Locking hinge

Abstract

This invention provides a locking hinge, comprising a damping clasp and a rotating rod. The damping clasp includes a base and two jaws, each jaw having a connecting body and an end. The base is connected to one end of the connecting body, and the end is located at the other end of the connecting body. The two jaws are spaced apart, with the gap between the two connecting bodies forming a damping groove, and the gap between the two ends forming a notch. The rotating rod has a damping portion and a locking portion on its outer circumferential surface. The locking portion has a flat surface, and the damping portion has an arc surface. The rotating rod rotatably engages with the damping clasp. The rotating rod can rotate around its axis toward the open position, causing the arc surface to abut against the end, thus elastically deforming the jaws. The connecting body can drive the end to move, increasing the notch. The rotating rod can rotate around its axis toward the closed position, causing the end to slide along the arc surface to the flat surface, thus elastically restoring the jaws. The connecting body can drive the end to move, decreasing the notch. This locking hinge improves the positioning effect on the display.

Description

Technical Field

[0001] This invention relates to the field of hinge technology, and in particular to a locking hinge. Background Technology

[0002] The laptop features a rotatable stand and a monitor. The keyboard is mounted on the stand, and the monitor can rotate relative to the stand to an open position, allowing the user to view the displayed content and use the keyboard. The monitor can also rotate relative to the stand to a closed position for easy carrying. The stand and monitor are connected by a hinge, allowing for relative rotation. However, in existing technology, the hinge's positioning of the monitor is poor, making it difficult to keep the monitor in the closed position. During laptop carrying, the monitor may rotate at unexpected times, potentially causing damage to the laptop. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a locking hinge that can improve the positioning effect of the display.

[0004] This invention provides a locking hinge, which includes a damping clasp and a rotating rod. The damping clasp includes a base and two jaws, each jaw having a connecting body and an end. The base is connected to one end of the connecting body, and the end is located at the other end of the connecting body. The two jaws are arranged at intervals, such that the interval between the two connecting bodies forms a damping groove, and the interval between the two ends forms a notch connecting the damping groove. The rotating rod has a damping part and a locking part arranged circumferentially on its outer circumferential surface. The locking part has a flat surface, and the damping part has an arc surface. The flat surface connects to the arc surface. The rotating rod passes through the damping groove and rotates in cooperation with the damping clasp. The rotating rod can rotate about its axis toward the open position, causing the arc surface to abut against the end, so that the jaws elastically deform. The connecting body can drive the two ends to move in opposite directions, so that the notch increases. The rotating rod can rotate about its axis toward the closed position, causing the end to slide along the arc surface to the flat surface, so that the jaws elastically recover. The connecting body can drive the two ends to move relative to each other, so that the notch decreases. One of the damping clasp and the rotating rod is used to connect to the base, and the other is used to connect to the display.

[0005] The locking hinge of the present invention has at least the following beneficial effects: When the rotating rod rotates relative to the damping ring, it drives the base to rotate relative to the monitor. When the rotating rod rotates to the open position, the damping part on the outer circumference of the rotating rod can push the clamping claw of the damping ring to elastically deform, increasing the clamping force applied by the damping claw to the rotating rod. This increases the damping when the base and monitor rotate relative to each other, thus keeping the base and monitor in the open position. When the rotating rod rotates to the closed position, the claw can slide from the damping part to the locking part. When the claw slides to the locking part, the claw elastically returns to its original position, reducing the clamping force on the rotating base, thereby reducing the damping when the base and monitor rotate relative to each other. During the rotation from the closed position to the open position, the rotating rod needs to overcome the elastic force applied by the damping ring so that the damping ring can restrict the rotation of the rotating rod from the closed position to the open position, thus keeping the monitor and base in the closed position and improving the positioning effect of the monitor.

[0006] In one embodiment of this implementation, a mounting base is also included. The base is connected to the mounting base. A limiting groove is provided on the mounting base. A limiting protrusion is provided on the rotating rod. The limiting groove has two limiting sidewalls. The two limiting sidewalls are arranged circumferentially along the axis. The limiting protrusion extends radially along the rotating rod to enter the limiting groove. The rotating rod can be rotated until the limiting protrusion abuts against the limiting sidewall.

[0007] In one embodiment of this implementation, the damping groove passes through the damping ring along the axial direction, the arc surface is a conical surface, and the plane is parallel to the generatrix of the conical surface. The damping ring is rotatably engaged with the conical surface, and the rotating rod is movably connected to the damping ring. The rotating rod can move in a direction parallel to the axial direction to change the relative position of the damping ring and the conical surface.

[0008] In one embodiment of this implementation, the locking hinge further includes a mounting base, on which a damping ring is movably disposed and threadedly engaged with a rotating rod. The rotating rod is rotatably connected to the mounting base, and can rotate around an axis, thereby causing the damping ring to move along the axial direction to change the relative position of the damping ring and the conical surface.

[0009] In one embodiment of this implementation, the locking hinge further includes a mounting base, and the locking hinge includes a plurality of damping rings, which are detachably connected to the mounting base. The plurality of damping rings are arranged along the axial direction so that the damping grooves of the plurality of damping rings are connected.

[0010] In one embodiment of this implementation, the locking hinge further includes an adjustment component, a damping ring is rotatably connected to the mounting base, multiple damping rings can rotate relative to each other about an axis and multiple notches are arranged circumferentially, the adjustment component is mounted on the mounting base and is used to limit the rotation of the damping rings, and during the rotation of the rotating rod, the plane can sequentially abut against the ends of multiple damping rings.

[0011] In one embodiment of this implementation, magnetic elements are provided on both the limiting sidewall and the limiting protrusion, and the magnetic elements on the limiting sidewall can attract the magnetic elements on the limiting protrusion.

[0012] In one embodiment of this implementation, the rotating rod is provided with an oil reservoir for storing lubricating oil to provide lubrication for the relative rotation of the rotating rod and the damping retainer ring.

[0013] In one embodiment of this implementation, the oil storage tank extends spirally around an axis.

[0014] In one embodiment of this implementation, a plurality of strip grooves are provided on the outer peripheral surface of the rotating rod. The strip grooves extend in a direction parallel to the axis and are arranged circumferentially. The strip grooves are used to cooperate with the display or the base.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a three-dimensional structural schematic diagram of a locking hinge according to one embodiment of the present invention; Figure 2 yes Figure 1 A disassembly diagram of the locking hinge; Figure 3 yes Figure 1 A schematic diagram of the rotating rod in the closed position; Figure 4 yes Figure 1 A schematic diagram of the rotating rod in the open position; Figure 5 yes Figure 1 A schematic diagram showing the positions of multiple damping rings after rotation.

[0017] Figure label: Locking hinge 100; damping ring 10; base 11; gripper 12; connector 121; end 122; damping groove 13; arc inner wall 131; notch 14; rotating rod 20; damping part 21; arc surface 211; locking part 22; flat surface 221; limiting protrusion 23; oil reservoir 24; strip groove 25; mounting base 26; limiting groove 261; limiting side wall 2611; mounting groove 262; mounting hole 263. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0020] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0022] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0024] Please see Figures 1 to 4 , Figure 1 This is a three-dimensional structural schematic diagram of the locking hinge 100 according to one embodiment of the present invention; Figure 2 yes Figure 1 A disassembly diagram of the locking hinge 100; Figure 3 yes Figure 1A schematic diagram of the rotating rod 20 in the closed position; Figure 4 yes Figure 1 A schematic diagram of the rotating rod 20 in the open position. This embodiment of the invention provides a locking hinge 100, which includes a damping ring 10 and a rotating rod 20. The damping ring 10 includes a base 11 and two grippers 12. Each gripper 12 has a connecting body 121 and an end 122. The base 11 is connected to one end of the connecting body 121, and the end 122 is located at the other end of the connecting body 121. The two grippers 12 are spaced apart, such that the gap between the two connecting bodies 121 forms a damping groove 13, and the gap between the two ends 122 forms a notch 14 communicating with the damping groove 13. The rotating rod 20 has a damping portion 21 and a locking portion 22 arranged circumferentially on its outer peripheral surface. The locking portion 22 has a flat surface 221, and the damping portion 21 has an arc surface 211. The flat surface 221 connects to the arc surface 211. The rotating rod 20... The damping rod 20 is inserted into the damping groove 13 and rotates in conjunction with the damping ring 10. The rotating rod 20 can rotate around the axis toward the open position and make the arc surface 211 abut against the end 122, so that the gripper 12 elastically deforms. The connecting body 121 can drive the two ends 122 to move in opposite directions, so that the notch 14 increases. The rotating rod 20 can rotate around the axis toward the closed position and make the end 122 slide along the arc surface 211 to the plane 221, so that the gripper 12 elastically returns to its original position. The connecting body 121 can drive the two ends 122 to move relative to each other and make the notch 14 decrease. One of the damping ring 10 and the rotating rod 20 is used to connect the base 11, and the other is used to connect the display.

[0025] Specifically, the two grippers 12 are located on the same side of the base 11 along the Y direction. One end of the connector 121 is connected to the base 11, and the other end extends along an arcuate path parallel to the X direction to form an end 122, which forms the arcuate inner wall 131 of the damping groove 13. The two connectors 121 are spaced apart along the X direction, and the two ends 122 are spaced apart along the X direction. The notch 14 is located on one side of the damping groove 13 along the Y direction. The axis of the rotating rod 20 is parallel to the X direction and extends into the damping groove 13 along the X direction. The rotating rod 20 can rotate relative to the damping retaining ring 10 about a pivot parallel to the axis of the rotating rod 20. The damping part 21 and the locking part 22 are arranged circumferentially on the outer peripheral surface of the rotating rod 20, forming an arcuate surface 211 and a flat surface 221 that cooperate to cover the outer peripheral surface of the rotating rod 20. The axis of the arc surface 211 is parallel to the X direction, and the plane 221 is parallel to the X direction. The distance between each point on the arc surface 211 and the axis of rotation is greater than the radius of the inner wall 131 of the arc, while the distance between multiple points on the plane 221 and the axis of rotation is less than the radius of the inner wall 131 of the arc. The damping ring 10 is used to connect the base 11, and the rotating rod 20 is used to connect the display. In other embodiments, the damping ring 10 is used to connect the display, and the rotating rod 20 is used to connect the base 11.

[0026] It is understood that the rotating rod 20 is located between the two grippers 12, which can clamp the rotating rod 20 to apply frictional force to it during rotation. The end 122 can abut against the arc surface 211 or the plane 221 from one radial side of the rotating rod 20. When the rotating rod 20 rotates to the point where the arc surface 211 and the notch 14 are radially opposite, the rotating rod 20 is in the open position, and the end 122 abuts against the arc surface 211. The arc surface 211 can support the two ends 122 and allow the two connecting bodies 121 to move. The connecting body 121 causes the two ends 122 to move in opposite directions. As the rotating rod 20 rotates to the point where the plane 221 is opposite to the notch 14, the ends 122 can slide along the arc surface 211 to the plane 221 so that the ends 122 are not supported by the arc surface 211. Then, the ends 122 can slide from the part of the plane 221 that is farther from the axis of rotation to the part of the plane 221 that is farther from the axis of rotation, so that the connecting body 121 can cause the ends 122 to elastically recover towards the axis of rotation, so that the rotating rod 20 is in the closed position.

[0027] In the locking hinge 100 of the present invention, when the rotating rod 20 rotates relative to the damping ring 10, it can drive the base 11 to rotate relative to the display. When the rotating rod 20 rotates to the open position, the damping part 21 on the outer peripheral surface of the rotating rod 20 can push the clamping claw 12 of the damping ring 10 to elastically deform, and can increase the clamping force applied by the damping claw 12 to the rotating rod 20, so as to increase the damping when the base 11 and the display rotate relative to each other, thereby keeping the base 11 and the display in the open position. When the rotating rod 20 rotates to the closed position, the claw 12 can slide from the damping part 21 to the locking part 22. When the claw 12 slides to the locking part 22, the claw 12 elastically recovers and reduces the clamping force on the rotating base, thereby reducing the damping when the base 11 and the display rotate relative to each other. During the rotation from the closed position to the open position, the rotating rod 20 needs to overcome the elastic force applied by the damping ring 10 so that the damping ring 10 can restrict the rotation of the rotating rod 20 from the closed position to the open position, thereby keeping the display and the base 11 in the closed position and improving the positioning effect of the display.

[0028] Please see Figures 1 to 4 In one embodiment of this implementation, a mounting base 26 is also included. The base 11 is connected to the mounting base 26. A limiting groove 261 is provided on the mounting base 26. A limiting protrusion 23 is provided on the rotating rod 20. The limiting groove 261 has two limiting sidewalls 2611. The two limiting sidewalls 2611 are arranged circumferentially at intervals along the axis. The limiting protrusion 23 extends radially along the rotating rod 20 to enter the limiting groove 261. The rotating rod 20 can be rotated until the limiting protrusion 23 abuts against the limiting sidewall 2611.

[0029] Specifically, the mounting base 26 is located on one side of the base 11 along the Y direction. The mounting base 26 has a mounting hole 263, the axis of which is parallel to the X direction. The mounting hole 263 is located on one side of the damping ring 10 along the X direction and communicates with the damping groove 13. The rotating rod 20 passes through the mounting hole 263 and the damping groove 13 in sequence along the X direction. The rotating rod 20 is rotatably engaged with the mounting hole 263. The limiting groove 261 is opened on the inner wall of the mounting hole 263 and communicates with the mounting hole 263. The limiting protrusion 23 is provided on the part of the rotating rod 20 located in the mounting hole 263 and extends in a direction perpendicular to the X direction so that it can extend radially into the limiting groove 261.

[0030] Understandably, during the rotation of the rotating rod 20, the limiting protrusion 23 can move within the limiting groove 261 along the circumference of the rotating rod 20. When the rotating rod 20 rotates to the open position, the limiting protrusion 23 can abut against one of its limiting sidewalls 2611. In some embodiments, when the rotating rod 20 rotates to the closed position, the limiting protrusion 23 can abut against another limiting sidewall 2611. The limiting sidewall 2611 can restrict the movement of the limiting protrusion 23 to limit the rotation of the rotating rod 20, thereby allowing the locking hinge 100 to limit the relative rotation angle between the display and the base 11.

[0031] Please see Figures 1 to 4 In one embodiment of this implementation, the damping groove 13 passes through the damping ring 10 along the axial direction, the arc surface 211 is a conical surface, and the plane 221 is parallel to the generatrix of the conical surface. The damping ring 10 is rotatably engaged with the conical surface, and the rotating rod 20 is movably connected to the damping ring 10. The rotating rod 20 can move in a direction parallel to the axial direction to change the relative position of the damping ring 10 and the conical surface.

[0032] Specifically, the axis of the conical surface is parallel to the axis of rotation, and the radii of the different parts of the conical surface distributed along the X direction are different. The rotating rod 20 and the damping ring 10 can be movably connected along the X direction. When the damping ring 10 moves relative to the rotating rod 20, the position of the damping ring 10 and the rotating rod 20 in the X direction changes, and the damping ring 10 can cooperate with the parts of the conical surface with different radii.

[0033] Understandably, the radius of the conical surface is larger than the radius of the inner wall 131 of the arc, so that the rotating rod 20 can open the two grippers 12 and cause the grippers 12 to undergo elastic deformation. When the damping ring 10 engages with parts of the conical surface with different radii, the elastic deformation of the grippers 12 is different, resulting in different clamping forces applied by the grippers 12 to the rotating rod 20. This allows the damping of the rotating rod 20 to be different when it rotates toward the open and closed positions. The assembler can adjust the relative position between the damping ring 10 and the rotating rod 20 to ensure that the damping between the rotating rod 20 and the damping ring 10 meets expectations.

[0034] It should be noted that the larger the radius of the part of the conical surface that mates with the damping ring 10, the greater the elastic deformation of the gripper 12, and the greater the clamping force exerted by the gripper 12 on the rotating rod 20, thus increasing the damping during the rotation of the rotating rod 20. Conversely, the smaller the radius of the part of the conical surface that mates with the damping ring 10, the smaller the elastic deformation of the gripper 12, and the smaller the clamping force exerted by the gripper 12 on the rotating rod 20, thus decreasing the damping during the rotation of the rotating rod 20. When the monitor and base 11 are heavy, greater damping is required to stabilize them in the open and closed positions. During the assembly of the laptop, the assembler can move the damping ring 10 and the rotating rod 20 along the X direction, engaging the damping ring 10 with the larger radius of the conical surface, so that the locking hinge 100 can provide greater damping for the monitor and base 11. When the monitor and base 11 are relatively light, to ensure a smooth user experience when adjusting the angle between them, the damping during relative rotation of the monitor and base 11 needs to be minimal. The assembler can move the damping ring 10 and the rotating rod 20 along the X-direction, engaging the damping ring 10 with the smaller radius of the conical surface, thus minimizing the damping provided by the locking hinge 100 to the monitor and base 11. This design allows the locking hinge 100 to adapt to monitors and bases 11 of varying weights, improving its versatility and reducing manufacturing costs.

[0035] Please see Figures 1 to 4 In one embodiment of this implementation, the locking hinge 100 further includes a mounting base 26, on which a damping ring 10 is movably disposed and threadedly engaged with a rotating rod 20. The rotating rod 20 is rotatably connected to the mounting base 26, and the rotating rod 20 can rotate around an axis, thereby driving the damping ring 10 to move along the axial direction to change the relative position of the damping ring 10 and the conical surface.

[0036] Specifically, in some embodiments, the mounting base 26 has a mounting groove 262 extending in the X direction, the base 11 is located in the mounting groove 262 and can slide relative to the mounting groove 262 in the X direction, and both the rotating rod 20 and the damping ring 10 are provided with threads extending spirally around the axis of the conical surface, so that the damping ring 10 can be threadedly engaged with the rotating rod 20.

[0037] It is understood that when the rotating rod 20 rotates relative to the damping ring 10, the thread on the rotating rod 20 can guide the damping ring 10 to slide relative to the mounting base 26 in the X direction, and make the damping ring 10 engage with different parts of the conical surface radius, so as to change the elastic deformation of the jaw 12. It should be understood that in some embodiments, as the rotating rod 20 gradually rotates toward the open position, the damping ring 10 can gradually slide along the X direction from the part with the smaller conical surface radius to the part with the larger conical surface radius, and the elastic deformation of the two jaws 12 gradually increases, so as to increase the clamping force of the two jaws 12 on the rotating rod 20, thereby increasing the damping between the rotating rod 20 and the damping ring 10. This arrangement allows the damping to gradually increase during the rotation of the display and the base 11 toward the open position, which can reduce the risk of insufficient support provided by the locking hinge 100 to the display, causing the display to fall back unexpectedly, and thus improve the stability of the display in the open position.

[0038] Please see Figures 1 to 4 In one embodiment of this implementation, the locking hinge 100 further includes a mounting base 26. The locking hinge 100 includes a plurality of damping rings 10. The damping rings 10 are detachably connected to the mounting base 26. The plurality of damping rings 10 are arranged along the axial direction so that the damping grooves 13 of the plurality of damping rings 10 are connected.

[0039] Specifically, the bases 11 of the multiple damping rings 10 are all located in the mounting grooves 262, the multiple damping rings 10 are arranged along the X direction, and the rotating rod 20 passes through the damping grooves 13 of the multiple damping rings 10 in sequence along the X direction.

[0040] Understandably, the grippers 12 of the multiple damping rings 10 can all apply clamping force to the rotating rod 20. The magnitude of the clamping force on the rotating rod 20 is positively correlated with the number of damping rings 10. The damping rings 10 are detachably connected to the mounting base 26. During the assembly process of the display and the base 11, the assembler can add damping rings 10 to the mounting base 26 or remove the damping rings 10 from the mounting base 26 as needed, and make the damping of the rotating rod 20 relative to the multiple damping rings 10 meet expectations.

[0041] Please see Figures 1 to 5 , Figure 5 yes Figure 1 A schematic diagram showing the positions of the multiple damping rings 10 after rotation. In one embodiment of this implementation, the locking hinge 100 further includes an adjustment component. The damping rings 10 are rotatably connected to the mounting base 26. The multiple damping rings 10 can rotate relative to each other around an axis, and the multiple notches 14 are arranged circumferentially. The adjustment component is mounted on the mounting base 26 and is used to limit the rotation of the damping rings 10. During the rotation of the rotating rod 20, the plane 221 can sequentially abut against the ends 122 of the multiple damping rings 10.

[0042] Specifically, the adjusting assembly includes a fastener that is threaded into the mounting base 26. The fastener is rotatable relative to the mounting base 26 about an axis parallel to the Y direction and moves along the Y direction to abut against the damping ring 10 to limit the rotation of the damping ring 10. Multiple damping rings 10 are rotatably connected about an axis parallel to the X direction. In some embodiments, the multiple damping rings 10 are divided into two groups, with multiple damping rings 10 in one group rotating synchronously. The two groups of damping rings 10 can rotate relative to each other, such that the notches 14 of the two groups of damping rings 10 are spaced apart circumferentially along the rotating rod 20.

[0043] It should be noted that the notch 14 and the damping sidewall of the damping ring 10 are arranged circumferentially. When the rotating rod 20 rotates, the plane 221 can rotate sequentially to pass through the notch 14 and the damping sidewall. During the process of the plane 221 passing through the damping sidewall, the damping magnitude between the rotating rod 20 and the damping sidewall remains unchanged. When the plane 221 rotates to pass through the notch 14, the clamp 12 elastically returns to its original state, and the damping between the rotating rod 20 and the damping sidewall decreases. When the rotating rod 20 drives the plane 221 to rotate from the notch 14 towards the damping sidewall, the rotating rod 20 needs to overcome the elastic force of the clamp 12 to make the rotating rod 20 tend to be stable when the plane 221 is opposite to the notch 14. After the two sets of damping rings 10 rotate to the notch 14 and are arranged circumferentially, the rotating rod 20 can tend to be stable at two angles, so that the user can easily adjust the display to the preset angle.

[0044] Understandably, with multiple damping rings 10 rotating, the assembler can rotate the damping rings 10 so that multiple notches 14 are arranged circumferentially, and the rotating rod 20 can be stabilized at multiple angles, so that the user can easily adjust the display to a preset angle.

[0045] Please see Figures 1 to 4 In one embodiment of this implementation, magnetic elements are provided on both the limiting sidewall 2611 and the limiting protrusion 23, and the magnetic elements on the limiting sidewall 2611 can attract the magnetic elements on the limiting protrusion 23.

[0046] Specifically, the magnetic component is a magnet. It can be understood that when the magnetic component on the limiting sidewall 2611 attracts the magnetic component on the limiting protrusion 23, the rotation of the rotating rod 20 is restricted. By setting the magnetic component, the rotating rod 20 can more stably position the display in the open position.

[0047] Please see Figures 1 to 4 In one embodiment of this implementation, the rotating rod 20 is provided with an oil reservoir 24, which is used to store lubricating oil to provide lubrication for the relative rotation of the rotating rod 20 and the damping ring 10.

[0048] Specifically, the oil reservoir 24 is formed on the arc surface 211. It can be understood that the oil reservoir 24 can hold lubricating oil, so as to reduce the friction between the rotating rod 20 and the damping ring 10, thereby reducing the wear of the rotating rod 20 and the damping ring 10, which is beneficial to improving the service life of the locking hinge 100.

[0049] Please see Figures 1 to 4 In one embodiment of this implementation, the oil storage tank 24 extends spirally around the axis.

[0050] Specifically, the oil reservoir 24 extends spirally around the axis of the arc surface 211. This arrangement increases the axial dimension of the oil reservoir 24 on the rotating rod 20, thereby improving the lubrication effect of the lubricating oil in the oil reservoir 24 and further reducing the wear of the rotating rod 20 and the damping retaining ring 10.

[0051] Please see Figures 1 to 4 In one embodiment of this implementation, a plurality of strip grooves 25 are provided on the outer peripheral surface of the rotating rod 20. The strip grooves 25 extend in a direction parallel to the axis and are arranged circumferentially. The strip grooves 25 are used to cooperate with the display or the base 11.

[0052] Specifically, the slot 25 extends along the X direction. It is understood that the rotating rod 20 can be used to connect the display, and the slot 25 can cooperate with the display to reduce the risk of the display sliding relative to the rotating rod 20, thereby reducing the risk of reduced positioning effect of the locking hinge 100 on the display.

[0053] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A locking hinge, characterized in that, include: A damping clasp includes a base and two jaws, each jaw having a connecting body and an end. The base is connected to one end of the connecting body, and the end is located at the other end of the connecting body. The two jaws are arranged at intervals such that the interval between the two connecting bodies forms a damping groove, and the interval between the two ends forms a notch communicating with the damping groove. A rotating rod has a damping part and a locking part arranged circumferentially on its outer circumferential surface. The locking part has a flat surface, and the damping part has an arc surface. The flat surface connects to the arc surface. The rotating rod passes through the damping groove and rotates with the damping retaining ring. The rotating rod can rotate about its axis toward the open position and make the arc surface abut against the end, so that the gripper elastically deforms. The connecting body can drive the two ends to move in opposite directions, so that the gap increases. The rotating rod can rotate about its axis toward the closed position and make the end slide along the arc surface to the flat surface, so that the gripper elastically returns to its original position. The connecting body can drive the two ends to move relative to each other and reduce the gap. One of the damping retaining ring and the rotating rod is used to connect to the base, and the other is used to connect to the display.

2. The locking hinge according to claim 1, characterized in that, It also includes a mounting base, the base being connected to the mounting base, the mounting base having a limiting groove, the rotating rod having a limiting protrusion, the limiting groove having two limiting sidewalls, the two limiting sidewalls being arranged circumferentially at intervals along the axis, the limiting protrusion extending radially along the rotating rod to enter the limiting groove, and the rotating rod being rotatable until the limiting protrusion abuts against the limiting sidewall.

3. The locking hinge according to claim 1, characterized in that, The damping groove extends through the damping retaining ring along the axial direction. The arc surface is a conical surface, and the plane is parallel to the generatrix of the conical surface. The damping retaining ring is rotatably engaged with the conical surface. The rotating rod is movably connected to the damping retaining ring and can move in a direction parallel to the axial direction to change the relative position of the damping retaining ring and the conical surface.

4. The locking hinge according to claim 3, characterized in that, The locking hinge also includes a mounting base, on which the damping retaining ring is movably disposed and threadedly engaged with the rotating rod. The rotating rod is rotatably connected to the mounting base and can rotate around the axis, thereby causing the damping retaining ring to move along the axis direction to change the relative position of the damping retaining ring and the conical surface.

5. The locking hinge according to claim 1, characterized in that, The locking hinge further includes a mounting base, and the locking hinge includes a plurality of damping rings. The damping rings are detachably connected to the mounting base, and the plurality of damping rings are arranged along the axial direction so that the damping grooves of the plurality of damping rings are connected.

6. The locking hinge according to claim 5, characterized in that, The locking hinge further includes an adjustment component. The damping ring is rotatably connected to the mounting base. The plurality of damping rings can rotate relative to each other around the axis and the plurality of notches are arranged along the circumferential direction. The adjustment component is mounted on the mounting base and is used to restrict the rotation of the damping rings. During the rotation of the rotating rod, the plane can sequentially abut against the ends of the plurality of damping rings.

7. The locking hinge according to claim 2, characterized in that, Both the limiting sidewall and the limiting protrusion are provided with magnetic suction elements, and the magnetic suction elements on the limiting sidewall can attract the magnetic suction elements on the limiting protrusion.

8. The locking hinge according to claim 1, characterized in that, The rotating rod is provided with an oil reservoir for storing lubricating oil to provide lubrication for the relative rotation of the rotating rod and the damping retainer ring.

9. The locking hinge according to claim 8, characterized in that, The oil storage tank extends spirally around the axis.

10. The locking hinge according to claim 1, characterized in that, The outer circumferential surface of the rotating rod is provided with a plurality of strip grooves, which extend in a direction parallel to the axis and are arranged in a circumferential manner. The strip grooves are used to cooperate with the display or the base.

Images