Stable key structure

Abstract

The utility model discloses a stable key structure which comprises a base, an upper cover, a pressing shaft and a reset spring installed between the base and the pressing shaft, the upper end of the pressing shaft is provided with a cross-shaped plug for inserting a key cap, the periphery of the cross-shaped plug is further provided with an annular body, the annular body surrounds the cross-shaped plug and is provided with an annular cavity in the direction facing the base, and the annular cavity is provided with a through hole. One end of the reset spring abuts against the base, and the other end of the reset spring is embedded into the annular cavity and abuts against the annular body. According to the key structure, the annular body is designed, and one end of the reset spring is directly abutted against the annular body, so that the supporting area of the spring is effectively increased, the abutting height of the spring is increased, and more uniform and more durable elastic force can be provided; besides, an accommodating cavity can be formed for accommodating a magnet, so that the key can be matched with elements such as a Hall sensor for use, and more complicated functions are realized.

Description

Technical Field

[0001] This utility model relates to the field of buttons, specifically to a stable button structure. Background Technology

[0002] In the existing button structure, such as Figure 6 As shown, springs typically abut against a guide post or platform extending from the bottom of the button shaft to provide the necessary elasticity for the button. However, this design has several drawbacks. First, the spring's stability is relatively poor, making it susceptible to external interference, leading to unstable button feel. Furthermore, the spring's elasticity may diminish over time, further impacting the user experience. Additionally, with technological advancements, some buttons require integration with electronic components such as Hall effect sensors to achieve more complex functions. However, some existing button structures cannot meet this demand because the connection method between the spring and the guide post or platform limits the flexibility and functional expandability of the button structure. Utility Model Content

[0003] To address the aforementioned problems, this utility model aims to provide a spring-balanced and stable button structure.

[0004] To achieve this technical objective, the present invention provides a stable button structure, comprising a base, a top cover, a button shaft, and a return spring installed between the base and the button shaft. The upper end of the button shaft is provided with a cross-shaped plug for inserting a keycap. A ring-shaped body is also formed around the cross-shaped plug, which surrounds the cross-shaped plug and forms an annular cavity in the direction facing the base. One end of the return spring abuts against the base, and the other end is embedded in the annular cavity and abuts against the ring-shaped body.

[0005] Preferably, the top of the annular body is flush with the top of the cross-shaped plug, the annular body has an inner wall and an outer wall, and the inner wall of the annular body extends downward to form an accommodating cavity.

[0006] Preferably, the base has an upward-protruding hollow frustum, and the reset spring is sleeved on the outside of the frustum.

[0007] Preferably, the outer diameter of the inner sidewall matches the inner diameter of the frustum.

[0008] Preferably, the outer diameter of the return spring matches the inner diameter of the outer side wall.

[0009] Preferably, a magnet is provided inside the accommodating cavity.

[0010] Preferably, the upper cover has a through hole in the middle corresponding to the push shaft, and the edge of the through hole has an arc-shaped elastic protrusion. The top surface of the elastic protrusion abuts against the outer wall of the push shaft, and the upper cover is fastened to the base.

[0011] The beneficial effects of this utility model are: by designing a ring-shaped body and directly abutting one end of the return spring against the ring-shaped body, this button structure effectively increases the support area of ​​the spring and extends the abutting height of the spring, which can provide more uniform and longer elastic force; in addition, it can also construct a cavity for placing a magnet, so that the button can be used in conjunction with components such as Hall sensors to achieve more complex functions. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is an exploded view of the present invention;

[0014] Figure 3 This is a cross-sectional view of the present invention;

[0015] Figure 4 This is a schematic diagram of the shaft structure in this utility model;

[0016] Figure 5 This is a schematic diagram of the push shaft and return spring in this utility model.

[0017] Figure 6 This refers to the existing button reset spring mounting method mentioned in the background art.

[0018] In the diagram: 1. Base; 11. Frustum; 2. Top cover; 21. Through hole; 22. Elastic protrusion; 3. Button; 31. Cross plug; 32. Ring-shaped body; 33. Annular cavity; 34. Receiving cavity; 4. Return spring; 5. Magnet. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. To provide a clear and complete description of the technical solution, the following embodiments are selected for illustration; these embodiments are only some embodiments of the present invention; other embodiments obtained based on this application without creative effort are all within the scope of protection of the present invention.

[0020] In the following embodiments, it should be noted that the terms "upper," "lower," "left," "right," "inner," "outer," "top / bottom," etc., are all based on the orientation or positional relationship shown in the accompanying drawings and are only for the purpose of clearly describing this embodiment. They do not indicate or imply that the device or element referred to must have a specific orientation, and therefore should not be construed as a limitation of this application. At the same time, the terms "first" and "second" in the embodiments are only used for descriptive purposes and do not represent an indication or implication of relative importance.

[0021] like Figure 1-5As shown, a specific embodiment of this utility model is a stable button structure, including a base 1, a top cover 2, a push shaft 3, and a return spring 4. The base 1 serves as the bottom support structure for the button, the top cover 2 serves as the top cover structure for the button, the push shaft 3 is used to connect the keycap and transmit the button action, and the return spring 4 is used to provide the elastic force required for the button to reset.

[0022] The upper end of the pivot 3 has a cross-shaped plug 31 for inserting a keycap, and a ring-shaped body 32 is also formed around the cross-shaped plug 31. The ring-shaped body 32 surrounds the cross-shaped plug 31 and has an annular cavity 33 in the direction facing the base 1. The annular cavity 33 is used to accommodate one end of the return spring 4. The top height of the ring-shaped body 32 is flush with the top height of the cross-shaped plug 31.

[0023] Specifically, one end of the return spring 4 is embedded in the annular cavity 33 and directly abuts against the annular body 32, i.e., the top inner wall of the push shaft 3, while the other end abuts against the base 1. In this way, the return spring 4 can be stably fixed between the base 1 and the push shaft 3, providing uniform elastic force.

[0024] As a specific embodiment of this application, the inner sidewall of the annular body 32 extends downward to form a receiving cavity 34. The receiving cavity 34 can be used to house the magnet 5 for use with components such as a Hall sensor.

[0025] The base 1 has an upward-protruding hollow truncated cone 11, and the return spring 4 is sleeved on the outside of the truncated cone 11. The design of the truncated cone 11 not only provides stable support for the return spring 4, but also helps to increase the stability of the entire button structure.

[0026] The outer diameter of the inner sidewall of the annular body 32 matches the inner diameter of the frustum 11 on the base 1 to ensure that the annular body 32 can be tightly installed on the base 1. At the same time, the outer diameter of the return spring 4 matches the inner diameter of the outer sidewall of the annular body 32 to limit the radial movement of the return spring 4, so as to ensure that the return spring 4 can be stably embedded in the annular cavity 33 and sleeved on the frustum 11.

[0027] The upper cover 2 has a through hole 21 in the middle corresponding to the button shaft 3. The edge of the through hole 21 has an arc-shaped elastic protrusion 22. The top surface of the elastic protrusion 22 abuts against the outer wall of the button shaft 3 to make the button shaft 3 more stable when pressed. The upper cover 2 is fastened to the base 1 to form a complete button structure.

[0028] Through the above specific implementation methods, the stable button structure of this patent achieves more stable and reliable button operation, and has the functional expandability to be used in conjunction with electronic components such as Hall sensors.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A stable button structure, comprising a base, a top cover, a button shaft, and a return spring installed between the base and the button shaft, wherein the upper end of the button shaft is provided with a cross-shaped plug for inserting a keycap, characterized in that, The cross-shaped plug is surrounded by an annular body that encloses the cross-shaped plug and has an annular cavity in the direction of the base. One end of the return spring abuts against the base, and the other end is embedded in the annular cavity and abuts against the annular body.

2. The stable button structure according to claim 1, characterized in that, The top of the annular body is flush with the top of the cross-shaped plug. The annular body has an inner wall and an outer wall, and the inner wall of the annular body extends downward to form a receiving cavity.

3. The stable button structure according to claim 2, characterized in that, The base has an upward-protruding hollow truncated cone, and the return spring is sleeved on the outside of the truncated cone.

4. The stable button structure according to claim 3, characterized in that, The outer diameter of the inner sidewall matches the inner diameter of the frustum.

5. The stable button structure according to claim 3, characterized in that, The outer diameter of the return spring matches the inner diameter of the outer wall.

6. The stable button structure according to claim 2, characterized in that, A magnet is installed inside the accommodating cavity.

7. The stable button structure according to claim 2, characterized in that, The upper cover has a through hole in the middle corresponding to the push shaft, and the edge of the through hole has an arc-shaped elastic protrusion. The top surface of the elastic protrusion abuts against the outer wall of the push shaft, and the upper cover is fastened to the base.

Images