Switch structure of electric tool

Abstract

The utility model discloses a switch structure of an electric tool, and the structure comprises a ship-shaped switch which is used as a switch of the electric tool; one side of the bottom of the button is provided with a contact part used for being matched with the rocker switch, the bottom of the button is further provided with a connecting part, the tail end of the connecting part is provided with a first spring used for resetting the button, the connecting part is provided with a limiting groove, and the limiting groove comprises a locking section and a sliding section; the locking button is arranged in the limiting groove in the direction perpendicular to the button, a limiting rod is arranged on the locking button, the limiting rod can move in the sliding section, a limiting part is formed on the limiting rod and used for being matched with the locking section, and the tail end of the limiting rod is sleeved with a second spring; and the button is limited by the limiting part in a normal state and cannot be pressed until the locking button is pressed, and the limiting part is separated from the limitation of the locking section, so that the button enters a pressed state.

Description

Technical Field

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

[0002] In the field of power tools, to ensure safety and prevent accidental activation, many international standards stipulate that starting a power tool often requires two steps: pressing inwards and then pushing forwards. See Chinese utility model patent application CN2015201893155, which includes a bottom shell and a top shell. The bottom shell and top shell are interlocked to form a housing. A locking button hole is located on the outer side of the bottom shell. The locking button is located within the locking button hole via a spring mechanism. The locking rod is fixedly connected to the locking button with an interference fit using a Christmas tree-shaped inverted tooth design. A trigger is located on the top of the housing, and the trigger is in contact with a push rod inside the housing. The lifting rod and the push rod are fixedly connected with an interference fit.

[0003] It is evident that the switches inside power tools currently on the market often have complex structures, resulting in large space occupation and high production costs.

[0004] The purpose of this application is to design a switch structure that is simple, compact, and low in manufacturing cost.

[0005] 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

[0006] Based on this, this application provides a switch structure for a power tool to solve one of the aforementioned technical problems.

[0007] The technical solution adopted by this application to solve its technical problem is a switch structure for an electric tool, including: a rocker switch, serving as the switch of the electric tool; a button, wherein a contact is provided on one side of the bottom of the button for cooperating with the rocker switch, and a connecting part is also provided at the bottom of the button, wherein a first spring is provided at the end of the connecting part for resetting the button, and a limiting groove is formed on the connecting part, the limiting groove including a locking section and a sliding section; a locking button, wherein the locking button is disposed in the limiting groove in a direction perpendicular to the button, the locking button is provided with a limiting rod, the limiting rod being movable within the sliding section, a limiting part is formed on the limiting rod for cooperating with the locking section, and a second spring is sleeved at the end of the limiting rod; the button is normally restricted by the limiting part and cannot be pressed until the locking button is pressed, at which point the limiting part is released from the restriction of the locking section, allowing the button to enter a pressable state.

[0008] In some embodiments, the connecting portion is a cavity, and the limiting rod and the second spring are located inside the cavity.

[0009] In some embodiments, the limiting groove is disposed on one side of the connecting portion, and the other side of the connecting portion is an opening, through which the limiting rod and the second spring can freely pass.

[0010] In some embodiments, under normal conditions, one side of the limiting portion is flush with the side of the connecting portion where the limiting groove is provided.

[0011] In some embodiments, the pressing depth required to unlock the locking button is equal to the thickness of the plate surface where the limiting groove is located.

[0012] In some embodiments, the limiting portion and the locking segment are geometrically matched.

[0013] The beneficial effects of this application are as follows: This application can lock the button in its normal state by using two springs and matching buttons. By pressing the normally movable locking button, the limiting part is driven to move downward, so that the button is converted into a pressable state. The locking of the power tool is accomplished by using only two springs and a specially constructed button and locking button in combination with a low-cost rocker switch. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the normal three-dimensional structure of this application.

[0016] Figure 2 This is a schematic diagram of the button press state in this application.

[0017] Figure 3 This is a schematic diagram of the button in the pressed state from another perspective.

[0018] The reference numerals in the attached diagram are as follows: 1. Rocker switch; 2. Button; 21. Contact; 22. Connecting part; 221. First spring; 222. Limiting groove; 2221. Locking section; 2222. Sliding section; 223. Cavity; 3. Locking button; 31. Limiting rod; 32. Limiting part; 33. Second spring. Detailed Implementation

[0019] 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.

[0020] In the embodiments of this application, please refer to Figure 1-3 As shown, this application provides a switch structure for a power tool, mainly including: a rocker switch 1, serving as the switch for the power tool; a button 2, wherein a contact 21 is provided on one side of the bottom of the button 2 for cooperating with the rocker switch 1, and a connecting part 22 is also provided at the bottom of the button 2, wherein a first spring 221 is provided at the end of the connecting part 22 for resetting the button 2, and a limiting groove 222 is provided on the connecting part 22, wherein the limiting groove 222 includes a locking section 2221 and a sliding section 2222; and a locking button 3. 3 is arranged in the limiting groove 222 in a direction perpendicular to the button 2. The locking button 3 is provided with a limiting rod 31. The limiting rod 31 can move within the sliding section 2222. A limiting part 32 is formed on the limiting rod 31 for cooperating with the locking section 2221. A second spring 33 is sleeved at the end of the limiting rod 31. The button 2 is restricted by the limiting part 32 and cannot be pressed under normal conditions. Until the locking button 3 is pressed, the limiting part 32 is released from the restriction of the locking section 2221, and the button 2 enters the pressable state.

[0021] Specifically, the limiting part 32 is always at the same height as the locking section 2221 under normal conditions. This prevents the button 2 from sliding within the sliding section 2222 when it is pressed. The limiting part 32 restricts the pressing of the button 2 until the locking button 3 is pressed, causing the limiting part 32 to disengage from the locking section 2221. The limiting rod 31 can then enter the sliding section 2222 as the button 2 is pressed, and the contact 21 will touch the other end of the rocker switch 1 to achieve the opening effect. Furthermore, this allows for two additional embodiments after the button 2 is pressed:

[0022] Firstly, by continuously pressing button 2 and releasing locking button 3, the rebound force of the second spring 33 is greater than that of the first spring 221. The limiting part 32 can restrict the rebound of button 2 under the action of the second spring 33, or a groove is opened at a preset position to cooperate with the limiting part 32 until the locking button 3 is pressed again. This can simultaneously restrict the rebound of button 2 and prevent button 2 from being pressed.

[0023] Secondly, when the pressing button 2 and the locking button 3 are released simultaneously, both button 2 and the locking button 3 will return to their normal state through the rebound force of the first spring 221 and the second spring 33, and the limiting part 32 will restrict the pressing of button 2 again.

[0024] 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.

[0025] Reference Figure 3 As shown, in order to reduce the weight of button 2 and reduce the depth to which the locking button 3 needs to be pressed, the inside of the connecting part 22 is a cavity 223, and the limiting rod 31 and the second spring 33 are located inside the cavity 223.

[0026] Specifically, in order to prevent the locking button 3 from interfering with the connecting part 22 during the pressing process, the limiting groove 222 is provided on one side of the connecting part 22, and the other side of the connecting part 22 is an opening, through which the limiting rod 31 and the second spring 33 can pass freely.

[0027] Preferably, under normal conditions, one side of the limiting part 32 is flush with the side of the connecting part 22 where the limiting groove 222 is provided. This arrangement can enhance the compactness and safety of the structure while ensuring smooth operation and preventing accidental touch or displacement.

[0028] Specifically, the pressing depth required for the locking button 3 to unlock is equal to the thickness of the plate surface where the limiting groove 222 is located, ensuring that when the locking button 3 is pressed to the position required for unlocking, the limiting rod 31 can completely disengage from the limiting groove 222, thereby achieving a fast and stable unlocking action.

[0029] Reference Figure 2 As shown, the limiting part 32 and the locking segment 2221 are geometrically matched. By designing the limiting part 32 and the locking segment 2221 to have similar contours, the stability and reliability during use are effectively enhanced, and the risk of operational errors caused by structural mismatch is reduced. The shape of the limiting part 32 and the locking segment 2221 can be any shape. However, it is necessary to ensure that the width of the geometric shape of the limiting part 32 and the locking segment 2221 is not less than the width of the sliding segment 2222 to prevent the limiting part 32 from entering the sliding segment 2222.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. 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. Such 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 switch structure for a power tool, characterized in that, include: A rocker switch, used as a switch for power tools; A button, wherein a contact is provided on one side of the bottom of the button for cooperating with the rocker switch, and a connecting part is also provided at the bottom of the button, wherein a first spring is provided at the end of the connecting part for resetting the button, and a limit groove is provided on the connecting part, wherein the limit groove includes a locking section and a sliding section; A locking button is provided in the limiting groove in a direction perpendicular to the button. The locking button is provided with a limiting rod that can move within the sliding section. A limiting part is formed on the limiting rod for cooperating with the locking section. A second spring is sleeved at the end of the limiting rod. The button is normally restricted by the limiting part and cannot be pressed until the locking button is pressed. Then the limiting part is released from the locking section, allowing the button to enter the pressable state.

2. The switching structure of a power tool according to claim 1, characterized in that, The connecting part has a cavity inside, and the limiting rod and the second spring are located inside the cavity.

3. The switching structure of a power tool according to claim 1, characterized in that, The limiting groove is located on one side of the connecting part, and the other side of the connecting part is an opening, through which the limiting rod and the second spring can pass freely.

4. The switching structure of a power tool according to claim 1, characterized in that, Under normal conditions, one side of the limiting part is flush with the side of the connecting part where the limiting groove is provided.

5. The switching structure of a power tool according to claim 1, characterized in that, The pressing depth required to unlock the locking button is equal to the thickness of the plate surface where the limiting groove is located.

6. The switching structure of a power tool according to claim 1, characterized in that, The limiting part and the locking segment are geometrically matched.

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