Key structure and electronic equipment

Abstract

The utility model discloses a button structure and an electronic device, the button structure comprises a fixed part with a mounting groove and a movable button which can be slidably inserted in the mounting groove, the movable button is provided with at least one pressing column, the inner side wall of the mounting groove is integrally and fixedly provided with at least one elastic arm, the free end of each elastic arm is provided with a protruding point, and the protruding point is provided with a through hole. All the pressing columns abut against the protruding points of all the elastic arms in a one-to-one correspondence mode. When the movable key is pressed, the pressing column extrudes the abutted protruding points so that the corresponding elastic arms can elastically deform in the pressing direction. And when the movable key is loosened, all the elastic arms recover the elastic deformation, so that the convex points push the movable key to reset. According to the key structure, a hot melting piece or an elastic piece does not need to be additionally arranged, the number of related parts is reduced, the assembly process is shortened, the assembly process is optimized, and the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a key structure and electronic equipment. Background Art

[0002] Key structures are widely used in electronic devices, medical devices, etc., to quickly operate the power switch, volume control, unlock key, camera switch and other functions of the device. However, in order to ensure that the key structure can automatically reset by elasticity, the existing key structure needs to add hot melt parts made by hot melt process to the shell, or add additional auxiliary parts such as springs, which involves a large number of parts, a complex assembly process, and low assembly efficiency. Utility Model Content

[0003] The utility model aims to provide a key structure and an electronic device, which solves the technical problem of low assembly efficiency of the existing key structure.

[0004] To achieve the above-mentioned purpose, the utility model provides a key structure, including a fixing member having an installation slot and a movable key slidably inserted in the installation slot, the movable key having at least one pressing column, the inner side wall of the installation slot being integrally fixed with at least one elastic arm, a convex point being formed at the free end of each elastic arm, and all the pressing columns and the convex points of all the elastic arms being abutted against each other in a one-to-one correspondence;

[0005] When the movable key is pressed, the pressing column squeezes the opposing protrusions to cause the corresponding elastic arms to elastically deform in the pressing direction; when the movable key is released, all the elastic arms restore their elastic deformation to cause the protrusions to push the movable key to reset.

[0006] Preferably, the side edge of the movable button is integrally formed with a limit post, and the free end of the limit post is formed with a limit hook; the bottom of the installation groove is provided with a through limit hole, and the limit post passes through the limit hole until the limit hook abuts against the limit boss provided at the bottom of the installation groove.

[0007] Preferably, the pressing column is a hollow column, and the raised point is hemispherical; when the movable key is in a natural state, the center line of the pressing column is coaxial with the center line of the raised point.

[0008] Preferably, all the pressing columns are arranged along a linear line and are integrally arranged in the recessed groove of the movable key.

[0009] Preferably, vertically intersecting longitudinal ribs and transverse ribs are formed in the recessed groove, and all the pressing posts are integrally embedded in the longitudinal ribs.

[0010] Preferably, a longitudinal protrusion is provided at the center of the longitudinal rib, a transverse protrusion is formed at the center of the transverse rib, the longitudinal protrusion and the transverse protrusion intersect to form a cross-shaped structure, and the height of the cross-shaped structure is greater than the thickness of the pressing column.

[0011] Preferably, a limit support is fixedly provided at the bottom of the installation groove; when the movable key moves down to the extreme position, the side edge of the movable key abuts against the limit support.

[0012] Preferably, the fixed end of the elastic arm is integrally formed with a fixing plate, the fixing plate is fixed to the inner wall of the installation slot, the elastic arm and the fixing plate form a mountain-shaped structure, and the fixing plate is arranged higher than the bottom of the installation slot.

[0013] Preferably, a support leg abutting against the bottom of the installation slot is integrally and vertically provided at the bottom of the fixing plate.

[0014] The utility model also provides an electronic device, comprising the key structure.

[0015] Compared with the background technology, the utility model optimizes the key structure, adds a pressing column to the movable key, adds an elastic arm in the installation groove of the fixing part, and forms a protrusion at the free end of the elastic arm, and all the pressing columns and the protrusions of all the elastic arms are corresponding to each other. When the movable key is pressed, the pressing column squeezes the protrusions that are against each other so that the corresponding elastic arm undergoes elastic deformation in the pressing direction; when the movable key is released, all the elastic arms restore the elastic deformation so that the protrusions push the movable key to reset. The key structure of the utility model does not require the addition of additional hot melt parts or elastic parts, the number of parts involved is reduced, the assembly process is shortened, the assembly process is optimized, and the assembly efficiency is improved.

[0016] The electronic equipment provided by the utility model comprises the above-mentioned key structure and has the same beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 A longitudinal cross-sectional view of a key structure provided by an embodiment of the utility model;

[0019] Figure 2 A transverse cross-sectional view of a key structure provided by an embodiment of the utility model;

[0020] Figure 3 for Figure 1 Structural diagram of the middle fixing and its mounting slot;

[0021] Figure 4 for Figure 1Structure diagram of the active buttons in .

[0022] The reference numerals are as follows:

[0023] A fixing part 1 and a movable button 2;

[0024] A mounting groove 11, an elastic arm 12 and a limiting boss 13;

[0025] A limit clamping hole 111 and a limit support 112;

[0026] The raised point 121, the fixing plate 122 and the supporting leg 123;

[0027] A pressing column 21, a limiting clamping column 22, a recessed groove 23, a longitudinal rib 24 and a transverse rib 25;

[0028] Limiting hook 221;

[0029] Longitudinal protrusion 241;

[0030] Lateral protrusion 251. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] First, it should be noted that the longitudinal direction in the text refers to a length direction parallel to the movable key 2 , and the transverse direction refers to a width direction parallel to the movable key 2 .

[0034] The utility model embodiment discloses a key structure, as shown in the attached Figures 1 to 4 As shown, it includes a fixing member 1 and a movable key 2, and the fixing member 1 is a part of the electronic device. The fixing member 1 has a mounting groove 11, and the movable key 2 can be slidably inserted in the mounting groove 11, so that the movable key 2 can make reciprocating linear movements relative to the fixing member 1 along the depth direction of the mounting groove 11. The mounting groove 11 can be a rectangular groove, and the movable key 2 is a rectangular key. The depth of the mounting groove 11 is greater than the thickness of the side edge of the movable key 2, providing conditions for the movable key 2 to move relative to the mounting groove 11.

[0035] The movable button 2 has at least one pressing column 21, and the inner side wall of the installation groove 11 is integrally fixed with at least one elastic arm 12. A protrusion 121 is formed at the free end of each elastic arm 12, and all the pressing columns 21 correspond to and abut against the protrusions 121 of all the elastic arms 12.

[0036] When the movable button 2 is pressed, the pressing column 21 squeezes the convex point 121 against it, so that the corresponding elastic arm 12 elastically deforms in the pressing direction to achieve the triggering purpose. When the movable button 2 is released, all the elastic arms 12 restore their elastic deformation, so that the convex point 121 pushes the movable button 2 to reset.

[0037] In summary, the utility model optimizes the key structure, adds a pressing column 21 to the movable key 2, and adds an elastic arm 12 in the installation groove 11 of the fixing member 1. The pressing column 21 is abutted against the protruding point 121 of the elastic arm 12, so that the movable key 2 can automatically reset by relying on the elastic force of the elastic arm 12 after pressing the protruding point 121. There is no need to add additional hot-melt parts or elastic parts, the number of parts involved is reduced, the assembly process is shortened, the assembly process is optimized, and the assembly efficiency is improved.

[0038] The side edge of the movable key 2 is integrally formed with a limit clamping column 22, which extends along the thickness direction of the movable key 2, and the free end of the limit clamping column 22 forms a limit clamping hook 221. The bottom of the installation groove 11 is provided with a through limit clamping hole 111, and the limit clamping column 22 passes through the limit clamping hole 111 until the limit clamping hook 221 abuts against the limit boss 13 provided at the bottom of the installation groove 11, so that the movable key 2 can be limited from being separated from the fixing member 1 when moving upward, reducing the risk of failure of the key structure and improving the working reliability of the key structure. Specifically, two limit clamping columns 22 are symmetrically provided on the two long side edges of the movable key 2, and the length of the limit clamping column 22 can be adaptively adjusted according to the downward movement of the movable key 2, which is not specifically limited here.

[0039] The pressing column 21 is a hollow column, and the protruding point 121 is a hemispherical shape, so that the top part of the protruding point 121 is sunken in the pressing column 21, which can compensate for the assembly error to a certain extent and ensure that the pressing column 21 and the protruding point 121 are in reliable contact. When the movable key 2 is in a natural state, the center line of the pressing column 21 is coaxial with the center line of the protruding point 121, and the elastic arm 12 is in a horizontal state. Of course, the structure of the pressing column 21 and the protruding point 121 is not limited to this.

[0040] All the pressing columns 21 are arranged linearly and are integrally arranged in the recessed groove 23 of the movable key 2, ensuring that the movable key 2 uniformly applies downward pressure to each elastic arm 12. Specifically, the recessed groove 23 of the movable key 2 is provided with two pressing columns 21, and correspondingly, an elastic arm 12 is symmetrically arranged on each of the two opposite sides of the mounting groove 11. The number of both the pressing columns 21 and the elastic arm 12 is not limited to two, and can be adjusted according to the size and structure of the movable key 2, and is not specifically limited here.

[0041] A vertically intersecting longitudinal rib 24 and transverse rib 25 are formed in the recessed groove 23, wherein the longitudinal rib 24 extends along the length direction of the movable key 2, and the transverse rib 25 extends along the width direction of the movable key 2. The longitudinal rib 24 and the transverse rib 25 are both reinforcing ribs for improving the mechanical strength of the movable key 2. All the pressing columns 21 are integrally embedded in the longitudinal rib 24 to improve the connection strength between the pressing column 21 and the movable key 2 and reduce the risk of accidental breakage of the pressing column 21.

[0042] A longitudinal protrusion 241 is provided at the center of the longitudinal rib 24, and a transverse protrusion 251 is formed at the center of the transverse rib 25. The longitudinal protrusion 241 and the transverse protrusion 251 intersect to form a cross-shaped structure, and the height of the cross-shaped structure is greater than the thickness of the pressing column 21. In this way, the mechanical strength of the movable key 2 can be further improved by increasing the width of the longitudinal rib 24 and the transverse rib 25 as much as possible without affecting the moving stroke of the pressing column 21. Of course, the arrangement of the reinforcing ribs in the movable key 2 is not limited to this.

[0043] A limit support 112 is fixedly arranged at the bottom of the installation groove 11. When the movable key 2 moves down to the limit position, the side edge of the movable key 2 abuts against the limit support 112, so that the limit support 112 can limit the moving position of the movable key 2, thereby preventing the movable key 2 from moving and breaking the elastic arm 12. The limit support 112 can be specifically U-shaped and symmetrically arranged at two opposite sides of the installation groove 11, and both ends of the limit support 112 are integrally fixed to the bottom of the installation groove 11. Of course, the structure of the limit support 112 is not limited thereto, and can also be a rectangular block, for example.

[0044] The fixed end of the elastic arm 12 is integrally formed with a fixing plate 122, and the fixing plate 122 is fixedly arranged on the inner side wall of the mounting groove 11. The elastic arm 12 and the fixing plate 122 form a mountain-shaped structure, so that the fixing plate 122 can provide sufficient support for the elastic arm 12. The fixing plate 122 is arranged higher than the bottom of the mounting groove 11, so that there is a certain space between the fixing plate 122 and the bottom of the mounting groove 11 for the elastic arm 12 to bend in the pressing direction. Of course, the fixing method of the elastic arm 12 is not limited to this. For example, the elastic arm 12 can also be directly fixed vertically on the inner side wall of the mounting groove 11, which does not affect the purpose of the utility model. The bottom of the fixing plate 122 is integrally vertically provided with a support leg 123 that is against the bottom of the mounting groove 11, so that the support force provided by the fixing plate 122 to the elastic arm 12 is further increased, and the risk of the fixing plate 122 being separated from the inner side wall of the mounting groove 11 due to excessive pressure is reduced, thereby ensuring that the fixed end of the elastic arm 12 is more firmly fixed.

[0045] The embodiment of the utility model also discloses an electronic device, comprising the above-mentioned key structure, which has the same beneficial effects.

[0046] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0047] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A key structure, characterized in that: The invention comprises a fixing member (1) having a mounting groove (11) and a movable button (2) slidably inserted in the mounting groove (11), wherein the movable button (2) has at least one pressing column (21), and the inner side wall of the mounting groove (11) is integrally fixed with at least one elastic arm (12), and a protruding point (121) is formed at the free end of each elastic arm (12), and all the pressing columns (21) and the protruding points (121) of all the elastic arms (12) are in one-to-one correspondence with each other. When the movable button (2) is pressed, the pressing column (21) presses the opposing raised point (121) to cause the corresponding elastic arm (12) to undergo elastic deformation in the pressing direction; when the movable button (2) is released, all the elastic arms (12) recover their elastic deformation to cause the raised point (121) to push the movable button (2) back to its original position.

2. The key structure according to claim 1, characterized in that: A limiting clamping column (22) is integrally formed on the side edge of the movable button (2), and a limiting clamping hook (221) is formed on the free end of the limiting clamping column (22); a through limiting clamping hole (111) is provided at the bottom of the installation slot (11), and the limiting clamping column (22) passes through the limiting clamping hole (111) until the limiting clamping hook (221) abuts against a limiting boss (13) provided at the bottom of the installation slot (11).

3. The key structure according to claim 1, characterized in that: The pressing column (21) is a hollow column, and the raised point (121) is hemispherical; when the movable button (2) is in a natural state, the center line of the pressing column (21) is coaxial with the center line of the raised point (121).

4. The key structure according to any one of claims 1 to 3, characterized in that: All the pressing columns (21) are arranged linearly and are integrally arranged in the recessed groove (23) of the movable button (2).

5. The key structure according to claim 4, characterized in that: The recessed groove (23) is provided with vertically intersecting longitudinal ribs (24) and transverse ribs (25), and all the pressing columns (21) are integrally embedded in the longitudinal ribs (24).

6. The key structure according to claim 5, characterized in that: A longitudinal protrusion (241) is provided at the center of the longitudinal rib (24), and a transverse protrusion (251) is formed at the center of the transverse rib (25). The longitudinal protrusion (241) and the transverse protrusion (251) intersect to form a cross-shaped structure, and the height of the cross-shaped structure is greater than the thickness of the pressing column (21).

7. The key structure according to any one of claims 1 to 3, characterized in that: A limit support (112) is fixedly provided at the bottom of the installation groove (11); when the movable button (2) moves downward to the limit position, the side edge of the movable button (2) abuts against the limit support (112).

8. The key structure according to any one of claims 1 to 3, characterized in that: The fixed end of the elastic arm (12) is integrally formed with a fixing plate (122), and the fixing plate (122) is fixed to the inner side wall of the installation groove (11). The elastic arm (12) and the fixing plate (122) form a mountain-shaped structure, and the fixing plate (122) is arranged higher than the bottom of the installation groove (11).

9. The key structure according to claim 8, characterized in that: The bottom of the fixing plate (122) is integrally and vertically provided with a supporting leg (123) that abuts against the bottom of the installation groove (11).

10. An electronic device, characterized in that: The key structure comprises the key structure according to any one of claims 1 to 9.

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