Electric start chain saw

Abstract

The invention relates to the technical field of oil saws, and discloses an electric start oil saw, comprising an oil saw housing, a guide plate component being installed on the oil saw housing, the guide plate component comprising a No. 1 guide plate, the No. 1 guide plate being installed in the oil saw housing, a No. 1 plug-in slot being provided on the No. 1 guide plate, a No. 1 plug-in block being plugged into the No. 1 plug-in slot, the No. 1 plug-in block being fixedly connected to a No. 2 guide plate, the No. 2 guide plate being arranged on one side of the No. 1 guide plate, a guide plate telescopic driving device being arranged between the No. 1 guide plate and the No. 2 guide plate, chain mounting slots being provided on the No. 1 guide plate and the No. 2 guide plate, a chain assembly being installed on the chain mounting slot, and the scheme has the beneficial effect of freely controlling the cutting length of the oil saw, and solves the problem that the cutting length of the existing oil saw cannot be freely adjusted, resulting in the need to use oil saws of different specifications when cutting wood of different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of chain saws, in particular to an electric starting chain saw. Background Art

[0002] An electric-start chain saw, also known as a gasoline chain saw or gasoline-powered saw, is a portable power saw that uses an electric starting system and a gasoline engine as its power source.

[0003] Electric-start chainsaws are primarily used in logging, timber harvesting, wood cutting, branch pruning, and wood product processing. They work by rapidly starting the gasoline engine through an electric starting system. The engine generates power, which is then transferred to the saw chain via a transmission. The saw chain rotates at high speed on a guide rail, using its sharp teeth to cut the wood.

[0004] However, the cutting length of the chainsaw in the prior art is determined by the guide bar length and the chain length, and the chain length and the guide bar length of the existing chainsaw are fixed, which leads to the fact that the cutting length of the chainsaw is usually fixed and the length cannot be freely controlled. When the chainsaw cannot cut too long wood, it is necessary to replace the chainsaw of different sizes. Frequent replacement of different chainsaws during cutting work consumes a lot of time and cost, which reduces work efficiency; therefore, it does not meet the existing needs. We have proposed an electric-start chainsaw. Summary of the Invention

[0005] The present invention provides an electric-start chain saw having the beneficial effect of freely controlling the cutting length of the chain saw, solving the problem mentioned in the above background technology that the cutting length of the existing chain saw cannot be freely adjusted, resulting in the need to use chain saws of different specifications when cutting wood of different sizes.

[0006] The present invention provides the following technical solution: an electric starting oil saw, comprising an electric saw housing, a guide plate component installed on the electric saw housing, the guide plate component comprising a No. 1 guide plate, the No. 1 guide plate installed in the electric saw housing, a No. 1 plug-in slot being provided on the No. 1 guide plate, a No. 1 plug-in block being plugged into the No. 1 plug-in slot, the No. 1 plug-in block being fixedly connected to the No. 2 guide plate, the No. 2 guide plate being arranged on one side of the No. 1 guide plate, a guide plate telescopic driving device being provided between the No. 1 guide plate and the No. 2 guide plate, a chain mounting slot being provided on the No. 1 guide plate and the No. 2 guide plate, a chain assembly being installed on the chain mounting slot.

[0007] The guide plate telescopic drive device includes a No. 1 drive groove opened in the No. 1 guide plate, a rotating rod is rotatably connected in the No. 1 drive groove, a rotating groove is opened in the No. 1 plug-in block, one end of the rotating rod is fixedly connected to a screw rod, and a threaded block is provided on the side wall of the screw rod, and the threaded block is fixedly connected in the No. 1 plug-in block, and the threaded block is located at one end of the rotating groove.

[0008] The chain assembly includes a cutting chain, which is formed by connecting multiple groups of chain blocks. A chain gear is provided on one side of the cutting chain, and a drive shaft is fixedly connected to one side of the chain gear. The drive shaft is fixedly connected to the electric saw housing.

[0009] As an optional solution of the electric-start chain saw described in the present invention, wherein: a No. 2 plug-in block is fixedly connected to one side of the No. 1 guide plate, the No. 2 plug-in block is plugged into the No. 2 plug-in slot, the No. 2 plug-in slot is provided in the No. 2 guide plate, and chain mounting slots are provided on the No. 1 guide plate and the No. 2 guide plate, and the cutting chain is installed in the chain mounting slot.

[0010] As an optional solution of the electric-start chain saw described in the present invention, one end of the screw rod is fixedly connected to an anti-slip block, and the anti-slip block is slidably connected in the rotating groove.

[0011] As an optional solution for an electric-start chainsaw described in the present invention, one end of the rotating rod is fixedly connected to a No. 1 bevel gear, the No. 1 bevel gear is meshedly connected to a No. 2 bevel gear, one side of the No. 2 bevel gear is fixedly connected to a drive motor, and the drive motor is installed in the chainsaw housing.

[0012] As an optional solution for an electric-start chain saw described in the present invention, the chain assembly includes a cutting plate, a cutting block is fixedly connected to one side of the cutting plate, a connecting shaft is rotatably connected inside the cutting plate, a connecting plate is rotatably connected to the side wall of the connecting shaft, and chain tensioning assemblies are provided at both ends of the connecting shaft.

[0013] As an optional solution for an electric-start chain saw described in the present invention, the chain tensioning assembly includes a No. 1 slide groove opened in the No. 1 guide plate, a slider is slidably connected in the No. 1 slide groove, a chain clamping block is fixedly connected to the slider, and the connecting shaft is slidably connected in the chain clamping block.

[0014] As an optional solution for an electric-start chain saw described in the present invention, a mounting groove is provided in the No. 1 guide plate, a worm is rotatably connected in the mounting groove, the worm is fixedly connected to the side wall of the rotating rod, a worm wheel is provided on one side of the worm, the worm wheel is rotatably connected in the No. 1 circular groove, the No. 1 circular groove is provided in the No. 1 guide plate, the No. 1 circular groove is communicated with the mounting groove, the worm wheel is meshed with a No. 1 tooth block, and the No. 1 tooth block is fixedly connected to one side of the slider.

[0015] As an optional solution for an electric-start chain saw described in the present invention, a filling assembly is provided in the No. 1 guide plate, and the filling assembly includes a filling groove opened in the No. 1 guide plate, a filling block is slidably connected in the filling groove, and an interfering oblique groove is opened on the filling block, one side of the filling block is fixedly connected to the No. 1 spring, and the other end of the No. 1 spring is fixedly connected in the filling groove.

[0016] As an optional solution of an electric-start chain saw described in the present invention, wherein: a transmission assembly is provided in the No. 1 guide plate, and the transmission assembly includes a No. 2 slide groove opened in the No. 1 guide plate, a driving plate is slidably connected in the No. 2 slide groove, one end of the driving plate is in contact with the interfering inclined groove, a driving tooth block is fixedly connected to the driving plate, the driving tooth block is meshedly connected to the No. 1 transmission gear, the No. 1 transmission gear is meshedly connected to the No. 2 transmission gear, the No. 2 transmission gear is meshedly connected to the worm gear, the No. 1 transmission gear is rotatably connected in the No. 2 circular groove, the No. 2 transmission gear is rotatably connected in the No. 3 circular groove, and the No. 2 circular groove and the No. 3 circular groove are opened in the No. 1 guide plate.

[0017] The present invention has the following beneficial effects:

[0018] 1. The electric-start chain saw can effectively extend the cutting length of the chain saw through the telescopic guide plate design. The rotation of the rotating rod is realized by the drive of the drive motor and the engagement between the No. 1 bevel gear and the No. 2 bevel gear. The rotation of the rotating rod can further realize the extension and retraction of the No. 2 guide plate. At the same time, the tension of the chain is synchronously realized through the connection between the worm and the worm wheel to ensure the taut state of the chain. The chain will be continuously adjusted as the guide plate is extended to ensure that the chain is always at a working tautness. This design effectively solves the problem that the cutting length of the existing chain saw cannot be freely adjusted, resulting in the need to use chain saws of different specifications when cutting wood of different sizes.

[0019] 2. This electric-start chain saw can effectively ensure the stability of the cutting chain during operation through the specially designed chain assembly block and the clamping of the cutting chain by the chain clamping block. At the same time, it ensures the stability of the cutting chain when it is driven by the chain gear. The No. 1 guide plate is located at the connection with the chain clamping block and is designed with a larger entrance. This design can effectively ensure the sliding of the cutting chain in the chain mounting groove and will not cause the cutting chain to be stuck due to the height difference caused by the telescopic chain clamping block.

[0020] 3. The electric-start chain saw, through the design of the filling component and the transmission component, fills the gap caused by the sliding between the No. 1 plug-in block and the No. 1 plug-in slot, thereby effectively ensuring the stability of the guide plate connection. While the worm gear rotates, through the transmission of the No. 1 transmission gear and the No. 2 transmission gear, and the engagement of the No. 1 transmission gear with the driving tooth block, the driving plate can be directly driven to slide in the No. 2 slide slot, driving the driving plate to contact the interference bevel on the filling block. Since the interference bevel is contacted by the driving plate, the filling block slides in the filling slot. Through this sliding, the gap generated after the No. 1 plug-in block is separated from the No. 1 plug-in slot can be filled, thereby effectively improving the strength of the guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a schematic diagram of the guide plate structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0024] Figure 4 For the present invention Figure 3 Schematic diagram of the local structure.

[0025] Figure 5 For the present invention Figure 3 Schematic diagram of the cross-section structure of section 1-1.

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of the local structure.

[0027] Figure 7 For the present invention Figure 6 Enlarged structural diagram at point A in the middle.

[0028] Figure 8 It is a structural schematic diagram of the connection between the chain assembly block and the chain clamping block of the present invention.

[0029] Figure 9 For the present invention Figure 3 Schematic diagram of the cross-section structure of section 2-2.

[0030] Figure 10 For the present invention Figure 9 Schematic diagram of the local structure.

[0031] Figure 11 It is a structural schematic diagram of the connection between the chain tensioning assembly, the filling assembly and the transmission assembly of the present invention.

[0032] Figure 12 It is a structural schematic diagram of the connection between the filling component and the transmission component of the present invention.

[0033] In the figure: 1. Electric saw housing; 2. Guide bar component; 201. Guide bar No. 1; 202. Guide bar No. 2; 203. Connecting slot No. 1; 204. Connecting block No. 1; 205. Connecting slot No. 2; 206. Connecting block No. 2; 207. Chain mounting slot; 3. Guide bar extension and retraction drive device; 301. Drive slot No. 1; 302. Rotating slot; 303. Rotating rod; 304. Screw rod; 305. Anti-slip block; 306. Threaded block; 307. Bevel gear No. 1; 308. Bevel gear No. 2; 309. Drive motor; 4. Chain assembly; 401. Cutting chain; 402. Chain assembly block; 4021. Cutting plate; 4022. Cutting block; 4023 , connecting plate; 4024, connecting shaft; 403, chain gear; 404, driving shaft; 5, chain tensioning assembly; 501, chain clamping block; 502, slider; 503, slide groove No. 1; 504, tooth block No. 1; 505, worm wheel; 506, circular groove No. 1; 507, worm; 508, mounting groove; 6, filling assembly; 601, filling groove; 602, filling block; 603, interference inclined groove; 604, spring No. 1; 7, transmission assembly; 701, slide groove No. 2; 702, driving plate; 703, driving tooth block; 704, transmission gear No. 1; 705, transmission gear No. 2; 706, circular groove No. 2; 707, circular groove No. 3. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example 1: This example aims to solve the problem that the cutting length of the existing chain saw cannot be freely adjusted, resulting in the need to use chain saws of different specifications when cutting wood of different sizes. Figure 1-12A power-starting oil saw comprises a power saw housing 1, a guide plate component 2 is mounted on the power saw housing 1, the guide plate component 2 comprises a No. 1 guide plate 201, the No. 1 guide plate 201 is mounted in the power saw housing 1, a No. 1 plug-in slot 203 is provided on the No. 1 guide plate 201, a No. 1 plug-in block 204 is plugged into the No. 1 plug-in slot 203, the No. 1 plug-in block 204 is fixedly connected to the No. 2 guide plate 202, the No. 2 guide plate 202 is arranged on one side of the No. 1 guide plate 201, a guide plate telescopic driving device 3 is arranged between the No. 1 guide plate 201 and the No. 2 guide plate 202, a chain mounting groove 207 is provided on the No. 1 guide plate 201 and the No. 2 guide plate 202, and a chain assembly 4 is mounted on the chain mounting groove 207.

[0036] The guide plate telescopic drive device 3 includes a No. 1 drive groove 301 opened in the No. 1 guide plate 201, a rotating rod 303 is rotatably connected in the No. 1 drive groove 301, a rotating groove 302 is opened in the No. 1 plug-in block 204, one end of the rotating rod 303 is fixedly connected to the screw rod 304, and a threaded block 306 is provided on the side wall of the screw rod 304. The threaded block 306 is fixedly connected in the No. 1 plug-in block 204, and the threaded block 306 is located at one end of the rotating groove 302.

[0037] The chain assembly 4 includes a cutting chain 401 , which is formed by connecting multiple chain blocks 402 . A chain gear 403 is provided on one side of the cutting chain 401 . A drive shaft 404 is fixedly connected to one side of the chain gear 403 . The drive shaft 404 is fixedly connected to the electric saw housing 1 .

[0038] One side of the No. 1 guide plate 201 is fixedly connected to the No. 2 plug-in block 206, the No. 2 plug-in block 206 is plugged into the No. 2 plug-in slot 205, the No. 2 plug-in slot 205 is provided in the No. 2 guide plate 202, and a chain mounting slot 207 is provided on the No. 1 guide plate 201 and the No. 2 guide plate 202, and a cutting chain 401 is installed in the chain mounting slot 207.

[0039] One end of the rotating rod 303 is fixedly connected to the first bevel gear 307 , the first bevel gear 307 is meshedly connected to the second bevel gear 308 , and one side of the second bevel gear 308 is fixedly connected to the driving motor 309 , which is installed in the electric saw housing 1 .

[0040] An electric-start chain saw uses an electric starting system to quickly start the gasoline engine. This system, powered by a battery-powered electric motor, generates powerful torque at startup, rotating the engine's flywheel and starting the gasoline engine. The system, comprised of a control circuit, electromagnetic coils, and rotors, converts electrical energy into mechanical energy. The engine drives the transmission system, which rotates the saw chain at high speed on a metal guide rail, thereby cutting the wood. Simultaneously, a lubrication system provides the necessary lubrication for the saw chain and engine, ensuring smooth cutting and extending service life. The operating control device makes operation more flexible and convenient. (The starting principle of the electric-start chain saw described above is prior art, so it will not be described in detail in this proposal.)

[0041] The second guide plate 202 can be extended and retracted under the drive of the guide plate extension and retraction drive device 3. The driving motor 309 and the meshing between the second bevel gear 308 and the first bevel gear 307 can drive the rotating rod 303 to rotate. The rotation of the rotating rod 303 drives the screw rod 304 fixed thereto to rotate synchronously. The meshing of the screw rod 304 and the threaded block 306 and the connection between the No. 1 plug-in slot 203 and the No. 1 plug-in block 204 can realize the rotation of the rotating rod 303 while driving the second guide plate 202 to slide outward. At the same time, the rotation of the rotating rod 303 can also synchronously drive the chain tensioning assembly 5 to move, thereby adjusting the movement trajectory of the cutting chain 401, thereby ensuring that the cutting chain 401 can fit in the chain mounting groove 207. Through this sliding and fitting of the cutting chain 401, the length of the guide plate in the chainsaw can be freely adjusted, and the position of the chain can be synchronously adjusted, thereby adjusting the different sizes of the chainsaw.

[0042] The design of the No. 2 plug-in slot 205 and the No. 2 plug-in block 206 ensures that the empty part in the middle of the No. 2 guide plate 202 can be filled after sliding, ensuring that the track of the chain mounting slot 207 will not break, and effectively preventing the risk of the cutting chain 401 detaching from the chain mounting slot 207.

[0043] One end of the screw rod 304 is fixedly connected to an anti-slip block 305, and the anti-slip block 305 is slidably connected in the rotating groove 302. The design of the anti-slip block 305 effectively limits the sliding distance of the No. 2 guide plate 202, and effectively prevents the No. 2 guide plate 202 from sliding excessively, causing the two guide plates to detach from each other.

[0044] Example 2: This example aims to solve the problem of adjusting the position of the chain while adjusting the length of the guide plate to ensure that the chain can always be in a tight state while the guide plate is extended and retracted. This example is an explanation based on Example 1. For details, please refer to Figure 1-12 ,

[0045] The chain assembly 402 includes a cutting plate 4021, a cutting block 4022 is fixedly connected to one side of the cutting plate 4021, a connecting shaft 4024 is rotatably connected inside the cutting plate 4021, a connecting plate 4023 is rotatably connected to the side wall of the connecting shaft 4024, and chain tensioning components 5 are provided at both ends of the connecting shaft 4024.

[0046] The cutting block 4022 located on the cutting plate 4021 is used for cutting wood. The cutting chain 401 is driven by the chain gear 403 to achieve high-speed movement. The cutting block 4022 can cut the wood through this high-speed movement. The connecting shaft 4024 is used to connect the cutting plate 4021 and the connecting plate 4023. The connecting plate 4023 is used to connect two adjacent cutting plates 4021. Compared with the traditional connecting shaft 4024, the connecting shaft 4024 designed in this scheme is longer. This longer connecting shaft 4024 can better ensure the stability of the cutting chain 401 sliding in the chain clamping block 501.

[0047] The chain tensioning assembly 5 includes a No. 1 slide groove 503 provided in the No. 1 guide plate 201 , a slider 502 is slidably connected in the No. 1 slide groove 503 , a chain clamping block 501 is fixedly connected to the slider 502 , and a connecting shaft 4024 is slidably connected in the chain clamping block 501 .

[0048] The chain clamping block 501 is used to clamp the chain assembly block 402. By sliding the connecting shaft 4024 in the chain clamping block 501, it can effectively ensure that the cutting chain 401 will not escape from the clamping of the chain clamping block 501 during cutting work. At the same time, the sliding of the connecting shaft 4024 in the chain clamping block 501 can effectively ensure that the movement trajectory of the cutting chain 401 can be changed by raising and lowering the chain clamping block 501.

[0049] A mounting groove 508 is provided in the No. 1 guide plate 201, and a worm 507 is rotatably connected in the mounting groove 508. The worm 507 is fixedly connected to the side wall of the rotating rod 303. A worm wheel 505 is provided on one side of the worm 507. The worm wheel 505 is rotatably connected in the No. 1 circular groove 506. The No. 1 circular groove 506 is provided in the No. 1 guide plate 201. The No. 1 circular groove 506 is connected to the mounting groove 508. The worm wheel 505 is meshed with the No. 1 tooth block 504, and the No. 1 tooth block 504 is fixedly connected to one side of the slider 502.

[0050] As the rotating rod 303 rotates, the worm 507 located on the side wall of the rotating rod 303 rotates synchronously, and the meshing between the worm 507 and the worm wheel 505 drives the worm wheel 505 to rotate. Since the worm wheel 505 and the slider 502 are meshed and connected through the No. 1 tooth block 504, the rotation of the rotating rod 303 can effectively drive the slider 502 to slide up and down in the No. 1 slide groove 503. The sliding of the slider 502 can drive the chain clamping block 501 to clamp the cutting chain 401 and move up and down. The up and down movement of the cutting chain 401 can effectively ensure that the No. 2 guide plate 202 is in a stable state. When extending or retracting, ensure that the cutting chain 401 is in a taut state and always fits the guide plate. Through this design, the problem of the telescopic guide plate being unable to extend or retract due to the unchanged total length of the chain is effectively solved. When the guide plate is extended to the maximum position, the chain clamping block 501 is at the highest point. At this time, the chain is elliptical. When the guide plate retracts inward, the chain clamping block 501 will move the chain downward. By increasing the chain stroke, the chain is always in a taut state and will not fall off the chain mounting slot 207, effectively preventing the chain from falling off due to the reduction in the guide plate length.

[0051] refer to Figure 9 In order to ensure the stability of the movement of the cutting chain 401 when it is driven by the chain gear 403, a larger entrance is designed at the connection between the No. 1 guide plate 201 and the chain clamping block 501. This design can effectively ensure that the cutting chain 401 slides in the chain mounting groove 207, and will not cause the cutting chain 401 to be stuck due to the height difference caused by the telescopic design of the chain clamping block 501.

[0052] Example 3: This example aims to solve the problem that after the second guide plate is extended, a gap will appear in the middle of the guide plate, which will reduce the strength of the guide plate as a whole. This example is explained on the basis of Example 2. For details, please refer to Figure 1-12 A filling assembly 6 is provided in the No. 1 guide plate 201. The filling assembly 6 includes a filling groove 601 opened in the No. 1 guide plate 201. A filling block 602 is slidably connected in the filling groove 601. The filling block 602 is provided with a resisting inclined groove 603. One side of the filling block 602 is fixedly connected to the No. 1 spring 604, and the other end of the No. 1 spring 604 is fixedly connected in the filling groove 601.

[0053] A transmission assembly 7 is provided in the No. 1 guide plate 201. The transmission assembly 7 includes a No. 2 slide groove 701 opened in the No. 1 guide plate 201. A driving plate 702 is slidably connected in the No. 2 slide groove 701. One end of the driving plate 702 is in contact with the interfering inclined groove 603. A driving gear block 703 is fixedly connected to the driving plate 702. The driving gear block 703 is meshed and connected to the No. 1 transmission gear 704. The No. 1 transmission gear 704 is meshed and connected to the No. 2 transmission gear 705. The No. 2 transmission gear 705 is meshed and connected to the worm gear 505. The No. 1 transmission gear 704 is rotatably connected in the No. 2 circular groove 706. The No. 2 transmission gear 705 is rotatably connected in the No. 3 circular groove 707. The No. 2 circular groove 706 and the No. 3 circular groove 707 are opened in the No. 1 guide plate 201.

[0054] After the No. 2 guide plate 202 is extended, a gap will appear in the middle of the guide plate. The appearance of this gap will lead to a reduction in the overall strength of the guide plate. In order to fill this gap, the filling component 6 is driven to move by the transmission component 7 while the rotating rod 303 rotates to fill this gap, thereby ensuring the strength of the guide plate. This ensures that when the chain is running, the guide plate will not shake or deflect as a whole due to instability, thereby reducing the swing amplitude of the chain and effectively preventing the chain from falling off when cutting wood due to excessive swing amplitude of the chain.

[0055] When the worm gear 505 rotates, the transmission of the No. 1 transmission gear 704 and the No. 2 transmission gear 705, as well as the meshing of the No. 1 transmission gear 704 and the driving tooth block 703, can directly drive the driving plate 702 to slide in the No. 2 slide groove 701, driving the driving plate 702 to contact the interference inclined groove 603 on the filling block 602. Since the interference inclined groove 603 is contacted by the driving plate 702, the filling block 602 slides in the filling groove 601. Through this sliding, the gap generated after the No. 1 plug-in block 204 is separated from the No. 1 plug-in groove 203 can be filled, which effectively improves the strength of the guide plate and ensures that the guide plate will not deflect or even break in the gap when the chain is running, thereby ensuring the stability of the chain and reducing the swing amplitude of the chain. It can effectively prevent the chain from being detached when cutting wood due to excessive chain swing amplitude.

[0056] The No. 1 spring 604 connects the filling block 602 to the filling slot 601, which can effectively ensure that the filling block 602 can be quickly pulled back into the filling slot 601 when extension and retraction are not required.

[0057] refer to Figure 12It can be seen that there are multiple groups of filling blocks 602, so it can be ensured that no matter how long the second guide plate 202 is extended, there are corresponding numbers of filling blocks 602 that are resisted by the driving plate 702 to fill the gap. Through this design, every time the second guide plate 202 is extended a fixed distance, a corresponding filling block 602 will be extended, effectively ensuring the flexibility of the telescopic guide.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An electric-start chain saw, comprising a chain saw housing (1), characterized in that: A guide plate component (2) is installed on the electric saw housing (1), and the guide plate component (2) comprises a No. 1 guide plate (201), the No. 1 guide plate (201) is installed in the electric saw housing (1), a No. 1 plug-in slot (203) is provided on the No. 1 guide plate (201), a No. 1 plug-in block (204) is plugged into the No. 1 plug-in slot (203), the No. 1 plug-in block (204) is fixedly connected to the No. 2 guide plate (202), the No. 2 guide plate (202) is arranged on one side of the No. 1 guide plate (201), a guide plate telescopic driving device (3) is arranged between the No. 1 guide plate (201) and the No. 2 guide plate (202), a chain installation slot (207) is provided on the No. 1 guide plate (201) and the No. 2 guide plate (202), and a chain assembly (4) is installed on the chain installation slot (207); The guide plate telescopic driving device (3) comprises a No. 1 driving groove (301) provided in the No. 1 guide plate (201), a rotating rod (303) being rotatably connected in the No. 1 driving groove (301), a rotating groove (302) being provided in the No. 1 plug-in block (204), one end of the rotating rod (303) being fixedly connected to a screw rod (304), a side wall of the screw rod (304) being provided with a threaded block (306), the threaded block (306) being fixedly connected in the No. 1 plug-in block (204), and the threaded block (306) being located at one end of the rotating groove (302); The chain assembly (4) comprises a cutting chain (401), wherein the cutting chain (401) is formed by connecting a plurality of chain blocks (402), a chain gear (403) is provided on one side of the cutting chain (401), a drive shaft (404) is fixedly connected to one side of the chain gear (403), and the drive shaft (404) is fixedly connected to the inside of the electric saw housing (1); The chain assembly block (402) comprises a cutting plate (4021), a cutting block (4022) is fixedly connected to one side of the cutting plate (4021), a connecting shaft (4024) is rotatably connected inside the cutting plate (4021), a connecting plate (4023) is rotatably connected to the side wall of the connecting shaft (4024), and chain tensioning assemblies (5) are arranged at both ends of the connecting shaft (4024); The chain tensioning assembly (5) comprises a No. 1 slide groove (503) provided in the No. 1 guide plate (201), a slider (502) being slidably connected in the No. 1 slide groove (503), a chain clamping block (501) being fixedly connected to the slider (502), and the connecting shaft (4024) being slidably connected in the chain clamping block (501); The first guide plate (201) is provided with a mounting groove (508), a worm (507) is rotatably connected in the mounting groove (508), the worm (507) is fixedly connected to the side wall of the rotating rod (303), a worm wheel (505) is provided on one side of the worm (507), the worm wheel (505) is rotatably connected in the first circular groove (506), the first circular groove (506) is provided in the first guide plate (201), the first circular groove (506) is communicated with the mounting groove (508), the worm wheel (505) is meshedly connected with the first tooth block (504), and the first tooth block (504) is fixedly connected to one side of the sliding block (502).

2. An electric-start chain saw according to claim 1, characterized in that: A second plug-in block (206) is fixedly connected to one side of the first guide plate (201), the second plug-in block (206) is plugged into a second plug-in slot (205), the second plug-in slot (205) is provided in the second guide plate (202), a chain installation slot (207) is provided on the first guide plate (201) and the second guide plate (202), and the cutting chain (401) is installed in the chain installation slot (207).

3. An electric-start chain saw according to claim 2, characterized in that: One end of the screw rod (304) is fixedly connected to an anti-slip block (305), and the anti-slip block (305) is slidably connected in the rotating groove (302).

4. The electric-start chain saw according to claim 2, characterized in that: One end of the rotating rod (303) is fixedly connected to a first bevel gear (307), the first bevel gear (307) is meshingly connected to a second bevel gear (308), one side of the second bevel gear (308) is fixedly connected to a driving motor (309), and the driving motor (309) is installed in the electric saw housing (1).

5. The electric-start chain saw according to claim 1, characterized in that: A filling assembly (6) is arranged in the first guide plate (201), and the filling assembly (6) comprises a filling groove (601) provided in the first guide plate (201), a filling block (602) is slidably connected in the filling groove (601), an abutting inclined groove (603) is provided on the filling block (602), a first spring (604) is fixedly connected to one side of the filling block (602), and the other end of the first spring (604) is fixedly connected in the filling groove (601).

6. An electric-start chain saw according to claim 5, characterized in that: A transmission assembly (7) is arranged in the first guide plate (201), and the transmission assembly (7) comprises a second slide groove (701) provided in the first guide plate (201), a driving plate (702) is slidably connected in the second slide groove (701), one end of the driving plate (702) abuts against the abutting inclined groove (603), a driving tooth block (703) is fixedly connected to the driving plate (702), and the driving tooth block (703) is meshingly connected with the first transmission tooth block. The first transmission gear (704) is meshedly connected with the second transmission gear (705), the second transmission gear (705) is meshedly connected with the worm gear (505), the first transmission gear (704) is rotatably connected in the second circular groove (706), the second transmission gear (705) is rotatably connected in the third circular groove (707), and the second circular groove (706) and the third circular groove (707) are provided in the first guide plate (201).

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