A gardening electric chainsaw

Abstract

This utility model provides an electric chainsaw for gardening, belonging to the field of chainsaw technology. It solves the technical problems of existing chainsaws, such as the lack of an effective anti-accidental activation mechanism, cumbersome chain tension adjustment, and reliance on manual periodic lubrication. It includes a housing, chain plates, a chain, a drive sprocket, a geared motor, a tensioning assembly, a handle, a trigger, a protective plate, an automatic lubrication pump, and a controller. A guide plate is detachably mounted on one end face of the housing. The output shaft of the geared motor is driven by the shaft of the drive sprocket. The tensioning assembly is driven by the chain plates. The automatic lubrication pump and controller are fixed inside the housing. The geared motor, trigger, and automatic lubrication pump are all electrically connected to the controller. A rechargeable battery pack is detachably mounted at the rear end of the housing. This utility model can precisely control start and stop, has anti-accidental activation protection to reduce the risk of accidental activation, can quickly adjust chain tension without additional tools, and can automatically lubricate related components, eliminating the need for manual lubrication.

Description

Technical Field

[0001] This utility model belongs to the field of chainsaw technology and relates to an electric chainsaw for gardening. Background Technology

[0002] In the use of traditional chainsaws, the safety and accuracy of start-stop control have always been pressing issues. Some chainsaws lack effective anti-accidental activation mechanisms, relying solely on a single trigger for start-stop control. This can easily lead to accidental start-up due to accidental contact, posing a significant threat to the personal safety of operators. Furthermore, adjusting chain tension is cumbersome, often requiring additional tools such as screwdrivers for gradual adjustments. This is not only time-consuming and labor-intensive but also makes it difficult to guarantee adjustment accuracy. Improper chain tension can easily lead to slippage and accelerated wear, affecting cutting efficiency and chain lifespan. In addition, chain and chain plate lubrication largely relies on manual periodic oiling. Operators need to frequently interrupt operations for maintenance, increasing their workload and potentially leading to poor lubrication due to untimely or inaccurate oiling, exacerbating component friction and shortening the overall lifespan of the equipment. These problems severely limit the ease of use, safety, and operational efficiency of chainsaws, failing to meet the demands of modern cutting operations for high performance, ease of operation, and low maintenance.

[0003] Therefore, we propose an electric chainsaw for gardening that can precisely control start and stop, has anti-accidental touch protection to reduce the risk of accidental touch, can quickly adjust chain tension without additional tools, and can automatically lubricate related parts, eliminating the need for manual oiling. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing an electric chainsaw for gardening. The technical problem to be solved by this utility model is: how to achieve precise start and stop control of the electric chainsaw, with anti-accidental touch protection to reduce the risk of accidental touch, quick adjustment of chain tension without additional tools, and automatic lubrication of related parts, eliminating the need for manual oiling.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A gardening electric chainsaw includes a housing, chain plates, a chain, a drive sprocket, a geared motor, a tensioning assembly, a handle, a trigger, a protective plate, an automatic oil pump, and a controller. A guide plate is detachably mounted on one side of the housing. The rear end of the chain plate is slidably disposed between the housing and the guide plate in a front-to-back direction. The geared motor is fixed inside the housing. The drive sprocket is rotatably disposed between the housing and the guide plate, located behind the chain plate. The output shaft of the geared motor is connected to the shaft of the drive sprocket. The chain is sleeved on the chain plates and the drive sprocket. The drive sprocket is connected to the tensioning assembly, which is mounted on the housing and corresponds to the chain plate. The tensioning assembly is connected to the chain plate via a drive mechanism. The handle is fixed to the upper end of the housing, and the trigger is located at the lower end of the handle. The protective plate is located at the front end of the housing and is positioned above the chain plate. The automatic oil pump is fixed inside the housing and is located on the side of the chain plate away from the guide plate. The controller is fixed inside the housing. The geared motor, trigger, and automatic oil pump are all electrically connected to the controller. A rechargeable battery pack is detachably mounted at the rear end of the housing.

[0007] The working principle of this utility model is as follows: When the trigger is pressed, the controller receives a signal and starts the reduction motor. The output shaft of the reduction motor drives the drive sprocket to rotate, which in turn drives the chain mounted on the chain plate and the drive sprocket. The chain plate maintains appropriate tension through the tensioning component to ensure stable chain operation. Under the control of the controller, the automatic oil pump can lubricate the chain plate to reduce friction between the chain and the chain plate. The protective plate is located above the chain plate to provide protection and prevent accidents during operation. The handle provides a convenient grip. The rechargeable battery pack provides power. The entire garden electric chainsaw achieves its cutting function through the coordinated work of its components.

[0008] The tensioning assembly includes a handwheel, a screw, a movable block, and a pin. The screw is arranged in the front-to-back direction and is rotatably mounted on the side end face of the housing. The movable block is slidably mounted on the side end face of the housing in the front-to-back direction, and the screw passes through the movable block and is screwed to the movable block. The pin is fixed on the side end face of the movable block away from the housing. A through hole is provided on the chain plate, and the position and specifications of the through hole correspond to the pin. The pin is located inside the through hole. The handwheel is fixed to the rear end of the screw.

[0009] With the above structure, when the handwheel is turned, the screw rotates accordingly. Since the screw is screwed to the moving block, the moving block will slide along the front and back direction on the side surface of the outer casing. The pin fixed on the moving block will drive the chain plate to move, adjusting the distance between the chain plate and the drive sprocket, thereby adjusting the tension of the chain and ensuring that the chain maintains a suitable tension during operation.

[0010] The front end of the housing is fixed with several anti-slip spikes evenly distributed in a linear array. A D-shaped handle is fixed on the side end face of the housing. A battery latch is opened at the rear end of the housing. Contacts are fixed inside the battery latch. The specifications of the battery latch and contacts are adapted to the rechargeable battery pack. The front end of the rechargeable battery pack is detachably latched inside the battery latch. The contacts are electrically connected to the controller.

[0011] With the above structure, the anti-slip spikes at the front of the housing are used to increase the friction between the cutting object and the object, facilitating stable cutting during operation and preventing the object from slipping. The D-shaped handle fixed on the side of the housing provides another gripping point, making it convenient to use in different operating scenarios. The battery slot at the rear of the housing is used to install the battery pack. The battery pack contacts the contacts inside the battery slot, and the contacts are electrically connected to the controller, thereby providing power to the various components of the garden electric chainsaw.

[0012] An oil outlet is provided on one side end face of the outer casing. The oil outlet is located above the rear end of the chain plate and is connected to the oil outlet end of the automatic oil pump.

[0013] With the above structure, when the automatic oil pump is working, lubricating oil is output from the oil outlet of the automatic oil pump and flows through the oil outlet to the upper rear end of the chain plate, thereby lubricating the chain plate and ensuring that the chain runs smoothly on the chain plate.

[0014] The upper end of the grip is slidably provided with a push button, which is slidably set in the front-back direction. The push button is located above the trigger, and a limit block is fixed at the lower end of the push button. The lower end of the limit block abuts against the upper end of the trigger.

[0015] With the above structure, when the push button slides along the front-back direction at the upper end of the grip, the limiting block fixed at its lower end will move with the push button, thereby releasing the limit on the trigger and preventing accidental activation.

[0016] Compared with existing technologies, this electric chainsaw for gardening has the following advantages:

[0017] 1. By working with the trigger and controller, the chainsaw can be started and stopped precisely. At the same time, the push button and the limit block form a protection against accidental activation. The trigger can only be operated when the push button is pushed to release the limit, which can effectively prevent accidental start-up in non-operational state and greatly reduce the risk of accidental activation.

[0018] 2. By setting up a tensioning component, the chain tension can be quickly adjusted without additional tools, solving the problem of cumbersome adjustment in traditional chainsaws and ensuring that the chain always maintains the appropriate tension.

[0019] 3. With the automatic oil pump working in conjunction with the oil outlet, the chain plates and chain can be lubricated automatically. The lubricating oil flows precisely to the rear end of the chain plate through the oil outlet, reducing friction loss between the two, extending the service life of the components, and eliminating the need for manual periodic oiling, thus reducing the operational burden. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the front three-dimensional structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the rear three-dimensional structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the right-side planar structure of this utility model.

[0023] Figure 4 This is an exploded structural diagram of some components in this utility model.

[0024] Figure 5 This is a schematic diagram of the internal structure of the outer shell in this utility model.

[0025] Figure 6 This is a right-view plan view of some components of this utility model.

[0026] In the diagram: 1. Outer shell; 2. Guide plate; 3. Chain plate; 4. Chain; 5. Drive sprocket; 6. Gear motor; 7. Tensioning assembly; 8. Handle; 9. Trigger; 10. Protective plate; 11. Automatic oil pump; 12. Handwheel; 13. Screw; 14. Moving block; 15. Pin; 16. Through hole; 17. Anti-slip spike; 18. D-shaped handle; 19. Battery holder; 20. Oil outlet; 21. Push button; 22. Limit block. Detailed Implementation

[0027] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0028] like Figures 1-6As shown, this garden electric chainsaw includes a housing 1, chain plates 3, chain 4, drive sprocket 5, geared motor 6, tensioning assembly 7, handle 8, trigger 9, protective plate 10, automatic oil pump 11, and controller. A guide plate 2 is detachably mounted on one side of the housing 1. The rear end of the chain plate 3 is slidably positioned between the housing 1 and the guide plate 2 in the front-to-back direction. The geared motor 6 is fixed inside the housing 1. The drive sprocket 5 is rotatably positioned between the housing 1 and the guide plate 2, located behind the chain plate 3. The output shaft of the geared motor 6 is connected to the rotating shaft of the drive sprocket 5. The chain 4 is sleeved on the chain plate 3 and the drive sprocket 5. The tensioning assembly 7 is mounted on the housing 1 and is connected to the drive sprocket 5. The tensioning assembly 7 is positioned corresponding to the chain plate 3 and is connected to the chain plate 3. The handle 8 is fixed to the upper end of the housing 1. The trigger 9 is rotatably mounted at the lower end of the handle 8. The protective plate 10 is mounted at the front end of the housing 1 and is located above the chain plate 3. The automatic oil pump 11 is fixed inside the housing 1 and is located on the side of the chain plate 3 away from the guide plate 2. The controller is fixed inside the housing 1. The geared motor 6, the trigger 9, and the automatic oil pump 11 are all electrically connected to the controller. The rear end of the housing 1 is detachably equipped with a rechargeable battery pack.

[0029] In this embodiment, when trigger 9 is pressed, the controller receives a signal and starts the reduction motor 6. The output shaft of the reduction motor 6 drives the drive sprocket 5 to rotate, and the drive sprocket 5 in turn drives the chain 4, which is sleeved on the chain plate 3 and the drive sprocket 5, to rotate. The chain plate 3 maintains appropriate tension through the tensioning component 7 to ensure that the chain 4 can run stably. Under the control of the controller, the automatic oil pump 11 can lubricate the chain plate 3 to reduce the friction between the chain 4 and the chain plate 3. The protective plate 10 is located above the chain plate 3 and plays a protective role to prevent accidents during operation. The handle 8 provides a gripping part for easy operation. The rechargeable battery pack provides power. The entire garden electric chainsaw achieves the cutting function through the coordinated work of its components.

[0030] The tensioning assembly 7 includes a handwheel 12, a screw 13, a movable block 14, and a pin 15. The screw 13 is arranged in the front-to-back direction and is rotatably mounted on the side end face of the housing 1. The movable block 14 is slidably mounted on the side end face of the housing 1 in the front-to-back direction, and the screw 13 passes through the movable block 14 and is screwed to the movable block 14. The pin 15 is fixed on the side end face of the movable block 14 away from the housing 1. A through hole 16 is provided on the chain plate 3. The position and specifications of the through hole 16 correspond to the pin 15. The pin 15 is located inside the through hole 16. The handwheel 12 is fixed to the rear end of the screw 13.

[0031] In this embodiment, when the handwheel 12 is turned, the screw 13 rotates accordingly. Since the screw 13 is screwed to the moving block 14, the moving block 14 will slide along the front-back direction on the side end face of the outer casing 1. The pin 15 fixed on the moving block 14 will drive the chain plate 3 to move, adjusting the distance between the chain plate 3 and the drive sprocket 5, thereby realizing the tension adjustment of the chain 4, which can ensure that the chain 4 maintains a suitable tension during operation.

[0032] The front end of the housing 1 is fixed with several anti-slip spikes 17 evenly distributed in a linear array. A D-shaped handle 18 is fixed on the side end face of the housing 1. A battery card slot 19 is opened at the rear end of the housing 1. A contact is fixed inside the battery card slot 19. The specifications of the battery card slot 19 and the contact are adapted to the rechargeable battery pack. The front end of the rechargeable battery pack is detachably snapped into the inside of the battery card slot 19. The contact is electrically connected to the controller.

[0033] In this embodiment, the anti-slip spikes 17 at the front end of the housing 1 are used to increase the friction between the housing and the object being cut, facilitating stable cutting during operation and preventing the object from slipping. The D-shaped handle 18 fixed on the side end face of the housing 1 provides another gripping point, making it convenient to use in different operating scenarios. The battery slot 19 at the rear end of the housing 1 is used to install the battery pack. The battery pack contacts the contacts inside the battery slot 19, and the contacts are electrically connected to the controller, thereby providing power to the various components of the garden electric chainsaw.

[0034] An oil outlet 20 is provided on one side end face of the outer casing 1. The oil outlet 20 is located above the rear end of the chain plate 3 and is connected to the oil outlet end of the automatic oil pump 11.

[0035] In this embodiment, when the automatic oil pump 11 is working, lubricating oil is output from the oil outlet of the automatic oil pump 11 and flows through the oil outlet 20 to the upper rear end of the chain plate 3, thereby lubricating the chain plate 3 and ensuring that the chain 4 runs smoothly on the chain plate 3.

[0036] A push button 21 is slidably provided on the upper end of the grip 8. The push button 21 is slidably provided in the front-back direction. The push button 21 is located above the trigger 9, and a limit block 22 is fixed at the lower end of the push button 21. The lower end of the limit block 22 abuts against the upper end of the trigger 9.

[0037] In this embodiment, when the push button 21 slides along the front-back direction at the upper end of the grip 8, the limiting block 22 fixed at its lower end will move with the push button 21, thereby releasing the limitation on the trigger 9 and preventing accidental activation.

[0038] The working principle of this utility model is as follows: After the operator pushes the push key 21 to release the restriction of the limit block 22 on the trigger 9, and then presses the trigger 9, the controller receives the signal and starts the reduction motor 6. The output shaft of the reduction motor 6 drives the drive sprocket 5 to rotate. The drive sprocket 5 causes the chain 4, which is sleeved on the chain plate 3 and the drive sprocket 5, to rotate at high speed through transmission. By rotating the handwheel 12, the screw 13 drives the moving block 14 to slide along the side end face of the outer shell 1. The pin 15 moves in the through hole 16 of the chain plate 3, pushing the chain plate 3 to slide back and forth, thereby adjusting the tension of the chain 4. The operator holds the handle 8 with one hand and the D-shaped handle 18 with the other. The anti-slip spikes 17 abut against the surface of the object being cut to increase friction. The battery pack supplies power to the controller through the contacts of the battery clip 19 to ensure that all components work properly. Under the control of the controller, the automatic oil pump 11 delivers lubricating oil from the oil outlet 20 to the upper rear end of the chain plate 3 to lubricate the chain plate 3 and the chain 4 and reduce frictional resistance. The protective plate 10 is located above the chain plate 3 to prevent foreign objects from entering the chain area. The limit function of the push key 21 can effectively prevent accidental operation of the chainsaw.

[0039] In summary, by using trigger 9 in conjunction with the controller, the chainsaw can be started and stopped precisely. At the same time, push button 21 and limit block 22 form a protection against accidental activation. Only by pushing push button 21 to release the limit can trigger 9 be operated, which can effectively prevent accidental start-up in non-operational state and greatly reduce the risk of accidental activation.

[0040] By setting the tensioning component 7, the tension of the chain 4 can be quickly adjusted without additional tools, solving the problem of cumbersome adjustment in traditional chainsaws and ensuring that the chain always maintains the appropriate tension.

[0041] With the automatic oil pump 11 working in conjunction with the oil outlet 20, the chain plate 3 and chain 4 can be automatically lubricated. The lubricating oil flows precisely to the rear end of the chain plate 3 through the oil outlet 20, reducing frictional wear between the two, extending the service life of the components, and eliminating the need for manual periodic oiling, thus reducing the operational burden.

[0042] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A gardening electric chainsaw, comprising a housing (1), chain plates (3), a chain (4), a drive sprocket (5), a geared motor (6), a tensioning assembly (7), a handle (8), a trigger (9), a protective plate (10), an automatic oil pump (11), and a controller, characterized in that, A guide plate (2) is detachably provided on one side end face of the outer shell (1). The rear end of the chain plate (3) is slidably disposed between the outer shell (1) and the guide plate (2) in the front-back direction. The geared motor (6) is fixed inside the outer shell (1). The drive sprocket (5) is rotatably disposed between the outer shell (1) and the guide plate (2). The drive sprocket (5) is located behind the chain plate (3). The output shaft of the geared motor (6) is connected to the rotating shaft of the drive sprocket (5). The chain (4) is sleeved on the chain plate (3) and the drive sprocket (5), and the chain (4) is connected to the drive sprocket (5). The tensioning assembly (7) is disposed on the outer shell (1). The position of the tensioning assembly (7) is relative to the outer shell (1). The chain plate (3) is corresponding and the tensioning component (7) is connected to the chain plate (3) in a transmission. The handle (8) is fixed at the upper end of the outer shell (1). The trigger (9) is rotatably set at the lower end of the handle (8). The protective plate (10) is set at the front end of the outer shell (1) and the protective plate (10) is located above the chain plate (3). The automatic oil pump (11) is fixed inside the outer shell (1) and the automatic oil pump (11) is located on the side of the chain plate (3) away from the guide plate (2). The controller is fixed inside the outer shell (1). The geared motor (6), the trigger (9) and the automatic oil pump (11) are all electrically connected to the controller. The rear end of the outer shell (1) is detachably provided with a rechargeable battery pack.

2. An electric chain saw for horticulture according to claim 1, wherein The tensioning assembly (7) includes a handwheel (12), a screw (13), a moving block (14), and a pin (15). The screw (13) is arranged in the front-back direction and is rotatably arranged on the side end face of the outer shell (1). The moving block (14) is slidably arranged on the side end face of the outer shell (1) in the front-back direction, and the screw (13) passes through the moving block (14) and is screwed to the moving block (14). The pin (15) is fixed on the side end face of the moving block (14) away from the outer shell (1). A through hole (16) is provided on the chain plate (3). The position and specifications of the through hole (16) correspond to the pin (15). The pin (15) is located inside the through hole (16). The handwheel (12) is fixed to the rear end of the screw (13).

3. An electric chain saw for horticulture according to claim 2, wherein The front end of the housing (1) is fixed with a number of anti-slip spikes (17) evenly distributed in a linear array. A D-shaped handle (18) is fixed on the side end face of the housing (1). A battery card slot (19) is opened at the rear end of the housing (1). A contact is fixed inside the battery card slot (19). The specifications of the battery card slot (19) and the contact are adapted to the rechargeable battery pack. The front end of the rechargeable battery pack is detachably locked inside the battery card slot (19). The contact is electrically connected to the controller.

4. An electric chain saw for horticulture according to claim 3, wherein An oil outlet (20) is provided on one side end face of the outer shell (1). The oil outlet (20) is located above the rear end of the chain plate (3) and is connected to the oil outlet end of the automatic oil pump (11).

5. An electric chain saw for horticulture according to claim 4, wherein The upper end of the grip (8) is provided with a push button (21). The push button (21) is slidably arranged in the front and back direction. The push button (21) is located above the trigger (9), and the lower end of the push button (21) is fixed with a limit block (22). The lower end of the limit block (22) abuts against the upper end of the trigger (9).

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