Change-over switch and electric tool

Abstract

The utility model relates to the technical field of control switches, and provides a change-over switch and an electric tool, and the change-over switch comprises a switch body, a first operation part, a triggering part, an induction part and a regulator. The first operating piece is movably connected to the switch body; the triggering piece is arranged in the first operating piece and can synchronously move along with the first operating piece; the sensing piece can be triggered and sensed by the triggering piece and generates a corresponding state signal; the regulator is arranged outside the switch body, is electrically connected with the induction piece, and is used for regulating equipment electrically connected with the regulator according to the state signal; the sensing piece can generate a first state signal and a second state signal; under the first state signal, the regulator outputs a forward rotation instruction of the motor; and under the second state signal, the regulator outputs an instruction of motor reverse rotation and maximum torque. Both of the two can solve the problem that the gear of the electric tool is still kept in the previous state after forward and reverse rotation switching.

Description

Technical Field

[0001] This disclosure relates to the field of control switch technology, and more particularly to a switching switch and a power tool. Background Technology

[0002] Common power tools (such as impact wrenches) generally have a gear adjustment switch for adjusting the output torque and a toggle button for adjusting forward and reverse rotation. However, the same gear is used for both forward and reverse rotation of the power tool. When the toggle button needs to be switched to forward or reverse rotation, the gear adjustment switch is still in the gear position before the forward / reverse rotation switch. However, when users are tightening or loosening nuts, they usually use a lower gear to pre-tighten the nuts in the forward direction, and then use a torque wrench to determine the torque before manually tightening them. When loosening nuts, due to corrosion, oxidation, etc., the nuts are often stuck together and cold-welded, making them difficult to loosen. It is often necessary to use the highest gear to loosen the nuts.

[0003] Therefore, users often need to switch gears frequently when tightening and loosening nuts, and they may also forget the gear they used before, resulting in insufficient or excessive torque and affecting the user experience.

[0004] In view of this, there is an urgent need in the market for a switch to solve the problem that in existing technology, the gear position of power tools remains in the previous state after switching between forward and reverse. Utility Model Content

[0005] This disclosure provides a switching switch and a power tool to solve the problem in the prior art where the gear position remains in the previous state after switching between forward and reverse rotation.

[0006] The switching switch provided in this embodiment includes a switch body, a first operating element, a trigger element, a sensing element, and a regulator;

[0007] The first operating element is movably connected to the switch body;

[0008] The trigger element is disposed in the first operating element and can move synchronously with the first operating element;

[0009] The sensing element can be triggered by the triggering element to generate a corresponding status signal;

[0010] The controller is disposed outside the switch body and electrically connected to the sensing element, and is used to regulate the device electrically connected to it according to the status signal;

[0011] When the first operating member is operated, it can reciprocate relative to the switch body and drive the trigger member to be in a first position and a second position relative to the sensing member, so that the sensing member generates a first state signal and a second state signal.

[0012] Under the first state signal, the controller outputs a control command for the motor to rotate in the forward direction;

[0013] Under the second state signal, the controller outputs a control command to reverse the motor and maximize torque.

[0014] In one possible implementation, the trigger is a magnetic element and the sensing element is a magnetic sensing element;

[0015] In the first position, the trigger and the sensor are positioned directly opposite each other.

[0016] In the second position, the trigger and the sensor are not directly opposite each other.

[0017] In one possible implementation, the switch further includes a second operating element;

[0018] The second operating element is movably connected to the switch body;

[0019] When the second operating element is operated, it can move toward the switch body and keep the switching switch in a continuously conducting state;

[0020] When the second operating element is not operated, it can move away from the switch body to reset and keep the switching switch in a continuously open state.

[0021] In one embodiment, the switch body further includes a rotating member and a telescopic member;

[0022] When the first operating member reciprocates, it can correspondingly drive the rotating member to rotate around its own rotation axis.

[0023] When the second operating member reciprocates, it can correspondingly drive the telescopic member to insert into or extend from the switch body.

[0024] In one possible embodiment, the rotating component includes: a rotating swing arm, a protruding head, and a locking head;

[0025] One end of the rotating arm is hinged to the switch body;

[0026] The protruding head is perpendicularly connected to the other end of the rotating swing arm;

[0027] The stop head is perpendicularly connected to the other end of the rotating swing arm and extends in the opposite direction to the protruding head;

[0028] The first operating member has a clamping part for clamping the protruding head;

[0029] When the first operating member reciprocates, the clamping part can move the protruding head so that the rotating swing arm rotates about its own hinge end;

[0030] When the rotating arm rotates to be directly opposite the second operating member, the locking head can correspondingly lock and limit the second operating member.

[0031] In addition, this disclosure also provides a power tool, which includes a tool body and the aforementioned switch;

[0032] The regulator of the switching switch is electrically connected to the tool body and is used to adjust the output state of the tool body according to the state signal of the sensor.

[0033] In one possible implementation, the first operating element is a sliding toggle switch;

[0034] The tool body is provided with a corresponding groove for the sliding knob to slide back and forth;

[0035] The sliding knob can slide along the slide groove when turned, so as to move the trigger relative to the sensing element to a first position and a second position.

[0036] In one embodiment, the slide and the first operating member have a self-locking frictional resistance.

[0037] In one possible embodiment, the power tool further includes an adjustment device;

[0038] The adjustment device is located in the tool body and is used to manually switch and adjust the output torque of the tool body.

[0039] In one possible implementation, the tool body further includes a handle;

[0040] One end of the handle is connected to the tool body, and the other end forms a support base;

[0041] The adjustment device is located at the top of the support base.

[0042] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0043] The switching switch provided in this embodiment has the advantages of a trigger element in the first operating member and a sensor element in the switch body. When the first operating member is moved, the relative positions of the trigger element and the sensor element can be changed synchronously. This allows the sensor element to generate different status signals according to the position of the first operating member. An additional controller is provided to receive the status signals of the sensor element and automatically switch the rotation direction of the motor and the output torque of the shaft in the impact wrench according to the different status signals. When the user switches the motor forward and reverse, the controller can automatically adjust the output torque of the motor according to the status signals of the sensor element. This avoids the problem of insufficient torque when the nut is loosened or excessive torque when the nut is tightened. This switching switch has the advantages of simple structure, small size, flexible arrangement, durability and high reliability.

[0044] In addition, this disclosure also provides a power tool, including a tool body and the aforementioned switch, which can achieve all the beneficial effects of the aforementioned switch, and will not be described in detail here.

[0045] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of this disclosure, nor is it intended to limit the scope of this disclosure. Other features of this disclosure will become readily apparent from the following description. Attached Figure Description

[0046] The above and other objects, features, and advantages of this disclosure will become readily apparent from the following detailed description of exemplary embodiments, taken in conjunction with the accompanying drawings. Several embodiments of this disclosure are illustrated in the drawings by way of example and not limitation, in which:

[0047] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

[0048] Figure 1 A schematic diagram of a switching switch provided in an embodiment of this disclosure is shown;

[0049] Figure 2 A partial structural diagram of the switching switch provided in an embodiment of this disclosure is shown;

[0050] Figure 3 This illustration shows another perspective view of the switch provided in an embodiment of the present disclosure;

[0051] Figure 4 A schematic diagram of a power tool provided in an embodiment of this disclosure is shown.

[0052] The labels in the diagram are as follows: 1. Switch body; 11. Rotating component; 111. Rotating swing arm; 112. Protruding head; 113. Stop head; 12. Telescopic component;

[0053] 2. First operating component; 21. Clamping part;

[0054] 3. Trigger; 5. Second operating element;

[0055] 6. Tool body; 61. Adjustment device; 62. Handle; 621. Support base. Detailed Implementation

[0056] To make the objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions in the embodiments of this disclosure 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 disclosure, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0057] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.

[0058] Combination Figure 1 and Figure 2 As shown, this embodiment of the present disclosure provides a switching switch, which includes a switch body 1, a first operating element 2, a trigger element 3, a sensor element, and a regulator; the first operating element 2 is movably connected to the switch body 1; the trigger element 3 is disposed in the first operating element 2 and can move synchronously with the first operating element 2; the sensor element can be triggered and sensed by the trigger element 3 and generate a corresponding status signal; the regulator element is disposed outside the switch body 1 and electrically connected to the sensor element, and is used to regulate the device electrically connected to it according to the status signal;

[0059] When the first operating element 2 is operated, it can reciprocate relative to the switch body 1, and drive the trigger element 3 to be in the first position and the second position relative to the sensing element, so that the sensing element generates a first state signal and a second state signal; under the first state signal, the controller outputs a motor forward rotation control command; under the second state signal, the controller outputs a motor reverse rotation control command with the maximum torque.

[0060] The switching switch provided in this embodiment can be applied to power tools such as impact wrenches and electric drills. The usage process will be described using an impact wrench as an example.

[0061] In practical use, when the impact wrench needs to output forward rotation to tighten the nut, simply move the first operating member 2 relative to the switch body 1 along the first direction to drive the trigger member 3 to the first position relative to the sensing member. This allows the trigger member 3 to trigger the sensing member and generate a corresponding first state signal. The controller can then adjust the output motor forward rotation control command based on the first state signal, and the specific output torque of the forward rotation motor can be flexibly set according to the actual usage scenario. When the impact wrench needs to output reverse rotation to loosen the nut, simply move the first operating member 2 relative to the switch body 1 along the opposite direction to the first direction to drive the trigger member 3 to the second position relative to the sensing member. At this time, the trigger member 3 no longer triggers the sensing member, and the sensing member generates a corresponding second state signal. The controller can then adjust the output motor reverse rotation and maximum torque control command based on the second state signal.

[0062] Thus, when users use the impact wrench to tighten or loosen nuts, they no longer need to frequently switch gears. As the user operates the first operating component 2 to move back and forth relative to the switch body 1 to switch the forward and reverse rotation of the motor in the impact wrench, the controller can automatically adjust the output torque of the motor according to the status signal of the sensing component, thereby avoiding the problem of insufficient torque when loosening nuts and excessive torque when tightening nuts.

[0063] In summary, the switching switch provided in this embodiment of the present disclosure, by setting a trigger element 3 in the first operating element 2 and a sensing element in the switch body 1, and by synchronously changing the relative position of the trigger element 3 and the sensing element when the first operating element 2 is moved, enables the sensing element to generate different state signals according to the position of the first operating element 2. In addition, a controller is set to receive the state signals of the sensing element and automatically switch the rotation direction of the motor and the output torque of the shaft in the impact wrench according to different state signals. It has the beneficial effects of simple structure, small size, flexible arrangement, durability and high reliability.

[0064] In one possible implementation, the trigger 3 is a magnetic element and the sensing element is a magnetic sensing element; wherein, in the first position, the trigger 3 and the sensing element are directly opposite each other; in the second position, the trigger 3 and the sensing element are not directly opposite each other.

[0065] Specifically, in combination Figure 2In further detail, the trigger 3 is set as a magnetic element, which can be specifically, but is not limited to, a permanent magnet; the sensing element is a magnetic sensing element, which can be specifically, but is not limited to, a Hall element. In this way, when the trigger 3 and the sensing element are positioned directly opposite each other, the permanent magnet can trigger the Hall element accordingly, causing the sensing element to generate a first state signal. Thus, the information that the first operating element 2 is in the first position can be obtained. When the permanent magnet and the Hall element are not positioned directly opposite each other, the permanent magnet will no longer trigger the Hall element accordingly, causing the sensing element to generate a second state signal. Thus, the information that the first operating element 2 is in the second position can be obtained.

[0066] The specific configuration of the aforementioned trigger element 3 and sensing element has the advantages of simple structure, high detection sensitivity, long service life, convenient installation, and low power consumption.

[0067] Of course, the trigger 3 and the sensing element mentioned above can also be set as other types of detection devices, such as infrared light source and infrared detector. When the two are set facing each other, they can also trigger the sensing element to generate a first state signal. When the two are no longer set facing each other, they will no longer trigger the sensing element to generate a second state signal.

[0068] In one embodiment, the switch further includes a second operating member 5; the second operating member 5 is movably connected to the switch body 1; when the second operating member 5 is operated, it can move toward the switch body 1 and keep the switch in a continuously conducting state; when the second operating member 5 is not operated, it can move away from the switch body 1 to reset and keep the switch in a continuously disconnected state.

[0069] Specifically, in combination Figure 3 In further detail, the second operating element 5 can be specifically, but not limited to, a trigger. This allows the user to rotate the second operating element 5 toward the switch body 1 or rotate it away from the switch body 1 by pressing or releasing the trigger. When the second operating element 5 is pressed, the switch is in a continuously conducting state; when the second operating element 5 is released, the switch is in a continuously disconnected state. This allows the user to flexibly control the operating state of the switch through the second operating element 5.

[0070] In one embodiment, the switch body 1 further includes a rotating member 11 and a telescopic member 12; when the first operating member 2 reciprocates, it can correspondingly drive the rotating member 11 to rotate around its own rotation axis; when the second operating member 5 reciprocates, it can correspondingly drive the telescopic member 12 to insert into or extend out of the switch body 1.

[0071] Specifically, in combination Figure 3In further detail, the switch body 1 is also provided with a rotating member 11 and a telescopic member 12, and the first operating member 2 is connected to the rotating member 11 in a transmission manner. When the first operating member 2 moves back and forth, it can drive the rotating member 11 to rotate around its own rotation axis. The second operating member 5 is connected to the telescopic member 12 in a transmission manner. When the second operating member 5 is pressed or released, it can simultaneously drive the telescopic member 12 to insert or extend into the switch body 1.

[0072] The specific arrangement of the rotating component 11 and the telescopic component 12 can respectively realize the installation and connection of the first operating component 2 and the second operating component 5.

[0073] In one embodiment, the rotating member 11 includes a rotating arm 111, a protruding head 112, and a locking head 113; one end of the rotating arm 111 is hinged to the switch body 1; the protruding head 112 is perpendicularly connected to the other end of the rotating arm 111; the locking head 113 is perpendicularly connected to the other end of the rotating arm 111 and extends in the opposite direction to the protruding head 112.

[0074] The first operating member 2 has a clamping part 21 for clamping the protrusion 112; when the first operating member 2 reciprocates, the clamping part 21 can move the protrusion 112 so that the rotating arm 111 rotates around its own hinge end; when the rotating arm 111 rotates to be directly opposite the second operating member 5, the stop head 113 can correspondingly stop and limit the second operating member 5.

[0075] Specifically, in combination Figure 3 In further detail, the rotating component 11 is specifically configured to include a rotating swing arm 111, a protruding head 112, and a locking head 113. One end of the rotating swing arm 111 is hinged to the switch body 1, the protruding head 112 is perpendicularly connected to the other end of the rotating swing arm 111, and the locking head 113 is perpendicularly connected to the other end of the rotating swing arm 111 and extends in the opposite direction to the protruding head 112. In this way, when the first operating component 2 reciprocates, the clamping part 21 can correspondingly move the protruding head 112 to make the rotating swing arm 111 rotate around its own hinge end.

[0076] Furthermore, when the movable swing arm 111 rotates to be directly opposite the second operating member 5, the locking head 113 can correspondingly lock and limit the second operating member 5, which can be used to lock the second operating member 5 and prevent the second operating member 5 from being accidentally triggered.

[0077] In addition, this disclosure also provides a power tool, which includes a tool body 6 and the aforementioned switching switch; wherein the regulator of the switching switch is electrically connected to the tool body 6 and is used to regulate the output state of the tool body 6 according to the state signal of the sensing element.

[0078] Specifically, in combination Figure 4In further detail, the power tool can be, but is not limited to, an impact wrench, and the controller in the switch body 1 can be electrically connected to the control center in the tool body 6. In this way, the controller can adjust the output state of the tool body 6 according to the status signal of the sensing element.

[0079] The electric motor includes the aforementioned switch and can achieve all the beneficial effects of the aforementioned switch, which will not be elaborated further here.

[0080] In one embodiment, the first operating element 2 is a sliding knob; the tool body 6 is provided with a corresponding groove for the sliding knob to slide back and forth; the sliding knob can slide along the groove when it is turned, so as to drive the trigger element 3 to be in the first position and the second position relative to the sensing element.

[0081] Specifically, in combination Figure 4 In further detail, a sliding groove is provided in the tool body 6 for the sliding knob to slide back and forth, and the first operating member 2 is set as a sliding knob that slides through the sliding groove. In this way, when the first operating member 2 is turned, it can slide back and forth along the sliding groove to drive the trigger member 3 to be in the first position and the second position relative to the sensing member.

[0082] The above-mentioned installation method of the first operating component 2 and the tool body 6 has the advantages of simple structure, specific positioning of the first operating component 2, and easy adjustment by the user.

[0083] In one embodiment, there is a self-locking frictional resistance between the slide and the first operating member 2; and the trigger member 3 is in a first position relative to the sensing member, and the installation damping between the first operating member 2 and the slide is at its maximum.

[0084] Specifically, a self-locking frictional resistance is provided between the slide and the first operating member 2. This way, no matter where the user moves the first operating member 2 in the slide, the first operating member 2 can be self-locked and fixed in the slide by the frictional resistance, avoiding the problem of the first operating member 2 sliding in the slide without being moved. Moreover, when the trigger member 3 is in the first position relative to the sensing member, the installation damping between the first operating member 2 and the slide is at its maximum. Thus, when the user moves the first operating member 2 in the slide and reaches the point of maximum resistance, it means that the trigger member 3 is in the first position relative to the sensing member. At this time, the trigger member 3 can trigger the sensing member and generate a corresponding first state signal. In this way, the controller can adjust the output motor forward rotation and torque initial setting control commands according to the first state signal.

[0085] In one embodiment, the power tool further includes an adjustment device 61; the adjustment device 61 is disposed in the tool body 6 and is used to manually switch and adjust the output torque of the tool body 6.

[0086] Specifically, in combination Figure 4In further detail, the power tool is also equipped with an adjustment device 61, and the user can manually switch the output torque of the tool body 6 by adjusting the device 61 to ensure that the output torque can be flexibly adjusted in real time during actual use of the power tool, so as to ensure that it can adapt to various working conditions.

[0087] In one embodiment, the tool body 6 further includes a handle 62; one end of the handle 62 is connected to the tool body 6, and the other end forms a support base 621; an adjustment device 61 is disposed on the top of the support base 621.

[0088] Specifically, in combination Figure 4 In further detail, a handle 62 is also provided in the tool body 6, with one end of the handle 62 connected to the tool body 6 and the other end forming a support base 621. In this way, the handle 62 can not only be used by the user to grip, but also the power tool can be temporarily placed on the support base 621 at the end of the handle 62. In addition, the adjustment device 61 is set in the top of the support base 621, which also makes it convenient for the user to press or turn the adjustment device 61 with the other hand when gripping normally, so as to flexibly adjust the actual output torque of the power tool.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0090] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A changeover switch, characterised in that, The switch further comprises: a switch body (1); a first operating member (2) movably connected to the switch body (1); a triggering member (3) arranged in the first operating member (2) and capable of moving synchronously with the first operating member (2); a sensing member capable of being triggered by the triggering member (3) and generating a corresponding state signal; a controller arranged outside the switch body (1) and electrically connected to the sensing member, for regulating a device electrically connected thereto according to the state signal; wherein the first operating member (2) is capable of reciprocating relative to the switch body (1) when operated, and drives the triggering member (3) to be in a first position and a second position relative to the sensing member, so that the sensing member generates a first state signal and a second state signal; under the first state signal, the controller outputs a regulating instruction of forward rotation of a motor; under the second state signal, the controller outputs a regulating instruction of reverse rotation of the motor with maximum torque.

2. The switch according to claim 1, characterized in that The triggering member (3) is a magnetic element, and the sensing member is a magnetic sensing element; wherein in the first position, the triggering member (3) is arranged opposite to the sensing member; in the second position, the triggering member (3) is arranged not opposite to the sensing member.

3. The switch according to claim 1, characterized in that The switch further comprises a second operating member (5); the second operating member (5) is movably connected to the switch body (1); the second operating member (5) is capable of moving towards the switch body (1) when operated, and makes the switch in a continuously on state; the second operating member (5) is capable of moving away from the switch body (1) when not operated, and makes the switch in a continuously off state.

4. The switch according to claim 3, characterized in that The switch body (1) further comprises a rotating member (11) and an extension member (12); when the first operating member (2) reciprocates, the rotating member (11) is correspondingly driven to rotate about its own axis; when the second operating member (5) reciprocates, the extension member (12) is correspondingly driven to be inserted into or extended out of the switch body (1).

5. The switch according to claim 4, characterized in that The rotating member (11) comprises: a rotating swing arm (111) hingedly connected to the switch body (1) at one end; a protruding head (112) perpendicularly connected to the other end of the rotating swing arm (111); a clamping head (113) perpendicularly connected to the other end of the rotating swing arm (111) and reversely extended from the protruding head (112); wherein the first operating member (2) has a clamping portion (21) for clamping the protruding head (112); when the first operating member (2) reciprocates, the clamping portion (21) can push the protruding head (112) to make the rotating swing arm (111) rotate about its hinged end; when the rotating swing arm (111) rotates to be opposite to the second operating member (5), the clamping head (113) can correspondingly clamp and limit the second operating member (5).

6. A power tool characterized by comprising: The switch further comprises a tool body (6) and the switch of any one of claims 1-5. The controller of the switch is electrically connected with the tool body (6) for regulating the output state of the tool body (6) according to the state signal of the inductor.

7. The power tool of claim 6, wherein, The first operating member (2) is a sliding knob. A sliding groove is formed in the tool body (6) for reciprocating sliding of the sliding knob. The sliding knob can slide along the sliding groove when being actuated to drive the trigger (3) to be in the first position and the second position relative to the inductor.

8. The power tool of claim 7, wherein, The sliding groove and the first operating member (2) have self-locking frictional resistance.

9. The power tool of claim 6, wherein, The electric tool further comprises an adjusting device (61). The adjusting device (61) is arranged in the tool body (6) for manually switching and adjusting the output torque of the tool body (6).

10. The power tool of claim 9, wherein, The tool body (6) further comprises a handle (62). One end of the handle (62) is connected with the tool body (6) and the other end forms a supporting base (621). The adjusting device (61) is arranged in the top of the supporting base (621).

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