Rotating shaft mechanism for electronic product
By using the arc-shaped fit between the slider and the substrate and the design of the torque pin, the stability and wear problems of the electronic product hinge at a fixed angle are solved, achieving stable support and reduced wear at any angle.
Patent Information
- Application Number
- CN202520706838.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-15
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-04-15
AI Technical Summary
The hinges used in existing electronic products lack stability when rotating at a fixed angle and suffer severe wear after prolonged use.
The sliding engagement between the slider and the substrate is achieved through an arc-shaped groove and an arc-shaped protrusion, combined with an interference fit between the torque pin and the torque plate. The outer side of the torque plate is filled with grease to provide stable torque, ensuring stability at any angle and reducing wear.
It achieves stability under any angle, while reducing component wear and optimizing the stability and smoothness of use.
Smart Images

Figure CN223894745U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a rotating shaft mechanism for electronic products, belonging to the field of bracket rotating shaft technology. Background Technology
[0002] Currently, hinges are commonly used in electronics, home improvement, and seating industries, requiring a fixed angle of rotation. Common electronic product hinges, especially those in consumer electronics like tablets, require a fixed angle of rotation, stable operation, and minimal wear on related components during prolonged use. Existing electronic product hinge mechanisms cannot meet these requirements. Utility Model Content
[0003] The purpose of this invention is to provide a hinge mechanism for electronic products. This hinge mechanism can ensure the stability of the support state at any angle, and can greatly reduce the wear of related components caused by repeated rotation, thereby optimizing the stability and smoothness of use.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a rotating shaft mechanism for electronic products, comprising: a base for mounting on a first component and a slider at one end for connecting to a second component. The base comprises a first substrate and a second substrate that are parallel and spaced apart from each other. The outer side of the slider disposed between the first substrate and the second substrate and the inner side surfaces of the first substrate and the second substrate are slidably engaged with each other through a set of arc-shaped grooves and arc-shaped protrusions.
[0005] On the inner surface of each of the first and second substrates, and on the side of the slider opposite to the second component, there is a strip-shaped guide groove extending along its length. Both ends of a sliding pin are slidably embedded in the strip-shaped guide groove. A torque pin is installed at the other end of the slider away from the second component. Between the torque pin and the sliding pin, which are respectively tightly connected at both ends to the slider, there are several torque plates arranged sequentially along the axial direction of the torque pin and the sliding pin. One end of the torque plate is fitted onto the outside of the torque pin and is interference-fitted with the torque pin. A spirally extending linear groove is formed on the outer surface of the torque pin, and the linear groove is filled with grease.
[0006] The following are further improvements to the above technical solution:
[0007] 1. In the above solution, the torque plate further includes: an annular end fitted on the outside of the sliding pin, a strip-shaped connecting portion with one end connected to the annular end, and a first arc-shaped portion and a second arc-shaped portion disposed opposite to each other 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 that is interference-fitted with the torque pin. 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.
[0008] 2. In the above scheme, each of the first substrate and the second substrate has an outwardly extending connecting ear on its outer surface, and each connecting ear is connected to the first component by at least one screw.
[0009] 3. In the above scheme, at least one inwardly extending rib is provided on the inner surface of each of the first substrate and the second substrate, and the two ribs facing each other are connected by overlapping or welding.
[0010] 4. In the above scheme, one end of the strip guide groove is located close to the arc-shaped groove or arc-shaped protrusion, and the other end of the strip guide groove extends away from the arc-shaped groove or arc-shaped protrusion.
[0011] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0012] This utility model relates to a rotating shaft mechanism for electronic products. The outer surface of a slider disposed between a first substrate and a second substrate is slidably engaged with the inner surfaces of both substrates via a set of arc-shaped grooves and arc-shaped protrusions. On the inner surfaces of both substrates, on the side of the slider opposite to the second component, a strip-shaped guide groove extending along its length is formed. Both ends of a sliding pin are slidably embedded in the strip-shaped guide groove. A torque pin is mounted on the other end of the slider away from the second component. The torque pin, whose two ends are tightly connected to the slider, is connected to the sliding pin. Several torque plates are arranged sequentially along the axial direction of the torque pin and the sliding pin. One end of the torque plate is fitted onto the outside of the torque pin and is interference-fitted with the torque pin. A spirally extending linear groove is opened on the outer surface of the torque pin. The linear groove is filled with grease. Through the cooperation between the torque plate and the torque pin, a stable torque can be provided when the second part is rotated away from the first part to ensure the stability of the state between the second part and the first part at any angle. It can also greatly reduce the wear of related parts caused by repeated rotation, and further optimize the stability and smoothness of use. Attached Figure Description
[0013] Appendix Figure 1 This is a schematic diagram of the structure of the rotating shaft mechanism for electronic products of this utility model under one state;
[0014] Appendix Figure 2 This is a schematic diagram of the rotating shaft mechanism for electronic products of this utility model under another state.
[0015] Appendix Figure 3 This is a partial structural schematic diagram of the rotating shaft mechanism for electronic products according to this utility model;
[0016] Appendix Figure 4 This is a partially enlarged view of the torque plate in the rotating shaft mechanism for electronic products of this utility model;
[0017] Appendix Figure 5 This is a partially enlarged view of the torque pin in the rotating shaft mechanism for electronic products of this utility model.
[0018] In the above figures: 1. Base; 2. Slider; 3. First base plate; 4. Second base plate; 51. Arc-shaped groove; 52. Arc-shaped protrusion; 6. Linear groove; 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
[0019] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.
[0020] Example 1: A rotating shaft mechanism for electronic products 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 through a set of arc-shaped grooves 51 and arc-shaped protrusions 52.
[0021] On the inner surface of each of the first substrate 3 and the second substrate 4, and on the side of the slider 2 opposite to the second component, there is a strip-shaped guide groove 81 extending along its length. Both 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. Between the torque pin 9 and the sliding pin 82, which are tightly connected at both ends to the slider 2, there are several torque plates 10 arranged sequentially along the axial direction of the torque pin 9 and the sliding pin 82. One end of the torque plate 10 is fitted onto the outside of the torque pin 9 and is press-fitted with the torque pin 9. A spirally extending linear groove 6 is formed on the outer surface of the torque pin 9, and the linear groove 6 is filled with grease.
[0022] 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.
[0023] 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.
[0024] Example 2: A rotating shaft mechanism for electronic products 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 through a set of arc-shaped grooves 51 and arc-shaped protrusions 52.
[0025] On the inner surface of each of the first substrate 3 and the second substrate 4, and on the side of the slider 2 opposite to the second component, there is a strip-shaped guide groove 81 extending along its length. Both 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. Between the torque pin 9 and the sliding pin 82, which are tightly connected at both ends to the slider 2, there are several torque plates 10 arranged sequentially along the axial direction of the torque pin 9 and the sliding pin 82. One end of the torque plate 10 is fitted onto the outside of the torque pin 9 and is press-fitted with the torque pin 9. A spirally extending linear groove 6 is formed on the outer surface of the torque pin 9, and the linear groove 6 is filled with grease.
[0026] The aforementioned 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 is interference-fitted with the torque pin 9. A gap 15 is provided 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.
[0027] 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.
[0028] 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.
[0029] During assembly:
[0030] First, fill the linear groove on the outer surface of the torque pin with grease, and then position and assemble the torque pin and the slider through the flat fit.
[0031] Next, press one end of the torque plate into the torque pin mounted on the slider, and at the same time assemble the other end of the torque plate into the sliding pin.
[0032] 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.
[0033] Finally, the base is connected as a whole by screwing and welding the ribs on the first and second substrates together.
[0034] In practical use:
[0035] The assembled electronic product is mounted on the base of the rotating mechanism onto 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.
[0036] During the process of the second component and the slider that rotates with the second component rotating from the 0° position to a certain angle to achieve the second component supporting the first component, the torque pin that is interference-fitted with the torque plate rotates in the holding area of the torque plate to generate torque, thereby providing stable support force for the bracket at any angle.
[0037] When the above-mentioned rotating shaft mechanism for electronic products is adopted, the cooperation between the torque plate and the torque pin can provide stable torque when the second component rotates away from the first component to ensure the stability of the state between the second component and the first component at any angle. It can also greatly reduce the wear of related components caused by repeated rotation, and further optimize the stability and smoothness of use.
[0038] 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 mechanism for electronic products, 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); On the inner surface of the first substrate (3) and the second substrate (4) respectively, and on the side of the slider (2) opposite to the second component, there is a strip-shaped guide groove (81) extending along its length direction. The two ends of a sliding pin (82) are slidably embedded in the strip-shaped guide groove (81). A torque pin (9) is installed on the other end of the slider (2) away from the second component. The torque pin (9) and the sliding pin (82) are connected by a number of torque plates (10) arranged sequentially along the axial direction of the torque pin (9) and the sliding pin (82). One end of the torque plate (10) is fitted on the outside of the torque pin (9) and is press-fitted with the torque pin (9). A spirally extending linear groove (6) is opened on the outer surface of the torque pin (9). The linear groove (6) is filled with grease.
2. The rotating shaft mechanism for electronic products according to claim 1, characterized in that: The torque plate (10) further includes: an annular end (11) fitted on the outside of the sliding pin (82), a strip 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 connecting part (12). The first arc-shaped part (131), the strip connecting part (12) and the second arc-shaped part (132) form a holding area (14) that is interference-fitted with the torque pin (9). There is a gap (15) between the ends of the first arc-shaped part (131) and the second arc-shaped part (132) that are away from the strip connecting part (12).
3. The rotating shaft mechanism for electronic products according to claim 1 or 2, 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.
4. The rotating shaft mechanism for electronic products according to claim 1 or 2, 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.
5. The rotating shaft mechanism for electronic products according to claim 1 or 2, 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).