CN215988534U

CN215988534U - Keyboard upper cover

Info

Publication number: CN215988534U
Application number: CN202121968335.4U
Authority: CN
Inventors: 蒋学伟
Original assignee: Zhuhai Langguan Precision Mold Co ltd
Current assignee: Zhuhai Langguan Precision Mold Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-03-08
Anticipated expiration: 2031-08-20

Abstract

The utility model aims to provide a keyboard upper cover which is low in cost, stable in work and free from injection molding marks. The key groove comprises a main body and a plurality of key caps, wherein a plurality of key grooves matched with the key caps are correspondingly arranged on the main body, the bottoms of the inner sides of the key grooves are integrally provided with a cross rib arranged along a diagonal line and a pair of sliding blocks symmetrically arranged, sliding grooves matched with the sliding blocks are formed in two sides of each key groove, and a glue injection block is arranged in the middle of the side edge of at least one key groove. The utility model is applied to the technical field of keyboard structures.

Description

Keyboard upper cover

Technical Field

The utility model is applied to the technical field of keyboard structures, and particularly relates to a keyboard upper cover.

Background

Traditional film keyboard upper cover structure comprises upper cover and a plurality of key cap usually, and wherein the direction mode of the key seat in key cap and the upper cover mainly has three kinds of structures, is crater structure, scissors foot structure and palace post structure respectively, wherein crater structure because area of contact makes guide post part wearing and tearing easily greatly, leads to the later stage to feel unfixed and easy fatigue. The scissor leg structure overcomes the problem of poor stability of the crater structure, but the manufacturing process is complex and the maintenance cost is high. The structure of the palace column separates the guide column from the keycap and enlarges the cross section area of the guide column, but the cost is relatively high.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide the keyboard upper cover which is low in cost, stable in work and free of injection molding traces.

The technical scheme adopted by the utility model is as follows: the key groove comprises a main body and a plurality of key caps, wherein a plurality of key grooves matched with the key caps are correspondingly arranged on the main body, the bottoms of the inner sides of the key grooves are integrally provided with a cross rib arranged along a diagonal line and a pair of sliding blocks symmetrically arranged, sliding grooves matched with the sliding blocks are formed in two sides of each key groove, and a glue injection block is arranged in the middle of the side edge of at least one key groove.

According to the scheme, the cross-shaped ribs distributed along the diagonal line are matched with the end corners of the inner side wall of the key groove, and the sliding grooves are matched with the sliding blocks, so that the key cap is limited and guided, and the motion stability of the key cap is guaranteed. The glue injection block is used for providing a sufficient injection molding space during injection molding, so that an injection molding point is arranged in the middle of the side edge of the key groove, injection molding marks are prevented from being formed on the surface of the main body, and the surface of the main body is guaranteed to be smooth.

One preferred scheme is that a first sliding column is arranged at the end part of the cross rib, and the first sliding column is matched with the inner corner of the key groove.

According to the scheme, the first sliding column is arranged at the end angle of the cross rib, so that the keycap is in sliding fit with the key groove, abrasion is reduced, meanwhile, the rubber cap is further limited by the fact that the first sliding column is in tight fit with two surfaces of the key groove, and the key cap is guaranteed to be stable in operation.

One preferred scheme is that the end of the sliding block is provided with a barb, and the top of the sliding groove is provided with a stop block matched with the barb.

According to the scheme, the key cap is limited by the cooperation of the barb and the stop block, and the highest point of the stroke of the key cap is limited.

One preferable scheme is that one end of the stop block, which is far away from the sliding groove, is provided with a guide inclined plane matched with the barb.

According to the scheme, the guide inclined plane is arranged, so that the barb enters the sliding groove when the keycap is installed.

One preferred scheme is that the center of the bottom of the cross rib is provided with a limit bump.

According to the scheme, the limiting convex blocks are used for limiting the silica gel capacitor contacts matched with the keycaps, so that the silica gel capacitor contacts are always kept under the keycaps, and the long-time use is guaranteed to be still accurately triggered.

One preferred scheme is that the number of the key grooves provided with the glue injection blocks is three, and the three key grooves provided with the glue injection blocks are uniformly distributed along the length direction of the main body.

According to the scheme, the glue injection is more uniform by adopting a three-point uniform distribution mode, and the injection molding traces on the surface of the main body are further avoided.

One preferred scheme is that the inboard of key cap still symmetric distribution has the C shape guide block, two corner portions of C shape guide block all are provided with the second and slide the post.

According to the scheme, the C-shaped guide block is matched with the key groove, so that the key caps are strip-shaped to guide, and then longer key caps such as space keys are guided, and the smoothness and the stability of the operation of the key caps are ensured. And the second sliding column is in sliding fit with the corner on the inner side of the key groove, so that the abrasion is reduced.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the body;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic perspective view of the key cap in a first state;

fig. 5 is a perspective view of the key groove in a second state.

Detailed Description

As shown in fig. 1 to 5, in this embodiment, the key assembly of the present invention includes a main body 1 and a plurality of key caps 2, a plurality of key grooves 3 adapted to the plurality of key caps 2 are correspondingly disposed on the main body 1, a cross rib 4 is integrally disposed at the bottom of the inner side of each key groove 3 along a diagonal line, and a pair of sliding blocks 5 are symmetrically disposed at the bottom of the inner side of each key groove 3, sliding grooves 6 adapted to the sliding blocks 5 are disposed on both sides of each key groove 3, and a glue injection block 7 is disposed in the middle of a side edge of at least one key groove 3. The bottom of the cross rib 4 is provided with an invagination groove.

In this embodiment, the end of the cross rib 4 is provided with a first sliding column 8, and the first sliding column 8 is matched with the inner corner of the key slot 3.

In this embodiment, the end of the sliding block 5 is provided with a barb 9, and the top of the sliding slot 6 is provided with a stop block 10 matched with the barb 9.

In this embodiment, a guiding inclined surface 11 matched with the barb 9 is arranged at one end of the stop block 10 far away from the sliding groove 6.

In this embodiment, a limiting bump 12 is disposed at the center of the bottom of the cross rib 4.

In this embodiment, the number of the key slots 3 provided with the glue injection blocks 7 is three, and the three key slots 3 provided with the glue injection blocks 7 are uniformly distributed along the length direction of the main body 1.

In this embodiment, C-shaped guide blocks 13 are also symmetrically distributed on the inner side of the keycap 2, and second sliding columns 14 are arranged at two corner portions of the C-shaped guide blocks 13.

Claims

1. A keyboard upper cover is characterized in that: it includes main part (1) and a plurality of key cap (2), correspond on main part (1) and be provided with a plurality of keyways (3) with a plurality of key cap (2) looks adaptation, the inboard bottom integral type of keyway (3) is provided with along the diagonal and is provided with cross muscle (4) and symmetry and is provided with a pair of slider (5), the both sides of keyway (3) all be provided with spout (6) of slider (5) looks adaptation, at least one the lateral margin middle part of keyway (3) is provided with notes gluey piece (7).

2. A keyboard upper cover according to claim 1, wherein: the end part of the cross rib (4) is provided with a first sliding column (8), and the first sliding column (8) is matched with the inner corner of the key groove (3).

3. A keyboard upper cover according to claim 1, wherein: the end part of the sliding block (5) is provided with a barb (9), and the top of the sliding groove (6) is provided with a stop block (10) matched with the barb (9).

4. A keyboard upper cover according to claim 3, wherein: one end of the stop block (10) far away from the sliding groove (6) is provided with a guide inclined plane (11) matched with the barb (9).

5. A keyboard upper cover according to claim 1, wherein: the center of the bottom of the cross rib (4) is provided with a limit bump (12).

6. A keyboard upper cover according to claim 1, wherein: the number of the key grooves (3) provided with the glue injection blocks (7) is three, and the three key grooves (3) provided with the glue injection blocks (7) are uniformly distributed along the length direction of the main body (1).

7. A keyboard upper cover according to claim 1, wherein: c-shaped guide blocks (13) are symmetrically distributed on the inner side of the keycap (2), and second sliding columns (14) are arranged at two corner parts of each C-shaped guide block (13).