Rotating shaft assembly

Abstract

The utility model discloses a rotating shaft assembly which comprises a base used for being installed on a first component and a sliding block with one end used for being connected with a second component, and the base comprises a first base plate and a second base plate which are parallel and opposite to each other in a spaced mode. The outer side face of a sliding block arranged between the first base plate and the second base plate is in sliding fit with the inner side surface of the first base plate and the inner side surface of the second base plate through a set of arc-shaped grooves and arc-shaped protruding strips, and the other end, away from the second component, of the sliding block is provided with a torsion pin shaft. A plurality of torsion sheets which are sequentially arranged in the axial direction of the torsion pin shaft and the sliding pin shaft are connected between the torsion pin shaft and the sliding pin shaft, wherein the two ends of the torsion pin shaft are tightly connected with the sliding blocks respectively. According to the rotating shaft assembly, self-locking can be achieved, unnecessary opening of the second component is avoided, stable torsion can be provided to guarantee stability in the repeated rotating process, meanwhile, abrasion consistency in the forward and reverse rotating process is guaranteed, and using stability and smoothness are further optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to a pivot assembly and belongs to the technical field of support pivot. BACKGROUND

[0002] At present, the pivot is usually applied in the fields of electronic products, home decoration industry, seat industry and the like, and the pivot needs to rotate and fix an angle. The common pivot assembly generally only rotates and fixes an angle through friction force, but in such a pivot assembly, the friction force is limited, and repeated rotation is not stable enough, especially the pivot of the tablet computer in the consumer electronic product, which needs to rotate and fix an angle, adjust easily, realize self-locking, use stably and smoothly, and the existing pivot assembly cannot meet the above requirements. SUMMARY

[0003] The utility model discloses a kind of pivot assemblies, which can realize self-locking, ensure stability during repeated rotation, and ensure consistency of wear during forward and reverse rotation, optimize stability and smoothness of use.

[0004] To achieve the above object, the utility model adopts the technical scheme of a pivot assembly, comprising: a base for mounting on a first component and a slider connected to a second component at one end, the base includes parallel and spaced opposing first base plate, second base plate, the outer side surface of the slider arranged between the first base plate and the second base plate is slidably connected with the inner side surface of the first base plate and the second base plate through a set of arc-shaped grooves and arc-shaped protrusions.

[0005] The base includes parallel and spaced opposing first base plate, second base plate, the outer side surface of the slider arranged between the first base plate and the second base plate is slidably connected with the inner side surface of the first base plate and the second base plate through a set of arc-shaped grooves and arc-shaped protrusions, the inner side surface of the first base plate and the second base plate each has a strip-shaped guide groove extending in the length direction, and a sliding pin shaft is slidably inserted into the strip-shaped guide groove at both ends, a torsion pin shaft is installed at the other end of the slider away from the second component, and the torsion pin shaft and the sliding pin shaft connected at both ends of the slider are connected with a plurality of torsion sheets arranged in the axial direction of the torsion pin shaft and the sliding pin shaft.

[0006] The torsion sheet further comprises: an annular end portion sleeved outside the sliding pin shaft, a strip-shaped connecting portion connected with the annular end portion, and a first arc-shaped portion and a second arc-shaped portion oppositely arranged at the other end of the strip-shaped connecting portion, the first arc-shaped portion, the strip-shaped connecting portion and the second arc-shaped portion form a holding area matched with the torsion pin shaft, the first arc-shaped portion and the second arc-shaped portion each have a gap between one end away from the strip-shaped connecting portion, the side wall of the corresponding area of the holding area and the strip-shaped connecting portion is a plane, and the distance between the plane and the axis of the torsion pin shaft installed in the holding area is less than the radius of the torsion pin shaft, and the outer circumferential surface of the torsion pin shaft is provided with a tangent plane corresponding to the plane side wall of the holding area.

[0007] The further improved scheme in the above technical solution is as follows:

[0008] 1. In the above scheme, the tangent planes are distributed along the axial direction of the torsion pin shaft.

[0009] 2. In the above scheme, the tangent planes are arranged at the two ends of the torsion pin shaft close to the sliding block.

[0010] 3. In the above scheme, the outer side surface of each of the first base plate and the second base plate is provided with an outwardly extending connecting lug, and each connecting lug is connected with the first component by at least one screw.

[0011] 4. In the above scheme, the inner side surface of each of the first base plate and the second base plate is provided with at least one inwardly extending rib, and the two oppositely close ribs are connected by lap joint or welding joint.

[0012] 5. In the above scheme, one end of the strip-shaped guide groove is arranged close to the arc-shaped groove or the arc-shaped protrusion, and the other end of the strip-shaped guide groove extends away from the arc-shaped groove or the arc-shaped protrusion.

[0013] Due to the use of the above technical solution, the utility model has the following advantages compared with the prior art:

[0014] The utility model discloses a pivot assembly, the other end of its sliding block away from the second component is installed with a torsion pin shaft, and the torsion pin shaft that is tightly connected with the sliding pin shaft between the two ends is connected with a plurality of torsion pieces that are sequentially arranged along the axial direction of the torsion pin shaft and the sliding pin shaft, and the torsion piece further comprises: an annular end portion that is sleeved on the outside of the sliding pin shaft, a strip-shaped connecting portion that is connected with the annular end portion at one end, and a first arc-shaped portion and a second arc-shaped portion that are oppositely arranged at the other end of the strip-shaped connecting portion, the first arc-shaped portion, the strip-shaped connecting portion and the second arc-shaped portion enclose a holding area that cooperates with the torsion pin shaft, there is a gap between the ends of the first arc-shaped portion and the second arc-shaped portion that are away from the strip-shaped connecting portion respectively, the side wall of the corresponding area of the holding area and the strip-shaped connecting portion is a plane, and the distance between the plane and the axis of the torsion pin shaft that is installed in the holding area is less than the radius of the torsion pin shaft, and a tangent plane that corresponds to the plane side wall of the holding area is arranged on the outer circumferential surface of the torsion pin shaft, through the cooperation between the torsion piece and the torsion pin shaft, self-locking can be realized when the second component and the first component are rotationally attached to avoid unnecessary opening of the second component, stable torsion can be provided when the second component is rotated away from the first component to ensure stability in the repeated rotation process, and the consistency of wear during forward and reverse rotation is ensured, and the stability and smoothness of use are further optimized. BRIEF DESCRIPTION OF DRAWINGS

[0015] ATTACHED Figure 1 It is a structure schematic view of the pivot assembly of the utility model rotating.

[0016] ATTACHED Figure 2 It is a structure schematic view of the pivot assembly of the utility model rotating. Figure 1 It is a side sectional view of the pivot assembly along the line B-B in the attached Figure 1 .

[0017] ATTACHED Figure 3 It is a side sectional view of the pivot assembly along the line B-B in the attached Figure 2 .

[0018] ATTACHED Figure 4 It is a structure schematic view of the pivot assembly of the utility model not rotating.

[0019] ATTACHED Figure 5 It is a structure schematic view of the pivot assembly of the utility model not rotating. Figure 4 It is a side sectional view of the pivot assembly along the line C-C in the attached Figure 4 .

[0020] ATTACHED Figure 6 It is a side sectional view of the pivot assembly along the line C-C in the attached Figure 5 .

[0021] ATTACHED Figure 7 It is a side view structure schematic view of the pivot assembly of the utility model rotating.

[0022] ATTACHED Figure 8 It is a structure schematic view of the torsion piece in the pivot assembly of the utility model.

[0023] In the above figures: 1. Base; 2. Slider; 3. First substrate; 4. Second substrate; 51. Arc-shaped groove; 52. Arc-shaped protrusion; 6. Cutting plane; 71. Connecting ear; 72. Rib; 81. Strip guide groove; 82. Sliding pin; 9. Torque pin; 10. Torque plate; 11. Annular end; 12. Strip connecting part; 131. First arc-shaped part; 132. Second arc-shaped part; 14. Holding area; 15. Gap. Detailed Implementation

[0024] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0025] Example 1: A rotating shaft assembly includes: a base 1 for mounting on a first component and a slider 2 for connecting to a second component at one end. The base 1 includes a first substrate 3 and a second substrate 4 that are parallel and spaced apart from each other. The outer side of the slider 2, which is disposed between the first substrate 3 and the second substrate 4, is slidably engaged with the inner side surfaces of the first substrate 3 and the second substrate 4 by a set of arc-shaped grooves 51 and arc-shaped protrusions 52.

[0026] The base 1 includes a first substrate 3 and a second substrate 4 that are parallel and spaced apart from each other. The outer side of the slider 2, which is disposed between the first substrate 3 and the second substrate 4, is slidably engaged with the inner side surfaces of the first substrate 3 and the second substrate 4 through a set of arc-shaped grooves 51 and arc-shaped protrusions 52. A strip-shaped guide groove 81 extending along its length direction is formed on the inner side surface of the first substrate 3 and the second substrate 4 on the side of the slider 2 opposite to the second component. The two ends of a sliding pin 82 are slidably embedded in the strip-shaped guide groove 81. A torque pin 9 is installed at the other end of the slider 2 away from the second component. A plurality of torque plates 10 are connected between the torque pin 9, which is tightly connected to the slider 2 at both ends, and the sliding pin 82. The torque pin 9 and the sliding pin 82 are arranged in sequence along the axial direction of the torque pin 9 and the sliding pin 82.

[0027] The torque plate 10 further includes: an annular end 11 fitted on the outside of the sliding pin 82, a strip-shaped connecting portion 12 connected to the annular end 11 at one end, and a first arc-shaped portion 131 and a second arc-shaped portion 132 disposed opposite to each other at the other end of the strip-shaped connecting portion 12. The first arc-shaped portion 131, the strip-shaped connecting portion 12 and the second arc-shaped portion 132 form a holding area 14 that cooperates with the torque pin 9. There is a gap 15 between the ends of the first arc-shaped portion 131 and the second arc-shaped portion 132 that are away from the strip-shaped connecting portion 12. The sidewall of the area corresponding to the area of ​​the holding area 14 and the strip-shaped connecting portion 12 is a plane and the distance between the plane and the axis of the torque pin 9 installed in the holding area 14 is less than the radius of the torque pin 9. A tangent plane 6 corresponding to the planar sidewall of the holding area 14 is provided on the outer circumferential surface of the torque pin 9.

[0028] Each of the first substrate 3 and the second substrate 4 has an outwardly extending connecting ear 71 on its outer surface, and each connecting ear 71 is connected to the first component by at least one screw.

[0029] Each of the first substrate 3 and the second substrate 4 has at least one inwardly extending rib 72 on its inner surface, and the two ribs 72 facing each other are connected by overlapping.

[0030] One end of the strip guide groove 81 is located close to the arc-shaped groove 51 or the arc-shaped protrusion 52, and the other end of the strip guide groove 81 extends away from the arc-shaped groove 51 or the arc-shaped protrusion 52.

[0031] Example 2: A rotating shaft assembly includes: a base 1 for mounting on a first component and a slider 2 for connecting to a second component at one end. The base 1 includes a first substrate 3 and a second substrate 4 that are parallel and spaced apart from each other. The outer side of the slider 2, which is disposed between the first substrate 3 and the second substrate 4, is slidably engaged with the inner side surfaces of the first substrate 3 and the second substrate 4 by a set of arc-shaped grooves 51 and arc-shaped protrusions 52.

[0032] The base 1 includes a first substrate 3 and a second substrate 4 that are parallel and spaced apart from each other. The outer side of the slider 2, which is disposed between the first substrate 3 and the second substrate 4, is slidably engaged with the inner side surfaces of the first substrate 3 and the second substrate 4 through a set of arc-shaped grooves 51 and arc-shaped protrusions 52. A strip-shaped guide groove 81 extending along its length direction is formed on the inner side surface of the first substrate 3 and the second substrate 4 on the side of the slider 2 opposite to the second component. The two ends of a sliding pin 82 are slidably embedded in the strip-shaped guide groove 81. A torque pin 9 is installed at the other end of the slider 2 away from the second component. A plurality of torque plates 10 are connected between the torque pin 9, which is tightly connected to the slider 2 at both ends, and the sliding pin 82. The torque pin 9 and the sliding pin 82 are arranged in sequence along the axial direction of the torque pin 9 and the sliding pin 82.

[0033] The torque plate 10 further includes: an annular end 11 fitted on the outside of the sliding pin 82, a strip-shaped connecting portion 12 connected to the annular end 11 at one end, and a first arc-shaped portion 131 and a second arc-shaped portion 132 disposed opposite to each other at the other end of the strip-shaped connecting portion 12. The first arc-shaped portion 131, the strip-shaped connecting portion 12 and the second arc-shaped portion 132 form a holding area 14 that cooperates with the torque pin 9. There is a gap 15 between the ends of the first arc-shaped portion 131 and the second arc-shaped portion 132 that are away from the strip-shaped connecting portion 12. The sidewall of the area corresponding to the area of ​​the holding area 14 and the strip-shaped connecting portion 12 is a plane and the distance between the plane and the axis of the torque pin 9 installed in the holding area 14 is less than the radius of the torque pin 9. A tangent plane 6 corresponding to the planar sidewall of the holding area 14 is provided on the outer circumferential surface of the torque pin 9.

[0034] The aforementioned cutting planes 6 are distributed at intervals along the axial direction of the torque pin 9; the aforementioned cutting planes 6 are located at both ends of the torque pin 9 near the slider 2.

[0035] Each of the first substrate 3 and the second substrate 4 has an outwardly extending connecting ear 71 on its outer surface, and each connecting ear 71 is connected to the first component by at least one screw.

[0036] At least one inwardly extending rib 72 is provided on the inner surface of each of the first substrate 3 and the second substrate 4, and the two ribs 72 facing each other are welded together.

[0037] During assembly:

[0038] First, position and assemble the torque pin and the slider through the flat fit. Then, press one end of the torque plate with the torque pin installed on the slider, and at the same time assemble the other end of the torque plate with the sliding pin.

[0039] Next, the slider is screwed in and the sliding pin is installed into the base. At this time, the first substrate and the second substrate of the base are in an independent state.

[0040] Finally, the base is connected as a whole by screwing and welding the ribs on the first and second substrates together.

[0041] In practical use:

[0042] The base of the assembled pivot assembly is installed on the first component, and then the slider is connected to the second component. The second component drives the slider to rotate so that the second component can open to support the first component or close to fit the first component.

[0043] When the second component and the slider that rotates with the second component are at the 0° position, the tangential plane on the torsion pin shaft is completely opposite to the planar sidewall of the holding area on the torsion plate and there is no mutual interference between them.

[0044] As the second component and the slider that rotates with the second component rotate from the 0° position to a certain angle (such as 15°), the circumferential surface of the torque pin itself gradually rotates towards the planar sidewall of the holding area, causing the mutual interference area between the torque pin and the planar sidewall of the holding area to gradually increase until the tangential plane on the torque pin completely rotates out of the planar sidewall of the holding area, and the torque generated by the torque plate gradually increases, forming the torque climbing stage.

[0045] As the second component and the slider that rotates with the second component continue to rotate from one angle (e.g., 15°) to another angle (e.g., 57°), the interference area between the circumferential surface of the torque pin itself and the planar sidewall of the holding area remains stable, and the torque generated by the torque plate is constant.

[0046] Correspondingly, during the rotation and closing process of the second component and the slider that rotates with the second component, the torque will first be constant, and then the torque will gradually decrease until the tangential plane on the torque pin is completely opposite to the planar sidewall of the holding area on the torque plate and there is no mutual interference between the two.

[0047] When the above-mentioned rotating shaft assembly is used, the cooperation between the torque plate and the torque pin can achieve self-locking when the second part rotates and fits with the first part to avoid unnecessary opening of the second part, and can also provide stable torque when the second part rotates away from the first part to ensure stability during repeated rotation. At the same time, it can ensure the consistency of wear during forward and reverse rotation, and further optimize the stability and smoothness of use.

[0048] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A rotating shaft assembly, comprising: The base (1) for mounting on the first component and the slider (2) for connecting to the second component at one end are characterized in that: the base (1) includes a first substrate (3) and a second substrate (4) that are parallel and spaced apart from each other; the outer side of the slider (2) disposed between the first substrate (3) and the second substrate (4) is slidably engaged with the inner side surfaces of the first substrate (3) and the second substrate (4) by a set of arc-shaped grooves (51) and arc-shaped protrusions (52); The base (1) includes a first substrate (3) and a second substrate (4) that are parallel and spaced apart. The outer side of the slider (2) disposed between the first substrate (3) and the second substrate (4) is slidably engaged with the inner side surfaces of the first substrate (3) and the second substrate (4) through a set of arc-shaped grooves (51) and arc-shaped protrusions (52). A strip-shaped guide groove (81) extending along its length is opened on the inner side surface of the first substrate (3) and the second substrate (4) on the side of the slider (2) opposite to the second component. The two ends of a sliding pin (82) are slidably embedded in the strip-shaped guide groove (81). A torque pin (9) is installed at the other end of the slider (2) away from the second component. A plurality of torque plates (10) are connected between the torque pin (9) and the sliding pin (82) which are tightly connected to the slider (2) at both ends. The torque plate (10) further includes: an annular end (11) fitted on the outside of the sliding pin (82), a strip-shaped connecting part (12) connected to the annular end (11) at one end, and a first arc-shaped part (131) and a second arc-shaped part (132) disposed opposite to each other at the other end of the strip-shaped connecting part (12). The first arc-shaped part (131), the strip-shaped connecting part (12), and the second arc-shaped part (132) form a holding area (14) that cooperates with the torque pin (9). There is a gap (15) between the ends of the arc-shaped part (131) and the second arc-shaped part (132) that are away from the strip-shaped connecting part (12). The sidewall of the area corresponding to the holding area (14) and the strip-shaped connecting part (12) is a plane and the distance between the plane and the axis of the torsion pin (9) installed in the holding area (14) is less than the radius of the torsion pin (9). A tangent plane (6) corresponding to the planar sidewall of the holding area (14) is provided on the outer circumference of the torsion pin (9).

2. The rotating shaft assembly according to claim 1, characterized in that: The cutting planes (6) are distributed at intervals along the axial direction of the torsion pin (9).

3. The rotating shaft assembly according to claim 2, characterized in that: The cutting plane (6) is located at both ends of the torque pin (9) near the slider (2).

4. The rotating shaft assembly according to claim 1, characterized in that: Each of the first substrate (3) and the second substrate (4) has an outwardly extending connecting ear (71) on its outer surface, and each connecting ear (71) is connected to the first component by at least one screw.

5. The rotating shaft assembly according to claim 1, characterized in that: The first substrate (3) and the second substrate (4) each have at least one inwardly extending rib (72) on their inner surfaces, and the two ribs (72) facing each other are connected by overlapping or welding.

6. The rotating shaft assembly according to claim 1, characterized in that: One end of the strip guide groove (81) is located close to the arc groove (51) or the arc protrusion (52), and the other end of the strip guide groove (81) extends away from the arc groove (51) or the arc protrusion (52).

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