Chain locking device for an electric chain saw

Abstract

The utility model relates to the technical field of gardens tools, disclose a chain locking device for electric chain saw, including main part assembly, including electric chain saw body, electric chain saw body one side is provided with the guide plate, electric chain saw body one side is fixed with the apron, electric chain saw body other side is fixed with the motor, adjusting assembly, set up in the apron, including adjusting piece, the adjusting piece includes the sleeve, the sleeve sets up one side of the guide plate, the sleeve top is provided with the pull rod, the pull rod one end swing joint has the pull -out board, the pull -out board below is provided with the runner. The utility model has the advantages of: through setting up the limit on the knob prevents being mistaken touch, when the limit to the knob is removed to adjust, can remove the connection of sprocket and motor simultaneously, when mistaken touch switch will not make the saw chain accidental rotation, reduce the unnecessary attrition of saw chain and guide plate, sprocket and other components between accidental rotation.

Description

Technical Field

[0001] This utility model relates to the field of garden tool technology, and in particular to a chain locking device for an electric chainsaw. Background Technology

[0002] The chain locking device is a key component of an electric chainsaw. It is used to fix the position of the saw chain, securely mounting it on the guide plate and preventing it from loosening during cutting operations. Operators can adjust the tension of the saw chain as needed, ensuring that the saw chain always moves stably and smoothly along the guide plate. This ensures that the electric chainsaw can safely and efficiently complete the cutting of materials such as wood. The position of the guide plate is adjusted by a knob on one side of the electric chainsaw cover plate, thereby achieving the locking degree of the saw chain. During the use or transportation of the electric chainsaw, it is easy for it to be accidentally touched by branches, tools, or other foreign objects, causing changes in chain tension. In addition, when adjusting the tension of the saw chain, the switch can be accidentally activated, causing the saw chain to rotate. Unexpected rotation of the saw chain will cause wear between it and components such as the guide plate and sprocket, shortening the service life of these key components. Utility Model Content

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0004] In view of the problems existing in the above and / or existing chain locking devices for electric chainsaws, this utility model is proposed.

[0005] Therefore, the problem this invention aims to solve is that the exposed knob is easily accidentally activated, and when the knob is turned to lock the chain, the switch is easily accidentally activated, causing the saw chain to rotate and increasing wear. To solve the above technical problems, this utility model provides the following technical solution: a chain locking device for an electric chainsaw, which includes a main body component, including an electric chainsaw body, a guide plate is provided on one side of the electric chainsaw body, a cover plate is fixed on one side of the electric chainsaw body, and a motor is fixed on the other side of the electric chainsaw body. An adjustment assembly, disposed on the cover plate, includes an adjustment member, the adjustment member including a sleeve disposed on one side of the guide plate, a pull rod disposed above the sleeve, a pull plate movably connected to one end of the pull rod, and a wheel disposed below the pull plate.

[0006] In a preferred embodiment of the chain locking device for electric chainsaws described in this utility model, the adjusting component further includes a rotating component, which includes a threaded rod inserted into one side of the sleeve, and a positioning plate rotatably connected to one end of the threaded rod.

[0007] As a preferred embodiment of the chain locking device for electric chainsaws described in this utility model, a first bevel gear is fixed at one end of the threaded rod, and a second bevel gear is provided on one side of the first bevel gear, wherein the first bevel gear and the second bevel gear mesh.

[0008] In a preferred embodiment of the chain locking device for electric chainsaws described in this utility model, a rotating sleeve is inserted into the top of the second bevel gear, a locking pin is movably connected to the top of the rotating sleeve, a knob is fixed to the top of the locking pin, and the knob is rotatably connected to the bottom of the pull rod through a bearing.

[0009] As a preferred embodiment of the chain locking device for electric chainsaws described in this utility model, a support plate is rotatably connected to the bottom of the locking post, a first spring is fixed to the bottom of the support plate, and one end of the first spring is fixed to the inner wall of the rotating sleeve.

[0010] In a preferred embodiment of the chain locking device for electric chainsaws described in this utility model, the adjusting component further includes a movable part, the movable part including a locking plate, the locking plate being located on one side of the pulling plate, and one end of the locking plate being rotatably connected to the rotating wheel.

[0011] As a preferred embodiment of the chain locking device for electric chainsaws described in this utility model, a connecting wheel is provided on one side of the rotating wheel, and the connecting wheel is fixed to one side of the motor.

[0012] As a preferred embodiment of the chain locking device for electric chainsaws described in this utility model, a drive column is inserted into one side of the rotating wheel, and a locking rod is fixed to one side of the drive column.

[0013] In a preferred embodiment of the chain locking device for electric chainsaws described in this utility model, a positioning plate is rotatably connected to the outside of the drive column, and a stop plate is fixed at one end of the drive column.

[0014] As a preferred embodiment of the chain locking device for electric chainsaws described in this utility model, a second spring is fixed on one side of the positioning plate, and one end of the second spring is rotatably connected to one side of the rotating wheel.

[0015] The beneficial effects of this utility model are as follows: by setting a limit on the knob to prevent it from being accidentally touched, when the limit on the knob is released for adjustment, the connection between the sprocket and the motor can be released at the same time. When the switch is accidentally touched, the saw chain will not rotate unexpectedly, reducing unnecessary wear between the saw chain and components such as the guide plate and sprocket caused by accidental rotation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is an overall structural diagram of the chain locking device for an electric chainsaw.

[0017] Figure 2 This is a structural diagram of the guide plate for a chain locking device used in an electric chainsaw.

[0018] Figure 3 This is a diagram of the knob structure for the chain locking device of an electric chainsaw.

[0019] Figure 4 This is a diagram of the clamping rod structure for a chain locking device used in an electric chainsaw.

[0020] Figure 5 This is a cross-sectional view of the rotating sleeve of the chain locking device for an electric chainsaw.

[0021] Figure 6 This is a cross-sectional structural diagram of the wheel for the chain locking device of an electric chainsaw. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example 1 Reference Figures 1-6This is the first embodiment of the present invention, which provides a chain locking device for an electric chainsaw. The chain locking device for an electric chainsaw includes a main body component 1 and an adjustment component 2. The two components work together to set a limit on the knob to prevent accidental activation. When the limit on the knob is released for adjustment, the connection between the sprocket and the motor can be simultaneously released, preventing the saw chain from rotating accidentally when the switch is accidentally activated. The main component 1 includes an electric chainsaw body 11, a guide plate 12 is provided on one side of the electric chainsaw body 11, a cover plate 13 is fixed on one side of the electric chainsaw body 11, and a motor 14 is fixed on the other side of the electric chainsaw body 11.

[0026] The electric chainsaw body 11 can cut various objects such as wood. The guide plate 12 is installed on one side of the electric chainsaw body 11 to provide a track for the saw chain to circulate and assist in the cutting function. The cover plate 13 is fixed on one side of the electric chainsaw body 11 to protect the internal components. The motor 14 serves as a power source to drive the saw chain to circulate at high speed along the guide plate 12 to cut objects.

[0027] Adjustment component 2 is disposed on cover plate 13 and includes adjustment component 21. Adjustment component 21 includes sleeve 211. Sleeve 211 is disposed on one side of guide plate 12. Pull rod 212 is disposed above sleeve 211. Pull plate 213 is movably connected to one end of pull rod 212. Rotary wheel 214 is disposed below pull plate 213.

[0028] A connecting hole is provided on one side of the guide plate 12. A connecting post corresponding to the connecting hole is fixed at the bottom of the sleeve 211. When the cover plate 13 is installed on one side of the guide plate 12 with bolts, the connecting post is engaged with the connecting hole. Then, by moving the sleeve 211, the guide plate 12 can be moved, thereby tightening the saw chain. By pulling the pull rod 212, the position of the sleeve 211 can be adjusted, and the pull plate 213 can be moved at the same time. By moving the pull plate 213, the connection between the rotary wheel 214 and the motor 14 can be released. The saw chain will not move during the adjustment process.

[0029] Example 2 Reference Figures 2-6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0030] Specifically, the adjustment component 2 also includes a rotating component 22, which includes a threaded rod 221. The threaded rod 221 is inserted into one side of the sleeve 211, and a positioning plate 222 is rotatably connected to one end of the threaded rod 221.

[0031] The threaded rod 221 and the sleeve 211 are threadedly connected. Rotating the threaded rod 221 can drive the sleeve 211 to move. There are two positioning plates 222, both of which are fixed to the inner wall of the cover plate 13. The positioning plates 222 can support the threaded rod 221.

[0032] Specifically, a first bevel gear 223 is fixed at one end of the threaded rod 221, and a second bevel gear 224 is provided on one side of the first bevel gear 223, and the first bevel gear 223 and the second bevel gear 224 mesh.

[0033] The second bevel gear 224 is rotatably connected to the cover plate 13 via a bearing. The user can rotate the second bevel gear 224 to drive the first bevel gear 223 to rotate, and the rotation of the first bevel gear 223 can drive the threaded rod 221 to rotate.

[0034] Specifically, a rotating sleeve 225 is inserted into the top of the second bevel gear 224, and a snap-fit ​​post 226 is movably connected to the top of the rotating sleeve 225. A knob 227 is fixed to the top of the snap-fit ​​post 226, and the knob 227 is rotatably connected to the bottom of the pull rod 212 through a bearing.

[0035] The rotating sleeve 225 is rotatably connected to the inner wall of the cover plate 13 via a bearing. A locking block is fixed on the locking post 226. The inner wall of the rotating sleeve 225 has a locking groove corresponding to the locking block. When the threaded rod 221 needs to be rotated to pull the pull rod 212, the pull rod 212 can drive the knob 227 to move. The knob 227 drives the locking post 226 to move. At this time, the locking post 226 can move inside the rotating sleeve 225. The locking post 226 drives the locking block to engage with the locking groove of the rotating sleeve 225. Then the knob 227 can be rotated. The rotation of the knob 227 can drive the locking post 226 to rotate. The rotation of the locking post 226 drives the rotating sleeve 225 to rotate. The rotation of the rotating sleeve 225 can make the threaded rod 221 rotate.

[0036] Specifically, a support plate 228 is rotatably connected to the bottom of the snap-fit ​​post 226, and a first spring 229 is fixed to the bottom of the support plate 228. One end of the first spring 229 is fixed to the inner wall of the rotating sleeve 225.

[0037] When the locking pin 226 moves, it causes the locking block and the locking slot to engage, which in turn causes the support plate 228 to move. The movement of the support plate 228 can apply a pulling force to the first spring 229. After the knob 227 is adjusted, the pull rod 212 is released, and the rebound force of the first spring 229 can cause the locking block and the locking slot to separate. At this time, turning the knob 227 again will not cause the threaded rod 221 to rotate.

[0038] Example 3 Reference Figures 1-6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0039] Specifically, the adjustment component 2 also includes a movable part 23, which includes a locking plate 231. The locking plate 231 is located on one side of the pull plate 213, and one end of the locking plate 231 is rotatably connected to the rotating wheel 214.

[0040] When the pull rod 212 is moved, it can cause the pull plate 213 to press against the clamping plate 231. At this time, the movement of the clamping plate 231 can drive the rotating wheel 214 to move, so that the rotating wheel 214 is separated from the motor 14. A connecting spring is fixed on one side of the pull plate 213, and one end of the connecting spring is fixed to the inner wall of the pull rod 212. When it is necessary to remove the cover plate 13, the pull plate 213 is retracted into the pull rod 212 and separated from the bottom of the clamping plate 231. At this time, the cover plate 13 can be removed from one side of the electric chainsaw body 11.

[0041] Specifically, a connecting wheel 232 is provided on one side of the rotating wheel 214, and the connecting wheel 232 is fixed to one side of the motor 14.

[0042] Both the rotating wheel 214 and the connecting wheel 232 have slots on one side. By engaging the rotating wheel 214 and the connecting wheel 232, and then starting the motor 14, the connecting wheel 232 can be driven to rotate, and the rotation of the connecting wheel 232 can drive the rotating wheel 214 to rotate. Specifically, a drive column 233 is inserted into one side of the rotating wheel 214, and a locking rod 234 is fixed to one side of the drive column 233.

[0043] The rotating wheel 214 and the drive column 233 are movably connected. A sprocket is fixed at one end of the drive column 233. A saw chain is sleeved on the outside of the sprocket. The rotation of the rotating wheel 214 drives the drive column 233 to rotate. The rotation of the drive column 233 drives the sprocket to rotate. The rotation of the sprocket drives the saw chain to move on the guide plate 12. When the pull rod 212 moves, it causes the rotating wheel 214 and the connecting wheel 232 to separate. At this time, the motor 14 rotates and drives the connecting wheel 232 to rotate. Then, the rotation of the connecting wheel 232 will not drive the rotating wheel 214 to rotate, so that the saw chain will not move on the guide plate 12.

[0044] A connecting groove corresponding to the locking rod 234 is provided on the rotating wheel 214. When the rotating wheel 214 moves, it can move on the drive column 233. At this time, the rotating wheel 214 can be separated from the connecting wheel 232. When the rotating wheel 214 and the connecting wheel 232 are engaged, the rotation of the rotating wheel 214 will drive the connecting groove to squeeze the locking rod 234, thereby causing the drive column 233 to rotate.

[0045] Specifically, a positioning disc 235 is rotatably connected to the outside of the drive column 233, and a baffle 236 is fixed to one end of the drive column 233.

[0046] The positioning plate 235 is fixed to the inner wall of the electric chainsaw body 11. The positioning plate 235 can support the drive column 233 and prevent the drive column 233 from shifting. The stop plate 236 is used to limit the rotating wheel 214 and prevent the rotating wheel 214 from falling off the drive column 233.

[0047] Specifically, a second spring 237 is fixed on one side of the positioning disk 235, and one end of the second spring 237 is rotatably connected to one side of the rotating wheel 214.

[0048] When the rotating wheel 214 is moved to separate it from the connecting wheel 232, a squeezing force can be applied to the second spring 237. When the pull rod 212 is released, the rebound force of the second spring 237 can drive the rotating wheel 214 back to its original position and re-engage with the connecting wheel 232.

[0049] In use, pulling the lever 212 moves the pull plate 213, which in turn presses against the clamping plate 231, causing the rotating wheel 214 to move along the drive column 233 and compress the second spring 237. At this point, the rotating wheel 214 can separate from the connecting wheel 232. Then, the motor 14 will rotate without driving the drive column 233 and the saw chain to rotate, thus preventing accidental rotation of the saw chain and wear caused by accidental switch activation during adjustment. Simultaneously, the lever 212 moves the knob 227 and the locking post 226, and the locking block of the locking post 226 engages with the groove of the rotating sleeve 225. When the saw chain engages, the support plate 228 stretches the first spring 229. Then, the knob 227 can be turned to drive the locking post 226 to rotate, thereby causing the rotating sleeve 225 to rotate. When the rotating sleeve 225 rotates, it drives the second bevel gear 224 to rotate. The second bevel gear 224 drives the first bevel gear 223 to rotate, thereby causing the threaded rod 221 to rotate. When the threaded rod 221 rotates, it drives the sleeve 211 to move. The movement of the sleeve 211 drives the guide plate 12 to move, thereby adjusting the tension of the saw chain and ensuring stable operation of the saw chain.

[0050] After adjustment, release the lever 212. The second spring 237 will rebound and drive the rotating wheel 214 to reset and engage with the connecting wheel 232, restoring power transmission. Then, the first spring 229 will drive the locking post 226 back to its original position, causing the locking block to separate from the locking groove. At this time, the knob 227 will not be able to drive the rotating sleeve 225 to rotate, forming a limit to prevent accidental contact and ensuring the stability of the saw chain tension during use.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A chain locking device for an electric chainsaw, characterized in that: include, The main component (1) includes an electric chainsaw body (11), a guide plate (12) is provided on one side of the electric chainsaw body (11), a cover plate (13) is fixed on one side of the electric chainsaw body (11), and a motor (14) is fixed on the other side of the electric chainsaw body (11). Adjustment component (2), disposed on cover plate (13), includes adjustment element (21), adjustment element (21) includes sleeve (211), sleeve (211) is disposed on one side of guide plate (12), pull rod (212) is disposed above sleeve (211), one end of pull rod (212) is movably connected to pull plate (213), and a wheel (214) is disposed below pull plate (213).

2. The chain locking device for an electric chainsaw as described in claim 1, characterized in that: The adjustment assembly (2) further includes a rotating component (22), which includes a threaded rod (221). The threaded rod (221) is inserted into one side of the sleeve (211), and a positioning plate (222) is rotatably connected to one end of the threaded rod (221).

3. The chain locking device for an electric chainsaw as described in claim 2, characterized in that: One end of the threaded rod (221) is fixed with a first bevel gear (223), and a second bevel gear (224) is provided on one side of the first bevel gear (223). The first bevel gear (223) and the second bevel gear (224) mesh.

4. The chain locking device for an electric chainsaw as described in claim 3, characterized in that: The top of the second bevel gear (224) is fitted with a rotating sleeve (225), the top of the rotating sleeve (225) is movably connected with a snap-fit ​​post (226), the top of the snap-fit ​​post (226) is fixed with a knob (227), and the knob (227) is rotatably connected to the bottom of the pull rod (212) through a bearing.

5. The chain locking device for an electric chainsaw as described in claim 4, characterized in that: The bottom of the snap-fit ​​post (226) is rotatably connected to a support plate (228), and a first spring (229) is fixed at the bottom of the support plate (228). One end of the first spring (229) is fixed to the inner wall of the rotating sleeve (225).

6. The chain locking device for an electric chainsaw as described in claim 5, characterized in that: The adjustment component (2) also includes a movable part (23), which includes a locking plate (231). The locking plate (231) is located on one side of the pull plate (213), and one end of the locking plate (231) is rotatably connected to the rotating wheel (214).

7. The chain locking device for an electric chainsaw as described in claim 6, characterized in that: A connecting wheel (232) is provided on one side of the rotating wheel (214), and the connecting wheel (232) is fixed to one side of the motor (14).

8. The chain locking device for an electric chainsaw as described in claim 7, characterized in that: A drive column (233) is inserted into one side of the rotating wheel (214), and a locking rod (234) is fixed to one side of the drive column (233).

9. The chain locking device for an electric chainsaw as described in claim 8, characterized in that: A positioning disc (235) is rotatably connected to the outside of the drive column (233), and a baffle (236) is fixed at one end of the drive column (233).

10. The chain locking device for an electric chainsaw as described in claim 9, characterized in that: A second spring (237) is fixed on one side of the positioning disk (235), and one end of the second spring (237) is rotatably connected to one side of the rotating wheel (214).

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