CN216528536U

CN216528536U - Key mounting structure and terminal

Info

Publication number: CN216528536U
Application number: CN202220131922.6U
Authority: CN
Inventors: 王郑权
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-05-13
Anticipated expiration: 2032-01-18

Abstract

The embodiment of the utility model provides a key mounting structure and a terminal. This button mounting structure includes: the key comprises a middle frame, a key, a stop piece and a sealing piece, wherein the middle frame is provided with a mounting hole; the key comprises a key rod and a keycap which are connected, and the key rod is slidably matched in the mounting hole; the stop piece is connected with the other end of the key; the seal member is connected to the key bar and is compressed between the key bar and the wall surface of the mounting hole. The key mounting structure provided by the embodiment of the utility model has the advantage of good waterproof performance.

Description

Key mounting structure and terminal

Technical Field

The utility model relates to the technical field of electronic equipment, in particular to a key mounting structure and a terminal.

Background

Along with the development of smart phones, the popularization and application scenes of smart phones are increasing, how to improve the waterproof function and meet the use requirements of users in liquid environments such as water is one of the development directions of smart phones at present. How to ensure the waterproof performance of the mechanical keys on the mobile phone, such as the power supply key, becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, embodiments of the present disclosure provide a key mounting structure and a terminal.

The key mounting structure according to an embodiment of the present invention includes:

the middle frame is provided with a mounting hole;

the key comprises a key rod and a keycap which are connected, and the key rod is matched in the mounting hole in a sliding manner;

the stop piece is connected with the other end of the key; and

and the sealing element is connected with the key rod and is pressed between the key rod and the wall surface of the mounting hole.

Therefore, the key mounting structure provided by the embodiment of the utility model has the advantage of good waterproof performance.

In some embodiments, the key mounting structure further comprises an elastic member disposed between the key cap and the middle frame and tensioning the key cap outward along the axis of the mounting hole.

In some embodiments, the middle frame is provided with a guide groove communicating with the mounting hole, and at least a part of the keycap is slidably fitted in the guide groove.

In some embodiments, the sealing member includes at least one sealing ring, the key rod is provided with an annular groove, the sealing ring is sleeved in the annular groove, and the sealing ring is connected with the mounting hole in a sealing manner.

In some embodiments, a blind guide hole is formed in one side, facing the middle frame, of the keycap, a guide pillar is arranged on the outer side of the middle frame, the axis of the guide pillar is collinear with the axis of the mounting hole, and the guide pillar is in clearance fit with the blind guide hole.

In some embodiments, the elastic member includes a spring, and an axial direction of the spring coincides with an axial direction of the mounting hole.

In some embodiments, the number of the springs is multiple, and the springs are distributed at intervals.

In some embodiments, one of the key cap and the middle frame is provided with a positioning column, the other of the key cap and the middle frame is provided with a positioning groove, at least part of the spring is located in the positioning groove, a first end of the spring abuts against the surface of the positioning groove, and a second end of the spring is sleeved on the positioning column.

In some embodiments, a card slot is provided on the key lever, and the stopper includes a collar that fits within the card slot.

The utility model also provides a terminal which comprises the key installation structure.

The key mounting structure provided by the embodiment of the utility model has the advantage of good waterproof performance.

Drawings

Fig. 1 is a schematic view of a key mounting structure according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a sectional view of a key mounting structure according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a sectional view of a key mounting structure according to an embodiment of the present invention.

Reference numerals:

a key mounting structure 100;

the device comprises a middle frame 1, a mounting hole 11, a guide groove 12, a guide post 13 and a positioning groove 14;

the key 2, the key rod 21, the annular groove 211, the clamping groove 212, the key cap 22, the guide blind hole 221 and the positioning column 111;

stop 3, collar 31;

seal 4, gasket 41;

elastic member 5, spring 51.

Detailed Description

Reference will now be made in detail to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the present disclosure, and should not be construed as limiting the present disclosure.

The key installation structure 100 according to the embodiment of the present invention is described below with reference to the accompanying drawings, and as shown in fig. 1 to 3, the key installation structure 100 according to the embodiment of the present invention includes a center frame 1, a key 2, a stopper 3, and a sealing member 4.

The middle frame 1 is provided with a mounting hole 11. The key 2 includes a key rod 21 and a key cap 22 connected, and the key rod 21 is slidably fitted in the mounting hole 11. Wherein, the keycap 22 is connected with the key rod 21 and is positioned outside the middle frame 1. For example, the mounting hole 11 and the key lever 21 each extend in the up-down direction, the key lever 21 is slidably mounted in the mounting hole 11 in the up-down direction, and the key top 22 is located above the key lever 21 in the up-down direction as indicated by the arrow in fig. 1.

The stopper 3 is connected to the other end of the key 2. Specifically, the stopper 3 is connected to an end of the key lever 21 remote from the key cap 22 and is located inside the center frame 1. That is, the stopper 3 is disposed opposite to the key cap 22, and the stopper 3 cannot pass through the mounting hole 11 so as to prevent the key lever 21 from being separated from the middle frame 1. For example, the stopper 3 is connected to the lower end portion of the key lever 21, thereby preventing the key lever 21 from moving upward off the middle frame 1.

The seal 4 is connected to the key lever 21 and is pressed between the key lever 21 and the wall surface of the mounting hole 11. Specifically, the inner surface of the seal member 4 is pressed against the wall surface of the key lever 21, and the outer surface of the seal member 4 is pressed against the wall surface of the mounting hole 11. Thus, the seal member 4 can fill the gap between the key lever 21 and the mounting hole 11, thereby preventing the liquid from entering the mounting hole 11 and then passing through the gap between the key lever 21 and the mounting hole 11 to enter the inside of the center frame 1, that is, the seal member 4 can prevent the liquid from entering the inside of the center frame 1 from the outside of the center frame 1.

The key mounting structure 100 of the embodiment of the present invention makes the sealing member 4 effectively prevent liquid from entering from the outside of the center frame 1 to the inside of the center frame 1, i.e., prevent liquid from passing through the gap between the key bar 21 and the wall surface of the mounting hole 11, by pressing the sealing member 4 between the key bar 21 and the wall surface of the mounting hole 11. That is, the key mounting structure 100 has a waterproof property, so that it is difficult for liquid to pass through the key mounting structure 100 to damage other components, so that the device of the key mounting structure 100 according to the embodiment of the present invention has high safety and a good waterproof property.

Therefore, the key mounting structure 100 according to the embodiment of the present invention has an advantage of good waterproof performance.

In some embodiments, the key mounting structure 100 further comprises an elastic member 5, wherein the elastic member 5 is disposed between the key cap 22 and the middle frame 1, and tensions the key cap 22 outwards along the axis of the mounting hole 11. Therefore, under the action of the elastic piece 5, the relative fixation between the key 5 and the middle frame 1 when the key is not acted by external force is effectively ensured, namely, the key rod 21 is not easy to shake to cause the change of the gap between the key rod 21 and the wall surface of the mounting hole 11, and the sealing piece 4 is further effectively ensured to seal the gap between the key rod 21 and the wall surface of the mounting hole 11.

As shown in fig. 2 and 3, in some embodiments, the key lever 21 is a round lever, the mounting hole 11 is a round hole, and the key lever 21 is clearance-fitted to the mounting hole 11. Therefore, the key rod 21 can be conveniently and slidably matched in the mounting hole 11, the key rod 21 is enabled to be less prone to shaking in the radial direction of the mounting hole 11 under the action of the elastic piece 5, and waterproof sealing performance is further guaranteed. And the key rod 21 is in clearance fit with the mounting hole 11, so that a clearance formed between the key rod and the mounting hole is smaller, and the waterproof performance is higher. The shapes of the key rod 21 and the mounting hole 11 are matched, and the shapes of the key rod 21 and the mounting hole 11 can be adjusted according to actual requirements. For example, the key lever 21 may be a circular rod extending in the up-down direction, and the mounting hole 11 corresponds to a circular hole extending in the up-down direction. It should be noted that the embodiments of the present invention do not specifically limit the shapes of the key lever 21 and the mounting hole 11.

As shown in fig. 2, in some embodiments, the outer side of the middle frame 1 is provided with a guide groove 12 communicating with the mounting hole 11, and at least a portion of the key cap 22 is slidably fitted in the guide groove 12. Therefore, the guide groove 12 can guide and limit the keycap 22, so that the keycap 22 can move along the preset direction. For example, the upper side of the middle frame 1 is provided with a guide groove 12, and the guide groove 12 is positioned above the mounting hole 11 so that the key top 22 can move in the up-down direction.

As shown in fig. 2 and 3, in some embodiments, the sealing member 4 includes at least one sealing ring 41, and the key rod 21 is provided with an annular groove 211, and the sealing ring 41 is fitted in the annular groove 211. When the number of the seal rings 41 is plural, the plural seal rings 41 are arranged in order along the longitudinal direction of the key lever 21. The plurality of seal rings 41 are fitted in the annular groove 211 so that the seal rings 41 can move together with the key shaft 21, and the plurality of seal rings 41 can further increase the waterproof effect of the key mounting structure 100. Specifically, the plurality of seal rings 41 are fitted in the annular groove 211 and move together with the key bar 21, and each of the plurality of seal rings 41 is pressed tightly between the annular groove 211 and the wall surface of the mounting hole 11. For example, the annular groove 211 extends in the up-down direction, the number of the seal rings 41 is 3, and 3 seal rings 41 are sequentially arranged in the up-down direction and are sleeved in the annular groove 211.

As shown in fig. 2 and 3, in some embodiments, the keycap 22 is provided with a blind guiding hole 221 on the side facing the middle frame 1, the outer side of the middle frame 1 is provided with a guide post 13, the axis of the guide post 13 is collinear with the axis of the mounting hole 11, and the guide post 13 is in clearance fit with the blind guiding hole 221. Therefore, the keycap 22 and the middle frame 1 can slide more stably, and the keycap 22 can be prevented from shifting in the sliding process. For example, the lower side of the key cap 22 is provided with a blind guiding hole 221 with a downward opening, and the upper side of the middle frame 1 is provided with a guiding post 13.

As shown in fig. 2, in some embodiments, the elastic member 5 includes a spring 51, and an axial direction of the spring 51 coincides with an axial direction of the mounting hole 11. Therefore, the spring 51 can be pressed outwards towards the keycap 22 along the axial direction of the mounting hole 11, that is, the key 2 can move outwards along the axial direction of the mounting hole 11 under the action of the spring 51, and the key 2 is further prevented from shaking. For example, the axial direction of the spring 51 is the vertical direction.

In some embodiments, the number of the springs 51 is plural, and the plural springs 51 are distributed at intervals. For example: the plurality of springs 51 are equally spaced around the circumference of the mounting hole 11, so that the elasticity of the elastic member 5 can be enhanced, and the axial consistency of the key lever 21 with the axial direction of the mounting hole 11 can be ensured.

As shown in fig. 3, in some embodiments, one of the key cap 22 and the middle frame 1 is provided with a positioning post 111, the other of the key cap 22 and the middle frame 1 is provided with a positioning slot 14, a first end of the spring 51 is fitted in the positioning slot 14, and a second end of the spring 51 is sleeved on the positioning post 111. Therefore, the positioning column 111 and the positioning groove 14 are matched to limit the spring 51, so that the spring 51 is stably installed. Specifically, two positioning columns 111 and two positioning grooves 14 are provided, each positioning column 111 is matched with one positioning groove 14, the two positioning columns 111 are located on two sides of the mounting hole 11, and the two positioning grooves 14 are located on two sides of the mounting hole 11. For example, the middle frame 1 is provided with a positioning column 111 extending in the vertical direction, the lower side of the key cap 2 is provided with a positioning groove 14, the upper end of the spring 51 is installed in the positioning groove 14, and the lower end of the spring 51 is sleeved on the positioning column 111.

As shown in fig. 2 and 3, in some embodiments, a card slot 212 is provided on the key lever 21, and the stopper 3 includes a collar 31, and the collar 31 is fitted in the card slot 212. Specifically, the collar 31 is engaged in the card slot 212 so as to prevent the collar 31 from coming off the key lever 21, and the collar 31 is located inside the middle frame 1 so as to prevent the key lever 21 from coming off the middle frame 1.

In some embodiments, keys 2 include a power key and/or a volume key. I.e. the keys 2 can be used as power keys to prevent liquid from entering the inside of the middle frame 1 from the power keys. The keys 2 may also be used as volume keys, thereby placing liquid and volume keys inside the middle frame 1.

The present invention also provides a terminal, and the terminal according to the embodiment of the present invention includes the key installation structure 100 according to the embodiment of the present invention. The terminal comprises a mobile phone and a tablet.

Therefore, the terminal provided by the embodiment of the utility model has the advantage of good waterproof performance.

In the description of the present disclosure, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present disclosure and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the present disclosure.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the context of the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the context of the present invention can be understood by those of ordinary skill in the art as appropriate.

In this summary, unless explicitly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacted with the first and second features, or indirectly contacted with the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In this summary, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present disclosure have been shown and described above, it should be understood that the above embodiments are exemplary and not to be construed as limiting the present disclosure, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure.

Claims

1. A key mounting structure characterized by comprising:

the middle frame is provided with a mounting hole;

a stopper connected with the key lever; and

2. The key mounting structure according to claim 1, further comprising:

the elastic piece is arranged between the keycap and the middle frame and tensions the keycap outwards along the axis of the mounting hole.

3. The key mounting structure according to claim 2, wherein the center frame is provided with a guide groove communicating with the mounting hole, and at least a part of the key cap is slidably fitted in the guide groove.

4. The key mounting structure according to claim 2, wherein the sealing member includes at least one sealing ring, the key rod is provided with an annular groove, the sealing ring is sleeved in the annular groove, and the sealing ring is in sealing connection with the mounting hole.

5. The key mounting structure of claim 2, wherein the key cap has a blind guiding hole on a side facing the middle frame, and a guide post is disposed on an outer side of the middle frame, an axis of the guide post is collinear with an axis of the mounting hole, and the guide post is in clearance fit with the blind guiding hole.

6. The key mounting structure according to claim 2, wherein the elastic member includes a spring, and an axial direction of the spring coincides with an axial direction of the mounting hole.

7. The key mounting structure according to claim 6, wherein the number of the springs is plural, and the plural springs are spaced apart from each other.

8. The key mounting structure according to claim 6, wherein one of the key cap and the middle frame is provided with a positioning post, the other of the key cap and the middle frame is provided with a positioning groove, at least a portion of the spring is located in the positioning groove, a first end of the spring abuts against a surface of the positioning groove, and a second end of the spring is sleeved on the positioning post.

9. The key mounting structure according to claim 1, wherein a card slot is provided on the key lever, and the stopper includes a collar fitted in the card slot.

10. A terminal characterized by comprising the key mounting structure according to any one of claims 1 to 9.