Electric chain saw with adjustable saw chain

Abstract

The utility model relates to the technical field of electric chain saws, and discloses an adjustable saw chain electric chain saw which comprises a shell, a cover plate is installed at one end of the shell, a guide plate is installed in the shell, a connecting rod is slidably connected into an arc-shaped groove, a shaft disc is fixedly connected to the surface of the connecting rod, and a saw chain body is installed on the surface of the shaft disc. The other end of the connecting rod is fixedly connected with a driving motor, the bottom of the top of the driving motor is fixedly connected with an extending block, a pressing block is slidably connected into the notch, the bottom of the pressing block is fixedly connected with an L-shaped clamping plate, and a plurality of clamping grooves are formed in the top of an inner cavity of the moving groove. According to the electric chain saw with the adjustable saw chain, by moving a driving motor, the driving motor drives a connecting rod to slide in an arc-shaped groove, then a shaft disc on the surface of the connecting rod and a saw chain body are driven to move, and then an L-shaped clamping plate is driven to be inserted into a clamping groove by moving the position of a pressing block; and therefore, a worker can conveniently adjust the tension degree of the saw chain body.

Description

Technical Field

[0001] The utility model relates to the technical field of electric chain saws, in particular to an electric chain saw with an adjustable saw chain. Background Art

[0002] An electric chain saw is a woodworking power tool that uses an electric motor to drive a chain to rotate, thereby achieving sawing. It is mainly used for processing wood such as logging, wood shaving, or wood cutting.

[0003] A Chinese patent discloses an electric chain saw (authorized announcement number CN217144231U). In this patented technology, by pressing a conversion switch, the first lithium battery pack and the second lithium battery pack can supply power to the electric motor together, or the third lithium battery pack can supply power to the electric motor alone. The third lithium battery pack plays an emergency power supply role.

[0004] Regarding the above and existing related technologies, the inventor believes that the following defects often exist: when the existing electric chain saw is in use, due to the diversity of the working environment and the difference of the working object, it is often necessary to adjust the length of the saw chain to adapt to different cutting requirements. However, the traditional manual adjustment method requires steps such as disassembling the protective cover and loosening / tightening screws, which is cumbersome and inefficient. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is: in the prior art, there are disadvantages that an electric chain saw needs to adapt to diverse working environments and objects, often needs to adjust the length of the saw chain, and the traditional manual adjustment requires disassembling the protective cover and loosening / tightening screws, which is cumbersome and inefficient. For this reason, we propose an electric chain saw with an adjustable saw chain.

[0006] In order to achieve the above purpose, the present application adopts the following technical solution: an electric chain saw with an adjustable saw chain, including a housing, one end of the housing is provided with a cover plate, a guide plate is installed inside the housing, an arc-shaped groove is opened inside the housing, a connecting rod is slidably connected inside the arc-shaped groove, a shaft disc is fixedly connected to the surface of the connecting rod, a saw chain body is installed on the surface of the shaft disc, the other end of the connecting rod is fixedly connected to a drive motor, two moving grooves are opened at the other end of the housing, extension blocks are fixedly connected to both the top and bottom of the drive motor, the extension blocks are slidably connected inside the moving grooves, an activity groove is opened at the other end of the extension blocks, a baffle is fixedly connected inside the activity groove, a notch and an insertion groove are opened at the top of the extension blocks, a pressing block is slidably connected inside the notch, an L-shaped clamping plate is fixedly connected to the bottom of the pressing block, and a plurality of clamping grooves are opened at the top of the inner cavity of the moving groove.

[0007] Preferably, the external shape of the L-shaped clamping plate matches the internal shape of the clamping groove.

[0008] Preferably, a reset spring is fixedly connected to the bottom of the L-shaped clamping plate, and the bottom of the reset spring is fixedly connected to the inside of the movable groove.

[0009] Preferably, limiting grooves are formed on both sides of the inner cavity of the movable groove, and limiting blocks are fixedly connected to both sides of the L-shaped clamping plate.

[0010] Preferably, a guiding groove is formed at the bottom of the inner cavity of the moving groove, and a guiding block is fixedly connected to the bottom of the extending block.

[0011] Preferably, the material of the saw chain body is a steel-chromium alloy material.

[0012] The technical effects and advantages of the present utility model:

[0013] In the present utility model, the staff moves the driving motor, so that the driving motor drives the connecting rod to slide inside the arc-shaped groove, and then drives the disc on the surface of the connecting rod and the saw chain body to move. Subsequently, by moving the position of the pressing block and cooperating with the resilience of the reset spring, the L-shaped clamping plate is driven to insert into the clamping groove, so as to facilitate the staff to adjust the tension of the saw chain body, so that a suitable tension can reduce the resistance of the saw chain body during the cutting process, thereby reducing the energy consumption of the electric saw and improving the overall working efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view structural schematic diagram of the present utility model;

[0015] Figure 2 is the internal structural schematic diagram of the housing of the present utility model;

[0016] Figure 3 is the partial schematic diagram of the driving motor of the present utility model;

[0017] Figure 4 is the split structural schematic diagram of the housing of the present utility model;

[0018] Figure 5 is the sectional view of the fixing structure of the present utility model;

[0019] Figure 6 is the sectional view of the limiting structure of the present utility model.

[0020] Legend: 1. Housing; 2. Cover plate; 3. Clamping groove; 4. Guide plate; 5. Arc-shaped groove; 6. Connecting rod; 7. Disc; 8. Saw chain body; 9. Driving motor; 10. Moving groove; 11. Extending block; 12. Movable groove; 13. Baffle; 14. Notch; 15. Insertion groove; 16. L-shaped clamping plate; 17. Pressing block; 18. Reset spring; 19. Limiting groove; 20. Limiting block; 21. Guiding groove; 22. Guiding block. DETAILED DESCRIPTION OF THE INVENTION

[0021] The present utility model will now be further described in detail with reference to the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0022] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 as shown, the present utility model provides a technical solution: an adjustable saw chain electric chain saw, which includes a housing 1, a cover plate 2 is installed at one end of the housing 1, a guide plate 4 is installed inside the housing 1, an arc-shaped groove 5 is opened inside the housing 1, a connecting rod 6 is slidably connected inside the arc-shaped groove 5, a shaft disc 7 is fixedly connected to the surface of the connecting rod 6, a saw chain body 8 is installed on the surface of the shaft disc 7, the other end of the connecting rod 6 is fixedly connected to a driving motor 9, two moving grooves 10 are opened at the other end of the housing 1, extension blocks 11 are fixedly connected to both the top and bottom of the driving motor 9, the extension blocks 11 are slidably connected inside the moving grooves 10, an activity groove 12 is opened at the other end of the extension blocks 11, a baffle 13 is fixedly connected inside the activity groove 12, a notch 14 and an insertion groove 15 are opened at the top of the extension block 11, a pressing block 17 is slidably connected inside the notch 14, an L-shaped clamping plate 16 is fixedly connected to the bottom of the pressing block 17, a plurality of clamping grooves 3 are opened at the top of the inner cavity of the moving groove 10, a return spring 18 is fixedly connected to the bottom of the L-shaped clamping plate 16, and the bottom of the return spring 18 is fixedly connected to the inside of the activity groove 12. The staff moves the driving motor 9, so that the driving motor 9 drives the connecting rod 6 to slide inside the arc-shaped groove 5, and then drives the shaft disc 7 and the saw chain body 8 on the surface of the connecting rod 6 to move. Subsequently, by moving the position of the pressing block 17 and cooperating with the resilience of the return spring 18 to drive the L-shaped clamping plate 16 to insert into the clamping groove 3, it is convenient for the staff to adjust the tension of the saw chain body 8, so as to achieve a suitable tension, which can reduce the resistance of the saw chain body 8 during the cutting process, thereby reducing the energy consumption of the electric chain saw and improving the overall working efficiency.

[0023] Referring to Figure 4 and Figure 5 as shown, in this embodiment: the external shape of the L-shaped clamping plate 16 matches the internal shape of the clamping groove 3. Due to the close fit between the L-shaped clamping plate 16 and the clamping groove 3, the L-shaped clamping plate 16 can be more stable when inserted into the inside of the clamping groove 3 and will not shake.

[0024] Referring to Figure 6As shown, in this embodiment: limiting grooves 19 are provided on both sides of the inner cavity of the movable groove 12, and limiting blocks 20 are fixedly connected to both sides of the L-shaped clamping plate 16. Through the cooperation of the limiting groove 19 and the limiting block 20, the movement track of the L-shaped clamping plate 16 in the movable groove 12 is more stable.

[0025] Refer to Figure 4 and Figure 5 As shown, in this embodiment: a guiding groove 21 is provided at the bottom of the inner cavity of the moving groove 10, and a guiding block 22 is fixedly connected to the bottom of the extending block 11. The cooperation of the guiding groove 21 and the guiding block 22 makes the movement of the extending block 11 and the driving motor 9 in the moving groove 10 more stable and precise. When the position of the extending block 11 needs to be adjusted, the user only needs to gently push or pull the extending block 11, and the guiding block 22 will move along the path of the guiding groove 21, ensuring smoothness and accuracy during the movement process.

[0026] Refer to Figure 1 As shown, in this embodiment: the material of the saw chain body 8 is steel-chromium alloy. The toughness and wear resistance of the steel-chromium alloy ensure that the saw chain body 8 is not easily broken or worn during long-term and high-intensity use. For industries that require frequent and continuous sawing operations, this is undoubtedly a huge advantage. It can not only improve the operation efficiency, reduce the frequency of saw chain replacement, but also reduce the maintenance cost and enhance the overall economic benefit.

[0027] Working principle: The staff moves the driving motor 9, causing the driving motor 9 to drive the connecting rod 6 to slide inside the arc-shaped groove 5, thereby driving the axle disc 7 on the surface of the connecting rod 6 and the saw chain body 8 to move. Subsequently, by moving the position of the pressing block 17 and cooperating with the resilience of the return spring 18, the L-shaped clamping plate 16 is driven to insert into the clamping groove 3, which facilitates the staff to adjust the tension of the saw chain body 8, so as to achieve an appropriate tension that can reduce the resistance of the saw chain body 8 during the cutting process, thereby reducing the energy consumption of the electric chain saw and improving the overall working efficiency. Due to the tight fit between the L-shaped clamping plate 16 and the clamping groove 3, the L-shaped clamping plate 16 can be more stable when inserted into the inside of the clamping groove 3 without shaking. Through the combined use of the limiting groove 19 and the limiting block 20, the moving track of the L-shaped clamping plate 16 in the movable groove 12 is more stable. The combined setting of the guiding groove 21 and the guiding block 22 makes the movement of the extension block 11 and the driving motor 9 in the moving groove 10 more stable and accurate. When it is necessary to adjust the position of the extension block 11, the user only needs to gently push or pull the extension block 11, and the guiding block 22 will move along the path of the guiding groove 21, ensuring smoothness and accuracy during the movement process. The toughness and wear resistance of the steel-chromium alloy ensure that the saw chain body 8 is not easily broken or worn during long-term and high-intensity use. For industries that require frequent and continuous sawing operations, this is undoubtedly a huge advantage. It can not only improve the operation efficiency, reduce the frequency of replacing the saw chain, but also reduce the maintenance cost and enhance the overall economic benefits.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric chain saw with an adjustable saw chain, comprising a housing (1), characterized in that: A cover plate (2) is installed at one end of the housing (1), a guide plate (4) is installed inside the housing (1), an arc-shaped groove (5) is provided inside the housing (1), a connecting rod (6) is slidably connected inside the arc-shaped groove (5), a shaft disc (7) is fixedly connected to the surface of the connecting rod (6), a saw chain body (8) is installed on the surface of the shaft disc (7), the other end of the connecting rod (6) is fixedly connected to a driving motor (9), the other end of the housing (1) is provided with two movable grooves (10), the top and bottom of the driving motor (9) are both An extension block (11) is fixedly connected, the extension block (11) is slidably connected to the inside of the movable groove (10), a movable groove (12) is provided at the other end of the extension block (11), a baffle (13) is fixedly connected to the inside of the movable groove (12), a notch (14) and a through-slot (15) are provided at the top of the extension block (11), a pressing block (17) is slidably connected to the inside of the notch (14), an L-shaped clamping plate (16) is fixedly connected to the bottom of the pressing block (17), and a plurality of clamping slots (3) are provided at the top of the inner cavity of the movable groove (10).

2. The electric chain saw with adjustable saw chain according to claim 1, characterized in that: The outer shape of the L-shaped clamping plate (16) matches the inner shape of the clamping slot (3).

3. The electric chain saw with adjustable saw chain according to claim 1, characterized in that: A return spring (18) is fixedly connected to the bottom of the L-shaped clamping plate (16), and the bottom of the return spring (18) is fixedly connected to the inside of the movable groove (12).

4. The electric chain saw with adjustable saw chain according to claim 1, characterized in that: Limiting grooves (19) are provided on both sides of the inner cavity of the movable groove (12), and limiting blocks (20) are fixedly connected to both sides of the L-shaped clamping plate (16).

5. The electric chain saw with adjustable saw chain according to claim 1, characterized in that: A guide groove (21) is provided at the bottom of the inner cavity of the movable groove (10), and a guide block (22) is fixedly connected to the bottom of the extension block (11).

6. The electric chain saw with adjustable saw chain according to claim 1, characterized in that: The saw chain body (8) is made of steel-chromium alloy.

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