Damping rotating shaft mechanism and electronic equipment with same

Abstract

The utility model discloses a damping rotating shaft mechanism and electronic equipment with the damping rotating shaft mechanism, the damping rotating shaft mechanism comprises a support, a rotating shaft, a fixed damping piece, a movable damping piece, a locking nut and an elastic gasket, the rotating shaft is arranged on the support in a penetrating mode; the fixed damping piece sleeves the rotating shaft and is fixed with the bracket; a groove is formed in the axial end surface of the fixed damping piece; the rotating shaft is sleeved with the movable damping piece, the movable damping piece and the rotating shaft are relatively fixed in the circumferential direction, a protrusion matched with the groove is arranged on the movable damping piece, and the locking nut is in threaded connection to the rotating shaft; the elastic gasket is arranged on the rotating shaft in a sleeving mode, located between the locking nut and the movable damping piece and in a compressed state. The projections of the fixed damping piece, the movable damping piece, the elastic gasket and the locking nut in the axial direction of the rotating shaft are located in the height size range of the support. The damping rotating shaft mechanism and the electronic equipment have the advantages that the height size is small, the occupied thickness space is small, the electronic equipment is light and thin, the cost is lower, and the competitiveness of products is improved.

Description

Technical Field

[0001] The utility model relates to electronic equipment, in particular to a damping shaft mechanism and electronic equipment with the same. Background Art

[0002] Industrial tablet computers are very popular in the market, mainly due to their portability and full functionality. Many users hope that industrial tablet computers can be used not only as mobile devices, but also as desktop devices on office desks. To meet this demand, industrial tablet computers are usually equipped with an adjustable support frame, allowing users to adjust the tablet's tilt angle according to their preferences, so as to obtain a more comfortable viewing and operating experience.

[0003] In order to achieve the adjustable function of the support frame, manufacturers usually adopt the design of metal damping shaft, which sets a hinge with damping function (i.e. metal damping shaft) between the support frame and the back shell of the product, so that the support frame can be opened and closed freely. At the same time, it can also produce a certain damping feeling when opening, making the opening and closing action of the support frame smoother and more stable, and able to maintain the desired angle.

[0004] However, this damping shaft also has some problems in the actual application of electronic products such as tablet computers. Since industrial tablet computers pursue portability, the overall thickness of the product has become an important consideration. Thinner products are usually more portable and more competitive. However, when the support frame and metal damping shaft are introduced, the thickness of the internal components is superimposed, which eventually increases the total thickness of the product, making it look bulky, affecting the portability and competitiveness of the product. In addition, the cost is also higher. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the purpose of the utility model is to provide a damping shaft mechanism and an electronic device having the same.

[0006] To achieve the above objectives, on the one hand, the damping shaft mechanism according to an embodiment of the utility model includes:

[0007] Bracket;

[0008] A rotating shaft, the rotating shaft is disposed on the bracket and can pivot relative to the bracket around its own axis;

[0009] A fixed damping member, the fixed damping member is sleeved on the rotating shaft and fixed to the bracket, and an axial end surface of the fixed damping member is provided with a groove;

[0010] A movable damping member, wherein the movable damping member is sleeved on the rotating shaft and relatively fixed to the rotating shaft in the circumferential direction, the movable damping member is adjacent to the fixed damping member, and a protrusion matching with the groove is provided on the axial end surface of the movable damping member facing the fixed damping member;

[0011] A locking nut, the locking nut being threadedly connected to the rotating shaft and being located at a side of the movable damping member away from the fixed damping member;

[0012] an elastic gasket, wherein the elastic gasket is sleeved on the rotating shaft and is located between the locking nut and the movable damping member and is in a compressed state. When the rotating shaft rotates, the movable damping member rotates to make the protrusion slide out of the groove and generate axial pressure on the fixed damping member and the elastic gasket;

[0013] The projections of the rotating shaft, the fixed damping member, the movable damping member, the elastic gasket and the locking nut along the axial direction of the rotating shaft are within the height dimension range of the bracket.

[0014] In addition, the damping shaft mechanism according to the above embodiment of the utility model may also have the following additional technical features:

[0015] According to one embodiment of the utility model, the bracket comprises:

[0016] A connecting seat, used to connect to the first body;

[0017] A support arm, the support arm is connected to the connecting seat, and the support arm has a first pivot hole and a positioning hole;

[0018] The fixed damping member has a second pivot hole, and the fixed damping member has a positioning portion, and the positioning portion is arranged away from the center of the second pivot hole;

[0019] The rotating shaft passes through the first pivot hole and the second pivot hole and is pivotable, and the positioning portion is positioned and matched with the positioning hole.

[0020] According to an embodiment of the present utility model, a limiting structure is further provided between the rotating shaft and the bracket to limit the angular range of rotation of the rotating shaft relative to the bracket.

[0021] According to an embodiment of the utility model, the limiting structure includes a limiting piece, and the limiting piece is sleeved on the rotating shaft and relatively fixed with the rotating shaft in the circumferential direction;

[0022] An arc-shaped limiting groove is arranged on the periphery of the limiting piece, and a limiting portion is arranged on the bracket. The limiting portion is located in the arc-shaped limiting groove. When the rotating shaft and the bracket rotate relatively, the limiting portion slides relatively in the arc-shaped limiting groove.

[0023] According to an embodiment of the utility model, the limiting plate is located on one side of the support arm in the axial direction of the rotating shaft, and the fixed damping member is located on the other side of the support arm in the axial direction of the rotating shaft.

[0024] According to an embodiment of the present invention, the groove has an inclined surface on both sides in the circumferential direction, respectively, for guiding the protrusion to slide out of the groove.

[0025] According to an embodiment of the utility model, the rotating shaft has a rod portion and a loading portion, the rod portion has a smooth surface segment and a threaded segment connected to each other, the loading portion is located at one end of the smooth surface segment away from the threaded segment, and is used to connect to the second body;

[0026] The limiting piece, the bracket, the fixed damping member and the movable damping member are sleeved on the smooth surface section, and the locking nut is threadably matched with the threaded section.

[0027] According to an embodiment of the utility model, the cross section of the rod is formed as a non-circular cross section, the limiting plate has a first non-circular hole sleeved with the rod, and the movable damping member has a second non-circular hole sleeved with the rod;

[0028] The first non-circular hole and the second non-circular hole are both adapted to the non-circular cross section, so that the limiting plate, the movable damping member and the rotating shaft are relatively fixed in the circumferential direction.

[0029] According to an embodiment of the utility model, the loading portion is a cylinder, and the height dimension of the bracket is not greater than the diameter of the cylinder;

[0030] The outer peripheral surface of the cylinder has a cutting plane formed by axial cutting, and the maximum vertical distance between the cutting plane and the outer peripheral surface of the cylinder is less than or equal to the height of the bracket.

[0031] According to an embodiment of the utility model, there are two grooves and two protrusions, the two grooves correspond to the two protrusions one by one, and each groove cooperates with the corresponding protrusion.

[0032] On the other hand, an electronic device according to an embodiment of the present invention includes:

[0033] First subject;

[0034] Second subject;

[0035] In the damping shaft mechanism as described above, the first body is fixedly connected to the bracket, and the second body is fixedly connected to the shaft.

[0036] According to an embodiment of the utility model, a damping shaft mechanism and an electronic device having the same are provided. In the damping shaft mechanism, the protrusion on the movable damping member matches the groove on the fixed damping member. When the shaft rotates, the movable damping member rotates to make the protrusion slide out of the groove and generate axial pressure on the fixed damping member and the elastic gasket. In this way, a stable and appropriate damping feeling can be generated. The first body or the second body can stop at any angle within the rotation range and automatically snap together when closed. In addition, the projections of the fixed damping member, the movable damping member, the elastic gasket and the locking nut along the axial direction of the shaft are located within the height dimension range of the bracket. In this way, the damping shaft mechanism has a very small height dimension. When it is used in electronic equipment, it occupies a smaller thickness space, making the electronic equipment thinner and lighter, and the cost is also lower, thereby improving the competitiveness of the product.

[0037] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] 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 described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0039] Figure 1 It is a structural schematic diagram of a damping shaft mechanism of an embodiment of the utility model from one perspective;

[0040] Figure 2 It is a structural schematic diagram of the damping shaft mechanism of the utility model embodiment from another perspective;

[0041] Figure 3 It is an exploded view of the damping shaft mechanism of the embodiment of the utility model;

[0042] Figure 4 It is an axial view of the loading portion of the rotating shaft in the embodiment of the utility model;

[0043] Figure 5 It is a structural schematic diagram of a fixed damping member and a movable damping member in a damping shaft mechanism of an embodiment of the utility model;

[0044] Figure 6 It is a partial structural schematic diagram of an electronic device according to an embodiment of the utility model from one viewing angle;

[0045] Figure 7 It is a partial structural schematic diagram of the electronic device of another perspective of the embodiment of the utility model;

[0046] Figure 8 It is a partial structural schematic diagram of the electronic device (with the bracket opened) according to the embodiment of the utility model.

[0047] Reference numerals:

[0048] 100. Damping shaft mechanism;

[0049] 10. Bracket;

[0050] 101, connecting seat;

[0051] 102. Support arm;

[0052] 1021, limit part;

[0053] H10a, first pivot hole;

[0054] H10b, positioning hole;

[0055] 20. Rotating shaft;

[0056] 201, rod;

[0057] 201a, smooth section;

[0058] 201b, threaded section;

[0059] 202, loading unit;

[0060] S20, tangent plane;

[0061] S21, outer peripheral surface;

[0062] 30. Fix the damping member;

[0063] 301, positioning unit;

[0064] H30, second pivot hole;

[0065] H31, groove;

[0066] S31, inclined surface;

[0067] 40. Movable damping member;

[0068] 401, bulge;

[0069] H40, second non-circular hole;

[0070] 50. Locking nut;

[0071] 60. Elastic gasket;

[0072] 70. Limiting piece;

[0073] H70, arc-shaped limit groove;

[0074] H71, first non-circular hole;

[0075] 200, the first subject;

[0076] 300. The second subject.

[0077] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0078] The embodiments of the utility model 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 utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0079] 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", "axial", "circumferential", "radial" 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] The damping shaft mechanism and the electronic device having the same according to the embodiment of the utility model are described in detail below with reference to the accompanying drawings.

[0084] Reference Figures 1 to 5 As shown, the damping shaft mechanism 100 provided according to the embodiment of the utility model includes a bracket 10 , a shaft 20 , a fixed damping member 30 , a movable damping member 40 , a locking nut 50 and an elastic gasket 60 .

[0085] Specifically, the bracket 10 is usually made of metal, such as stainless steel, aluminum alloy, etc., and has the characteristics of high strength and reliable structure. In application, the bracket 10 usually needs to be connected to the first body 200 of the electronic device. For example, the first body 200 is generally the shell of the electronic device, and the shell is usually used as a fixed part.

[0086] The rotating shaft 20 is disposed on the bracket 10 and can pivot around its own axis relative to the bracket 10. The rotating shaft 202 is an axial column structure, and the material is preferably a metal such as carbon steel or stainless steel. In application, the rotating shaft 20 is usually connected to the second body 300 of the electronic device, and the second body 300 is generally a movable part such as a support frame and a display screen. The rotating shaft 20 rotates relative to the bracket 10, so that the support frame or the display screen can rotate relative to the housing.

[0087] The fixed damping member 30 is sleeved on the rotating shaft 20 and fixed to the bracket 10, and a groove H31 is provided on the axial end surface of the fixed damping member 30. The movable damping member 40 is sleeved on the rotating shaft 20 and relatively fixed to the rotating shaft 20 in the circumferential direction, and the movable damping member 40 is adjacent to the fixed damping member 30, and a protrusion 401 matching with the groove H31 is provided on the axial end surface of the movable damping member 40 facing the fixed damping member 30.

[0088] That is to say, the fixed damping member 30 is relatively fixed to the bracket 10, while the movable damping member 40 is relatively fixed to the rotating shaft 20. Since the rotating shaft 20 can rotate around its own axis relative to the bracket 10, when the rotating shaft 20 rotates, the movable damping member 40 can be driven to rotate relative to the fixed damping member 30 and the bracket 10. In addition, the fixed damping member 30 and the movable damping member 40 are arranged adjacent to each other on the rotating shaft 20, and the protrusion 401 on the movable damping member 40 is located in the groove H31 on the fixed damping member 30. When the movable damping member 40 rotates relative to the fixed damping member 30, the protrusion 401 on the movable damping member 40 also rotates accordingly, and then slides out of the groove H31.

[0089] The locking nut 50 is threadedly connected to the rotating shaft 20 and is located on a side of the movable damping member 40 away from the fixed damping member 30. The locking nut 50 can be rotated to adjust the position of the rotating shaft 20. For example, when the locking nut 50 rotates in one direction, it can move toward the direction close to the movable damping member 40, and when the locking nut 50 rotates in the other direction, it moves away from the movable damping member 40.

[0090] The elastic gasket 60 is sleeved on the rotating shaft 20 and is located between the locking nut 50 and the movable damping member 40 and is in a compressed state. When the rotating shaft 20 rotates, the movable damping member 40 rotates to make the protrusion 401 slide out of the groove H31 and generate axial pressure on the fixed damping member 30 and the elastic gasket 60.

[0091] That is to say, the fixed damping member 30, the movable damping member 40, the elastic gasket 60 and the locking nut 50 are sequentially arranged on the rotating shaft 20 along the axial direction of the rotating shaft 20 from one end to the other end. By adjusting the position of the locking nut 50 on the rotating shaft 20, the locking nut 50 generates axial pressure on the elastic gasket 60, and the elastic gasket 60 is compressed to form a compressed state. There are usually multiple elastic gaskets 60 to provide the required elastic force. In the compressed state, the elastic gasket 60, the movable damping member 40, the fixed damping member 30 and the bracket 10 are squeezed against each other, and when the movable damping member 40 rotates with the rotating shaft 20, friction damping can be generated.

[0092] When the protrusion 401 on the movable damping member 40 and the groove H31 on the fixed damping member 30 are in relative positions, at this time, the axial end surface of the movable damping member 40 is close to the axial end surface of the fixed damping member 30, and there is a first gap between the two, and the first gap is zero or very small. In specific applications, usually when the protrusion 401 on the movable damping member 40 and the groove H31 on the fixed damping member 30 are relatively matched, the first body 200 and the second body 300 are configured to be in a closed state. When the first body 200 or the second body 300 rotates and switches to the open state, the rotating shaft 20 drives the movable damping member 40 to rotate around the axis of the rotating shaft 20, so that the protrusion 401 on the movable damping member 40 also rotates accordingly, and then slides out of the groove H31. At this time, the protrusion 401 is misaligned with the groove H31, and the protrusion 401 abuts against the axial end face of the fixed damping member 30, thereby increasing the distance between the axial end face of the movable damping member 40 and the axial end face of the fixed damping member 30 to form a second gap. Since the second gap is larger than the first gap, the axial pressure generated by the movable damping member 40 on the fixed damping member 30 and the elastic gasket 60 increases, so the friction damping of the rotation of the rotating shaft 20 increases, thereby making the first body 200 or the second body 300 have a larger friction damping in the open state. This larger friction damping can keep the first body 200 or the second body 300 in a stable open state.

[0093] When it is necessary to restore the first body 200 and the second body 300 to the closed state, it is only necessary to gently rotate the first body 200 or the second body 300, and the rotating shaft 20 and the movable damping member 40 will rotate accordingly. At the same time, the protrusion 401 on the movable damping member 40 and the groove H31 on the fixed damping member 30 are rotated to a relative position, and with the assistance of the restoring force of the elastic gasket 60, the protrusion 401 automatically slides into the groove H31 and snaps into place. In this way, the first body 200 and the second body 300 can be automatically closed and positioned, thereby increasing the user's experience after rotation into place.

[0094] In addition, the projections of the rotating shaft 20, the fixed damping member 30, the movable damping member 40, the elastic gasket 60 and the locking nut 50 along the axial direction of the rotating shaft 20 are within the height dimension range of the bracket 10. That is, the projections of the rotating shaft 20, the fixed damping member 30, the movable damping member 40, the elastic gasket 60 and the locking nut 50 along the axial direction of the rotating shaft 20 are all limited within the height range of the bracket 10, so that the entire mechanism structure is compact and the height dimension is minimized. This is particularly important for electronic products that require a lightweight design.

[0095] According to the embodiment of the utility model, a damping shaft mechanism 100 and an electronic device having the same are provided. In the damping shaft mechanism 100, the protrusion 401 on the movable damping member 40 cooperates with the groove H31 on the fixed damping member 30. When the shaft 20 rotates, the movable damping member 40 rotates to make the protrusion 401 slide out of the groove H31 and generate axial pressure on the fixed damping member 30 and the elastic gasket 60. In this way, a stable and appropriate damping feeling can be generated. The first body 200 or the second body 300 can stop at any angle within the rotation range and automatically buckle when closed. In addition, the projection of the shaft 20, the fixed damping member 30, the movable damping member 40, the elastic gasket 60 and the locking nut 50 along the axial direction of the shaft 20 is located within the height dimension range of the bracket 10. In this way, the damping shaft mechanism 100 has a very small height dimension. When it is used in an electronic device, it occupies a small thickness space, so that the electronic device is thin and light, and the cost is also lower, which improves the competitiveness of the product.

[0096] Reference Figures 1 to 3 As shown, in some embodiments of the present invention, the bracket 10 includes a connection base 101 and an arm 102, and the connection base 101 is used to connect to the first body 200. The arm 102 is connected to the connection base 101, and the arm has a first pivot hole H10a and a positioning hole H10b.

[0097] The fixed damping member 30 has a second pivot hole H30 and a positioning portion 301 disposed away from the center of the second pivot hole H30. The rotating shaft 20 passes through the first pivot hole H10a and the second pivot hole H30 and can pivot, and the positioning portion 301 is positioned and matched with the positioning hole H10b.

[0098] In this embodiment, the bracket 10 is mainly composed of a connection base 101 and a support arm 102. The connection base 101 is a component used to connect with the first body 200 (usually a fixed part such as a housing) of the electronic device. The connection base 101 can be firmly connected to the first body 200 by bolt connection, snap-on connection or other reliable mechanical connection methods.

[0099] The support arm 102 and the bracket 10 can be formed into an integrated structure. The support arm 102 is provided with a first pivot hole H10a and a positioning hole H10b. The first pivot hole H10a is a through hole for the shaft 20 to pass through and rotate. The fixed damping member 30 is provided with a second pivot hole H30 opposite to the first pivot hole H10a, and the shaft 20 also passes through the second pivot hole H30. The diameters of the first pivot hole H10a and the second pivot hole H30 are similar to those of the shaft 20. When the shaft 20 rotates through the first pivot hole H10a and the second pivot hole H30, the shaft 20 can be rotated around its own axis relative to the bracket 10.

[0100] The positioning hole H10b is usually arranged on one side of the first pivot hole H10a. The fixed damping member 30 is also provided with a positioning portion 301. When assembled, after the fixed damping member 30 is sleeved on the rotating shaft 20 through the second pivot hole H30, the fixed damping member 30 is slid toward the direction close to the support arm 102, so that the fixed damping member 30 is close to the support arm 102, and the positioning portion 301 is aligned and inserted into the positioning hole H10b. In this way, the fixed damping member 30 can be circumferentially fixed with the bracket 10, and when the rotating shaft 20 rotates, the fixed damping member 30 remains relatively fixed in the circumferential direction. At the same time, since the fixed damping member 30 can slide relatively on the rotating shaft 20 in the axial direction, the fixed damping member 30 can have a relatively small displacement relative to the bracket 10 in the axial direction. For example, when the rotating shaft 20 rotates, the movable damping member 40 rotates to make the protrusion 401 slide out of the groove H31 on the fixed damping member 30, and the protrusion 401 abuts against the axial end surface of the fixed damping member 30, so that the fixed damping member 30 is subjected to axial pressure and moves toward the support arm 102, and then is pressed against the support arm 102.

[0101] With the above structural design, the first pivot hole H10a and the second pivot hole H30 cooperate with the rotating shaft 20, which not only facilitates the assembly between the rotating shaft 20, the bracket 10 and the fixed damping member 30, but also enables the fixed damping member 30 to produce axial displacement during the rotation process, thereby improving friction damping. In addition, the fixed damping member 30 cooperates with the positioning hole H10b on the support arm 102 using the positioning portion 301, which not only facilitates rapid assembly and circumferential fixation of the fixed damping member 30, but also makes the fixed damping member 30 easy to replace and maintain. For example, if the fixed damping member 30 is severely worn, it can be replaced by replacing the fixed damping member 30.

[0102] Reference Figure 1 and Figure 3 As shown, in some embodiments of the present invention, a limiting structure is further provided between the rotating shaft 20 and the bracket 10 to limit the angular range of rotation of the rotating shaft 20 relative to the bracket 10 .

[0103] In this embodiment, a limiting structure is provided between the rotating shaft 20 and the bracket 10, by which the rotation angle range of the rotating shaft 20 relative to the bracket 10 can be controlled, thereby limiting the maximum angle of the first body 200 and the second body 300 in the open state. In addition, damage caused by excessive twisting of the rotating shaft 20 is also prevented, thereby ensuring reliability in the application of electronic equipment.

[0104] Reference Figure 3As shown, in one embodiment of the utility model, the limiting structure includes a limiting piece 70, which is sleeved on the rotating shaft 20 and relatively fixed to the rotating shaft 20 in the circumferential direction. The limiting piece 70 is generally in a circular ring shape and sleeved on the outer circumference of the rotating shaft 20. During assembly, the limiting piece 70 can be relatively fixed to the rotating shaft 20 in the circumferential direction by means of the positioning and fixing structure.

[0105] The periphery of the limiting piece 70 is provided with an arc-shaped limiting groove H70, and the bracket 10 is provided with a limiting portion 1021, and the limiting portion 1021 is located in the arc-shaped limiting groove H70. When the rotating shaft 20 and the bracket 10 rotate relative to each other, the limiting portion 1021 slides relatively in the arc-shaped limiting groove H70. The shape and size of the arc-shaped limiting groove H70 are designed according to the maximum allowable rotation angle range of the rotating shaft 20. The limiting portion 1021 on the support arm 102 is usually a cylindrical or conical protrusion 401 structure. When the entire assembly is in place, the limiting portion 1021 is exactly located in the arc-shaped limiting groove H70 on the limiting piece 70.

[0106] When the shaft 20 rotates to the limit angle in one direction, the limit part 1021 reaches the edge of one end of the arc-shaped limit groove H70 and cannot continue to rotate. When the shaft 20 rotates to the limit angle in the other direction, the limit part 1021 reaches the edge of the other end of the arc-shaped limit groove H70 and cannot continue to rotate. In this way, the limiting effect of the two ends of the arc-shaped limit groove H70 is utilized to limit the rotation angle of the shaft 20.

[0107] In this embodiment, the limiting piece 70 is sleeved on the rotating shaft 20 and uses the arc-shaped limiting groove H70 on it to cooperate with the limiting part 1021 on the support arm 102 to limit the rotation angle range of the rotating shaft 20. Its structure is simple, making the entire damping rotating shaft mechanism 100 more compact and simple. At the same time, since the cooperation between the limiting part 1021 and the arc-shaped limiting groove H70 is reliable and stable, and has flexibility, the size of the limiting groove can be adjusted according to needs, and different rotation angle ranges can be customized conveniently. When repairing and replacing, only the limiting piece 70 needs to be replaced, and the maintenance operation is simple and convenient.

[0108] Reference Figures 1 to 3 As shown, in one embodiment of the present invention, the limiting plate 70 is located on one side of the support arm in the axial direction of the rotating shaft 20 , and the fixed damping member 30 is located on the other side of the support arm in the axial direction of the rotating shaft 20 .

[0109] Through the left-right distribution layout, the support positioning and limiting functions of the rotating shaft 20 are realized, and the groove H31 on the fixed damping member 30 and the protrusion 401 on the movable damping member 40 are ensured to bite into each other without interfering with each other, with a compact structure and efficient and coordinated movement.

[0110] Reference Figure 5As shown, in one embodiment of the present invention, the groove H31 has an inclined surface S31 on both sides in the circumferential direction, respectively, for guiding the protrusion 401 to slide out of the groove H31.

[0111] That is to say, in this embodiment, the groove H31 on the fixed damping member 30 is designed with a certain angle of inclined surface S31 on both sides of the circumference as a transition structure. When the rotating shaft 20 drives the movable damping member 40 to rotate, when the protrusion 401 on the movable damping member 40 is about to slide out of the groove H31 of the fixed damping member 30 after rotating to a certain angle, the protrusion 401 will first touch the inclined surfaces S31 on both sides of the groove H31. Due to the inclined design of the inclined surface S31, the protrusion 401 will not directly collide with the vertical surfaces on both sides of the groove H31, but will produce a gentle sliding process along the inclined surface S31. In this way, when the protrusion 401 completely leaves the groove H31, there will be no violent collision, but a continuous sliding process, which greatly reduces the impact force. At the same time, the setting of the inclined surface S31 will also play a certain guiding role in the sliding trajectory of the protrusion 401, so that the protrusion 401 can slide out of the groove H31 smoothly and unimpeded, avoiding possible jamming or damage. In this way, the smoothness and reliability of the entire rotation process are improved.

[0112] Reference Figure 3 As shown, in some embodiments of the present invention, the rotating shaft 20 has a rod portion 201 and a loading portion 202, the rod portion 201 has a smooth segment 201a and a threaded segment 201b connected to each other, and the loading portion 202 is located at one end of the smooth segment 201a away from the threaded segment 201b for connecting to the second body 300.

[0113] The limiting piece 70, the bracket 10, the fixed damping member 30 and the movable damping member 40 are sleeved on the smooth surface section 201a, and the locking nut 50 is threadedly matched with the threaded section 201b.

[0114] In order to meet the requirements of assembling the damping shaft mechanism 100 on various types of electronic devices, the shaft 20 is designed as a two-section structure consisting of a rod portion 201 and a loading portion 202. The rod portion 201 is the main part of the shaft 20, which is a columnar structure, and has two regions, a smooth section 201a and a threaded section 201b, distributed in sequence in the axial direction. The smooth section 201a is a smooth cylindrical surface. In order to facilitate assembly, its diameter is designed to be slightly smaller than the inner diameter of the first pivot hole H10a. The limit plate 70, the bracket 10, the fixed damping member 30 and the movable damping member 40 can all be assembled along the smooth section 201a. The other end of the smooth section 201a is connected to the threaded section 201b, which is used in conjunction with the locking nut 50. By screwing the locking nut 50 on the threaded section 201b, damping adjustment can be achieved.

[0115] The other part of the rotating shaft 20 is a loading part 202 located at the far end of the smooth surface segment 201a. The loading part 202 is a connection structure, and its function is to be mechanically connected and fixed to the second body 300 of the electronic device (such as a display screen, a bracket 10, etc.). According to different application scenarios, the shape of the loading part 202 can be a variety of structural forms to meet the assembly requirements with various components.

[0116] In this embodiment, the rotating shaft 20 adopts a two-stage design of a rod portion 201 and a loading portion 202, which is convenient for connection with the external second body 300, so that the damping rotating shaft mechanism 100 has high versatility and adaptability, and greatly expands its application range. At the same time, it is also convenient for assembling the limit plate 70, the bracket 10, the fixed damping member 30 and the movable damping member 40, forming a reliable and stable damping rotation structure.

[0117] Reference Figure 3 As shown, in one embodiment of the present utility model, the cross-section of the rod portion 201 is formed as a non-circular cross-section, the limiting plate 70 has a first non-circular hole H71 which is socketed with the rod portion 201, and the movable damping member 40 has a second non-circular hole H40 which is socketed with the rod portion 201.

[0118] The first non-circular hole H71 and the second non-circular hole H40 are both adapted to the non-circular cross section, so that the limiting plate 70, the movable damping member 40 and the rotating shaft 20 are relatively fixed in the circumferential direction.

[0119] In this embodiment, the cross section of the rod portion 201 of the rotating shaft 20 is designed to be a non-circular geometric shape, which is a shape that is retained after a part of a complete circle is cut off. Correspondingly, a first non-circular hole H71 is provided on the limiting plate 70, and a second non-circular hole H40 is also provided on the movable damping member 40. The inner circumferential shape and size of the first non-circular hole H71 and the second non-circular hole H40 are both compatible with the shape and size of the non-circular cross section. During assembly, the limiting plate 70 and the movable damping member 40 can be accurately mounted on the rod portion 201 with the help of their respective non-circular holes, forming a relatively fixed matching relationship in the circumferential direction.

[0120] The non-circular rod 201 design, on the one hand, realizes the relative fixation of the limit plate 70 and the movable damping member 40 relative to the circumference of the rotating shaft 20, thereby enhancing the overall reliability of the damping rotating shaft mechanism 100. On the other hand, the non-circular design also improves the assembly accuracy and rigidity of the entire mechanism, making the rotation smoother and unimpeded.

[0121] Reference Figure 4As shown, in one embodiment of the present invention, the loading portion 202 is a cylinder, and the height dimension of the bracket 10 is not greater than the diameter of the cylinder. The outer circumferential surface S21 of the cylinder has a cutting plane S20 formed by cutting along the axial direction, and the maximum vertical distance between the cutting plane S20 and the outer circumferential surface S21 of the cylinder is less than or equal to the height of the bracket 10. Among them, the "vertical" in the maximum vertical distance means that the line between the cutting plane S20 and the outer circumferential surface S21 is perpendicular to the cutting plane.

[0122] It should be noted that both the height dimension of the bracket 10 and the diameter dimension of the loading part 202 of the rotating shaft have a significant impact on the overall thickness dimension of the product. In the product manufacturing process, the diameter dimension of the loading part 202 of the rotating shaft 20 is first determined, and then it is ensured that the height dimension of the bracket 10 does not exceed the diameter dimension of the loading part 202. Then, when the loading part 202 of the rotating shaft 20 is subsequently subjected to section processing, that is, a part of the cylinder is cut off along the axial direction, so that a section plane S20 is formed on the outer peripheral surface S21 of the loading part 202. Structures such as threaded holes can be provided on the section plane S20 for connecting the second body. After the section plane processing is completed, the maximum vertical dimension from the formed section plane S20 to the outer peripheral surface S21 of the loading part 202 needs to be smaller than the height dimension of the bracket 10.

[0123] Therefore, the above-mentioned dimensional relationship, on the one hand, facilitates the accurate configuration of the axial projection relationship between the rotating shaft 20 and the bracket 10 during the product manufacturing process. On the other hand, it also ensures that it is easy to connect with the second body during use, and after the connection, the entire electronic device can achieve a light and thin design.

[0124] Preferably, there are two grooves H31 and two protrusions 401, and the two grooves H31 correspond to the two protrusions 401 one by one, and each groove H31 cooperates with the corresponding protrusion 401. In order to further improve the damping performance and stability, two grooves H31 are provided on the fixed damping member 30, and two protrusions 401 are also provided on the movable damping member 40, so as to realize the design of one-to-one matching of the grooves H31 and the protrusions 401. Compared with a single concave-convex structure, this two-concave and two-convex configuration can provide a more uniform and continuous damping force during the rotation process, and has better balance. When applied to electronic equipment, it also makes the first body 200 and the second body 300 rotate more smoothly.

[0125] Reference Figures 6 to 8As shown, an embodiment of the utility model further provides an electronic device, comprising a first body 200, a second body 300 and the damping shaft mechanism 100 as described in the above embodiment, wherein the first body 200 is fixedly connected to the bracket 10, and the second body 300 is fixedly connected to the shaft 20, so that the first body 200 and the second body 300 can be relatively rotated to open or close.

[0126] It is understandable that the first body 200 may be a fixed part of the electronic device, such as a device housing, and the second body 300 may be a movable part of the electronic device, such as a display screen or a bracket 10, etc. In specific applications, different assembly application methods may be selected according to different types of electronic devices to achieve the need for rotation and opening.

[0127] According to the electronic device of the embodiment of the utility model, there is the damping shaft mechanism 100, in which the protrusion 401 on the movable damping member 40 cooperates with the groove H31 on the fixed damping member 30. When the shaft 20 rotates, the movable damping member 40 rotates to make the protrusion 401 slide out of the groove H31 and generate axial pressure on the fixed damping member 30 and the elastic gasket 60. In this way, a stable and appropriate damping feeling can be generated, and the first body 200 or the second body 300 can stop at any angle within the rotation range and automatically buckle when closed. In addition, the projection of the shaft 20, the fixed damping member 30, the movable damping member 40, the elastic gasket 60 and the locking nut 50 along the axial direction of the shaft 20 is located within the height dimension range of the bracket 10. In this way, the damping shaft mechanism 100 has a very small height dimension. When it is used in electronic equipment, it occupies a small thickness space, so that the electronic equipment is thin and light, and the cost is also lower, which improves the competitiveness of the product.

[0128] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0129] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A damping shaft mechanism, characterized in that: include: Bracket; A rotating shaft, the rotating shaft is disposed on the bracket and can pivot relative to the bracket around its own axis; A fixed damping member, the fixed damping member is sleeved on the rotating shaft and fixed to the bracket, and an axial end surface of the fixed damping member is provided with a groove; A movable damping member, wherein the movable damping member is sleeved on the rotating shaft and relatively fixed to the rotating shaft in the circumferential direction, the movable damping member is adjacent to the fixed damping member, and a protrusion matching with the groove is provided on the axial end surface of the movable damping member facing the fixed damping member; A locking nut, the locking nut being threadedly connected to the rotating shaft and being located at a side of the movable damping member away from the fixed damping member; an elastic gasket, wherein the elastic gasket is sleeved on the rotating shaft and is located between the locking nut and the movable damping member and is in a compressed state. When the rotating shaft rotates, the movable damping member rotates to make the protrusion slide out of the groove and generate axial pressure on the fixed damping member and the elastic gasket; The projections of the rotating shaft, the fixed damping member, the movable damping member, the elastic gasket and the locking nut along the axial direction of the rotating shaft are located within the height dimension range of the bracket.

2. The damping shaft mechanism according to claim 1, characterized in that: The support comprises: A connecting seat, used to connect to the first body; A support arm, the support arm is connected to the connecting seat, and the support arm has a first pivot hole and a positioning hole; The fixed damping member has a second pivot hole, and the fixed damping member has a positioning portion, and the positioning portion is arranged away from the center of the second pivot hole; The rotating shaft passes through the first pivot hole and the second pivot hole and is pivotable, and the positioning portion is positioned and matched with the positioning hole.

3. The damping shaft mechanism according to claim 2, characterized in that: A limiting structure is also provided between the rotating shaft and the bracket to limit the angular range of rotation of the rotating shaft relative to the bracket.

4. The damping shaft mechanism according to claim 3, characterized in that: The limiting structure comprises a limiting piece, which is sleeved on the rotating shaft and fixed relative to the rotating shaft in the circumferential direction; An arc-shaped limiting groove is arranged on the periphery of the limiting piece, and a limiting portion is arranged on the bracket. The limiting portion is located in the arc-shaped limiting groove. When the rotating shaft and the bracket rotate relatively, the limiting portion slides relatively in the arc-shaped limiting groove.

5. The damping shaft mechanism according to claim 4, characterized in that: The limiting plate is located on one side of the support arm in the axial direction of the rotating shaft, and the fixed damping member is located on the other side of the support arm in the axial direction of the rotating shaft.

6. The damping shaft mechanism according to claim 1, characterized in that: The groove has an inclined surface on both sides in the circumferential direction, respectively, for guiding the protrusion to slide out of the groove.

7. The damping shaft mechanism according to claim 4, characterized in that: The rotating shaft comprises a rod portion and a loading portion, the rod portion comprises a smooth surface segment and a threaded segment connected to each other, the loading portion is located at one end of the smooth surface segment away from the threaded segment, and is used to connect to the second body; The limiting piece, the bracket, the fixed damping member and the movable damping member are sleeved on the smooth surface section, and the locking nut is threadably matched with the threaded section.

8. The damping shaft mechanism according to claim 7, characterized in that: The cross section of the rod is formed into a non-circular cross section, the limiting plate has a first non-circular hole sleeved with the rod, and the movable damping member has a second non-circular hole sleeved with the rod; The first non-circular hole and the second non-circular hole are both adapted to the non-circular cross section, so that the limiting plate, the movable damping member and the rotating shaft are relatively fixed in the circumferential direction.

9. The damping shaft mechanism according to claim 7, characterized in that: The loading part is a cylinder, and the height of the bracket is not greater than the diameter of the cylinder; The outer peripheral surface of the cylinder has a cutting plane formed by axial cutting, and the maximum vertical distance between the cutting plane and the outer peripheral surface of the cylinder is less than or equal to the height of the bracket.

10. The damping shaft mechanism according to claim 1, characterized in that: There are two grooves and two protrusions, the two grooves correspond to the two protrusions one by one, and each groove matches the corresponding protrusion.

11. An electronic device, characterized in that: include: First subject; Second subject; According to any one of claims 1 to 10, the first body is fixedly connected to the bracket, and the second body is fixedly connected to the shaft.

Images