Quick release mechanism for a chain saw guard

Abstract

The utility model discloses a kind of quick-release mechanisms of chain saw baffle, including baffle and chain saw main body, mounting hole group, fixed shaft, shaft sleeve, connecting structure and elastic reset piece;Mounting hole group is set on baffle;Fixed shaft is installed on chain saw main body, and with shaft sleeve is movably connected;Shaft sleeve is movably connected with fixed shaft, and shaft sleeve provides rotation center for baffle;Connecting structure is used to detachably connect shaft sleeve, fixed shaft and baffle, and the axial fixation of baffle is carried out, and make baffle can be circumferential motion around shaft sleeve, and elastic reset piece provides the torsion that baffle returns to initial installation position.The utility model connects shaft sleeve, fixed shaft and baffle by the setting of connecting structure, and the whole dismounting process or installation process of baffle does not need to use other tools to cooperate, so that baffle can be quickly disassembled and installed, to shorten baffle dismounting time, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of chainsaw technology, specifically to a quick-release mechanism for a chainsaw baffle. Background Technology

[0002] A saw chain is a flexible combination cutting tool, consisting of drive chain links, cutting chain links, and connecting links arranged in a specific pattern and riveted together with a chain shaft. It is commonly used in chainsaws, electric chainsaws, and other equipment, and is a key component in logging machines, lawnmowers, and other equipment used in forestry, landscaping, and timber processing industries.

[0003] When using a chainsaw, there is a possibility that the saw chain may break. Without proper protection, the operator may be injured by the saw chain being thrown out. Therefore, in the existing technology, a guard is installed on the chainsaw to protect the operator.

[0004] The applicant improved the chainsaw, enabling it to switch between different working modes to meet the needs of both horizontal and vertical sawing. Figure 13 and Figure 14 As shown. In order to use the improved chainsaw, the position of the baffle needs to be changed frequently. However, the existing baffle is generally fixed to the chainsaw frame with screws. When changing the position of the baffle, tools are required for disassembly, which is inconvenient and affects work efficiency.

[0005] Therefore, there is an urgent need to provide a quick-release mechanism that allows the baffle to be quickly disassembled and installed, thereby shortening the baffle disassembly and assembly time and improving work efficiency. Utility Model Content

[0006] The purpose of this invention is to propose a quick-release mechanism for chainsaw baffles, which solves the problem that existing baffles require tools for disassembly and installation, making them cumbersome and affecting work efficiency.

[0007] To achieve the above objectives, this utility model proposes a quick-release mechanism for a chainsaw baffle, comprising a baffle and a chainsaw body, a mounting hole assembly, a fixed shaft, a bushing, a connecting structure, and an elastic reset component. The mounting hole assembly is disposed on the baffle, comprising a first circular hole and second circular holes disposed at the two ends of the first circular hole, the diameter of the second circular hole being larger than the diameter of the first circular hole. The fixed shaft is mounted on the chainsaw body and connected to the bushing. The bushing is movably mounted on the baffle and located within the first circular hole, providing a rotation center for the baffle. The connecting structure is used to detachably connect the bushing, the fixed shaft, and the baffle, axially fixing the baffle and allowing the baffle to move circumferentially around the bushing. This connecting structure allows the baffle to be mounted on or removed from the fixed shaft by pressing or rotating. One end of the elastic reset component is mounted on the baffle to drive the baffle to reset and rotate, and the other end is mounted on the chainsaw body or the bushing.

[0008] Optionally, the connection structure includes an insertion hole located at the center of the bushing and adapted to the fixed shaft, a movable hole located on the bushing, a rolling element movably installed in the movable hole, a limiting groove located on the fixed shaft and adapted to the rolling element, and a rolling element control structure that abuts against the rolling element.

[0009] Optionally, the movable hole is connected to the insertion hole. After the fixed shaft is inserted into the insertion hole, the movable hole is connected to the limiting groove. The rolling element can enter the limiting groove through the movable hole. The diameter of the connection between the movable hole and the insertion hole is smaller than the diameter of the movable hole.

[0010] Optionally, a first guide slope is provided on the end of the fixed shaft away from the chainsaw body.

[0011] Optionally, the connection structure includes a connection knob that is threadedly mounted on one end of a fixed shaft.

[0012] Optionally, the connecting knob abuts against one end of the bushing; one end of the elastic reset element is mounted on the bushing, and the other end is mounted on the baffle.

[0013] Optionally, a retaining ring corresponding to another second circular hole is rotatably mounted on the bushing, and a retaining ring is mounted on the bushing to axially fix the retaining ring.

[0014] Optionally, the bushing is provided with a slot and a rotation limiting groove, the rotation limiting groove being connected to the slot and arranged in an L-shape; the retaining ring is provided with a plug that is adapted to the slot.

[0015] Optionally, the limiting ring is provided with a locking block that is adapted to the rotating limiting groove, and the locking block can enter the rotating limiting groove through the slot.

[0016] Optionally, the rolling element control structure includes a rotating groove adapted to the rolling element and disposed in the first circular hole, a mounting groove disposed on the side wall of the first circular hole, a slider located in the mounting groove and in close contact with the outer wall of the bushing, an abutting elastic element abutting against the slider, and a slider control structure for abutting the slider, the slider control structure being mounted on the baffle.

[0017] Optionally, the other end of the abutting elastic element contacts the bottom of the mounting groove; the slider is provided with a mounting hole for providing a mounting position for the abutting elastic element; the rotating groove is connected to the mounting groove.

[0018] Optionally, the bushing is provided with a limiting plate corresponding to one of the second circular holes, the limiting plate is provided with a first mark, and the second circular hole is provided with a second mark corresponding to the first mark.

[0019] Optionally, the slider is provided with an abutment platform that abuts against the slider control structure; one end of the elastic reset member is mounted on the bushing and the other end is mounted on the baffle; the cross-sectional shape of the fixed shaft is waist-shaped.

[0020] Optionally, the slider control structure includes a first control cover plate mounted on the baffle, a through groove disposed on the first control cover plate, a rotating plate located in the through groove, a first rotating pin eccentrically disposed on the rotating plate, and a first abutting plate disposed on the rotating plate and abutting against the abutting platform. The first abutting plate can rotate eccentrically around the first rotating pin. The first rotating pin is disposed on the baffle, and the first abutting plate is located in the mounting groove.

[0021] Optionally, the slider control structure includes a second rotating pin movably mounted on the baffle, a connecting part disposed on the second rotating pin, a status plate disposed on the connecting part, a control post disposed on the status plate, a second abutting plate disposed on the connecting part and abutting against the abutting platform, a second control cover plate mounted on the baffle, and a waist-shaped groove disposed on the second control cover plate, with the control post located in the waist-shaped groove; the control post can drive the second abutting plate to rotate around the second rotating pin.

[0022] Optionally, the slider control structure includes a third rotating pin movably mounted on the baffle, a control elastic reset member fitted on the third rotating pin, a third control plate movably mounted on the third rotating pin, a control button mounted on one end of the third control plate, a third abutting plate mounted on the other end of the third control plate and abutting against the abutting platform, a third control cover plate mounted on the baffle, a button slot provided on the third control cover plate corresponding to the control button, and one end of the control elastic reset member being connected to the baffle and the other end being connected to the third control plate.

[0023] Optionally, the rolling element control structure includes a slot on the bushing, a limiting ring movably mounted in the slot for limiting the rolling element, a slip ring fitted on the bushing, a compression spring in the second circular hole, and a rolling element button mounted in the second circular hole away from the chainsaw body and in contact with the slip ring.

[0024] Optionally, the opening of the second circular hole is provided with a slot adapted to the rolling button, the rolling button is provided with a locking protrusion adapted to the slot, and the rolling button is also provided with a deformation groove; the elastic reset member is installed in the second circular hole near the chainsaw body, with one end installed on the baffle and the other end installed on the chainsaw body.

[0025] Optionally, the connection structure includes a baffle lock that is threadedly mounted on a fixed shaft, a baffle cover mounted on the fixed shaft and located between the baffle lock and the chainsaw body, the baffle cover being connected to a bushing, and the baffle being located between the baffle cover and the chainsaw body.

[0026] Optionally, a limit stop is installed on the bushing, and a limit protrusion corresponding to the limit stop is provided on the chainsaw body.

[0027] Compared with the prior art, this utility model provides a quick-release mechanism for a chainsaw baffle, which has the following advantages:

[0028] The quick-release mechanism of this chainsaw baffle connects the bushing, fixed shaft, and baffle through a connecting structure. The entire disassembly or installation process of the baffle does not require the use of other tools, allowing the baffle to be quickly disassembled and installed, thereby shortening the baffle disassembly and assembly time and improving work efficiency. Attached Figure Description

[0029] Figure 1 This is an assembly diagram of the overall structure of Embodiment 1 of this utility model.

[0030] Figure 2 This is a utility model Figure 1 A magnified view of a portion of point A in the middle.

[0031] Figure 3 This is an assembly diagram of the connection structure in Embodiment 1 of this utility model.

[0032] Figure 4 This is a schematic diagram showing the connection between the rolling element and the fixed shaft in Embodiment 1 of this utility model.

[0033] Figure 5 This is a schematic diagram of the connection between the fixed shaft and the bushing in Embodiment 1 of this utility model.

[0034] Figure 6 This is a schematic diagram of the rolling element control structure in Embodiment 1 of this utility model.

[0035] Figure 7 This is a schematic diagram of the rolling element control structure in Embodiment 2 of this utility model.

[0036] Figure 8 This is a schematic diagram of the rolling element control structure in Embodiment 3 of this utility model.

[0037] Figure 9 This is an assembly diagram of the overall structure of Embodiment 4 of this utility model.

[0038] Figure 10 This is an assembly diagram of the connection structure in Embodiment 5 of this utility model.

[0039] Figure 11 This is a cross-sectional schematic diagram of the connection structure in Embodiment 5 of this utility model.

[0040] Figure 12 This is a schematic diagram of the bushing and connecting structure in Embodiment 5 of this utility model.

[0041] Figure 13 This is an assembly diagram of the overall structure of Embodiment 6 of this utility model.

[0042] Figure 14 This is a cross-sectional view of the connection structure in Embodiment 6 of this utility model.

[0043] Figure 15 This is a schematic diagram of the usage state of this utility model. Figure 1 .

[0044] Figure 16 This is a schematic diagram of the usage state of this utility model. Figure 2 .

[0045] The diagram shows the following components: 1. Baffle; 2. Chainsaw body; 3. Mounting hole group; 31. First round hole; 32. Second round hole; 321. Bayonet; 4. Fixed shaft; 41. First guide slope; 5. Bushing; 51. Limiting plate; 511. First mark; 512. Second mark; 52. Limiting retaining ring; 521. Locking block; 53. Snap ring; 531. Insertion block; 54. Slot; 55. Rotary limiting groove; 6. Connecting structure; 6a. Connecting knob; 601. Baffle locking component; 602. Baffle cover; 604. Limiting block; 605. Limiting protrusion; 61. Insertion hole; 62. Movable hole; 63. Rolling component; 64. Limiting groove; 651. Rotating groove; 652. Mounting groove; 653. Slider; 6531. Abutment platform; 654. Abutment elastic component; 6551. First control cover plate. 6552. Through slot; 6553. Rotating plate; 6554. First rotating pin; 6555. First abutting plate; 6561. Second rotating pin; 6562. Connecting part; 6563. Status plate; 6564. Control column; 6565. Second abutting plate; 6566. Second control cover plate; 6567. Waist-shaped groove; 6571. Third rotating pin; 6572. Control elastic reset component; 6573. Third control plate; 6574. Control button; 6575. Third abutting plate; 6576. Third control cover plate; 6577. Button groove; 658. Mounting hole; 661. Slot; 662. Limiting retaining ring; 663. Slip ring; 664. Compression spring; 665. Rolling button; 666. Locking protrusion; 667. Deformation groove; 7. Elastic reset component. Detailed Implementation

[0046] 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.

[0047] The quick-release mechanism for a chainsaw baffle provided in this application can be applied to occasions where chainsaw baffles need to be frequently disassembled and installed, and of course it can also be used in other similar application scenarios. The quick-release mechanism for a chainsaw baffle is described in detail below.

[0048] Example 1

[0049] See appendix Figure 1 — Figure 6 The diagram shows a preferred embodiment of the quick-release mechanism for a chainsaw baffle according to this application. The quick-release mechanism includes a baffle 1 and a chainsaw body 2, a mounting hole group 3 on the baffle 1, a fixed shaft 4 mounted on the chainsaw body 2, a bushing 5 located within the mounting hole group 3, a connecting structure 6 for detachably connecting the bushing 5, the fixed shaft 4, and the baffle 1, and an elastic reset member 7 with one end mounted on the baffle 1. The mounting hole group 3 includes a first circular hole 31 and second circular holes 32 located at both ends of the first circular hole 31. The bushing 5 is located in the first circular hole 31 and is movably connected to the baffle 1 and the fixed shaft 4. The connecting structure 6 can axially fix the baffle 1 and allow the baffle 1 to rotate circumferentially around the bushing 5. The other end of the elastic reset member 7 is mounted on the chainsaw body 2 or the bushing 5.

[0050] See appendix Figure 1 — Figure 5 As shown, in this utility model, the connecting structure 6 includes an insertion hole 61 located at the center of the bushing 5 and adapted to the fixed shaft 4, a movable hole 62 located on the bushing 5, a rolling element 63 movably installed in the movable hole 62, a limiting groove 64 located on the fixed shaft 4 and adapted to the rolling element 63, and a rolling element control structure abutting against the rolling element 63. It should be noted that the groove wall of the limiting groove 64 away from the chainsaw body 2 is inclined, and a first guide inclined surface 41 is provided on the end of the fixed shaft 4 away from the chainsaw body 2. The movable hole 62 is connected to the insertion hole 61. After the fixed shaft 4 is inserted into the insertion hole 61, the movable hole 62 is connected to the limiting groove 64, and the rolling element 63 can enter the limiting groove 64 through the movable hole 62. The diameter of the connection between the movable hole 62 and the insertion hole 61 is smaller than the diameter of the movable hole 62. It should be noted that the rolling element 63 can be a ball bearing.

[0051] This invention utilizes the insertion hole 61 to allow the bushing 5 to connect with the fixed shaft 4; the movable hole 62 provides an installation position for the rolling element 63; the limiting groove 64, in conjunction with the rolling element 63, securely connects the bushing 5 to the fixed shaft 4; the first guide slope 41 guides the rolling element 63, causing it to move into the movable hole 62, ensuring the bushing 5 can be fitted onto the fixed shaft 4; the connection between the movable hole 62 and the insertion hole 61 ensures the rolling element 63 can enter the limiting groove 64 from the movable hole 62 to connect the bushing 5 to the fixed shaft 4; and the limitation on the diameter of the connection between the movable hole 62 and the insertion hole 61 ensures the rolling element 63 will not completely fall into the limiting groove 64 or the insertion hole 61 through the movable hole 62.

[0052] See appendix Figure 1 and Figure 3 As shown, in this utility model, a limiting retaining ring 52 corresponding to another second circular hole 32 is rotatably mounted on the bushing 5. A retaining ring 53 is mounted on the bushing 5 to axially fix the limiting retaining ring 52. The bushing 5 is provided with a slot 54 and a rotating limiting groove 55, which is connected to the slot 54 and is arranged in an L-shape. The retaining ring 53 is provided with a plug 531 that is adapted to the slot 54. The limiting retaining ring 52 is provided with a retaining block 521 that is adapted to the rotating limiting groove 55. The retaining block 521 can enter the rotating limiting groove 55 through the slot 54. It should be noted that the bushing 5 is also provided with an elastic reset member limiting groove that is connected to the slot 54 and is used for the installation of the elastic reset member 7.

[0053] This invention utilizes a limiting retaining ring 52 to install the bushing 5 in the mounting hole group 3, preventing the bushing 5 from separating from the mounting hole group 3 during the disassembly of the baffle 1, thus ensuring that the baffle 1 can be disassembled and reassembled multiple times. A retaining ring 53 limits the limiting retaining ring 52, preventing it from rotating and separating from the bushing 5 during use, thereby ensuring the reliability of the connection between the bushing 5 and the baffle 1. With the slot 54 and the rotation limiting groove 55, along with the locking block 521, the limiting retaining ring 52 can be installed on the end of the bushing 5 facing the chainsaw body 2, and the maximum diameter of the limiting retaining ring 52 is greater than the diameter of the first circular hole 31. The insert block 531 effectively seals the slot 54, limiting the locking block 521 when it enters the rotation limiting groove 55, ensuring the reliability of the connection between the limiting retaining ring 52 and the bushing 5, and the reliability of the connection between the bushing 5 and the baffle 1.

[0054] See appendix Figure 1 — Figure 5As shown, in this utility model, the rolling element control structure includes a rotating groove 651 adapted to the rolling element 63 within the first circular hole 31, a mounting groove 652 on the side wall of the first circular hole 31, a slider 653 located within the mounting groove 652 and in close contact with the outer wall of the bushing 5, an abutting elastic element 654 abutting against the slider 653, and a slider control structure for abutting against the slider 653. This slider control structure is mounted on the baffle 1. It should be noted that the abutting elastic element 654 can be a spring.

[0055] This invention utilizes the rotating groove 651 to avoid and limit the rolling element 63, ensuring that the rolling element 63 does not interfere with the inner wall of the baffle mounting hole group 3 when the baffle 1 rotates, thus ensuring that the baffle 1 can rotate normally. The slider 653 is used to abut the rolling element 63, and in conjunction with the abutting elastic element 654, the slider 653 can compress the abutting elastic element 654 along the mounting groove 652. It should be noted that the slider 653 is located within the mounting groove 652. The abutting elastic element 654 pushes the slider 653 to reset, ensuring that the slider 653 can tightly adhere to the outer wall of the bushing 5, preventing the rolling element 63 from sliding out of the movable hole 62. The slider control structure is used to limit the slider 653, controlling whether the slider 653 can compress the abutting elastic element 654.

[0056] See appendix Figure 3 — Figure 5 As shown, in this utility model, the other end of the abutting elastic member 654 contacts the bottom of the mounting groove 652; the slider 653 is provided with a mounting hole 658 for providing an installation position for the abutting elastic member 654; the rotating groove 651 is connected to the mounting groove 652; the bushing 5 is provided with a limiting plate 51 corresponding to one of the second circular holes 32, the limiting plate 51 is provided with a first mark 511, and the second circular hole 32 is provided with a second mark 512 corresponding to the first mark 511; the slider 653 is provided with an abutting platform 6531 that abuts against the slider control structure; one end of the elastic reset member 7 is installed on the bushing 5, and the other end is installed on the baffle 1; the cross-sectional shape of the fixed shaft 4 is waist-shaped. It should be noted that the elastic reset member 7 in this application can be a torsion spring.

[0057] This invention, through the installation hole 658, ensures that when the slider 653 moves by compressing and abutting the elastic member 654, it will not slide relative to the elastic member 654, ensuring that the elastic member 654 can abut against the slider 653. Through the setting of the limiting plate 51, the bushing 5 is axially limited, so that after the limiting plate 51 contacts the bottom of the second circular hole 32, the bushing 5 can only move outward of the second circular hole 32. Through the setting of the first mark 511 and the second mark 512, the position of the baffle 1 and the bushing 5 is marked and indicated. When the first mark 511 and the second mark 512 correspond, it indicates that the rolling member 63 corresponds to the slider 653. At this time, the abutment of the slider 653 can be canceled by the rolling member control structure, so that the fixed shaft 4 can be separated from the rolling member 63, and the baffle 1 can be separated and disassembled from the fixed shaft 4.

[0058] See appendix Figure 1 and Figure 6 As shown, in this utility model, the slider control structure includes a first control cover plate 6551 mounted on the baffle 1, a through groove 6552 disposed on the first control cover plate 6551, a rotating plate 6553 located in the through groove 6552, a first rotating pin 6554 eccentrically disposed on the rotating plate 6553, and a first abutting plate 6555 disposed on the rotating plate 6553 and abutting against the abutting platform 6531. The first abutting plate 6555 can rotate eccentrically around the first rotating pin 6554. The first rotating pin 6554 is disposed on the baffle 1, and the first abutting plate 6555 is located in the mounting groove 652.

[0059] This invention, through the through slot 6552, connects the rotating plate 6553 to the outside, allowing the operator to rotate the plate 6553. The first rotating pin 6554 is eccentrically rotated. The first abutting plate 6555, in conjunction with the abutting platform 6531, limits or removes the limit on the slider 653. When the first abutting plate 6555 is on the abutting platform 6531, it prevents the slider 653 from pressing against the abutting elastic member 654. When the first abutting plate 6555 separates from the abutting platform 6531, the slider 653 can compress the abutting elastic member 654, causing the bushing 5 to separate from the fixed shaft 4.

[0060] See appendix Figure 1 — Figure 6 As shown, the usage process of this utility model is as follows:

[0061] First, install the bushing 5 in the mounting hole group 3 of the baffle 1; specifically, place the rolling element 63 into the movable hole 62, align the first mark 511 with the second mark 512, and insert the bushing 5 into the mounting rolling element 63 so that the limiting plate 51 on the bushing 5 engages with the second round hole 32 away from the chainsaw body 2. At this time, the rolling element 63 is located in the mounting groove 652. Then, install the limiting retaining ring 52 through the engagement of the locking block 521 and the rotating limiting groove 55. Next, fix the two ends of the bushing 5 by the engagement of the insert block 531 and the slot 54, so that the bushing 5 is connected to the baffle 1. Then, install the slider 653 and the abutting elastic element 654 so that the slider 653 abuts against the rolling element 63. Finally, install the slider control structure.

[0062] When it is necessary to install the baffle 1 on the chainsaw body 2, firstly, align the first mark 511 with the second mark 512, and release the contact with the slider 653 through the rolling element control structure, so that the rolling element 63 can push the slider 653 to move. Then, face the end face of the baffle 1 with the limiting ring 52 toward the chainsaw body, align the insertion hole 61 on the bushing 5 with the fixed shaft 4 and insert it. During the insertion of the fixed shaft 4, the first guide slope 41 on the fixed shaft 4 contacts the rolling element 63, causing the rolling element to move. The component 63 moves outward along the movable hole 62, and the rolling component 63 squeezes the slider 653. When the fixed shaft 4 is inserted to the specified depth, the rolling component 63 is no longer limited by the fixed shaft 4. It enters the limiting groove 64 by the elastic force of the abutting elastic component 654. Then, the rotating plate 6553 is rotated, so that the rotating plate 6553 drives the first abutting plate 6555 to rotate eccentrically around the first rotating pin 6554, so that the first abutting plate 6555 abuts and contacts the abutting platform 6531, thus completing the installation of the baffle 1.

[0063] When it is necessary to remove the baffle 1 from the chainsaw body 2, firstly, rotate the rotating plate 6553 so that the rotating plate 6553 drives the first abutting plate 6555 to rotate eccentrically around the first rotating pin 6554, so that the first abutting plate 6555 separates from the abutting platform 6531. Then, rotate the baffle 1 so that the first mark 511 and the second mark 512 correspond. Then, pull the baffle 1 outward. During the pulling process, the inclined surface on the limiting groove 64 guides the rolling element 63, so that the rolling element 63 moves outward from the movable hole 62 and squeezes the slider 653 until the baffle 1 separates from the fixed shaft 4.

[0064] In this invention, the entire disassembly process of the baffle 1 does not require the use of other tools, which facilitates the quick adjustment of the position of the baffle 1 and improves work efficiency.

[0065] Example 2

[0066] See appendix Figure 7As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the slider control structure includes a second rotating pin 6561 movably mounted on the baffle 1, a connecting part 6562 disposed on the second rotating pin 6561, a status plate 6563 disposed on the connecting part 6562, a control post 6564 disposed on the status plate 6563, a second abutting plate 6565 disposed on the connecting part 6562 and abutting against the abutting platform 6531, a second control cover plate 6566 mounted on the baffle 1, and a waist-shaped groove 6567 disposed on the second control cover plate 6566. The control post 6564 is located in the waist-shaped groove 6567. The control post 6564 can drive the second abutting plate 6565 to rotate around the second rotating pin 6561.

[0067] The operation process of the slider control structure in this embodiment is as follows: The operator rotates the control column 6564 in the waist-shaped groove 6567. The control column 6564 drives the connecting part 6562 to rotate around the second rotating pin 6561 through the status plate 6563. At the same time, the connecting part 6562 drives the second abutting plate 6565 to rotate around the second rotating pin 6561, so that the second abutting plate 6565 contacts and abuts the abutting table 6531 or cancels the abutment.

[0068] Compared to the above embodiments, this embodiment does not require an eccentric setting, which reduces the installation difficulty and facilitates the installation of the slider control structure.

[0069] Example 3

[0070] See appendix Figure 8 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the slider control structure includes a third rotating pin 6571 movably mounted on the baffle 1, a control elastic reset member 6572 fitted on the third rotating pin 6571, a third control plate 6573 movably mounted on the third rotating pin 6571, a control button 6574 mounted on one end of the third control plate 6573, a third abutting plate 6575 mounted on the other end of the third control plate 6573 and abutting against the abutting platform 6531, a third control cover plate 6576 mounted on the baffle 1, a button groove 6577 provided on the third control cover plate 6576 corresponding to the control button 6574, and one end of the control elastic reset member 6572 connected to the baffle 1 and the other end connected to the third control plate 6573.

[0071] The operation process of the slider control structure in this embodiment is as follows: The operator presses the control button 6574, which drives the third control plate 6573 to rotate around the third rotating pin 6571 and stores energy in the control elastic reset member 6572. At the same time, the third control plate 6573 drives the third abutting plate 6575 to separate from the abutting platform 6531, thus canceling the abutting limit between the third abutting plate 6575 and the abutting platform 6531. After releasing the control button 6574, the control elastic reset member 6572 will reset, and the third control plate 6573 will drive the third abutting plate 6575 to reset and abut.

[0072] Compared to the above embodiments, in this embodiment, after the control button 6574 is released, the third abutting plate 6575 will automatically reset and abut.

[0073] Example 4

[0074] See appendix Figure 9 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the rolling element control structure includes a groove 661 provided on the bushing 5, a limiting ring 662 movably installed in the groove 661 for limiting the rolling element 63, a slip ring 663 fitted on the bushing 5, a compression spring 664 in the second circular hole 32, and a rolling element button 665 installed in the second circular hole 32 away from the chainsaw body 2 and in contact with the slip ring 663; wherein, the opening of the second circular hole 32 is provided with a slot 321 adapted to the rolling element button 665, the rolling element button 665 is provided with a locking protrusion 666 adapted to the slot 321, and the rolling element button 665 is also provided with a deformation groove 667; the elastic reset element 7 is installed in the second circular hole 32 near the chainsaw body 2, and one end is installed on the baffle 1, and the other end is installed on the chainsaw body 2; it should be noted that the groove 661 is connected to the movable hole 62.

[0075] In this embodiment, the limiting retaining ring 662 is used to limit the rolling element 63, preventing it from separating from the movable hole 62 and facilitating the installation of the bushing 5 on the baffle 1. The compression spring 664 provides a reset force for the slip ring 663, ensuring that the slip ring 663 abuts against the rolling element button 665. It should be noted that the inner diameter of the slip ring 663 corresponds to that of the bushing 5, and the slip ring 663 has a groove corresponding to the limiting retaining ring 662. At the same time, the end face of the slip ring 663 facing the rolling element button 665 has a relief groove for the movement of the rolling element 63. The bayonet 321 and the locking protrusion 666 allow the rolling element button 665 to be installed on the baffle 1. The deformation groove 667 provides space for the deformation of the locking protrusion 666, ensuring that the locking protrusion 666 can engage with the bayonet 321.

[0076] The working process of this embodiment is as follows: The operator presses the rolling element button 665, and the rolling element button 665 moves inward along the second circular hole 32, pushing the slip ring 663 to move inward to compress the compression spring 664. At the same time, the limit on the rolling element 63 is released. At this time, part of the volume of the rolling element 63 can enter the clearance groove, and the baffle 1 can be installed and removed.

[0077] Example 5

[0078] See appendix Figure 10 — Figure 12 As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the connecting structure 6 includes a baffle lock 601 installed on the fixed shaft 4 via a threaded connection, a baffle cover 602 installed on the fixed shaft 4 and located between the baffle lock 601 and the chainsaw body 2, and the baffle cover 602 connected to the bushing 5 by screws. The baffle 1 is located between the baffle cover 602 and the chainsaw body 2. It should be noted that the fixed shaft 4 can be fixedly installed on the chainsaw body 2 by an embedded method; the connecting component is a screw; a limit stop 604 is installed on the bushing 5, and a limit protrusion 605 corresponding to the limit stop 604 is installed on the chainsaw body 2. The limit stop 604 is connected to the baffle cover 602 via a connecting component, and an elastic reset component 7 is installed between the baffle 1 and the bushing 5.

[0079] In this embodiment, the threaded connection between the baffle lock 601 and the fixed shaft 4 facilitates the assembly and disassembly of the baffle lock 601 and the fixed shaft 4; the rotation angle of the baffle 1 can be limited by the setting of the limiting block 604 and the limiting protrusion 605.

[0080] This embodiment has a simpler structure compared to the embodiments described above.

[0081] Example 6

[0082] See appendix Figure 13 and Figure 14As shown, the difference between this embodiment and the above embodiment is that, in this embodiment, the connecting structure 6 includes a connecting knob 6a that is threadedly connected to one end of the fixed shaft 4; the connecting knob 6a abuts against one end of the bushing 5; one end of the elastic reset member 7 is installed on the bushing 5, and the other end is installed on the baffle 1; wherein, a limiting retaining ring 52 corresponding to another second circular hole 32 is rotatably installed on the bushing 5, and a retaining ring 53 is installed on the bushing 5 for axially fixing the limiting retaining ring 52; the bushing 5 is provided with a slot 54 and a rotating limiting groove 55, the rotating limiting groove 55 is connected to the slot 54 and is arranged in an L-shape; the retaining ring 53 is provided with a plug 531 that is adapted to the slot 54; the limiting retaining ring 52 is provided with a retaining block 521 that is adapted to the rotating limiting groove 55, the retaining block 521 can enter the rotating limiting groove 55 through the slot 54. It should be noted that the end of the fixed shaft 4 away from the bushing 5 is embedded in the chainsaw body 2.

[0083] In this embodiment, the baffle 1 can be disassembled and assembled by rotating the connecting knob 6a.

[0084] 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 quick-release mechanism for a chainsaw baffle, comprising a baffle (1) and a chainsaw body (2), characterized in that, It also includes a fixed shaft (4), a bushing (5), a connecting structure (6), and an elastic reset component (7); The fixed shaft (4) is installed on the chainsaw body (2) and connected to the bushing (5); The bushing (5) is movably mounted on the baffle (1), and the bushing (5) provides the rotation center for the baffle (1); The connecting structure (6) is used to detachably connect the bushing (5), the fixed shaft (4) and the baffle (1), axially fix the baffle (1), and allow the baffle (1) to move circumferentially around the bushing (5). The connecting structure (6) can install the baffle (1) on the fixed shaft (4) or remove it from the fixed shaft (4) by pressing or rotating. One end of the elastic reset component (7) is mounted on the baffle (1) to drive the baffle (1) to reset and rotate, and the other end is mounted on the chainsaw body (2) or the bushing (5).

2. The quick-release mechanism for the chainsaw baffle according to claim 1, characterized in that, The connection structure (6) includes an insertion hole (61) adapted to the fixed shaft (4) at the center of the bushing (5), a movable hole (62) on the bushing (5), a rolling element (63) movably installed in the movable hole (62), a limiting groove (64) adapted to the rolling element (63) on the fixed shaft (4), and a rolling element control structure that abuts against the rolling element (63); The movable hole (62) is connected to the insertion hole (61). After the fixed shaft (4) is inserted into the insertion hole (61), the movable hole (62) is connected to the limiting groove (64). The rolling element (63) can enter the limiting groove (64) through the movable hole (62). The diameter of the connection between the movable hole (62) and the insertion hole (61) is smaller than the diameter of the movable hole (62). The fixed shaft (4) is provided with a first guide slope (41) at the end away from the chainsaw body (2); The baffle (1) is provided with a mounting hole group (3), which includes a first circular hole (31) and a second circular hole (32) provided at the openings at both ends of the first circular hole (31). The diameter of the second circular hole (32) is larger than the diameter of the first circular hole (31). The bushing (5) is located inside the first circular hole (31).

3. The quick-release mechanism for the chainsaw baffle according to claim 1, characterized in that, The connection structure (6) includes a connection knob (6a) that is threadedly installed on one end of the fixed shaft (4). The connecting knob (6a) abuts against one end of the bushing (5); One end of the elastic reset member (7) is mounted on the bushing (5), and the other end is mounted on the baffle (1).

4. The quick-release mechanism for the chainsaw baffle according to claim 2 or 3, characterized in that, A retaining ring (52) corresponding to another second round hole (32) is rotatably mounted on the bushing (5), and a retaining ring (53) is mounted on the bushing (5) for axially fixing the retaining ring (52). The bushing (5) is provided with a slot (54) and a rotation limiting groove (55); The retaining ring (53) is provided with a plug (531) that is compatible with the slot (54); The limiting ring (52) is provided with a locking block (521) that is adapted to the rotating limiting groove (55). The locking block (521) can enter the rotating limiting groove (55) through the slot (54).

5. The quick-release mechanism for the chainsaw baffle according to claim 2, characterized in that, The rolling element control structure includes a rotating groove (651) adapted to the rolling element (63) in the first circular hole (31), an installation groove (652) on the side wall of the first circular hole (31), a slider (653) located in the installation groove (652) and in close contact with the outer wall of the bushing (5), an abutting elastic element (654) abutting against the slider (653), and a slider control structure for abutting against the slider (653), which is installed on the baffle (1). The other end of the abutting elastic member (654) is in contact with the bottom of the mounting groove (652); The slider (653) is provided with a mounting hole (658) for providing an installation position for the abutting elastic member (654). The rotating groove (651) is connected to the mounting groove (652); The bushing (5) is provided with a limiting plate (51) corresponding to one of the second circular holes (32); The slider (653) is provided with an abutment platform (6531) that abuts against the slider control structure. One end of the elastic reset member (7) is mounted on the bushing (5), and the other end is mounted on the baffle (1); The cross-sectional shape of the fixed shaft (4) is waist-shaped.

6. The quick-release mechanism for the chainsaw baffle according to claim 5, characterized in that, The slider control structure includes a first control cover plate (6551) mounted on a baffle (1), a through groove (6552) disposed on the first control cover plate (6551), a rotating plate (6553) located in the through groove (6552), a first rotating pin (6554) eccentrically disposed on the rotating plate (6553), and a first abutting plate (6555) disposed on the rotating plate (6553) and abutting against the abutting platform (6531). The first abutting plate (6555) can rotate eccentrically around the first rotating pin (6554). The first rotating pin (6554) is disposed on the baffle (1), and the first abutting plate (6555) is located in the mounting groove (652).

7. The quick-release mechanism for the chainsaw baffle according to claim 5, characterized in that, The slider control structure includes a second rotating pin (6561) movably mounted on the baffle (1), a connecting part (6562) disposed on the second rotating pin (6561), a status plate (6563) disposed on the connecting part (6562), a control column (6564) disposed on the status plate (6563), a second abutting plate (6565) disposed on the connecting part (6562) and abutting against the abutting platform (6531), a second control cover plate (6566) mounted on the baffle (1), and a waist-shaped groove (6567) disposed on the second control cover plate (6566). The control column (6564) is located in the waist-shaped groove (6567). The control column (6564) can drive the second abutting plate (6565) to rotate around the second rotating pin (6561).

8. The quick-release mechanism for the chainsaw baffle according to claim 5, characterized in that, The slider control structure includes a third rotating pin (6571) movably mounted on the baffle (1), a control elastic reset member (6572) fitted on the third rotating pin (6571), a third control plate (6573) movably mounted on the third rotating pin (6571), a control button (6574) mounted on one end of the third control plate (6573), a third abutting plate (6575) mounted on the other end of the third control plate (6573) and abutting against the abutting platform (6531), a third control cover plate (6576) mounted on the baffle (1), and a button slot (6577) on the third control cover plate (6576) corresponding to the control button (6574). One end of the control elastic reset member (6572) is connected to the baffle (1), and the other end is connected to the third control plate (6573).

9. The quick-release mechanism for the chainsaw baffle according to claim 2, characterized in that, The rolling element control structure includes a slot (661) on the bushing (5), a limiting ring (662) movably installed in the slot (661) for limiting the rolling element (63), a slip ring (663) fitted on the bushing (5), a compression spring (664) in the second round hole (32), and a rolling element button (665) installed in the second round hole (32) away from the chainsaw body (2) and in contact with the slip ring (663). The second circular hole (32) has a slot (321) adapted to the rolling button (665) at the opening. The rolling button (665) has a locking protrusion (666) adapted to the slot (321). The rolling button (665) also has a deformation groove (667). The elastic reset member (7) is installed in the second round hole (32) near the chainsaw body (2), with one end installed on the baffle (1) and the other end installed on the chainsaw body (2).

10. The quick-release mechanism for the chainsaw baffle according to claim 1, characterized in that, The connection structure (6) includes a baffle lock (601) installed on the fixed shaft (4) by a threaded connection, a baffle cover (602) installed on the fixed shaft (4) and located between the baffle lock (601) and the chainsaw body (2), and the baffle cover (602) is connected to the bushing (5), and the baffle (1) is located between the baffle cover (602) and the chainsaw body (2).

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