Speed regulating switch for electric tool

Abstract

The application discloses a speed regulating switch of an electric tool, which comprises a shell, an arc-shaped speed regulating part formed on the shell, a speed regulating switch installed in the shell, a push rod arranged on one side of the speed regulating switch and capable of linearly moving on the speed regulating switch for regulating the running speed of the electric tool, and a push button rotatably arranged on the arc-shaped speed regulating part, wherein the push button is provided with a containing cavity, at least a part of the push rod is arranged in the containing cavity, and the inner wall of the containing cavity can drive the push rod to linearly move when the push button rotates, so as to regulate the running speed of the electric tool. Through cooperation of the containing cavity and the push rod, when the push button rotates, the push rod in the containing cavity is abutted by the inner wall of the containing cavity and is driven to linearly move on the speed regulating switch, so as to regulate the speed of the electric tool, and the linearly moving regulating switch with low cost can be driven by the rotary motion of the push button.

Description

Technical Field

[0001] This application relates to the field of power tool technology, and in particular to a power tool speed control switch. Background Technology

[0002] The speed control switch of a power tool is a core component for controlling the motor speed, and its performance directly affects the user's operating experience and the tool's machining accuracy. Traditional speed control switches typically use linear sliding or rotary adjustment methods. However, for some power tools with special structures, the push button must be designed as a rotary structure. However, rotary speed control switches are often more expensive than linear sliding speed control switches due to their structural characteristics. Therefore, the purpose of this application is to find a lower-cost speed control method for power tools whose structure only allows for rotary adjustment.

[0003] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0004] Based on this, this application provides a power tool speed control switch to solve one of the above-mentioned technical problems.

[0005] The technical solution adopted by this application to solve its technical problem is a power tool speed control switch, comprising: a housing having an arc-shaped speed control part formed thereon; a speed control switch installed inside the housing, with a lever on one side capable of linear movement on the speed control switch for adjusting the running speed of the power tool; and a push button rotatably disposed on the arc-shaped speed control part, the push button having a receiving cavity, at least a portion of the lever being disposed within the receiving cavity, wherein when the push button is rotated, the inner wall of the receiving cavity can drive the lever to move linearly, thereby adjusting the running speed of the power tool.

[0006] In some embodiments, the housing has a movable hole, and at least a portion of the push button extends beyond the movable hole.

[0007] In some embodiments, the push button includes a pushing part, an abutting part, and a connecting part. The pushing part extends beyond the movable hole, the outer contour of the abutting part cooperates with the inner wall of the arc-shaped speed regulating part and can cover the movable hole, and the receiving cavity is disposed in the connecting part.

[0008] In some embodiments, the housing is composed of two half-housing units joined together, the movable hole is formed only on one half-housing unit, and a push-button movable groove extending to the other half-housing unit is formed on the movable hole.

[0009] In some embodiments, the pushing part extends out of the movable hole and can extend to both sides to form an extension, the bottom of which can cooperate with the push button movable groove.

[0010] In some embodiments, the push button movable groove is provided with a gear shift boss, and the bottom of the extension part can pass through the gear shift boss and provide resistance.

[0011] In some embodiments, the lever is cylindrical, and the diameter of the inscribed circle of the receiving cavity is larger than the diameter of the lever.

[0012] The beneficial effects of this application are as follows: through the cooperation of the receiving cavity and the lever, when the push button is rotated, the lever located in the receiving cavity will be abutted and driven by the inner wall of the receiving cavity, and will make linear motion on the speed control switch, thereby adjusting the speed of the power tool, so that the low-cost linear motion adjustment switch can be driven by the rotational motion of the push button; at the same time, the gear shift boss can provide resistance when the push button is turned to increase the gear shift feel and optimize the user experience. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structure of the present application and a partially enlarged schematic diagram.

[0015] Figure 2 This is a schematic diagram of the exploded structure of this application.

[0016] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Arc-shaped speed regulating part; 12. Movable hole; 121. Push button movable groove; 1211. Gear position boss; 13. Half housing; 2. Speed ​​regulating switch; 21. Lever; 3. Push button; 31. Receiving cavity; 32. Pushing part; 321. Extension part; 33. Abutting part; 34. Connecting part. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0018] In the embodiments of this application, please refer to Figure 1-2As shown, this application provides a power tool speed control switch, mainly comprising: a housing 1, on which an arc-shaped speed control part 11 is formed; a speed control switch 2, installed inside the housing 1, with a lever 21 on one side capable of linear movement on the speed control switch 2 for adjusting the running speed of the power tool; and a push button 3, rotatably mounted on the arc-shaped speed control part 11, the push button 3 having a receiving cavity 31, at least a portion of the lever 21 being disposed within the receiving cavity 31, wherein when the push button 3 rotates, the inner wall of the receiving cavity 31 can drive the lever 21 to move linearly, thereby adjusting the running speed of the power tool.

[0019] Specifically, when the push button 3 is moved, the receiving cavity 31 provided on the push button 3 will contact the lever 21. Under the continuous force of the push button 3, the lever 21 will be forced to move linearly and its relative position in the receiving cavity 31 will change continuously. Therefore, the push button 3, which is rotating, can drive the lever 21 to move linearly, so that the push button 3 can drive the speed control switch 2, which has a lower cost and makes linear movement.

[0020] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0021] Specifically, in order to enable the user to drive the push button 3, the housing 1 has an active hole 12, and at least a portion of the push button 3 extends beyond the active hole 12.

[0022] Reference Figure 2 As shown, the push button 3 includes a pushing part 32, an abutting part 33, and a connecting part 34. The pushing part 32 extends beyond the movable hole 12. The outer contour of the abutting part 33 matches the inner wall of the arc-shaped speed regulating part 11 and can cover the movable hole 12. The receiving cavity 31 is disposed in the connecting part 34. The pushing part 32 can serve as a medium for the user to drive the push button 3. The abutting part 33 can ensure that the movable hole 12 is always closed when the push button 3 rotates, preventing foreign objects from entering the interior of the housing 1.

[0023] Specifically, the housing 1 is composed of two half-housing units 13 joined together. The movable hole 12 is only formed on one of the half-housing units 13, and a push button movable groove 121 extending to the other half-housing unit 13 is formed on the movable hole 12. The pushing part 32 extends out from the movable hole 12 and can extend to both sides to form extension parts 321. The bottom of the extension parts 321 can cooperate with the push button movable groove 121. In this configuration, the extension parts 321 can increase the force application area of ​​the push button 3 without affecting the volume of the push button 3 inside the housing 1.

[0024] Reference Figure 1As shown, the push button movable groove 121 is provided with a gear shift boss 1211. The bottom of the extension part 321 can pass through the gear shift boss 1211 and provide resistance. When the push button 3 passes through the gear shift boss 1211, it will undergo recoverable deformation due to the plastic properties and make the user feel the resistance of shifting gears, which is the gear shift feel.

[0025] Furthermore, the lever 21 is cylindrical, and the diameter of the inscribed circle of the receiving cavity 31 is larger than the diameter of the lever 21. With this configuration, when the push button 3 is rotated, the receiving cavity 31 cannot drive the lever 21 to undergo nonlinear motion, thereby affecting the performance of the speed control switch 2.

[0026] The various embodiments of this application have been described in detail above. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description. Finally, it should be noted that the above descriptions are merely preferred embodiments of this application, and the foregoing embodiments are only used to illustrate the technical solutions of this application, not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A speed control switch for power tools, characterized in that, include: The housing has an arc-shaped speed regulating section formed thereon; The speed control switch is installed inside the housing, and a lever that can move linearly on one side of the speed control switch is provided to adjust the running speed of the power tool. A push button is rotatably mounted on the arc-shaped speed regulating part. The push button has a receiving cavity, and at least part of the lever is disposed in the receiving cavity. When the push button is rotated, the inner wall of the receiving cavity can drive the lever to make linear movement, thereby adjusting the running speed of the power tool.

2. The power tool speed control switch according to claim 1, characterized in that, The housing has a movable hole, and at least a portion of the push button extends beyond the movable hole.

3. A power tool speed control switch according to claim 2, characterized in that, The push button includes a pushing part, a contacting part, and a connecting part. The pushing part extends beyond the movable hole. The outer contour of the contacting part matches the inner wall of the arc-shaped speed regulating part and can cover the movable hole. The receiving cavity is disposed in the connecting part.

4. A power tool speed control switch according to claim 3, characterized in that, The housing is composed of two half-shells joined together, and the movable hole is only opened on one of the half-shells, with a push button movable groove extending to the other half-shell formed on the movable hole.

5. A power tool speed control switch according to claim 4, characterized in that, The pushing part extends out of the movable hole and can extend to both sides to form an extension part, the bottom of which can cooperate with the movable groove of the push button.

6. A power tool speed control switch according to claim 5, characterized in that, The push button movable groove is provided with a gear shift boss, and the bottom of the extension part can pass through the gear shift boss and provide resistance.

7. A power tool speed control switch according to claim 1, characterized in that, The lever is cylindrical, and the diameter of the inscribed circle of the receiving cavity is larger than the diameter of the lever.

Images