Folding rotating shaft
通过在折叠转轴中设计调节组件,调节支架的扭矩值,解决了传统折叠转轴在折叠或展开过程中缺乏顺序控制的问题,实现了顺序折叠功能,提升了设备的操作流畅度和使用寿命。
Patent Information
- Application Number
- CN202421700957.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The traditional biaxial folding shaft lacks an effective sequential control mechanism during folding or unfolding, which makes it difficult for each shaft section to coordinate the operation in a predetermined order, affecting the smoothness of the equipment, and may intensify component wear due to action conflicts and reduce service life.
A folding rotary shaft including a connector, a bracket, a shaft core and an adjustment assembly is designed. The adjustment assembly adjusts the torque values of the first and second brackets through a combination of nuts and shrapnels to make them different, thereby achieving the sequential folding function.
The first bracket and the second bracket are adjusted by the adjustment assembly to make the torque value different, and the sequential control of the first bracket and the second bracket during the rotation process is realized, meeting the rotation sequence required by the user, and improving the user experience and convenience.
Smart Images
Figure CN222811072U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of folding rotating shafts, in particular to a folding rotating shaft. Background Art
[0002] During the folding or unfolding process of the traditional dual-axis folding shaft, due to the lack of an effective sequential control mechanism, it is often difficult for the various axis sections to coordinate their movements in a predetermined order. This not only affects the operating smoothness of the equipment, but may also cause increased wear of components due to action conflicts, reducing the overall service life. If an attempt is made to achieve sequential control by introducing a complex meshing transmission system, it will significantly increase manufacturing costs, increase the difficulty of maintenance, and is not conducive to the lightweight and miniaturized design of the product. Utility Model Content
[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a folding shaft that meets the rotation sequence requirements of users and realizes a sequential folding function.
[0004] In order to solve the above problems, the utility model provides the following technical solutions:
[0005] A folding shaft, comprising:
[0006] Connector;
[0007] A bracket, comprising a first bracket and a second bracket respectively mounted at two ends of the connector;
[0008] An axis core, corresponding to the first bracket and the second bracket, so that the first bracket and the second bracket can both rotate on the connecting body through the axis core;
[0009] The adjustment component is used to adjust the torque values of the first bracket and the second bracket so that the torque values of the first bracket and the second bracket are different.
[0010] In one embodiment, the adjustment assembly is configured to adjust the torque value relationship between the first bracket and the second bracket to satisfy:
[0011] The torque value of the first bracket*0.8>the torque value of the second bracket.
[0012] In one embodiment, the adjustment component includes a nut and a spring sheet, wherein the spring sheet is mounted on the shaft core and can abut against the first bracket or the second bracket, and the nut is mounted on the outer end of the shaft core, and the nut can be spirally rotated on the shaft core to move closer to or away from the spring sheet to change the friction force of the spring sheet on the first bracket or the second bracket.
[0013] In one embodiment, the adjustment assembly further includes a first gasket and a second gasket, wherein the gasket is mounted on the shaft core and disposed between the first bracket and the connector, and the second gasket is mounted on the shaft core and disposed between the second bracket and the connector;
[0014] The thicknesses of the first gasket and the second gasket are different, so that when the nut is respectively installed on the outer ends of the two shaft cores, the extrusion forces generated on the first gasket and the second gasket are different.
[0015] In one embodiment, the adjustment assembly includes a nut, a first elastic sheet and a second elastic sheet, wherein the first elastic sheet is mounted on the shaft core assembled with the first bracket, and the second elastic sheet is mounted on the shaft core assembled with the second bracket;
[0016] The thicknesses of the first elastic sheet and the second elastic sheet are different, so that when the nut is respectively installed on the outer ends of the two shaft cores, the extrusion forces generated on the first elastic sheet and the second elastic sheet are different.
[0017] In one embodiment, the thickness of the first elastic sheet*0.8>the thickness of the second elastic sheet.
[0018] In one embodiment, the adjustment assembly further comprises a cam piece, wherein the cam piece penetrates into the shaft core and can abut against the bracket;
[0019] The bracket is provided with an abutting surface abutting against the cam sheet, the abutting surface has a stop point protruding outwardly, and the cam sheet is provided with a limiting groove corresponding to the stop point, and the rotation of the bracket is locked by the side wall of the limiting groove abutting against the stop point.
[0020] In one embodiment, the abutting surface is configured as a concave-convex surface structure.
[0021] In one embodiment, the first bracket is installed on at least one side of one end of the connecting body, and the second bracket is installed on at least one side of the other end of the connecting body.
[0022] In one embodiment, the folding axis is configured as a symmetrical structure with an axis passing through the center of the connector along the first direction and / or along the second direction as a symmetry axis;
[0023] The first direction is perpendicular to the second direction.
[0024] The beneficial effect of the utility model is that the first bracket and the second bracket are adjusted by the adjustment component, so that the torque values of the first bracket and the second bracket are different, so that the folding force required for the first bracket to rotate is different from the folding force required for the second bracket to rotate, and further the first bracket and the second bracket meet the user's requirements for the rotation sequence, realize the sequential folding function, and improve the user experience and convenience. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a structural schematic diagram of one embodiment of a folding shaft of the utility model;
[0026] Figure 2 This is an exploded schematic diagram of one embodiment of a folding shaft of the utility model;
[0027] Figure 3 This is a first motion state diagram of one embodiment of a folding shaft of the utility model;
[0028] Figure 4 This is a second motion state diagram of one embodiment of a folding shaft of the utility model;
[0029] Figure 5 It is a plan view of one embodiment of a folding shaft of the utility model.
[0030] Reference numerals:
[0031] 100, folding shaft; 110, connecting body; 111, first bracket; 112, second bracket; 113, shaft core; 121, nut; 122, spring; 123, first gasket; 124, second gasket; 125, cam; 131, abutting surface; 132, stop point; 13a, limiting groove; 311, shaft body;
[0032] 221, nut; 222, first spring piece; 223, second spring piece. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0034] 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 invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0035] For the convenience of describing the first direction and the second direction in the embodiment of the present application, the first direction is the left-right direction in the drawings, and the second direction is the front-back direction in the drawings. The x-axis arrow direction is referred to as the "right" direction in the following text, and the z-axis arrow direction is referred to as the "rear" direction in the following text, which is not limited to the actual application of the present application.
[0036] Example 1: Please refer to Figure 1-5 As shown, the present embodiment provides a folding hinge 100, which includes: a connecting body 110, a first bracket 111 and a second bracket 112 installed on the connecting body 110, and an axis core 113 also installed on the connecting body 110, wherein the number of the axis cores 113 installed corresponds to the first bracket 111 and the second bracket 112, so that the first bracket 111 and the second bracket 112 can respectively realize rotation on the connecting body 110 through their respective corresponding axis cores 113; further, the folding hinge 100 also includes an adjusting component, which is used to adjust the torque value of the bracket, and by using the adjusting component, the torque values of the first bracket 111 and the second bracket 112 during the rotation process are different.
[0037] Optionally, the shaft core 113 is set as a hollow structure, and the two ends of the shaft core 113 can be connected by setting the hollow structure, so that the folding shaft 100 can pass through the data line or other connecting line through the shaft core 113 with the hollow structure, thereby achieving electrical conduction with the device actually installed on the folding shaft 100.
[0038] Specifically, the adjustment component includes a nut 121 and a spring piece 122, the spring piece 122 is installed on the shaft core 113 assembled with the first bracket 111 and can abut against the first bracket 111, the spring piece 122 is also installed on the shaft core 113 assembled with the second bracket 112 and can abut against the second bracket 112, the nut 121 is installed on the outer ends of the two shaft cores 113, and the nut 121 can be close to or away from the spring piece 122 by spiral rotation on the shaft core 113 to change the friction force of the spring piece 122 on the first bracket 111 or the second bracket 112; that is, when the nut 121 is spirally rotated on the shaft core 113 and approaches the spring piece 122 installed on the first bracket 111, the spring piece 122 is compressed, so that friction is generated between the spring piece 122 and the first bracket 111, and when the nut 121 is spirally rotated on the shaft core 113 and away from ... The spring piece 122 is stretched out, thereby reducing the friction force generated between the spring piece 122 and the first bracket 111; further, when the nut 121 spirally rotates on the shaft core 113 assembled on the second bracket 112 and approaches the spring piece 122 installed on the second bracket 112, the spring piece 122 is compressed, thereby generating friction force between the spring piece 122 and the second bracket 112, and when the nut 121 spirally rotates on the shaft core 113 assembled on the second bracket 112 and moves away from the spring piece 122 installed on the second bracket 112, the spring piece 122 is stretched out, thereby reducing the friction force generated between the spring piece 122 and the second bracket 112; the above scheme is finally used to adjust the torque value of the first bracket 111 and the second bracket 112, so that the torque value of the first bracket 111 rotating on the shaft core 113 is different from the torque value of the second bracket 112 rotating on the shaft core 113.
[0039] Preferably, the adjustment component in the folding shaft 100 also includes a first gasket 123 and a second gasket 124, the gasket is installed on the shaft core 113 and is arranged between the first bracket 111 and the connecting body 110, and the second gasket 124 is installed on the shaft core 113 and is arranged between the second bracket 112 and the connecting body 110; it can be understood that in some cases in this embodiment, the first gasket 123 and the second gasket 124 can be set to the same thickness, and the nut 121 is spirally rotated on the shaft core 113 and approaches or moves away from the spring piece 122 installed on the first bracket 111 or the spring piece 122 installed on the second bracket 112 to adjust the torque value of the first bracket 111 and the second bracket 112.
[0040] In some other cases of this embodiment, the thickness of the first gasket 123 and the second gasket 124 may be set to be unequal, so that when the nut 121 is respectively installed on the outer ends of the two shaft cores 113, the extrusion force generated on the first gasket 123 and the second gasket 124 is different. In this embodiment, the thickness of the first gasket 123 may be set to be greater than the thickness of the second gasket 124, so that when the nut 121 is installed on the outer end of the shaft core 113 where the first gasket 123 is located, the extrusion force generated on the first gasket 123 is greater, thereby 11 generates a larger friction force, while when the nut 121 is installed on the outer end of the shaft core 113 where the second gasket 124 is located, the extrusion force generated on the second gasket 124 is smaller, thereby generating a smaller friction force on the second bracket 112, thereby further causing a larger torque value to be generated on the first bracket 111 and a smaller torque value to be generated on the second bracket 112, thereby achieving the adjustment of the torque values of the first bracket 111 and the second bracket 112 by setting the first gasket 123 and the second gasket 124 to different thicknesses instead of moving the nut 121.
[0041] Example 2: Please refer to Figure 1-5 As shown, the present embodiment provides a folding shaft 100, in which the adjustment component of the folding shaft 100 includes a nut 221, a first spring piece 222 and a second spring piece 223, the first spring piece 222 is installed on the shaft core 113 assembled with the first bracket 111, and the second spring piece 223 is installed on the shaft core 113 assembled with the second bracket 112; the thickness of the first spring piece 222 and the second spring piece 223 are not equal, so that when the nut 221 is respectively installed on the outer ends of the two shaft cores 113, the extrusion force generated on the first spring piece 222 and the second spring piece 223 is different; that is, by setting the thickness of the first spring piece 222 and the second spring piece 223 to be different, the compression amount and elongation amount of the first spring piece 222 and the second spring piece 223 are different, and it can be It is understood that when the nut 221 is installed on the outermost end of the shaft core 113 and abuts against the first spring clip 222, due to the different thicknesses of the first spring clip 222 and the second spring clip 223, when the nut 221 is in the same position on the two shaft cores 113 and abuts against the first spring clip 222 and the second spring clip 223, the first spring clip 222 with a larger thickness will generate a larger friction force with the first bracket 111, thereby making the torque value of the first bracket 111 assembled on the same shaft core 113 as the first spring clip 222 larger, while the friction force generated by the second spring clip 223 with a smaller thickness and the second bracket 112 is smaller, thereby making the torque value of the second bracket 112 assembled on the same shaft core 113 as the second spring clip 223 smaller.
[0042] Preferably, the adjustment component is configured to adjust the torque value relationship between the first bracket 111 and the second bracket 112 to satisfy: the torque value of the first bracket 111*0.8>the torque value of the second bracket 112; within this range, preferably, in this embodiment, the thickness of the first spring piece 222*0.8>the thickness of the second spring piece 223, and the thickness of the second spring piece 223 is at least 20% different from the thickness of the first spring piece 222, so that the friction force generated by the first spring piece 222 is significantly different from the friction force generated by the second spring piece 223, and the difference is small, resulting in the friction force generated by the first spring piece 222 and the second spring piece 223 being relatively similar, so that the first bracket 111 and the second bracket 112 are relatively close. The preset rotation order of the frame 112 is not obvious; it can be understood that in this embodiment, the thickness of the first spring piece 222 and the second spring piece 223 are adjusted according to the torque value formula to satisfy the torque relationship between the first bracket 111 and the second bracket 112, thereby determining the order of rotation of the first bracket 111 and the second bracket 112 when they receive the folding force at the same time. In other cases, the thickness of the first gasket 123 and the second gasket 124 can be adjusted according to the torque value relationship, or the distance of the nut 221 close to or away from the spring piece can be adjusted, or it can be adjusted in other ways, so that the torque value relationship between the first bracket 111 and the second bracket 112 satisfies the above range.
[0043] Preferably, the adjustment component further includes a cam piece 125, which penetrates the shaft core 113 and can abut against the bracket. The purpose of the cam piece 125 is to limit the rotation of the first bracket 111 and the second bracket 112, so that the rotation range of the first bracket 111 and the second bracket 112 is limited within a certain range, thereby avoiding the first bracket 111 and the second bracket 112 from rotating at too large an angle, thereby causing a bad influence on the use; further, the first bracket 111 and the second bracket 112 are both provided with an abutting surface 131 abutting against the cam piece 125, and the abutting surface 131 protrudes outward with a stop point 132, and the cam A limiting groove 13a corresponding to the blocking point 132 is provided on the plate 125, and the side wall of the limiting groove 13a abuts against the blocking point 132 to lock the rotation of the bracket; optionally, in this embodiment, the length of the limiting groove 13a is set to set the rotation angle range of the first bracket 111 and the second bracket 112 between 60 and 120°, preferably 90°; further, the abutting surface 131 is set to a concave-convex surface structure, and the abutting surface 131 of the concave-convex surface structure can increase the friction between the abutting surface 131 and the cam plate 125, which is beneficial to increase the torque value of the first bracket 111 and the second bracket 112.
[0044] Preferably, the first bracket 111 is installed on at least one side of one end of the connecting body 110, and the second bracket 112 is installed on at least one side of the other end of the connecting body 110; it is understandable that in this embodiment, the first bracket 111 and the second bracket 112 are set in two, and the two first brackets 111 are respectively installed on the two sides of one end of the connecting body 110, and the two second brackets 112 are respectively installed on the two sides of the other end of the connecting body 110; further, it is understandable that when the first bracket 111 and the second bracket 112 are both set in two, at this time, the folding shaft 100 can form a symmetrical structure with the axis passing through the center of the connecting body 110 along the first direction and along the second direction as the symmetry axis; in other embodiments, the first bracket 111 and the second bracket 112 can be set in one, and are respectively installed on one side of one end of the connecting body 110 and one side of the other end. This solution adopts one bracket on the left and one on the right to achieve the purpose of convenient installation and debugging, simple processing and easy modularization.
[0045] Assembly steps:
[0046] Insert the shaft core 113 into the hole of the first bracket 111, insert the cam piece 125, put in the gasket, then put the first spring piece 222 composed of multiple spring pieces back to back and face to face, then put the gasket with the function of stopping retreat, and the end face lock nut 221; adjust the torque value to reach Ta, so that a set of rotating shaft bodies 311 are assembled on one side of one end of the connecting body 110, such as Figure 2 Show;
[0047] Further, using the same method, the shaft core 113 is inserted into the hole of another first bracket 111, and the above-mentioned actions are repeated to adjust the torque value to Ta, so that a set of rotating shaft bodies 311 is assembled on the other side of one end of the connecting body 110;
[0048] Further, in the same way, the shaft core 113 is inserted into the hole of the second bracket 112, and the above-mentioned actions are repeated to adjust the torque value to reach Tb, so that a set of rotating shaft bodies 311 is assembled on one side of the other end of the connecting body 110;
[0049] Further, in the same way, the shaft core 113 is inserted into the hole of the left symmetrical bracket, and the above-mentioned actions are repeated to adjust the torque value to reach Tb, so that a set of rotating shaft bodies 311 is assembled on the other side of the other end of the connecting body 110;
[0050] Further, the right rotating shaft body 311, the right symmetrical rotating shaft body 311, the left rotating shaft body 311 and the left symmetrical rotating shaft body 311 are respectively pressed into the corresponding flat holes of the connecting body 110 to form the present double-axis sequential folding rotating shaft 100. Figure 1 Show.
[0051] Principle and usage:
[0052] Taking the adjusted torque value Ta*0.8>Tb as an example (a difference of 20% between the two is more conducive to realizing the sequential folding function), when the folding force applied to the first bracket 111 and the second bracket 112 is greater than the torque Tb, the shaft body 311 combination where the second bracket 112 is located will rotate first, until the groove wall at one end of the limiting groove 13a of the cam piece 125 in the shaft body 311 where the second bracket 112 is located hits the blocking point 132 and stops rotating; at this time, continue to increase the folding force, when the folding force continues to increase and is greater than the torque Ta, the shaft body 311 where the first bracket 111 is located will rotate, until the groove wall at one end of the limiting groove 13a of the cam piece 125 in the shaft body 311 where the first bracket 111 is located hits the blocking point 132 and stops rotating, at which time the two side shafts of the connecting body 110 are in the maximum internal rotation position; further, apply reverse Folding force, when the reverse folding force is greater than the torque Tb, the shaft body 311 combination where the second bracket 112 is located will first reversely rotate until the groove wall at the end of the limit groove 13a of the cam piece 125 in the shaft body 311 where the second bracket 112 is located reversely hits the blocking point 132 and stops rotating; at this time, continue to increase the reverse folding force, when it is greater than the torque Ta, the shaft body 311 where the first bracket 111 is located will reversely rotate until the groove wall at the end of the limit groove 13a of the cam piece 125 in the shaft body 311 where the first bracket 111 is located hits the blocking point 132 and stops, at this time, the first bracket 111 and the second bracket 112 on the connecting body 110 are restored to the unfolded state, the structural shaft uses the unequal torque values in the symmetrical structure, and the additional blocking point 132 causes the torque value to suddenly increase and cause sequential action, thereby realizing the sequential folding function.
[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A folding shaft, characterized in that: include: Connector; A bracket, comprising a first bracket and a second bracket respectively mounted at two ends of the connector; An axis core can be installed on the connecting body, corresponding to the first bracket and the second bracket, and the first bracket and the second bracket can both rotate on the connecting body through the axis core; An adjusting component, used for adjusting the torque values of the first bracket and the second bracket, so that the torque values of the first bracket and the second bracket are different; The adjustment component includes a nut and a spring sheet, the spring sheet is installed on the shaft core and can abut against the first bracket or the second bracket, the nut is installed on the outer end of the shaft core, and the nut can be spirally rotated on the shaft core to move closer to or away from the spring sheet to change the friction force of the spring sheet on the first bracket or the second bracket.
2. The folding shaft according to claim 1, characterized in that: The adjustment assembly is configured to adjust the torque value relationship between the first bracket and the second bracket to satisfy: The torque value of the first bracket*0.8>the torque value of the second bracket.
3. The folding shaft according to claim 1, characterized in that: The adjustment assembly further includes a first gasket and a second gasket, wherein the gasket is mounted on the shaft core and disposed between the first bracket and the connector, and the second gasket is mounted on the shaft core and disposed between the second bracket and the connector; The thicknesses of the first gasket and the second gasket are different, so that when the nut is respectively installed on the outer ends of the two shaft cores, the extrusion forces generated on the first gasket and the second gasket are different.
4. The folding shaft according to claim 1, characterized in that: The adjustment assembly includes a nut, a first elastic sheet and a second elastic sheet, wherein the first elastic sheet is mounted on the shaft core assembled with the first bracket, and the second elastic sheet is mounted on the shaft core assembled with the second bracket; The thicknesses of the first elastic sheet and the second elastic sheet are different, so that when the nut is respectively installed on the outer ends of the two shaft cores, the extrusion forces generated on the first elastic sheet and the second elastic sheet are different.
5. The folding shaft according to claim 4, characterized in that: The thickness of the first spring piece*0.8>the thickness of the second spring piece.
6. The folding shaft according to claim 1, characterized in that: The adjustment assembly further comprises a cam piece, which penetrates into the shaft core and can abut against the bracket; The bracket is provided with an abutting surface abutting against the cam sheet, the abutting surface has a stop point protruding outwardly, and the cam sheet is provided with a limiting groove corresponding to the stop point, and the rotation of the bracket is locked by the side wall of the limiting groove abutting against the stop point.
7. The folding shaft according to claim 6, characterized in that: The abutting surface is configured as a concave-convex surface structure.
8. The folding shaft according to claim 1, characterized in that: The first bracket is installed on at least one side of one end of the connecting body, and the second bracket is installed on at least one side of the other end of the connecting body.
9. The folding shaft according to claim 8, characterized in that: The folding shaft is configured as a symmetrical structure with an axis passing through the center of the connecting body along the first direction and / or along the second direction as a symmetry axis; The first direction is perpendicular to the second direction.