key switch

Abstract

The utility model discloses a key switch, including seat body, button and compression spring, the button is movably arranged in the seat body, the compression spring is arranged between the button with the seat body and provides a make the button one end elastic force of stretching out the seat body outside, the seat body includes base and upper cover, the upper cover is clampedly connected on the base, the upper side of upper cover is equipped with the aperture of the communication inside and outside, the button is stretched and is exposed the upper cover through the aperture, the inside wall upper edge of base is equipped with one of positioning convex and positioning concave, the inside wall lower edge of upper cover is equipped with the other of positioning convex and positioning concave, and the positioning convex is clamped in the positioning concave, the utility model discloses key switch has the advantages of convenient, fast, cooperation is more stable, and the concentricity is high.

Description

Technical Field

[0001] This utility model relates to a keyboard, and more particularly to a key switch. Background Technology

[0002] Existing keyboard switches generally consist of a base, a button, and a spring. When the switch is operated, pressing the button with a finger causes it to move downwards relative to the base, triggering an electrical component on the base and activating the switch. After activation, the button springs back up to the top of the base, resetting the switch. To facilitate the installation of the button and spring into the base, existing bases are typically designed with a detachable top cover and base. However, due to the small size of these keyboard switches, it is difficult for workers to align the top cover and base during assembly. This makes assembly inconvenient, and the fit between the top cover and base is not stable enough, easily leading to misalignment and affecting the sensing effect of the internal magnetic shaft and electrical component. Utility Model Content

[0003] The purpose of this invention is to provide a push-button switch that is easy and quick to assemble, has a more stable fit, and a high degree of concentricity.

[0004] To achieve the above objectives, the push-button switch provided by this utility model includes a base, a button, and a compression spring. The button is movably disposed within the base, and the compression spring is disposed between the button and the base, providing an elastic force that causes one end of the button to extend out of the base. The base includes a base and a top cover, the top cover being snapped onto the base. The top cover has an opening communicating with the inside and outside, and the button extends through the opening and out of the top cover. The upper edge of the inner sidewall of the base has one of a positioning protrusion and a positioning recess; the lower edge of the inner sidewall of the top cover has the other of the positioning protrusion and positioning recess, and the positioning protrusion engages with the positioning recess.

[0005] Compared with existing technologies, this utility model provides one of a positioning protrusion and a positioning recess on the upper edge of the inner sidewall of the base, and the other of the same positioning protrusion and positioning recess on the lower edge of the inner sidewall of the top cover. During assembly, the positioning protrusion engages with the positioning recess, allowing the top cover and base to align quickly and effectively, ensuring their concentricity and reducing assembly time for workers, making assembly more convenient and efficient. Simultaneously, the engagement of the positioning protrusion and positioning recess prevents displacement between the top cover and the base, resulting in a more stable fit. This greatly satisfies the assembly requirements of the magnetic shaft and electrical components of the push-button switch, ensuring the sensing effect of the electrical components.

[0006] Preferably, the push-button switch further includes a retaining spring, which has a first retaining position and a second retaining position. A protrusion is provided on one side of the button, the protrusion elastically engaging with the retaining spring and sliding between the first and second retaining positions. By providing a retaining spring and the first and second retaining positions, and utilizing the engagement of the protrusion with the retaining spring, the button can produce two distinct tactile feedback when pressed, thus improving the tactile feel of the push-button switch.

[0007] Specifically, the retaining ring includes a positioning element and symmetrically arranged elastic arms. The middle portions of the two elastic arms are bent and protruded towards each other, thereby forming a narrow channel between the two elastic arms. The upper side of the channel forms the first retaining position, and the lower side forms the second retaining position.

[0008] Specifically, the two opposite sidewalls of the protrusion are provided with arc-shaped bosses. These arc-shaped bosses slide against the inner sidewall of the elastic arm, and the width between the two arc-shaped bosses is greater than the width of the channel. By setting the arc-shaped bosses to slide in cooperation with the elastic arm, the retaining spring can support the button using its own elastic force, and can also slide from the first locking position to the second locking position when the button is pressed, thereby achieving a tactile feedback.

[0009] Preferably, the inner wall of the base is provided with a guide groove, and the outer wall of the button is provided with a guide rail, the guide rail being slidably disposed in the guide groove. The cooperation between the guide groove and the guide rail allows for smoother sliding between the button and the base, preventing the button from wobbling left or right and improving the accuracy of the button's up-and-down sliding.

[0010] Preferably, the button has two opposite outer side walls with buffer members, and the upper and lower ends of the buffer members have elastic buffer heads. A symmetrical limiting block protrudes from the outer side wall of the button, forming a groove between the two limiting blocks, and the buffer member is engaged in the groove. The buffer members reduce the impact noise between the button and the base when the button slides up and down, thereby improving the quietness of the button switch.

[0011] Specifically, the push-button switch further includes a light guide post, the base is provided with a mounting groove, the light guide post is disposed in the mounting groove and its surface is exposed in the mounting groove.

[0012] Preferably, the push button switch further includes a magnetic shaft, and the inner center of the button is provided with a sleeve, the magnetic shaft is fixed in the sleeve, and the inner center of the base is provided with a sleeve, the sleeve being slidably fitted in the sleeve.

[0013] Preferably, the upper cover has elastic buckles on opposite sides, and the base has locking blocks on opposite sides, with the buckles elastically engaging with the locking blocks. The engagement of the elastic buckles and locking blocks allows for quick connection and assembly of the upper cover and the base, improving the ease of assembly and thus increasing production efficiency.

[0014] Preferably, one of the inner sidewalls of the top cover extends downward from the inside to form a positioning protrusion, and the lower edge of the other opposite inner sidewall of the top cover extends downward to form another positioning protrusion. The upper edges of the two opposite inner sidewalls of the base are provided with upward-facing positioning recesses, and the positioning protrusions are engaged with the positioning recesses. Attached Figure Description

[0015] Figure 1 This is an exploded view of the push-button switch of this utility model.

[0016] Figure 2 This is an exploded top view of the top cover and base of the push button switch of this utility model.

[0017] Figure 3 This is an exploded bottom view of the top cover and base of the push button switch of this utility model.

[0018] Figure 4 This is a structural diagram of the button and retaining spring of the push-button switch of this utility model.

[0019] Figure 5 This is a structural diagram of the button and base of the push-button switch of this utility model.

[0020] Figure 6 This is a structural diagram of the button and buffer component of the push-button switch of this utility model. Detailed Implementation

[0021] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0022] Please see Figures 1 to 3The push-button switch 100 of this utility model includes a base 1, a button 2, a compression spring 3, a magnetic shaft 4, and a light guide post 5. The button 2 is movably disposed within the base 1. The compression spring 3 is disposed between the button 2 and the base 1 and provides elastic force to allow one end of the button 2 to extend out of the base 1. A sleeve 21 is provided at the center of the button 2, and the magnetic shaft 4 is fixed inside the sleeve 21. A sleeve 1a is provided at the center of the base 1, and the sleeve 21 is slidably fitted inside the sleeve 1a. A mounting groove 1b is provided on one side of the base 1, and the light guide post 5 is disposed within the mounting groove 1b with its surface exposed. The base 1 includes a base 11 and a top cover 12. The top cover 12 is snap-fitted onto the base 11, and the sleeve 1b is disposed on the base 11. An opening 121 communicating with the inside and outside is provided on the upper side of the top cover 12, and the button 2 extends through the opening 121 and out of the top cover 12. The upper edge of the inner sidewall of the base 11 is provided with one of a positioning protrusion 122 and a positioning recess 111; the lower edge of the inner sidewall of the upper cover 12 is provided with the other of the positioning protrusion 122 and the positioning recess 111, and the positioning protrusion 122 engages with the positioning recess 111. Specifically, in this embodiment, one of the inner sidewalls of the upper cover 12 extends downward from the inside to form one of the positioning protrusions 122, and the lower edge of the other opposite inner sidewall of the upper cover 12 extends downward to form another positioning protrusion 122. The upper edges of the two opposite inner sidewalls of the base 11 are provided with upward-facing positioning recesses 111, and the positioning protrusion 122 engages with the positioning recess 111 so that the upper cover 12 is positioned on the base 11. The upper cover 12 and the interior of the base 11 form an inner cavity for accommodating the button 2 and the compression spring 3.

[0023] Please see Figure 1 and Figure 4The push-button switch 100 further includes a retaining spring 6, which has a first retaining position 6a and a second retaining position 6b. A protrusion 21 is provided on one side of the button 2. The protrusion 21 elastically engages with the retaining spring 6 and can slide between the first retaining position 6a and the second retaining position 6b. Specifically, the retaining spring 6 is elastic. When the protrusion 21 engages with the retaining spring 6, the retaining spring 6 provides elastic force, causing elastic contact between the two. By setting the retaining spring 6 and the first retaining position 6a and the second retaining position 6b, and utilizing the engagement of the protrusion 21 with the retaining spring 6, the button 2 can produce two distinct clicks when pressed, thus improving the tactile feel of the push-button switch 100. Specifically, the retaining spring 6 includes a positioning member 61 and symmetrically arranged elastic arms 62. The positioning member 61 and the elastic arms 62 are integrally formed. More specifically, the retaining spring 6 is formed by repeatedly bending a long strip of spring. The positioning member 61 is generally rectangular in shape. Two elastic arms 62 are formed at both ends of the spring, located on one side of the rectangle. The middle portions of the two elastic arms 62 bend and protrude towards each other, forming a narrow channel 6c between them. The upper side of the channel 6c forms the first locking position 6a, and the lower side forms the second locking position 6b. The upper end of the first locking position 6a is open, and its width gradually decreases from top to bottom; the width of the second locking position 6b gradually increases from top to bottom. The channel 6c is located between and connects the first locking position 6a and the second locking position 6b. The two opposite sidewalls of the protrusion 21 are provided with arc-shaped bosses 211, which are accommodated in either the first locking position 6a or the second locking position 6b. The two arc-shaped protrusions 211 slide against the inner wall of the elastic arm 62 on the same side, and the width between the two arc-shaped protrusions 211 is greater than the width of the channel 6c. By setting the arc-shaped protrusions 211 to slide with the elastic arm 62, the retaining spring 6 can support the button 2 with its own elastic force, and can slide from the first locking position 6a to the second locking position 6b when the button 2 is pressed, thereby achieving a tactile feedback. In addition, the ends of the two elastic arms 62 are rolled inward to form guide portions to guide the arc-shaped protrusions 211 into the first locking position 6a.

[0024] Please see Figure 5The inner wall of the base 11 is provided with a guide groove 112, and the outer wall of the button 2 is provided with a guide rail 22, which is slidably disposed in the guide groove 112. In this embodiment, at least three of the four inner walls of the base 11 are provided with guide grooves 112, and the corresponding three outer walls of the button 2 are provided with guide rails 22. By utilizing the cooperation between the guide grooves 112 and the guide rails 22, the sliding between the button 2 and the base 11 is smoother, preventing the button 2 from wobbling left or right and improving the accuracy of the button 2's up and down sliding.

[0025] Please see Figure 6 The button 2 has two opposite outer sidewalls with buffer members 23, and the upper and lower ends of the buffer members 23 have elastic buffer heads 231. Specifically, a symmetrical limiting block 23a is provided on the same sidewall of the button 2. The limiting block 23a has an L-shaped structure, and a groove 23b is formed between the two limiting blocks 23a. The buffer member 23 is engaged in the groove 23b. The buffer member 23 reduces the impact noise that occurs when the button 2 slides up and down with the base 1, thereby improving the quietness of the button switch 100. In addition, in this embodiment, the two limiting blocks 23a are combined to form a strip shape, which serves as the guide rail 22 and cooperates with the guide groove 112. This simplifies the structure of the button 2 and makes it fit more compactly with the base 11. The buffer member 23 is made of soft rubber material, such as silicone or rubber.

[0026] For example Figure 1 and Figure 2 As shown, the upper cover 12 has elastic buckles 123 on opposite sides, and the base 11 has engaging blocks 113 on opposite sides. The buckles 123 elastically engage with the engaging blocks 113. By cooperating with the engaging blocks 113, the upper cover 12 and the base 11 can be quickly connected and assembled, improving the ease of assembly of the base 1 and thus increasing production efficiency.

[0027] Compared with the prior art, this utility model provides one of a positioning protrusion 122 and a positioning recess 111 on the upper edge of the inner sidewall of the base 11, and the other of the positioning protrusion 122 and positioning recess 111 on the lower edge of the inner sidewall of the upper cover 12. During assembly, the positioning protrusion 122 engages with the positioning recess 111, allowing the upper cover 12 and the base 11 to align quickly, effectively ensuring their concentricity, thereby reducing assembly time and making assembly more convenient and faster. Simultaneously, the engagement of the positioning protrusion 122 and the positioning recess 111 prevents displacement between the upper cover 12 and the base 11, resulting in a more stable fit. This greatly satisfies the assembly requirements of the magnetic shaft 4 of the push-button switch 100 and the electrical components, ensuring the sensing effect of the electrical components.

[0028] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A push-button switch, characterized in that: The device includes a base, a button, and a compression spring. The button is movably disposed within the base, and the compression spring is disposed between the button and the base, providing an elastic force that causes one end of the button to extend out of the base. The base includes a base and a top cover. The top cover is snap-fitted onto the base, and the upper side of the top cover has an opening communicating with the inside and outside. The button extends through the opening and out of the top cover. The upper edge of the inner sidewall of the base has one of a positioning protrusion and a positioning recess. The lower edge of the inner sidewall of the top cover has the other of the positioning protrusion and positioning recess, and the positioning protrusion engages with the positioning recess.

2. The push-button switch according to claim 1, characterized in that: The push button switch also includes a retaining spring, which has a first retaining position and a second retaining position. A protrusion is provided on one side of the button, which elastically engages with the retaining spring and can slide between the first retaining position and the second retaining position.

3. The push-button switch according to claim 2, characterized in that: The retaining ring includes a positioning element and symmetrically arranged elastic arms. The middle portions of the two elastic arms are bent and protruded towards each other, thereby forming a narrow channel between the two elastic arms. The upper side of the channel forms the first retaining position, and the lower side forms the second retaining position.

4. The push-button switch according to claim 3, characterized in that: The two opposite sidewalls of the protrusion are provided with arc-shaped bosses, which slide against the inner sidewall of the elastic arm, and the width between the two arc-shaped bosses is greater than the width of the channel.

5. The push-button switch according to claim 1, characterized in that: The inner wall of the base is provided with a guide groove, and the outer wall of the button is provided with a guide rail, which is slidably disposed in the guide groove.

6. The push-button switch according to claim 1, characterized in that: The button has two opposite outer side walls with buffers, and the upper and lower ends of the buffers have elastic buffer heads; the outer side wall of the button has a symmetrical limiting block protruding from it, and a slot is formed between the two limiting blocks, and the buffer is locked in the slot.

7. The push-button switch according to claim 1, characterized in that: The push-button switch also includes a light guide post. The base is provided with a mounting groove, and the light guide post is disposed in the mounting groove with its surface exposed outside the mounting groove.

8. The push-button switch according to claim 1, characterized in that: The push-button switch also includes a magnetic shaft, and a sleeve is provided at the center of the button. The magnetic shaft is fixed inside the sleeve, and a sleeve is provided at the center of the base. The sleeve is slidably fitted inside the sleeve.

9. The push-button switch according to claim 1, characterized in that: The top cover has elastic buckles on opposite sides, and the base has locking blocks on opposite sides, with the buckles elastically locking into the locking blocks.

10. The push-button switch according to claim 1, characterized in that: One of the inner sidewalls of the top cover extends downward from the inside to form a positioning protrusion, and the lower edge of the other opposite inner sidewall of the top cover extends downward to form another positioning protrusion. The upper edges of the two opposite inner sidewalls of the base are provided with upward-facing positioning recesses, and the positioning protrusions are engaged with the positioning recesses.

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