Electric tool

Abstract

The utility model provides an electric tool which comprises a shell, a motor, a power transmission mechanism, an output mechanism and a speed switching push button, the shell comprises a holding shell, a main body shell and a battery assembling part which are arranged in the vertical direction, the main body shell is located above the holding shell, and the battery assembling part is located below the holding shell; the motor is accommodated in the main body housing, the power transmission mechanism transmits the rotating force generated by the motor to the output mechanism, the output mechanism comprises a main shaft, and the rotating speed of the main shaft can be switched from one of a first speed and a second speed to the other by operating the speed switching push button; when the speed switching push button is located at the first position, the rotating speed of the main shaft is a first speed; when the speed switching push button is located at the second position, the rotating speed of the main shaft is a second speed; when the speed switching push button is located at the first position, the projection of the speed switching push button in the vertical direction is not overlapped with the projection of the motor in the vertical direction.

Description

Technical Field

[0001] This application relates to the field of tools, and particularly to a power tool. Background Art

[0002] In the prior art, a lithium-ion drill includes a speed switching push button, which is disposed on the upper part of the main body housing. The speed switching push button is operated by an operator to move forward or backward. By operating the speed switching push button, the rotational speed of the main shaft can be switched from one of a first speed and a second speed to the other, where the first speed is different from the second speed. On the one hand, the speed switching push button is higher than the surface of the housing, and when the whole machine drops, it is easy to cause the speed switching push button to be damaged first, affecting the function. On the other hand, the speed switching push button is relatively rearward, which is likely to affect the air outlet located at the rear.

[0003] Therefore, it is necessary to provide a new lithium-ion drill. Summary of the Utility Model

[0004] This application provides a power tool with good safety performance and convenient operation.

[0005] Specifically, this application provides a power tool, which includes a housing, a motor, a power transmission mechanism, and an output mechanism. The housing includes a gripping housing, a main body housing, and a battery assembly part. The gripping housing and the main body housing are arranged in the up-down direction, the main body housing is located above the gripping housing, and the battery assembly part is located below the gripping housing. The motor is housed in the main body housing. The power transmission mechanism transmits the rotational force generated by the motor to the output mechanism. The output mechanism includes a main shaft. The power tool further includes a speed switching push button. By operating the speed switching push button, the rotational speed of the main shaft can be switched from one of a first speed and a second speed to the other, where the second speed is different from the first speed. When the speed switching push button is in the first position, the rotational speed of the main shaft is the first speed. When the speed switching push button is in the second position, the rotational speed of the main shaft is the second speed. When the speed switching push button is in the first position, the projection of the speed switching push button in the up-down direction does not overlap with the projection of the motor in the up-down direction.

[0006] Further, when the speed switching push button is in the second position, the projection of the speed switching push button in the up-down direction at least partially overlaps with the projection of the motor in the up-down direction.

[0007] Further, the main body housing is provided with a pit recessed from its outer surface, and the speed switching push button is located in the pit and does not protrude out of the pit.

[0008] Further, the main body housing is provided with an opening penetrating the bottom wall of the recess, and the speed switching push button is exposed from the opening and located within the recess.

[0009] Further, the main shaft extends in the front - rear direction, and the front - rear direction is perpendicular to the up - down direction; by moving the speed switching push button forward or backward, the rotational speed of the main shaft is switched from one of the first speed and the second speed to the other.

[0010] Further, by moving the speed switching push button forward, the rotational speed of the main shaft is switched from the second speed to the first speed; by moving the speed switching push button backward, the rotational speed of the main shaft is switched from the first speed to the second speed.

[0011] Further, in the front - rear direction, the main body housing includes a first convex portion in front of the recess and a second convex portion behind the recess; in the up - down direction, the top surface of the speed switching push button is lower than the top surfaces of the first convex portion and the second convex portion.

[0012] Further, in the front - rear direction, the main body housing includes a first convex portion in front of the recess and a second convex portion behind the recess; the top surface of the speed switching push button is flush with the top surface of the first convex portion and the top surface of the speed switching push button is flush with the top surface of the second convex portion.

[0013] Further, the power tool further includes an outer cover and a rear cover. A part of the outer cover is inserted into the opening in the front of the main body housing, at least a part of the power transmission mechanism is received in the outer cover, and the opening in the rear of the main body housing is covered by the rear cover.

[0014] Further, the housing includes a first half - shell and a second half - shell. The first half - shell is provided with fixing posts, and the second half - shell is provided with fixing holes. The fixing posts are inserted into the fixing holes so that the first half - shell and the second half - shell are assembled together.

[0015] In this application, when the speed switching push button is in the first position, the projection of the speed switching push button in the up - down direction does not overlap with the projection of the motor in the up - down direction. With this design, the speed switching push button is relatively forward and will not affect the air outlet located at the rear. Description of the Drawings

[0016] Figure 1 is a schematic structural view of the power tool of this application when the speed switching push button is in the second position.

[0017] Figure 2 is Figure 1 the exploded perspective view of the electric tool shown.

[0018] Figure 3 is Figure 1 the structural schematic view of the electric tool shown from another perspective.

[0019] Figure 4 is Figure 3 the exploded perspective view of the electric tool shown.

[0020] Figure 5 is Figure 1 the structural schematic view of the electric tool shown when the speed switching push button is in the first position.

[0021] Figure 6 is Figure 5 the exploded perspective view of the electric tool shown.

[0022] Figure 7 is Figure 3 the structural schematic view of the electric tool shown from another perspective.

[0023] Figure 8 is Figure 7 the exploded perspective view of the electric tool shown.

[0024] Figure 9 is Figure 8 the further exploded perspective view of the electric tool shown. Detailed implementation manners

[0025] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application.

[0026] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings understood by those of ordinary skill in the field to which this utility model belongs. The "first", "second" and similar terms used in this application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. "Plurality" or "several" means two or more. Unless otherwise indicated, the similar terms such as "front part", "rear part", "lower part" and / or "upper part" are for convenience of description only and are not limited to a position or a spatial orientation. The terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms of "a", "the" and "said" used in the specification and claims of this application are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0027] Please refer to Figures 1 to 9 , this application provides a power tool 100, which includes a housing 10, a cover 20, a rear cover 30, a motor 40, a power transmission mechanism 50 and an output mechanism 60. The housing 10 includes a grip housing 11, a main housing 12 and a battery assembly portion 70. The grip housing 11 and the main housing 12 are arranged in the up-down direction, the main housing 12 is located above the grip housing 11, and the battery assembly portion 70 is located below the grip housing 11. The output mechanism 60 includes a main shaft that extends in the front-rear direction, wherein the front-rear direction is perpendicular to the up-down direction. The opening at the rear of the main housing 12 is covered by the rear cover 30. A part of the cover 20 is inserted into the opening at the front of the main housing 12, and at least a part of the power transmission mechanism 50 is received in the cover 20. The motor 40 is received in the main housing 12, and the power transmission mechanism 50 transmits the rotational force generated by the motor 40 to the output mechanism 60. The power tool further includes a speed switching push button 80. By operating the speed switching push button 80, the rotational speed of the main shaft can be switched from one of a first speed and a second speed to the other, wherein the second speed is different from the first speed. In this application, the first speed is less than the second speed.

[0028] By moving the speed switching push button 80 forward or backward, the rotational speed of the main shaft is switched from one of the first speed and the second speed to the other. In this application, by moving the speed switching push button 80 forward, the rotational speed of the main shaft is switched from the second speed to the first speed; by moving the speed switching push button 80 backward, the rotational speed of the main shaft is switched from the first speed to the second speed. When the speed switching push button 80 moves forward and is in the first position, the rotational speed of the main shaft is the first speed; when the speed switching push button 80 moves backward and is in the second position, the rotational speed of the main shaft is the second speed. When the speed switching push button 80 is in the first position, the projection of the speed switching push button 80 in the up-down direction does not overlap with the projection of the motor 40 in the up-down direction. When the speed switching push button 80 is in the second position, the projection of the speed switching push button 80 in the up-down direction at least partially overlaps with the projection of the motor 40 in the up-down direction.

[0029] The housing 10 includes a first half housing 13 and a second half housing 14. The first half housing 13 is provided with fixing posts 131, and the second half housing 14 is provided with fixing holes 141. The fixing posts 131 are inserted into the fixing holes 141 so that the first half housing 13 and the second half housing 14 are assembled together.

[0030] The main body housing 12 is provided with a recess 121 recessed from its outer surface. The speed switching push button 80 is located within the recess 121 and does not protrude outside the recess 121. The main body housing 12 is further provided with an opening 122 penetrating the bottom wall of the recess 121, and the speed switching push button 80 is exposed from the opening 122 and is located within the recess 121.

[0031] In the front-rear direction, the main body housing 12 includes a first convex portion 123 in front of the recess 121 and a second convex portion 124 behind the recess 121. In some embodiments, in the up-down direction, the top surface 81 of the speed switching push button 80 is lower than the first top surface 125 of the first convex portion 123 and the second top surface 126 of the second convex portion 124. In some other embodiments, the top surface 81 of the speed switching push button 80 is flush with the first top surface 125 of the first convex portion 123, and the top surface 81 of the speed switching push button 80 is flush with the second top surface 126 of the second convex portion 124.

[0032] In this application, on the one hand, when the speed switching push button 80 is in the first position, the projection of the speed switching push button 80 in the up-down direction does not overlap with the projection of the motor 40 in the up-down direction. With such a design, the speed switching push button 80 is relatively forward and will not affect the air outlet located at the rear. On the other hand, the speed switching push button 80 is located within the recess 121 formed by the depression of the outer surface of the main body housing 12 and does not protrude outside the recess 121. When the entire power tool 100 drops, the speed switching push button 80 can be prevented from being damaged.

[0033] The above are only the preferred embodiments of the present application, and do not impose any form of limitation on the present application. Although the present application has been disclosed above with the preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to equivalent embodiments of equivalent changes within the scope of the technical solution of the present application by using the above-disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present application, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the scope of the technical solution of the present application.

Claims

1. An electric tool, comprising a housing, a motor, a power transmission mechanism and an output mechanism, the housing comprising a holding housing, a main body housing and a battery assembly portion, the holding housing and the main body housing are arranged in a vertical direction, the main body housing is located above the holding housing, and the battery assembly portion is located below the holding housing, the motor is accommodated in the main body housing, the power transmission mechanism transmits the rotational force generated by the motor to the output mechanism, the output mechanism comprises a spindle, and the electric tool further comprises a speed switching push button, by operating the speed switching push button, the rotational speed of the spindle can be switched from one of a first speed and a second speed to the other, the second speed is different from the first speed, and is characterized in that When the speed switch button is in the first position, the rotation speed of the spindle is the first speed; when the speed switch button is in the second position, the rotation speed of the spindle is the second speed; when the speed switch button is in the first position, the projection of the speed switch button in the up and down directions does not overlap with the projection of the motor in the up and down directions.

2. The electric tool according to claim 1, characterized in that: When the speed switch push button is located at the second position, a projection of the speed switch push button in the up-down direction at least partially overlaps with a projection of the motor in the up-down direction.

3. The electric tool according to claim 1, characterized in that: The main body shell is provided with a pit sunken from its outer surface, and the speed switching push button is located in the pit and does not protrude outside the pit.

4. The electric tool according to claim 3, characterized in that: The main body shell is provided with an opening penetrating through the bottom wall of the pit, and the speed switching push button is exposed from the opening and is located in the pit.

5. The electric tool according to claim 4, characterized in that: The main shaft extends in a front-to-rear direction, which is perpendicular to the up-down direction; by moving the speed switching button toward the front or toward the rear, the rotation speed of the main shaft is switched from one of the first speed and the second speed to the other.

6. The electric tool according to claim 5, characterized in that: By moving the speed switch button forward, the rotation speed of the spindle is switched from the second speed to the first speed; by moving the speed switch button backward, the rotation speed of the spindle is switched from the first speed to the second speed.

7. The electric tool according to claim 5, characterized in that: In the front-to-back direction, the main shell includes a first protrusion located in front of the pit and a second protrusion located behind the pit; in the up-down direction, the top surface of the speed switch button is lower than the top surface of the first protrusion and the top surface of the second protrusion.

8. The electric tool according to claim 5, characterized in that: In the front-to-back direction, the main body shell includes a first protrusion located in front of the pit and a second protrusion located behind the pit; the top surface of the speed switch push button is flush with the top surface of the first protrusion, and the top surface of the speed switch push button is flush with the top surface of the second protrusion.

9. The electric tool according to claim 5, characterized in that: The electric tool further includes an outer cover and a rear cover. A portion of the outer cover is inserted into the front opening of the main housing. At least a portion of the power transmission mechanism is accommodated in the outer cover. The rear opening of the main housing is covered by the rear cover.

10. The electric tool according to claim 1, characterized in that: The housing includes a first half shell and a second half shell, the first half shell is provided with a fixing column, the second half shell is provided with a fixing hole, the fixing column is inserted into the fixing hole, so that the first half shell and the second half shell are assembled together.

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