Leather sheath keyboard rotating shaft

Abstract

A leather sheath keyboard rotating shaft comprises a connecting plate, a keyboard connecting hole is formed in the connecting plate, and one side of the connecting plate tilts upwards to form a connecting lug; one end of the connecting shaft is fixed on the connecting lug, and the other end of the connecting shaft is free; one end of the rotating arm is rotationally connected to the free end of the connecting shaft, and the other end of the rotating arm is connected with a rotating blade; leather sheath connecting holes are formed in the rotating blades; the limiting sleeve is arranged at the free end of the connecting shaft, and a limiting groove is formed in the limiting sleeve and used for limiting the rotating angle of the rotating arm within a preset angle. According to the leather sheath keyboard rotating shaft, the tablet personal computer can be supported by means of the cooperation of the rotating arm and the limiting groove, so that the convenience when the tablet personal computer is connected with the keyboard is improved.

Description

Technical Field

[0001] The utility model relates to the field of keyboard shafts, in particular to a leather case keyboard shaft. Background Art

[0002] Tablet computers, also known as portable computers, are small and light, making them easy to carry. They are becoming more and more popular among users. With a touch screen as a basic input device, tablet computers are very convenient to use. In order to improve the typing experience, people often choose an external keyboard for input. At present, a leather keyboard is a very common external device, which is not only convenient for input, but also can protect the tablet. However, the existing leather keyboard needs to be folded for support, and the folded part needs to be in contact with the plane to achieve support, which may bring some limitations during use, such as not being able to be placed directly on the knees for work like a laptop.

[0003] How to improve the convenience of using a tablet computer is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0004] The utility model aims to provide a leather case keyboard shaft, which can support a tablet computer by means of the cooperation of its own rotating arm and the limit groove, so as to improve the convenience of using the tablet computer when connected to the keyboard.

[0005] The utility model provides a leather case keyboard shaft, comprising:

[0006] A connecting plate, wherein a keyboard connecting hole is formed on the connecting plate, and one side of the connecting plate is upwardly tilted to form a connecting ear;

[0007] A connecting shaft, one end of which is fixed to the connecting ear and the other end is free;

[0008] A rotating arm, one end of which is rotatably connected to the free end of the connecting shaft, and the other end of which is connected to a rotating blade; a leather sleeve connecting hole is provided on the rotating blade;

[0009] A limiting sleeve is arranged at the free end of the connecting shaft and has a limiting groove thereon for limiting the rotation angle of the rotating arm within a preset angle.

[0010] Furthermore, one side of the connecting plate is upwardly tilted to form two connecting ears at intervals, and both connecting ears are connected to a connecting shaft.

[0011] Furthermore, the leather keyboard shaft also includes a spindle cover, which includes an upper spindle cover and a lower spindle cover. The upper spindle cover and the lower spindle cover cooperate to form a covering cavity, and the two connecting ears are located in the covering cavity.

[0012] Furthermore, the main shaft upper cover and the main shaft lower cover are detachably connected by bolts.

[0013] Furthermore, the free end of the connecting shaft is provided with an annular protrusion, the rotating arm is provided on the side of the annular protrusion away from the connecting ear, and a torsion spring is also provided between the annular protrusion and the rotating arm, one end of the torsion spring is fixed to the annular protrusion, and the other end is fixed to the rotating arm.

[0014] Furthermore, a limit nut is provided at the free end of the connecting shaft, and a plurality of elastic washers are provided between the limit nut and the rotating arm.

[0015] Furthermore, the limiting sleeve includes a first sleeve body and a second sleeve body, the first sleeve body is sleeved on the free end of the connecting shaft, the second sleeve body is covered on the first sleeve body, and the limiting groove is opened in the second sleeve body.

[0016] Furthermore, the first sleeve and the second sleeve are detachably connected via bolts.

[0017] Furthermore, the first sleeve is flexibly connected with a reinforcing blade along its axial direction, the reinforcing blade corresponds to the position of the rotating blade, and a reinforcing blade connecting hole corresponding to the position of the leather sleeve connecting hole is opened on the reinforcing blade.

[0018] Furthermore, the preset rotation angle of the rotating arm is 60°-120°.

[0019] The technical effect of the technical solution is that the leather case keyboard shaft of the utility model is first connected to the rotating blades through the rotating arm, and when the rotating blades are connected to the leather case of the leather case keyboard, the limiting groove limits the rotation of the rotating arm, so that the rotating arm is fixed after rotating to a certain angle, thereby achieving support for the tablet computer. That is, using the leather case keyboard shaft of the utility model, the tablet computer can be opened and closed like a laptop computer and fixed at a preset angle without the need for other supporting components, thereby improving the convenience of using the tablet computer connected to the keyboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model are briefly introduced below. The drawings in the following description are only for some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A schematic diagram of the structure of the leather case keyboard shaft in an embodiment of the present application is shown;

[0022] Figure 2A schematic diagram of the exploded structure of the leather case keyboard shaft in an embodiment of the present application is shown.

[0023] Description of the drawings: 1-connecting plate; 2-connecting ear; 3-connecting shaft; 4-rotating arm; 5-rotating blade; 6-limiting groove; 7-main shaft upper cover; 8-main shaft lower cover; 9-annular protrusion; 10-torsion spring; 11-limiting nut; 12-elastic washer; 13-first sleeve; 14-second sleeve; 15-reinforcement blade; 16-end cover. DETAILED DESCRIPTION

[0024] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of the disclosure of this utility model.

[0030] In the following description, suffixes such as "module", "component", "assembly" or "unit" are used only to facilitate the description of the present invention and have no specific meanings. Therefore, they can be used in combination.

[0031] The present invention is further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0032] According to an embodiment of the utility model, a leather case keyboard shaft includes:

[0033] A connecting plate 1, wherein a keyboard connecting hole is formed on the connecting plate 1, and one side of the connecting plate 1 is upwardly tilted to form a connecting ear 2;

[0034] A connecting shaft 3, one end of which is fixed to the connecting ear 2 and the other end is free;

[0035] A rotating arm 4, one end of which is rotatably connected to the free end of the connecting shaft 3, and the other end of which is connected to a rotating blade 5; a leather sleeve connecting hole is provided on the rotating blade 5;

[0036] A limiting sleeve is arranged at the free end of the connecting shaft 3 and has a limiting groove 6 thereon for limiting the rotation angle of the rotating arm 4 within a preset angle.

[0037] In order to improve the convenience of using a tablet computer, the utility model provides a leather case keyboard shaft, wherein the connecting plate 1 forms a connecting ear 2 by partially tilting, and the straight part of the connecting plate 1 is provided with a keyboard connecting hole, the number of the keyboard connecting holes is multiple, and the shapes are also multiple, which may include a combination of one or more of a circular through hole, a waist-shaped through hole, a rectangular through hole, etc. When in use, the straight part of the connecting plate 1 is connected to the keyboard of the leather case keyboard through the keyboard connecting hole; the above-mentioned rotating blade 5 is connected to the leather case of the leather case keyboard; the leather case is usually snapped or magnetically attracted or glued to the back of the tablet computer. In this embodiment, one end of the connecting shaft 3 is fixed to the connecting ear 2 by a bolt, and the other end is connected to the rotating arm 4, and the rotating arm 4 can rotate around the axis of the connecting shaft 3; the rotating blade 5 is connected to the rotating arm 4, and when the rotating arm 4 rotates, the rotating blade 5 can be driven to rotate, and then the leather case of the leather case keyboard can be driven to rotate, so as to realize the opening and closing of the tablet computer. In this embodiment, the connecting shaft 3 and the connecting ear 2 are both one, and in some other possible implementations, the number of the connecting shaft 3 and the connecting ear 2 can be multiple. The leather case keyboard shaft of this embodiment also includes a limit sleeve, which is arranged at the free end of the connecting shaft 3. A limit slot 6 is provided on the limit sleeve, and the limit slot 6 is opposite to the rotating arm 4. After the rotating wall rotates to a preset angle, it will be blocked by the slot wall of the limit slot 6, thereby making the tablet fixed by the leather case and the keyboard controlling the tablet at a preset angle.

[0038] In this embodiment, the rotating arm 4 is connected to the rotating blade 5, and the rotating blade 5 is connected to the leather case of the leather case keyboard. The limiting groove 6 limits the rotation of the rotating arm 4, so that the rotating arm 4 is fixed after rotating to a certain angle, thereby achieving support for the tablet computer. That is, using the leather case keyboard shaft of the utility model, the tablet computer can be opened and closed like a laptop computer and fixed at a preset angle without the need for other supporting components, thereby improving the convenience of using the tablet computer connected to the keyboard.

[0039] According to an embodiment of the present invention, Figure 1 and Figure 2 As shown, in this embodiment, one side of the connecting plate 1 is upwardly tilted to form two connecting ears 2 at intervals, and the two connecting ears 2 are connected to a connecting shaft 3. In order to ensure that the shaft of the leather case keyboard is evenly stressed during use and to prevent the connecting shaft 3 from being worn eccentrically after multiple openings and closings, the connecting plate 1 in this embodiment is symmetrically provided with two connecting ears 2, and each connecting ear 2 is provided with a connecting shaft 3, a rotating arm 4, a rotating blade 5 and a limiting sleeve. By arranging two symmetrical connecting ears 2, two connecting shafts 3, two rotating arms 4, two rotating blades 5 and two limiting sleeves on the connecting plate 1, the weight of the tablet computer connected to the leather case keyboard is shared, thereby improving the service life of the leather case keyboard shaft of the utility model.

[0040] Further, such as Figure 2As shown, in this embodiment, the leather case keyboard shaft also includes a spindle cover, the spindle cover includes a spindle upper cover 7 and a spindle lower cover 8, the spindle upper cover 7 and the spindle lower cover 8 cooperate to form a covering cavity, and the two connecting ears 2 are located in the covering cavity. The spindle upper cover 7 and the spindle lower cover 8 are detachably connected by bolts. In this embodiment, the connecting ear 2 is hidden by setting the spindle cover, because the connecting ear 2 itself is formed by the upward tilting of the connecting plate 1, so a relatively sharp edge will be formed. If the user accidentally touches it, it may scratch the palm, so the spindle cover is set in this embodiment, the spindle cover includes a spindle upper cover 7 and a spindle lower cover 8, the spindle upper cover 7 and the spindle lower cover 8 cooperate to form a covering cavity, so that the two connecting ears 2 and the part of the connecting shaft 3 are all in the covering cavity, the spindle upper cover 7 and the spindle lower cover 8 are cylindrical after cooperation, and threaded holes are set radially on the spindle upper cover 7 and the spindle lower cover 8, and the connection and cooperation between the two are realized by multiple bolts. In this embodiment, a main shaft cover is provided to hide the connecting ear 2 and the fixed end of the connecting shaft 3, thereby improving the safety of the leather case keyboard shaft.

[0041] According to an embodiment of the present invention, Figure 1 and Figure 2 As shown, the free end of the connecting shaft 3 is provided with an annular protrusion 9, the rotating arm 4 is provided on the side of the annular protrusion 9 away from the connecting ear 2, and a torsion spring 10 is further provided between the annular protrusion 9 and the rotating arm 4, one end of the torsion spring 10 is fixed to the annular protrusion 9, and the other end is fixed to the rotating arm 4. In this embodiment, by providing the torsion spring 10 on the connecting shaft 3 as an assisting spring for the rotation of the rotating arm 4, on the one hand, it can provide assistance when opening and closing the leather case keyboard, and on the other hand, it can ensure that the tablet computer is stably fixed after the leather case keyboard is opened. The elastic force provided by the torsion spring 10 can make the rotating arm 4 always press against the wall of the limiting groove 6 in the absence of external force, thereby enabling the tablet computer to be stabilized at a preset angle.

[0042] Furthermore, in this embodiment, a limit nut 11 is further provided at the free end of the connecting shaft 3, and a plurality of elastic washers 12 are provided between the limit nut and the rotating arm 4. The limit nut 11 and the elastic washers 12 are provided to axially position the rotating arm 4, so as to avoid the rotating arm 4 from twisting during use. In addition, the tightness of the rotating shaft of the leather case keyboard in this embodiment can be adjusted by adjusting the position of the limit nut 11 to meet the requirements of different users for the hand feel.

[0043] Further, according to an embodiment of the utility model, the limiting sleeve includes a first sleeve body 13 and a second sleeve body 14, the first sleeve body 13 is sleeved on the free end of the connecting shaft 3, the second sleeve body 14 is covered on the first sleeve body 13, and the limiting groove 6 is opened in the second sleeve body 14. The first sleeve body 13 and the second sleeve body 14 are detachably connected by bolts. The first sleeve body 13 is flexibly connected with a reinforcing blade 15 along its axial direction, the reinforcing blade 15 corresponds to the position of the rotating blade 5, and the reinforcing blade 15 is provided with a reinforcing blade 15 connection hole corresponding to the position of the leather cover connection hole. By setting the reinforcing blade 15, when forming the leather cover keyboard, the reinforcing blade 15, the rotating blade 5 and the leather cover for fixing the tablet computer are connected by bolts. Since the reinforcing blade 15 is set and the reinforcing blade 15 is flexibly connected to the first sleeve body 13 of the limiting sleeve, the flexible connection part can be made of plain leather or rubber material, so that when the leather cover keyboard is formed, the rotating arm 4 can be hidden therein, further improving the aesthetics of the leather cover keyboard shaft.

[0044] Furthermore, in this embodiment, the limit sleeve also includes an end cap 16 disposed at the end of the first sleeve body 13. By providing the end cap 16, the mating rotating part of the rotating arm 4 and the connecting shaft 3 in the leather case keyboard shaft is completely sealed to prevent the rotating part from rusting due to splashing water or humid air, which affects the user's experience. Further in this embodiment, the preset rotation angle of the rotating arm 4 is 60°-120°; preferably, the opening and closing angle is 75° or 95°.

[0045] In the description of the specification, the description with reference to the terms "one embodiment", "some embodiments", "an embodiment", "some embodiments", "an example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Claims

1. A leather case keyboard shaft, characterized in that: include: A connecting plate, wherein a keyboard connecting hole is formed on the connecting plate, and one side of the connecting plate is upwardly tilted to form a connecting ear; A connecting shaft, one end of which is fixed to the connecting ear and the other end is free; A rotating arm, one end of which is rotatably connected to the free end of the connecting shaft, and the other end of which is connected to a rotating blade; a leather sleeve connecting hole is provided on the rotating blade; A limiting sleeve is arranged at the free end of the connecting shaft and has a limiting groove thereon for limiting the rotation angle of the rotating arm within a preset angle.

2. The leather case keyboard hinge according to claim 1, characterized in that: One side of the connecting plate is tilted upward to form two connecting ears at intervals, and the two connecting ears are both connected to a connecting shaft.

3. The leather case keyboard shaft according to claim 2, characterized in that: It also includes a spindle cover, which includes an upper spindle cover and a lower spindle cover. The upper spindle cover and the lower spindle cover cooperate to form a covering cavity, and the two connecting ears are located in the covering cavity.

4. The leather case keyboard shaft according to claim 3, characterized in that: The main shaft upper cover and the main shaft lower cover are detachably connected by bolts.

5. The leather case keyboard hinge according to claim 1, characterized in that: The free end of the connecting shaft is provided with an annular protrusion, the rotating arm is provided on the side of the annular protrusion away from the connecting ear, and a torsion spring is also provided between the annular protrusion and the rotating arm, one end of the torsion spring is fixed to the annular protrusion, and the other end is fixed to the rotating arm.

6. The leather case keyboard shaft according to claim 5, characterized in that: A limit nut is also provided at the free end of the connecting shaft, and a plurality of elastic washers are provided between the limit nut and the rotating arm.

7. The leather case keyboard hinge according to claim 1, characterized in that: The limiting sleeve comprises a first sleeve body and a second sleeve body, wherein the first sleeve body is sleeved on the free end of the connecting shaft, the second sleeve body is covered on the first sleeve body, and the limiting groove is provided in the second sleeve body.

8. The leather case keyboard shaft according to claim 7, characterized in that: The first sleeve body and the second sleeve body are detachably connected via bolts.

9. The leather case keyboard shaft according to claim 7, characterized in that: The first sleeve body is flexibly connected with a reinforcing blade along its axial direction. The reinforcing blade corresponds to the position of the rotating blade. The reinforcing blade is provided with a reinforcing blade connecting hole corresponding to the position of the leather sleeve connecting hole.

10. The leather case keyboard hinge according to claim 1, characterized in that: The preset rotation angle of the rotating arm is 60°-120°.

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