CN220753280U

CN220753280U - Key structure

Info

Publication number: CN220753280U
Application number: CN202322492719.9U
Authority: CN
Inventors: 孙海瑞
Original assignee: Zhongshan Xinjia Mould Co ltd
Current assignee: Zhongshan Xinjia Mould Co ltd
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2024-04-09
Anticipated expiration: 2033-09-13

Abstract

The utility model discloses a key structure, which comprises a shaft seat, a shaft core and a key cap, wherein the shaft core is in sliding connection with the shaft seat along the vertical direction, the key cap is covered above the shaft core and is connected with the shaft core, a slot for inserting a balance rod is formed in the side surface of the shaft core, a first inclined surface is formed in the rear side of the top wall of the slot, and the height of the first inclined surface is gradually increased in the direction away from the balance rod; and two sides of the bottom wall of the slot are tilted upwards to form a blocking surface. The utility model can reduce the noise of knocking the key and reduce the moving distance of the balance bar in the transverse direction.

Description

Key structure

Technical Field

The utility model relates to the technical field of keys of keyboards, in particular to a key structure.

Background

A keyboard is an instruction and data input device for operating a computer device, almost standard for office appliances. For some keys with larger size on the keyboard, such as "shift key", "backspace key" and the like, in order to prevent the keys from being easily tilted, two shaft bodies are generally arranged below the keycap, the two shaft body assemblies are connected through a balance rod, and when the shaft core of one shaft body moves downwards, the shaft core of the other shaft body can be driven to synchronously move downwards through the balance rod. As shown in fig. 1, the side of the shaft core 200 is provided with a slot 210, the balance bar 300 is inserted into the slot 210 obliquely, and because the top wall of the slot 210 is generally horizontal, the oblique angle of the end of the balance bar 300 abuts against the top wall of the slot 210, and during the movement of the shaft core 200 relative to the shaft seat 100, the oblique angle of the balance bar 300 scratches the top wall of the slot 210, thereby causing a loud noise when the key is knocked; meanwhile, the width of the slot 210 is large, and there is no corresponding limiting mechanism at both sides thereof, so that the balance bar 300 may move laterally in the slot 210.

Disclosure of Invention

The utility model provides a key structure which can reduce the noise of key knocking and reduce the moving distance of a balance bar in the transverse direction.

In order to solve the problems, the utility model adopts the following technical scheme:

the embodiment of the utility model provides a key structure, which comprises a shaft seat, a shaft core and a key cap, wherein the shaft core is in sliding connection with the shaft seat along the vertical direction, the key cap is covered above the shaft core and is connected with the shaft core, a slot for inserting a balance rod is arranged on the side surface of the shaft core, a first inclined surface is arranged on the rear side of the top wall of the slot, and the height of the first inclined surface is gradually increased in the direction away from the balance rod; and two sides of the bottom wall of the slot are tilted upwards to form a blocking surface.

In some embodiments, the blocking surface is arcuate and the uppermost end of the blocking surface is flush with the side wall of the slot.

In some embodiments, a mounting post is disposed on one side of the axle seat, and a mounting hole is disposed on the bottom surface of the mounting post.

In some embodiments, a bracket is arranged on the other side of the shaft seat, a through rotating hole is arranged on the bracket, and the balance rod penetrates through the rotating hole and can rotate in the rotating hole.

In some embodiments, a catch is provided below the bracket.

In some embodiments, a positioning column is arranged below the bracket, and a positioning hole is arranged on the bottom surface of the positioning column.

In some embodiments, the top surface of the shaft seat is provided with a guide groove extending along the vertical direction, the shaft core is arranged in the guide groove and can move along the guide groove, and the top of the shaft core is provided with a convex column which extends out of the guide groove and is connected with the key cap.

The utility model has at least the following beneficial effects: the first inclined surface is arranged at the rear side of the top wall of the slot, the height of the first inclined surface is gradually increased in the direction away from the balance rod, the inclined direction of the first inclined surface is similar to the extending direction of the obliquely inserted balance rod, the first inclined surface can be abutted against the peripheral surface of the balance rod, and the balance rod is not easy to scrape the first inclined surface, so that the noise when a key is knocked can be reduced; meanwhile, as the two sides of the bottom wall of the slot are tilted upwards to form the blocking surface, the two blocking surfaces play a role in limiting and blocking the balance rod, and the moving distance of the balance rod in the transverse direction can be reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of a prior art shaft;

FIG. 2 is a schematic diagram of a key structure according to an embodiment of the present utility model with a key cap removed;

FIG. 3 is a schematic cross-sectional view of a key structure with a key cap removed according to an embodiment of the present utility model;

FIG. 4 is a schematic view of a mandrel according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of an axle seat according to an embodiment of the present utility model.

Wherein, the reference numerals are as follows:

axle seat 100, guide groove 110, mounting column 120, mounting hole 121, bracket 130, rotation hole 131, buckle 140, positioning column 150, positioning hole 151;

the shaft comprises a shaft core 200, a slot 210, a first inclined surface 211, a blocking surface 212, a convex column 220 and a groove 230;

balance bar 300.

Detailed Description

The following description is provided with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the utility model as defined in the claims and their equivalents. The description includes various specific details to aid in understanding, but these details should be regarded as merely exemplary. Accordingly, those skilled in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the utility model.

In the description of the present utility model, references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

It will be understood that when an element (e.g., a first element) is "connected" to another element (e.g., a second element), the element can be directly connected to the other element or there can be intervening elements (e.g., a third element) between the element and the other element.

An embodiment of the present utility model provides a key structure, as shown in fig. 2-5, including a shaft seat 100, a shaft core 200 slidably connected to the shaft seat 100 along a vertical direction, and a key cap covering over the shaft core 200 and connected to the shaft core 200, where, as the key cap is a conventional component, fig. 2 and 3 of the present utility model do not draw a schematic diagram of the key cap. When the user strikes the key cap, the spindle 200 moves downward relative to the spindle base 100. The side of the shaft core 200 is provided with a slot 210, and the end of the balance bar 300 is obliquely inserted into the slot 210. The rear side (the side away from the balance bar 300) of the top wall of the socket 210 is provided with a first inclined surface 211, the height of the first inclined surface 211 gradually increases in the direction away from the balance bar 300, and as an example of fig. 3, the balance bar 300 is inserted obliquely from the right side of the shaft core 200 into the socket 210, the direction away from the balance bar 300 is leftward, and the first inclined surface 211 is inclined upward leftward. Therefore, the inclined direction of the first inclined plane 211 is similar to the extending direction of the inclined inserted balance bar 300, the first inclined plane 211 can abut against the circumferential surface of the balance bar 300, and the balance bar 300 is not easy to scrape the first inclined plane 211 during the up-down movement of the shaft core 200 relative to the shaft seat 100, so that the noise generated when the key is struck can be reduced. Meanwhile, the two sides of the bottom wall of the slot 210 are tilted upwards to form the blocking surface 212, the two blocking surfaces 212 play a role in limiting and blocking the balance bar 300, so that the distance that the balance bar 300 moves along the transverse direction to the two sides of the slot 210 can be reduced, looseness of the balance bar 300 is avoided, and the key-press experience of a user is improved. In addition, the blocking surface 212 can further enhance the structural strength of the bottom wall of the slot 210 connected to the side wall of the slot.

In some embodiments, the blocking surface 212 is arcuate, which is compatible with the cross-sectional shape of the balance bar 300, and provides a better stop effect. Meanwhile, the uppermost end of the blocking surface 212 is flush with the side wall of the slot 210, so that the arc-shaped structure of the blocking surface 212 is more smooth in transition, and the manufacturing and the forming are facilitated.

In some embodiments, a mounting post 120 is disposed on one side of the axle seat 100 (the side far from the balance bar 300), a mounting hole 121 is disposed on the bottom surface of the mounting post 120, and a screw can be used to pass through the through hole and the mounting hole 121 on the keyboard chassis, and then a nut is sleeved on the screw to fix the axle seat 100 on the keyboard chassis. The screw fixing is adopted to facilitate the installation and the disassembly.

Further, the other side (the side close to the balance bar 300) of the shaft seat 100 is provided with a bracket 130, the bracket 130 is provided with a through rotation hole 131, and the balance bar 300 passes through the rotation hole 131 and can rotate in the rotation hole 131. Specifically, the balancing lever 300 may have a U-shaped structure, including a main lever and two connecting rods respectively disposed at two ends of the main lever, the main lever passing through the rotation hole 131 and being rotatable in the rotation hole 131, and the connecting rods being obliquely inserted into the slots 210.

Furthermore, a buckle 140 is disposed under the bracket 130, and the axle seat 100 can be fixed on the keyboard bottom plate through the buckle 140, so that the axle seat 100 is stable, and the buckle connection is convenient for installation and disassembly.

In some embodiments, the positioning column 150 is disposed below the support 130, the positioning hole 151 is disposed on the bottom surface of the positioning column 150, and the positioning rod may be disposed on the keyboard bottom plate, and when the shaft seat 100 is installed, the positioning rod is inserted into the positioning hole 151, so as to facilitate the shaft seat 100 to be installed in place quickly.

In some embodiments, the top surface of the axle seat 100 is provided with a guide slot 110 extending in a vertical direction, and the guide slot 110 may extend through the axle seat 100. The shaft core 200 is disposed in the guide groove 110 and can move along the guide groove 110, the top of the shaft core 200 is provided with a convex column 220, and the convex column 220 extends out of the guide groove 110 and is connected with the key cap.

In some embodiments, the side of the mandrel 200 is provided with a groove 230, the groove 230 is located above the slot 210, and the presence of the groove 230 can reduce the material used for manufacturing the mandrel 200 without affecting the structural strength of the mandrel 200, so as to reduce the manufacturing cost.

The terms and words used in the above description and claims are not limited to literal meanings but are only used by the applicant to enable a clear and consistent understanding of the utility model. Accordingly, it will be apparent to those skilled in the art that the foregoing description of the various embodiments of the utility model has been provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims and their equivalents.

Claims

1. A key structure, characterized in that: the balance rod comprises a shaft seat, a shaft core and a key cap, wherein the shaft core is in sliding connection with the shaft seat along the vertical direction, the key cap is covered above the shaft core and is connected with the shaft core, a slot for inserting the balance rod is formed in the side face of the shaft core, a first inclined plane is formed in the rear side of the top wall of the slot, and the height of the first inclined plane is gradually increased in the direction away from the balance rod; and two sides of the bottom wall of the slot are tilted upwards to form a blocking surface.

2. The key structure according to claim 1, wherein: the blocking surface is in a cambered surface shape, and the uppermost end of the blocking surface is flush with the side wall of the slot.

3. The key structure according to claim 1, wherein: one side of the shaft seat is provided with a mounting column, and the bottom surface of the mounting column is provided with a penetrating mounting hole.

4. A key structure according to claim 3, wherein: the other side of the shaft seat is provided with a bracket, the bracket is provided with a through rotating hole, and the balance rod penetrates through the rotating hole and can rotate in the rotating hole.

5. The key structure according to claim 4, wherein: the buckle is arranged below the bracket.

6. The key structure according to claim 4, wherein: the lower part of the support is provided with a positioning column, and the bottom surface of the positioning column is provided with a positioning hole.

7. The key structure according to any one of claims 1-6, wherein: the top surface of axle bed is provided with the guide way that extends along vertical direction, the axle core sets up in the guide way and can follow the guide way and remove, the top of axle core is provided with the projection, the projection stretches out outside the guide way and links to each other with the key cap.