CN216871803U

CN216871803U - Press type sound and soundless switching mechanism for key switch

Info

Publication number: CN216871803U
Application number: CN202122808998.6U
Authority: CN
Inventors: 吴福喜; 胡远锋
Original assignee: Dongguan Kaihua Electronics Co Ltd
Current assignee: Dongguan Kaihua Electronics Co Ltd
Priority date: 2021-09-14
Filing date: 2021-11-16
Publication date: 2022-07-01
Anticipated expiration: 2031-11-16
Also published as: WO2023087865A1; CN115810501A; TWM638200U

Abstract

The utility model discloses a press type sound and silence switching mechanism for a key switch, which comprises a base and a press piece arranged on the base, wherein the press piece is provided with a press lug, a guide inclined plane is formed on the base, the base is provided with an elastic piece, one end of the elastic piece is positioned above the guide inclined plane, the base is provided with a press switching assembly, and the press switching assembly is used for driving one end of the elastic piece to be switched between the position below the press lug and the position far away from the position below the press lug; the pressing switching component comprises a pressing locking structure and a sound and soundless switching piece connected with the pressing locking structure, and one end of the elastic piece extends to the sound and soundless switching piece; through pressing the locking structure, control to press the switching component and adjust the position of elastic component one end for elastic component one end is being in and is pressing the lug below and keeping away from and press switching between the lug below, in order to realize pressing the switching that voiced and press soundless, satisfies user's different demands, improves the convenience of use, promotes user experience.

Description

Press type sound and soundless switching mechanism for key switch

Technical Field

The utility model relates to the field of key switches, in particular to a pressing type sound and soundless switching mechanism for a key switch.

Background

At present, the key switches in the market are classified according to sound and silence, and can be divided into a sound key switch and a silence key switch, wherein the sound key switch can enable a user to obtain better hand feeling and sound feeling, but the sound generated by the sound key switch can make the user be noisy in certain occasions; the silent key switch does not emit sound, so that the requirement of partial users for pressing the silent key switch can be met, but the hand feeling of the silent key switch is poor. The existing key switch can only realize the function of sound or silence, and can not freely switch sound and silence according to the needs of users, so that inconvenience is brought to the users, different requirements of the users can not be met at the same time, and the user experience is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages, an object of the present invention is to provide a push-type sound-to-silence switching mechanism for a key switch, which can switch between a push-to-sound function and a push-to-silence function, meet different requirements of users, improve convenience of use, and improve user experience.

The technical scheme adopted by the utility model to achieve the aim is as follows:

a button switch is with pressing the switching mechanism of the sound and noiseless, including a base, and a pressing member that is set up on base and moved up and down, there is a lug pressing on the pressing member, there is a guide inclined plane on the base, there is an elastic member on the base, one end of the elastic member locates above the guide inclined plane, characterized by that, there is a pressing and switching assembly on the base, the pressing and switching assembly is used for driving one end of the elastic member to switch between locating under the lug pressing and keeping away from and pressing under the lug pressing; the pressing switching component comprises a pressing locking structure and a sound and soundless switching piece connected with the pressing locking structure, wherein one end of the elastic piece extends to the sound and soundless switching piece.

As a further improvement of the present invention, a groove is formed in the soundless switching member, a switching slope is formed in the groove, and one end of the elastic member extends into the groove.

As a further improvement of the present invention, the switching slope is inclined downward from the pressing projection side toward the pressing lock structure side.

As a further improvement of the present invention, the pressing and locking structure comprises a pressing seat disposed on the base, a first return spring disposed between the pressing seat and the base, and a latch hook having one end thereof limited on the base and the other end thereof movable on the pressing seat, wherein the switching member is disposed on a side of the pressing seat.

As a further improvement of the utility model, a left sliding chute, a right sliding chute and a locking groove formed between the left sliding chute and the right sliding chute are respectively formed on the side edge of the press seat, a left guide inclined plane and a first longitudinal guide groove are sequentially formed in the left sliding chute from bottom to top, a second longitudinal guide groove and a right guide inclined plane are sequentially formed in the right sliding chute from top to bottom, the locking groove is positioned at the lower part of the first longitudinal guide groove and the second longitudinal guide groove, and the depths of the first longitudinal guide groove, the locking groove and the second longitudinal guide groove are sequentially deepened.

As a further improvement of the utility model, a longitudinal movable groove for the pressing seat to be embedded and to move up and down is formed on the base, a positioning column is formed in the longitudinal movable groove, a limiting groove is formed upwards at the bottom of the pressing seat, the upper end of the first return spring is embedded in the limiting groove, and the lower end of the first return spring is sleeved on the periphery of the positioning column; the lower end of the lock hook is clamped at the bottom in the longitudinal movable groove.

As a further improvement of the present invention, the elastic member is a torsion spring, and the torsion spring includes a spring body, a resilient arm connected to one end of the spring body, and a connecting portion connected to the other end of the spring body, wherein the spring body is disposed in the base, the end of the resilient arm extends into the slot, and the connecting portion is inserted into the base.

As a further improvement of the utility model, an embedded groove for embedding the spring body is formed on the base, and an opening for the elastic arm to penetrate out is formed on the side edge of the embedded groove.

As a further improvement of the utility model, a limit block is arranged on the base.

As a further improvement of the utility model, a second return spring is arranged between the bottom of the pressing piece and the base.

The utility model has the beneficial effects that: the pressing locking structure in the pressing switching assembly locks and unlocks the sound-to-sound switching piece, so that the switching of the two functions of pressing sound and pressing soundless is realized, different requirements of users are met, the use convenience is improved, and the user experience is improved.

The above is an overview of the technical solution of the present invention, and the present invention is further explained with reference to the accompanying drawings and the detailed description.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic structural diagram of a portion of the push switch assembly of the present invention;

FIG. 4 is another schematic structural diagram of a portion of the push switch assembly of the present invention;

FIG. 5 is a schematic view of a base according to the present invention;

FIG. 6 is a schematic view of the combination of the pressing member, the elastic member and the pressing switch assembly in the silent state of the present invention;

FIG. 7 is a schematic view of the combination of the pressing base and the locking hook of the present invention in a silent state;

FIG. 8 is a schematic view of the combination of the pressing member, the elastic member and the pressing switch assembly in the sounding state according to the present invention;

FIG. 9 is a schematic view of the structure of the present invention in which the pressing base is combined with the latch hook in the audible state;

FIG. 10 is a schematic diagram of the external structure of the key switch in the silent state according to the present invention;

fig. 11 is an external structural diagram of the push switch in the audio state according to the present invention.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purposes, the following detailed description of the embodiments of the present invention is provided with the accompanying drawings and the preferred embodiments.

Referring to fig. 1 and 2, an embodiment of the present invention provides a pressing type switching mechanism for a key switch, including a base 1 and a pressing member 2 disposed on the base 1 and moving up and down, wherein the pressing member 2 is provided with a pressing protrusion 21, the base 1 is formed with a guiding inclined plane 11, the base 1 is provided with an elastic member 3, one end of the elastic member 3 is located above the guiding inclined plane 11, the base 1 is provided with a pressing switching assembly 4, and the pressing switching assembly 4 is used for driving one end of the elastic member 3 to switch between being located below the pressing protrusion 21 and being away from the pressing protrusion 21; the push switch assembly 4 comprises a push locking structure 41 and a soundless switching piece 42 connected to the push locking structure 41, wherein one end of the elastic piece 3 extends to the soundless switching piece 42; the position of one end of the elastic piece is adjusted by controlling the pressing switching component through pressing the locking structure, so that one end of the elastic piece is switched between the position below the pressing lug and the position far away from the position below the pressing lug, and switching between pressing with sound and pressing without sound is realized.

In the embodiment, the sound-to-soundless switching piece 42 acts on one end of the elastic piece 3, so that one end of the elastic piece 3 is switched between being positioned below the pressing lug 21 and being far away from the pressing lug 21, and the pressing locking structure 41 is used for locking and unlocking the sound-to-soundless switching piece 42, so that the switching of the two functions of pressing sound and pressing soundless is realized, and different requirements of users are met.

Specifically, when the entire push switch unit 4 is in the non-push initial state, the soundless switch member 42 is not locked by the push lock structure 41, and at this time, the soundless switch member 42 acts on one end of the elastic member 3, so that one end of the elastic member 3 moves away from the push projection 21, and one end of the elastic member 3 moves away from under the push projection 21, that is, the elastic member 3 is elastically deformed, and at this time, the push member 2 is pushed downward, and the push member 2 does not act on the elastic member 3, and no sound is emitted, thereby realizing the push soundless function. When applied to a key switch, the key switch is in a silent state.

When the push switch unit 4 is pushed down to be in a pushed state, the sound-and-soundless switching member 42 moves down and is locked by the push lock structure 41, at this time, the acting force of the sound-and-soundless switching member 42 on one end of the elastic member 3 is reduced or eliminated, one end of the elastic member 3 is restored by its own elastic restoring force and moves toward the lower side of the push protrusion 21 to be finally positioned below the push protrusion 21, at this time, the push member 2 is pushed down, and the push member 2 acts on the elastic member 3 to generate sound, so that the push sound generating function is realized. When applied to a key switch, the key switch is in a sound state.

The specific sound production principle is as follows: in the process of pressing the pressing piece 2 downwards, the pressing lug 21 on the pressing piece 2 moves downwards, the pressing lug 21 acts on one end of the elastic piece 3 downwards, one end of the elastic piece 3 moves downwards, when one end of the elastic piece 3 moves downwards to touch the guide inclined plane 11 on the base 1, the elastic piece slides outwards along the guide inclined plane 11 until one end of the elastic piece 3 is separated from the pressing lug 21, and at the moment, a hand feels that the pressing force is obviously reduced, so that the hand feeling is generated; at the same time, the pressing projection 21 is resiliently restored, and the sound is generated by striking on the base 1, the pressing member 2 and/or the push-switch assembly 4.

As for the specific structure of the soundless switching member 42, as shown in fig. 4, in this embodiment, a slot 421 is formed on the soundless switching member 42, a switching slope 422 is formed on the slot 421, and one end of the elastic member 3 extends into the slot 421. Meanwhile, the switching slope 422 is inclined downward from the pressing projection 21 side toward the pressing lock structure 41 side. When the push switch assembly 4 is in the non-push initial state as a whole, as shown in fig. 6, one end of the elastic member 3 is located in the slot 421; when the push switch assembly 4 is pushed down to be in a pressed state, one end of the elastic member 3 is restored along the switch slope 422 until moving to below the push protrusion 21, as shown in fig. 8. When the switch unit 4 is pushed to return to the non-pushed initial state, the switching slope 422 of the soundless switching member 42 acts on one end of the elastic member 3, so that one end of the elastic member 3 moves along the switching slope 422 into the slot 421. Due to the special structural design of the sound and soundless switching piece 42, the elastic piece 3 is accurately acted, so that the switching between sound pressing and soundless pressing is realized.

In the present embodiment, as shown in fig. 3 and fig. 6, the pressing locking structure 41 includes a pressing base 411 disposed on the base 1, a first return spring 412 disposed between the pressing base 411 and the base 1, and a locking hook 413 having one end limited on the base 1 and the other end movable on the pressing base 411, wherein the silent switch 42 is disposed on the side of the pressing base 411. When the pressing seat 411 is pressed downwards, the locking hook 413 acts on the pressing seat 411 to hook the pressing seat 411, so that the pressing seat 411 can lock the sound and soundless switching piece 42 downwards; when the latch hook 413 releases the acting force on the pressing seat 411, the first return spring 412 provides an elastic restoring force for the upward movement return of the pressing seat 411.

To the concrete structure of the pressing base 411, as shown in fig. 3, a left sliding groove 4111, a right sliding groove 4112, and a locking groove 4113 formed between the left sliding groove 4111 and the right sliding groove 4112 are respectively formed on the side edge of the pressing base 411, a left guiding inclined plane 41111 and a first longitudinal guiding groove 41112 are sequentially formed in the left sliding groove 4111 from bottom to top, a second longitudinal guiding groove 41121 and a right guiding inclined plane 41122 are sequentially formed in the right sliding groove 4112 from top to bottom, the locking groove 4113 is located below the first longitudinal guiding groove 41112 and the second longitudinal guiding groove 41121, and the depths of the first longitudinal guiding groove 41112, the locking groove 4113, and the second longitudinal guiding groove 41121 are sequentially deepened. When the pressing base 411 is pressed downwards, the pressing base 411 acts on the locking hook 413 downwards, so that the upper end of the locking hook 413 is forced to slide in the left sliding groove 4111, specifically, slide into the first longitudinal guide groove 41112 from the left guide inclined surface 41111, and in the process, the first return spring 412 is compressed; then, the pressing of the pressing base 411 is released, the pressing base 411 moves upward by a stroke under the elastic restoring force of the first restoring spring 412, so that the lock hook 413 slides into the lock groove 4113 from the first longitudinal guide groove 41112, as shown in fig. 9, the locking of the pressing base 411 is achieved, and accordingly, the silent switch 42 is locked, so that the force applied to one end of the elastic member 3 is released, and the elastic member 3 is reset to move below the pressing projection 21. When the pressing seat 411 is pressed down again, the pressing seat 411 acts on the locking hook 413, so that the locking hook 413 is forced to slide into the right sliding groove 4112 from the locking groove 4113; then, the pressing of the pressing base 411 is released, the pressing base 411 moves upward under the elastic restoring force of the first return spring 412, finally, the locking hook 413 slides downward from the second longitudinal guiding groove 41121 and slides out from the right guiding inclined surface 41122, finally, the locking hook 413 releases the locking of the pressing base 411, as shown in fig. 7, accordingly, the audible and silent switching member 42 moves upward to act on one end of the elastic member 3, and one end of the elastic member 3 is pushed outward and away from the lower side of the pressing projection 21.

By the special structural design who presses left spout 4111 on the seat 411, right spout 4112 and locking groove 4113, cooperate with latch hook 413, realize the locking and release locking function to pressing seat 411 and voiced silent switch piece 42, whole structure action is accurate quick, does benefit to the accurate control to elastic component 3, realizes that elastic component 3 one end is in and presses the lug 21 below and keep away from and press accurate the switching between the lug 21 below to the realization is pressed voiced and silent function's switching.

For the installation of the pressing locking structure 41, as shown in fig. 5, in this embodiment, a longitudinal moving groove 12 for the pressing base 411 to be inserted and to move up and down is formed on the base 1, a positioning column 13 is formed in the longitudinal moving groove 12, a limiting groove 14 is formed upward at the bottom of the pressing base 411, the upper end of the first return spring 412 is inserted into the limiting groove 14, and the lower end is sleeved on the periphery of the positioning column 13, so that the first return spring 412 can be elastically deformed accurately to provide an elastic restoring force for the pressing base 411; the lower end of the locking hook 413 is clamped at the bottom in the longitudinal movable groove 12, so that the locking hook 413 cannot move, and only when the pressing seat 411 moves up and down, the upper end of the locking hook 413 can slide in the left sliding groove 4111, the right sliding groove 4112 and the locking groove 4113 of the pressing seat 411 to realize locking and releasing locking actions on the pressing seat 411, so that the locking and releasing locking functions on the soundless switching piece 42 are realized.

In the present embodiment, as shown in fig. 1 and fig. 2, the elastic member 3 is a torsion spring 3', the torsion spring 3' includes a spring body 31, a resilient arm 32 connected to one end of the spring body 31, and a connecting portion 33 connected to the other end of the spring body 31, wherein the spring body 31 is disposed in the base 1, an end of the resilient arm 32 extends into the slot 421, and the connecting portion 33 is inserted into the base 1.

As shown in fig. 1 and 5, in the installation and limiting manner of the torsion spring 3', an insertion groove 15 for inserting the spring body 31 is formed on the base 1, and an opening 16 for penetrating the elastic arm 32 is formed on the side of the insertion groove 15.

In order to limit the position of the elastic arm 32 when the pressing member 2 is not pressed, as shown in fig. 1 and 5, the base 1 of the present embodiment is provided with a stopper 17, and when the pressing member 2 is not pressed, the elastic arm 32 is limited by the stopper 17, thereby preventing the elastic arm 32 from being widely flicked. Meanwhile, the elastic arm 32 of the torsion spring 3' can be more accurately knocked on the base 1, the pressing piece 2 and/or the push switch component 4 to generate sound. Meanwhile, when the elastic arm 32 of the torsion spring 3' rebounds and resets, the limiting block 7 can be knocked to produce sound.

In order to facilitate the pressing of the pressing member 2, a second return spring 5 is disposed between the bottom of the pressing member 2 and the base 1, and the second return spring 5 provides an elastic restoring force for the pressing member 2.

In the present embodiment, the pressing member 2 is a core, as shown in fig. 1, the pressing protrusion 21 is disposed on a side of the core, and an end of the pressing protrusion 21 has an inclined surface 211.

When the key switch is in a sound state, in the process of pressing the guide core downwards, the pressing lug 21 on the guide core moves downwards, the pressing lug 21 presses the elastic arm 32 of the torsion spring 3' downwards, the elastic arm 32 moves downwards, when the elastic arm 32 moves downwards to touch the guide inclined plane 11 on the base 1, the elastic arm slides outwards along the guide inclined plane 11 until the elastic arm 32 is separated from the pressing lug 21, and at the moment, a hand feels that the pressing force is obviously reduced, so that the hand feeling is generated; at the same time, the pressing cam 21 is resiliently restored, and the sound is generated by striking on the base 1, the pressing member 2 and/or the push switch assembly 4.

The pressing type switching mechanism with sound and silence in this embodiment is applied to a key switch, as shown in fig. 10 and 11, an upper cover 6 is added, and the conventional moving and static sheet mechanical conduction mode or magnetic conduction mode is adopted in the key switch, so as to realize the conduction and disconnection functions.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by using the same or similar technical features as the above-described embodiments of the present invention are within the protection scope of the present invention.

Claims

1. A button switch is with pressing the switching mechanism of the sound and noiseless, including a base, and a pressing member that is set up on base and moved up and down, there is a lug pressing on the pressing member, there is a guide inclined plane on the base, there is an elastic member on the base, one end of the elastic member locates above the guide inclined plane, characterized by that, there is a pressing and switching assembly on the base, the pressing and switching assembly is used for driving one end of the elastic member to switch between locating under the lug pressing and keeping away from and pressing under the lug pressing; the pressing switching component comprises a pressing locking structure and a sound and soundless switching piece connected with the pressing locking structure, wherein one end of the elastic piece extends to the sound and soundless switching piece.

2. The push-type acoustic-silent switching mechanism for a push button switch according to claim 1, wherein a slot is formed in said acoustic-silent switching member, a switching slope is formed in said slot, and one end of said elastic member extends into said slot.

3. The push-button switch of claim 2, wherein the switch slope is inclined downward from the push-button protrusion side toward the push-button lock structure side.

4. The push-button switch of claim 1, wherein the push-button locking structure comprises a push button seat disposed on the base, a first return spring disposed between the push button seat and the base, and a latch hook having one end thereof fixed to the base and the other end thereof movable to the push button seat, wherein the push button locking structure is disposed on a side of the push button seat.

5. The push-button switch with sound and silence function as claimed in claim 4, wherein a left sliding groove, a right sliding groove, and a locking groove formed between the left sliding groove and the right sliding groove are formed on the side of the push button, a left guiding inclined plane and a first longitudinal guiding groove are sequentially formed in the left sliding groove from bottom to top, a second longitudinal guiding groove and a right guiding inclined plane are sequentially formed in the right sliding groove from top to bottom, the locking groove is located under the first longitudinal guiding groove and the second longitudinal guiding groove, and the depths of the first longitudinal guiding groove, the locking groove and the second longitudinal guiding groove are sequentially increased.

6. The push-button type acoustic and silent switching mechanism as claimed in claim 4, wherein said base has a longitudinal slot for said push-button seat to be inserted into and move up and down, a positioning post is formed in said longitudinal slot, a limiting slot is formed upward at the bottom of said push-button seat, the upper end of said first return spring is inserted into said limiting slot, and the lower end of said first return spring is sleeved on the periphery of said positioning post; the lower end of the lock hook is clamped at the bottom in the longitudinal movable groove.

7. The push-button type audible and silent switching mechanism according to any one of claims 2 to 6, wherein said elastic member is a torsion spring, said torsion spring comprises a spring body, a resilient arm connected to one end of said spring body, and a connecting portion connected to the other end of said spring body, wherein said spring body is disposed in said base, said end of said resilient arm extends into said slot, and said connecting portion is inserted into said base.

8. The push-button type switching mechanism having sound and silence as claimed in claim 7, wherein an insertion groove for inserting the spring body is formed on the base, and an opening for passing the elastic arm is formed on a side of the insertion groove.

9. The push-button type acoustic/silent switching mechanism as claimed in any one of claims 1 to 6, wherein a stopper is provided on said base.

10. The push button switch with audible and silent switching mechanism according to any one of claims 1 to 6, wherein a second return spring is provided between the bottom of said pressing member and the base.