Self-locking structure of electric tool switch

Abstract

The utility model relates to the technical field of electric tools, in particular to a self-locking structure of an electric tool switch. The switch button is arranged in the shell, and a positioning plate is mounted in the switch button; the self-locking mechanism comprises a connecting rod, a mounting ring, a locking ball and a first spring, a convex block is fixedly arranged on the connecting rod, and an operating rod is mounted at one end of the connecting rod and used for carrying out self-locking and anti-self-locking on the switch button; the operating rod is driven to rotate, the protruding block deflects and blocks the positioning plate, and the switch button cannot be pressed. The self-locking electric tool has the advantages that the self-locking mechanism is arranged, it is ensured that misoperation of the switch can be effectively prevented when needed, the current state can be kept unchanged even under accidental touch or external force, the safety of the electric tool in the using process is greatly improved, a user can complete switching of the self-locking state and the anti-self-locking state only through simple operation, and the user experience is improved. Complex steps are not needed, and the working efficiency and the use experience are improved.

Description

Technical Field

[0001] The present application relates to the technical field of electric tools, and in particular to a self-locking structure of an electric tool switch. Background Art

[0002] With the rapid development of industrial technology and power tools, the requirements for operational safety and convenience are increasing. As a key component for controlling the on and off of the power supply, the stability and reliability of the switch in the power tool directly affect the performance of the tool and the safety of the user. Traditional power tool switches usually only have simple on and off functions and lack an effective self-locking mechanism, which may lead to misoperation in continuous operation or specific application scenarios, which not only affects work efficiency but also may cause safety accidents.

[0003] In response to this problem, the present application proposes a self-locking structure for an electric tool switch to solve the problem. Summary of the invention

[0004] The purpose of this application is to solve at least one of the technical deficiencies.

[0005] To this end, one purpose of the present application is to propose a self-locking structure for an electric tool switch to solve the problems mentioned in the background technology and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the present application provides a self-locking structure of an electric tool switch, comprising: a housing; a switch button, which is built into the housing and has a positioning plate installed inside; a self-locking mechanism, comprising a connecting rod, a mounting ring, a locking ball and a first spring, wherein a protrusion is fixedly provided on the connecting rod, and an operating rod is installed at one end of the connecting rod for self-locking and anti-self-locking of the switch button; the operating rod is driven to rotate, the protrusion deflects and blocks the positioning plate, and the switch button cannot be pressed; the operating rod is driven to reset, the protrusion no longer blocks the positioning plate, and the switch button can be pressed; the switch button is pressed and the operating rod is driven, the protrusion deflects and blocks the positioning plate, and the switch button cannot be reset; the operating rod is driven again to reset, the protrusion no longer blocks the positioning plate, and the switch button can be reset.

[0007] Preferably, any of the above schemes is that a connecting hole is provided on the positioning plate for cooperating with the connecting rod, and a groove is provided in the connecting hole for cooperating with the protrusion; two first baffles are installed at one end of the positioning plate, and two second baffles are installed at the other end of the positioning plate.

[0008] Preferably, any of the above schemes is that sliding grooves are provided on both outer walls of the switch button, and a through hole is provided on the switch button for matching with the connecting rod; side panels are installed at both ends of the switch button, and positioning holes are provided on both side panels.

[0009] Preferably, any of the above solutions is that a second spring is installed on the two side plates.

[0010] Preferably, any of the above schemes is that a first fixing plate is installed in the housing, the first fixing plate is connected to one of the second springs, a first sliding rod is installed on the first fixing plate, and the first sliding rod is slidably disposed in one of the positioning holes.

[0011] Preferably, any of the above schemes is that a second fixing plate is installed in the housing, the second fixing plate is connected to another second spring, a second sliding rod is installed on the second fixing plate, and the second sliding rod is slidably disposed in another positioning hole.

[0012] Preferably, any of the above schemes is that a support plate is fixedly provided on the mounting ring, the support plate is installed in the outer shell, and a slot is provided in the mounting ring; a hemispherical groove is provided on the connecting rod; one end of the first spring is installed in the slot, and the other end of the first spring is connected to a locking ball, and the locking ball is slidably set in the slot, and the locking ball is set in the hemispherical groove.

[0013] Compared with the prior art, the advantages and beneficial effects of this application are:

[0014] It is equipped with a self-locking mechanism to ensure that the switch can be effectively prevented from being operated incorrectly when needed. It can also maintain the current state even by accidental touch or external force, greatly improving the safety during the use of power tools. Users only need simple operations to complete the switching between self-locking and anti-self-locking states without complicated steps, thereby improving work efficiency and user experience.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a schematic diagram of a first viewing angle according to an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of a second viewing angle according to an embodiment of the present application;

[0019] Figure 3 It is a partial schematic diagram according to an embodiment of the present application;

[0020] Figure 4 This is a schematic diagram of the switch button connection according to an embodiment of the present application;

[0021] Figure 5 This is a schematic diagram of a positioning plate from a first viewing angle according to an embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of a positioning plate from a second viewing angle according to an embodiment of the present application;

[0023] Figure 7 A schematic diagram of a self-locking mechanism according to an embodiment of the present application;

[0024] Figure 8 It is a schematic cross-sectional diagram of an installation ring according to an embodiment of the present application.

[0025] In the figure: 1, housing, 2, switch button, 3, self-locking mechanism, 301, connecting rod, 302, mounting ring, 303, locking ball, 304, first spring, 305, bump, 306, operating rod, 307, support plate, 4, positioning plate, 401, first baffle plate, 402, second baffle plate, 5, side plate, 6, second spring, 7, first fixed plate, 8, first slide bar, 9, second fixed plate, 10, second slide bar. DETAILED DESCRIPTION

[0026] like Figures 1 to 8 As shown, the self-locking structure of the electric tool switch includes a housing 1, a switch button 2 and a self-locking mechanism 3.

[0027] Further, the switch button 2 is built into the housing 1, a positioning plate 4 is installed inside the switch button 2, a slide groove is provided on both outer walls of the switch button 2, a through hole is provided on the switch button 2 for matching with the connecting rod 301; side plates 5 are installed at both ends of the switch button 2, positioning holes are provided on both side plates 5, and second springs 6 are installed on both side plates 5;

[0028] like Figures 5 and 6 As shown, a connecting hole is provided on the positioning plate 4 for matching the connecting rod 301, and a groove is provided in the connecting hole for matching the protrusion 305; two first baffles 401 are installed at one end of the positioning plate 4, and two second baffles 402 are installed at the other end of the positioning plate 4.

[0029] The two first baffles 401 and the two second baffles 402 block the movement of the protrusion 305, thereby positioning the rotation of the connecting rod 301 so that the protrusion 305 corresponds to the groove or deviates from the groove.

[0030] Furthermore, a first fixing plate 7 is installed in the outer shell 1, and the first fixing plate 7 is connected to one of the second springs 6. A first sliding rod 8 is installed on the first fixing plate 7, and the first sliding rod 8 is slidably set in one of the positioning holes. A second fixing plate 9 is installed in the outer shell 1, and the second fixing plate 9 is connected to another second spring 6. A second sliding rod 10 is installed on the second fixing plate 9, and the second sliding rod 10 is slidably set in another positioning hole.

[0031] The first slide bar 8 and the second slide bar 10 cooperate with the positioning holes on the two side plates 5 to limit the movement trajectory of the switch button 2 to prevent the switch button 2 from being offset.

[0032] Further, such as Figures 7 and 8 As shown, the self-locking mechanism 3 includes a connecting rod 301, a mounting ring 302, a locking ball 303 and a first spring 304, wherein a protrusion 305 is fixedly provided on the connecting rod 301, an operating rod 306 is installed at one end of the connecting rod 301, a support plate 307 is fixedly provided on the mounting ring 302, and the support plate 307 is installed in the housing 1, a slot is provided in the mounting ring 302, a hemispherical groove is provided on the connecting rod 301, one end of the first spring 304 is installed in the slot, and the other end of the first spring 304 is connected to the locking ball 303, the locking ball 303 is slidably set in the slot, and the locking ball 303 is set in the hemispherical groove.

[0033] Specifically, there are four slots, which are distributed in a circular array in the mounting ring 302, and there are four first springs 304 and four locking balls 303, which are installed in the four slots;

[0034] The number of the hemispherical grooves is four, which are distributed on the connecting rod 301 in a circular array.

[0035] The self-locking structure of the electric tool switch works as follows:

[0036] Initially, it is in the anti-self-locking state, that is, the protrusion 305 is on the positioning plate 4, and the positions of the protrusion 305 and the groove do not correspond;

[0037] At this time, when you need to use power tools:

[0038] The operating rod 306 is rotated to drive the connecting rod 301 to rotate, and the protrusion 305 on it is driven to move, so that the protrusion 305 contacts the other baffle. At this time, the protrusion 305 corresponds to the position of the groove. When the connecting rod 301 rotates, the locking ball 303 is simultaneously subjected to force, moves toward the inside of the slot and squeezes the first spring 304, until the connecting rod 301 stops rotating, the slot corresponds to the position of the hemispherical slot again, and the locking ball 303 is pushed under the force of the first spring 304, and the locking ball 303 is pushed into the hemispherical slot to lock the connecting rod 301;

[0039] At this time, the switch button 2 can be pressed. When the switch button 2 is pressed, the support plate 307 slides in the slide groove. After pressing the switch button 2, the operating rod 306 is reversed, and the above movement is repeated in the opposite direction. Then, the protrusion 305 is under the positioning plate 4, and the switch button 2 is self-locked.

[0040] After use, rotate the operating rod 306 to make the position of the protrusion 305 correspond to the groove again, push the side plate 5 under the action of the second spring 6, and then drive the switch button 2 to reset, and the protrusion 305 returns to the top of the positioning plate 4, and rotate the operating rod 306 again to perform anti-self-locking.

Claims

1. The self-locking structure of the electric tool switch is characterized by: include: shell; The switch button is built into the housing, and a positioning plate is installed inside the housing; The self-locking mechanism comprises a connecting rod, a mounting ring, a locking ball and a first spring, wherein a protrusion is fixedly provided on the connecting rod, and an operating rod is installed at one end of the connecting rod for self-locking and anti-self-locking of the switch button; The operating rod is driven to rotate, the protrusion deflects and blocks the positioning plate, and the switch button cannot be pressed; The operating rod is driven to reset, the protrusion no longer blocks the positioning plate, and the switch button can be pressed; Pressing the switch button drives the operating rod, the convex block deflects and blocks the positioning plate, and the switch button cannot be reset; The operating rod is driven again to reset, and the protrusion no longer blocks the positioning plate, so that the switch button can be reset.

2. The self-locking structure of the electric tool switch according to claim 1, characterized in that: The positioning plate is provided with a connecting hole for matching with the connecting rod, and the connecting hole is provided with a groove for matching with the protrusion; Two first baffles are installed at one end of the positioning plate, and two second baffles are installed at the other end of the positioning plate.

3. The self-locking structure of the electric tool switch according to claim 1, characterized in that: Slide grooves are provided on both outer walls of the switch button, and a through hole is provided on the switch button for matching with the connecting rod; Side panels are installed at both ends of the switch button, and positioning holes are opened on the two side panels.

4. The self-locking structure of the electric tool switch according to claim 3, characterized in that: The two side plates are provided with second springs.

5. The self-locking structure of the electric tool switch according to claim 4, characterized in that: A first fixing plate is installed in the shell, the first fixing plate is connected to one of the second springs, a first sliding rod is installed on the first fixing plate, and the first sliding rod is slidably disposed in one of the positioning holes.

6. The self-locking structure of the electric tool switch according to claim 5, characterized in that: A second fixing plate is installed in the shell, the second fixing plate is connected to another second spring, a second sliding rod is installed on the second fixing plate, and the second sliding rod is slidably arranged in another positioning hole.

7. The self-locking structure of the electric tool switch according to claim 1, characterized in that: A support plate is fixedly provided on the mounting ring, and the support plate is installed in the housing. A slot is provided in the mounting ring; The connecting rod is provided with a hemispherical groove; One end of the first spring is installed in the slot hole, and the other end of the first spring is connected to the locking ball. The locking ball is slidably arranged in the slot hole, and the locking ball is arranged in the hemispherical groove.

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