A high protection four-stroke gasoline engine chain saw
By designing an eccentric component and a fixed block structure in a four-stroke gasoline engine chainsaw, the problems of high fuel consumption, emissions pollution, and jamming of connecting parts in traditional chainsaws have been solved, achieving efficient and reliable power transmission.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHONGER MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional two-stroke gasoline engine chainsaws suffer from high fuel consumption, serious emissions pollution, and insufficient power, while four-stroke gasoline engine chainsaws are prone to jamming during the stroke.
A highly protective four-stroke gasoline engine chainsaw was designed. By setting an eccentric part and a fixing block on the clamp, the pusher cylinder pushes the clamp to drive the gear to rotate, thereby realizing the transmission of the chainsaw and optimizing the structural design.
It achieves efficient cutting with chainsaws, avoids jamming of connecting parts, and improves the reliability and efficiency of power transmission.
Smart Images
Figure CN224487835U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gasoline engine chainsaws, specifically a highly protective four-stroke gasoline engine chainsaw. Background Technology
[0002] Chainsaws are widely used as efficient cutting tools in forestry, horticulture, and rescue operations. Traditional two-stroke gasoline engine chainsaws once dominated the market due to their simple structure and light weight. However, two-stroke gasoline engine chainsaws suffer from high fuel consumption, severe emissions, and insufficient power, making it difficult to meet increasingly stringent environmental requirements and the demands for high-efficiency operations.
[0003] Four-stroke gasoline engine chainsaws have significant advantages over two-stroke gasoline engine chainsaws, but the connection parts lack power protection during the stroke, making them prone to jamming. Utility Model Content
[0004] The purpose of this invention is to provide a highly protective four-stroke gasoline engine chainsaw to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A highly protective four-stroke gasoline engine chainsaw includes a chainsaw, an elbow support fixedly connected to the rear of the chainsaw, a chain wheel mounted on the inner frame drive section of the chainsaw, a mounting cylinder mounted on the side of the chainsaw, the mounting cylinder and the chain wheel being on the same horizontal plane, a cavity fixedly connected to the outer wall of the mounting cylinder, a nut mounted on the top axial center of the mounting cylinder, a handle mounted on the top outer side of the mounting cylinder, a chain saw drivenly connected to the outer wall of the chain wheel, a front axle provided on the inner side of the chainsaw, and the rear end of the front axle fixedly connected to the front end of the chainsaw.
[0007] As a further embodiment of this utility model: a top plate is installed at the top of the inner cavity of the mounting cylinder, and a bearing is installed at the axial part of the upper surface of the top plate.
[0008] As a further embodiment of this utility model: the bearing is rotatably connected to a rotating shaft at its axial center, an outer cylinder is fixedly connected to the outer wall of the rotating shaft, and a gear is fixedly connected to the outer wall of the outer cylinder.
[0009] As a further embodiment of this utility model: a clamp is provided on the upper part of the second gear, the clamp is installed with the outer cylinder, the outer wall of the second gear is meshed with the first gear, and a chain wheel is provided on the bottom shaft of the first gear, the chain wheel is fixedly connected to the bottom shaft of the first gear.
[0010] As a further embodiment of this utility model: the upper and lower surfaces of the clamp are fixedly connected with an eccentric component one and an eccentric component two, and a fixing block is fixedly connected to one end of the eccentric component one and the eccentric component two.
[0011] As a further improvement of this utility model: a connecting rod is installed at one end of the clamp, and a push cylinder is hinged to one end of the connecting rod, and a cavity is provided on the outside of the push cylinder.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] In this utility model, the eccentric parts 1 and 2 connected to the upper and lower parts of the clamp cooperate with the fixed block. Under the push of the pusher, the clamp will drive the rotation of gear 2 through eccentric part 2. Gear 1, which meshes with the outer wall of gear 2, will also rotate. A chain wheel is added to the bottom of gear 1 to drive the chain saw installed on the outer wall of the front axle to achieve cutting. Its structure is more optimized and its design is more reasonable. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of a highly protective four-stroke gasoline engine chainsaw.
[0015] Figure 2 This is an assembly drawing of a highly protective four-stroke gasoline engine chainsaw.
[0016] Figure 3 This is a diagram showing the internal structure of the mounting cylinder in a highly protective four-stroke gasoline engine chainsaw.
[0017] Figure 4 This is a diagram showing the connection structure of the clamps and components in a high-protection four-stroke gasoline engine chainsaw.
[0018] In the diagram: Elbow support 1, Mounting cylinder 2, Handle 3, Chainsaw 4, Front axle 5, Chain saw 6, Chain wheel 7, Top plate 8, Push cylinder 9, Cavity cylinder 10, Gear 1 11, Gear 2 12, Outer cylinder 13, Shaft 14, Clamp 15, Nut 16, Bearing 17, Eccentric part 1 18, Eccentric part 2 19, Fixing block 20. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figures 1-4In this embodiment of the present invention, a highly protective four-stroke gasoline engine chainsaw includes a chainsaw 4, an elbow support 1 fixedly connected to the rear part of the chainsaw 4, a chain wheel 7 installed on the inner frame drive part of the chainsaw 4, an mounting cylinder 2 installed on the side of the chainsaw 4, the mounting cylinder 2 and the chain wheel 7 being on the same horizontal plane, a cavity cylinder 10 fixedly connected to the outer wall of the mounting cylinder 2, a nut 16 installed on the top axial part of the mounting cylinder 2, a handle 3 installed on the top outer side of the mounting cylinder 2, a chain saw 6 being drivenly connected to the outer wall of the chain wheel 7, a front axle 5 being provided on the inner side of the chain saw 6, and the rear end of the front axle 5 being fixedly connected to the front end of the chainsaw 4.
[0021] A top plate 8 is installed at the top of the inner cavity of the mounting cylinder 2, and a bearing 17 is installed at the axial part of the upper surface of the top plate 8.
[0022] The bearing 17 is rotatably connected to the shaft 14, the outer wall of the shaft 14 is fixedly connected to the outer cylinder 13, and the outer wall of the outer cylinder 13 is fixedly connected to the gear 12.
[0023] A clamp 15 is provided on the upper part of gear 2 12. The clamp 15 is installed with the outer cylinder 13. Gear 1 11 meshes with the outer wall of gear 2 12. A chain wheel 7 is provided on the bottom shaft of gear 1 11. The chain wheel 7 is fixedly connected to the bottom shaft of gear 1 11.
[0024] The upper and lower surfaces of the clamp 15 are fixedly connected with eccentric component 18 and eccentric component 29, and a fixing block 20 is fixedly connected to one end of eccentric component 18 and eccentric component 29.
[0025] One end of the clamp 15 is fitted with a connecting rod, and one end of the connecting rod is hinged to a push cylinder 9. A cavity 10 is provided on the outside of the push cylinder 9.
[0026] The working principle of this utility model is as follows:
[0027] When in use, the hydraulic cylinder engages with the push cylinder 9, which will push the push cylinder 9 to move within the cavity of the chamber 10. As the push cylinder 9 moves downward within the cavity of the chamber 10, it will drive the push control of the clamp 15 hinged at the bottom of the push cylinder 9. The clamp 15 is connected to the outer cylinder 13, so the outer cylinder 13 will rotate during the push of the clamp 15, thereby achieving rotation control of the gear 12.
[0028] Specifically: The eccentric parts 18 and 19 connected to the upper and lower parts of the clamp 15 cooperate with the fixing block 20, so that under the push of the pusher 9, the clamp 15 will drive the gear 12 to rotate through the eccentric part 19.
[0029] Gear 11, which meshes with the outer wall of gear 2 12, will also rotate, and through the addition of chain wheel 7 at the bottom of gear 11, it will drive the chain saw 6 mounted on the outer wall of the front axle 5 to achieve cutting.
[0030] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A highly protective four-stroke gasoline engine chainsaw, comprising a chainsaw (4), characterized in that: An elbow support (1) is fixedly connected to the rear part of the chainsaw (4). A chain wheel (7) is installed on the inner frame drive part of the chainsaw (4). An installation cylinder (2) is installed on the side of the chainsaw (4). The installation cylinder (2) and the chain wheel (7) are on the same horizontal plane. A cavity cylinder (10) is fixedly connected to the outer wall of the installation cylinder (2). A nut (16) is installed on the top axis of the installation cylinder (2). A handle (3) is installed on the top outer side of the installation cylinder (2). A chain saw (6) is drivenly connected to the outer wall of the chain wheel (7). A front axle (5) is provided on the inner side of the chain saw (6). The rear end of the front axle (5) is fixedly connected to the front end of the chainsaw (4).
2. The high-protection four-stroke gasoline engine chainsaw according to claim 1, characterized in that: A top plate (8) is installed at the top of the inner cavity of the mounting cylinder (2), and a bearing (17) is installed at the axial part of the upper surface of the top plate (8).
3. A high-protection four-stroke gasoline engine chainsaw according to claim 2, characterized in that: The bearing (17) is rotatably connected to a rotating shaft (14), and an outer cylinder (13) is fixedly connected to the outer wall of the rotating shaft (14). A gear (12) is fixedly connected to the outer wall of the outer cylinder (13).
4. A highly protective four-stroke gasoline engine chainsaw according to claim 3, characterized in that: The upper part of the second gear (12) is provided with a clamp (15), the clamp (15) is installed with the outer cylinder (13), the outer wall of the second gear (12) is meshed with the first gear (11), the bottom shaft of the first gear (11) is provided with a chain wheel (7), and the chain wheel (7) is fixedly connected to the bottom shaft of the first gear (11).
5. A high-protection four-stroke gasoline engine chainsaw according to claim 4, characterized in that: The upper and lower surfaces of the clamp (15) are fixedly connected with an eccentric component one (18) and an eccentric component two (19), and a fixing block (20) is fixedly connected to one end of the eccentric component one (18) and the eccentric component two (19).
6. A high-protection four-stroke gasoline engine chainsaw according to claim 4, characterized in that: One end of the clamp (15) is equipped with a connecting rod, and one end of the connecting rod is hinged to a push cylinder (9). The outside of the push cylinder (9) is provided with a cavity (10).