Lightweight chain saw with protection mechanism

By designing upper and lower protective components on the chainsaw and utilizing the cooperation of limit slides and locking slots, the problem of chain rebound or breakage is solved, thereby improving safety and dust prevention.

CN224074555UActive Publication Date: 2026-04-03ANHUI QIANSAO MACHINERY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

When operating a chainsaw, the chain may spring back or break, causing injury to the user.

Method used

A lightweight chainsaw with a protective mechanism has been designed, including an upper protective component and a lower protective component. Through the cooperation of a limiting slide and a locking groove, the upper and lower parts of the chainsaw are covered to prevent the chainsaw from springing back or breaking.

Benefits of technology

It effectively prevents the saw chain from springing back or breaking during operation, improving safety and providing all-around protection for the saw chain when not in use, with good dustproof effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of chain saws, in particular to a light-weight chain saw with a protection mechanism. According to the technical scheme, the chain saw comprises a chain saw body, a grip is fixedly installed on the outer wall of the chain saw body, a guide plate is arranged on the front face of the chain saw body, a saw chain is arranged on the guide plate, an installation assembly is fixedly installed on the front face of the chain saw body, and an upper protection assembly is slidably installed on the front face of the installation assembly and covers the guide plate and the saw chain. A lower protection assembly is installed on the front face of the installation assembly in a clamped mode, and the lower protection assembly is matched with the upper protection assembly and covers the lower portion of the guide plate and the saw chain. When the chain saw is used, the upper protection cover covers the periphery of the saw chain to prevent the saw chain from rebounding or breaking to hurt people, and when the chain saw is not used, the upper protection cover and the lower protection cover cover the periphery of the saw chain to perform dustproof protection on the saw chain.
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Description

Technical Field

[0001] This utility model relates to the field of chainsaw technology, and in particular to a lightweight chainsaw with a protective mechanism. Background Technology

[0002] A chainsaw is a hand-held saw powered by a gasoline engine, mainly used for logging and material manufacturing. Its working principle relies on the lateral movement of the L-shaped blades on the saw chain to complete the cutting action, and it is often used for garden pruning.

[0003] In the prior art, patent publication number CN217195831U discloses a portable chainsaw, including a chainsaw with a fixing mechanism on its surface, a guide plate mounted on one side of the chainsaw, a protective mechanism on one side of the chainsaw, and a safety mechanism on another side of the chainsaw. This portable chainsaw, through the arrangement of a belt and bolts, with the belt passing through a threaded hole, allows the chainsaw to be connected to the belt, facilitating carrying and use of the chainsaw via the belt and improving the device's usability. Furthermore, the arrangement of a positioning pin, a bumper plate, and a locking hole allows the bumper plate to be connected to the chainsaw via a sliding connection between a slider and a groove, which helps protect the guide plate and improves the protection of the chainsaw. Simultaneously, the arrangement of a locking pin, a protective plate, and a locking groove allows the protective plate to be inserted into a limiting hole via a positioning rod, facilitating connection between the protective plate and the chainsaw and improving safety during use.

[0004] While the aforementioned portable chainsaws can provide protection through features such as locking pins, protective plates, and locking slots, they still have the following shortcomings in practical applications: during operation, the chainsaw chain may spring back or break, ejecting from the gaps cut in the tree and causing injury to the user. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a lightweight chainsaw with a protective mechanism.

[0006] To achieve this objective, the present invention adopts the following technical solution: a lightweight chainsaw with a protective mechanism, comprising a chainsaw body, a handle fixedly installed on the outer wall of the chainsaw body, a guide plate provided on the front of the chainsaw body, a saw chain provided on the guide plate, an installation component fixedly installed on the front of the chainsaw body, an upper protective component slidably installed on the front of the installation component, and the upper protective component covering the guide plate and the saw chain, and a lower protective component engagingly installed on the front of the installation component, and the lower protective component cooperating with the upper protective component and covering the bottom of the guide plate and the saw chain.

[0007] Preferably, the mounting assembly includes a mounting plate fixedly mounted on the front of the chainsaw body, a vibration damping pad fixedly mounted at the connection between the rear side of the mounting plate and the front of the chainsaw body, and an opening on the front of the mounting plate through which the guide plate and the saw chain pass.

[0008] Preferably, the mounting plate has two limiting grooves and two snap-fit ​​grooves on its front side.

[0009] Preferably, the upper protective component includes an upper protective cover, and two limiting slide plates are fixedly installed on the rear side of the upper protective cover, and the limiting slide plates are slidably connected to the limiting slide groove.

[0010] Preferably, the upper protective cover has engaging grooves on its bottom front side and bottom left and right sides.

[0011] Preferably, the lower protective assembly includes a lower protective cover, and two snap-fit ​​plates are fixedly installed on the rear side of the lower protective cover, and the snap-fit ​​plates are engaged with the snap-fit ​​grooves.

[0012] Preferably, the lower protective cover is fixedly installed with locking blocks on the top front side and the top left and right sides, and the locking blocks match the locking grooves.

[0013] The beneficial effects of this utility model are as follows: When using this device, first remove the lower protective cover that is clipped onto the mounting plate and the upper protective cover. The upper protective cover can then slide on the mounting plate. When the saw chain cuts the tree, the bottom of the saw chain starts to cut from the side of the tree, and the bottom of the upper protective cover will abut against the side of the tree. As the saw chain continues to cut to the other side, the upper protective cover slides on the mounting plate through the cooperation of the limiting slide plate and the limiting slide groove, and always abuts against the side of the tree, preventing the saw chain from rebounding or breaking and causing injury. Through these settings, this device allows the upper protective cover to cover the outside of the saw chain when the chainsaw is in operation, preventing injury. The chainsaw may spring back or break, causing injury. When the chainsaw is not in use, insert the locking plate into the locking slot to lock the lower protective cover onto the mounting plate, thus covering and protecting the lower part of the guide plate and chainsaw. Then slide the upper protective cover onto the mounting plate, causing multiple locking slots to engage with locking blocks, thereby locking the upper protective cover onto the lower protective cover and restricting its sliding on the mounting plate. This provides comprehensive protection for the guide plate and upper part of the chainsaw, offering all-around protection for both. Through these features, the device can cover the chainsaw with the upper and lower protective covers when the chainsaw is not in use, providing dust protection. Attached Figure Description

[0014] Figure 1 This is a front view of the overall structure of an embodiment of the lightweight chainsaw with a protective mechanism according to this utility model;

[0015] Figure 2This is a schematic diagram of the overall structure of the upper protective component and the mounting component in the disassembled state in an embodiment of a lightweight chainsaw with a protective mechanism according to this utility model.

[0016] Figure 3 This is a schematic diagram of the overall structure of the lower and upper protective components and the mounting components in the disassembled state of an embodiment of a lightweight chainsaw with a protective mechanism according to this utility model.

[0017] Reference numerals: 1. Chainsaw body; 11. Handle; 12. Guide plate; 13. Chainsaw; 2. Mounting assembly; 21. Mounting plate; 22. Limiting slide; 23. Snap-fit ​​groove; 24. Vibration damping pad; 25. Through port; 3. Upper protection assembly; 31. Upper protective cover; 32. Limiting slide plate; 33. Snap-fit ​​groove; 4. Lower protection assembly; 41. Lower protective cover; 42. Snap-fit ​​plate; 43. Snap-fit ​​block. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0022] Example 1

[0023] like Figure 1-3 As shown, the present invention proposes a lightweight chainsaw with a protective mechanism, comprising a chainsaw body 1, a handle 11 fixedly installed on the outer wall of the chainsaw body 1, a guide plate 12 provided on the front of the chainsaw body 1, a saw chain 13 provided on the guide plate 12, an installation component 2 fixedly installed on the front of the chainsaw body 1, an upper protective component 3 slidably installed on the front of the installation component 2, and the upper protective component 3 covering the guide plate 12 and the saw chain 13, and a lower protective component 4 engagingly installed on the front of the installation component 2, and the lower protective component 4 cooperating with the upper protective component 3 and covering the bottom of the guide plate 12 and the saw chain 13.

[0024] In this embodiment: the mounting assembly 2 includes a mounting plate 21 fixedly mounted on the front of the chainsaw body 1. A vibration damping pad 24 is fixedly mounted at the connection between the rear side of the mounting plate 21 and the front of the chainsaw body 1. The front of the mounting plate 21 has an opening 25, through which the guide plate 12 and the saw chain 13 pass. This arrangement allows the vibration damping pad 24 to absorb some of the vibration generated by the chainsaw body 1 during operation, reducing the vibration transmitted to the mounting plate 21, thereby reducing the impact of vibration on the upper protective assembly 3. The opening 25 prevents the mounting plate 21 from directly colliding with the guide plate 12 and the saw chain 13, thus affecting their operation. The front of the mounting plate 21 has two limiting grooves 22 and two snap-fit ​​grooves 23. This arrangement allows the mounting plate 21 to be connected to the upper protective assembly 3 and the lower protective assembly 4 respectively through the limiting grooves 22 and the snap-fit ​​grooves 23. The upper protective assembly 3 includes an upper protective cover 31, with two... Each limiting slide plate 32 is slidably connected to the limiting slide groove 22. This configuration allows the upper protective cover 31 to be mounted on the mounting plate 21 via the two limiting slide plates 32 and slidably connected to the two limiting slide grooves 22 on the front of the mounting plate 21. This allows the upper protective cover 31 to slide along the limiting slide grooves 22. When the saw chain 13 cuts the tree, the bottom of the saw chain 13 cuts from the side of the tree, and the bottom of the upper protective cover 31 will abut against the side of the tree. As the saw chain 13 cuts towards the other side, the upper protective cover 31 slides on the mounting plate 21 through the cooperation of the limiting slide plates 32 and the limiting slide grooves 22, and always abuts against the side of the tree, preventing the saw chain 13 from rebounding or breaking and injuring people. The bottom front side and the bottom left and right sides of the upper protective cover 31 are provided with locking grooves 33. This configuration allows the upper protective cover 31 to be locked with the lower protective component 4 through the locking grooves 33.

[0025] Example 2

[0026] like Figure 1-3 As shown, the lightweight chainsaw with a protective mechanism proposed in this utility model, compared with Embodiment 1, further includes a lower protective component 4 comprising a lower protective cover 41. Two snap-fit ​​plates 42 are fixedly installed on the rear side of the lower protective cover 41, and the snap-fit ​​plates 42 are engaged with snap-fit ​​grooves 23. This arrangement allows the lower protective cover 41 to be snapped onto the mounting plate 21 when the chainsaw is not in use, by inserting the snap-fit ​​plates 42 into the snap-fit ​​grooves 23, thereby covering and protecting the guide plate 12 and the saw chain 13. The lower part; the top front side and the top left and right sides of the lower protective cover 41 are fixedly installed with locking blocks 43, and the locking blocks 43 match the locking grooves 33. With this setting, when the chainsaw is not used, after the lower protective cover 41 is locked onto the mounting plate 21, the upper protective cover 31 is slid onto the mounting plate 21 and then onto the lower protective cover 41, so that multiple locking grooves 33 are locked onto the locking blocks 43, thereby locking the upper protective cover 31 onto the lower protective cover 41 and restricting the upper protective cover 31 from sliding on the mounting plate 21.

[0027] Working principle: When using this device, first remove the lower protective cover 41, which is clipped onto the mounting plate 21 and the upper protective cover 31. The upper protective cover 31 can then slide on the mounting plate 21. When the saw chain 13 cuts the tree, the bottom of the saw chain 13 starts to cut from the side of the tree, and the bottom of the upper protective cover 31 will abut against the side of the tree. As the saw chain 13 continues to cut to the other side, the upper protective cover 31 slides on the mounting plate 21 through the cooperation of the limiting slide plate 32 and the limiting slide groove 22, and always abuts against the side of the tree to prevent the saw chain 13 from springing back or breaking. To prevent injury, when the chainsaw is not in use, insert the snap-fit ​​plate 42 into the snap-fit ​​groove 23 to snap the lower protective cover 41 onto the mounting plate 21, thereby covering and protecting the lower part of the guide plate 12 and the saw chain 13. Then slide the upper protective cover 31 onto the mounting plate 21 and onto the lower protective cover 41, so that multiple snap-fit ​​grooves 33 engage with the snap-fit ​​blocks 43, thereby snapping the upper protective cover 31 onto the lower protective cover 41 and restricting the sliding of the upper protective cover 31 on the mounting plate 21, thus protecting the upper part of the guide plate 12 and the saw chain 13, and providing all-round protection for the guide plate 12 and the saw chain 13.

[0028] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A lightweight chainsaw with a protective mechanism, comprising a chainsaw body (1), characterized in that: A handle (11) is fixedly installed on the outer wall of the chainsaw body (1). A guide plate (12) is provided on the front of the chainsaw body (1). A saw chain (13) is provided on the guide plate (12). An installation component (2) is fixedly installed on the front of the chainsaw body (1). An upper protective component (3) is slidably installed on the front of the installation component (2). The upper protective component (3) covers the guide plate (12) and the saw chain (13). A lower protective component (4) is engaged on the front of the installation component (2). The lower protective component (4) cooperates with the upper protective component (3) and covers the bottom of the guide plate (12) and the saw chain (13).

2. A lightweight chainsaw with a protective mechanism according to claim 1, characterized in that, The mounting assembly (2) includes a mounting plate (21) fixedly mounted on the front of the chainsaw body (1). A vibration damping pad (24) is fixedly mounted on the rear side of the mounting plate (21) at the connection between the front of the chainsaw body (1). An opening (25) is provided on the front of the mounting plate (21), and the guide plate (12) and the saw chain (13) pass through the opening (25).

3. A lightweight chainsaw with a protective mechanism according to claim 2, characterized in that, The mounting plate (21) has two limiting grooves (22) and two snap-fit ​​grooves (23) on its front side.

4. A lightweight chainsaw with a protective mechanism according to claim 3, characterized in that, The upper protective component (3) includes an upper protective cover (31), and two limiting slide plates (32) are fixedly installed on the rear side of the upper protective cover (31), and the limiting slide plates (32) are slidably connected to the limiting slide groove (22).

5. A lightweight chainsaw with a protective mechanism according to claim 4, characterized in that, The upper protective cover (31) has engagement grooves (33) on the bottom front side and the bottom left and right sides.

6. A lightweight chainsaw with a protective mechanism according to claim 5, characterized in that, The lower protective component (4) includes a lower protective cover (41), and two snap-fit ​​plates (42) are fixedly installed on the rear side of the lower protective cover (41), and the snap-fit ​​plates (42) are engaged with the snap-fit ​​groove (23).

7. A lightweight chainsaw with a protective mechanism according to claim 6, characterized in that, The lower protective cover (41) is fixedly installed with locking blocks (43) on the top front side and the top left and right sides, and the locking blocks (43) match the locking grooves (33).

Citation Information

Patent Citations

  • Chain saw convenient to carry and use

    CN217195831U