Switching device and electric tool

Abstract

The utility model belongs to the technical field of electric appliance switches, and particularly relates to a switching device and an electric tool. The switch device comprises a shell, a switch body, a trigger and a gear assembly, an inner cavity is formed in the shell, part of the switch body is arranged in the inner cavity, part of the trigger penetrates through the shell to be connected with the switch body, so that the switch body can be switched between an open state and a closed state, and a first limiting part is arranged on the trigger; part of the gear assembly is slidably connected with the shell, the gear assembly comprises a second limiting part, the switch body is switched between an open state and a closed state under the condition that the first limiting part does not abut against the second limiting part, and the switch body is in the open state under the condition that the second limiting part abuts against the first face. And when the second limiting part abuts against the second surface, the switch body is in a closed state. Due to the three-gear function, the electric tool can adapt to more kinds of working requirements, so that the application range and the flexibility of the electric tool are increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrical switches, in particular to a switch device and an electric tool. Background Art

[0002] In the design and use of power tools, the switch lock button mechanism is a key component used to control the start, stop and running status of the tool. In the prior art, the switch lock button of the power tool is usually designed as a simple mechanical structure to achieve basic switch functions. These switches may include push-pull, rotary or press-type mechanisms for user operation. However, with the complexity of the use environment of power tools and the diversification of user needs, the traditional switch lock button mechanism faces the problems of single function and low space utilization. For example, some work scenarios may require the power tool to automatically lock after starting to continue working, or require special functions such as rapid reverse rotation. These requirements are beyond the design scope of the traditional switch lock button mechanism. Therefore, the power tool switch lock button mechanism in the prior art cannot meet these growing demands, and it is necessary to develop a more efficient, multifunctional and space-saving new mechanism to improve the performance and user experience of power tools. Utility Model Content

[0003] The purpose of the utility model is to at least solve the problem of single functionality of the switch device. This purpose is achieved through the following technical solutions:

[0004] The first aspect of the utility model provides a switch device, comprising:

[0005] A shell, wherein an inner cavity is provided in the shell;

[0006] A switch body, wherein the switch body is disposed in the inner cavity;

[0007] A trigger, part of which passes through the housing and is connected to the switch body, is used to drive the switch body to switch between an open state and a closed state, and a first limit portion is provided on the trigger, the first limit portion includes a first surface and a second surface, and the trigger has a preset action direction

[0008] A shift assembly, part of which is slidably connected to the housing, and the shift assembly includes a second limit portion capable of abutting against the first limit portion;

[0009] Among them, along the first direction, when the first limiting portion avoids the second limiting portion, the switch body switches between an open state and a closed state; along the first direction, when the first limiting portion and the second limiting portion are relatively arranged, when the second limiting portion abuts against the first surface, the switch body is in an open state, and when the second limiting portion abuts against the second surface, the switch body is in a closed state, and the first direction is consistent with the preset action direction.

[0010] According to the switch device of the utility model, the interactive design of the second limit part of the gear assembly and the first limit part of the trigger allows the switch device to have three gears, namely the normal gear, the self-locking gear and the anti-self-locking gear, so that the power tool can switch between the normal wrench control switch, the always-on state and the fool-proof closed state. This three-gear function enables the power tool to adapt to a wider variety of work needs, thereby increasing the application range and flexibility of the power tool.

[0011] In addition, the switch device according to the utility model may also have the following additional technical features:

[0012] In some embodiments of the utility model, the shift assembly includes a positioning plate and a locking button, the positioning plate is connected to the shell, and the positioning plate is provided with at least a first through hole and a second through hole in sequence, the locking button is slidably connected to the shell, and the locking button is provided with a self-locking cap and the second limiting portion, and the self-locking cap can be respectively accommodated in the first through hole or the second through hole.

[0013] In some embodiments of the present invention, a first spring is provided between the self-locking cap and the locking button, and the first spring can drive the locking button to be inserted into the first through hole or the second through hole, respectively.

[0014] In some embodiments of the present utility model, the shift assembly further includes a slider, the slider is fixed on the housing, a slide rail is provided in the lock button, and the slider is slidably connected to the slide rail.

[0015] In some embodiments of the present invention, a second spring is disposed in the slider body and arranged along the sliding direction of the slider, and a portion of the second spring is connected to the lock button.

[0016] In some embodiments of the present invention, the trigger is connected to the switch body via a manipulation arm.

[0017] In some embodiments of the present invention, the first limiting portion has a protrusion structure, the second limiting portion has a groove structure, the protrusion and the outer wall of the groove abut against each other, the switch body is in a closed state, the protrusion structure is received in the groove structure, and the switch body is in an open state.

[0018] In some embodiments of the present invention, the shift assembly is disposed closer to the switch body than the trigger.

[0019] In some embodiments of the present invention, a surface of the trigger facing away from the switch body is an arc-shaped surface.

[0020] A second aspect of the utility model provides an electric tool, comprising the above-mentioned switch device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0022] Figure 1 The structure diagram of the switch device according to the embodiment of the utility model is schematically shown;

[0023] Figure 2 The exploded structure diagram of the switch device according to the embodiment of the utility model is schematically shown;

[0024] Figure 3 Schematically shows a front view of a switch device according to an embodiment of the utility model;

[0025] Figure 4 The structure diagram of the hidden housing of the switch device according to the embodiment of the utility model is schematically shown;

[0026] Figure 5 Schematically shows a front view of a hidden housing of a switch device according to an embodiment of the utility model;

[0027] Figure 6 Schematically shows a left view of a hidden housing of a switch device according to an embodiment of the utility model when the switch body is in a closed state;

[0028] Figure 7 for Figure 6 Sectional view of the AA plane;

[0029] Figure 8Schematically shows a left side view of a switch device hidden housing when the switch body according to an embodiment of the utility model is in an open state;

[0030] Fig. 9 The left side view of the hidden housing of the switch device when the switch body according to the embodiment of the utility model is switched between the open state and the closed state is schematically shown.

[0031] The reference numerals are as follows:

[0032] 100. Switchgear;

[0033] 10. housing; 20. switch body;

[0034] 30. trigger; 31. first limiting portion; 311. first surface; 312. second surface;

[0035] 40, shift assembly; 41, lock button; 411, self-locking cap; 4111, first spring; 412, second limiter; 42, positioning plate; 43, slider; 431, second spring;

[0036] 50. Manipulator arm. DETAILED DESCRIPTION

[0037] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0038] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0040] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0041] like Figures 1 to 7 As shown, according to an embodiment of the present utility model, a switch device 100 is proposed, wherein the switch device 100 includes a housing 10, a switch body 20, a trigger 30 and a shift assembly 40, an inner cavity is provided in the housing 10, a part of the switch body 20 is provided in the inner cavity, a part of the trigger 30 passes through the housing 10 and is connected to the switch body 20, and is used to drive the switch body 20 to switch between an open state and a closed state, and a first limiting portion 31 is provided on the trigger 30, the first limiting portion 31 includes a first surface 311 and a second surface 312, the trigger 30 has a preset action direction, a part of the shift assembly 40 is slidably connected to the housing 10, and the shift assembly 40 includes a first surface 311 and a second surface 312, the trigger 30 has a preset action direction, and ... A second limiting portion 412 abuts against a limiting portion 31, wherein in a first direction (the first direction is consistent with a preset action direction), when the first limiting portion 31 avoids the second limiting portion 412, the shift assembly 40 is in the first gear, and the switch body 20 switches between an open state and a closed state. In the first direction, when the first limiting portion and the second limiting portion are relatively arranged, when the second limiting portion 412 abuts against the first surface 311, the shift assembly 40 is in the second gear, and the switch body 20 is in the open state; when the second limiting portion 412 abuts against the second surface 312, the shift assembly 40 is in the third gear, and the switch body 20 is in the closed state.

[0042] According to the switch device 100 of the utility model, the interactive design of the second limit portion 412 of the gear assembly 40 and the first limit portion 31 of the trigger 30 allows the switch device 100 to have three gears, namely the normal gear, the self-locking gear and the anti-self-locking gear, so that the power tool can be switched between the normal wrench control switch, the always open state and the foolproof closed state. This three-gear function enables the power tool to adapt to more types of work needs, thereby increasing the application range and flexibility of the power tool. At the same time, the matching setting of the first limit portion 31 and the second limit portion 412 ensures that the switch device 100 can be stably switched between various gears and locked in a specific gear, reducing the possibility of misoperation and enhancing the safety of the tool during use. Secondly, through the connection design of the trigger 30 and the switch body 20, the user can switch the state of the switch body 20 by simply operating the trigger 30. This design not only makes the operation more intuitive, but also improves the convenience of use. In addition, through the sophisticated internal structural design (such as the sliding connection between the shift assembly 40 and the housing 10), the switch device 100 effectively utilizes limited space to achieve complex functions, which is particularly important for power tools that require a compact design. Through its innovative structural design, the switch device 100 not only improves the operating performance and user experience of the power tool, but also has the potential advantages of improving safety, reliability and economy. This design meets the growing market demand for the performance and function requirements of power tools in complex use environments.

[0043] In some embodiments, the shift assembly 40 includes a positioning plate 42 and a lock button 41. The positioning plate 42 is fixedly connected to the housing 10. The positioning plate 42 is provided with at least two through holes, namely, a first through hole and a second through hole. The lock button 41 is slidably connected to the housing 10. The lock button 41 is provided with a self-locking cap 411 and a second limiting portion 412. The self-locking cap 411 can be received in the first through hole and the second through hole, respectively. Figure 6 As shown, the first through hole and the second through hole are arranged uniformly in sequence along the extension direction of the long axis of the positioning plate 42, and the lock button 41 can slide along the extension direction of the long axis of the positioning plate 42. The self-locking cap 411 can be engaged with either the first through hole or the second through hole, so as to achieve stable positioning of the lock button 41 at different positions. The outer shape of the self-locking cap 411 matches the inner shape of the first through hole and the second through hole, ensuring that it can achieve accurate and stable locking when passing through the through holes.

[0044] It can be understood that the locking button 41 is slidably connected to the shell 10 in that an opening is provided on one side of the shell 10 and the locking button 41 passes through the opening. The user presses or pulls the locking button 41 so that the locking button 41 can slide in the shell 10.

[0045] Specifically, the end of the self-locking cap 411 received in the first through hole or the second through hole is in a hemispherical shape, and the hemispherical self-locking cap 411 can enter and exit the through hole more smoothly, reducing the resistance during insertion and extraction, thereby improving the smoothness of operation and the accuracy of positioning. The cooperation between the hemispherical self-locking cap 411 and the through hole not only increases the contact area of ​​the lock, but also utilizes the shape matching principle to enhance the reliability of the self-locking function, and can maintain stable locking even in the case of vibration or impact.

[0046] It is understandable that a first spring 4111 is provided between the self-locking cap 411 and the lock button 41, and the first spring 4111 can drive the lock button 41 to be inserted into the first through hole or the second through hole, respectively. Specifically, a first spring 4111 is provided between the self-locking cap 411 and the lock button 41, and the first spring 4111 is a compression spring, one end of which is fixed inside the lock button 41, and the other end is in contact with the bottom of the self-locking cap 411. The elastic force of the first spring 4111 enables the self-locking cap 411 to be automatically received in the first through hole or the second through hole when no external force is applied, and when an external force acts on the self-locking cap 411 to push it out of the through hole, the first spring 4111 is compressed, thereby providing a reset force, so that the self-locking cap 411 automatically returns and repositions in the corresponding through hole after the external force is removed. By providing the first spring 4111, the self-locking cap 411 can move flexibly under the action of an external force, and automatically return and lock after the external force is removed, thereby improving the flexibility and efficiency of the operation of the switch device 100. At the same time, the reset force provided by the first spring 4111 ensures that the self-locking cap 411 can accurately return and reposition in the first through hole or the second through hole. Such a mechanism not only enhances the stability of the self-locking function, but also reduces the risk of locking failure due to improper operation.

[0047] In some embodiments, the shift assembly 40 further includes a slider 43, which is fixedly connected to the housing 10, a slide rail is provided in the lock button 41, and the slider 43 is slidably connected to the slide rail. The lock button 41 is provided with a slide rail, which cooperates with the guide structure of the slider 43, and the slider 43 is slidably connected to the slide rail, allowing the lock button 41 to move precisely controlled according to the force and direction of the user's operation of the lock button 41.

[0048] In some embodiments, the slider 43 is fixed on the housing 10, and the lock button 41 is slidably connected to the housing 10. A second spring 431 is provided in the body of the slider 43 and is arranged along the sliding direction of the slider 43. One end of the second spring 431 is fixed to the slider 43, and the other end is connected to the lock button 41 to provide a predetermined elastic force to cause the lock button 41 to reset to its initial position or preset position. The movement of the lock button 41 is achieved by providing a slide rail that matches the slider 43 inside the slider 43. The slide rail allows the lock button 41 to slide along a predetermined path relative to the fixed slider 43, thereby realizing the switching of different gears of the switch device 100. In this embodiment, by providing the second spring 431 to connect the slider 43 and the lock button 41, it can be ensured that the lock button 41 can accurately and reliably return to its initial position or preset position after operation, thereby enhancing the stability and reliability of the switch device 100. The predetermined elastic force provided by the second spring 431 not only promotes the resetting of the lock button 41, but also can adjust the operating force according to the strength of the spring, thereby optimizing the user's operating experience and making the switch operation smoother.

[0049] In some embodiments, the trigger 30 is connected to the switch body 20 via a manipulation arm 50, and the manipulation arm 50 has the characteristic of adjustable length, allowing the user to adjust the relative position and operation force between the trigger 30 and the switch body 20 according to actual needs. By accurately adjusting the distance between the trigger 30 and the switch body 20, the accuracy and reliability of the operation can be ensured, and accidental switch action caused by improper operation can be avoided.

[0050] In some embodiments, the first limiting portion 31 has a protruding structure, and the second limiting portion 412 is designed with a groove structure matching the protruding structure. When the switch body 20 is in a closed state, the outer walls of the protruding structure and the groove structure are in contact with each other, and when the switch body 20 is in an open state, the protruding structure is received in the groove structure. The protruding structure and the groove structure are made of wear-resistant and high-strength materials to reduce wear during long-term use. In addition, a fine-tuning mechanism is added between the protrusion and the groove, allowing the user to fine-tune the contact pressure according to the use situation, thereby ensuring smooth and accurate switch operation. The precise matching of the protrusion and the groove not only ensures the accuracy of the switch action, but also provides better tactile feedback, so that the user can obtain clear switch status feedback during operation, enhancing the user experience. In addition, the matching design of the protrusion and the groove structure, as well as the adjustable contact pressure, work together to ensure the stability and accuracy of the switch operation, avoid accidental switching due to improper operation or wear of the switch components, and increase the safety of the device.

[0051] In some embodiments, the shift assembly 40 is closer to the switch body 20 than the trigger 30. This layout optimization involves finely adjusting the installation position of the shift assembly 40 to ensure that it is within the direct influence range of the operating path of the trigger 30, while ensuring that the mechanical connection between the shift assembly 40 and the switch body 20 is tighter, reducing the operating error caused by the bending or elastic deformation of the operating rod or the connecting component.

[0052] In some embodiments, the trigger 30 is designed to be curved on one side facing away from the switch body 20. This design improvement means that the shape of the trigger 30 is optimized to be more ergonomic, and provides a more comfortable and natural grip and operation experience by matching the natural curvature of the user's fingers.

[0053] In a specific embodiment, Figure 1 and Figure 4 As shown, the housing 10 is provided with three openings. The opening arranged along the z-axis is used for the trigger 30 to pass through. The two openings arranged along the y-axis are symmetrically arranged on both sides of the opening arranged along the z-axis. The two ends of the lock button 41 pass through the two openings arranged along the y-axis and extend out of the housing 10. The positioning plate 42 is provided with three through holes along the y-axis, namely, the first through hole, the second through hole and the third through hole. Fig. 9 As shown, when the lock button 41 is pushed and the self-locking cap 411 is received in the first through hole or the third through hole, the first limit portion 31 and the second limit portion 412 do not contact each other, the trigger 30 can move up and down along the z-axis, and the switch body 20 can switch between the open state and the closed state. Figure 6 As shown, when the self-locking cap 411 is received in the second through hole, the second limiting portion 412 abuts against the second surface 312 at the bottom of the first limiting portion 31, the trigger 30 cannot move upward, the switch device 100 is in a self-locking state, and the switch body 20 is in a closed state. Figure 8 As shown, when the self-locking cap 411 is received in the first through hole or the third through hole, the trigger 30 is pulled, and after the trigger 30 moves upward along the z-axis, the switch body 20 is in an open state. At this time, the operating lock button 41 slides, causing the self-locking cap 411 to disengage from the first through hole or the third through hole and enter into the second through hole. At this time, the second limiting portion 412 and the first surface 311 at the top of the first limiting portion 31 are abutted against each other, and the trigger 30 cannot move downward. The switch device 100 is in an anti-self-locking state, and the switch body 20 is in an open state.

[0054] This embodiment further provides an electric tool, comprising the switch device 100 described above.

[0055] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A switch device, characterized in that: include: A shell, wherein an inner cavity is provided in the shell; A switch body, wherein the switch body is disposed in the inner cavity; A trigger, part of which passes through the housing and is connected to the switch body, is used to drive the switch body to switch between an open state and a closed state, and a first limit portion is provided on the trigger, the first limit portion includes a first surface and a second surface, and the trigger has a preset action direction A shift assembly, part of which is slidably connected to the housing, and the shift assembly includes a second limit portion capable of abutting against the first limit portion; Among them, along the first direction, when the first limiting portion avoids the second limiting portion, the switch body switches between an open state and a closed state; along the first direction, when the first limiting portion and the second limiting portion are relatively arranged, when the second limiting portion abuts against the first surface, the switch body is in an open state, and when the second limiting portion abuts against the second surface, the switch body is in a closed state, and the first direction is consistent with the preset action direction.

2. The switch device according to claim 1, characterized in that: The shift assembly includes a positioning plate and a locking button, the positioning plate is connected to the shell, and the positioning plate is provided with at least a first through hole and a second through hole in sequence, the locking button is slidably connected to the shell, and the locking button is provided with a self-locking cap and the second limiting portion, and the self-locking cap can be respectively accommodated in the first through hole or the second through hole.

3. The switch device according to claim 2, characterized in that: A first spring is arranged between the self-locking cap and the locking button, and the first spring can drive the locking button to be inserted into the first through hole or the second through hole respectively.

4. The switch device according to claim 2, characterized in that: The shift assembly further comprises a slider, which is fixed on the housing. A slide rail is arranged in the lock button, and the slider is slidably connected to the slide rail.

5. The switch device according to claim 4, characterized in that: A second spring is arranged in the sliding direction of the slider body, and part of the second spring is connected to the lock button.

6. The switch device according to claim 1, characterized in that: The trigger is connected to the switch body through a manipulation arm.

7. The switch device according to claim 1, characterized in that: The first limiting portion has a protrusion structure, and the second limiting portion has a groove structure. The protrusion and the outer wall of the groove are in contact with each other. The switch body is in a closed state, the protrusion structure is received in the groove structure, and the switch body is in an open state.

8. The switch device according to claim 1, characterized in that: The shift assembly is arranged closer to the switch body than the trigger.

9. The switch device according to claim 1, characterized in that: A surface of the trigger facing away from the switch body is an arc-shaped surface.

10. An electric tool, characterized in that: Comprising a switch device according to any one of claims 1 to 9.

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