior of the front limiting hole 17. Thus, the switching of the battery structure 18 is quickly completed.

[0039] In Example 3, based on Example 2, two limiting holes 17 are provided on the left side of the mounting frame 16; the right end of the limiting post 12 can be selectively inserted into the interior of any one of the limiting holes 17; the interior of the mounting frame 16 has two storage cavities, and each storage cavity contains a battery structure 18; a power-conducting piece B19 is provided on the left side of the battery structure 18; after the power-conducting piece B19 on the battery structure 18 moves to a suitable position, the power-conducting piece B19 will contact the power-conducting piece A15.

[0040] By setting up two battery structures 18 and storing the two battery structures 18 through the mounting frame 16, both the main battery and the spare battery can be stored on this lithium battery chainsaw, reducing the probability of the spare battery being lost.

[0041] The working principle of this embodiment is as follows: By pressing switch 3, the drive motor 10 is started under the action of the controller, causing the drive motor 10 to run. During operation, the drive motor 10 uses the reducer 9 to increase torque and indirectly transmits force to the transmission sprocket 5, thereby improving the cutting effect of the transmission sprocket 5 and the chain saw 7 on the material. After the battery structure 18 at the rear is depleted, the control lever 14 is manually moved to the left, causing the control lever 14 to move the limit post 12 to the left. After the movement, the limit post 12 will... The interior of the rear limiting hole 17 is disengaged. At this time, the mounting frame 16 can slide. Then, by sliding the mounting frame 16 backward, the energizing piece B19 on the rear battery structure 18 is disengaged from the energizing piece A15. At the same time, the energizing piece B19 on the front battery structure 18 is brought into contact with the energizing piece A15 and energized. After the switching is completed, the lever 14 is released, and the limiting post 12 is restored under the action of the spring 13 and inserted into the interior of the front limiting hole 17. Thus, the switching of the battery structure 18 is quickly completed.

[0042] The following points should be noted in this article:

[0043] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0044] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0045] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A lithium-ion chainsaw with a reduction gearbox, comprising: The main body (1) has an operating handle (2) fixedly installed on its top; a push-button switch (3) is provided on the inner side of the operating handle (2); characterized in that a cover plate (4) is fixedly installed on the rear side of the main body (1) by bolts; a transmission sprocket (5) is rotatably installed on the front end of the main body (1); a chainsaw guide plate (6) is clamped on the front end of the main body (1); a chain saw (7) is installed on both the chainsaw guide plate (6) and the transmission sprocket (5); a baffle (8) is fixedly installed on the top right side of the main body (1); and a baffle (8) is fixedly installed on the front left side of the main body (1). A reducer (9) is fixedly installed at one end; the drive shaft of the reducer (9) is connected to the transmission sprocket (5) via a spline; a drive motor (10) is fixedly installed on the rear side of the reducer (9); the drive shaft of the drive motor (10) is connected to the driven shaft of the reducer (9); the drive motor (10) is connected to the switch (3) via a controller; a shrinkage groove (11) is provided at the center of the rear end of the main body (1); a limit post (12) is slidably installed on the right side inside the shrinkage groove (11); the right end of the limit post (12) is inclined.

2. A lithium-ion chainsaw with a reduction gearbox according to claim 1, characterized in that, One end of a spring (13) is embedded in the left side of the limiting post (12); the other end of the spring (13) is embedded in the left side wall of the shrinkage groove (11).

3. A lithium-ion chainsaw with a reduction gearbox according to claim 2, characterized in that, A control lever (14) is also fixedly installed on the outer circumference of the limiting post (12); a guide groove is provided on the cover plate (4); the control lever (14) is also slidably installed in the guide groove on the cover plate (4).

4. A lithium-ion chainsaw with a reduction gearbox according to claim 3, characterized in that, A power-conducting piece A (15) is provided at the center of the right side of the main body (1); the power-conducting piece A (15) is connected to the drive motor (10) through a line; a mounting frame (16) is also slidably installed on the right side of the main body (1).

5. A lithium-ion chainsaw with a reduction gearbox according to claim 4, characterized in that, The mounting frame (16) has two limiting holes (17) on its left side; the right end of the limiting post (12) can be selectively inserted into either of the limiting holes (17).

6. A lithium-ion chainsaw with a reduction gearbox according to claim 5, characterized in that, The mounting frame (16) has two storage cavities inside, and each storage cavity contains a battery structure (18); a power-conducting piece B (19) is provided on the left side of the battery structure (18).

7. A lithium-ion chainsaw with a reduction gearbox according to claim 6, characterized in that, After the energized piece B (19) on the battery structure (18) moves to the appropriate position, the energized piece B (19) will come into contact with the energized piece A (15).

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