A switching mechanism for switching a chain saw cutting mode

Abstract

The utility model discloses a kind of switching mechanism for switching chain saw sawing mode, including chain saw main body, operating handle assembly movably installed on chain saw main body, rotating structure and self-locking structure are equipped on the operating handle assembly and chain saw main body, operating handle assembly can be rotated on chain saw main body by rotating structure, self-locking structure can be self-locked fixed to operating handle assembly, so that operating handle assembly is fixed angle of rotation. The utility model is set by operating handle assembly, cooperate with rotating structure, so that rotating handle can be rotated on chain saw main body and fixed in specified position by self-locking structure, so that the relative change of operating handle assembly position of chain saw and chain saw main body occurs, so that the relative position of saw chain in chain saw and operator is changed, so that entire operator can keep same holding posture to complete logging process, reduce the complexity of operator felling, reduce operation difficulty, and improve work efficiency, reduce security risk.

Description

Technical Field

[0001] This utility model relates to the field of sawing tool technology, and specifically to a switching mechanism for switching chainsaw cutting modes. Background Technology

[0002] Logging refers to the process of felling trees and processing them into timber. Logging is an important part of forestry production and usually involves the following steps: tree selection, felling, pruning, cutting, and transportation.

[0003] In existing technologies, chainsaws are generally used to complete the logging process, including felling, debranching, and cutting. However, the operator's working posture needs to change frequently during these three steps. For example, in the felling step, the chainsaw needs to move laterally to cut, while in the cutting step, it needs to move vertically. In addition, the debranching process requires even more complex movements. Therefore, the operator needs to frequently switch working postures and may even need to use different types and sizes of chainsaws or other tools. This not only increases the complexity of logging and the difficulty of operation but also affects work efficiency and increases safety hazards.

[0004] Therefore, in order to facilitate the sawing and felling of trees, reduce the complexity of logging, reduce the difficulty of operating chainsaws, improve work efficiency, and reduce safety hazards. Utility Model Content

[0005] The purpose of this invention is to propose a switching mechanism for switching chainsaw cutting modes, which solves the problem in the prior art where operators need to frequently adjust their grip on the chainsaw when using it for logging. This increases the complexity of logging, the difficulty of operation, and also affects work efficiency and safety hazards.

[0006] To achieve the above objectives, this utility model proposes a switching mechanism for switching chainsaw cutting modes, including a chainsaw body and an operating handle assembly movably mounted on the chainsaw body. The operating handle assembly and the chainsaw body are provided with a rotating structure and a self-locking structure. The operating handle assembly can rotate on the chainsaw body through the rotating structure, and the self-locking structure can lock and fix the operating handle assembly, allowing the operating handle assembly to rotate at a fixed angle.

[0007] Optionally, the operating handle assembly includes a first handle movably mounted on the chainsaw body, the rotating structure is disposed on the chainsaw body and the first handle, and the self-locking structure is disposed on the first handle and the chainsaw body.

[0008] Optionally, the first handlebar is provided with a clearance groove corresponding to the rotating structure.

[0009] Optionally, a chainsaw starter assembly is mounted on the first handle.

[0010] Optionally, the operating handle assembly further includes a second handle mounted on the first handle and movably connected to the chainsaw body; the rotating structure may also be mounted on the chainsaw body and the second handle.

[0011] Optionally, the rotating structure includes a mounting hole disposed in the chainsaw body, and / or a protrusion, an insert disposed on the operating handle assembly and adapted to the mounting hole, and / or a circular hole disposed on the operating handle assembly and adapted to the protrusion.

[0012] Optionally, the protrusion is provided with an annular groove and a connecting groove, the connecting groove being connected to the annular groove, and a snap-fit ​​block adapted to the connecting groove is provided in the circular hole. The snap-fit ​​block can enter the annular groove through the connecting groove and can rotate within the annular groove.

[0013] Optionally, the first handle includes a right handle and a left handle mounted on the right handle.

[0014] Optionally, the self-locking structure includes a rotating block movably mounted in the first handle, an elastic reset member fitted on the rotating block, a rotating button mounted on the first handle, and multiple self-locking grooves on the chainsaw body corresponding to the rotating block.

[0015] Optionally, the rotary button can drive the rotary block to rotate, causing the elastic reset element to rotate and produce elastic deformation.

[0016] Optionally, the rotating block includes a rotating column, a self-locking block and a mating block disposed on the rotating column, a through hole disposed on the mating block, and a connecting groove disposed on the rotating column.

[0017] Optionally, the rotary button is provided with a connecting block corresponding to the connecting slot. After the connecting block is inserted into the connecting slot, the rotary button can drive the rotating column to rotate.

[0018] Optionally, one end of the resilient reset member is installed in the through hole, and the other end is installed on the first handle.

[0019] Optionally, the secondary handlebar is set at an angle to the primary handlebar, and the primary handlebar is set in an L-shape.

[0020] Optionally, the chainsaw starting assembly includes a pin installed inside the first handle, a trigger movably mounted on the pin, a trigger control button protruding and abutting against the trigger, and a return spring installed inside the trigger control button; one end of the trigger abuts against the start button of the trigger switch.

[0021] Optionally, the trigger can only be pulled after pressing the trigger control button. The trigger rotates around the pivot when the operator pulls it, and the trigger is activated by pressing the start button on the trigger switch.

[0022] Compared with the prior art, the present invention provides a switching mechanism for switching chainsaw cutting modes, which has the following advantages:

[0023] The switching mechanism for switching chainsaw cutting modes, through the setting of the operating handle assembly and the combination of the rotating structure, allows the rotating handle to rotate on the chainsaw body and be fixed in a designated position by the self-locking structure. This changes the relative position of the chainsaw operating handle assembly and the chainsaw body, thereby changing the relative position of the chainsaw chain and the operator. This allows the operator to maintain the same grip posture to complete the logging process, reducing the complexity of logging, lowering the difficulty of operation, improving work efficiency, and reducing safety hazards. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the utility model in use.

[0025] Figure 2 This is a schematic diagram of another usage state of this utility model.

[0026] Figure 3 This is a schematic diagram of the overall structure of this utility model.

[0027] Figure 4 This is a disassembly diagram of the operating handle assembly and the pneumatic assembly of the chainsaw of this utility model.

[0028] Figure 5 This is a schematic diagram of the structure of the rotating block of this utility model.

[0029] Figure 6 This is a schematic diagram of the rotary button of this utility model.

[0030] Figure 7 This is a schematic diagram of the main body of the chainsaw of this utility model.

[0031] Figure 8 This is a structural schematic diagram of the main body of the chainsaw of this utility model from another perspective.

[0032] Figure 9 This is a schematic diagram showing the connection between the front end of the chainsaw body and the operating handle assembly in Embodiment 2 of this utility model.

[0033] Figure 10 This is a utility model Figure 9 A schematic diagram of the operating handle assembly.

[0034] Figure 11 This is a schematic diagram showing the connection between the rear end of the chainsaw body and the operating handle assembly in Embodiment 2 of this utility model.

[0035] Figure 12 This is a utility model Figure 11A schematic diagram of the operating handle assembly.

[0036] The diagram shows: 1. Chainsaw body; 11. Upper oil tank; 12. Box body; 2. Operating handle assembly; 21. First handle; 211. Right handle; 212. Left handle; 22. Second handle; 23. Auxiliary handle; 3. Rotating structure; 31. Mounting hole; 32. Protrusion; 321. Ring groove; 322. Connecting groove; 33. Insert block; 34. Round hole; 341. Snap-fit ​​block; 4. Self-locking structure; 41. Rotating block; 411. Rotating column; 412. Self-locking block; 413. Mating block; 414. Through hole; 415. Connecting groove; 42. Elastic reset component; 43. Rotary button; 431. Connecting block; 44. Self-locking groove; 5. Chainsaw starting assembly; 51. Trigger; 52. Trigger control button; 53. Return spring; 54. Trigger switch; 55. Pin. Detailed Implementation

[0037] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, illustrates the present invention. Numerous specific details are set forth in the description below to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] The switching mechanism for switching chainsaw cutting modes described in this application can be applied to occasions where operators need to frequently change the way they hold the chainsaw, and can also be used in other similar application scenarios. The following is a detailed description of the switching mechanism for switching chainsaw cutting modes.

[0039] Example 1

[0040] See appendix Figure 1 — Figure 8 The diagram shows a preferred embodiment of a switching mechanism for switching chainsaw cutting modes according to this application. The switching mechanism includes a chainsaw body 1 and an operating handle assembly 2 movably mounted on the chainsaw body 1. The operating handle assembly 2 and the chainsaw body 1 are provided with a rotating structure 3 and a self-locking structure 4.

[0041] This invention provides an installation position for the operating handle assembly 2 by setting the chainsaw body 1; the operating handle assembly 2 provides a gripping condition for the operator, making it easy for the operator to hold the chainsaw; the rotating structure 3 allows the operating handle assembly 2 to rotate on the chainsaw body 1, changing the relative position of the chainsaw body 1 and the operating handle assembly 2, allowing the operator to adjust the position of the chainsaw while holding it in the same gripping posture; the self-locking structure 4 limits and locks the operating handle assembly 2, preventing it from rotating arbitrarily, ensuring that the operating handle assembly 2 can only rotate when the operator needs to operate it, and ensuring that the operating handle assembly 2 will not rotate during the sawing process, thus ensuring the safety of the chainsaw sawing.

[0042] See appendix Figure 1 — Figure 4 As shown, in this utility model, the operating handle assembly 2 includes a first handle 21 movably mounted on the chainsaw body 1, a second handle 22 mounted on one end of the first handle 21 and movably connected to the chainsaw body 1, and an auxiliary handle 23 mounted on the first handle 21 and the second handle 22; wherein, the rotating structure 3 is disposed on the chainsaw body 1, the first handle 21 and the second handle 22; and the chainsaw starting assembly 5 is mounted on the first handle 21.

[0043] This utility model features a first handle 21 for movable connection with the chainsaw body 1, and a second handle 22 to form two connection points with the chainsaw body 1, ensuring a stable connection between the operating handle assembly 2 and the chainsaw body 1. It is important to note that the two connection points of the first handle 21 and the second handle 22 to the chainsaw body 1 are located on two parallel surfaces of the chainsaw body 1. The first handle 21 is L-shaped, ensuring connection with the second handle 22 while facilitating operator grip. The auxiliary handle 23 further enhances operator grip and operation of the chainsaw. It is worth noting that the auxiliary handle 23 is angled to the first handle 21, further facilitating grip and force application, thus improving the chainsaw's controllability.

[0044] See appendix Figure 4 — Figure 8 As shown, in this utility model, the rotating structure 3 includes mounting holes 31 and protrusions 32 respectively disposed at both ends of the chainsaw body 1, an insert block 33 disposed on the first handle 21 and adapted to the mounting holes 31, and a round hole 34 disposed on the second handle 22 and adapted to the protrusions 32. It should be noted that in this application, rotation can be achieved solely through the engagement of the mounting holes 31 and the insert block 33, or solely through the engagement of the protrusions 32 and the round hole 34.

[0045] This invention, through the installation hole 31 and the insertion block 33 on the first handle 21, allows one end of the first handle 21 to be movably mounted on the chainsaw body 1. Through the protrusion 32 and the round hole 34, the second handle 22 can also be movably mounted on another parallel surface of the chainsaw body 1, thus ensuring that both ends of the first handle 21 are movably connected. It should be noted that the central axes of the installation hole 31 and the protrusion 32 are on the same line. It should also be noted that the second handle 22 can be connected to the first handle 21 using bolts or other connection methods.

[0046] See appendix Figure 4 — Figure 8 As shown, in this utility model, the protrusion 32 is provided with an annular groove 321 and a connecting groove 322. The annular groove 321 and the connecting groove 322 are connected. The circular hole 34 is provided with a snap-fit ​​block 341 that is adapted to the connecting groove 322. The snap-fit ​​block 341 can enter the annular groove 321 through the connecting groove 322 and can rotate within the annular groove 321.

[0047] This invention provides rotational conditions for the locking block 341 through the setting of the annular groove 321, and limits the position of the locking block 341, ensuring that the locking block 341 can only rotate within the annular groove 321 and cannot be translated; through the setting of the connecting groove 322, the locking block 341 can enter the annular groove 321, and ensures that the locking block 341 can only be separated from the annular groove 321 through the annular groove 321, thereby ensuring the stability of the connection between the second handle 22 and the chainsaw body 1.

[0048] See appendix Figure 3 and Figure 4 As shown, in this utility model, the first handle 21 includes a right handle 211 and a left handle 212 mounted on the right handle 211; the chainsaw body 1 includes an upper oil tank 11 and a housing 12 mounted on the upper oil tank 11.

[0049] This utility model forms a first handle 21 by splicing the right handle 211 and the left handle 212, thereby ensuring that the chainsaw starting component 5 can be installed on the first handle 21. The chainsaw body 1 is formed by splicing the upper oil tank 11 and the housing 12, providing an installation position for the power source components and other structures required by the chainsaw, and facilitating the subsequent maintenance and replacement of the power source components of the chainsaw.

[0050] See appendix Figure 3 — Figure 8As shown, in this utility model, the self-locking structure 4 includes a rotating block 41 installed inside the first handle 21, an elastic reset member 42 fitted on the rotating block 41, a rotary button 43 installed on the first handle 21, and multiple self-locking grooves 44 on the chainsaw body 1 corresponding to the rotating block 41. The rotating block 41 includes a rotating column 411, a self-locking block 412 and a mating block 413 on the rotating column 411, a through hole 414 on the mating block 413, and a connecting groove 415 on the rotating column 411. The rotary button 43 has a connecting block 431 corresponding to the connecting groove 415. One end of the elastic reset member 42 is installed in the through hole 414, and the other end is installed on the first handle 21. It should be noted that the first handle 21 has a rotating column 411 for providing a rotation center for the rotating block 41. It should also be noted that the reset elastic member 42 can be a torsion spring.

[0051] This invention, through the setting of the rotating block 41 and the self-locking groove 44, can limit the first handle 21, ensuring that the first handle 21 can be fixed on the chainsaw body 1; through the setting of the elastic reset member 42, a reset spring force is provided. After the rotating block 41 rotates, a spring force is generated, so that after the first handle 21 moves to a specified angle and a specified position, the rotating block 41 will immediately rotate and insert into the self-locking groove 44 to self-lock and limit the first handle 21. The operator does not need to operate manually, thereby improving the adjustment efficiency; through the setting of the rotary button 43 The rotating block 41 is used to drive the rotating block 41 to rotate, so that the rotating block 41 rotates and separates from the self-locking groove 44; the rotating column 411 is used to provide an installation position for the self-locking block 412 and the mating block 413, and at the same time provide a rotation center for the self-locking block 412 and the mating block 413; the through hole 414 is used to fix one end of the elastic reset member 42; the connecting groove 415 is used to cooperate with the connecting block 431, so that the rotating button 43 can drive the rotating column 411 to rotate, thereby driving the self-locking block 412 and the mating block 413 to rotate.

[0052] See appendix Figure 3 and Figure 4As shown, in this utility model, the chainsaw starting assembly 5 includes a pin 55 installed inside the first handle 21, a trigger 51 movably mounted on the pin, a trigger switch 54 and a trigger control button 52 installed inside the first handle 21. It should be noted that the trigger control button 52 is an automatic reset button, meaning that a reset spring 53 is installed inside the trigger control button 52, and automatic reset is achieved through the reset force of the reset spring 53. One end of the trigger 51 abuts against the start button of the trigger switch 54, and the trigger... The top of trigger 51 abuts against the trigger control button 52. Specifically, after one end of trigger 51 abuts against the start button on trigger switch 54, the operator pulls trigger 51, causing trigger 51 to rotate counterclockwise and press the start button on trigger switch 54. Trigger control button 52 is located on the counterclockwise rotation trajectory of trigger 51 and is in close contact with trigger 51. When trigger control button 52 is not pressed, trigger 51 cannot rotate, thereby ensuring that trigger 51 will not be accidentally activated and ensuring the safety of the chainsaw.

[0053] It should be noted that when the trigger 51 is installed via the pin 55, the weights of the two ends of the trigger 51 are not the same. The side of the trigger 51 located near the trigger control button 52 on the pin 55 is heavier than the other side. When the operator does not press the trigger 51, the trigger 51 will automatically reset by gravity. A limit post is set inside the first handle 21, and the other end of the trigger 51 is located between the limit post and the trigger switch 54.

[0054] See appendix Figure 1 — Figure 8 As shown, the usage process of this utility model is as follows:

[0055] The operator presses the trigger control button 52, causing it to move inward into the operating handle assembly 2. At this time, the trigger control button 52 is no longer on the movement trajectory of the trigger 51. The operator can pull the trigger 51 to rotate it around the pin 55 and press the start button of the trigger switch 54 to start the chainsaw. When the chainsaw needs to be stopped, the operator only needs to release the trigger 51. At this time, the trigger 51 will reset by gravity. Releasing the press of the start button of the trigger switch 54 will also reset the trigger control button 52 through the return spring 53, thus restoring the trigger 51 to its limit position.

[0056] When the operating handle assembly 2 needs to be rotated, the operator releases the trigger 51 to stop the chainsaw from working. The operator then rotates the rotation button 43, which, through the cooperation of the connecting block 431 and the connecting groove 415, drives the rotating block 41 to rotate. This causes the self-locking block 412 in the rotating block 41 to rotate and separate from the self-locking groove 44. At this point, the fixed connection between the first handle 21 and the chainsaw body 1 is released, and the first handle 21 can rotate. Simultaneously, the second handle 22 can also rotate. The operator can then rotate the operating handle assembly 2. After rotating a certain angle, the rotating block 41 is restricted by the chainsaw body 1. If the rotation button 43 cannot be released, the operating handle assembly 2 will continuously apply a rotational reset force to the rotating block 41 after the elastic reset member 42 is in a torsional state and has elastic force. After the operating handle assembly 2 rotates to the specified angle, the rotating block 41 will move to another self-locking groove 44. At this time, the elastic reset member 42 will drive the rotating block 41 to rotate and reset, and the self-locking block 412 on the rotating block 41 will be inserted into the self-locking groove 44 to complete the angle adjustment. It should be noted that multiple self-locking grooves 44 can be provided on the chainsaw body 1 so that the operating handle assembly 2 can be adjusted to multiple angles.

[0057] Example 2

[0058] See appendix Figure 9 — Figure 12 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the operating handle assembly 2 includes a first handle 21 movably mounted on the chainsaw body 1, and a rotating structure 3 is disposed on the chainsaw body 1 and the first handle 21; wherein, the rotating structure 3 can be a mounting hole 31 or a protrusion 32 disposed on the chainsaw body 1, an insert 33 disposed on the first handle 21, or a round hole 34; specifically, when the rotating structure is a mounting hole 31, the first handle 21 is provided with an insert 33, and when the chainsaw body 1 is provided with a protrusion 32, the first handle 21 is provided with a round hole 34.

[0059] Compared to the embodiments described above, this embodiment has a simpler structure and lower manufacturing cost.

[0060] The above embodiments are illustrative of this application and are not intended to limit this application. Any simple modifications to this application are within the protection scope of this application.

Claims

1. A switching mechanism for switching chainsaw cutting modes, characterized in that, The chain saw includes a main body (1) and an operating handle assembly (2) movably mounted on the main body (1). The operating handle assembly (2) and the main body (1) are provided with a rotating structure (3) and a self-locking structure (4). The operating handle assembly (2) can rotate on the main body (1) through the rotating structure (3). The self-locking structure (4) can self-lock and fix the operating handle assembly (2) so that the operating handle assembly (2) can rotate at a fixed angle.

2. The switching mechanism for switching chainsaw cutting modes according to claim 1, characterized in that, The operating handle assembly (2) includes a first handle (21) movably mounted on the chainsaw body (1), a rotating structure (3) disposed on the chainsaw body (1) and the first handle (21), and a self-locking structure (4) disposed on the first handle (21) and the chainsaw body (1); A chainsaw starter assembly (5) is installed on the first handle (21); Alternatively, the rotating structure (3) is mounted on the chainsaw body (1) and the second handle (22).

3. The switching mechanism for switching chainsaw cutting modes according to claim 2, characterized in that, The operating handle assembly (2) also includes a second handle (22) mounted on the first handle (21) and movably connected to the chainsaw body (1).

4. The switching mechanism for switching chainsaw cutting modes according to claim 2 or 3, characterized in that, The rotating structure (3) includes a mounting hole (31) provided on the chainsaw body (1), or / and a protrusion (32), an insert (33) provided on the operating handle assembly (2) and adapted to the mounting hole (31), and / or a round hole (34) provided on the operating handle assembly (2) and adapted to the protrusion (32).

5. The switching mechanism for switching chainsaw cutting modes according to claim 4, characterized in that, The protrusion (32) is provided with an annular groove (321) and a connecting groove (322). The connecting groove (322) is connected to the annular groove (321). The circular hole (34) is provided with a snap-fit ​​block (341) that is adapted to the connecting groove (322). The snap-fit ​​block (341) can enter the annular groove (321) through the connecting groove (322) and can rotate in the annular groove (321). The mounting holes (31) and protrusions (32) are located on both sides of the chainsaw body (1).

6. The switching mechanism for switching chainsaw cutting modes according to claim 2, characterized in that, The first handle (21) includes a right handle (211) and a left handle (212) mounted on the right handle (211).

7. The switching mechanism for switching chainsaw cutting modes according to claim 2, characterized in that, The self-locking structure (4) includes a rotating block (41) movably installed in the first handle (21), an elastic reset piece (42) fitted on the rotating block (41), a rotating button (43) installed on the first handle (21), and a plurality of self-locking grooves (44) on the chainsaw body (1) corresponding to the rotating block (41). The rotary button (43) can drive the rotary block (41) to rotate, causing the elastic reset member (42) to rotate and generate elastic deformation.

8. The switching mechanism for switching chainsaw cutting modes according to claim 7, characterized in that, The rotating block (41) includes a rotating column (411), a self-locking block (412) and a mating block (413) disposed on the rotating column (411), a through hole (414) disposed on the mating block (413), and a connecting groove (415) disposed on the rotating column (411). The rotary button (43) is provided with a connecting block (431) corresponding to the connecting groove (415). After the connecting block (431) is inserted into the connecting groove (415), the rotary button (43) can drive the rotating column (411) to rotate. One end of the elastic reset member (42) is installed in the through hole (414), and the other end is installed on the first handle (21).

9. The switching mechanism for switching chainsaw cutting modes according to claim 2, characterized in that, A secondary handle (23) is detachably mounted on the first handle (21) and / or the second handle (22).

10. The switching mechanism for switching chainsaw cutting modes according to claim 2, characterized in that, The chainsaw starting assembly (5) includes a trigger (51), a trigger control button (52), a return spring (53), a trigger switch (54), and a pin (55). The pin (55) is installed inside the first handle (21); The trigger (51) is movably mounted on the pin (55), and one end of the trigger (51) abuts against the start button of the trigger switch (54); The trigger control button (52) protrudes and abuts against the trigger (51) to limit the rotation of the trigger (51) around the pin (55); The return spring (53) is installed inside the trigger control button (52); Only after pressing the trigger control button (52) can the trigger (51) be pulled. The trigger (51) is rotated by the operator pulling the pivot pin (55), and the trigger (51) presses the start button on the trigger switch (54).

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