Switch panel with double-lever switch stroke amplification mechanism

Abstract

The invention relates to a switch panel with a double-lever switch stroke amplification mechanism, the switch panel comprises a button plate, a bending lever, torsion levers, a function module and a bottom plate which are sequentially arranged from top to bottom, the torsion levers are symmetrically arranged on two sides of the bottom plate, and the function module is arranged on the bottom plate. The function modules are arranged on the two sides of the bent lever, and the bent lever is arranged in the center of the bottom plate. The button panel is used for providing operating force for the switch panel, the bending lever and the torsion lever form a double-lever mechanism, the bending lever is used for driving the function module to complete switching actions, and a reset piece of the function module is reset through internal elastic force. The switch panel is reset through the elastic force of the elastic arm of the torsion lever. According to the switch panel with the double-lever switch stroke amplification mechanism, amplification is driven by the double-lever mechanism, so that the switch panel can obtain a smaller stroke.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical switches, in particular to a small-stroke switch amplification mechanism, specifically to a switch panel with a double-lever switch stroke amplification mechanism. Background Art

[0002] Prior art CN 218631742 U discloses a panel switch, such as Figure 1 As shown, the panel switch includes at least one actuating plate 25. When the switch cover 10 is pressed, the actuating plate 25 is driven by the cover 10 to rotate around the protruding plate 21, and its free end 28 then drives the switch module 40. In principle, the actuating plate 25 is a lever. Through the amplification effect of the lever, the smaller stroke of the cover 10 is used to obtain a larger driving stroke of the switch module 40. This switch has a smaller stroke than the traditional switch cover, and the user experience is better. However, due to the large elastic deformation of the plastic part, when pressing at the two ends or four corners of the switch cover 10, a larger stroke is required to drive the switch module 40. This stroke is twice the middle pressing stroke, which still affects the user experience. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a switch panel with a double-lever switch travel amplification mechanism that can effectively enhance user experience.

[0004] In order to achieve the above object, the switch panel with a double-lever switch travel amplification mechanism of the present invention is as follows: The switch panel with a double-lever switch stroke amplification mechanism has the following main features: the switch panel includes: a button panel, a bending lever, a torsion lever, a functional module and a bottom plate arranged in sequence from top to bottom, wherein the torsion lever is symmetrically arranged on both sides of the bottom plate, the functional module is arranged on both sides of the bending lever, and the bending lever is arranged at the center of the bottom plate; the button panel is used to provide operating force for the switch panel, the bending lever and the torsion lever constitute a double-lever mechanism, the bending lever is used to drive the functional module to complete the switching action, the reset member of the functional module is reset by internal elastic force, and the switch panel is reset by elastic force through the elastic arm of the torsion lever.

[0005] Preferably, the bending lever includes: a first shaft portion, a driving portion, a first driven portion and a second driven portion symmetrically arranged at two ends, and the two ends are connected by a pivot; the driving portion is used to drive the reset member arranged on the functional module, so that the functional module completes the switching function action, and the bending lever and the torque lever are connected by a micro-elastic arm structure.

[0006] Preferably, the torsion lever adopts a bending-torsion composite lever structure, and its two ends adopt a pivot structure, and the torsion lever is provided with a driving arm, a micro-elastic arm, a driven arm, an elastic arm, and a second shaft portion, wherein the driving arm, the driven arm, the elastic arm and the second shaft portion are symmetrically arranged, and the micro-elastic arm is arranged on the driving arm, and the driving arm is used to drive the first driven portion of the bending lever so that the bending lever rotates around the first shaft portion; under the action of the elastic force of the elastic arm, the bending lever is in a reset state driven by the driving arm and the micro-elastic arm.

[0007] Preferably, the elastic arm is arranged at a position close to the guide structure of the button plate to prevent the button plate from getting stuck during the resetting process and always keep pressing the first follower part of the bending lever to ensure that the resetting action is completed following the torque lever.

[0008] Preferably, the button plate is provided with a plurality of ribs; When the four corners or the upper and lower edges of the button plate are pressed, at least one pressing rib abuts against the driven arm of the torsion lever, so that the torsion lever rotates around the second shaft portion; When the middle position of the button plate is pressed, at least one pressing rib abuts against the second driven portion of the bending lever, so that the driving portion can drive the reset member.

[0009] Preferably, the elastic arm of the torsion lever acts through elastic force so that when the button plate is not pressed, the button plate is pushed to the highest position through the driven arm.

[0010] Preferably, the button panel is provided with at least one driving rib.

[0011] Preferably, buckles are provided on the four corners of the button panel to limit the position of the button panel and have a floating guide function.

[0012] Preferably, a buckle structure is provided on the bottom plate, and the buckle structure is used to limit the warping deformation of the torsion lever through a buckle portion provided in the middle of the torsion lever.

[0013] The switch panel with the double-lever switch travel amplification mechanism of the present invention has the following significant advantages: ① The double lever mechanism is used to drive the amplification, so that the switch panel can obtain a smaller stroke; ② By adjusting the magnification ratio and driving point position of the two levers, the elastic deformation of the material can be compensated so that the switch panels at different pressing points can obtain consistent stroke; ③The torsion lever adopts a bending-torsion compound lever, which can realize torque transmission over a long distance and realize the first-level amplification of the lever; ④The elastic arm of the torque lever is arranged near the guide structure of the button plate to prevent the button plate from getting stuck during the resetting process; ⑤ The micro-elastic arm structure of the torsion lever effectively ensures that the bending lever is separated from the reset part in the functional module when it is close to the reset position, without affecting its reset. Since the two parts of the connection move in the same direction, only a small elastic deformation is required to compensate for their speed difference; ⑥ A buckle part is set in the middle of the torsion lever, which effectively limits the warping deformation of the torsion lever and improves the reliability of the mechanism action. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a structure of a switch panel adopted in the prior art.

[0015] Figure 2 It is an exploded view of the switch panel with the double-lever switch travel amplification mechanism of the present invention.

[0016] Figure 3 The figure is a front view of the switch panel with the double-lever switch travel amplification mechanism of the present invention.

[0017] Figure 4 The figure is a top view of the switch panel with the double-lever switch travel amplification mechanism of the present invention with the button plate removed.

[0018] Figure 5 It is a schematic diagram of the switch panel with the double-lever switch travel amplification mechanism of the present invention in the initial state of the cross section.

[0019] Figure 6 It is a schematic diagram of the switch panel with the double-lever switch travel amplification mechanism of the present invention in the cross-section end state.

[0020] Figure 7 The figure is a schematic diagram of a button plate of a switch panel with a double-lever switch travel amplification mechanism according to the present invention.

[0021] Figure 8 It is a schematic diagram of the bending lever of the switch panel with the double-lever switch travel amplification mechanism of the present invention. Attached photos

[0022] 1 button board 11. Pressing ribs 12 long ribs 13 buckle positions 2 bent levers 21 First shaft 22. Drive unit 23 first driven part 24 Second driven part 3Torque lever 32 drive arm 321 Micro-elastic Arm 33 follower arm 34 Elastic Arm 35 Second shaft 36 buckle position 4 Functional modules 41 reset piece 5 Bottom plate Implementation

[0023] In order to more clearly describe the technical content of the present invention, further description is given below in conjunction with specific embodiments.

[0024] Before describing in detail embodiments according to the present invention, it should be noted that, hereinafter, the terms "comprises", "includes" or any other variations are intended to cover non-exclusive inclusion, whereby a process, method, article or apparatus comprising a series of elements includes not only these elements, but also other elements not explicitly listed or inherent to such process, method, article or apparatus.

[0025] See also Figures 2 to 4 As shown, the switch panel with a double-lever switch stroke amplification mechanism, wherein the switch panel includes: a button plate 1, a bending lever 2, a torsion lever 3, a functional module 4 and a base plate 5 arranged in sequence from top to bottom, wherein the torsion lever 3 is symmetrically arranged on both sides of the base plate 5, the functional module 4 is arranged on both sides of the bending lever 2, and the bending lever 2 is arranged at the center of the base plate 5; the button plate 1 is used to provide operating force for the switch panel, the bending lever 2 and the torsion lever 3 constitute a double-lever mechanism, the bending lever 2 is used to drive the functional module 4 to complete the switching action, the reset member of the functional module 4 is reset by internal elastic force, and the switch panel is reset by elastic force through the elastic arm of the torsion lever 3.

[0026] See also Figure 2 and Figure 8 As shown, as a preferred embodiment of the present invention, the bending lever 2 includes: a first shaft portion 21, a driving portion 22, a first driven portion 23 and a second driven portion 24 symmetrically arranged at two ends, and the two ends are connected by a pivot; the driving portion 22 is used to drive the reset member 41 arranged on the functional module 4, so that the functional module 4 completes the switching function action, and the bending lever 2 and the torque lever 3 are connected by a micro-elastic arm structure.

[0027] As a preferred embodiment of the present invention, the torsion lever 3 adopts a bending-torsion composite lever structure, and its two ends adopt a pivot structure. The torsion lever 3 is provided with a driving arm 32, a micro-elastic arm 321, a driven arm 33, an elastic arm 34, and a second shaft portion 35, wherein the driving arm 32, the driven arm 33, the elastic arm 34 and the second shaft portion 35 are symmetrically arranged, and the micro-elastic arm is arranged on the driving arm. The driving arm 32 is used to drive the first driven portion 23 of the bending lever 2 so that the bending lever 2 rotates around the first shaft portion 21; under the action of the elastic force of the elastic arm 34, the bending lever 2 is in a reset state driven by the driving arm 32 and the micro-elastic arm 321.

[0028] As a preferred embodiment of the present invention, the elastic arm 34 is arranged at a position close to the guide structure of the button plate 1, so as to prevent the button plate 1 from getting stuck during the resetting process and always keep pressing the first follower part 23 of the bending lever 2 to ensure that the resetting action is completed following the torque lever 3.

[0029] See also Figure 7 As shown, as a preferred embodiment of the present invention, the button plate 1 is provided with a plurality of ribs 11; When the four corners or the upper and lower edges of the button plate 1 are pressed, at least one pressing rib 11 abuts against the driven arm 33 of the torsion lever 3, so that the torsion lever 3 rotates around the second shaft portion 35; When the middle position of the button plate 1 is pressed, at least one pressing rib 11 abuts against the second driven portion 24 of the bending lever 2 , so that the driving portion 22 can drive the reset member 41 .

[0030] As a preferred embodiment of the present invention, the elastic arm 34 of the torsion lever 3 acts through elastic force so that when the button plate 1 is not pressed, the button plate 1 is pushed to the highest position through the driven arm 33 .

[0031] As a preferred embodiment of the present invention, the button plate 1 is provided with at least one driving rib.

[0032] As a preferred embodiment of the present invention, buckles 13 are provided on the four corners of the button panel 1 to limit the position of the button panel 1 and have a floating guide function.

[0033] As a preferred embodiment of the present invention, a buckle structure 51 is provided on the bottom plate 5 , and the buckle structure 51 is used to limit the warping deformation of the torsion lever 3 through the buckle portion 36 provided in the middle of the torsion lever 3 .

[0034] In practical applications, such as Figure 5 As shown in the cross sections CC and DD when the switch is in the initial state, under the elastic force of the elastic arm 34 of the torsion lever 3, its driven arm 33 (the master-slave relationship is based on when the button plate 1 is pressed) pushes the button plate 1 to the highest position, that is, it is in the reset state. The bending lever 2 is also in the reset state driven by the driving arm 32 and the micro-elastic arm 321 of the torsion lever 3. The reset member 41 in the functional module 4 is also in the reset state under the action of the elastic force inside the module, as shown in FIG. Figure 5 The cross section BB is shown.

[0035] Under the action of the operating force P, if the four corners or the upper and lower edges of the button plate 1 are pressed, at least one of the ribs 11 on the button plate 1 will first contact the driven arm 33 of the torsion lever 3, causing the torsion lever 3 to rotate around the axis 35, thereby driving the driven part 23 of the bending lever 2 through the driving arm 32 to cause the bending lever 2 to rotate around the axis 21, and the corresponding driving part 22 then drives the reset part 41 in the functional module 4, thereby completing the on-off action of the switch. Afterwards, the operating force P is removed, and the above mechanism is reset under the elastic force of the elastic arm 34. In order for the bending lever not to interfere with the reset part 41 in the functional module 4, the micro-elastic arm 321 is used to always press the first driven part 23 of the bending lever 2 ( Figure 6 ), to ensure that it can follow the torsion lever to reset and will not hinder the reset of the reset member 41; if the middle part of the button plate 1 is pressed, at least one of the long pressure ribs 12 on the button plate 1 will first abut against the driven portion 24 of the bending lever 2, so that the driving portion 22 will drive the reset member 41 in the functional module 4. During this process, the torsion lever 3 will also repeat the above action as in the above process. If its action lags behind the bending lever 2, the bending lever 2 will have a certain driving effect on the torsion lever 3 through the micro-elastic arm 321 of the torsion lever 3. If its action is ahead of the bending lever 2, the driving arm 32 of the torsion lever 3 will have a certain driving effect on the bending lever 2.

[0036] Thereafter, under the action of the operating force P again, the above process will be repeated.

[0037] Compared with the prior art, this technical solution has made the following improvements: Technical measure 1: The double lever mechanism drives the amplification, and the switch panel can obtain a smaller stroke; Technical measure 2: By adjusting the magnification ratio and driving point position of the two levers, the elastic deformation of the material can be compensated, so that the switch panels at different pressing points can obtain consistent stroke; Technical measure three: Torsion lever 3 adopts a bending-torsion compound lever, which can realize torque transmission over a long distance and realize the first-level amplification of the lever; Technical measure 4: The elastic arm 321 of the torsion lever 3 is arranged near the guide structure of the button plate 1 to prevent the button plate 1 from getting stuck during the resetting process; Technical measure 5: The micro-elastic arm structure of the torsion lever 3 effectively ensures that the bending lever 2 is separated from the reset part in the functional module 4 when it is close to the reset position, without affecting its reset. Since the two parts of the connection have the same movement direction, only a small elastic deformation is required to compensate for their speed difference. Technical measure six: A buckle portion 36 is provided in the middle of the torsion lever 3 , and a buckle structure 51 is provided on the corresponding bottom plate 5 to limit the warping deformation of the torsion lever 3 .

[0038] In a specific embodiment of the present invention, the switch panel with a double-lever switch stroke amplification mechanism includes a button plate 1, a torsion lever 3, a bending lever 2, a base plate 5 and a functional module. The torsion lever 3 and the bending lever 2 form a double-lever mechanism. After the secondary amplification of the stroke of the button plate 1, the bending lever 2 drives the functional module 4 to complete the switching action.

[0039] By adjusting the magnification ratio and driving point position of the two levers, the elastic deformation of the material can be compensated to achieve the purpose of achieving consistent travel for switch panels at different pressing points; the torsion lever 3 adopts a bending-torsion composite lever, which can realize torque transmission over a long distance and realize the first-level magnification of the lever; the elastic arm of the torsion lever 3 is arranged near the guide structure of the button plate 1 to prevent the button plate from getting stuck during the reset process; the connection part of the torsion lever 3 and the bending lever 2 adopts a micro-elastic arm structure to ensure that it does not affect the reset of the reset part in the functional module; the torsion lever 3 Pivot structures are provided at both ends; the torsion lever 3 is symmetrically provided with a driven arm and a driving arm; a buckle portion 36 is provided in the middle of the torsion lever 3, and a buckle structure 51 is provided on the corresponding base plate 5 to limit the warping deformation of the torsion lever; according to claim 7, a micro-elastic arm 321 is provided on the driving arm 32; a driven portion and a driving portion are respectively provided at both ends of the bending lever 2; a pivot is provided in the middle part of the bending lever 2; at least one driving rib of an amplifying mechanism is provided on the button plate 1; four buckle positions 13 are provided on the button plate 1, which are used to limit the position of the button plate 1 and have a floating guide function.

[0040] In the description of this specification, the description with reference to the terms "an embodiment", "some embodiments", "example", "specific example", or "embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0042] The switch panel with the double-lever switch travel amplification mechanism of the present invention has the following significant advantages: ① The double lever mechanism is used to drive the amplification, so that the switch panel can obtain a smaller stroke; ② By adjusting the magnification ratio and driving point position of the two levers, the elastic deformation of the material can be compensated so that the switch panels at different pressing points can obtain consistent stroke; ③The torsion lever adopts a bending-torsion compound lever, which can realize torque transmission over a long distance and realize the first-level amplification of the lever; ④The elastic arm of the torque lever is arranged near the guide structure of the button plate to prevent the button plate from getting stuck during the resetting process; ⑤ The micro-elastic arm structure of the torsion lever effectively ensures that the bending lever is separated from the reset part in the functional module when it is close to the reset position, without affecting its reset. Since the two parts of the connection move in the same direction, only a small elastic deformation is required to compensate for their speed difference; ⑥ A buckle part is set in the middle of the torsion lever, which effectively limits the warping deformation of the torsion lever and improves the reliability of the mechanism action.

[0043] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it is apparent that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be regarded as illustrative rather than restrictive.

Claims

1. A switch panel with a double-lever switch travel amplification mechanism, characterized in that: The switch panel comprises: a button panel (1), a bending lever (2), a torsion lever (3), a functional module (4) and a bottom plate (5) which are arranged in sequence from top to bottom, wherein the torsion lever (3) is symmetrically arranged on both sides of the bottom plate (5), the functional module (4) is arranged on both sides of the bending lever (2), and the bending lever (2) is arranged at the center of the bottom plate (5); the button panel (1) is used to provide an operating force for the switch panel, the bending lever (2) and the torsion lever (3) form a double-lever mechanism, the bending lever (2) is used to drive the functional module (4) to complete a switching action, the reset member of the functional module (4) is reset by internal elastic force, and the switch panel is reset by elastic force through the elastic arm of the torsion lever (3).

2. The switch panel with a double-lever switch travel amplification mechanism according to claim 1, characterized in that: The bending lever (2) comprises a first shaft portion (21), a driving portion (22), a first driven portion (23) and a second driven portion (24) symmetrically arranged at two ends, and the two ends are connected via a pivot; the driving portion (22) is used to drive a reset member (41) arranged on the functional module (4), so that the functional module (4) completes a switch function action, and the bending lever (2) and the torque lever (3) are connected via a micro-elastic arm structure.

3. The switch panel with a double-lever switch travel amplification mechanism according to claim 2, characterized in that: The torsion lever (3) adopts a bending-torsion composite lever structure, and its two ends adopt a pivot structure. The torsion lever (3) is provided with a driving arm (32), a micro-elastic arm (321), a driven arm (33), an elastic arm (34), and a second shaft portion (35), wherein the driving arm (32), the driven arm (33), the elastic arm (34), and the second shaft portion (35) are all symmetrically arranged. The micro-elastic arm (321) is arranged on the driving arm (32). The driving arm (32) is used to drive the first driven portion (23) of the bending lever (2), so that the bending lever (2) rotates around the first shaft portion (21); under the action of the elastic force of the elastic arm (34), the bending lever (2) is driven by the driving arm (32) and the micro-elastic arm (321) to be in a reset state.

4. The switch panel with a double-lever switch travel amplification mechanism according to claim 3, characterized in that: The elastic arm (34) is arranged at a position close to the guide structure of the button plate (1) to prevent the button plate (1) from getting stuck during the resetting process and to always keep the first driven part (23) of the bending lever (2) pressed down to ensure that the resetting action is completed following the torsion lever (3).

5. The switch panel with a double-lever switch travel amplification mechanism according to claim 3, characterized in that: The button plate (1) is provided with a plurality of ribs (11); When the four corners or upper and lower edges of the button plate (1) are pressed, at least one pressing rib (11) abuts against the driven arm (33) of the torsion lever (3), causing the torsion lever (3) to rotate around the second shaft portion (35); When the middle position of the button plate (1) is pressed, at least one pressing rib (11) abuts against the second driven portion (24) of the bending lever (2), so that the driving portion (22) can drive the reset member (41).

6. The switch panel with a double-lever switch travel amplification mechanism according to claim 5, characterized in that: The elastic arm (34) of the torsion lever (3) acts through elastic force so that when the button plate (1) is not pressed, the button plate (1) is pushed to the highest position through the driven arm (33).

7. The switch panel with a double-lever switch travel amplification mechanism according to claim 1, characterized in that: The button plate (1) is provided with at least one driving rib.

8. The switch panel with a double-lever switch travel amplification mechanism according to claim 1, characterized in that: Buckles (13) are provided at the four corners of the button plate (1) for limiting the position of the button plate (1) and having a floating guide function.

9. The switch panel with a double-lever switch travel amplification mechanism according to claim 1, characterized in that: A buckle structure (51) is provided on the bottom plate (5), and the buckle structure (51) is used to limit the warping deformation of the torsion lever (3) through a buckle portion (36) provided in the middle of the torsion lever (3).

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