Electric chain saw

Abstract

According to the technical scheme, the electric chain saw comprises a shell; the battery is connected to the shell and provides energy; the motor is electrically connected to the battery to receive energy of the battery and output power; the transmission mechanism is connected to the motor and transmits power of the motor; the chain wheel is connected to the transmission mechanism and receives the power of the transmission mechanism to rotate; the saw chain is sleeved on the chain wheel and is driven by the chain wheel; the guide plate is connected to the shell and located between the saw chains to guide the saw chains; the cleaning part is arranged on the shell and rotates around the center of the chain wheel, and the relative rotation direction of the cleaning part is opposite to the rotation direction of the chain wheel, so that the effect of cleaning the chain saw to improve the stability is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of saws, in particular to an electric chain saw. BACKGROUND

[0002] Chain saws, also known as oil saws, are gasoline engine-powered portable saws mainly used for logging and timber production. The working principle of a chain saw is to perform a shearing action by the transverse movement of staggered L-shaped blades on a saw chain. Chain saws are generally classified into motorized chain saws and non-motorized chain saws. With the gradual development of chain saws, chain saws driven by batteries have gradually gained the favor of workers.

[0003] In related technologies, a battery-actuated chain saw disclosed in Chinese Patent No. CN100453229C includes an outer frame, a motor, and a battery. The outer frame includes a housing and a chain bar. The outer frame forms a front handle and a rear handle. The motor is connected to the outer frame. The battery is connected to the motor. The battery is located on the outer frame and is close to the front handle, so that the front and rear centers of gravity of the chain saw are close to the front handle. The battery is part of a detachable power pack connected to the outer frame. The power pack is arranged along the chain bar and is spaced apart from the front and rear center lines of the outer frame. The power pack includes an electrical connection side surface that is not arranged on the lateral side surface of the power pack.

[0004] However, in the current chain saw, sawdust is carried into the housing along with the movement of the saw chain during operation, resulting in the accumulation of sawdust and affecting the normal operation of the chain saw. Invention content

[0005] Therefore, it is necessary to provide an electric chain saw to solve the problem of sawdust accumulation.

[0006] To solve the above technical problems, the present application is implemented as follows:

[0007] In one embodiment, an electric chain saw is provided, characterized in that it comprises:

[0008] a housing;

[0009] a battery connected to the housing and providing energy;

[0010] a motor electrically connected to the battery to receive the energy of the battery and output power;

[0011] a transmission mechanism connected to the motor and transmitting the power of the motor;

[0012] a sprocket connected to the transmission mechanism and rotating to receive the power of the transmission mechanism;

[0013] a saw chain sleeved on the sprocket and driven by the sprocket;

[0014] A guide plate connected to the housing and located between the saw chains to guide the saw chains;

[0015] A cleaning member arranged in the housing and rotating with the center of the sprocket, the relative rotation direction of the cleaning member being opposite to the rotation direction of the sprocket.

[0016] In one or other preferred embodiments, a driving mechanism is further included to drive the cleaning member to rotate.

[0017] In one or other preferred embodiments, the driving mechanism includes a driving member connected to the cleaning member.

[0018] In one or other preferred embodiments, the driving mechanism includes a first bevel gear connected to a motor, a second bevel gear connected to the first bevel gear, and a third bevel gear connected to the second bevel gear, the third bevel gear being connected to the cleaning member.

[0019] In one or other preferred embodiments, the cleaning member includes a main body and cleaning bristles arranged on the main body.

[0020] In one or other preferred embodiments, the cleaning member further includes cleaning blades arranged on the main body, the cleaning blades being axial flow blades.

[0021] In one or other preferred embodiments, the cleaning blades are arranged alternately with the cleaning bristles.

[0022] In one or other preferred embodiments, the housing is provided with a mounting groove for mounting the sprocket, and an end wall of the cleaning bristles is in contact with or abuts against an inner wall of the mounting groove.

[0023] In one or other preferred embodiments, in the radial direction of the main body, the length of the cleaning bristles protrudes from a locus circle where an end surface of the cleaning blades is located.

[0024] In one or other preferred embodiments, a support is arranged between the cleaning bristles and the main body.

[0025] In the embodiments of the present application, the cleaning member arranged coaxially with the sprocket on the housing is used to clean the accumulated sawdust, which effectively reduces the accumulation of sawdust carried by the saw chains on the housing and reduces the probability of failure caused by the accumulation of sawdust. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 FIG. 1 is a schematic diagram of the overall structure of an electric chain saw in an embodiment of the present application;

[0027] Figure 2A cross-sectional view of a structure at a motor of the electric chain saw in an embodiment of the present application;

[0028] Figure 3 A schematic view of an internal structure of a cover plate of the electric chain saw in an embodiment of the present application;

[0029] Figure 4 A schematic view of a structure at a driving mechanism of the electric chain saw in an embodiment of the present application;

[0030] Figure 5 A cross-sectional view of a structure at a cover plate of the electric chain saw in an embodiment of the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS: 1, housing; 11, cover plate; 12, mounting groove; 2, battery; 3, motor; 4, transmission mechanism; 5, sprocket; 51, chain saw; 6, guide plate; 7, cleaning member; 71, main body portion; 72, cleaning bristles; 721, support member; 73, cleaning blade; 8, driving mechanism; 81, first bevel gear; 82, second bevel gear; 83, third bevel gear; DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced in a variety of ways beyond the specific embodiments described herein without departing from the spirit of the present application, and it is intended that the present application cover all such modifications and variations of the specific embodiments disclosed below. Therefore, the scope of the present application should be governed by the appended claims rather than by the description of the embodiments below.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or a specific number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can include at least one of the features, explicitly or implicitly. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] See Figure 1 and Figure 2 Figure 1 shows a schematic diagram of the overall structure of an electric chainsaw according to an embodiment of this application, and Figure 2 shows a cross-sectional schematic diagram of the structure of the motor of the electric chainsaw according to an embodiment of this application. The electric chainsaw provided in an embodiment of this application includes a housing 1, a battery 2, a motor 3, a transmission mechanism 4, a sprocket 5, a saw chain 51, a guide plate 6, and a cleaning component 7. The housing 1 may be a two-part structure connected together by screws. The housing 1 may have a connecting part connected to the battery 2 to provide energy. The motor 3 is electrically connected to the battery 2 to receive energy from the battery 2 and convert it into power output. The transmission mechanism 4 is connected to the motor 3 to transmit power. The sprocket 5 is connected to the transmission mechanism 4 to receive power from the transmission mechanism 4 and rotate. The saw chain 51 is sleeved on the sprocket 5. The guide plate 6 is connected to the housing 1 and located between the saw chains 51, guiding the saw chains 51 so that the saw chains 51 are driven by the sprocket 5 to cut wood.

[0039] The cleaning component 7 is mounted on the housing 1 and rotates around the center of the sprocket 5. The rotation direction of the cleaning component 7 is opposite to that of the sprocket 5. Since the sprocket 5 is driven by the sprocket 5 under the constraint of the guide plate 6, the opposite rotation direction of the cleaning component 7 and the sprocket 5 enables it to clean the debris on the saw chain 51. The rotation direction here is relative; it can be that the cleaning component 7 is stationary and the sprocket 5 is rotating, or it can be that the cleaning component 7 rotates in the opposite direction to the rotation of the sprocket 5.

[0040] In one or other preferred embodiments, the electric chainsaw further includes a drive mechanism 8 for driving the cleaning component 7 to rotate. The cleaning component 7 is driven by the drive mechanism 8 to rotate in the opposite direction to the saw chain 51, thereby cleaning the sawdust carried by the saw chain 51 and reducing the accumulation of sawdust.

[0041] In one or other preferred embodiments, the drive mechanism 8 includes a drive member, which may be an electric motor connected to the housing 1. The electric motor may be a separately configured motor 3, distinct from the motor 3, thereby driving the cleaning member 7 to move in the opposite direction to the rotation direction of the sprocket 5.

[0042] See Figure 3 and Figure 4 Figure 3 shows a schematic diagram of the internal structure of the cover plate of the electric chainsaw in one embodiment of this application, and Figure 4 shows a schematic diagram of the structure of the drive mechanism of the electric chainsaw in one embodiment of this application. In one or other preferred embodiments, the drive mechanism 8 may include a first bevel gear 81 connected to the motor 3, a second bevel gear 82 connected to the first bevel gear 81, and a third bevel gear 83 connected to the second bevel gear 82. The first bevel gear 81 is connected to the output shaft of the motor 3, the second bevel gear 82 meshes with the first bevel gear 81, the third bevel gear 83 meshes with the second bevel gear 82, and the third bevel gear 83 rotates concentrically with the sprocket 5. The third bevel gear 83 is disposed on the cleaning component 7, thereby realizing the opposite rotation of the cleaning component 7 and the sprocket 5 through the three bevel gears.

[0043] In one or other preferred embodiments, the cleaning component 7 includes a main body 71 and cleaning bristles 72 disposed on the main body 71. A third bevel gear 83 can be mounted on the main body 71 to drive the main body 71 to rotate. The cleaning bristles 72 can be flexible bristles attached to the side wall of the main body 71, have a certain degree of elasticity, and are capable of brushing the surface of the outer casing 1.

[0044] In one or other preferred embodiments, the cleaning component 7 further includes a cleaning blade 73 disposed on the main body 71, wherein the cleaning blade 73 may be integrally formed on the outer side wall of the main body 71 or may be mounted on the outer side wall of the main body 71. Preferably, the cleaning blade 73 may be an axial flow blade, which drives air to drive the housing 1 away from the inner side wall of the sprocket 5, thereby reducing the accumulation of debris there.

[0045] In one or other preferred embodiments, the cleaning blades 73 and the cleaning bristles 72 may be arranged alternately, that is, the cleaning blades 73 and the cleaning bristles 72 are arranged at intervals along the circumferential direction of the main body 71, so as to brush the debris while disturbing the airflow.

[0046] See Figure 4 and Figure 5 Figure 5 shows a cross-sectional view of the cover plate structure of an electric chainsaw according to one embodiment of this application. In one or other preferred embodiments, a cover plate 11 is connected to the outer casing 1, and the cover plate 11 can be bolted to the outer casing 1. A mounting groove 12 is provided on the cover plate 11, which accommodates the saw chain 51 and the sprocket 5 for rotation of the saw chain 51. The length of the cleaning bristles 72 is sufficient to contact or abut against the inner wall of the mounting groove 12, thereby facilitating coverage of the entire interior of the mounting groove 12.

[0047] In one or other preferred embodiments, the length of the cleaning bristles 72 may protrude beyond the trajectory circle where the end face of the cleaning blade 73 is located in the radial direction of the main body 71, that is, the diameter of the trajectory circle where the end wall of the cleaning bristles 72 is located is greater than the diameter of the trajectory circle where the end face of the cleaning blade 73 is located.

[0048] In one or other preferred embodiments, a support member 721 is provided between the cleaning bristles 72 and the main body 71. The support member 721 may be integrally formed on the main body 71 or mounted on the main body 71. The cleaning bristles 72 are mounted on the support member 721, thereby shortening the length of the cleaning bristles 72 while maintaining the coverage area of ​​the cleaning bristles 72 and increasing the hardness of the cleaning bristles 72.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An electric chainsaw, characterized in that, include: shell; A battery is connected to the casing and provides power; The motor is electrically connected to the battery to receive energy from the battery and output power. A transmission mechanism is connected to the motor and transmits the motor's power. A sprocket is connected to the transmission mechanism and receives power from the transmission mechanism to rotate. A saw chain, fitted onto and driven by the sprocket; A guide plate, connected to the housing and located between the saw chains, guides the saw chains; A cleaning component is disposed on the housing and rotates around the center of the sprocket, the relative rotation direction of the cleaning component being opposite to the rotation direction of the sprocket.

2. The electric chainsaw according to claim 1, characterized in that, It also includes a drive mechanism for rotating the cleaning component.

3. The electric chainsaw according to claim 2, characterized in that, The drive mechanism includes a drive component connected to the cleaning component.

4. The electric chainsaw according to claim 2, characterized in that, The drive mechanism includes a first bevel gear connected to a motor, a second bevel gear connected to the first bevel gear, and a third bevel gear connected to the second bevel gear, the third bevel gear being connected to the cleaning component.

5. The electric chainsaw according to claim 1, characterized in that, The cleaning component includes a main body and cleaning bristles disposed on the main body.

6. The electric chainsaw according to claim 5, characterized in that, The cleaning component also includes cleaning blades disposed on the main body, and the cleaning blades are axial flow blades.

7. The electric chainsaw according to claim 6, characterized in that, The cleaning blades and the cleaning bristles are arranged alternately.

8. The electric chainsaw according to claim 5, characterized in that, The outer casing has a mounting groove for mounting a sprocket, and the end wall of the cleaning bristles contacts or abuts against the inner wall of the mounting groove.

9. The electric chainsaw according to claim 6, characterized in that, In the radial direction of the main body, the length of the cleaning bristles extends beyond the trajectory circle where the end face of the cleaning blade is located.

10. The electric chainsaw according to claim 5, characterized in that, A support is provided between the cleaning bristles and the main body.

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