A switch device with a reciprocating lever with power assistance

Abstract

This invention discloses a switch device with an assisted reciprocating lever, comprising a handle housing and a handle cover. A switch body is housed within the handle housing, and a switch trigger is positioned between the handle housing and the switch body. The switch trigger is hinged to the switch body and has a first protrusion. A locking assembly is provided on the handle housing, comprising a lever, a locking block, and an elastic element. The lever is mounted on the handle housing. When the side wall of the locking block is in contact with the inner wall of the handle housing, the locking assembly is in an unlocked state. When the locking block is in contact with the first protrusion, the locking assembly is in a locked state. One end of the elastic element is hinged to the handle housing, and the other end is hinged to the lever. When the locking assembly is in the locked or unlocked state, the elastic element is in an elastic deformation state. This invention provides a separate locking assembly for locking the switch trigger at a position separated from the switch body. The locking assembly has two states: locked and unlocked. Locking is reliable, and operation is simple and effortless.

Description

Technical Field

[0001] This invention belongs to the field of power tool switch technology, specifically relating to a switch device with an assisted reciprocating lever. Background Technology

[0002] A hammer drill is a common power tool. Existing hammer drills typically have a handle with a trigger and a switch body. Pulling the trigger puts the switch body in a conductive state, allowing the hammer to operate normally. Releasing the trigger disengages the switch body. During normal operation, the operator often prefers the switch body to remain in the conductive state, eliminating the need for continuous triggering and making operation easier. Current hammer drills often have a switch body on the handle with a locking mechanism. This locking mechanism holds the trigger against the switch body, ensuring the switch remains in the conductive state. However, existing locking mechanisms are usually integrated with the switch body. When pulling the trigger, only the operator's thumb is usually free. Since the switch body and locking mechanism are often located inside the handle, triggering the locking mechanism with the thumb is laborious and inconvenient, resulting in a poor user experience. Meanwhile, the locking component is located in the grip area of ​​the handle. When using the hammer drill, the operator may accidentally lock the locking component by applying force with their palm, preventing it from locking the trigger. The operator then needs to pull the trigger again and press the locking component again to keep the switch in the ON state. Therefore, the locking components on common handles have poor locking performance and low reliability. Thus, a switch device with an assisted reciprocating lever needs to be designed. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention designs a switch device with an assisted reciprocating lever. This invention features a locking component separately installed at a position between the handle housing and the switch body for locking the switch trigger. The locking component has two states: locked and unlocked. The locking is reliable and the operation is simple and effortless.

[0004] The objective of this invention is achieved through the following technical solution: a power tool switch with a locking function, comprising a handle housing and a handle cover, wherein a switch body is detachably connected to the handle housing, and a switch trigger is provided between the handle housing and the switch body. The switch trigger is hinged to the switch body and has a first protrusion. The handle housing is provided with a locking assembly for restricting the rotation of the switch trigger. The locking assembly includes a lever and a locking block disposed on the lever, and further includes an elastic element disposed between the handle housing and the lever. The lever is mounted on the handle housing and passes through two side walls of the handle housing. When the lever is pushed so that the side wall of the locking block is in contact with the inner wall of the handle housing, the locking assembly is in an unlocked state. When the lever is pushed so that the locking block is between the two inner walls of the handle housing and is in contact with the first protrusion, the locking assembly is in a locked state. One end of the elastic element is hinged to the handle housing, and the other end is hinged to the lever. When the locking assembly is in a locked or unlocked state, the elastic element is in an elastic deformation state.

[0005] Preferably, the handle housing has a mounting hole for mounting a lever, and the lever passes through the mounting hole; the locking block is fixedly connected to the lever by a fastener; the end face of the locking block facing the switch trigger has a second protrusion, the side of the second protrusion and the side of the locking block are in the same plane, the locking assembly is in a locked state when the first protrusion and the second protrusion are in a locked state when they are close together, and the locking assembly is in an unlocked state when the first protrusion and the second protrusion are offset from each other; the elastic element includes a helical part, and also includes a first torsion bar and a second torsion bar extending outward from the helical part, the first torsion bar is hinged to the handle housing, and the second torsion bar is hinged to the lever.

[0006] The locking component is in the unlocked state by default. When it is necessary to switch the locking component from the unlocked state to the locked state, push the lever to move the locking block on the lever from the side wall of the handle housing toward the switch trigger. When the second protrusion on the locking block is in contact with the first protrusion on the switch trigger, the end face of the locking block facing away from the second protrusion abuts against the inner wall of the handle housing. At this time, the switch trigger cannot rotate relative to the switch body due to the limitation of the locking block, and the locking component is in the locked state. When the locking assembly switches from the unlocked state to the locked state, the first torsion bar on the elastic element rotates relative to the handle housing, and the second torsion bar rotates relative to the first torsion bar about the first torsion bar as its rotation axis. During the movement of the locking block, the second torsion bar moves. During the switching process of the locking assembly, the second torsion bar first approaches the first torsion bar and then moves away from it. When the locking assembly is in the unlocked state, the second torsion bar is in its initial position; when the locking assembly is in the locked state, the second torsion bar is in its final position. The process of the second torsion bar switching from the initial position to the final position involves an intermediate critical position. When the second torsion bar is in the intermediate critical position, the elastic deformation of the spiral part is at its maximum. The second torsion bar cannot stably maintain this intermediate critical position and will automatically move to the final position with the locking block. Since the elastic deformation of the spiral part in the final position is less than that in the intermediate critical position, if the position of the second torsion bar needs to be changed, an external force is required to overcome the elastic force generated by the spiral part. Therefore, the second torsion bar can stably maintain its final position without external force, and thus the locking assembly can stably maintain its locked state.

[0007] When switching the locking assembly from the locked to the unlocked state, pushing the lever moves the second protrusion on the locking block away from the first protrusion on the switch trigger. When the side wall of the locking block abuts against the side wall of the handle housing, the locking assembly is in the unlocked state. At this time, the switch trigger can rotate relative to the switch body without being limited by the locking block. Similarly, the locking assembly can also be stably maintained in the unlocked state. When switching the locking assembly from the locked to the unlocked state, the second torsion bar moves from its final position to its initial position. During the position switching of the second torsion bar, it will pass through an intermediate critical position. Since the elastic deformation of the helical part is at its maximum at this time and there is no limitation on the left and right sides of the locking block, the locking block will drive the second torsion bar to continue moving. When the locking block abuts against the inner wall of the handle housing, the second torsion bar is in its initial position. The elastic force generated by the helical part makes the locking block stably abut against the inner wall of the handle housing, so the locking assembly can also be stably maintained in the unlocked state. It can be seen that the switching between the two states of the locking assembly is effortless and reliable, and the locking assembly can also be stably maintained in either the locked or unlocked state.

[0008] Preferably, the lever is provided with a limiting groove for mounting a locking block. The two inner walls of the limiting groove along the axial direction of the lever are respectively fitted with two parallel end faces on the locking block. The upper end face of the locking block is set higher than the upper end face of the lever. The lever is also provided with a guide notch for mounting a second torsion bar. The locking block is provided with a guide through hole for placing the second torsion bar. The second torsion bar passes through the guide notch and exits from the guide through hole.

[0009] By setting a limiting groove, the locking block is more stably mounted on the lever with fasteners, preventing it from sliding left or right relative to the lever. This ensures that the second torsion bar can reliably move when the lever moves. The guide notch and guide through hole facilitate the installation of the second torsion bar and limit its movement, ensuring that the second torsion bar moves synchronously with the locking block and does not detach from it.

[0010] Preferably, the lever has a recessed portion for the helical part to make way, and the recessed portion is disposed opposite to the limiting groove; a positioning through hole for installing fasteners is provided at a position adjacent to the recessed portion.

[0011] During the switching process, the spiral part of the second torsion bar will undergo elastic deformation and rotate. By setting the concave part, the spiral part will not interfere with the lever, ensuring that the spiral part is always in a compressed state and can generate a stable elastic force.

[0012] Preferably, the guide notch and the guide through hole are coaxially arranged, and the end of the second torsion bar away from the helical part is provided with a first curved part, which is connected to the side wall of the locking block.

[0013] The guide notch and guide through hole are coaxially aligned, ensuring that the second torsion bar will not interfere with the lever or locking block when it moves closer to or away from the first torsion bar. The second torsion bar remains axially aligned and will not be bent. The first bend facilitates installation of the second torsion bar onto the locking block; the operator can easily adjust the position of the second torsion bar by moving the first bend, preventing injury from the sharp end of the second torsion bar. Simultaneously, the first bend acts as a limit, preventing the second torsion bar from easily detaching from the locking block.

[0014] Preferably, the handle housing is provided with a mounting channel for mounting a first torsion bar, the length of the first torsion bar is greater than the length of the mounting channel and the first torsion bar is arranged along the axial direction of the mounting channel; the inner wall of the mounting channel is a triangular prism, and the first torsion bar abuts against the edge of the triangular prism.

[0015] The first torsion bar is set in the installation channel, so that the first torsion bar can rotate relative to the installation channel; the first torsion bar is connected to the helical part, and the helical part is always in an elastic compression state, so that the first torsion bar will always abut against the edge of the triangular prism due to the elastic force of the helical part, and the position of the first torsion bar will not change during the rotation.

[0016] Preferably, a transition rod is provided between the first torsion bar and the helical part to connect the two, and the axial direction of the transition rod is not on the same axis as the axial direction of the first torsion bar; a second curved part is provided at the end of the first torsion bar away from the helical part, and the second curved part is arranged adjacent to the opening sidewall of the mounting channel.

[0017] A transition rod is provided between the first torsion bar and the helical part to connect the two. The axis of the transition rod is not on the same axis as the axis of the first torsion bar. In this way, the first torsion bar will not interfere with the inner wall of the installation channel during rotation, and the wear of the inner wall of the installation channel is small during rotation. Thus, the first torsion bar can be stably installed in the installation channel. By providing a second curved part at the end of the first torsion bar, it is possible to prevent the end of the first torsion bar from injuring the operator. The second curved part limits the first torsion bar to hook onto the side wall of the opening of the installation channel, so that the first torsion bar will not detach from the installation channel.

[0018] Preferably, the handle housing has a mold hole on the inner wall facing the mounting channel, and there is a gap between the mold hole and the mounting channel; the end of the handle housing facing away from the mounting channel has a rubber component and a mounting component, the rubber component is disposed between the mounting component and the handle housing and is connected to the handle housing through the mounting component; the end face of the mounting component facing the handle housing has a boss, the boss is disposed in the mold hole, and the outer contour of the boss matches the outer contour of the mold hole.

[0019] A gap exists between the mold hole and the mounting channel, preventing the helical part from interfering with the inner wall of the handle housing during elastic deformation. Simultaneously, the boss on the mounting component blocks the mold hole, further stabilizing the sidewall structure of the handle housing. The rubber component reduces vibrations generated during power tool operation, resulting in less vibration on the handle housing.

[0020] Preferably, the handle housing, mounting component, rubber component, and handle cover are fixed together by screws, with the screws passing through the handle cover, handle housing, rubber component, and mounting component in sequence, thus making the connection between the handle housing, mounting component, rubber component, and handle cover more secure.

[0021] Preferably, the switch trigger has paired limiting protrusions, each of which is symmetrically arranged on two side walls of the switch trigger. There is a height difference between the limiting protrusion and the first protrusion, and the first protrusion is located close to the second locking block. The handle housing has abutment parts for limiting the rotation of the switch trigger at the position facing the limiting protrusions. The abutment parts are paired and correspond one-to-one with the limiting protrusions. When the limiting protrusions and the abutment parts are in contact with each other, the switch body is in the off state. When the limiting protrusions are away from the abutment parts and the switch trigger is in contact with the conductive contacts on the switch body, the switch body is in the on state. A return spring is provided between the switch trigger and the conductive contacts on the switch body. When the locking component is in the unlocked state, the return spring causes the switch trigger to rotate.

[0022] The switch trigger is in a position away from the switch body by default, and the switch body is in the off state. By providing a limiting protrusion and a stop, the switch trigger is stably maintained in this position away from the switch body under the force of the return spring, with the limiting protrusion and the stop fitting together. Only by applying external force to move the switch trigger closer to the switch body can the switch body switch from the off state to the on state. Then, the locking assembly locks the switch trigger in the on state, thus stably maintaining the switch body in the on state. When power tools are not needed, the locking assembly is unlocked, causing the switch trigger to rotate under the force of the return spring. The limiting protrusion on the switch trigger moves closer to the stop, and eventually, the limiting protrusion and the stop fit together. When the switch body is in the off state, the end face of the locking block facing the lever pressing part is adjacent to the first protrusion, preventing the lever from being pushed. Therefore, when the switch body is in the off state, the locking assembly is unlocked and cannot switch to the locked state.

[0023] Compared with the prior art, the present invention has the following advantages: The present invention provides a locking component and a switch body on the handle housing, the locking component and the switch body being separately arranged. The switch body is provided with a switch trigger that can rotate relative to it. The locking component locks the position of the switch trigger, so that the switch trigger and the conductive contact on the switch body are in contact with each other, thus the switch body can be stably maintained in the conductive state. The locking component has a good and reliable locking effect and is simple and convenient to operate. The locking component includes a lever, a locking block, and an elastic element. One end of the elastic element is hinged to the handle housing, and the other end is hinged to the lever, so that when the lever pushes the locking block to move, the elastic element will produce elastic deformation. When the locking block is in contact with the first protrusion on the switch trigger, the locking component is in the locked state; when the locking block is offset from the first protrusion and in contact with the inner wall of the handle housing, the component is in the unlocked state. The elastic element can stably maintain the locking component in the unlocked or locked state, thus preventing the operator from accidentally touching the locking component and switching its state. Therefore, the locking component makes the switch body work more safely and reliably. Therefore, the present invention facilitates switching between the two states of the locking component, the switching process is simple and effortless, and the locking component can stably maintain either the locked or unlocked state, which is safe and reliable. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a perspective view of the concealed handle cover of the present invention;

[0026] Figure 3 This is an exploded view of the present invention;

[0027] Figure 4 A 3D view of the handle housing;

[0028] Figure 5 A 3D view of the locking component;

[0029] Figure 6 This is a 3D view of the lever;

[0030] Figure 7 This is a three-dimensional diagram of an elastic element;

[0031] Figure 8 This is a 3D view of the locking block.

[0032] The markings in the diagram are: 1. Handle housing; 2. Handle cover; 3. Switch body; 4. Switch trigger; 41. First protrusion; 5. Locking assembly; 51. Lever; 52. Locking block; 520. Second protrusion; 53. Elastic element; 530. Spiral part; 531. First torsion bar; 532. Second torsion bar; 533. First bending part; 534. Transition bar; 535. Second bending part; 54. Limiting groove; 55. Guide notch; 56. Guide through hole; 57. Concave part; 58. Positioning through hole; 59. Fastener; 6. Mounting hole; 7. Mounting channel; 8. Mold hole; 9. Rubber part; 10. Mounting part; 11. Boss; 12. Screw; 13. Limiting protrusion; 14. Abutment part. Detailed Implementation

[0033] The present invention will be further described below with reference to the embodiments illustrated in the accompanying drawings:

[0034] like Figures 1 to 8 As shown, this embodiment discloses a switch device with a assisted reciprocating lever, including a handle housing 1 and a handle cover 2. The handle housing 1 is provided with a switch body 3 detachably connected thereto. A switch trigger 4 is provided between the handle housing 1 and the switch body 3. The switch trigger 4 is hinged to the switch body 3 and has a first protrusion 41. The handle housing 1 is provided with a locking assembly 5 for limiting the rotation of the switch trigger 4. The locking assembly 5 includes a lever 51 and a locking block 52 provided on the lever 51, and also includes an elastic element 53 provided between the handle housing 1 and the lever 51. The lever 51 is mounted on the handle housing 1 and passes through the two side walls of the handle housing 1; when the lever 51 is pushed so that the side wall of the locking block 52 is in contact with the inner wall of the handle housing 1, the locking assembly 5 is in the unlocked state; when the lever 51 is pushed so that the locking block 52 is between the two inner walls of the handle housing 1 and the locking block 52 is in contact with the first protrusion 41, the locking assembly 5 is in the locked state; one end of the elastic element 53 is hinged to the handle housing 1 and the other end is hinged to the lever 51; when the locking assembly 5 is in the locked state or the unlocked state, the elastic element 53 is in the elastic deformation state.

[0035] The handle housing 1 is provided with a mounting hole 6 for mounting a lever 51, and the lever 51 passes through the mounting hole 6; the locking block 52 is fixedly connected to the lever 51 by a fastener 59; the end face of the locking block 52 facing the switch trigger 4 is provided with a second protrusion 520, the side of the second protrusion 520 is in the same plane as the side of the locking block 52, the locking assembly 5 is in a locked state when the first protrusion 41 and the second protrusion 520 are in contact with each other, and the locking assembly 5 is in an unlocked state when the first protrusion 41 and the second protrusion 520 are offset from each other; the elastic element 53 includes a spiral part 530, and also includes a first torsion bar 531 and a second torsion bar 532 extending outward from the spiral part 530, the first torsion bar 531 is hinged to the handle housing 1, and the second torsion bar 532 is hinged to the lever 51. The lever 51 is provided with a limiting groove 54 for mounting a locking block 52. The two inner walls of the limiting groove 54 along the axial direction of the lever 51 respectively fit against two parallel end faces of the locking block 52. The upper end face of the locking block 52 is higher than the upper end face of the lever 51. The lever 51 is also provided with a guide notch 55 for mounting a second torsion bar 532. The locking block 52 is provided with a guide through hole 56 for placing the second torsion bar 532. The second torsion bar 532 passes through the guide notch 55 and exits from the guide through hole 56. The lever 51 is provided with an inner recess 57 for the helical part 530 to make way. The inner recess 57 is positioned opposite to the limiting groove 54. A positioning through hole 58 for mounting a fastener 59 is provided adjacent to the inner recess 57. The guide notch 55 and the guide through hole 56 are coaxially arranged. The second torsion bar 532 has a first bending part 533 at its end away from the spiral part 530. The first bending part 533 is connected to the side wall of the locking block 52.

[0036] The handle housing 1 has a mounting channel 7 for mounting a first torsion bar 531. The length of the first torsion bar 531 is greater than the length of the mounting channel 7, and the first torsion bar 531 is arranged along the axial direction of the mounting channel 7. The inner wall of the mounting channel 7 is a triangular prism, and the first torsion bar 531 abuts against the edge of the triangular prism. A transition rod 534 is provided between the first torsion bar 531 and the helical part 530, and the axial direction of the transition rod 534 is not on the same axis as the axial direction of the first torsion bar 531. The end of the first torsion bar 531 away from the helical part 530 has a second curved part 535, and the second curved part 535 is adjacent to the opening sidewall of the mounting channel 7. The handle housing 1 has a mold hole 8 on its inner wall facing the mounting channel 7, and there is a gap between the mold hole 8 and the mounting channel 7. The end of the handle housing 1 facing away from the mounting channel 7 has a rubber component 9 and a mounting component 10. The rubber component 9 is positioned between the mounting component 10 and the handle housing 1, and is connected to the handle housing 1 via the mounting component 10. The end face of the mounting component 10 facing the handle housing 1 has a boss 11, which is located within the mold hole 8, and the outline of the boss 11 matches the outline of the mold hole 8. The handle housing 1, the mounting component 10, the rubber component 9, and the handle cover 2 are fixed together by screws 12, which pass sequentially through the handle cover 2, the handle housing 1, the rubber component 9, and the mounting component 10.

[0037] The switch trigger 4 is provided with a pair of limiting protrusions 13, each of which is symmetrically arranged on two side walls of the switch trigger 4. There is a height difference between the limiting protrusion 13 and the first protrusion 41, and the first protrusion 41 is located close to the second locking block 52. The handle housing 1 is provided with abutment 14 for limiting the rotation of the switch trigger 4 at the position facing the limiting protrusion 13. The abutment 14 is provided in pairs and corresponds one-to-one with the limiting protrusion 13. When the limiting protrusion 13 and the abutment 14 are in contact with each other, the switch body 3 is in the off state. When the limiting protrusion 13 is away from the abutment 14 and the switch trigger 4 is in contact with the conductive contact on the switch body 3, the switch body 3 is in the on state. A return spring is provided between the switch trigger 4 and the conductive contact on the switch body 3. When the locking component 5 is in the unlocked state, the return spring causes the switch trigger 4 to rotate.

[0038] The specific operation process of this embodiment is as follows: In the default state, the switch trigger 4 is located away from the switch body 3, and the switch body 3 is in the open state. At this time, the limiting protrusion 13 and the abutment 14 are in contact with each other. The operator uses external force to pull the switch trigger 4 closer to the conductive contact on the switch body 3, thus switching the switch body 3 from the default open state to the conductive state. Then, the locking component 5 locks the switch trigger 4 in the conductive state, so that the switch body 3 can be stably maintained in the conductive state. When the power tool is not needed, the locking component 5 is opened to be in the unlocked state. The switch trigger 4 rotates under the action of the return spring, and the limiting protrusion on the switch trigger 4 moves closer to the abutment 14, and finally the limiting protrusion 13 and the abutment 14 are in contact with each other. When the switch body is in the open state, the locking block 52 is adjacent to the first protrusion 41 on the end face facing the pressing part of the lever 51, so the lever 51 cannot be pushed. Therefore, when the switch body 3 is in the open state, the locking component 5 is in the unlocked state and cannot be switched to the locked state.

[0039] The specific working principle of the locking component 5 is as follows: the locking component 5 is in the unlocked state by default. When it is necessary to switch the locking component 5 from the unlocked state to the locked state, push the lever 51 to make the locking block 52 on the lever 51 move from the side wall of the handle housing 1 toward the switch trigger 4. When the second protrusion 520 on the locking block 52 and the first protrusion 41 on the switch trigger 4 are in contact with each other, the end face of the locking block 52 facing away from the second protrusion 520 abuts against the inner wall of the handle housing 1. At this time, the switch trigger 4 cannot rotate relative to the switch body 3 due to the limitation of the locking block 52. At this time, the locking component 5 is in the locked state. When the locking component 5 switches from the unlocked state to the locked state, the first torsion bar 531 on the elastic element 53 rotates relative to the handle housing 1, and the second torsion bar 532 rotates relative to the first torsion bar 531 with the first torsion bar 531 as the rotation axis. During the movement of the locking block 52, the second torsion bar 532 will move. During the switching of the locking component 5, the second torsion bar 532 will first move closer to the first torsion bar 531, and then move away from the first torsion bar 531. When the locking component 5 is in the unlocked state, the second torsion bar 532 is in the initial position. When the locking component 5 is in the locked state, the second torsion bar 532 is in the final position. The process of the second torsion bar 532 switching from the initial position to the final position will pass through an intermediate critical position. When the second torsion bar 532 is in the intermediate critical position, the elastic deformation of the spiral part 530 is the largest. The second torsion bar 532 cannot be stably maintained in the intermediate critical position and will automatically move with the locking block 52 to the final position. Since the elastic deformation of the helical portion 530 when the second torsion bar 532 is in its final position is less than that when the second torsion bar 532 is in its intermediate critical position, if it is necessary to change the position of the second torsion bar 532, an external force is required to overcome the elastic force generated by the helical portion 530. Therefore, the second torsion bar 532 can be stably maintained in its final position without the action of an external force, and thus the locking assembly 5 can be stably maintained in the locked state.

[0040] When it is necessary to switch the locking component 5 from the locked state to the unlocked state, push the lever 51 to move the second protrusion 520 on the locking block 52 away from the first protrusion 41 on the switch trigger 4. When the side wall of the locking block 52 abuts against the side wall of the handle housing 1, the locking component 5 is in the unlocked state. At this time, the switch trigger 4 can rotate relative to the switch body 3 without being limited by the locking block 52. Similarly, the locking component 5 can also be stably maintained in the unlocked state. When the locking component 5 switches from the locked state to the unlocked state, the second torsion bar 532 switches from its final position to its initial position. During the switching process, the second torsion bar 532 passes through an intermediate critical position. Since the elastic deformation of the helical part 530 is at its maximum at this time and there are no limits on the left and right sides of the locking block 52, the locking block 52 will drive the second torsion bar 532 to continue moving. When the locking block 52 abuts against the inner wall of the handle housing 1, the second torsion bar 532 is in its initial position. The elastic force generated by the helical part 530 makes the locking block 52 stably abut against the inner wall of the handle housing 1, so the locking component 5 can also stably maintain the unlocked state. It can be seen that the switching between the two states of the locking component 5 is effortless and reliable, and the locking component 5 can also stably maintain either the locked or unlocked state.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A switch device with an assisted reciprocating lever, comprising a handle housing (1) and a handle cover (2), wherein a switch body (3) is detachably connected thereto within the handle housing (1), characterized in that, A switch trigger (4) is provided between the handle housing (1) and the switch body (3). The switch trigger (4) is hinged to the switch body (3) and has a first protrusion (41). A locking assembly (5) for limiting the rotation of the switch trigger (4) is provided on the handle housing (1). The locking assembly (5) includes a lever (51) and a locking block (52) disposed on the lever (51), and also includes an elastic element (53) disposed between the handle housing (1) and the lever (51). The lever (51) is mounted on the handle housing (1) and passes through the two side walls of the handle housing (1). When the lever (51) is pushed to make the side wall of the locking block (52) fit against the inner wall of the handle housing (1), the locking assembly (5) is in a position where... Unlocked state; when the lever (51) is pushed so that the locking block (52) is between the two inner walls of the handle housing (1) and the locking block (52) is in contact with the first protrusion (41), the locking assembly (5) is in the locked state; one end of the elastic element (53) is hinged to the handle housing (1) and the other end is hinged to the lever (51). When the locking assembly (5) is in the locked state or the unlocked state, the elastic element (53) is in the elastic deformation state; the handle housing (1) is provided with a mounting hole (6) for mounting the lever (51), and the lever (51) is set through the mounting hole (6); the locking block (52) is fixedly connected to the lever (51) by a fastener (59); the locking block (52) faces the switch trigger ( 4) The end face is provided with a second protrusion (520). The side of the second protrusion (520) is in the same plane as the side of the locking block (52). When the first protrusion (41) and the second protrusion (520) are in contact with each other, the locking component (5) is in a locked state. When the first protrusion (41) and the second protrusion (520) are offset from each other, the locking component (5) is in an unlocked state. The elastic element (53) includes a spiral part (530) and also includes a first torsion bar (531) and a second torsion bar (532) extending outward from the spiral part (530). The first torsion bar (531) is hinged to the handle housing (1), and the second torsion bar (532) is hinged to the lever (51). The lever (51) is provided with a mounting lock. The limiting groove (54) of the block (52) is respectively fitted with two parallel end faces on the locking block (52) along the two inner walls of the lever (51) along the axial direction. The upper end face of the locking block (52) is higher than the upper end face of the lever (51). The lever (51) is also provided with a guide notch (55) for installing a second torsion bar (532). The locking block (52) is provided with a guide through hole (56) for placing the second torsion bar (532). The second torsion bar (532) passes through the guide notch (55) and exits from the guide through hole (56). The lever (51) is provided with an inner recess (57) for the helical part (530) to make way. The inner recess (57) is set away from the limiting groove (54).A positioning through hole (58) for mounting a fastener (59) is provided adjacent to the recess (57).

2. The switching device with assisted reciprocating lever according to claim 1, characterized in that, The guide notch (55) is coaxially arranged with the guide through hole (56), and the end of the second torsion bar (532) away from the spiral part (530) is provided with a first curved part (533), and the first curved part (533) is connected to the side wall of the locking block (52).

3. The switching device with assisted reciprocating lever according to claim 1, characterized in that, The handle housing (1) is provided with an installation channel (7) for installing a first torsion bar (531). The length of the first torsion bar (531) is greater than the length of the installation channel (7) and the first torsion bar (531) is arranged along the axial direction of the installation channel (7). The inner wall profile of the installation channel (7) is a triangular prism, and the first torsion bar (531) abuts against the edge of the triangular prism.

4. The switching device with assisted reciprocating lever according to claim 3, characterized in that, A transition rod (534) is provided between the first torsion bar (531) and the helical part (530) to connect the two. The axial direction of the transition rod (534) is not on the same axis as the axial direction of the first torsion bar (531). A second curved part (535) is provided at the end of the first torsion bar (531) away from the helical part (530). The second curved part (535) is adjacent to the opening sidewall of the mounting channel (7).

5. The switching device with assisted reciprocating lever according to claim 3, characterized in that, The handle housing (1) has a mold hole (8) on its inner wall facing the mounting channel (7), and there is a gap between the mold hole (8) and the mounting channel (7); the handle housing (1) has a rubber part (9) and a mounting part (10) on the side facing away from the mounting channel (7), the rubber part (9) is disposed between the mounting part (10) and the handle housing (1) and the rubber part (9) is connected to the handle housing (1) through the mounting part (10); the mounting part (10) has a boss (11) on its end face facing the handle housing (1), the boss (11) is disposed in the mold hole (8), and the outline of the boss (11) matches the outline of the mold hole (8).

6. The switching device with assisted reciprocating lever according to claim 5, characterized in that, The handle housing (1), mounting part (10), rubber part (9) and handle cover (2) are fixed to each other by screws (12), and the screws (12) pass through the handle cover (2), handle housing (1), rubber part (9) and mounting part (10) in sequence.

7. The switching device with assisted reciprocating lever according to claim 1, characterized in that, The switch trigger (4) is provided with a pair of limiting protrusions (13), each of which is symmetrically arranged on two side walls of the switch trigger (4). There is a height difference between the limiting protrusion (13) and the first protrusion (41), and the first protrusion (41) is located close to the second locking block (52). The handle housing (1) is provided with abutment (14) for limiting the rotation of the switch trigger (4) at the position facing the limiting protrusion (13). The abutment (14) is provided in pairs and is located with the limiting protrusion. (13) One-to-one correspondence; when the limiting protrusion (13) and the abutment (14) are in contact with each other, the switch body (3) is in the open state; when the limiting protrusion (13) is away from the abutment (14) and the switch trigger (4) and the conductive contact on the switch body (3) are in contact with each other, the switch body (3) is in the conductive state; a reset spring is provided between the switch trigger (4) and the conductive contact on the switch body (3); when the locking component (5) is in the unlocked state, the reset spring causes the switch trigger (4) to rotate.

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