An adjustable multi-layer cutting chainsaw

Abstract

This invention relates to an adjustable multi-layer cutting chainsaw. It solves the problems of existing chainsaws requiring multiple cuts and difficulty in controlling the cutting length. It includes a chainsaw base, with a main chain guide plate at one end driven by an active drive motor. Symmetrically arranged on both sides of the main chain guide plate are secondary chain guide plates, connected to the main and secondary plates via an adjustable threaded sleeve assembly. The chainsaw base contains a linkage drive mechanism connected to the adjustable threaded sleeve assembly, capable of driving the assembly to adjust the distance between the secondary and main chain guide plates. The chainsaw base also includes a rotary height adjustment assembly for adjusting the height of the secondary chain guide plates. The advantages of this invention are: precise and flexible control of the distance between the secondary and main chain guide plates, stable control of the secondary chain guide plate's lifting height, enabling multi-layer synchronous cutting operations and greatly improving the efficiency of log cutting.

Description

Technical Field

[0001] This invention relates to the field of sawing equipment technology, and specifically to an adjustable multi-layer cutting chainsaw. Background Technology

[0002] In outdoor landscaping operations, chainsaws are used to cut logs. Currently, the chainsaws available on the market work by using a power unit (including gasoline engines and electric motors) to drive a transmission mechanism. The transmission mechanism drives a drive shaft, which in turn drives a chain gear. The chain gear drives the saw chain, causing it to slide at high speed on a guide rod. During the log cutting process, it is difficult to control the cutting distance, which easily leads to wood waste and low resource utilization. In addition, log cutting requires multiple cuts, and it is difficult to control the cutting length, which not only delays the cutting efficiency but also affects the cutting accuracy.

[0003] To address the shortcomings of existing technologies, people have conducted long-term explorations and proposed various solutions. For example, Chinese patent literature discloses a chainsaw with adjustable cutting width [CN201921760334.3], which includes a chainsaw operating table, a chainsaw guide plate and a chainsaw blade wound around the guide plate, a cutting distance measuring component that can reciprocate in a straight line on the operating table, the cutting distance measuring component being positioned corresponding to the chainsaw guide plate, and a distance measuring display block corresponding to the position of the cutting distance measuring component inside the operating table, with several cutting distance indicator bars on the display block. This utility model, by setting a sawing baffle and cutting distance indicator bars, allows the sawing baffle to abut against the end of the log during the cutting process. The user can cut the log to the required width by following the markings on the cutting distance indicator bars. The operation is simple and convenient, the cutting accuracy is good, wood waste is reduced, and resource utilization is improved.

[0004] The above solution has solved to some extent the problem of difficulty in controlling the cutting distance and resulting in wood waste when using chainsaws in the existing technology. However, the solution still has many shortcomings. For example, it requires multiple cuts and it is difficult to control the cutting length, which not only delays the cutting efficiency but also affects the cutting accuracy. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned technical problems by providing an adjustable multi-layer cutting chainsaw that offers flexible cutting and high cutting precision.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable multi-layer cutting chainsaw, including a chainsaw base, a main chain guide plate at one end of the chainsaw base that drives the chain on it via an active drive motor, secondary chain guide plates symmetrically arranged on both sides of the main chain guide plate, and the main chain guide plate and the secondary chain guide plates are connected by an adjustable screw sleeve assembly, a linkage drive mechanism connected to the adjustable screw sleeve assembly and capable of driving the adjustable screw sleeve assembly to move and thereby adjust the distance between the secondary chain guide plates and the main chain guide plate is provided inside the chainsaw base, and a rotary height adjustment assembly for adjusting the lifting height of the secondary chain guide plates is also provided inside the chainsaw base.

[0007] In the aforementioned adjustable multi-layer cutting chainsaw, the adjustable screw sleeve assembly includes a lifting bearing sleeve. The main guide chain plate is provided with a strip-shaped lifting groove into which the lifting bearing sleeve can be inserted. Both ends of the lifting bearing sleeve are rotatably connected to a linkage rotating rod. One end of the linkage rotating rod has a passive rotating seat connected to the linkage drive mechanism, and the other end has a limiting part for limiting the movement stroke of the guide chain subplate. The limiting part and the passive rotating seat have a threaded connection.

[0008] In the aforementioned adjustable multi-layer cutting chainsaw, the outer ring of the lifting bearing sleeve is slidably lifted and lowered within a strip-shaped lifting groove, and the inner wall of the strip-shaped lifting groove forms a lifting limit for the outer ring of the lifting bearing sleeve. The passive rotating seats located on both sides are connected by a linkage rod located within the inner ring of the lifting bearing sleeve.

[0009] In the aforementioned adjustable multi-layer cutting chainsaw, a linkage sleeve is threadedly connected to the threaded connection part, and the guide chain sub-plate is positioned on the linkage sleeve. The two ends of the linkage sleeve are respectively limited in their active stroke by a passive rotating seat and a limiting part. The passive rotating seat has an inner rotating positioning groove at one end facing the lifting bearing sleeve, and the two ends of the lifting bearing sleeve are respectively provided with plug-in snap-fit ​​parts corresponding to the inner rotating positioning grooves on the passive rotating seats on both sides. The plug-in snap-fit ​​parts are connected to the inner rotating positioning grooves.

[0010] In the aforementioned adjustable multi-layer cutting chainsaw, the linkage drive mechanism includes a rotary drive motor installed in the chainsaw base. A linkage chain is installed on the output shaft of the rotary drive motor. One end of the linkage chain away from the output shaft of the rotary drive motor is connected to a passive rotating seat installed on one side of the rear end of the guide chain main board. A synchronous chain is installed on the passive rotating seat on the other side of the rear end of the guide chain main board. One end of the synchronous chain away from the passive rotating seat is connected to a passive rotating seat installed on the same side of the front end of the guide chain main board.

[0011] In the aforementioned adjustable multi-layer cutting chainsaw, the rotary height adjustment component includes a rotary adjustment rod disposed on the chainsaw base. One end of the rotary adjustment rod is disposed on the outer wall of the chainsaw base and connected to a rotary adjustment knob. The rotary adjustment rod is disposed inside the chainsaw base and is provided with rotary connecting gear shafts that are respectively connected to the corresponding guide chain sub-plates. The guide chain sub-plates are provided with lifting clearance grooves corresponding to the rotary connecting gear shafts.

[0012] In the aforementioned adjustable multi-layer cutting chainsaw, lifting guide gears are symmetrically arranged on the rotating adjustment rod and on the inner wall of the chainsaw base, and the inner wall of the chainsaw base is provided with lifting guide tooth grooves corresponding to the lifting guide gears. The lifting guide gears are set in the corresponding lifting guide tooth grooves, and the outer wall of the chainsaw base is provided with adjustment knob clearance grooves corresponding to the lifting guide tooth grooves and allowing the rotating adjustment knobs to move synchronously.

[0013] In the aforementioned adjustable multi-layer cutting chainsaw, the guide plate has a secondary plate sprocket at one end within the chainsaw base, and this secondary plate sprocket is driven by a corresponding secondary plate sprocket motor.

[0014] In the aforementioned adjustable multi-layer cutting chainsaw, a synchronous lifting groove is provided on the inner wall of the chainsaw base. A synchronous lifting gear is rotatably provided at the end of the secondary plate sprocket motor away from the secondary plate sprocket, and the synchronous lifting gear is rotatably and liftingly positioned within the synchronous lifting groove.

[0015] In the aforementioned adjustable multi-layer cutting chainsaw, a main chain guide is provided with a main chain sprocket at one end of the chainsaw base. A support shaft passes through the shaft of the main chain sprocket. A linkage sleeve is provided between the outer circumferential wall of the support shaft and the main chain sprocket. A driven gear is provided on the outer circumferential wall of the linkage sleeve and on one side of the main chain sprocket. An active drive gear that meshes with the driven gear is provided at the output end of the active drive motor. A bearing is provided between the linkage sleeve and the support shaft. Both ends of the support shaft are positioned on the chainsaw base by fixing nuts.

[0016] Compared with existing technologies, this invention has the following technical advantages: it can accurately and flexibly adjust the distance between the guide chain sub-plate and the guide chain main plate, and can stably control the lifting height of the guide chain sub-plate, enabling multi-layer synchronous cutting operations without repeated cutting, thus greatly improving the efficiency of log cutting operations; the overall structure effectively avoids processing size deviations through gear meshing precise adjustment, synchronous transmission and multiple limit designs, improving log cutting accuracy and operational stability, and can be adapted to standardized cutting and processing scenarios of various logs of different specifications, making it more versatile and practical. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2This is a partial structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the adjustable screw sleeve assembly structure in this invention;

[0020] Figure 4 This is an exploded view of the adjustable screw sleeve assembly in this invention;

[0021] Figure 5 This is a schematic diagram of the main chain conductor structure in this invention;

[0022] Figure 6 This is a schematic diagram of the chain guide plate structure in this invention;

[0023] Figure 7 This is a schematic diagram of the rotating adjustment rod structure in this invention.

[0024] In the diagram: 1. Chainsaw base; 2. Active drive motor; 3. Adjustable threaded sleeve assembly; 31. Lifting bearing sleeve; 32. Strip lifting groove; 33. Linkage rotating rod; 33. Passive rotating seat; 331. Limiting part; 332. Threaded connection part; 333. Inner rotation positioning groove; 334. Linkage connecting rod; 34. Linkage sleeve; 35. Guide chain secondary plate; 4. Secondary plate sprocket; 41. Secondary plate sprocket motor; 42. Synchronous lifting groove; 43. Synchronous lifting gear; 44. Guide chain main plate; 5. Main plate sprocket; 51. Support shaft; 52. Linkage bushing; 53. Passive gear; 54. Linkage drive mechanism; 6. Rotation drive motor; 61. Linkage chain belt; 62. Synchronous chain belt; 63. Rotational height adjustment assembly; 7. Rotational adjustment rod; 71. Rotational adjustment knob; 72. Rotational connecting gear shaft; 73. Lifting clearance groove; 74. Lifting guide gear; 75. Lifting guide groove; 76. Adjustment knob clearance groove; 77. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1-7 As shown, an adjustable multi-layer cutting chainsaw includes a chainsaw base 1. One end of the chainsaw base 1 is provided with a main chain guide plate 5 that drives the chain on it via an active drive motor 2. Symmetrical main chain guide plates 4 are arranged on both sides of the main chain guide plate 5, and the main chain guide plate 5 and the main chain guide plates 4 are connected by an adjustable threaded sleeve assembly 3. A linkage drive mechanism 6 is provided inside the chainsaw base 1, which is connected to the adjustable threaded sleeve assembly 3 and can drive the adjustable threaded sleeve assembly 3 to move, thereby adjusting the distance between the main chain guide plates 4 and the main chain guide plate 5. A rotary height adjustment assembly 7 is also provided inside the chainsaw base 1 for adjusting the lifting height of the main chain guide plates 4.

[0027] The adjustable screw sleeve assembly 3 includes a lifting bearing sleeve 31. The guide chain main plate 5 is provided with a strip-shaped lifting groove 32 into which the lifting bearing sleeve 31 can be inserted. The lifting bearing sleeve 31 is rotatably connected to a linkage rotating rod 33 at both ends. One end of the linkage rotating rod 33 has a passive rotating seat 331 connected to the linkage drive mechanism 6, and the other end has a limiting part 332 for limiting the movement stroke of the guide chain subplate 4. The limiting part 332 and the passive rotating seat 331 have a threaded connection part 333.

[0028] As can be seen, the outer ring of the lifting bearing sleeve 31 is slidably lifted and lowered within the strip-shaped lifting groove 32, and the inner wall of the strip-shaped lifting groove 32 forms a lifting limit for the outer ring of the lifting bearing sleeve 31. The passive rotating seats 331 located on both sides are connected by a linkage rod 34 located within the inner ring of the lifting bearing sleeve 31.

[0029] Obviously, a linkage sleeve 35 is threadedly connected to the threaded connection part 333, and the guide chain sub-plate 4 is positioned on the linkage sleeve 35. The two ends of the linkage sleeve 35 are respectively limited in their movement stroke by the passive rotating seat 331 and the limiting part 332. The passive rotating seat 331 has an inner rotating positioning groove 334 at one end facing the lifting bearing sleeve 31, and the two ends of the lifting bearing sleeve 31 are respectively provided with plug-in snap-fit ​​parts 311 corresponding to the inner rotating positioning grooves 334 on the two passive rotating seats 331. The plug-in snap-fit ​​parts 311 are connected to the inner rotating positioning grooves 334.

[0030] Furthermore, the linkage drive mechanism 6 includes a rotary drive motor 61 installed in the chainsaw base 1. A linkage chain belt 62 is installed on the output shaft of the rotary drive motor 61. One end of the linkage chain belt 62 away from the output shaft of the rotary drive motor 61 is connected to a passive rotating seat 331 installed on one side of the rear end of the guide chain main board 5. A synchronous chain belt 63 is installed on the passive rotating seat 331 on the other side of the rear end of the guide chain main board 5. One end of the synchronous chain belt 63 away from the passive rotating seat 331 is connected to a passive rotating seat 331 installed on the same side of the front end of the guide chain main board 5.

[0031] The output shaft of the drive motor 61 rotates, which drives the passive rotating seat 331 on one side of the rear end of the guide chain main plate 5 to rotate synchronously through the linkage chain belt 62. Since the passive rotating seats 331 on both sides of the rear end of the guide chain main plate 5 belong to the same linkage rotating rod 33, and the linkage rotating rod 33 is rotatably positioned in the inner ring of the lifting bearing sleeve 31 of the strip lifting groove 32, when the linkage rotating rod 33 rotates, the threaded connection part 333 on it rotates synchronously, and the linkage sleeve 35 threaded to the threaded connection part 333 rotates passively. Therefore, the guide chain sub-plate 4 connected to the linkage sleeve 35 moves passively along the threaded connection part 333. And due to the setting of the synchronous chain belt 63, the linkage rotating rod 33 located at the front end of the guide chain main plate 5 rotates synchronously, thereby realizing the synchronous adjustment of the front end and rear end of the guide chain sub-plate 4, and thus achieving the purpose of adjusting the cutting distance between the guide chain main plate 5 and the guide chain sub-plate 4.

[0032] Furthermore, the rotary height adjustment assembly 7 includes a rotary adjustment rod 71 disposed on the chainsaw base 1. One end of the rotary adjustment rod 71 is disposed on the outer wall of the chainsaw base 1 and connected to a rotary adjustment knob 72. The rotary adjustment rod 71 is disposed inside the chainsaw base 1 and is provided with a rotary connecting gear shaft 73 that is respectively connected to the corresponding guide chain sub-plate 4. The guide chain sub-plate 4 is provided with a lifting clearance groove 74 corresponding to the rotary connecting gear shaft 73.

[0033] Specifically, a lifting guide gear 75 is symmetrically arranged on the rotating adjustment rod 71 and located on the inner wall of the chainsaw base 1, and a lifting guide tooth groove 76 corresponding to the lifting guide gear 75 is provided on the inner wall of the chainsaw base 1. The lifting guide gear 75 is located in the corresponding lifting guide tooth groove 76. An adjustment knob clearance groove 77 corresponding to the lifting guide tooth groove 76 is provided on the outer wall of the chainsaw base 1 and is provided for the synchronous movement of the rotating adjustment knob 72.

[0034] When the lifting height position of the guide chain plate 4 is required, turn the rotary adjustment knob 72, and the lifting guide gear 75 moves up and down in the corresponding lifting guide tooth groove 76, so that the rotary adjustment rod 71 moves up and down synchronously. Since the rotary connecting gear shaft 73 is set in the lifting clearance tooth groove 74, the pressure of the rotary connecting gear shaft 73 drives the corresponding guide chain plate 4 to move up and down.

[0035] When the guide chain subplate 4 needs to rise, the rotary adjustment knob 72 needs to be turned to move the rotary connecting gear shaft 73 to the top of the lifting guide gear groove 76 first, and then continue to move. The upward pressure of the rotary connecting gear shaft 73 drives the guide chain subplate 4 to rise. When the guide chain subplate 4 needs to fall, the rotary adjustment knob 72 needs to be turned to move the rotary connecting gear shaft 73 to the bottom of the lifting guide gear groove 76 first, and then continue to move. The downward pressure of the rotary connecting gear shaft 73 drives the guide chain subplate 4 to fall. It should be noted that the stroke of the adjustment knob clearance groove 77 and the lifting guide gear groove 76 is twice the stroke of the lifting clearance groove 74.

[0036] The lifting and lowering clearance tooth groove 74, in conjunction with the rotating connecting tooth shaft 73, can stably raise and lower the guide chain subplate 4, and after the height position is adjusted, it can also form an effective meshing and positioning.

[0037] Secondly, when the guide chain plate 4 moves up and down, the strip lifting groove 32 provides lifting clearance stroke, and the linkage chain 62 is elastic. When the adjustable screw sleeve assembly 3 moves up and down with the guide chain plate 4, the tensile effect on the linkage chain 62 is negligible.

[0038] More specifically, the chain guide plate 4 has a secondary plate sprocket 41 at one end inside the chainsaw base 1, and the secondary plate sprocket 41 is driven by a corresponding secondary plate sprocket motor 42.

[0039] In detail, the inner wall of the chainsaw base 1 is provided with a synchronous lifting groove 43, and the end of the auxiliary plate sprocket motor 42 away from the auxiliary plate sprocket 41 is provided with a synchronous lifting gear 44, which is rotated and lifted within the synchronous lifting groove 43.

[0040] This configuration allows the secondary plate sprocket motor 42 to rise and fall synchronously with the corresponding guide chain secondary plate 4.

[0041] Preferably, the main chain guide plate 5 is provided with a main chain sprocket 51 at one end of the chainsaw base 1. A support shaft 52 passes through the axis of the main chain sprocket 51. A linkage sleeve 53 is provided between the outer circumferential wall of the support shaft 52 and the main chain sprocket 51. A driven gear 54 is provided on the outer circumferential wall of the linkage sleeve 53 and on one side of the main chain sprocket 51. An active drive gear 56 that meshes with the driven gear 54 is provided at the output end of the active drive motor 2. A bearing is provided between the linkage sleeve 53 and the support shaft 52. Both ends of the support shaft 52 are positioned on the chainsaw base 1 by fixing nuts.

[0042] In summary, the principle of this embodiment is as follows: the main drive motor 2, in conjunction with the gear meshing structure, drives the main sprocket 51 of the main guide chain 5 to rotate, thereby realizing the basic cutting transmission of the main chain. The main guide chain sub-plates 4, which are symmetrically assembled on both sides of the main guide chain 5, drive the sub-plate sprocket 41 to work through the independent sub-plate sprocket motor 42. The sub-plate sprocket motor 42 can move synchronously with the main guide chain sub-plate 4 along the synchronous lifting groove 43 of the chainsaw base 1 with the help of the synchronous lifting gear 44.

[0043] The cutting distance is adjusted by the linkage drive mechanism 6. Specifically, the rotation drive motor 61 drives the linkage chain 62 and the synchronous chain 63 to rotate synchronously, which drives the passive rotating seats 331 at both ends of the guide chain main board 5 to rotate. This causes the threaded connection part 333 to drive the linkage sleeve 35 to move horizontally, thereby causing the guide chain sub-plate 4 positioned on the linkage sleeve 35 to move. At the same time, the lifting bearing sleeve 31 slides and is limited along the strip lifting groove 32 of the guide chain main board 5. It also works with the linkage rod 34 and the plug-in snap-fit ​​part 311 to achieve synchronous adjustment of the front and rear ends, and accurately control the cutting distance between the guide chain main board 5 and the guide chain sub-plate 4.

[0044] Height adjustment is achieved through a rotary height adjustment component 7. Specifically, manually turning the rotary adjustment knob 72 on the outside of the chainsaw base 1 causes the rotary adjustment rod 71 and the lifting guide gear 75 to slide up and down along the lifting guide tooth groove 76. The transmission is achieved by the meshing of the rotary connecting gear shaft 73 and the lifting clearance tooth groove 74 of the guide chain sub-plate 4, which stably drives the guide chain sub-plate 4 to rise and fall. The stroke of the adjustment knob clearance groove 77 and the lifting guide tooth groove 76 is twice the stroke of the lifting clearance tooth groove 74, ensuring a sufficient range of height adjustment. After the height adjustment is completed, stable positioning is achieved by the meshing of the tooth grooves. Finally, through precise bidirectional adjustment of the spacing and height, combined with the multi-layer guide chain plate synchronous cutting structure, the standardized cutting operation of logs is completed, thereby improving cutting efficiency.

[0045] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention 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 the invention or exceeding the scope defined by the appended claims.

[0046] Although this article uses a lot of terms such as chainsaw base 1, active drive motor 2, adjustable screw sleeve assembly 3, lifting bearing sleeve 31, strip lifting groove 32, linkage rotating rod 33, passive rotating seat 331, limiting part 332, threaded connection part 333, inner rotation positioning groove 334, linkage connecting rod 34, linkage sleeve 35, guide chain secondary plate 4, secondary plate sprocket 41, secondary plate sprocket motor 42, synchronous lifting groove 43, synchronous lifting gear 44, guide chain main plate 5, main plate sprocket 51, support shaft rod 52, linkage bushing 53, passive gear 54, linkage drive mechanism 6, rotation drive motor 61, linkage chain belt 62, synchronous chain belt 63, rotational height adjustment assembly 7, rotational adjustment rod 71, rotational adjustment knob 72, rotational connecting gear shaft 73, lifting clearance groove 74, lifting guide gear 75, lifting guide groove 76, adjustment knob clearance groove 77, the possibility of using other terms cannot be ruled out. The use of these terms is merely for the convenience of describing and explaining the nature of the invention; interpreting them as any additional limitation would be contrary to the spirit of the invention.

Claims

1. An adjustable multi-layer cutting chainsaw, comprising a chainsaw base (1), wherein one end of the chainsaw base (1) is provided with a chain guide plate (5) that drives the chain on it via an active drive motor (2), characterized in that, The main chain guide plate (5) is symmetrically provided with secondary chain guide plates (4) on both sides, and the main chain guide plate (5) and the secondary chain guide plates (4) are connected by an adjustable screw sleeve assembly (3). The chainsaw base (1) is provided with a linkage drive mechanism (6) that is connected to the adjustable screw sleeve assembly (3) and can drive the adjustable screw sleeve assembly (3) to move, thereby adjusting the distance between the secondary chain guide plate (4) and the main chain guide plate (5). The chainsaw base (1) is also provided with a rotary height adjustment assembly (7) for adjusting the lifting height of the secondary chain guide plate (4).

2. The adjustable multi-layer cutting chainsaw according to claim 1, characterized in that, The adjustable screw sleeve assembly (3) includes a lifting bearing sleeve (31). The guide chain main plate (5) is provided with a strip lifting groove (32) into which the lifting bearing sleeve (31) can be inserted. The lifting bearing sleeve (31) is rotatably connected to a linkage rotating rod (33) at both ends. One end of the linkage rotating rod (33) has a passive rotating seat (331) connected to the linkage drive mechanism (6), and the other end has a limiting part (332) for limiting the movement stroke of the guide chain subplate (4). The limiting part (332) and the passive rotating seat (331) have a threaded connection part (333).

3. The adjustable multi-layer cutting chainsaw according to claim 2, characterized in that, The outer ring of the lifting bearing sleeve (31) is slidably lifted and lowered in the strip lifting groove (32), and the inner wall of the strip lifting groove (32) forms a lifting limit on the outer ring of the lifting bearing sleeve (31), and the passive rotating seats (331) on both sides are connected by a linkage rod (34) provided in the inner ring of the lifting bearing sleeve (31).

4. The adjustable multi-layer cutting chainsaw according to claim 2, characterized in that, The threaded connection part (333) is threadedly connected to a linkage sleeve (35), and the guide chain sub-plate (4) is positioned on the linkage sleeve (35). The two ends of the linkage sleeve (35) are respectively limited in their movement stroke by a passive rotating seat (331) and a limiting part (332). The passive rotating seat (331) has an inner rotating positioning groove (334) at one end facing the lifting bearing sleeve (31), and the two ends of the lifting bearing sleeve (31) are respectively provided with plug-in snap-fit ​​parts (311) corresponding to the inner rotating positioning grooves (334) on the two passive rotating seats (331). The plug-in snap-fit ​​parts (311) are connected to the inner rotating positioning grooves (334).

5. An adjustable multi-layer cutting chainsaw according to claim 4, characterized in that, The linkage drive mechanism (6) includes a rotary drive motor (61) installed in the chainsaw base (1). A linkage chain belt (62) is installed on the output shaft of the rotary drive motor (61). One end of the linkage chain belt (62) away from the output shaft of the rotary drive motor (61) is connected to a passive rotating seat (331) installed on one side of the rear end of the guide chain main board (5). A synchronous chain belt (63) is installed on the passive rotating seat (331) on the other side of the rear end of the guide chain main board (5). One end of the synchronous chain belt (63) away from the passive rotating seat (331) is connected to a passive rotating seat (331) on the same side of the front end of the guide chain main board (5).

6. The adjustable multi-layer cutting chainsaw according to claim 1, characterized in that, The rotating height adjustment assembly (7) includes a rotating adjustment rod (71) set on the chainsaw base (1). One end of the rotating adjustment rod (71) is set on the outer wall of the chainsaw base (1) and connected to a rotating adjustment knob (72). The rotating adjustment rod (71) is located inside the chainsaw base (1) and is provided with a rotating connecting gear shaft (73) that is connected to the corresponding guide chain sub-plate (4). The guide chain sub-plate (4) is provided with a lifting clearance groove (74) corresponding to the rotating connecting gear shaft (73).

7. An adjustable multi-layer cutting chainsaw according to claim 6, characterized in that, The rotating adjustment rod (71) is symmetrically provided with lifting guide gears (75) on the inner wall of the chainsaw base (1), and the inner wall of the chainsaw base (1) is provided with lifting guide tooth grooves (76) corresponding to the lifting guide gears (75). The lifting guide gears (75) are located in the corresponding lifting guide tooth grooves (76). The outer wall of the chainsaw base (1) is provided with adjustment knob clearance grooves (77) corresponding to the lifting guide tooth grooves (76) and allowing the rotating adjustment knobs (72) to move synchronously.

8. An adjustable multi-layer cutting chainsaw according to claim 1, characterized in that, The chain guide plate (4) is located inside the chainsaw base (1) and has a chain guide sprocket (41) at one end, which is driven by a corresponding chain guide sprocket motor (42).

9. An adjustable multi-layer cutting chainsaw according to claim 1, characterized in that, The inner wall of the chainsaw base (1) is provided with a synchronous lifting groove (43). The end of the auxiliary plate sprocket motor (42) away from the auxiliary plate sprocket (41) is provided with a synchronous lifting gear (44), and the synchronous lifting gear (44) is rotated and lifted in the synchronous lifting groove (43).

10. An adjustable multi-layer cutting chainsaw according to claim 1, characterized in that, The main chain guide (5) is provided with a main chain sprocket (51) at one end of the chainsaw base (1). A support shaft (52) is provided through the shaft of the main chain sprocket (51). A linkage sleeve (53) is provided between the outer circumferential wall of the support shaft (52) and the main chain sprocket (51). A driven gear (54) is provided on the outer circumferential wall of the linkage sleeve (53) and on one side of the main chain sprocket (51). An active drive gear (56) that meshes with the driven gear (54) is provided at the output end of the active drive motor (2). A bearing is provided between the linkage sleeve (53) and the support shaft (52). The two ends of the support shaft (52) are positioned on the chainsaw base (1) by fixing nuts.

Images