CN220914087U - Key shaft body with small shaft core shaking and keyboard - Google Patents

Abstract

The utility model relates to a key shaft body with small shaft core shaking and a keyboard, the key shaft body comprises a shell and a shaft core, the shaft core is assembled in the shell and can be pressed to move downwards or reset to move upwards, at least one guide rail groove is axially arranged in the shell along the shell, ball rail grooves formed by inwards sinking inner walls at two sides of the guide rail groove are formed in the guide rail groove, rolling bodies are arranged in the ball rail grooves, a sliding block is arranged on the outer side wall of the shaft core, and the shaft core moves along the ball rail grooves through rolling contact of the sliding block and the rolling bodies.

Description

Key shaft body with small shaft core shaking and keyboard

Technical Field

The utility model relates to the technical field of keyboard switches, in particular to a key shaft body switch with a small shaft core shaking and a keyboard.

Background

In order to enable the key shaft core to slide smoothly, a certain gap exists between the key shaft core and the upper cover, and the key shaft core is easy to shake in the sliding process due to the gap, and collides with the upper cover in the shaking process, so that the noise generated when the key shaft core is pressed is large, and the key shaft core is to be improved. In the prior art, the utility model patent number 202221443785.6 discloses a keyboard switch with a pressing handle which is not easy to shake, and the keyboard switch comprises a base, a spring, the pressing handle and an upper cover, wherein the base is provided with a guide structure; the guiding structure with the structural design is in surface-to-surface contact with the pressing handle, and can limit the displacement of the pressing handle, but the smoothness of the pressing handle when moving is not satisfactory.

Disclosure of utility model

In order to solve the problems, the utility model provides a key shaft body with small shaft core shaking and a keyboard.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a key shaft body that axle core rocked little, includes casing and axle core, the axle core is assembled in the casing and can be pressed down to move or reset to reciprocate, be equipped with at least one guide rail groove along the casing axial in the casing, be located the ball rail groove that the inner wall of guide rail groove both sides inwards sunken formed, be equipped with the rolling element in the ball rail groove, be equipped with the slider on the lateral wall of axle core, the axle core passes through slider and rolling element rolling contact and moves along the ball rail groove. The utility model changes the traditional sliding movement mode, realizes the rolling guide structure through the ball guide groove structure, realizes the rolling contact of the shaft core and the shell, and effectively supplements the assembly gap between the shaft core and the shell in the movement process.

Preferably, the housing includes an upper cover and a shaft seat, and the shaft core is assembled on the upper cover and can be pressed to move downwards to retract inwards towards the shaft seat or reset to move upwards to extend towards the upper cover.

Preferably, the guide rail groove is arranged on the upper cover.

Preferably, the guide rail groove is arranged on the shaft seat.

Preferably, the rolling elements are any one of balls, rollers or needles.

Preferably, the shaft core is assembled on the upper cover and can be pressed to retract inwards towards the direction approaching the shaft seat, and a spring is arranged between the shaft core and the shaft seat.

A keyboard has a key shaft body with a small shake of the shaft core.

The utility model has the beneficial effects that: the utility model adopts rolling contact to replace traditional linear or planar contact, and can ensure smooth displacement of the shaft core while adopting the rolling guide structure of the combination of the ball guide rail and the guide groove in the assembly gap of the shaft core and the shell to limit and prevent the shaft core from shaking.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an exploded view of the switching shaft of the present utility model.

Fig. 3 is a schematic view of the upper cover of the present utility model.

Fig. 4 is a schematic view of the inventive mandrel.

Fig. 5 is a schematic view of the assembled upper cover, shaft core and ball of the present utility model.

Fig. 6 is a cross-sectional view of the present utility model.

Reference numerals

1. An upper cover; 11. an opening; 12. assembling a column; 13. a buckle groove; 14. a central slot; 15. ball rail grooves;

2. A shaft seat; 21. a fitting hole; 22. a side groove; 221. a buckle; 23. spring plate grooves; 231. a spring hole; 24. a conductive sheet groove; 241. a conductive sheet hole; 25. a receiving groove; 26. a connecting rib; 27. a guide rail groove; 28. a spring mounting groove; 29. a spring mounting post;

3. A shaft core; 31. a pressing part; 311. an axle center; 312. a convex plate; 313. limiting convex ribs; 32. a guide post; 321. a rolling guide rail; 324. transverse ribs; 325. a slide block; 326. a ball;

4. A spring plate; 5. a conductive sheet; 6. and (3) a spring.

Detailed Description

The utility model provides a key shaft body that axle core rocked little, includes casing and axle core 3, the casing includes upper cover 1 and the axle bed 2 of being connected with the 1 lock of upper cover, be equipped with shell fragment 4, conducting strip 5, spring 6 in the axle bed 2, the 2 middle part of axle bed is equipped with holding tank 2, is equipped with axle core 3 in the holding tank 2, axle core 3 passes through spring 6 to be connected locates in holding tank 25, the 1 top of upper cover is equipped with opening 11, the top of axle core 3 is outstanding in the casing through opening 11.

Referring to fig. 1-6, the upper cover 1 is a quadrilateral shell with an opening 11 facing downward, and the top of the upper cover 1 is provided with the opening 11. The opening 11 extends longitudinally downwards to form a central groove 14, and the central groove 14 is a hollow structure with the openings 11 at two ends. The outer surface of the central groove 14 is provided with at least one guide rail groove 27, four guide rail grooves 27 are respectively and oppositely distributed on the outer surface of the central groove 14, the guide rail groove 27 is of a hollow structure with openings 11 at two ends, the hollow structure is longitudinally arranged in the central groove 14, a sliding block notch is arranged in the middle of the joint surface of the guide rail groove 27 and the central groove 14, the sliding block notch penetrates through the central groove 14 and is longitudinally arranged on the joint surface, the inner walls at two sides of the guide rail groove 27 are inwards sunken to form a ball rail groove 15, and balls 326 are arranged in the ball rail groove 15.

In this embodiment, the shaft core 3 includes a pressing portion 31 and a guide post 32, the pressing portion 31 is provided at the head of the shaft core 3, and the center of the pressing portion 31 is provided with an axle center 311. The guide post 32 is disposed on the lower surface of the pressing portion 31, at least one transverse rib 324 extending transversely is disposed on the outer surface of the guide post 32, in this embodiment, four transverse ribs 324 are respectively and oppositely disposed on the outer surface of the guide post 32, and a slider 325 is disposed at the free end of the transverse rib 324. A blind hole is formed in the center of the free end of the guide post 32, and the guide post 32 is used for compressing and nesting the spring 6 in the positioning hole 29.

After the upper cover 1 and the shaft seat 2 are assembled, the guide post 32 of the shaft core 3 is matched with the spring 6 to be arranged in the accommodating groove 25 of the shaft seat 2, the transverse rib 324 of the shaft core 3 is propped against the inner side of the guide rail groove 27 through the slide block notch of the upper cover 1, the slide block 325 of the shaft core 3 is positioned in the middle of the guide rail groove 27, and the balls 326 are arranged on two sides of the guide rail groove 27, so that the radian surface of the balls 326 is contacted with the slide block 325 and the inner wall of the guide rail groove 27.

According to the utility model, the sliding block 325 is arranged on the shaft core 3, the guide rail groove 27 with the built-in ball 326 is arranged on the upper cover 1, so that a rolling guide structure of a ball guide rail groove combination is formed, when the shaft core 3 is pressed, the sliding block 325 of the shaft core 3 can be longitudinally and downwards moved closely to the ball 326, and the ball 326 rolls along with the movement of the shaft core 3 and is contacted with the inner wall of the guide rail groove 27; after the stress of the shaft core 3 is relieved, the shaft core 3 moves longitudinally upwards due to the resilience force of the spring 6 to reset the shaft core 3, and the sliding block 325 still clings to the ball 326 to reset, so that the problem that the shaft core 3 swings is solved, and better key experience is provided for a user.

The above embodiments are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solution of the present utility model should fall within the scope of protection defined by the claims of the present utility model without departing from the spirit of the design of the present utility model.

Claims (7)

1. The utility model provides a little button axis body is rocked to axle core, includes casing and axle core, the axle core is assembled in the casing and can be pressed down and move or reset and move up, its characterized in that: the novel rolling bearing is characterized in that at least one guide rail groove is formed in the shell along the axial direction of the shell, the guide rail grooves are formed by inwards sinking inner walls at two sides of the guide rail groove, rolling bodies are arranged in the ball rail grooves, a sliding block is arranged on the outer side wall of the shaft core, and the shaft core moves along the ball rail grooves through rolling contact of the sliding block and the rolling bodies.

2. The key shaft body with small shaft core shake according to claim 1, wherein: the shell comprises an upper cover and a shaft seat, wherein the shaft core is assembled on the upper cover and can be pressed to move downwards to retract inwards towards the direction close to the shaft seat or reset to move upwards to extend towards the upper cover.

3. The key shaft body with small shaft core shake according to claim 2, wherein: the guide rail groove is arranged on the upper cover.

4. The key shaft body with small shaft core shake according to claim 2, wherein: the guide rail groove is arranged on the shaft seat.

5. The key shaft body with small shaft core shake according to claim 1, wherein: the rolling bodies are any one of balls, rollers or rolling needles.

6. The key shaft body with small shaft core shake according to claim 2, wherein: the shaft core is assembled on the upper cover and can be pressed to retract inwards towards the direction close to the shaft seat, and a spring is arranged between the shaft core and the shaft seat.

7. A keyboard having a key shaft with a small shake of the shaft core according to any one of claims 1 to 5.