CN215451236U

CN215451236U - Prevent that silica gel button from gluing key structure

Info

Publication number: CN215451236U
Application number: CN202122183045.5U
Authority: CN
Inventors: 张双兴; 苏友虎
Original assignee: Jiangxi Fengyuda Electronic Technology Co ltd
Current assignee: Jiangxi Fengyuda Electronic Technology Co ltd
Priority date: 2021-09-10
Filing date: 2021-09-10
Publication date: 2022-01-07
Anticipated expiration: 2031-09-10

Abstract

The utility model discloses a structure for preventing a silica gel key from being bonded, and relates to the technical field of key structures. When the device is used, a user presses the key body downwards, the key body drives the fixed plate to move downwards, the fixed plate drives the first sealing block, the second sealing block and the third sealing block to move, the third sealing block moves to the inside of the shell, the second sealing block moves to the position of the third sealing block, the first sealing block moves to the position of the second sealing block, and then the dust separation is made to be outside, the inside circuit structure can be polluted by the effectively solved dust, the device is short in service life, the device is simple in section, and the practicability is good.

Description

Prevent that silica gel button from gluing key structure

Technical Field

The utility model relates to the technical field of key structures, in particular to a structure for preventing a silica gel key from being stuck to the key.

Background

The silica gel key is a key product made of silica gel as a raw material, belongs to a product category of silica gel products, has the characteristics of excellent heat resistance, cold resistance, environmental resistance, electric insulation, fatigue resistance and the like, is a high-activity adsorption material, belongs to an amorphous substance, is insoluble in water and any solvent, is nontoxic and tasteless, has stable chemical properties, and does not react with any substance except strong alkali and hydrofluoric acid. Silica gel of various types forms different microporous structures due to different manufacturing methods, and silica gel keys are often used in electronic calculators, remote control systems, telephones, wireless telephones, computer keyboards, learning machine keys, cipher keys and digital product keys.

The button hole need be worn into to current device when the button for and leave the clearance between the button hole, the dust is easy to be followed this clearance and is entered inside, can pollute inside circuit structure, makes device life short, secondly, current button device's button is after pressing the friction for a long time, and the top of button can be sunken, makes pressing of button effect poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: need wear into the key hole in order to solve current device when the button for and leave the clearance between the key hole, the dust is inside from this clearance is entered easily, can pollute inside circuit structure, makes device life short, secondly, current button device's button is pressing down the friction back for a long time, and the top of button can be sunken, makes pressing down the poor problem of effect of button, provides one kind and prevents that the silica gel button from gluing the key structure.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a prevent that silica gel button from gluing key structure, includes the casing, the top of casing is provided with button body and button hole respectively, the surface of button body is provided with the wearing layer, the top of wearing layer is provided with the elastic rubber layer, the top on elastic rubber layer is provided with soft silica gel layer, the both sides of wearing layer all are provided with the fixed plate, the both sides of fixed plate are provided with first sealed piece, the sealed piece of second and the sealed piece of third respectively, the bottom intermediate junction of button body has a button post, the bottom of button post is provided with the foam-rubber cushion, the bottom both sides of button body are connected with the foam-rubber cushion through the spring, the circuit board is installed to the inside below of casing.

Preferably, the distances between the first sealing block, the second sealing block and the third sealing block are equal.

Preferably, the springs are arranged in two groups, and the two groups of springs are symmetrically arranged by taking the longitudinal axis of the key body as a center.

Preferably, the first sealing block, the second sealing block and the third sealing block are all in contact with the inner wall of the key hole.

Preferably, the sponge cushion is made of fiber materials.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the device is used, a user presses the key body downwards, the key body drives the fixing plate to move downwards, the fixing plate drives the first sealing block, the second sealing block and the third sealing block to move, the third sealing block moves into the shell, the second sealing block moves to the position of the third sealing block, the first sealing block moves to the position of the second sealing block, and therefore dust is blocked outside, the problem that the dust can pollute an internal circuit structure is effectively solved, the service life of the device is short, and the device is simple in section and good in practicability.

2. The key body is pressed downwards when the device is used, the wear-resisting coefficient of the key body can be increased under the action of the wear-resisting layer, the key body can be quickly reset under the action of the elastic rubber layer when the top of the key body is pressed, the phenomenon that the key body is sunken is avoided, the soft silica gel layer provides good pressing hand feeling for pressing, the problem that the top of the key body is sunken, and the pressing effect of the key is poor is effectively solved.

Drawings

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

FIG. 2 is a front view of the housing of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1A;

fig. 4 is a schematic view of the enlarged structure of the portion B in fig. 1 according to the present invention.

In the figure: 1. a housing; 2. a key body; 3. a key hole; 4. a wear layer; 5. an elastic rubber layer; 6. a soft silica gel layer; 7. a fixing plate; 8. a first seal block; 9. a second seal block; 10. a third seal block; 11. a key post; 12. a sponge cushion; 13. a spring; 14. a circuit board.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1-4, a structure for preventing a silicone key from being stuck on a key comprises a housing 1, a key body 2, a key hole 3, a wear-resistant layer 4, an elastic rubber layer 5, a soft silicone layer 6, a fixing plate 7, a first sealing block 8, a second sealing block 9, a third sealing block 10, a key post 11, a foam rubber pad 12, a spring 13 and a circuit board 14, wherein the top of the housing 1 is provided with the key body 2 and the key hole 3, the outer surface of the key body 2 is provided with the wear-resistant layer 4, the top of the wear-resistant layer 4 is provided with the elastic rubber layer 5, the top of the elastic rubber layer 5 is provided with the soft silicone layer 6, the two sides of the wear-resistant layer 4 are provided with the fixing plate 7, the two sides of the fixing plate 7 are provided with the first sealing block 8, the second sealing block 9 and the third sealing block 10, the middle of the bottom of the key body 2 is connected with the key post 11, the bottom of the key post 11 is provided with the foam rubber pad 12, the bottom both sides of button body 2 are connected with foam-rubber cushion 12 through spring 13, and circuit board 14 is installed to the inside below of casing 1.

Please refer to fig. 1-4, the distances between the first sealing block 8, the second sealing block 9 and the third sealing block 10 are equal, so as to facilitate the sealing of the key hole 3, two sets of springs 13 are provided, and the two sets of springs 13 are symmetrically arranged with the longitudinal axis of the key body 2 as the center, so as to facilitate the better resetting of the key body 2.

Please refer to fig. 1-4, the first sealing block 8, the second sealing block 9 and the third sealing block 10 are all in contact with the inner wall of the key hole 3 to prevent dust from entering the casing 1, and the foam-rubber cushion 12 is made of fiber material and has good flexibility and will not damage the circuit board 14.

The working principle is as follows: when the device is used, a user presses the key body 2 downwards, the key body 2 drives the fixing plate 7 to move downwards, the fixing plate drives 7 the first sealing block 8, the second sealing block 9 and the third sealing block 10 to move, the third sealing block 10 moves into the shell 1, the second sealing block 9 moves to the position of the third sealing block 10, the first sealing block 8 moves to the position of the second sealing block 9, so that dust is blocked outside, the key body 2 drives the key column 11 to press downwards, so that the key is pressed on the circuit board 14, then the key body 2 can be reset under the action of the spring 13, the key body 2 is pressed downwards, the wear-resisting coefficient of the key body 2 can be increased under the action of the wear-resisting layer 4, when the top of the key body 2 is pressed, the key body can be reset quickly under the action of the elastic rubber layer 5 after being pressed, the phenomenon of sunken can not appear in button body 2, and secondly, soft silica gel layer 6 is felt for pressing down to provide good pressing.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a prevent that silica gel button from gluing key structure, includes casing (1), its characterized in that: the top of the shell (1) is respectively provided with a key body (2) and a key hole (3), the outer surface of the key body (2) is provided with a wear-resistant layer (4), the top of the wear-resistant layer (4) is provided with an elastic rubber layer (5), the top of the elastic rubber layer (5) is provided with a soft silica gel layer (6), both sides of the wear-resistant layer (4) are provided with fixing plates (7), a first sealing block (8), a second sealing block (9) and a third sealing block (10) are respectively arranged at two sides of the fixing plate (7), the middle of the bottom of the key body (2) is connected with a key column (11), the bottom of the key column (11) is provided with a sponge cushion (12), the button comprises a button body (2), wherein two sides of the bottom of the button body (2) are connected with a spongy cushion (12) through springs (13), and a circuit board (14) is installed below the inside of a shell (1).

2. The structure of claim 1, wherein the silicone key is configured to prevent the silicone key from sticking to the key: the distances among the first sealing block (8), the second sealing block (9) and the third sealing block (10) are equal.

3. The structure of claim 1, wherein the silicone key is configured to prevent the silicone key from sticking to the key: the two groups of springs (13) are arranged, and the two groups of springs (13) are symmetrically arranged by taking the longitudinal axis of the key body (2) as a center.

4. The structure of claim 1, wherein the silicone key is configured to prevent the silicone key from sticking to the key: the first sealing block (8), the second sealing block (9) and the third sealing block (10) are all in contact with the inner wall of the key hole (3).

5. The structure of claim 1, wherein the silicone key is configured to prevent the silicone key from sticking to the key: the spongy cushion (12) is made of fiber materials.