Keyboard structure convenient to assemble

Abstract

A first positioning structure is arranged on the outer wall of the side wall of a lower cover, a supporting piece is arranged on the inner wall of the side wall of the lower cover, a shaft positioning plate is arranged on the inner side of the side wall and placed on the supporting piece, a second positioning structure matched with the first positioning structure is arranged on the inner wall of one side wall of an upper cover, and the other side wall of the upper cover is matched with the upper end portion of the shaft positioning plate. According to the utility model, the shaft positioning plate on which the circuit board and the plurality of key assemblies are fixed can be conveniently erected on the lower cover and is fixed on the lower cover through the upper cover, the assembly operation is convenient and fast, the vibration and noise of the shaft positioning plate and the circuit board when the keys are knocked can be slowed down and reduced, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical keyboard technical field, especially keyboard structure convenient to assemble. BACKGROUND

[0002] Keyboard is the important tool of people's daily work study, and the use frequency is very high. At present, the keyboard on the market is mostly assembled by upper cover, lower cover, circuit board, key positioning plate and multiple key assemblies, needs to be buckled with the lower cover when assembling the upper cover, also needs to avoid multiple key assemblies, and the assembly process is more complex, and the assembly efficiency is difficult to improve. SUMMARY

[0003] In view of the problems existing in the prior art, the utility model provides keyboard structure convenient to assemble, can conveniently erect the shaft positioning plate fixed with circuit board and a plurality of key assemblies on the lower cover, and fixes it on the lower cover through the upper cover, and the assembly operation is convenient and fast, and the vibration and noise of the shaft positioning plate and circuit board when knocking the key can be slowed down and reduced, and the use experience of the user is improved.

[0004] To solve the above technical problems, a technical scheme adopted by the utility model is as follows:

[0005] Keyboard structure convenient to assemble, including upper cover, lower cover, circuit board, shaft positioning plate and a plurality of key assemblies, the circuit board is erected on the lower cover and is arranged below the shaft positioning plate, a plurality of the key assemblies are detachably fixed on the shaft positioning plate, and movable keys are arranged on each key assembly.

[0006] The lower cover includes bottom wall and lower side wall extending along the contour edge and towards the upper cover, the outer wall of the lower side wall is arranged with a plurality of first positioning structures arranged in a straight line along the extension direction, the inner wall of the lower side wall is arranged with a plurality of supporting pieces along the extension direction, and the upper end of a plurality of supporting pieces is coplanar.

[0007] The shaft positioning plate is matched and embedded on the lower side wall and placed on a plurality of supporting pieces, and the upper end thereof is formed with a plurality of second positioning protrusions extending in the same direction along the contour of the shaft positioning plate.

[0008] The upper cover is covered above the connection between the lower cover and the shaft positioning plate, the cross section of the upper cover is inverted U-shaped structure, one side wall of the upper cover extends to the outer side of the lower side wall, and a plurality of second positioning structures matched with the first positioning structures are formed on the inner wall of the upper cover, and the other side wall of the upper cover extends to the outer side of the side wall of the second positioning protrusion towards the key assembly.

[0009] As a further elaboration of the above technical scheme:

[0010] The first positioning structure and the second positioning structure are a clamping groove or a clamping protrusion.

[0011] In the above technical solution, each support comprises a plurality of rib plates, and the plurality of rib plates intersect to form a frame structure, one end of which extends to the lower side wall and the other end of which extends to the bottom wall.

[0012] In the above technical solution, a plurality of reinforcing structures are arranged on the inner wall of the bottom end of the upper cover, and a plurality of supporting structures capable of matching the reinforcing structures are arranged on the shaft positioning plate.

[0013] In the above technical solution, a plurality of damping members are arranged between the second positioning protrusions and the lower side wall, and the upper end of each damping member extends to the upper end inner wall of the upper cover.

[0014] In the above technical solution, the upper and lower ends of the circuit board are provided with a sound-absorbing member, and the upper end of one sound-absorbing member abuts against the lower end of the shaft positioning plate, and the lower end of the other sound-absorbing member abuts against the upper end of the inner wall of the lower cover.

[0015] In the above technical solution, the lower end of the shaft positioning plate is provided with a fifth positioning protrusion around the sound-absorbing member at the lower end, and the lower end of each fifth positioning protrusion extends between the circuit board / sound-absorbing member and the support.

[0016] Compared with the prior art, the beneficial effects of the utility model lie in that: by arranging the support on the lower cover, the shaft positioning plate on which the circuit board and a plurality of key assemblies are fixed can be conveniently erected on the lower cover, by arranging the cross section of the upper cover as an inverted U-shaped structure and arranging the second positioning structure on one side wall of the upper cover which is matched with the first positioning structure on the bottom cover, the upper cover can be directly clamped on the lower cover to simultaneously clamp the key module on the lower cover, and the assembly operation is convenient and fast; by arranging the reinforcing structure on the upper cover and the supporting structure on the shaft positioning plate, the strength of the upper cover and the support of the shaft positioning plate on the upper cover can be strengthened, the deformation of the upper cover can be avoided or slowed down, the stability of the upper cover assembly can be ensured, the stability of the key module on the lower cover can be ensured, and the normal service life of the keyboard can be ensured; by arranging the damping member and the sound-absorbing member, the vibration and noise of the shaft positioning plate and the circuit board when the key is struck can be slowed down and reduced, and the use experience of the user can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a sectional view of the embodiment;

[0018] Figure 2 is Figure 1 an enlarged view of part A in figure 6;

[0019] Figure 3is a structural schematic view of the lower cover in the embodiment;

[0020] Figure 4 is Figure 3 is an enlarged view of the B part in the embodiment;

[0021] Figure 5 is a partial exploded structural schematic view of the shaft positioning plate and the damping member in the embodiment;

[0022] Figure 6 is Figure 5 is an enlarged view of the C part in the embodiment.

[0023] Figure 7 is a structural schematic view of the upper cover in the embodiment;

[0024] Figure 8 is Figure 7 is an enlarged view of the D part in the embodiment;

[0025] In the figure: 10, upper cover; 11, second positioning structure; 12, reinforcing structure; 20, lower cover; 21, bottom wall; 22, lower side wall; 23, first positioning structure; 24, support member; 30, circuit board; 40, shaft positioning plate; 41, second positioning protrusion; 42, support structure; 43, fifth positioning protrusion; 50, key assembly; 60, damping member; 70, silencing member. DETAILED DESCRIPTION

[0026] The utility model will be made further detailed description in combination with the drawings.

[0027] The embodiments described with reference to the drawings are exemplary and are intended to be used for explaining the present application and cannot be understood as a limitation of the present application. In the description of the present application, 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" and the like indicate the orientation or positional relationship described based on the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application. In addition, the terms "first", "second" are only for the purpose of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, or can be connected between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature with respect to the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the "upper", "above" and "on" of the first feature with respect to the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature with respect to the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0028] As Figures 1-2 shown, the keyboard structure convenient to assemble includes an upper cover 10, a lower cover 20, a circuit board 30, an axis positioning plate 40 and a plurality of key assemblies 50, the circuit board 30 is arranged on the lower cover 20 and below the axis positioning plate 30, a plurality of key assemblies 50 are detachably and fixedly arranged on the axis positioning plate 50, and each key assembly 50 is provided with a movable key.

[0029] As Figure 3As shown, the lower cover 20 comprises a bottom wall 21 and a lower side wall 22 extending along the contour edge thereof and towards the upper cover 10, the outer wall of the lower side wall 22 is arranged with a plurality of first positioning structures 23 in linear arrangement along the extension direction thereof, and the inner wall of the lower side wall 22 is arranged with a plurality of support members 24 in extension direction thereof, the upper ends of the plurality of support members 24 are coplanar, the first positioning structures 23 and the second positioning structures 11 are clamping grooves or clamping protrusions. In the embodiment, the first positioning structures 23 are clamping grooves and the contour edge thereof is smoothly connected with the lower side wall 22, and the second positioning structures 11 are protrusions.

[0030] As shown in the figures, Figure 4 each of the support members 24 comprises a plurality of rib plates intersecting to form a frame structure, one end of which extends onto the lower side wall 22 and the other end of which extends onto the bottom wall 21.

[0031] As shown in the figures, Figure 5 the shaft positioning plate 40 is fitted and embedded on the lower side wall 22 and placed on the plurality of support members 24, and the upper end thereof is formed with a plurality of second positioning protrusions 41 extending in the same direction along the contour of the shaft positioning plate 40.

[0032] As shown in the figures, Figure 6 the plurality of second positioning protrusions 41 and the lower side wall 22 are further provided with a damping member 60, and the upper end of each damping member 60 extends onto the inner wall of the upper end of the upper cover 10. In the embodiment, the damping member 60 is a damping washer, which is embedded in the clamping groove on the edge of the shaft positioning plate 40, and the upper and lower ends thereof abut against the inner wall of the upper cover 10 and the upper end of the support member 24, respectively. In application, the damping member 60 can be provided in an integrally formed U-shaped or O-shaped structure to be sleeved on the plate edge of the shaft positioning plate 40, or it can be provided in a split structure and placed on the upper and lower ends of the plate edge of the shaft positioning plate 40, respectively, to reduce the pressure borne by the shaft positioning plate 40 when the key is struck and to reduce the downward displacement stroke towards the circuit board 30, thereby achieving the purpose of reducing the force and noise of the key striking the circuit board when the key is struck.

[0033] As shown in the figures, Figures 7-8 the upper cover 10 is provided above the connection between the lower cover 20 and the shaft positioning plate 40, and the cross section of the upper cover 10 is an inverted U-shaped structure, one side wall of which extends to the outer side of the lower side wall 22 and the inner wall of which is formed with a plurality of second positioning structures 11 adapted to the first positioning structures 23 one by one, and the other side wall of which extends to the outer side of the side wall of the second positioning protrusions 41 towards the key assembly 50,

[0034] As shown in the figures, Figure 6 , 8As shown, in order to strengthen the upper cover and avoid or slow down its deformation, a number of reinforcing structures 12 are provided on the inner wall of the bottom end of the upper cover 10. A number of supporting structures 42 that can match the reinforcing structures 12 are provided on the shaft positioning plate 40. When the upper cover 10 is matched and fastened on the lower cover 20 and the shaft positioning plate 40, each reinforcing structure 12 is attached to the upper end of a supporting structure 42 or located directly above it.

[0035] like Figure 2 As shown, a sound-absorbing component 70 is provided at both the upper and lower ends of the circuit board 30. The upper end of one sound-absorbing component 70 abuts against the lower end of the shaft positioning plate 40, and the lower end of the other sound-absorbing component 70 abuts against the upper end of the inner wall of the lower cover 20. A fifth positioning protrusion 43 is also formed around the lower end of the sound-absorbing component 70 at its lower end on the shaft positioning plate 40. The lower ends of several fifth positioning protrusions 43 extend between the circuit board 30 / sound-absorbing component 70 and the support member 24. In this embodiment, both sound-absorbing components 70 are sound-absorbing cotton.

[0036] During assembly, first assemble the button assembly 50, shaft positioning plate 40, muffler 70, and circuit board 30 to form a button module for later use. Then fix or place the vibration damping component 60 on the shaft positioning plate 40. Next, place another muffler 70 on the inside of several support components 24 on the lower cover 20. Then, insert the assembled button module circuit board 30 into the lower cover 20 with the lower cover 20 facing it. At this time, the lower end of the vibration damping component 60 abuts against the support component 24. Finally, snap the upper cover 10 onto the upper end of the lower cover 20 and the shaft positioning plate 40. The assembly is convenient.

[0037] This invention, by providing a support member 24 on the lower cover 20, allows for the convenient mounting of the shaft positioning plate 40, which holds the circuit board 30 and several key components 50, onto the lower cover 20. Furthermore, by designing the cross-section of the upper cover 10 as an inverted U-shape, and providing a second positioning structure 12 on one side wall that matches the first positioning structure 23 on the lower cover 20, the upper cover 10 can be directly snapped onto the lower cover 20, simultaneously securing the key modules to the lower cover 20. This assembly operation is convenient and quick. By providing a reinforcing structure 12 on the upper cover 10 and a support structure 42 on the shaft positioning plate 40, the strength of the upper cover 10 and the support of the shaft positioning plate 40 are enhanced, preventing or mitigating deformation of the upper cover 10, thus ensuring the stable assembly of the upper cover 10, and consequently ensuring the stability of the key modules on the lower cover 20, and the normal service life of the keyboard. By providing a vibration damping member 60 and a noise-reducing member 70, the vibration and noise of the shaft positioning plate 40 and the circuit board 30 when the keys are pressed can be reduced, improving the user experience.

[0038] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. An easily assembled keyboard structure, comprising an upper cover, a lower cover, a circuit board, a shaft positioning plate and a plurality of key assemblies, the circuit board being arranged on the lower cover and below the shaft positioning plate, the shaft positioning plate being detachably and fixedly provided with the plurality of key assemblies, each of the key assemblies being provided with a movable key; characterized in that: the lower cover comprises a bottom wall and a lower side wall extending along the contour edge of the lower cover and towards the upper cover, the outer wall of the lower side wall is arranged with a plurality of first positioning structures arranged in a straight line along the extension direction of the outer wall, the inner wall of the lower side wall is arranged with a plurality of support members along the extension direction of the inner wall, the upper ends of the plurality of support members are coplanar; the shaft positioning plate is matchingly embedded on the lower side wall and placed on the plurality of support members, the upper end of the shaft positioning plate is formed with a plurality of second positioning protrusions extending in the same direction as the contour of the shaft positioning plate; the upper cover is arranged above the connection between the lower cover and the shaft positioning plate, the cross section of the upper cover is an inverted U-shaped structure, one side wall of the upper cover extends to the outside of the lower side wall and the inner wall of the upper cover is formed with a plurality of second positioning structures matched with the first positioning structures one by one, the other side wall of the upper cover extends to the outside of the side wall of the second positioning protrusions towards the key assemblies. The first positioning structure and the second positioning structure are a clamping groove or a clamping protrusion.

2. The keyboard structure of claim 1, wherein Each of the support members comprises a plurality of rib plates, the plurality of rib plates intersect to form a frame-shaped structure, one end of the frame-shaped structure extends to the lower side wall, and the other end of the frame-shaped structure extends to the bottom wall.

3. The keyboard structure of claim 1, wherein The inner wall of the bottom end of the upper cover is further provided with a plurality of reinforcing structures, and the shaft positioning plate is provided with a plurality of support structures matched with the reinforcing structures one by one.

4. The keyboard structure of claim 1, wherein A plurality of damping members are arranged between the second positioning protrusions and the lower side wall, the upper end of each of the damping members extends to the inner wall of the upper end of the upper cover.

5. The keyboard structure of any of claims 1-4, wherein, The upper and lower ends of the circuit board are provided with a sound-absorbing member, the upper end of one of the sound-absorbing members abuts against the lower end of the shaft positioning plate, and the lower end of the other sound-absorbing member abuts against the upper end of the inner wall of the lower cover.

6. The keyboard structure of any of claims 1-4, wherein, The lower end of the shaft positioning plate is further formed with a fifth positioning protrusion at the periphery of the sound-absorbing member at the lower end, the lower end of the plurality of fifth positioning protrusions extends between the circuit board / sound-absorbing member and the support member.

7. The keyboard structure of claim 6, wherein ​

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