Starter assembly for chain saw

Abstract

The starter assembly for the chain saw comprises a device shell, a rope wheel and a pulling end, and a circular cavity is formed in the back face of the device shell; the rope wheel is rotationally connected into the circular cavity; the pulling end comprises a connecting rope, a connecting handle, an extending end and a positioning end; one end of the connecting rope is connected with the rope wheel, the other end of the connecting rope is in threaded connection with the lower end of the connecting handle through an assembling end, an extending end capable of moving outwards is arranged in the connecting handle, the upper end of the connecting handle is elastically connected with the positioning end, and the positioning end is used for controlling the extending length of the extending end. The beneficial effect of the utility model is that the technical problem that the starting handle of the starter in the prior art cannot be suitable for different users because the length of the handle cannot be adaptively adjusted according to the actual situation is solved.

Description

Technical Field

[0001] This utility model relates to the field of starter assembly technology, specifically to a starter assembly for chainsaws. Background Technology

[0002] A chainsaw is a handheld wood-cutting machine powered by a gasoline engine and with a saw chain as the cutting component. It is widely used in forestry production for logging, pruning, and timber processing. When starting a chainsaw, the operator pulls the starter handle, which drives the winding wheel to rotate via the starter rope. The winding wheel then drives the crankshaft of the gasoline engine to rotate, thereby starting and igniting the gasoline engine.

[0003] However, the starting handle of existing chainsaw starters cannot be adjusted in length according to the user's actual situation. This makes it inconvenient to pull the handle when it is too small and the user has a large hand, which reduces the working efficiency of the starting handle. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a starter assembly for chainsaws, solving the technical problem that the starter handle of the existing starter cannot be adaptively adjusted according to the actual situation, resulting in it being unsuitable for different users.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model provides a starter assembly for a chainsaw, comprising:

[0007] The container shell has a circular cavity on its back side;

[0008] A rope pulley, which is rotatably connected within the circular cavity;

[0009] The pulling end includes a connecting rope, a connecting handle, an extension end, and a positioning end; one end of the connecting rope is connected to the rope wheel, and the other end is threadedly connected to the lower end of the connecting handle through an assembly end; the connecting handle has an extension end that can move outward, and the upper end of the connecting handle is elastically connected to the positioning end, which is used to control the extension length of the extension end.

[0010] In some embodiments, the connecting handle has an internal movable chamber, the bottom wall of which has a groove, and an extension end is slidably connected within the groove.

[0011] In some embodiments, the extension end includes a first extension tube and a second extension tube; the first extension tube and the second extension tube are slidably connected to the movable chamber, respectively.

[0012] In some embodiments, the lower ends of both the first extension cylinder and the second extension cylinder are fixed with sliders that cooperate with the slide groove.

[0013] In some embodiments, both the first extension cylinder and the second extension cylinder have hollow interiors, and both the first extension cylinder and the second extension cylinder have positioning holes at their upper ends that mate with the positioning end.

[0014] In some embodiments, an extension block is fixed to one of the opposite ends of the first extension tube and the second extension tube.

[0015] In some embodiments, the positioning end includes a horizontal bar, a vertical bar, a disc, and a spring strip; the horizontal bar is disposed at the upper end of the connecting handle, and positioning blocks are disposed at the lower ends of both sides of the horizontal bar, the lower ends of the positioning blocks penetrate the connecting handle and extend into the positioning hole, the vertical bar is fixed in the middle of the horizontal bar, the lower end of the vertical bar penetrates the connecting handle and extends into the movable cavity, the disc is fixed at the lower end of the vertical bar, and a spring strip is disposed at the upper end of the disc and on the outer periphery of the vertical bar, the top of the spring strip being connected to the top wall of the movable cavity.

[0016] In some embodiments, the assembly end includes an mounting cylinder and a positioning cylinder; the mounting cylinder is disposed at the lower end of the connecting handle, and the inner wall of the mounting cylinder is provided with a threaded groove; the positioning cylinder is disposed at the end of the connecting rope away from the rope wheel, and the outer periphery of the positioning cylinder is provided with an external thread that mates with the threaded groove.

[0017] Compared with the prior art, the chainsaw starter assembly provided by this utility model allows operators to easily adjust the actual length of the connecting handle according to their needs by setting a movable extension end inside the connecting handle. This makes it suitable for operators with large hands, providing a more comfortable grip during pulling and enabling them to pull the starter more effectively. At the same time, a positioning end is set at the upper end of the connecting handle to limit the extension part and prevent displacement. Furthermore, an assembly end is set between the connecting rope and the connecting handle to facilitate the subsequent replacement of the entire connecting handle or connecting rope, thereby improving the service life of the device and effectively reducing the operating cost. Attached Figure Description

[0018] Figure 1 This is a front view of the chainsaw starter assembly provided in this embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the back of the chainsaw starter assembly provided in this embodiment of the utility model;

[0020] Figure 3This is a schematic diagram of the internal connection handle of the chainsaw starter assembly provided in this embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the connection handle and connection rope assembly of the chainsaw starter assembly provided in this embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the first and second extension cylinders of the chainsaw starter assembly provided in this embodiment of the utility model;

[0023] Figure 6 This is a schematic diagram of the interior of the movable chamber of the chainsaw starter assembly provided in this embodiment of the utility model.

[0024] Explanation of reference numerals in the attached drawings: 1. Shell; 11. Circular cavity; 2. Rope pulley; 3. Pulling end; 31. Connecting rope; 32. Connecting handle; 321. Movable chamber; 322. Slide groove; 33. Extension end; 331. First extension cylinder; 332. Second extension cylinder; 333. Sliding block; 334. Positioning hole; 335. Extension block; 34. Positioning end; 341. Horizontal bar; 3411. Positioning block; 342. Vertical bar; 343. Disc; 344. Spring bar; 4. Assembly end; 41. Mounting cylinder; 411. Threaded groove; 42. Positioning cylinder; 421. External thread. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] To address the technical problem that existing starter handles cannot be adaptively adjusted in length according to actual conditions, making them unsuitable for different users, this utility model provides a chainsaw starter assembly that allows workers to easily adjust the actual length of the pull handle according to actual conditions, thus making it suitable for workers with different hand sizes, facilitating a better grip on the pull handle, and improving the working efficiency of the starter assembly.

[0027] It should be noted that the chainsaw starter assembly described in this utility model is used in, but not limited to, the field of chainsaw equipment. For ease of explanation, this utility model only uses the application of the chainsaw starter assembly in chainsaw equipment as an example for explanation. The principle of the chainsaw starter assembly applied to other types of equipment is essentially the same as that applied to chainsaw equipment, and will not be described in detail here.

[0028] Please see Figure 1 , Figure 1This is a schematic diagram of the structure of a chainsaw starter assembly in one embodiment of the present invention. The chainsaw starter assembly includes a housing 1, a rope wheel 2, and a pulling end 3. A circular cavity 11 is provided on the back of the housing 1. The rope wheel 2 is rotatably connected to the circular cavity 11. The pulling end 3 includes a connecting rope 31, a connecting handle 32, an extension end 33, and a positioning end 34. One end of the connecting rope 31 is connected to the rope wheel 2, and the other end is threadedly connected to the lower end of the connecting handle 32 through an assembly end 4. The connecting handle 32 has an extension end 33 that can move outward, and the upper end of the connecting handle 32 is elastically connected to the positioning end 34, which is used to control the extension length of the extension end 33.

[0029] In this embodiment, the operator can easily adjust the actual length of the connecting handle 32 according to actual needs by setting a movable extension end 33 inside the connecting handle 32, making it suitable for operators with large hands and allowing them to hold it more comfortably during the pulling process, thus enabling them to pull the starter more effectively. At the same time, a positioning end 34 is set at the upper end of the connecting handle 32 to limit the extension part of the extension end 33 and prevent it from shifting. Furthermore, by setting an assembly end 4 between the connecting rope 31 and the connecting handle 32, it is convenient to replace the entire connecting handle 32 or the connecting rope 31 in the future, which improves the service life of the device and effectively reduces the cost of use.

[0030] In one embodiment, please refer to Figure 3 - Figure 6 To improve the space utilization efficiency inside the connecting handle 32, a movable chamber 321 is provided inside the connecting handle 32. A groove 322 is provided on the bottom wall of the movable chamber 321. An extension end 33 is slidably connected in the groove 322. The extension end 33 includes a first extension cylinder 331 and a second extension cylinder 332. The first extension cylinder 331 and the second extension cylinder 332 are slidably connected in the movable chamber 321, and the lower ends of the first extension cylinder 331 and the second extension cylinder 332 are fixed with sliders 333 that cooperate with the groove 322.

[0031] In this embodiment, a movable chamber 321 is provided inside the connecting handle 32 to make effective use of the internal space of the connecting handle 32. A sliding groove 322 is provided on the inner bottom wall of the movable chamber 321 to facilitate the horizontal sliding of the first extension cylinder 331 and the second extension cylinder 332 within the sliding groove 322. A gap is maintained between the first extension cylinder 331 and the second extension cylinder 332 to facilitate the setting of a positioning end 34 at the gap.

[0032] In one embodiment, please refer to Figure 3 - Figure 6To facilitate adjustment of the length of the connecting handle 32, both the first extension cylinder 331 and the second extension cylinder 332 have hollow interiors. The upper ends of both cylinders have positioning holes 334 that mate with the positioning end 34. Extension blocks 335 are fixed to opposite ends of both cylinders. The positioning end 34 includes a horizontal bar 341, a vertical bar 342, a disc 343, and a spring strip 344. The horizontal bar 341 is located at the upper end of the connecting handle 32, and... Positioning blocks 3411 are provided at the lower ends of both sides of the crossbar 341. The lower ends of the positioning blocks 3411 pass through the handle 32 and extend into the positioning hole 334. A vertical bar 342 is fixed in the middle of the crossbar 341. The lower end of the vertical bar 342 passes through the handle 32 and extends into the movable chamber 321. A disc 343 is fixed at the lower end of the vertical bar 342. A spring strip 344 is provided at the upper end of the disc 343 and on the outer periphery of the vertical bar 342. The top of the spring strip 344 is connected to the top wall of the movable chamber 321.

[0033] In this embodiment, multiple positioning holes 334 are equidistantly provided at the top of the first extension cylinder 331 and the second extension cylinder 332 to facilitate cooperation with the positioning end 34. The crossbar 341 is provided on the connecting handle 32, and a vertical rod 342 is fixed in the middle of the crossbar 341. The vertical rod 342 passes through the connecting handle 32 and is located between the first extension cylinder 331 and the second extension cylinder 332. A disc body 343 is provided on the vertical rod 342 and is located on the outer periphery of the vertical rod 342. A spring strip 344 is wound around the disc body 343, which pushes the disc body 343 downward, thereby causing the vertical rod 342 to drive the horizontal rod 341 downward. Since positioning blocks 3411 are provided on both sides of the horizontal rod 341, the positioning blocks 3411 are used to pass through the handle 32 and extend into the positioning hole 334 at the upper end of the first extension cylinder 331 or the second extension cylinder 332, thereby completing the positioning of the first extension cylinder 331 or the second extension cylinder 332 and preventing displacement after adjustment.

[0034] In one embodiment, please refer to Figure 3 - Figure 6 To facilitate the assembly between the connecting handle 32 and the connecting rope 31, the assembly end 4 includes an installation cylinder 41 and a positioning cylinder 42. The installation cylinder 41 is located at the lower end of the connecting handle 32, and the inner wall of the installation cylinder 41 is provided with a threaded groove 411. The positioning cylinder 42 is located at the end of the connecting rope 31 away from the rope wheel 2, and the outer periphery of the positioning cylinder 42 is provided with an external thread 421 that mates with the threaded groove 411.

[0035] In this embodiment, by setting a positioning cylinder 42 at the end of the connecting rope 31 and fixing an installation cylinder 41 at the lower end of the connecting handle 32, the external thread 421 of the positioning cylinder 42 extends into the threaded groove 411 inside the installation cylinder 41, thereby completing the assembly between the connecting rope 31 and the connecting handle 32. When the connecting rope 31 breaks later, the connecting handle 32 can be easily connected to a new rope, thus achieving the effect of saving costs.

[0036] To better understand this utility model, the following is combined with... Figures 1 to 6 The technical solution of this utility model is described in detail below: When the operator needs to adjust the length of the connecting handle 32, the horizontal bar 341 is pulled, causing it to drive the vertical bar 342 and the disc 343, compressing the spring strip 344, and causing the positioning block 3411 to move away from the positioning hole 334 on the first extension cylinder 331 or the second extension cylinder 332. At this time, the first extension cylinder 331 and the second extension cylinder 332 can be pulled according to the actual situation through the extension block 335, so as to adjust the actual length of both sides of the connecting handle 32. This makes it convenient for different operators to hold the connecting handle 32. When the first extension cylinder... After the positions of 331 and the second extension tube 332 are adjusted, stop pulling the horizontal bar 341. The spring bar 344 begins to reset and pushes the disc 343 and the vertical bar 342 downward. This allows the positioning block 3411 to re-insert into the positioning hole 334 of the first extension tube 331 or the second extension tube 332, thus completing the limit. The adjusted connecting handle 32 is suitable for different workers, making the grip of the connecting handle 32 better. This makes it easier for workers to pull the starter to start by cooperating with the connecting handle 32 and the connecting rope 31, thereby greatly improving the working efficiency of the device.

[0037] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A starter assembly for a chainsaw, characterized in that, include: The container shell has a circular cavity on its back side; A rope pulley, which is rotatably connected within the circular cavity; The pulling end includes a connecting rope, a connecting handle, an extension end, and a positioning end; one end of the connecting rope is connected to the rope wheel, and the other end is threadedly connected to the lower end of the connecting handle through an assembly end; the connecting handle has an extension end that can move outward, and the upper end of the connecting handle is elastically connected to the positioning end, which is used to control the extension length of the extension end.

2. The chainsaw starter assembly according to claim 1, characterized in that: The connecting handle has an internal movable chamber, and the bottom wall of the movable chamber has a sliding groove, within which an extension end is slidably connected.

3. The chainsaw starter assembly according to claim 2, characterized in that: The extension end includes a first extension tube and a second extension tube; the first extension tube and the second extension tube are slidably connected to the movable cavity, respectively.

4. The chainsaw starter assembly according to claim 3, characterized in that: The lower ends of both the first extension cylinder and the second extension cylinder are fixed with sliders that cooperate with the slide groove.

5. A chainsaw starter assembly according to claim 3, characterized in that: Both the first extension tube and the second extension tube have hollow interiors, and both the first extension tube and the second extension tube have positioning holes at their upper ends that mate with the positioning end.

6. The chainsaw starter assembly according to claim 3, characterized in that: An extension block is fixed to one of the opposite ends of the first extension tube and the second extension tube.

7. A chainsaw starter assembly according to claim 5, characterized in that: The positioning end includes a horizontal bar, a vertical bar, a disc, and a spring bar; the horizontal bar is disposed at the upper end of the connecting handle, and positioning blocks are disposed at the lower ends of both sides of the horizontal bar. The lower ends of the positioning blocks pass through the connecting handle and extend into the positioning holes. The vertical bar is fixed in the middle of the horizontal bar. The lower end of the vertical bar passes through the connecting handle and extends into the movable cavity. The disc is fixed at the lower end of the vertical bar. A spring bar is disposed at the upper end of the disc and on the outer periphery of the vertical bar. The top of the spring bar is connected to the top wall of the movable cavity.

8. The chainsaw starter assembly according to claim 1, characterized in that: The assembly end includes an installation cylinder and a positioning cylinder; the installation cylinder is located at the lower end of the connecting handle, and the inner wall of the installation cylinder is provided with a threaded groove; the positioning cylinder is located at the end of the connecting rope away from the rope wheel, and the outer periphery of the positioning cylinder is provided with an external thread that mates with the threaded groove.

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