CN219226130U

CN219226130U - Key cap resetting device for key module

Info

Publication number: CN219226130U
Application number: CN202320074079.7U
Authority: CN
Inventors: 张金鲁
Original assignee: Shenzhen Hangshi Electronic Technology Co ltd
Current assignee: Shenzhen Hangshi Electronic Technology Co ltd
Priority date: 2023-01-10
Filing date: 2023-01-10
Publication date: 2023-06-20
Anticipated expiration: 2033-01-10

Abstract

The application relates to a keycap resetting device for a key module, comprising: the base is used for bearing the key module and is provided with a containing cavity for containing at least one key of the key module; the top plate can move close to or away from the base, the top plate is provided with a top block, and when the top plate moves towards the base, the top block can prop against the scissor legs so as to enable the keycaps to be jacked up and reset; the pressing plate is used for pressing the key module on the base, and is provided with a through hole for the ejector block to pass through. The key cap reset device for the key module can realize batch restoration of key caps through the key cap reset device for the key module, and release silicon rubber particles to a natural state so as to lead the silicon rubber particles to be straightened, thereby rapidly solving the problem of poor key hand feeling after the key caps are buckled.

Description

Key cap resetting device for key module

Technical Field

The application belongs to the technical field of keyboards and relates to a keycap resetting device for a key module.

Background

In the related art, a generally ultra-thin key module is used on an electronic device such as a pen machine, a personal computer and the like, as shown in fig. 1, the key module comprises a bottom plate 91, a membrane switch 92 and keys, the keys are composed of a keycap 93, scissors legs 94 and silica gel particles 95, the scissors legs are connected between the keycap and the bottom plate, the scissors legs play a role of bouncing up after the keycap is pressed, the silica gel particles are arranged in the middle of the scissors legs, and contacts of the silica gel particles are contacted with the membrane switch after the keycap is pressed to generate input signals.

In the key assembly production of key module, because the key cap stroke is low, after the key cap is pressed on the bottom plate scissors foot when the key is assembled, often can appear that the key cap does not fully rebound, need manual button key cap lift in order to get back to normal condition, but can appear the crooked phenomenon of silicon micelle after detaining the key cap, lead to the feel of button poor.

Disclosure of Invention

In order to overcome the problems in the related art, the application aims to provide a key cap resetting device for a key module, which can realize batch restoration of key caps and release silicon rubber particles to a natural state so as to lead the silicon rubber particles to be corrected, thereby rapidly solving the problem of poor key hand feeling after key cap buckling.

The application is realized by the following technical scheme.

The technical scheme is to provide a key cap resetting device for a key module, comprising:

the base is used for bearing the key module and is provided with a containing cavity for containing at least one key of the key module;

the top plate can move close to or away from the base, the top plate is provided with a top block, and when the top plate moves towards the base, the top block can prop against the scissor legs so as to enable the keycaps to be jacked up and reset;

the pressing plate is used for pressing the key module on the base, and is provided with a through hole for the ejector block to pass through.

The key cap resetting device has the technical effects that the scissors feet are pushed to open from the bottom plate side of the key module through the top block of the top plate so as to lift the key cap, the key cap is not damaged, and the key cap resetting device is more reliable than the conventional mode of applying force to the key cap to lift the key cap; the key module is fixed on the base through clamping the two sides of the base and the pressing plate, the top plate drives the pushing top block to move downwards after the key module is fixed, the top block arranged on the top plate contacts with the scissor legs and jacks the scissor legs to a specified angle, and the key cap is released and aligned with the silica gel particles after the scissor legs are lifted.

In one embodiment of this solution, the top piece is slidably fitted in a through hole, which is also used for guiding the movement of the top piece.

In one embodiment of the present utility model, the end surface of the top block presents an inclined surface contacting with the scissor legs.

In one embodiment of the technical solution, the key cap resetting device further includes an elastic member, and the elastic member is disposed between the pressing plate and the top plate.

In one embodiment of the technical scheme, the elastic piece is a spring, one end of the elastic piece is connected to the pressing plate, and the other end of the elastic piece is connected to the concave hole of the top plate.

In one embodiment of the technical scheme, the base is provided with a guide post, the pressing plate is provided with a first guide hole corresponding to the guide post, the top plate is provided with a second guide hole corresponding to the guide post, and the guide post is matched with the first guide hole and the second guide hole respectively.

In one embodiment of the technical scheme, the number of the accommodating cavities is multiple, and each accommodating cavity is respectively corresponding to a key of the key module.

In one embodiment of the technical scheme, the base is provided with a positioning column, and the positioning column is used for being matched with a positioning hole on the key module so as to position the key module on the base.

In an implementation mode of the technical scheme, the key cap resetting device further comprises a frame and a power component, wherein the base and the power component are respectively arranged on the frame, the power component is connected with the top plate to drive the top plate to move, and the pressing plate is movably connected onto the top plate through an elastic piece.

In one embodiment of this aspect, the power component is a cylinder or an electric cylinder.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The foregoing and other objects, features and advantages of the application will be apparent from the following more particular descriptions of exemplary embodiments of the application as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the application.

Fig. 1 is a schematic diagram of a key structure in a key module in the prior art.

Fig. 2 is a schematic cross-sectional structure of a key cap resetting device according to an embodiment of the present application.

Fig. 3 is an exploded view of a key cap reset device according to an embodiment of the present application.

Fig. 4 is a schematic structural view of a top plate shown in an embodiment of the present application.

Fig. 5 is an enlarged schematic view of the M portion in fig. 3.

Reference numerals illustrate:

10-a base; 11-a receiving cavity; 12-guide posts; 13-positioning columns; 20-top plate; 21-a top block; 211-inclined plane; 22-a second guide hole; 23-concave holes; 30-pressing plates; 31-through holes; 32-a first guide hole; 40-elastic member; 50-a power component; 90-a key module; 91-a bottom plate; 92-membrane switch; 93-key cap; 94-scissors feet; 95-silicon gel particles.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which some embodiments of the present application are shown, and it is apparent that some, but not all embodiments of the present application are described. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following describes the technical scheme of the embodiments of the present application in detail with reference to the accompanying drawings.

As shown in fig. 1 to 5, the present embodiment provides a key cap resetting device for a key module, including: the base 10 is used for bearing the key module, and the base 10 is provided with a containing cavity 11 for containing at least one key of the key module; a top plate 20 capable of moving close to or far away from the base 10, wherein a top block 21 is arranged on the top plate 20, and when the top plate 20 moves towards the base 10, the top block 21 can prop against the scissor legs so as to enable the keycaps to be jacked up and reset; the pressing plate 30 is used for pressing the key module on the base 10, and the pressing plate 30 is provided with a through hole 31 for the top block 21 to pass through.

In this way, the top block 21 of the top plate 20 pushes the scissor legs to open from the bottom plate side of the key module so as to lift the key cap, so that the key cap is not damaged, and the method is more reliable than the conventional method of applying force to the key cap to lift the key cap; through base 10 and clamp plate 30 both sides clamp, fix the button module on base 10, the fixed back roof 20 of button module drives and promotes kicking block 21 downward movement, and kicking block 21 that sets up on roof 20 contacts the scissors foot and jack up the scissors foot to appointed angle, and the key cap is lifted the back silica gel particle along with the scissors foot and is released and return.

The number of the accommodating cavities 11 on the base 10 is multiple, each accommodating cavity 11 corresponds to the key arrangement of the key module, when the key module is placed on the base 10, one side of the key faces the base 10, one side of the bottom plate faces the pressing plate 30 and the top plate 20, one accommodating cavity 11 on the base 10 can correspond to one key, or one accommodating cavity 11 can correspond to more than two keys, and the depth of the accommodating cavity 11 is larger than the maximum stroke of the key.

The size and shape of through-hole 31 and kicking block 21 cross-section looks adaptation, when kicking block 21 sliding fit in through-hole 31, the lateral wall of kicking block 21 and the inner wall sliding contact of through-hole 31, through-hole 31 can also lead the motion of kicking block 21, because scissors foot volume is very little, can the position of supporting also usually fine, kicking block 21 motion also needs accurate, so, the direction of through-hole 31 can guarantee the tip of kicking block 21 can be accurate support on the scissors foot, prevent that kicking block 21 warp crooked emergence sideslip and skew.

The end surface of the top block 21 presents an inclined surface 211 contacted with the scissor legs, so that the maximum area of the end surface is contacted with the scissor legs, and sideslip and deflection are prevented.

The key cap resetting device further comprises an elastic element 40 connected between the pressing plate 30 and the top plate 20, and the top plate 20 can press the pressing plate 30 on the bottom plate of the key module through the elastic element 40 when moving towards the base 10.

Illustratively, the elastic member 40 is a spring, one end of the elastic member 40 is fixed on the pressing plate 30, and the other end is connected in the concave hole 23 of the top plate 20, so that the top plate 20 can be connected with the pressing plate 30 through the elastic member 40. In other embodiments, the pressing plate 30 may be a separate component, and is not connected to the top plate 20, for example, one end of the elastic member 40 is connected in the concave hole 23 of the top plate 20, and the other end abuts against the pressing plate 30.

The base 10 is provided with two guide posts 12, the pressing plate 30 is provided with a first guide hole 32 corresponding to the guide posts 12, the top plate 20 is provided with a second guide hole 22 corresponding to the guide posts 12, the first guide hole 32 and the second guide hole 22 of the guide posts 12 are matched respectively, the pressing plate 30 and the top plate 20 can move along the guide posts 12 relative to the base 10, the pressing plate 30 can be positioned by the guide posts 12, the top plate 20 is limited to move on the guide posts 12, and the guide posts 12 also play a role in guiding the movement of the top plate 20.

The base 10 is provided with a positioning column 13, and the positioning column 13 is used for being matched with a positioning hole on the key module so as to realize the positioning of the key module on the base 10.

The key cap resetting device lifts the top plate 20 and the pressing plate 30, then places the key module on the base 10 to align and fix the positioning column 13 with the positioning hole, the top plate 20 and the pressing plate 30 move downwards, the pressing plate 30 is firstly contacted and pressed on the bottom plate of the key module, the top plate 20 moves downwards continuously and compresses the elastic piece 40, and the top block 21 of the top plate 20 pushes against the scissor legs and pushes the scissor legs to jack up and reset the key cap.

In order to realize batch automatic operation, the top plate 20 is pushed to move by the power component 50 or other modes, the key cap resetting device further comprises a frame and the power component 50, not shown in the frame, wherein the base 10 and the power component 50 are respectively arranged on the frame, the output end of the power component 50 is connected with the top plate 20 to drive the top plate 20 to move, and the pressing plate 30 is movably connected to the top plate 20 through the elastic piece 40. Illustratively, the power component 50 is a cylinder or an electric cylinder.

The embodiments of the present application have been described above, the foregoing description is exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the improvement of technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A key cap resetting means for button module, its characterized in that includes:

2. The key cap resetting device for a key module as recited in claim 1, wherein the top block is slidably fitted in the through hole, and the through hole is further used for guiding the movement of the top block.

3. The key cap resetting device for a key module as recited in claim 1, wherein the end surface of the top block presents an inclined surface contacting with the scissor legs.

4. The key cap resetting device for a key module as recited in claim 1, further comprising an elastic member disposed between the pressing plate and the top plate.

5. The key cap resetting device for a key module as recited in claim 4, wherein the elastic member is a spring, one end of the elastic member is connected to the pressing plate, and the other end of the elastic member is connected to the concave hole of the top plate.

6. The key cap resetting device for a key module as claimed in claim 1, wherein the base is provided with a guide post, the pressing plate is provided with a first guide hole corresponding to the guide post, the top plate is provided with a second guide hole corresponding to the guide post, and the guide post is respectively matched with the first guide hole and the second guide hole.

7. The key cap resetting device for a key module as recited in claim 1, wherein the number of the accommodating chambers is plural, and each accommodating chamber is respectively corresponding to a key of the key module.

8. The key cap resetting device for a key module as recited in claim 1, wherein the base is provided with a positioning post for cooperating with a positioning hole on the key module to position the key module on the base.

9. The key cap resetting device for a key module as recited in any one of claims 1-8, further comprising a frame and a power unit, wherein the frame is provided with the base and the power unit, the power unit is connected with the top plate to drive the top plate to move, and the pressing plate is movably connected with the top plate through an elastic member.

10. The key cap resetting device for a key module as recited in claim 9, wherein the power part is a cylinder or an electric cylinder.