Shaft body structure and keyboard

Abstract

The utility model relates to a shaft body structure and a keyboard. The shaft body structure comprises an upper cover, a lower cover and a shaft core which linearly moves up and down, the upper cover and the lower cover are fixedly connected with each other, the shaft core is partially inserted into a cavity defined by the upper cover and the lower cover, an elastic upper elastic arm is arranged on the side wall of the shaft core, and an elastic lower elastic arm is arranged at the lower end of the shaft core; when the shaft core is located at a pressing stroke end point, the lower elastic arm is tightly pressed on the bottom surface of the inner wall of the lower cover; when the shaft core is located at the end point of the springback stroke, the upper elastic arm is tightly pressed on the inner wall of the upper cover. According to the technical scheme, the upper elastic arm and the lower elastic arm are arranged on the shaft core, the shaft core is in elastic touch at the downward pressing and rebounding stroke end point, sound generated when the shaft body is used can be reduced, the mute effect is achieved, the upper elastic arm and the lower elastic arm have elasticity, the shaft core has good elasticity at the downward pressing or rebounding final stroke, the hand feeling of the shaft core is enough, and the service life of the shaft core is prolonged. The sound is reduced, the hand feeling of the shaft body is improved, and the use requirements of users are met.

Description

Technical Field

[0001] The present application relates to the field of keyboard technology, and more specifically to a shaft structure and a keyboard. Background Art

[0002] A keyboard is a common input device for computer commands and data. Mechanical keyboards are a type of keyboard, and the switch is a key component. The switch structure is closely related to the typing feel and sound. A switch structure generally consists of a core, an upper cover, and a lower cover. When the core is pressed down to the end of its travel, it hits the lower cover, producing a bottoming sound. When the core rebounds to the end of its travel, it hits the upper cover, producing a rebound sound. There is a need to develop a switch structure that reduces the noise. Utility Model Content

[0003] The purpose of this application is to overcome the above-mentioned deficiencies in the prior art and to provide a shaft structure and a keyboard that make less noise when used.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solutions: a shaft structure, which includes an upper cover, a lower cover and a shaft core that moves linearly up and down, the upper cover and the lower cover are fixedly connected to each other, the shaft core is partially inserted into the cavity surrounded by the upper cover and the lower cover, the side wall of the shaft core is provided with an elastic upper elastic arm, and the lower end of the shaft core is provided with an elastic lower elastic arm; when the shaft core is at the end point of the downward stroke, the lower elastic arm is tightly pressed against the bottom surface of the inner wall of the lower cover; when the shaft core is at the end point of the rebound stroke, the upper elastic arm is tightly pressed against the inner wall of the upper cover.

[0005] In a possible solution, a boss is provided on the side wall of the shaft core, and the upper spring arm is provided on the top of the boss. The upper spring arm, the boss and the shaft core are integrally formed.

[0006] In a possible solution, there are two upper elastic arms and they are symmetrically arranged on two opposite side walls of the shaft core.

[0007] In a possible solution, the lower elastic arm includes a long arm and a short arm, and the distance between the outer end of the long arm and the bottom surface of the inner wall of the lower cover is smaller than the distance between the outer end of the short arm and the bottom surface of the inner wall of the lower cover.

[0008] In a possible solution, the lower elastic arm also includes a root, the long arm and the short arm are respectively connected to both sides of the root, and the root is connected to the shaft core.

[0009] In a possible solution, there are two lower elastic arms, which are symmetrically arranged at the lower ends of the two opposite side walls of the shaft core.

[0010] In a possible solution, the lower elastic arm and the shaft core are formed as one piece.

[0011] In a possible solution, the shaft core is provided with a middle cylinder extending downward, and the lower cover is provided with a corresponding guide cylinder. The middle cylinder is inserted into the guide cylinder and forms a sliding connection. A compression spring is also provided between the shaft core and the lower cover. The compression spring is sleeved outside the middle cylinder and the guide cylinder. The upper end of the compression spring presses against the inner wall of the shaft core, and the lower end of the compression spring presses against the bottom surface of the inner wall of the lower cover.

[0012] The present application also discloses a keyboard, which includes the shaft structure in the above solution.

[0013] Compared with the prior art, the beneficial effects of the present application are as follows: an upper elastic arm and a lower elastic arm are respectively provided on the shaft core, and the shaft core is elastically touched at the end of the downward pressing and rebounding strokes, which can reduce the noise generated when the shaft body is used, thereby achieving a silent effect. Moreover, the upper elastic arm and the lower elastic arm are elastic, and the shaft core has good elasticity at the final stroke of downward pressing or rebounding, so that the shaft core feels elastic enough, which improves the feel of the shaft body while reducing the noise, thereby meeting the needs of users.

[0014] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional diagram of the shaft structure assembly of this application.

[0016] Figure 2 This is a sectional stereoscopic diagram of the shaft structure assembly of this application.

[0017] Figure 3 This is an exploded diagram of the shaft structure of this application.

[0018] Figure 4 This is a partial cross-sectional view of the shaft structure of this application.

[0019] It should be noted that the products shown in the above views have been appropriately reduced / enlarged to suit the size of the drawings and for clarity of the views, and there is no restriction on the size of the products shown in the views. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of this application more clear, this application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0022] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The embodiment of the present application is a shaft structure, and its specific structure is as follows Figure 1-4 shown.

[0024] like Figure 1 As shown, the shaft structure includes an upper cover 10, a lower cover 20 and a shaft core 30 that can move linearly up and down. The upper cover 10 and the lower cover 20 can be made of PC material. Figure 1 The shaft core 30 in the embodiment has a dustproof wall 39. In other embodiments, the shaft core can also be a cross-shaped shaft core without a dustproof wall. The upper cover 10 and the lower cover 20 are fixedly connected to each other. Specifically, the connection between the upper cover 10 and the lower cover 20 is a detachable snap-fit ​​connection structure, which facilitates the disassembly of the shaft for maintenance or part replacement. The upper cover 10 has a latching tongue 11, and the lower cover 20 has a corresponding stop block 21. When the latching tongue 11 passes over the stop block 21, the two are connected.

[0025] like Figure 2 As shown, a portion of the shaft core 30 is inserted into the cavity formed by the upper cover 10 and the lower cover 20. Figure 2 and Figure 3 As shown, the side wall of the shaft core 30 is provided with an elastic upper elastic arm 31, and the lower end of the shaft core 30 is provided with an elastic lower elastic arm 32. When the shaft core 30 is at the end of its downward stroke, the lower elastic arm 32 is pressed tightly against the bottom surface 201 of the inner wall of the lower cover 20, and when the shaft core 30 is at the end of its rebound stroke, the upper elastic arm 31 is pressed tightly against the inner wall 101 of the upper cover 10. In other words, the shaft core 30 produces elastic touch at the end of both the downward and rebound strokes, which can reduce the sound generated by the touch and achieve a silent effect. In addition, the upper elastic arm 31 and the lower elastic arm 32 are elastic, and the shaft core 30 has good elasticity during the final stroke of downward or rebound, making the shaft core 30 feel sufficiently elastic, thereby reducing the sound while improving the feel of the shaft body.

[0026] In some embodiments, as Figure 3 As shown, the side wall of the shaft core 30 is provided with a boss 33, and the upper spring arm 31 is provided at the top of the boss 33. The shaft core 30 can be made of POM material, and the upper spring arm 31, the boss 33 and the shaft core 30 are integrally formed, which can reduce the process of separately preparing and assembling the upper spring arm 31 and the boss 33, and ensure sufficient structural strength.

[0027] In some embodiments, as Figure 2 As shown, there are two upper elastic arms 31 and they are symmetrically arranged on the two opposite side walls of the shaft core 30. Therefore, when the shaft core 30 reaches the end of its rebound stroke, the upper elastic arms 31 on both sides of the shaft core 30 touch the inner wall 101 of the upper cover 10 at the same time, so that the shaft core 30 is subjected to more balanced force.

[0028] In some embodiments, combined Figure 2 and Figure 3 As shown, the shaft core 30 is provided with a middle cylinder 34 extending downward, and the lower cover 20 is provided with a corresponding guide cylinder 22. The middle cylinder 34 penetrates into the guide cylinder 22 and forms a sliding connection to guide the shaft core 30 to move up and down, so that the shaft core 30 does not shake easily. In addition, a compression spring 36 is provided between the shaft core 30 and the lower cover 20. The compression spring 36 is sleeved outside the middle cylinder 34 and the guide cylinder 22. The upper end of the compression spring 36 presses against the inner wall of the shaft core 30, and the lower end of the compression spring 36 presses against the bottom surface 201 of the inner wall of the lower cover 20. The compression spring 36 provides a rebound force for the shaft core 30, so that the shaft core 30 can quickly return to its original position after being pressed down. In addition, combined with Figure 2 and Figure 3 As shown, the shaft structure is a magnetic shaft, so a magnet 35 is fixed inside the middle cylinder 34 of the shaft core 30, and the magnet 35 is made of neodymium iron boron. In some embodiments, a light guide 37 can be inserted and fixed to the wall of the lower cover 20, and the light guide 37 can be made of PMMA.

[0029] In some embodiments, as Figure 4 As shown, the lower elastic arm 32 includes a root 321, a long arm 322, and a short arm 323. The root 321 is connected to the shaft core 30, and the long arm 322 and the short arm 323 are respectively connected to the two sides of the root 321. The long arm 322 and the short arm 323 extend in opposite directions. The distance H1 between the outer end 3220 of the long arm 322 and the inner bottom surface 201 of the lower cover 20 is smaller than the distance H2 between the outer end 3230 of the short arm 323 and the inner bottom surface 201 of the lower cover 20. When the shaft core 30 is pressed downward, the outer end 3220 of the long arm 322 will first contact the inner bottom surface 201 of the lower cover 20. Due to the long length of the long arm 322, the force on the long arm 322 is relatively small, and the sound produced when the long arm 322 first hits the inner bottom surface 201 of the lower cover 20 is also relatively small. The shaft core 30 then continues to press downward, and the outer end 3230 of the short arm 323 contacts the inner bottom surface 201 of the lower cover 20. At this time, the downward resistance of the shaft core 30 is the restoring force of the compression spring 36, the force on the long arm 322, and the force on the short arm 323. Thus, as the shaft core 30 approaches the end of its downward stroke, the resistance it encounters gradually increases, thereby providing a better pressing feel.

[0030] In some embodiments, as Figure 2As shown, there are two lower elastic arms 32 symmetrically disposed at the lower ends of opposite side walls of the shaft core 30. Therefore, when the shaft core 30 reaches the end of its downward stroke, the lower elastic arms 32 on both sides of the shaft core 30 touch the bottom surface 201 of the inner wall of the lower cover 20, making the shaft core 30 more evenly stressed.

[0031] In some embodiments, the lower elastic arm 32 and the shaft core 30 are integrally formed, which can reduce the process of separately preparing and assembling the lower elastic arm 32 and ensure sufficient structural strength.

[0032] Another embodiment of the present application is a keyboard, which includes the axis structure of the above embodiment.

[0033] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.

[0034] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0036] The above examples are merely used to further illustrate the technical content of this application to facilitate understanding by the reader, but do not limit the implementation of this application to these examples. Any technical extension or re-creation based on this application is protected by this application. The scope of protection of this application shall be based on the claims.

Claims

1. A shaft structure comprising an upper cover, a lower cover, and a shaft core that moves linearly up and down, wherein the upper cover and the lower cover are fixedly connected to each other, and the shaft core is partially inserted into a cavity enclosed by the upper cover and the lower cover, characterized in that: The side wall of the shaft core is provided with an elastic upper elastic arm, and the lower end of the shaft core is provided with an elastic lower elastic arm; when the shaft core is at the end of the downward stroke, the lower elastic arm is tightly pressed against the bottom surface of the inner wall of the lower cover; when the shaft core is at the end of the rebound stroke, the upper elastic arm is tightly pressed against the inner wall of the upper cover.

2. The shaft structure according to claim 1, wherein: A boss is provided on the side wall of the shaft core, and the upper elastic arm is arranged on the top end of the boss.

3. The shaft structure according to claim 2, wherein: The upper spring arm, boss and shaft core are integrally formed.

4. The shaft structure according to any one of claims 1 to 3, characterized in that: There are two upper elastic arms which are symmetrically arranged on two opposite side walls of the shaft core.

5. The shaft structure according to claim 1, wherein: The lower elastic arm includes a long arm and a short arm, and the distance between the outer end of the long arm and the bottom surface of the inner wall of the lower cover is smaller than the distance between the outer end of the short arm and the bottom surface of the inner wall of the lower cover.

6. The shaft structure according to claim 5, characterized in that: The lower elastic arm also includes a root, the long arm and the short arm are respectively connected to both sides of the root, and the root is connected to the shaft core.

7. The shaft structure according to claim 1, 5 or 6, characterized in that: There are two lower elastic arms which are symmetrically arranged at the lower ends of the two side walls opposite to the axis core.

8. The shaft structure according to claim 1, 5 or 6, characterized in that: The lower elastic arm and the shaft core are integrally formed.

9. The shaft structure according to claim 1, wherein: The shaft core is provided with a middle cylinder extending downward, and the lower cover is provided with a corresponding guide cylinder. The middle cylinder penetrates into the guide cylinder and forms a sliding connection. A compression spring is also provided between the shaft core and the lower cover. The compression spring is sleeved outside the middle cylinder and the guide cylinder. The upper end of the compression spring abuts against the inner wall of the shaft core, and the lower end of the compression spring abuts against the bottom surface of the inner wall of the lower cover.

10. A keyboard, characterized in that It includes the shaft structure according to any one of claims 1-9.

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