TWM610636U - Push-type sound and silence switching key switch - Google Patents

Abstract

The model discloses a push-type switch button switch with sound and silence, which comprises a base, an upper cover, a guide core, a sounding shrapnel, a silent shrapnel, a guide slot seat arranged on the base, a button whose upper part is located in the guide slot seat, The rotating shaft located between the button and the guide core and the elastic member arranged between the guide core and the rotating shaft; the guide slot seat is mainly surrounded by several guide blocks, between every two adjacent guide blocks A longitudinal sliding groove is formed between the upper end of the guide block, and a rotary guide inclined surface is formed at the upper end of the guide block; a limit guide block embedded in the longitudinal sliding groove is provided at the lower end of the rotating shaft, and a lower guide inclined surface is formed on the lower end surface of the limit guide block; A longitudinal guide slider embedded in the longitudinal chute is protrudingly provided on the side of the button, and an upper guide slope is formed on the upper end of the button; through a simple pressing operation, the free switching of the sound and the silent state can be realized, and two different types can be obtained. The pressing effect is convenient and quick to operate, which brings great convenience to the user.

Description

Push-type sound and silent switch key switch

The new model relates to the field of key switches, in particular to a push-type switchover key switch with sound and no sound.

At present, the key switches on the market are classified according to sound and silent, which can be divided into sound key switches and silent key switches. The sound key switches can give users a better feel and sound. However, the sound they emit will make the sound The occasion is noisy; the silent key switch does not make a sound, which can meet the needs of some users for pressing silently, but the silent key switch has a poor feel.

However, most of the existing key switches can only realize the function of sound or silent, and cannot freely switch between sound and silent according to the needs of the user, which brings inconvenience to the user.

Therefore, there are also key switches on the market that can switch between sound and silent, but they are all toggle-type key switches. By turning the handle left and right, the sound and silent switching can be realized. However, a key switch that uses a push-type structure to switch between sound and sound has not yet appeared on the market.

In view of the above-mentioned shortcomings, the purpose of the present invention is to provide a push-button switch with sound and silence, which can be switched freely between the sound state and the silent state of the key switch by a simple pressing operation, and two different pressing effects can be obtained. , The operation is convenient and fast, which brings great convenience to the user and satisfies More needs of users.

The technical scheme adopted by the new model to achieve the above purpose is:

A push-type switch between sound and sound, comprising a base and an upper cover arranged on the base, and is characterized in that it further comprises a guide core arranged on the base, and a guide core respectively arranged on the side of the guide core A sounding shrapnel and a silent shrapnel, a guide slot seat arranged on the base, a button arranged on the base and the upper part in the guide slot seat, arranged on the guide slot seat and located on the button and A rotating shaft between the guide cores and an elastic member arranged between the guide core and the rotating shaft, wherein at least one acting arm acting on the sounding shrapnel or the silent shrapnel is provided on the side of the guide core; the The guide groove seat is mainly surrounded by several guide blocks, and a longitudinal sliding groove is formed between every two adjacent guide blocks, and a rotary guide inclined surface is formed at the upper end of the guide block; the lower end of the rotating shaft is provided with an embedded A number of limit guide blocks are arranged in the longitudinal chute and correspond to the longitudinal chute one by one, and a lower guide slope that matches the rotation guide slope is formed on the lower end of the limit guide block; on the side of the button The upper protrusion is provided with a plurality of longitudinal guide sliders embedded in the longitudinal slide groove and arranged one-to-one corresponding to the longitudinal slide groove, and a plurality of upper guide slopes matching the lower guide slope are formed on the upper edge of the button.

The present invention is further improved. The button is mainly composed of a pressing part penetrating to the lower end surface of the base and an acting part arranged at the upper end of the pressing part, wherein the longitudinal guide sliding block is protruding from the acting part On the side; a number of V-shaped grooves are formed on the upper edge of the action part, and the upper guide slope is formed on the inner side wall of the V-shaped groove.

The present invention is further improved. The upper part of the rotating shaft is provided with an inserting post, and a guide hole for inserting the inserting post is formed upward at the lower end of the guide core; the elastic member is a return spring, and the return spring is sleeved on the inserting post Peripheral and located in the guide hole.

A further improvement of the present invention is that a number of limit bars are protrudingly provided on the outer side of the insertion column, and a number of limit slots extending to the lower end surface of the guide core and for the limit bars to be inserted are formed in the lower part of the guide hole.

The present invention is further improved. A central groove is provided in the guide groove seat, and the upper part of the button is located in the central groove.

The new model is further improved, and the guide block is in the shape of an arc.

The present invention is further improved. A rubber pad acting on the sounding shrapnel or the silent shrapnel is provided at the lower end of the acting arm.

The present invention is further improved. At least one limiting elastic piece for limiting the position of the action arm is provided on the base.

The present invention is further improved. The end of the action arm has an arc-shaped part, and the limiting elastic piece has a limiting part matching the arc-shaped part.

The present invention is further improved. A movable groove is formed on the base for the movement of the guide core and the action arm. The sound-producing shrapnel and the silent shrapnel are arranged at the bottom of the movable groove; at the same time, in the movable groove A slot is respectively formed on the two opposite inner walls, and both ends of the limiting elastic piece are inserted into the two slots.

The beneficial effect of the new model is that by adding the guide groove seat, the button and the rotation shaft, it is used as a pressing member for driving the guide core to rotate, and the user can drive the guide core to rotate as a whole through a simple pressing operation, thereby Drive the action arm to switch positions on the sounding shrapnel and the silent shrapnel, thereby realizing the free switching of the sound state and the silent state of the key switch, and obtaining two different pressing effects, which is convenient and fast to operate and is used by the user Bring great convenience and meet more needs of users.

The above is an overview of the technical solution of the present invention. The following is a further description of the present invention with reference to the drawings and specific implementations.

1: pedestal

11: active slot

12: Slot

2: upper cover

21: opening

3: Guide core

31: Acting arm

311: Arc

32: Pilot hole

321: limit slot

33: Rubber pad

4: Sounding shrapnel

41, 51: Upper arch

5: Silent shrapnel

6: Guide slot seat

60: Center slot

61: guide block

62: Longitudinal chute

611: Rotating Guide Slope

7: Button

71: Longitudinal guide slider

72: Upper guide slope

73: Press part

74: Action part

741: V-groove

8: shaft

81: limit guide block

811: Lower guide slope

82: Insert post

821: limit bar

9: Return spring

10: Limiting shrapnel

101: limit part

20: The first contact bubble point component

201: first side contact bubble point

202: The first contact bubble point

30: The second contact bubble point component

301: second side contact bubble point

302: The second contact bubble point

Figure 1 is a schematic diagram of the new explosive structure.

Figure 2 is a schematic diagram of the structure of the new key switch in the sound state.

Figure 3 is a cross-sectional schematic diagram of the new key switch in an audible state.

Figure 4 is a cross-sectional schematic diagram of the new key switch in a silent state.

Figure 5 is a schematic diagram of the base structure of the new model.

Figure 6 is a schematic diagram of the new shaft structure.

Figure 7 is a schematic diagram of the new button structure.

Figure 8 is a schematic diagram of the combination of the new button and the shaft.

Figure 9 is a schematic diagram of the bottom structure of the new guide core.

Figure 10 is a schematic diagram of the structure of the new button set at the bottom of the base.

Figure 11 is a schematic cross-sectional view of the new sound-producing shrapnel and silent shrapnel set on the base.

Figure 12 is another perspective view of the new base structure.

In order to further explain the technical means and effects of the present invention to achieve the predetermined purpose, the specific implementation of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

Please refer to Figures 1 to 4, this embodiment provides a push-type sound and silent switch key switch, including a base 1, an upper cover set on the base 1, a guide set on the base 1 Core 3, a sounding shrapnel 4 and a silent shrapnel 5 respectively arranged on the side of the guide core 3, a guide groove seat 6 arranged on the base 1, and a guide groove seat 6 arranged on the base 1 and the upper part is located in the guide groove A button 7 in the seat 6, a rotating shaft 8 arranged on the guide groove seat 6 and located between the button 7 and the guide core 3, and a rotating shaft 8 arranged on the guide An elastic member between the core 3 and the rotating shaft 8, wherein at least one acting arm 31 acting on the sounding elastic sheet 4 or the silent elastic sheet 5 is provided on the side of the guide core 3.

Specifically, the guiding groove seat 6 is mainly surrounded by several guiding blocks 61. Preferably, the guiding blocks 61 are arc-shaped, and a longitudinal sliding groove 62 is formed between every two adjacent guiding blocks 61 , At the upper end of the guide block 61 is formed a rotating guide inclined surface 611, as shown in Figure 5, the longitudinal sliding groove 62 is used as a slideway for the button 7 and the shaft 8 to move up and down, which is the distance between the button 7 and the shaft 8 Up and down movement provides vertical guidance. At the same time, there is a central groove 60 in the guide groove seat 6, and the upper part of the button 7 is located in the central groove 60.

Specifically, a number of limit guide blocks 81 embedded in the longitudinal chute 62 and arranged in one-to-one correspondence with the longitudinal chute 62 are provided at the lower end of the rotating shaft 8, and the lower end surface of the limit guide block 81 is formed with The lower guide slope 811 matched with the rotation guide slope 611, as shown in Figure 6, the longitudinal chute 62 is used as a slideway for the limit guide block 81 to move up and down, providing for the up and down movement of the limit guide block 81 Vertical guiding function.

Specifically, a number of longitudinal guide sliders 71 embedded in the longitudinal slide groove 62 and arranged in one-to-one correspondence with the longitudinal slide groove 62 are protrudingly provided on the side of the button 7, and the upper edge of the button 7 is formed with the The several upper guide slopes 72 matched with the lower guide slope 811, as shown in Figures 7 and 8, the longitudinal slide groove 62 serves as the slide way for the vertical guide slider 71 to move up and down, which is the length of the longitudinal guide slider 71 Up and down movement provides vertical guidance.

Specifically, as shown in Figures 7 and 10, the button 7 is mainly composed of a push portion 73 penetrating to the lower end surface of the base 1 and an action portion 74 provided at the upper end of the push portion 73, wherein, The longitudinal guide sliding block 71 is protrudingly provided on the side of the acting portion 74; a plurality of V-shaped grooves 741 are formed on the upper edge of the acting portion 74, and the upper guiding inclined surface 72 is formed on the inner side wall of the V-shaped groove 741.

Specifically, as shown in Figures 6 and 9, there is a pin 82 on the upper part of the rotating shaft 8, and a guide hole 32 for inserting the pin 82 is formed at the lower end of the guide core 3. In the process of moving up and down, the inserting post 82 provides a guiding function, so that the guide core 3 always moves in the vertical direction, thereby improving the stability and accuracy of the movement of the guide core 3. In this embodiment, as shown in Figure 3, the elastic member is a return spring 9, the return spring 9 is sleeved around the pin 82 and is located in the guide hole 32, and the return spring 9 serves as the guide The pressing and resetting of the core 3 provides a more accurate elastic reset force.

As shown in Figures 6 and 9, a number of limiting strips 821 are protrudingly provided on the outer side of the pin 82, and a lower end of the guide core 3 is formed at the lower part of the guide hole 32 for the limiting strip 821 to be clamped. Into a number of limit slots 321. Since the limit bar 821 of the inserting post 82 is locked into the limit slot 321 of the guide core 3, only longitudinal relative movement can occur between the guide core 3 and the rotating shaft 8, and in the transverse direction, the guide core There is no relative movement between 3 and the rotating shaft 8, thus, it can be ensured that when the rotating shaft 8 rotates, the guide core 3 will also rotate synchronously.

As shown in FIGS. 2 and 9, a rubber pad 33 for acting on the sounding shrapnel 4 or the silent shrapnel 5 is provided at the lower end of the acting arm 31. When the action arm 31 moves down with the guide core 3, the rubber pad 33 directly contacts the sound-producing elastic sheet 4 or the silent elastic sheet 5.

In this embodiment, the position change of the acting arm 31 is realized by the button 7. In order to improve the stability of the acting arm 31 after the position is changed, as shown in Figure 2, the base 1 is provided with a function for the acting arm 31 At least one limiting elastic piece 10 for limiting the position, preferably, the number of the action arm 31 in this embodiment is one, and accordingly, the number of the limiting elastic piece 10 is two. At the same time, the end of the acting arm 31 has an arc-shaped portion 311, and the limiting elastic piece 10 has a limiting portion 101 matching the arc-shaped portion 311.

As shown in Figure 2, when the key switch is in the sound state, the function The arc portion 311 of the arm 31 is locked into the limiting portion 101 of the left limiting elastic piece 10, and the limiting portion 101 restricts the action arm 31, which prevents the guide core 3 and the action arm 31 from shaking laterally. Phenomenon such as rotation or displacement; similarly, as shown in Figure 4, when the key switch is in a silent state, the arc portion 311 of the action arm 31 is locked into the limiting portion 101 of the right limiting spring 10, and the The limit part 101 limits the action arm 31 to prevent the guide core 3 and the action arm 31 from shaking, rotating or shifting laterally, thereby improving the stability of the overall structure of the key switch.

It should be noted here that when the position of the acting arm 31 is adjusted and converted, the button 7 is artificially acted on, and a force is applied to the button 7 to rotate the guide core 3, thereby realizing the position of the acting arm 31 Change. Therefore, through the action of manpower, before the arc-shaped portion 311 at the end of the acting arm 31 enters the limiting portion 101 of the limiting elastic piece 10, a force is applied to the limiting elastic piece 10, because the limiting elastic piece 10 has a certain degree of Due to the elasticity, the limit element elastic piece 10 will deform, so that the arc portion 311 at the end of the action arm 31 can smoothly switch positions until the arc portion 311 enters the limit portion 101 of the limit elastic piece 10.

As shown in Figures 2 and 5, a movable groove 11 is formed on the base 1 for the guide core 3 and the action arm 31 to move, and the sound-producing shrapnel 4 and the silent shrapnel 5 are arranged in the movable groove 11 At the same time, a slot 12 is respectively formed on the two opposite inner walls of the movable slot 11, and the two ends of the limiting elastic piece 10 are inserted into the two slots 12.

In the initial state, the upper guide inclined surface 72 on the action portion 74 of the button 7 is in contact with the lower guide inclined surface 811 on the limit guide block 81 of the rotating shaft 8. When the pressing portion 73 of the button 7 is pressed upward, the button 7 exerts an upward force on the rotating shaft 8 so that the button 7 and the rotating shaft 8 move upward along the longitudinal sliding groove 62 on the base 1 at the same time. At the same time, the return spring 9 inside the guide core 3 is compressed; when the rotating shaft 8 moves up to the lower guide slope 811 on the limit guide block 81 and the rotation guide slope of the guide slot 6 When the height 611 is the same, the rotating shaft 8 produces a rotating action under the reaction of the elastic restoring force of the return spring 9 in the guide core 3. During the rotation of the rotating shaft 8, the lower guide inclined surface 811 contacts the rotating guide inclined surface 611, and The rotation guide slope 611 provides a guiding function, so that the lower guide slope 811 slides and rotates along the rotation guide slope 611; when the pressing force on the button 7 disappears, the limit guide block 81 on the rotating shaft 8 falls into In the corresponding longitudinal chute 62, move down and reset to the initial state to complete one rotation of the rotating shaft 8, and correspondingly, the guide core 3 rotates along with the rotating shaft 8.

In this embodiment, preferably, as shown in Figure 5, the number of guide blocks 61 of the guide groove seat 6 is 4, and the number of the longitudinal slide grooves 62 corresponds to 4; then every time the button is pressed 7. The rotating shaft 8 drives the guide core 3 to rotate 90°.

In this embodiment, preferably, the number of the action arm 31 is one. As shown in Figure 2, the position of the action arm 31 must be changed, so as to realize the switch between the sound and the silence of the key switch. , The button 7 needs to be pressed twice, so that the rotating shaft 8 drives the guide core 3 to rotate twice, a total of 180°. Of course, the number of the action arms 31 can also be 2 or 3, etc. For example, when the number of the action arms 31 is 2, the two action arms 31 can be set at 90°. When switching, press The number of the button 7 can be changed accordingly.

In this embodiment, no matter whether one action arm 31 or two action arms 31 are selected, the rubber pad 33 at the lower end of the action arm 31 can be selected to have the same hardness, for example, 70 degrees.

In this embodiment, by pressing the button 7, the guide core 3 and the action arm 31 can be driven to rotate correspondingly, so that the position of the action arm 31 is changed, that is, the action arm 31 acts on the sounding shrapnel 4 Still the silent shrapnel 5 is switched. Specifically, when the acting arm 31 acts on the sounding shrapnel 4, it can achieve a pressing sound effect and obtain a good pressing feel; when the acting arm 31 acts on the silent shrapnel 5, it can achieve a silent pressing effect and obtain A certain pressing feel, as a result, Realize the free switching between sound and silent pressing, and obtain two different pressing effects, which brings great convenience to the user.

Specifically, there are two main factors for achieving both vocal and silent pressing effects:

(1) The arching height of the upper arch 41 of the sound-producing shrapnel 4 is greater than the arching height of the upper arch 51 of the silent shrapnel 5, as shown in FIG. 11. Specifically, the arching height of the upper arch 41 of the sound-producing shrapnel 4 is 0.17±0.03 mm, and the arching height of the upper arch 41 of the silent shrapnel 5 is 0.15±0.03 mm.

When the guide core 3 is pressed and moved downward, the action arm 31 directly acts on the upper arch (41, 51) of the sounding shrapnel 4 or the silent shrapnel 5. Regarding whether the acting arm 31 acts on the sounding shrapnel 4 or the silent shrapnel 5, the button 7 can be used to drive the guide core 3 to rotate to a certain angle, thereby changing the position of the acting arm 31, so that the acting arm 31 can make a sound. Switch between the shrapnel 4 and the silent shrapnel 5.

When the acting arm 31 is located above the upper arch 41 of the sound-producing elastic sheet 4, the guide core 3 is pressed downward, and the acting arm 31 moves downward. During the downward movement of the acting arm 31, the acting arm 31 The rubber pad 33 at the lower end contacts the upper arch 41 of the sound-producing shrapnel 4 and exerts a downward force on the upper arch 41, causing the upper arch 41 to deform and concave downwards, due to the arching of the upper arch 41 If the height is higher, the concave stroke of the upper arch portion 41 is longer; when the pressing on the guide core 3 is released, the force of the action arm 31 on the upper arch portion 41 of the sounding shrapnel 4 disappears, and the sounding shrapnel 4 Under the action of its own elastic restoring force, the upper arch portion 41 quickly rebounds and arches up and resets. Because the upper arch portion 41 is recessed for a longer stroke, it has a larger elastic potential energy, so that the upper arch portion 41 is fast It rebounds and resets and hits the rubber pad 33 at the lower end of the arm 31 to produce sound, thereby achieving an audible pressing effect and obtaining a good pressing feel; at the same time, the upper arch 41 of the sounding shrapnel 4 rebounds and resets to drive the effect The arm 31 is reset with the guide core 3.

When the guide core 3 is rotated by the button 7 to switch the action arm 31 above the upper arch 51 of the silent shrapnel 5, specifically, the button 7 is pressed twice in this embodiment, and the button is pressed once every time 7 drives the guide core 3 to rotate 90° for a total of 180°. In the same way, when the guide core 3 is pressed downward, the action arm 31 moves downward. During the downward movement of the action arm 31, the rubber pad 33 at the lower end of the action arm 31 contacts the upper arch 51 of the silent shrapnel 5 , And exert a downward force on the upper arch 51 to deform the upper arch 51 to be concave downward. Since the arch height of the upper arch 51 is lower, the concave stroke of the upper arch 51 is longer. Short; when the pressing on the guide core 3 is released, the force of the action arm 31 on the upper arch 51 of the silent shrapnel 5 disappears, and the upper arch 51 of the silent shrapnel 5 quickly under the action of its own elastic restoring force Backward arching and resetting, since the upper arching portion 51 is recessed for a short stroke, it has a small elastic potential energy. When the upper arching portion 51 rebounds quickly and upwardly arches and resets, it contacts the acting arm with a small force The rubber pad 33 at the lower end of 31 emits a weak sound that can hardly be heard by human ears, thereby achieving a silent pressing effect and obtaining a certain pressing feel; at the same time, the upper arch 51 of the silent shrapnel 5 rebounds and resets, driving the The action arm 31 is reset with the guide core 3.

Thus, by switching the position of the acting arm 31 by the button 7, free switching between audible and silent pressing can be realized, thus obtaining two different pressing effects.

(2) The contact bubble point drop under the sounding shrapnel 4 is greater than the contact bubble point drop under the silent shrapnel 5.

Specifically, as shown in Fig. 12, a first contact bubble point assembly 20 is provided under the sounding shrapnel 4, and the first contact bubble point assembly 20 is mainly composed of two second contact bubble point components disposed on both sides of the lower side of the sounding shrapnel 4. One side contact bubble point 201 and a first middle contact bubble point 202 disposed under the sounding shrapnel 4 and located between two first side contact bubble points 201, specifically, two first side contact bubble points 201 Is the same height and higher than the height of the first middle contact bubble point 202; at the same time, under the silent shrapnel 5 A second contact bubble point assembly 30 is provided on the other side. The second contact bubble point assembly 30 is mainly composed of two second side contact bubbles 301 arranged on both sides of the silent shrapnel 5, and two second side contact bubble points 301 arranged under the silent shrapnel 5 and located A second middle contact bubble point 302 between the two second side contact bubbles 301, specifically, the height of the two second side contact bubbles 301 is the same, and is higher than the height of the second middle contact bubble 302 high.

Specifically, the first contact bubble point assembly 20 and the second contact bubble point assembly 30 are both disposed on the base 1; at the same time, the first middle contact bubble point 202 and the second middle contact bubble point 302 are respectively It is composed of two semi-circular bubble points of equal height, as shown in Figure 12.

As shown in Figure 11, the height difference between the first side contact bubble point 201 and the first middle contact bubble point 202 is greater than the height of the second side contact bubble point 301 and the second middle contact bubble point 302 Poor, that is, the contact bubble point drop below the sounding shrapnel 4 is greater than the contact bubble point drop below the silent shrapnel 5. Specifically, the height difference between the first side contact bubble point 201 and the first middle contact bubble point 202 (the contact bubble point drop below the sounding shrapnel 4) is 0.04~0.06 mm, and the second side contact bubble point 301 is The height difference of the second contact bubble point 302 (the contact bubble point drop below the silent shrapnel 5) is 0.02~0.035mm.

When the acting arm 31 acts on the upper arch portion 41 of the sounding shrapnel 4, so that the upper arch portion 41 is deformed and recessed, both sides of the sounding shrapnel 4 are supported by two first side contact bubbles 201, and the The upper arch portion 41 is recessed until it contacts the first middle contact bubble point 202. Since the height difference between the first side contact bubble point 201 and the first middle contact bubble point 202 is relatively large, the upper arch portion 41 can Depressed longer stroke. Therefore, the elastic potential energy of the sounding elastic piece 4 can be further increased, so that the upper arch portion 41 hits the lower end of the acting arm 31 due to the rapid rebound and reset, and produces a greater sound, thereby achieving a better pressing and sounding effect.

In the same way, when the acting arm 31 acts on the upper arch 51 of the silent shrapnel 5 so that the upper arch 51 is deformed downward, the two sides of the silent shrapnel 5 contact the bubble point 301 from the two second sides. Support, and the upper arch 51 is recessed until it comes into contact with the second middle contact bubble point 302. Since the height difference between the second side contact bubble point 301 and the second middle contact bubble point 302 is small, the upper The arch portion 51 can be recessed for a short stroke, which is smaller than the stroke that the upper arch portion 41 can be recessed. Therefore, the elastic potential energy of the silent shrapnel 5 is further reduced, and the impact force of the upper arch 51 on the lower end of the action arm 31 is reduced, thereby further reducing the emitted sound and further achieving a silent effect.

Therefore, since the height difference between the first side contact bubble point 201 and the first middle contact bubble point 202 is greater than the height difference between the second side contact bubble point 301 and the second middle contact bubble point 302, the action arm 31. The difference between the sounding effect achieved by switching over the sounding shrapnel 4 and switching over the silent shrapnel 5 is more obvious. Specifically, the sound generated by the active arm 31 when switched to the upper part of the sound-producing shrapnel 4 is louder, and the sound when switched to the upper part of the silent shrapnel 5 is weaker (inaudible to human ears).

In this embodiment, the sound-producing elastic sheet 4 is a first metal elastic sheet, the first side contact bubble point 201 is the first conduction point A, and the first middle contact bubble point 202 is the first conduction point B. The first metal shrapnel, the first conduction point A, and the first conduction point B are combined to form a first conduction component; the silent shrapnel 5 is a second metal shrapnel, and the second side contact bubble 301 is a second conduction point A, The second middle contact bubble point 302 is the second conduction point B, and the second metal dome, the second conduction point A, and the second conduction point B are combined to form a second conduction component; therefore, the key switch of this embodiment is a light touch switch.

Specifically, the sound-producing shrapnel 4 (first metal shrapnel) and the silent shrapnel 5 (second metal shrapnel) are made of 301 stainless steel shrapnel. The first side contact bubble point 201 (first conduction point A), the first middle contact bubble point 202 (first conduction point B), and the second side contact bubble point 301 (second conduction point A) are the same as the second middle contact bubble point. Contact bubble point 302 (section The two conducting points B) are all silver-plated brass, and the four bubble points all extend out of the base 1 to form terminals (pins) to connect with the PCB board. At the same time, the first metal shrapnel and the second metal shrapnel are both pot pieces.

In this embodiment, the upper cover 2 is provided with an opening 21 for the upper end of the guide core 3 to pass through, so as to facilitate the pressing of the guide core 3.

When the guide core 3 is not pressed, the two first conduction points A are in contact with the lower edge of the first metal elastic piece, the first conduction point B is located below the upper arch 41 of the first metal elastic piece, and the first The conduction point B is separated from the upper arch 41 of the first metal dome; at the same time, the two second conduction points A are in contact with the lower edge of the second metal dome, and the second conduction point B is located on the second metal dome Below the arch 41, and the second conduction point B is separated from the upper arch 51 of the second metal dome; at this time, the key switch is in an off and non-conducting state, as shown in FIG. 3.

When the guide core 3 is pressed down, one of the first metal elastic piece and the second metal elastic piece is squeezed by the action arm 31, so that the upper arch (41, 51) is squeezed downwards. Deformation and depression are generated by pressing, so as to contact the first conduction point B (or the second conduction point B) to realize the signal conduction function, thereby realizing the conduction function of the key switch. When the pressing on the guide core 3 is released, due to the elastic restoring force of the first metal elastic piece (or the second metal elastic piece) and the action of the return spring 9, the upper arch (41, 51) rebounds, The upper arch (41, 51) is separated from the first conduction point B (or the second conduction point B) 4, and drives the guide core 3 to reset, and the key switch is turned off.

Of course, this embodiment can also adopt a moving-static plate conduction structure, a light conduction structure, a magnetic conduction structure, a Hall conduction structure, etc., to realize the conduction function of the key switch. For the specific structures of the moving and static plate conduction structure, light conduction structure, magnetic conduction structure, and Hall conduction structure, conventional structural designs in this field can be adopted.

Specifically, the conduction structure of the moving and static plates can refer to the application number: 201721440657.5 utility model patent. The light conducting structure can refer to the invention patent application number 201410536104.4. The magnetic conduction structure can refer to the utility model patent application number 201820231798.4. For the Hall conduction structure, please refer to the invention patent application No. 201811017870.4.

The above are only the preferred embodiments of the present invention and do not limit the technical scope of the present invention. Therefore, the same or similar technical features as the above-mentioned embodiments of the present invention are adopted, and other structures obtained are all in the present invention. Within the scope of protection.

1: pedestal

2: upper cover

21: opening

3: Guide core

31: Acting arm

4: Sounding shrapnel

5: Silent shrapnel

6: Guide slot seat

7: Button

8: shaft

9: Return spring

10: Limiting shrapnel

Claims (10)

A push-type switch between sound and sound, which includes a base and an upper cover arranged on the base, and is characterized in that it further comprises a guide core arranged on the base and respectively arranged on the sides of the guide core A sounding shrapnel and a silent shrapnel, a guide slot seat arranged on the base, a button arranged on the base and the upper part in the guide slot seat, arranged on the guide slot seat and located on the button A rotating shaft between the guide core and an elastic member arranged between the guide core and the rotating shaft, wherein at least one acting arm acting on the sounding shrapnel or the silent shrapnel is provided on the side of the guide core; The guide groove seat is mainly surrounded by several guide blocks, and a longitudinal sliding groove is formed between every two adjacent guide blocks, and a rotary guide inclined surface is formed at the upper end of the guide block; an embedded guide block is provided at the lower end of the rotating shaft. A number of limit guide blocks are arranged in the longitudinal chute and correspond to the longitudinal chute one-to-one, and a lower guide slope matching the rotation guide slope is formed on the lower end of the limit guide block; on the side of the button A plurality of longitudinal guide sliders embedded in the longitudinal chute and arranged in one-to-one correspondence with the longitudinal chute are protrudingly provided on the side, and a plurality of upper guide slopes matching the lower guide slope are formed on the upper edge of the button. According to claim 1, the push button switch with sound and silent, wherein the button is mainly composed of a push part penetrating to the lower end surface of the base and an action part arranged at the upper end of the push part, wherein, The longitudinal guide sliding block is protrudingly arranged on the side of the acting part; a plurality of V-shaped grooves are formed on the upper edge of the acting part, and the upper guiding inclined surface is formed on the inner side wall of the V-shaped groove. The push-type sound and silent switch key switch according to claim 1, wherein the upper part of the rotating shaft has an insert post, and a guide hole for the insert post is formed upward at the lower end of the guide core; the elastic member is a reset A spring, the return spring is sleeved on the periphery of the inserting column and is located in the guide hole. According to claim 3, the push button switch with sound and silent switch, wherein a plurality of limit bars are protruding from the outer side of the inserting column, and a lower end of the guide core is formed at the lower part of the guide hole for the limit. Several limit slots into which the strip is stuck. According to claim 1, the push-type switchover key switch with sound and sound, wherein the guide groove seat has a central groove, and the upper part of the button is located in the central groove. According to claim 1, the push-type sound and silent switch key switch, wherein the guide block is in the shape of an arc. According to the push-type sound and silent switch key switch according to claim 1, a rubber pad acting on the sounding shrapnel or the silent shrapnel is provided at the lower end of the acting arm. According to claim 1, the push-type sound and silent switch key switch, wherein the base is provided with at least one limit elastic piece for limiting the position of the acting arm. According to claim 8 of the push-type switch button switch with sound and sound, wherein the end of the acting arm has an arc-shaped part, and the limiting elastic piece has a limiting part matching the arc-shaped part. According to claim 8, the push button switch with sound and silence, wherein a movable groove for the guide core and the action arm is formed on the base, and the sound-producing shrapnel and the silent shrapnel are arranged in the living room. At the same time, a slot is respectively formed on the two opposite inner walls of the movable slot, and the two ends of the limiting elastic piece are inserted into the two slots.

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