CN216871814U

CN216871814U - Rotary switching type sound and soundless mechanism for key switch

Info

Publication number: CN216871814U
Application number: CN202122965468.2U
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: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-07-01
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a rotary switching type sound and silence mechanism for a key switch, which comprises a base, a pressing piece movably arranged on the base, a sliding piece movably connected to the pressing piece and an elastic movable contact piece arranged on the side edge of the sliding piece, wherein a rotary switching piece extending to the side edge of the sliding piece is rotatably arranged on the pressing piece, and a connecting rod capable of synchronously linking the sliding piece and the pressing piece is formed on the rotary switching piece. The rotary switching type sound and soundless mechanism for the key switch can realize switching between sound pressing and soundless pressing, meets different requirements of users, and is convenient to switch.

Description

Rotary switching type sound and soundless mechanism for key switch

Technical Field

The utility model relates to the field of key switches, in particular to a rotary switching type sound-free 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-mentioned shortcomings, the present invention provides a rotary switching type sound-free mechanism for a push switch, which can switch between sound pressing and sound pressing, meet different requirements of users, and is convenient for switching operation.

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

a rotary switching type sound and silence mechanism for key switch is composed of a base, a pressing part movably arranged on said base, a slide part movably connected to said pressing part, and an elastic movable contact piece arranged at the side edge of slide part.

As a further improvement of the present invention, the rotary switching element includes an installation shaft installed on the pressing element, a rotating head connected to an upper end of the installation shaft and exposed outside the pressing element, and the linkage rod connected to a lower end of the installation shaft, wherein the linkage rod includes a support shaft connected to a lower end of the installation shaft, and a hook connected to a lower end of the support shaft and used for hooking the sliding element.

As a further improvement of the present invention, the supporting shaft mainly comprises a transverse acting portion connected to the lower end of the mounting shaft and a longitudinal supporting portion connected between the transverse acting portion and the hook, wherein the pressing member is provided with a limiting protrusion for limiting the transverse acting portion.

As a further improvement of the present invention, the pressing member is formed with a relief groove for the lateral acting portion to swing, and the limiting protrusion is formed in the relief groove.

As a further improvement of the utility model, the mounting shaft and the linkage rod are both elastic pieces.

As a further improvement of the utility model, at least one acting elastic arm is formed on the side edge of the elastic movable contact piece close to the sliding piece, and at least one bulge corresponding to the acting elastic arm in a one-to-one mode is formed on the side edge of the sliding piece close to the elastic movable contact piece.

As a further improvement of the present invention, the slider is formed with at least one slide hook groove, and the lower portion of the pressing member is formed with at least one slide hook arm hooked into the slide hook groove.

As a further improvement of the utility model, a positioning insertion shaft is arranged at the lower part of the pressing piece in a downward extending way, and the sliding hook arm is formed outside the positioning insertion shaft; a central hole for movably inserting the positioning insertion shaft and the sliding hook arm is formed on the sliding piece.

As a further improvement of the utility model, a positioning column is formed on the base, a positioning insertion hole is formed in the positioning column, and the positioning insertion shaft is movably inserted into the positioning insertion hole; a return spring is arranged between the pressing piece and the base, the upper end of the return spring is sleeved on the periphery of the positioning insertion shaft, and the lower end of the return spring is sleeved on the periphery of the positioning column.

As a further improvement of the present invention, at least one driving protrusion is formed on the side of the pressing member, and at least one driving engaging groove for the driving protrusion to engage is formed on the sliding member.

As a further improvement of the present invention, a guiding protrusion is formed on at least two outer side edges of the sliding member opposite to each other, and a guiding sliding groove into which the guiding protrusion is inserted is formed on two inner side walls of the base opposite to each other.

The utility model has the beneficial effects that: the rotary type switching piece with the linkage rod is additionally arranged between the sliding piece and the pressing piece, so that the sliding piece and the pressing piece are switched between synchronous linkage and synchronous linkage release, switching between pressing sound and pressing sound is realized, different requirements of users are met, and switching operation is convenient.

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 an exploded view of the present invention;

FIG. 2 is a schematic view of the combination of the slider and the pressing member according to the present invention;

fig. 3 is a schematic structural view of a rotary switch according to the present invention;

FIG. 4 is a schematic view of the structure of the slider combined with the elastic moving contact piece in the present invention;

FIG. 5 is a partial schematic structural view of the present invention;

fig. 6 is an external structural diagram of the key switch of 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 rotary switching type sound and silence mechanism for a key switch, including a base 1, a pressing member 2 movably disposed on the base 1, a sliding member 3 movably connected to the pressing member 2, and an elastic moving contact piece 4 disposed on a side edge of the sliding member 3, wherein a rotary switching member 5 extending to a side edge of the sliding member 3 is rotatably disposed on the pressing member 2, and a linkage rod 51 capable of synchronously linking the sliding member 3 and the pressing member 2 is formed on the rotary switching member 5.

By rotating the rotating switch 5, the linking rod 51 of the rotating switch 5 can be switched between the synchronous linking of the slider 3 and the pusher 2 and the release of the synchronous linking of the slider 3 and the pusher 2. Specifically, when the linkage rod 51 synchronously links the sliding part 3 and the pressing part 2, the pressing part 2 moves up and down, relative motion cannot occur between the sliding part 3 and the pressing part 2, and the sliding part 3 cannot knock the pressing part 2 to generate sound, so that the pressing soundless effect is achieved; when the linkage rod 51 releases the synchronous linkage of the sliding part 3 and the pressing part 2, the pressing part 2 moves up and down, the sliding part 3 and the pressing part 2 move relatively, and the sliding part 3 strikes the pressing part 2 to generate sound, so that the pressing sound effect is achieved. Therefore, because the rotary type switching piece 5 with the linkage rod 51 is additionally arranged between the sliding piece 3 and the pressing piece 2, the sliding piece 3 and the pressing piece 2 are switched between synchronous linkage and synchronous linkage release, so that switching between pressing sound and pressing soundless sound is realized, different requirements of users are met, and the switching operation is convenient.

Regardless of whether the sliding member 3 and the pressing member 2 are in the synchronous linkage state or the synchronous linkage released state, the up-and-down movement of the pressing member 2 drives the sliding member 3 to move up and down, and only the problem of synchronization exists.

When the sliding member 3 is moved upward by the pressing member 2, the sliding member 3 will contact the elastic moving contact piece 4 on the side edge, as shown in fig. 4 and 5. When the sliding piece 3 and the pressing piece 2 are in a state of releasing synchronous linkage, the sliding piece 3 is driven by the pressing piece 2 to move upwards, the sliding piece 3 meets the elastic movable contact piece 4 and applies outward acting force to the elastic movable contact piece 4, so that the elastic movable contact piece 4 is elastically deformed; then, at the moment that the pressing piece 2 drives the sliding piece 3 to move upwards synchronously, the elastic restoring force of the elastic movable contact piece 4 acts on the sliding piece 3, so that the sliding piece 3 has an upward instant acting force, the sliding piece 3 moves upwards relative to the pressing piece 2, and the sliding piece 3 knocks the pressing piece 2 to generate sound, so that the purpose of pressing and generating sound is achieved. Accordingly, when the slider 3 and the pressing member 2 are in a synchronous linkage state, since the relative movement between the two does not occur, even if the elastic movable contact piece 4 has an instant acting force on the slider 3, the knocking sound is not generated.

In the present embodiment, as shown in fig. 2 and 3, the rotary switch 5 includes a mounting shaft 52 mounted on the pressing member 2, a rotating head 53 connected to an upper end of the mounting shaft 52 and exposed outside the pressing member 2, and the linkage rod 51 connected to a lower end of the mounting shaft 52, wherein the linkage rod 51 includes a supporting shaft 511 connected to a lower end of the mounting shaft 52, and a hook 512 connected to a lower end of the supporting shaft 511 and used for hooking the sliding member 3. When the switching between sound pressing and soundless pressing is required, the rotating head 53 is manually rotated, specifically, rotated by 90 °. When the supporting shaft 511 of the linkage 51 is supported between the pressing piece 2 and the sliding piece 3, as shown in fig. 2, the pressing piece 2 is pressed downwards, and the sliding piece 3 synchronously moves downwards due to the supporting shaft 511; when the pressing member 2 moves upwards, the slide member 3 moves upwards synchronously due to the hook 512, so that the two members do not move relatively to realize the pressing silent function. When the rotating head 53 is manually rotated, the supporting shaft 511 of the linkage rod 51 is rotated away from between the pressing member 2 and the sliding member 3, and the hook 512 is rotated away from the sliding member 3, the sliding member 3 and the pressing member 2 are switched from the synchronous linkage state to the asynchronous linkage state, and the sliding member 3 is driven to move up and down by the up-and-down movement of the pressing member 2, but the movement of the two is not synchronous, so that the function of pressing sound can be realized.

Specifically, the supporting shaft 511 mainly comprises a transverse acting portion 5111 connected to the lower end of the mounting shaft 52 and a longitudinal supporting portion 5112 connected between the transverse acting portion 5111 and the hook 512, wherein the pressing member 2 is provided with a limiting protrusion 20 for limiting the transverse acting portion 5111. The arrangement of the limiting bulge 20 limits the transverse acting part 5111, which can effectively prevent the rotary switching piece 5 from rotating when not receiving acting force, thereby ensuring more accurate switching action between sound pressing and soundless pressing. When the rotary switch 5 is manually rotated, the lateral acting portion 5111 acts on the limiting protrusion 20 by rotating only by applying an acting force to the rotating head 53, and can go over the limiting protrusion 20 to rotate outward, thereby realizing a rotation switching function.

In a specific structure, as shown in fig. 2, a relief groove 21 for swinging the lateral acting portion 5111 is formed in the pressing member 2, and the limiting protrusion 20 is formed in the relief groove 21. The escape groove 21 provides an escape space for the rotation of the lateral acting portion 5111.

Of course, it is also possible to rotate the rotating switch 5 only by a strong rotation by increasing a frictional force on the contact surface of the mounting shaft 52 and the pressing member 2, and the rotating switch 5 does not rotate when no force is applied.

In this embodiment, the mounting shaft 52 and the linkage 51 are both elastic members. Specifically, the elastic part can be a snap spring. The elastic piece has elastic characteristics, is convenient to be matched with the limiting bulge 20, realizes the limiting function and is convenient to rotate and operate.

With regard to the structure of the sliding member 3 and the elastic movable contact piece 4, as shown in fig. 4 and 5, in this embodiment, at least one acting spring arm 41 is formed on the side of the elastic movable contact piece 4 close to the sliding member 3, and at least one protrusion 31 corresponding to the acting spring arm 41 in a one-to-one manner is formed on the side of the sliding member 3 close to the elastic movable contact piece 4. Preferably, the number of the acting spring arms 41 and the projections 31 is 2. When slider 3 reciprocates along with pressing piece 2, by slider 3 accurate effect bullet arm 41 for the action takes place more accurately, does benefit to the realization of vocal function.

In the connection relationship between the slider 3 and the pressing member 2, in the present embodiment, at least one sliding hook groove 32 is formed in the slider 3, and at least one sliding hook arm 22 hooked into the sliding hook groove 32 is formed in the lower portion of the pressing member 2. Since the pressing member 2 is hooked into the sliding hook groove 32 through the sliding hook arm 22 to achieve connection with the sliding member 3, when the rotary switch 5 is not operated, the pressing member 2 moves downward just after the pressing member 2 is pressed downward, so that the sliding hook arm 22 slides downward along the sliding hook groove 32, and the sliding member 3 does not move downward, and when the pressing member 2 moves downward to the upper portion to contact with the upper end face of the sliding member 3, the sliding member 3 is driven to move downward together. When the pressing member 2 moves upward, the sliding hook arm 22 slides upward along the sliding hook groove 32 without the sliding member 3 moving upward, and when the pressing member 2 moves upward and the sliding hook arm 22 contacts the inner wall of the sliding hook groove 32, the sliding member 3 is driven to move upward together. By the process, the asynchronous linkage action of the sliding piece 3 and the pressing piece 2 is realized, so that the sliding piece 3 is matched with the elastic movable contact piece 4, and the function of sounding when the sliding piece 3 impacts the pressing piece 2 is realized.

In this embodiment, as shown in fig. 2, a positioning insertion shaft 23 is extended downward from the lower portion of the pressing member 2, and the sliding hook arm 22 is formed outside the positioning insertion shaft 23; a center hole 33 into which the positioning insertion shaft 23 and the slide hook arm 22 are movably inserted is formed in the slider 3, as shown in fig. 4. Meanwhile, as shown in fig. 1, a positioning column 11 is formed on the base 1, a positioning insertion hole 111 is formed in the positioning column 11, and the positioning insertion shaft 23 is movably inserted into the positioning insertion hole 111; a return spring 6 is disposed between the pressing member 2 and the base 1, an upper end of the return spring 6 is sleeved on the periphery of the positioning insertion shaft 111, and a lower end thereof is sleeved on the periphery of the positioning column 11. When the pressing piece 2 is pressed downward, the return spring 6 is compressed, and when the pressing piece 2 is released from being pressed, the elastic restoring force of the return spring 6 drives the pressing piece 2 to move upward and return.

In order to facilitate the pressing element 2 to drive the sliding element 3 to move down, as shown in fig. 2, in this embodiment, at least one driving protrusion 24 is formed on the side of the pressing element 2, and at least one driving engaging slot 34 for the driving protrusion 24 to engage is formed on the sliding element 3. When the pressing part 2 moves downwards relative to the sliding part 3 to drive the convex block 24 to be clamped into the driving clamping groove 34, the pressing part 3 can be driven to move downwards, and the driving convex block 24 is matched with the driving clamping groove 34, so that the pressing part 2 is favorable for driving the sliding part 3 to stably vertically move downwards.

In order to allow the sliding member 3 to move up and down smoothly in the base 1, in this embodiment, a guiding protrusion 35 is formed on at least two opposite outer side edges of the sliding member 3, and a guiding sliding groove 12 into which the guiding protrusion 35 is inserted is formed on each of two opposite inner side walls of the base 1.

When the switching type silent acoustic mechanism provided by the present embodiment is applied to a push switch, the upper cover 7 may be added to the base 1, as shown in fig. 6. For the conducting structure of the key switch, a moving and static sheet conducting structure in the existing key switch can be adopted, the elastic moving contact sheet 4 can be used as a moving sheet, and as shown in fig. 5, the elastic moving contact sheet 4 and the static sheet 8 are combined to form the moving and static sheet conducting structure.

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 rotary switching type sound and silence mechanism for key switch is composed of a base, a pressing part movably arranged on said base, a slide part movably connected to said pressing part, and an elastic movable contact piece arranged at the side edge of slide part.

2. The rotary switching type audible and silent mechanism for a push button switch according to claim 1, wherein said rotary switching member comprises a mounting shaft mounted on the pressing member, a rotary head connected to an upper end of the mounting shaft and exposed from the pressing member, and said linkage connected to a lower end of the mounting shaft, wherein the linkage comprises a supporting shaft connected to a lower end of the mounting shaft, and a hook connected to a lower end of the supporting shaft and used for hooking the sliding member.

3. The rotary switching type audible and silent mechanism for a push button switch according to claim 2, wherein said supporting shaft is mainly composed of a lateral acting portion connected to the lower end of the mounting shaft and a longitudinal supporting portion connected between the lateral acting portion and the hook, wherein a limit protrusion for limiting the lateral acting portion is provided on the pressing member.

4. The rotary switching type audible and silent mechanism for a push switch according to claim 3, wherein said pressing member is formed with a relief groove for allowing said lateral acting portion to swing, and said stopper projection is formed in said relief groove.

5. The rotary switching type audible and silent mechanism for a key switch according to claim 3, wherein said mounting shaft and said linkage are both elastic members.

6. A rotary switch type audible and silent mechanism for a push button switch according to any one of claims 1 to 5, wherein at least one action spring arm is formed on the side of said movable elastic contact piece adjacent to the slider, and at least one projection corresponding to the action spring arm in one-to-one correspondence is formed on the side of said slider adjacent to the movable elastic contact piece.

7. The rotary switching type audible and silent mechanism for a push button switch according to any one of claims 1 to 5, wherein said slider is formed with at least one slide hook groove, and said pressing member is formed at its lower portion with at least one slide hook arm hooking into said slide hook groove.

8. A rotation switching type audible and silent mechanism for a push button switch according to claim 7, wherein a positioning insertion shaft is provided extending downward from a lower portion of said pressing member, and said slide hook arm is formed outside said positioning insertion shaft; and a central hole for movably inserting the positioning insertion shaft and the sliding hook arm is formed on the sliding piece.

9. The rotary switching type audible and silent mechanism for a push button switch according to claim 8, wherein a positioning post is formed on said base, a positioning insertion hole is formed in said positioning post, and said positioning insertion shaft is movably inserted into said positioning insertion hole; a reset spring is arranged between the pressing piece and the base, the upper end of the reset spring is sleeved on the periphery of the positioning insertion shaft, and the lower end of the reset spring is sleeved on the periphery of the positioning column.

10. The rotary switching type audible and silent mechanism for a push button switch according to any one of claims 1 to 5, wherein at least one driving protrusion is formed on the side of said pressing member, and at least one driving engaging groove for engaging with said driving protrusion is formed on said sliding member.

11. The rotary switching type audible and silent mechanism for a push button switch according to any one of claims 1 to 5, wherein a guide projection is formed on at least two outer side edges of said slider opposite to each other, and a guide groove into which said guide projection is fitted is formed on two inner side walls of said base opposite to each other.