CN216871798U - Rotary switching type sound and soundless mechanism for key switch - Google Patents

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 component extending to the sliding piece is rotatably arranged on the pressing piece, the rotary switching component comprises a lower pressing piece acting on the sliding piece, at least one upper lifting part acting on the sliding piece is formed on the pressing piece, and the sliding piece and the pressing piece can be synchronously linked by combining the lower pressing piece and the upper lifting part. The rotary switching type sound and soundless mechanism for the key switch provided by the utility model can realize switching between sound pressing and soundless pressing, meets different requirements of users, and is convenient to switch and operate.

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 audible and silent 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 a key switch 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.

As a further improvement of the present invention, the rotary switching assembly includes a rotating shaft mounted on the pressing member, and the pressing member disposed on the rotating shaft, wherein at least one pressing block is formed on the pressing member, and at least one supporting step corresponding to the pressing block is formed on the sliding member.

As a further improvement of the present invention, a lower guide slope is formed at one side of the bottom of the lower press block, and an upper guide slope corresponding to the lower guide slope is formed at one side of the upper portion of the support step.

As a further improvement of the utility model, the lower pressing piece comprises a shaft sleeve sleeved on the periphery of the rotating shaft and the lower pressing block formed on the outer side edge of the shaft sleeve.

As a further improvement of the utility model, at least one upper limiting groove is formed at the upper part of the shaft sleeve, and at least one upper limiting block clamped in the upper limiting groove is formed on the rotating shaft; at least one lower limiting groove is formed at the lower part of the shaft sleeve, and at least one lower limiting block clamped in the lower limiting groove is formed on the rotating shaft.

As a further improvement of the utility model, a movable groove for the rotation of the lower pressing piece is formed on the lower end face of the pressing piece, at least two limiting bulges are formed in the movable groove, and at least one limiting clamping groove for the clamping of the limiting bulges is formed on the lower pressing piece.

As a further improvement of the utility model, two limit lugs positioned on the side edges of the lower pressing block are convexly arranged in the movable groove.

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

As a further improvement of the present invention, the slide hook arm is formed outside the rotating shaft, and a center hole into which the rotating shaft and the slide hook arm are movably inserted is formed in the slider.

As a further improvement of the utility model, a positioning column is formed on the base, a positioning jack is formed in the positioning column, and the rotating shaft is movably inserted into the positioning jack; 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 rotating shaft, and the lower end of the return spring is sleeved on the periphery of the positioning column.

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, 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 switching component with the lower pressing piece is additionally arranged between the sliding piece and the pressing piece and is combined with the pressing piece with the upper lifting part, so that the sliding piece and the pressing piece are switched between synchronous linkage and synchronous linkage release, switching between pressing sound and pressing soundless 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 rotary switch assembly, the sliding member and the pressing member of the present invention;

FIG. 3 is a schematic view of the rotary switch assembly of the present invention engaged with a sliding member;

FIG. 4 is a schematic structural diagram of the rotary switching assembly of the present invention;

FIG. 5 is a schematic view of the structure of the hold-down member of the present invention;

FIG. 6 is a schematic bottom view of the pressing member of the present invention;

FIG. 7 is a schematic view of the structure of the slider combined with the elastic moving contact piece in the present invention;

FIG. 8 is a top view of the slide and hold down in combination with the audible depression of the present invention;

FIG. 9 is a bottom view of the combination of the pressing member, the slider and the pressing member in a state of pressing the sound according to the present invention;

FIG. 10 is a top view of the slide in combination with the hold down in the depressed silent state of the present invention;

FIG. 11 is a bottom view of the combination of the pressing member, the slider and the pressing member in the soundless pressing state according to the present invention;

FIG. 12 is a partial schematic view of the present invention

Fig. 13 is an external structural diagram of the push 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-less 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 assembly 5 extending to the sliding member 3 is rotatably disposed on the pressing member 2, the rotary switching assembly 5 includes a lower pressing member 51 acting on the sliding member 3, at least one upper lifting portion 21 acting on the sliding member 3 is formed on the pressing member 2, and the lower pressing member 51 and the upper lifting portion 21 are combined to synchronously move the sliding member 3 and the pressing member 2.

By rotating the rotary switching assembly 5, the lower pressing member 51 of the rotary switching assembly 5 can be switched between the lower pressing slider 3 and the lower pressing slider 3, when the lower pressing member 51 presses the slider 3, the lower pressing member 51 and the lifting part 21 are combined to act so that the slider 3 does not move relative to the pressing member 2, namely, the slider 3 and the pressing member 2 can be synchronously linked, and when the lower pressing member 51 releases the pressing of the slider 3, the slider 3 and the pressing member 2 can be synchronously linked, so that the synchronous linkage between the slider 3 and the pressing member 2 and the synchronous linkage between the slider 3 and the pressing member 2 can be released by rotating the rotary switching assembly 5. Specifically, when the lower pressing piece 51 is combined with the uplifting part 21 to synchronously link the sliding piece 3 and the pressing piece 2, the pressing piece 2 moves up and down, relative motion cannot occur between the sliding piece 3 and the pressing piece 2, and the sliding piece 3 cannot knock the pressing piece 2 to generate sound, so that the pressing soundless effect is achieved; when the lower pressing piece 51 releases the pressing of the sliding piece 3, the synchronous linkage between the sliding piece 3 and the pressing piece 2 is released, the pressing piece 2 moves up and down, the sliding piece 3 and the pressing piece 2 move relatively, and the sliding piece 3 strikes the pressing piece 2 to generate sound, so that the pressing sound effect is achieved. Therefore, the rotary switching component 5 with the pressing piece 51 is additionally arranged between the slider 3 and the pressing piece 2, so that the slider 3 and the pressing piece 2 are switched between synchronous linkage and synchronous linkage release, the 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 slider 3 and the pressing member 2 are in the synchronized state or the unlocked state, the up-and-down movement of the pressing member 2 drives the slider 3 to move up and down due to the provision of the lifting portion 21, which only causes a problem of synchronization.

When the sliding part 3 is driven by the pressing part 2 to move upwards, the sliding part 3 touches the elastic movable contact piece 4 on the side edge, as shown in fig. 7. 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 uplifting part 21 of 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. 4, the rotary switching assembly 5 includes a rotating shaft 52 installed on the pressing member 2, and the pressing member 51 disposed on the rotating shaft 52, wherein at least one pressing piece 511 is formed on the pressing member 51, and at least one supporting step 31 corresponding to the pressing piece 511 is formed on the sliding member 3, as shown in fig. 3. By rotating the rotating shaft 52, the pressing member 51 can rotate along with the rotation, when the pressing member 51 rotates until the pressing block 511 is located on the supporting step 31, as shown in fig. 10 and 11, the pressing member 2 is pressed downward, the rotary switching assembly 5 moves downward as a whole, i.e., the pressing member 511 directly acts on the supporting step 31 to apply an acting force to the supporting step 31, i.e., the pressing member 51 presses the slider 3 downward, and at the same time, the slider 3 does not move relative to the pressing member 2 regardless of whether the pressing member 2 moves upward or downward in combination with the action of the lifting portion 21, i.e., the slider 3 and the pressing member 2 can be synchronously interlocked to realize the silent pressing function. When the pressing member 51 rotates until the pressing block 511 leaves the supporting step 31, as shown in fig. 8 and 9, the pressing member 2 is pressed downward, the entire rotary switching assembly 5 moves downward, but the pressing block 511 does not act on the supporting step 31, that is, the pressing member 51 releases the pressing of the slider 3, and the slider 3 moves relative to the pressing member 2 regardless of whether the pressing member 2 moves upward or downward, so that the slider 3 and the pressing member 2 are released from synchronous linkage, and the pressing sound function is realized. Therefore, by the press-down block 511 in combination with the support step 31, quick and accurate switching of the press-on sound function and the press-on soundless function is facilitated.

In order to more smoothly move the lower pressing block 511 to the upper side of the supporting step 31 when the rotary shaft 52 of the rotary switching assembly 5 is rotated, as shown in fig. 3, a lower guide inclined surface 5111 is formed at the bottom side of the lower pressing block 511, and an upper guide inclined surface 311 corresponding to the lower guide inclined surface 5111 is formed at the upper side of the supporting step 31. The combination of the upper guide inclined surface 311 and the lower guide inclined surface 5111 provides a guiding function for the position movement of the lower pressing block 511, so that the lower pressing block 511 can move onto the supporting step 31 more smoothly and move away from the supporting step 31 more smoothly, thereby facilitating the rapid and accurate switching between the pressing sound function and the pressing sound-less function.

As for the specific structure of the lower pressing member 51, as shown in fig. 4, the lower pressing member 51 includes a sleeve 512 sleeved on the periphery of the rotating shaft 52, and the lower pressing block 511 formed on the outer side edge of the sleeve 512. When the rotary switching assembly 5 needs to be rotated, the rotating shaft 52 is directly rotated, so that the shaft sleeve 512 and the lower pressing block 511 can be driven to synchronously rotate.

As for the connection between the shaft sleeve 512 and the rotating shaft 52, as shown in fig. 4 and 5, in this embodiment, at least one upper limiting groove 5121 is formed at the upper part of the shaft sleeve 512, and at least one upper limiting block 521 clamped into the upper limiting groove 5121 is formed on the rotating shaft 52; at least one lower stopper groove 5122 is formed at the lower portion of the shaft sleeve 512, and at least one lower stopper 522 that is caught in the lower stopper groove 5122 is formed at the rotation shaft 52. Preferably, there are two upper limiting grooves 5121 and two upper limiting blocks 521, respectively, and the two upper limiting grooves and the two upper limiting blocks are oppositely disposed; the lower limit groove 5122 and the lower limit block 522 are two, respectively, and are disposed oppositely. The upper limit groove 5121 and the lower limit groove 5122 on the shaft sleeve 512 and the upper limit block 521 and the lower limit block 522 on the rotating shaft 52 are combined, so that the shaft sleeve 512 is firmly clamped on the rotating shaft 52 at two positions, namely the upper position and the lower position, and the rotating shaft 52 and the shaft sleeve 512 rotate synchronously.

After the pressing member 51 is rotated to the position, in order to limit the position, as shown in fig. 5, 6 and 9, in the present embodiment, a movable groove 22 for the rotation of the pressing member 51 is formed on the lower end surface of the pressing member 2, at least two limiting protrusions 23 are formed in the movable groove 22, and at least one limiting groove 5112 for the limiting protrusions 23 to be inserted is formed on the pressing block 511. Preferably, the number of the limiting protrusions 23 is four, and the number of the limiting clamping grooves 5112 is two. As shown in fig. 9, when the pressing member 51 rotates until the pressing block 511 leaves the supporting step 31, the two limiting protrusions 23 disposed opposite to each other are respectively engaged with the two limiting grooves 5112, so as to limit the pressing member 51. As shown in fig. 11, when the pressing member 51 rotates until the pressing block 511 is located on the supporting step 31, the two other limiting protrusions 23 are oppositely arranged and clamped into the two limiting clamping grooves 5112 one by one, so as to limit the pressing member 51. Therefore, the limiting function after the pressing piece 51 rotates to the position is realized, the phenomenon that the pressing piece 51 rotates excessively is prevented, and the accuracy of pressing sound and pressing soundless operation is improved.

Meanwhile, two limiting lugs 24 positioned on the side of the lower pressing block 511 are convexly arranged in the movable groove 22. The two limit projections 24 limit the rotation direction of the pressing member 51, so that the rotation shaft 52 can rotate only in one direction when switched. Specifically, as shown in fig. 9, when the pressing state is changed from the sound-on state to the sound-off state, as shown in fig. 11, the pressing state can be changed only clockwise; and when the device is rotated from the pressing silent state to the pressing sound state, the device can only rotate anticlockwise. As for the angle of rotation, the rotation may be set to 90 °.

As shown in fig. 2 and 6, in the present embodiment, at least one sliding hook groove 32 is formed in the slider 3, and the raised portion 21 is a sliding hook arm 21' formed at the lower portion of the pressing member 2 and hooked into the sliding hook groove 32. Since the pressing member 2 is hooked into the sliding hook groove 32 through the sliding hook arm 21 'to achieve connection with the sliding member 3, when the pressing member 2 is just pressed down when the pressing member 51 of the rotary switching assembly 5 does not act on the sliding member 3, the pressing member 2 moves down, so that the sliding hook arm 21' slides down along the sliding hook groove 32, and the sliding member 3 does not move down, and when the pressing member 2 moves down to the upper portion to contact with the upper end face of the sliding member 3, the sliding member 3 is driven to move down together. When the pressing member 2 moves upward, the sliding hook arm 21 'slides upward along the sliding hook groove 32 without moving the sliding member 3 upward, and when the pressing member 2 moves upward and the sliding hook arm 21' contacts the upper inner wall of the sliding hook groove 32, the sliding member 3 is moved 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 the present embodiment, the slide hook arm 21 'is formed outside the rotating shaft 52, and a center hole 30 into which the rotating shaft 52 and the slide hook arm 21' are movably inserted is formed in the slider 3, as shown in fig. 2 and 3. Meanwhile, a positioning column 11 is formed on the base 1, a positioning insertion hole 12 is formed in the positioning column 11, and the rotating shaft 52 is movably inserted into the positioning insertion hole 12; 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 rotating shaft 52, and a lower end thereof is sleeved on the periphery of the positioning post 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.

With regard to the structure of the sliding member 3 and the elastic movable contact piece 4, as shown in fig. 7, 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 33 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 order to facilitate the pressing element 2 to drive the sliding element 3 to move downward, as shown in fig. 2, in this embodiment, at least one driving protrusion 25 is formed on the side edge of the pressing element 2, and at least one driving engaging groove 34 for the driving protrusion 25 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 25 to be clamped into the driving clamping groove 34, the pressing part 3 can be driven to move downwards, and the driving convex block 25 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 13 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 sound and no sound mechanism provided by the present embodiment is applied to a key switch, the upper cover 7 may be added to the base 1, and as shown in fig. 13, the rotating shaft 52 extends to the outside of the pressing member 2 and the upper cover 7, so as to facilitate the rotating operation. 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. 12, 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 (13)

1. A rotary switching type sound and silence mechanism for a key switch 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.

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 rotary shaft mounted on the pressing member, and said pressing member disposed on the rotary shaft, wherein at least one pressing piece is formed on the pressing member, and at least one supporting step corresponding to the pressing piece is formed on said sliding member.

3. The rotary switching type audible and silent mechanism for a push button switch according to claim 2, wherein a lower guide slope is formed at a side of a bottom of said lower push block, and an upper guide slope corresponding to said lower guide slope is formed at a side of an upper portion of said supporting step.

4. The rotary switching type audible and silent mechanism for a push button switch according to claim 2, wherein said pressing member comprises a sleeve fitted around the periphery of the rotary shaft and said pressing piece formed on the outer side edge of the sleeve.

5. The rotary switching type audible and silent mechanism for a push button switch according to claim 4, wherein at least one upper limit groove is formed at an upper portion of said boss, and at least one upper limit block which is caught in said upper limit groove is formed at said rotary shaft; at least one lower limiting groove is formed at the lower part of the shaft sleeve, and at least one lower limiting block clamped in the lower limiting groove is formed on the rotating shaft.

6. The rotary switching type audible and silent mechanism for a push button switch according to claim 4, wherein a movable groove for the rotation of the push button is formed on the lower end surface of the push button, at least two limit protrusions are formed in the movable groove, and at least one limit slot for the limit protrusion to be inserted into is formed on the push button.

7. The rotary switchable acoustic and silent mechanism for a push-button switch according to claim 6, wherein two limit protrusions are provided in said movable groove in a protruding manner on the side of the lower press block.

8. The rotary switching type audible and silent mechanism for a push button switch according to claim 2, wherein said slider is formed with at least one slide hook groove, and said raised portion is a slide hook arm formed at a lower portion of the pressing member and hooked into the slide hook groove.

9. The rotary switching type audible and silent mechanism for push button switch according to claim 8, wherein said slide hook arm is formed outside said rotary shaft, and a center hole into which said rotary shaft and said slide hook arm are movably inserted is formed in said slider.

10. The rotary switchable acoustic and silent mechanism for a push-button switch according to claim 9, wherein a positioning post is formed on said base, a positioning insertion hole is formed in said positioning post, and said rotary shaft is movably inserted into said 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 rotating shaft, and the lower end of the return spring is sleeved on the periphery of the positioning column.

11. The rotary switch type audible and silent mechanism for push-button switch according to any of claims 1 to 7, 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.

12. The rotary switching type audible and silent mechanism for a push button switch according to any one of claims 1 to 7, 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.

13. The rotary switching type audible and silent mechanism for a push button switch according to any one of claims 1 to 7, 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.

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