Electric chain saw with lubricating function

Abstract

The utility model discloses an electric chain saw with a lubricating function, which comprises an electric chain saw body and a mounting seat arranged on one side of the electric chain saw body, a guide plate and a saw chain are arranged in the mounting seat, an oil storage tank is fixedly arranged on the mounting seat, the oil storage tank comprises a first oil cavity and a second oil cavity, and the first oil cavity is communicated with the second oil cavity. A sliding hole and a first oil outlet hole communicated with the second oil cavity are formed in the first oil cavity, a second oil outlet hole for lubricating a saw chain is formed in the bottom of the second oil cavity, a lifting column penetrating through the sliding hole and the first oil outlet hole and extending into the second oil cavity is arranged on the mounting base in a sliding mode, and the lifting column is in clearance fit with the first oil outlet hole. The end of the lifting column is provided with a plugging block for plugging the first oil outlet hole, the plugging block is provided with a first inclined face, an elastic reset mechanism capable of covering the second oil outlet hole is arranged in the second oil cavity in a sliding mode, and the elastic reset mechanism is provided with a second inclined face attached to the first inclined face. The electric chain saw lubricating device has the advantages that the electric chain saw is lubricated according to actual conditions, and waste of lubricating oil due to the fact that oil is continuously supplied to the saw chain for lubrication when the saw chain is lubricated excessively is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric chain saws, in particular to an electric chain saw with a lubrication function. Background Art

[0002] An electric chain saw is an electric woodworking tool that uses a rotating chain saw blade for sawing. It is mainly used for logging, pruning and various wood processing. With the development of agriculture and forestry, people are using electric chain saws in more and more areas and with higher and higher frequency. During the use of traditional electric chain saws, a large amount of heat is generated between the guide plate and the saw chain, which may even burn red, reducing the service life of the electric chain saw. In order to increase the service life of the electric chain saw, some electric chain saws with oil supply devices have appeared on the market.

[0003] For example, the Chinese utility model patent "An intermittent oil supply device for an electric chain saw sprocket" with patent publication number CN214136426U includes a casing and a sprocket, a first oil chamber and a second oil chamber are provided inside the oil storage tank on the top of the casing, the first oil chamber and the second oil chamber are connected by a through hole, a spring is elastically connected to the top of the first oil chamber, and a piston that is highly adapted to the through hole is elastically connected to the free end of the spring, a cam is eccentrically fixedly connected to one side of the sprocket, a push rod in contact with the cam is provided on the outer side of the top of the cam, an oil supply pipe that passes through the second oil chamber is fixedly connected to the top of the push rod, and an oil outlet hole is opened on the outer wall of the oil supply pipe, when the sprocket rotates, the eccentrically arranged cam rotates synchronously with the sprocket, driving the push rod to move back and forth in the vertical direction, thereby moving the oil supply pipe to intermittently lift the piston, so that the lubricating oil intermittently enters the oil supply pipe.

[0004] In the above scheme, the rotation of the sprocket drives the eccentrically arranged cam to rotate with the sprocket, driving the push rod to move back and forth in the vertical direction, and finally driving the oil supply pipe to intermittently lift the piston, so that the lubricating oil intermittently enters the oil supply pipe. As long as the sprocket rotates, the lubricating oil in the first oil gun will intermittently enter the second oil chamber and finally enter the oil supply pipe, which will cause waste of lubricating oil when the saw chain is lubricated in transition. Utility Model Content

[0005] The utility model aims at the problem that when an electric chain saw is in use, as long as the sprocket wheel rotates, oil supply to the saw chain will be wasted intermittently. The technical problem to be solved by the utility model is to provide an electric chain saw with a lubrication function to solve the above problem.

[0006] The utility model solves the above technical problems by adopting the following technical solutions: an electric chain saw with lubrication function, comprising an electric chain saw body and a mounting seat arranged at one side of the electric chain saw body, wherein a guide plate and a saw chain are arranged in the mounting seat, an oil storage tank is fixedly arranged on the mounting seat, the oil storage tank comprises a first oil chamber and a second oil chamber, a sliding hole and a first oil outlet hole communicating with the second oil chamber are arranged in the first oil chamber, a second oil outlet hole for lubricating the saw chain is arranged at the bottom of the second oil chamber, a lifting column is slidably arranged on the mounting seat, the lifting column is matched with the first oil outlet hole, and the end of the lifting column has a There is a blocking block for blocking the first oil outlet hole, the blocking block has a first inclined surface, and an elastic reset mechanism that can cover the second oil outlet hole is slidably provided in the second oil chamber, the elastic reset mechanism has a second inclined surface abutting against the first inclined surface, when the lifting column is pressed to slide down, the first inclined surface squeezes the second inclined surface to make the elastic reset mechanism slide and expose the second oil outlet hole, the blocking block slides down with the lifting column to make the lubricating oil in the first oil chamber flow into the second oil chamber through the first oil outlet hole, and flows out from the second oil outlet hole to lubricate the saw chain; when the lifting column is released, the elastic reset mechanism resets to close the second oil outlet hole, and the blocking block slides up to the initial position to block the first oil outlet hole.

[0007] A further preferred solution of the utility model is: the elastic reset mechanism includes a sliding block and a reset spring, the second inclined surface is located on the sliding block, one end of the reset spring abuts against the inner wall of the second oil chamber, and the other end abuts against one end of the sliding block.

[0008] A further preferred solution of the utility model is that a guide groove for the sliding block to slide is provided at the bottom of the first oil chamber.

[0009] A further preferred solution of the utility model is: an oil outlet device corresponding to the saw chain is provided at the bottom of the second oil outlet hole, the oil outlet device includes an oil inlet pipe, an oil outlet pipe and an oil bubble, one end of the oil inlet pipe is fixedly connected to the second oil outlet hole, and the other end is fixedly connected to the oil bubble, one end of the oil outlet pipe is fixedly connected to the oil bubble, and the other end is provided above the saw chain.

[0010] A further preferred solution of the utility model is: there are two oil outlet pipes, which are symmetrically arranged on both sides of the oil bubble, one end of the two oil outlet pipes is fixedly connected to the two sides of the oil bubble, and the other end is respectively arranged above the two sides of the saw chain.

[0011] A further preferred solution of the utility model is that a strip hole is provided at the bottom of the guide slide groove, and a squeezing rod for squeezing the oil bubble when the sliding block slides from the guide slide groove through the strip hole at the bottom.

[0012] A further preferred solution of the utility model is that the end of the extrusion rod is provided with an extrusion head for extruding the oil bubble.

[0013] A further preferred solution of the utility model is: an oil inlet passage for conveying lubricating oil to the first oil chamber is provided in the lifting column, and a refueling port is provided on the top of the lifting column, and a cap is threadedly connected to the refueling port.

[0014] A further preferred solution of the utility model is: a hollow inner cylinder is provided in the first oil chamber, the inner cylinder surrounds the first oil outlet hole inside the inner cylinder, the lifting column sequentially passes through the inner cylinder and the first oil outlet hole and extends into the second oil chamber, the inner cylinder has a through hole and a through hole matching the end of the oil inlet channel, the through hole is located below the through hole and is connected to the first oil outlet hole.

[0015] A further preferred solution of the utility model is that the lifting column is slidably and sealingly connected to the sliding hole, and when the blocking block blocks the first oil outlet hole, the end of the oil inlet channel is located below the sliding hole and corresponds to the through hole.

[0016] Compared with the prior art, the utility model has the following advantages: a lifting column is slidably provided on the mounting seat and passes through the sliding hole and the first oil outlet hole and extends into the second oil chamber; the lifting column and the first oil outlet hole are clearance-matched so that the lubricating oil can flow out through the first oil outlet hole; the first inclined surface of the blocking block on the lifting column cooperates with the second inclined surface of the elastic reset mechanism to simultaneously realize the opening or closing of the first oil outlet hole and the second oil outlet hole; when lubricating the electric chain saw, the lifting column is pressed to open the first oil outlet hole and the second oil outlet hole, and the electric chain saw can be lubricated; when lubrication is not needed, the lifting column is released to close the first oil outlet hole and the second oil outlet hole; the utility model is simple and quick, and the electric chain saw can be lubricated according to actual conditions, avoiding the waste of lubricating oil caused by continuing to supply oil to the saw chain during the transition of saw chain lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and should not be regarded as limiting the scope of the present invention. Furthermore, unless otherwise specified, the drawings only conceptually represent the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a preferred embodiment of the utility model;

[0019] Figure 2 It is a top view of a preferred embodiment of the utility model;

[0020] Figure 3 This is the preferred embodiment of the utility model Figure 2 Sectional view at AA in the middle;

[0021] Figure 4 This is the preferred embodiment of the utility model Figure 3 A partial enlarged view of the middle A;

[0022] Figure 5 This is one of the three-dimensional structural schematic diagrams of the oil storage tank, lifting column and oil outlet device in the preferred embodiment of the utility model;

[0023] Figure 6 This is the second schematic diagram of the three-dimensional structure of the oil storage tank, lifting column and oil outlet device in the preferred embodiment of the utility model;

[0024] Figure 7 It is a top view of the three-dimensional structure schematic diagram of the oil storage tank, lifting column and oil outlet device in the preferred embodiment of the utility model;

[0025] Figure 8 This is the preferred embodiment of the utility model Figure 7 Cross-sectional view at the middle BB.

[0026] In the figure: 1. electric chain saw body; 2. mounting base; 3. guide plate; 4. saw chain; 5. oil storage tank; 51. first oil chamber; 511. sliding hole; 512. first oil outlet hole; 513. guide slide groove; 514. strip hole; 515. inner cylinder; 516. through hole; 517. perforation; 52. second oil chamber; 521. second oil outlet hole; 6. lifting column; 61. blocking block; 611. first inclined surface; 62. oil inlet channel; 63. oil filling port; 64. cap; 7. elastic reset mechanism; 71. second inclined surface; 72. sliding block; 721. extrusion rod; 722. extrusion head; 73. reset spring; 8. oil outlet device; 81. oil inlet pipe; 82. oil outlet pipe; 83. oil bubble. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are only descriptive and exemplary and should not be construed as limiting the protection scope of the present invention.

[0028] It should be noted that like reference numerals denote similar items in the following drawings, and thus, once an item is defined in one drawing, it may not be further defined or explained in subsequent drawings.

[0029] This embodiment mainly describes an electric chain saw with a lubrication function, as follows:

[0030] like Figures 1 to 8As shown, an electric chain saw with a lubrication function comprises an electric chain saw body 1 and a mounting base 2 arranged on one side of the electric chain saw body 1 and fixedly connected to the electric chain saw body 1, wherein a guide plate 3 and a saw chain 4 are arranged in the mounting base 2, wherein the saw chain 4 surrounds the edge of the guide plate 3 and is sleeved on the guide plate 3, and an oil storage tank 5 is fixedly arranged on the mounting base 2, wherein the oil storage tank 5 is used to store lubricating oil, and wherein the oil storage tank 5 comprises a first oil chamber 51 and a second oil chamber 52, wherein the first oil chamber 51 is provided with a sliding hole 511 and a lubricating oil hole 512 connected to the second oil chamber 52 The first oil outlet hole 512 is provided at the bottom of the second oil chamber 52, and the second oil outlet hole 521 for lubricating the saw chain 4 is provided. The mounting seat 2 is slidably provided with a lifting column 6 that passes through the sliding hole 511 and the first oil outlet hole 512 and extends into the second oil chamber 52. The lifting column 6 is slidably sealed and connected with the sliding hole 511 to prevent the lifting column 6 from bringing out the lubricating oil when sliding up. The lifting column 6 is clearance-matched with the first oil outlet hole 512. When the lifting column 6 slides down, the lubricating oil can flow into the second oil outlet hole 512 through the first oil outlet hole In the cavity 52, the end of the lifting column 6 has a blocking block 61 for blocking the first oil outlet 512, and the blocking block 61 has a first inclined surface 611. An elastic reset mechanism 7 that can cover the second oil outlet 521 is slidably provided in the second oil cavity 52, and the elastic reset mechanism 7 has a second inclined surface 71 that is in contact with the first inclined surface 611. The first inclined surface 611 and the second inclined surface 71 have the same slope, and when the lifting column 6 slides up or down, the first inclined surface 611 and the second inclined surface 71 are always in contact with each other. When the lifting column 6 is pressed to slide down, the first inclined surface 611 squeezes the second inclined surface 71 to make the elastic reset mechanism 7 slide to expose the second oil outlet hole 521, and the blocking block 61 slides down with the lifting column 6 to make the lubricating oil in the first oil chamber 51 flow into the second oil chamber 52 through the first oil outlet hole 512, and flow out from the second oil outlet hole 521 to lubricate the saw chain 4; when the lifting column 6 is released, the elastic reset mechanism 7 is reset to close the second oil outlet hole 521, and the blocking block 61 slides up to the initial position to block the first oil outlet hole 512. By sliding on the mounting seat 2, a lifting column 6 is provided which passes through the sliding hole 511 and the first oil outlet hole 512 and extends into the second oil chamber 52. The first inclined surface 611 of the blocking block 61 on the lifting column 6 cooperates with the second inclined surface 71 of the elastic reset mechanism 7 to simultaneously realize the opening or closing of the first oil outlet hole 512 and the second oil outlet hole 521. When the electric chain saw needs to be lubricated, the lifting column 6 is pressed to open the first oil outlet hole 512 and the second oil outlet hole 521 to lubricate the electric chain saw. When lubrication is not needed, the lifting column 6 is released to close the first oil outlet hole 512 and the second oil outlet hole 521. This is simple and quick, and the electric chain saw can be lubricated according to actual conditions to avoid continued oil supply to the saw chain 4 during the lubrication transition of the saw chain 4, thereby causing waste of lubricating oil.

[0031] like Figure 4 and Figure 8As shown, the elastic reset mechanism 7 includes a sliding block 72 and a reset spring 73, the reset spring 73 is used to provide elastic force to the sliding block 72, the second inclined surface 71 is located on the sliding block 72, and a limiting groove for installing the reset spring 73 is provided on the inner wall of the second oil chamber 52, one end of the reset spring 73 abuts against the limiting groove of the inner wall of the second oil chamber 52, and the other end abuts against one end of the sliding block 72. Under normal circumstances, the sliding block 72 receives the elastic force of the reset spring 73 and abuts against the inner wall of the second oil chamber 52. The sliding block 72 has a baffle on the side close to the reset spring 73 to prevent the lubricating oil from flowing out of the first oil outlet 512 and flowing into the side of the reset spring 73.

[0032] Preferably, a guide groove 513 for the sliding block 72 to slide is provided at the bottom of the first oil chamber 51 , and the guide groove is used to guide the sliding block 72 to slide toward a preset track to prevent the sliding block 72 from deviating during the sliding process.

[0033] Preferably, an oil outlet device 8 corresponding to the saw chain 4 is provided at the bottom of the second oil outlet hole 521. Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, the oil outlet device 8 includes an oil inlet pipe 81, an oil outlet pipe 82 and an oil bubble 83. There is one oil inlet pipe 81 and two oil outlet pipes 82. The oil bubble 83 has connecting holes for connecting three oil inlet pipes 81 and two oil outlet pipes 82 respectively. One end of the oil inlet pipe 81 is fixedly connected to the second oil outlet hole 521. One end of the oil inlet pipe 81 connected to the second oil outlet is provided with sealing silicone. The sealing silicone is used to seal the oil inlet pipe 81 and the second oil outlet hole 521. The other end of the oil inlet pipe 81 is fixedly connected to the second oil outlet hole 521 through the connecting hole of the oil bubble 83. One ends of the two oil outlet pipes 82 are fixedly connected to the two sides of the oil bubble 83 through the two connecting holes of the oil bubble 83 respectively, and the other ends are provided above the saw chain 4. Preferably, the oil inlet pipe 81, the oil outlet pipe 82 and the oil bubble 83 are integrally formed and are made of plastic material. The two oil outlet pipes 82 are symmetrically provided on both sides of the oil bubble 83. The oil bubble 83 can play a role in temporarily storing oil. After the saw chain 4 is lubricated, when the first oil outlet hole 512 and the second oil outlet hole 521 are closed, the lubricating oil in the pipeline can be temporarily stored in the oil bubble 83 to avoid wasting the lubricating oil.

[0034] Preferably, a strip hole 514 is provided at the bottom of the guide groove 513, and a squeezing rod 721 is provided at the bottom of the sliding block 72 for squeezing the oil bubble 83 when sliding from the guide groove 513 through the strip hole 514. The end of the squeezing rod 721 is provided with an squeezing head 722 for squeezing the oil bubble 83. When the sliding block 72 slides to close the second oil outlet pipe 82, the squeezing rod 721 slides toward the oil bubble 83 with the sliding block 72 and squeezes the oil bubble 83, so that part of the oil in the oil bubble 83 is squeezed out through the oil outlet pipe 82 to lubricate the saw chain 4. The contact surface between the squeezing head 722 and the oil bubble 83 is a plane, the area of ​​the plane contact surface is moderate, and the corners are curved surfaces with smooth transitions to prevent the squeezing head 722 from puncturing the oil bubble 83 during the squeezing process.

[0035] like Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the lifting column 6 has an oil inlet channel 62 for conveying lubricating oil to the first oil chamber 51, and the top of the lifting column 6 has a refueling port 63, and a cap 64 is threadedly connected to the refueling port 63. When adding lubricating oil, the cap 64 is opened, and the lubricating oil is poured into the refueling port 63 and flows into the first oil chamber 51 from the oil inlet channel 62. After completion, the cap 64 can be covered.

[0036] Preferably, the first oil chamber 51 has a hollow inner cylinder 515, the inner cylinder 515 surrounds the first oil outlet hole 512, the lifting column 6 sequentially passes through the inner cylinder 515 and the first oil outlet hole 512 and extends into the second oil chamber 52, the inner cylinder 515 has a through hole 516 and a through hole 517 matched with the oil inlet channel 62, the through hole 517 is used to guide the lubricating oil in the oil inlet channel 62 into the first oil chamber 51, when the blocking block 61 blocks the first oil outlet hole 512, the end of the oil inlet channel 62 is located below the sliding hole 511 and corresponds to the through hole 517; the through hole 516 is located below the through hole 517 and communicates with the first oil outlet hole 512. The through hole 516 is used to guide the lubricating oil in the first oil chamber 51 to the first oil outlet hole 512, and then flows into the second oil chamber 52 through the first oil outlet hole 512.

[0037] When lubricating the electric chain saw, the lifting column 6 is pressed to make it slide down, and the blocking block 61 slides down with the lifting column 6, so that the first inclined surface 611 of the blocking block 61 squeezes the second inclined surface 71 of the sliding block 72, so that the sliding block 72 slides forward to expose the second oil outlet hole 521. The sliding of the blocking block 61 causes the lubricating oil in the first oil chamber 51 to flow from the through hole 516 into the first oil outlet hole 512 and into the second oil chamber 52. The lubricating oil flows out through the second oil outlet hole 521, and enters the oil bubble 83 through the oil inlet pipe 81. The oil in the oil bubble 83 flows out through the oil outlet pipe 82 to lubricate the saw chain 4. When the lifting column 6 is released, the sliding block 72 slides in the opposite direction under the elastic force of the reset spring 73 to close the second oil outlet 521, and the blocking block 61 slides up to the initial position to block the first oil outlet 512. The extrusion head 722 squeezes the oil bubble 83 as the sliding block 72 slides, and squeezes part of the lubricating oil in the oil bubble 83 onto the saw chain 4. This solution is simple and fast for lubricating the saw chain 4, and the electric chain saw can be lubricated according to actual conditions, avoiding the waste of lubricating oil caused by continuing to supply oil to the saw chain 4 during the transition of lubrication of the saw chain 4.

[0038] In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0039] The electric chain saw with lubrication function provided by the utility model is introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the utility model and its core ideas. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified. These improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. An electric chain saw with a lubricating function, comprising an electric chain saw body and a mounting seat arranged on one side of the electric chain saw body, wherein a guide plate and a saw chain are arranged in the mounting seat, and characterized in that: The mounting seat is fixed with an oil storage tank, the oil storage tank includes a first oil chamber and a second oil chamber, the first oil chamber is provided with a sliding hole and a first oil outlet hole connected with the second oil chamber, the bottom of the second oil chamber is provided with a second oil outlet hole for lubricating the saw chain, the mounting seat is slidably provided with a lifting column passing through the sliding hole and the first oil outlet hole and extending into the second oil chamber, the lifting column is clearance-matched with the first oil outlet hole, the end of the lifting column is provided with a blocking block for blocking the first oil outlet hole, the blocking block has a first inclined surface, and the second oil chamber slides in the lifting column. An elastic reset mechanism that can cover the second oil outlet hole is provided, and the elastic reset mechanism has a second inclined surface abutting against the first inclined surface. When the lifting column is pressed to slide down, the first inclined surface squeezes the second inclined surface to make the elastic reset mechanism slide and expose the second oil outlet hole. The blocking block slides down with the lifting column to make the lubricating oil in the first oil chamber flow into the second oil chamber through the first oil outlet hole, and flows out from the second oil outlet hole to lubricate the saw chain; when the lifting column is released, the elastic reset mechanism resets to close the second oil outlet hole, and the blocking block slides up to the initial position to block the first oil outlet hole.

2. The electric chain saw with lubrication function according to claim 1, characterized in that: The elastic reset mechanism comprises a sliding block and a reset spring. The second inclined surface is located on the sliding block. One end of the reset spring abuts against the inner wall of the second oil chamber, and the other end abuts against one end of the sliding block.

3. The electric chain saw with lubrication function according to claim 2, characterized in that: A guide groove for the sliding block to slide is provided at the bottom of the first oil chamber.

4. The electric chain saw with lubrication function according to claim 3, characterized in that: An oil outlet device corresponding to the saw chain is provided at the bottom of the second oil outlet hole, and the oil outlet device includes an oil inlet pipe, an oil outlet pipe and an oil bubble. One end of the oil inlet pipe is fixedly connected to the second oil outlet hole, and the other end is fixedly connected to the oil bubble. One end of the oil outlet pipe is fixedly connected to the oil bubble, and the other end is provided above the saw chain.

5. The electric chain saw with lubrication function according to claim 4, characterized in that: There are two oil outlet pipes, which are symmetrically arranged on both sides of the oil bubble. One end of the two oil outlet pipes is respectively fixedly connected to the two sides of the oil bubble, and the other end is respectively arranged above the two sides of the saw chain.

6. The electric chain saw with lubrication function according to claim 4, characterized in that: A strip hole is arranged at the bottom of the guide slide groove, and an extrusion rod for extruding the oil bubble when the sliding block slides from the guide slide groove through the strip hole at the bottom.

7. The electric chain saw with lubrication function according to claim 6, characterized in that: The end of the extrusion rod is provided with an extrusion head for extruding the oil bubble.

8. The electric chain saw with lubrication function according to claim 1, characterized in that: The lifting column is provided with an oil inlet passage for conveying lubricating oil to the first oil chamber, and the top of the lifting column is provided with a refueling port, and a cap is threadedly connected to the refueling port.

9. The electric chain saw with lubrication function according to claim 1, characterized in that: The first oil chamber has a hollow inner cylinder, which surrounds the first oil outlet hole. The lifting column passes through the inner cylinder and the first oil outlet hole in sequence and extends into the second oil chamber. The inner cylinder has a through hole and a through hole that matches the end of the oil inlet channel. The through hole is located below the through hole and is connected to the first oil outlet hole.

10. The electric chain saw with lubrication function according to claim 1, characterized in that: The lifting column is connected to the sliding hole in a sliding and sealing manner. When the blocking block blocks the first oil outlet hole, the end of the oil inlet channel is located below the sliding hole and corresponds to the through hole.

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