CN106917814A

CN106917814A - A kind of rotating shaft and electronic equipment

Info

Publication number: CN106917814A
Application number: CN201510990144.0A
Authority: CN
Inventors: 范小利; 马雷; 左常龙
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2015-12-24
Filing date: 2015-12-24
Publication date: 2017-07-04
Anticipated expiration: 2035-12-24
Also published as: CN106917814B

Abstract

The invention discloses a kind of rotating shaft and electronic equipment.Wherein, rotating shaft includes：Multiple rotary gear shafts, between adjacent gear rotating shaft by the gear teeth meshing on rotary gear shaft together, after bearing an external force, each for making in the multiple rotary gear shaft by the change of the position of engagement produces engaged transmission, so that the shaft bending is to the state under pre-conditioned；Multiple connection members, for connecting the gear-like rotating shaft.

Description

Rotating shaft and electronic equipment

Technical Field

The present disclosure relates to a hinge technology of an electronic device, and more particularly, to a hinge and an electronic device.

Background

With the development of science and technology, the concept of the flexible screen device has been proposed in the field of electronic devices, that is, the electronic device has a flexible screen, which can improve the hand feeling of users, and is thinner and lighter in volume and low in power consumption, thereby being helpful for improving the cruising ability of the electronic device. Meanwhile, based on the characteristics of completeness and good flexibility, the durability of the screen is greatly higher than that of a traditional screen, and the probability of accidental damage of equipment is reduced.

The flexible screen has good flexibility, so that the area of a display area of the electronic equipment can be greatly increased, and the use by a user is facilitated. However, the increase of the area of the display area increases the volume of the device, so that a proper rotating shaft needs to be designed, so that the flexible screen device can be folded, the volume of the device is reduced, and the device is convenient to carry.

However, there is no design solution for the hinge of the flexible screen device.

Disclosure of Invention

In order to solve the existing technical problems, embodiments of the present invention provide a rotating shaft and an electronic device.

In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:

an embodiment of the present invention provides a rotating shaft, including:

the gear rotating shafts are meshed together through gear teeth on the gear rotating shafts, and after an external force is borne, each gear rotating shaft is in meshing transmission through the change of meshing positions, so that the rotating shafts are bent to be in a state under a preset condition;

and the connecting parts are used for connecting the gear-shaped rotating shafts.

In the above aspect, the plurality of connection members include a first connection member provided at an axial center position of the gear rotating shaft, and configured to generate a frictional force on a contact surface with the gear rotating shaft during a bending process of the shaft, so that the shaft can be held in any state during the bending process.

In the above solution, the rotating shaft includes a bendable portion, and each of the gear rotating shafts in the bendable portion is a first structural gear rotating shaft; the first structure gear rotating shaft is a gear rotating shaft with a double-wheel structure; the rotating shaft comprises a first gear wheel rotating shaft chain and a second gear wheel rotating shaft chain;

in the first gear wheel rotating shaft chain, adjacent first structure gear rotating shafts are meshed together through gear teeth;

in the second gear wheel rotating shaft chain, adjacent first structure gear rotating shafts are meshed together through gear teeth;

a first structure gear rotating shaft in the first gear rotating shaft chain is connected with a first structure gear rotating shaft in the second gear rotating shaft chain by the first connecting part in a shaft center staggered mode;

in the rotating shaft bending process, the angles between the adjacent first structure gear rotating shafts are changed through the change of the meshing position between the adjacent first structure gear rotating shafts and the interaction between the first gear rotating shaft chain and the second gear rotating shaft chain.

In the above scheme, the rotating shaft further includes a transmission portion, and the plurality of connecting members further include a second connecting member; each gear rotating shaft in the transmission part is a second structure gear rotating shaft; the second structure gear rotating shaft is a gear rotating shaft with a single-wheel structure;

in the transmission part, adjacent second structure gear rotating shafts are meshed together through gear teeth; the first connecting part is arranged at the axis position of each second structure gear rotating shaft; each first connecting part arranged on the rotating shaft of the second structure gear is fixed on the second connecting part;

one end part of the transmission part is meshed with one end part of one bendable part through gear teeth; the other end part of the transmission part is meshed with one end part of the other bendable part through gear teeth; the second structure gear rotating shaft positioned at the end part of the transmission part is connected with the first structure gear rotating shaft positioned at the end part of the bendable part by the first connecting part in an axis mode;

in the bending process of the rotating shafts, the angles between the adjacent second structure gear shafts in the transmission part are not changed through the change of the meshing positions between the adjacent second structure gear shafts.

In the above scheme, the number of the second structure gear rotating shafts in the transmission part is odd; in the bending process of the rotating shaft, two ends of the transmission part have the same rotating direction.

In the above scheme, the number of the second structure gear rotating shafts in the transmission part is even; and in the bending process of the rotating shaft, two ends of the transmission part have opposite rotating directions.

An embodiment of the present invention further provides an electronic device, including:

a housing;

a flexible screen;

a rotating shaft;

the flexible screen is fixed in the shell, and the rotating shaft is fixed with the shell through a rigid component of the shell;

the pivot includes:

one end part of the transmission part is meshed with one end part of one bendable part through gear teeth; the other end part of the transmission part is meshed with one end part of the other bendable part through gear teeth; the second structure gear rotating shaft positioned at the end part of the transmission part and the first structure gear rotating shaft positioned at the end part of the bendable part are connected by the first connecting part through the axle center;

In the above scheme, the rotating shaft includes bending portions and transmission portions arranged at intervals, outer ends of the bending portions at two ends of the rotating shaft are respectively connected with the supporting members, and the supporting members are bent in opposite directions when the rotating shaft is in a bending state, so that the two supporting members are parallel to at least one transmission portion;

or, the rotating shaft comprises bending parts and transmission parts at intervals and supporting parts at the bending parts at the two ends of the rotating shaft, the outer ends of the bending parts at the two ends of the rotating shaft are respectively connected with the supporting parts, and the two supporting parts connected with the outer ends of the bending parts are bent in opposite directions under the bending state of the rotating shaft, so that the three supporting parts are parallel to the at least one transmission part.

In the above scheme, the pivot includes flexion and the transmission portion that the interval set up, and the support component is connected respectively to the outer end of the flexion at pivot both ends, and under the pivot bending state, the support component is crooked to the same direction for two support components are parallel with at least one transmission portion.

In the above solution, the electronic device has at least one set of rotating shafts.

In the above scheme, the neutral layer of the rotating shaft coincides with the neutral layer of the electronic device.

The rotating shaft comprises a plurality of gear rotating shafts, adjacent gear rotating shafts are meshed together through gear teeth on the gear rotating shafts, a plurality of connecting parts are used for connecting the gear-shaped rotating shafts, and after an external force is borne, each gear rotating shaft is in meshing transmission through the change of meshing positions, so that the rotating shafts are bent to be in a state under a preset condition; through the combination of a plurality of gear shafts and adapting unit, form the pivot that can bend, and then when the pivot was arranged in flexible screen electronic equipment, can make flexible screen electronic equipment folding to reduce the volume of equipment, conveniently carried.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having different letter suffixes may represent different examples of similar components. The drawings illustrate generally, by way of example, but not by way of limitation, various embodiments discussed herein.

FIG. 1 is a schematic view of a bent rotating shaft according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a first structural gear shaft according to an embodiment of the present invention;

FIG. 3 is a schematic view of a rotating shaft in a straightened state according to an embodiment of the present invention;

FIG. 4 is a schematic view of a spindle in one form during bending in accordance with one embodiment of the present invention;

FIG. 5 is a schematic view of another embodiment of a rotating shaft during a bending process according to the present invention;

FIG. 6 is a schematic view of a first connecting member according to an embodiment of the present invention;

FIG. 7 is a schematic view of a first connector portion after connection according to one embodiment of the present invention;

FIG. 8 is a schematic view of a bent rotating shaft according to a second embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a gear shaft according to a second embodiment of the present invention;

FIG. 10 is a schematic view of the rotating shaft in a straightened state according to the second embodiment of the present invention;

FIG. 11 is a schematic view of a spindle in one form during bending in accordance with a second embodiment of the present invention;

FIG. 12 is a schematic view of another embodiment of the hinge during bending according to the second embodiment of the present invention;

FIG. 13 is a schematic view of a third embodiment of a hinge during a bending process according to an embodiment of the present invention;

FIG. 14 is a schematic view of a fourth embodiment of a rotating shaft in a bending process according to a second embodiment of the present invention;

FIG. 15 is a schematic view of a third embodiment of a bent shaft structure;

FIG. 16 is a schematic view of the rotating shaft in a straightened state according to the third embodiment of the present invention;

FIG. 17 is a schematic view of a spindle in one form of a triple bending process in accordance with an embodiment of the present invention;

FIG. 18 is a schematic view of another embodiment of a spindle during a triple bending process in accordance with the present invention;

FIG. 19 is a schematic view of a third embodiment of a hinge during a third bending process according to an embodiment of the present invention;

FIG. 20 is a schematic view of a fourth embodiment of a hinge during a third bending process according to an embodiment of the present invention;

FIG. 21 is a schematic view of a fifth embodiment of a rotating shaft in a third bending process according to the present invention;

FIG. 22 is a schematic view of a four-bend hinge according to an embodiment of the present invention;

FIG. 23 is a schematic view of the rotating shaft in a stretched state in accordance with the present invention;

FIG. 24 is a schematic view of a spindle in one form of a four-bend process in accordance with an embodiment of the present invention;

FIG. 25 is a schematic view of another embodiment of a hinge during a four-bending process in accordance with the present invention;

FIG. 26 is a schematic view of a third embodiment of a hinge during a four-bending process in accordance with an embodiment of the present invention;

FIG. 27 is a schematic view of a fifth embodiment of a bent shaft structure;

FIG. 28 is a schematic view of the rotating shaft in a straightened state according to the fifth embodiment of the present invention;

FIG. 29 is a schematic view of a spindle in one form of a five bend process in accordance with an embodiment of the present invention;

FIG. 30 is a schematic view of another embodiment of a rotating shaft in a five-bending process according to the present invention;

FIG. 31 is a diagram of an electronic device after six folds, according to an embodiment of the invention;

FIG. 32 is a diagram of another electronic device after six folds, in accordance with an embodiment of the present invention;

FIG. 33 is a sixth folded electronic device according to an embodiment of the invention;

FIG. 34 is a sixth folded fourth electronic device according to an embodiment of the invention;

fig. 35 is a front view of an electronic device in a straightened state according to a sixth embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

In various embodiments of the invention: the rotating shaft provided by the embodiment of the invention comprises:

In addition, the plurality of coupling members include a first coupling member provided at an axial center position of the gear shaft, and configured to generate a frictional force on a contact surface with the gear shaft during the bending of the shaft so that the shaft can be maintained in any state during the bending.

In one embodiment, the bending state of the rotating shaft can be designed according to the requirement in practical application, such as a C-shaped structure, a Z-shaped structure, a G-shaped structure, and the like. According to the designed bending state of the rotating shaft, the rotating shaft needs to comprise a bendable part, and each gear rotating shaft in the bendable part is a first structure gear rotating shaft; the first structure gear rotating shaft is a gear rotating shaft with a double-wheel structure; the rotating shaft comprises a first gear wheel rotating shaft chain and a second gear wheel rotating shaft chain;

Further, according to the designed bending state of the rotating shaft, the rotating shaft can further comprise a transmission part, and the plurality of connecting parts further comprise a second connecting part; each gear rotating shaft in the transmission part is a second structure gear rotating shaft; the second structure gear rotating shaft is a gear rotating shaft with a single-wheel structure;

The rotating directions of the two ends of the transmission part can be controlled by the number of the rotating shafts of the second structure gear in the transmission part, so that the designed bending state of the rotating shafts is achieved.

Specifically, the number of the second structure gear rotating shafts in the transmission part is odd; in the bending process of the rotating shaft, two ends of the transmission part have the same rotating direction.

The number of the second structure gear rotating shafts in the transmission part is even; and in the bending process of the rotating shaft, two ends of the transmission part have opposite rotating directions.

In practical application, the combination of the plurality of gear rotating shafts and the connecting parts forms a rotating shaft which can be bent, and the rotating shaft can be used in flexible screen electronic equipment. When the flexible screen electronic equipment is needed, an external force can be applied to the rotating shaft, so that the flexible screen electronic equipment is in a straightened state, and a user can perform corresponding operation through a display area with a large area; when not using flexible screen electronic equipment, can exert an external force to the countershaft to fold flexible screen electronic equipment, thereby make flexible screen electronic equipment be in the bending state, like this, can reduce flexible screen electronic equipment's volume, thereby conveniently accomodate and carry.

In addition, through the meshing transmission between the gear rotating shafts, the flexible screen electronic equipment can be accurately positioned.

The construction of the spindle and the electronic device that can be implemented will be described below with reference to different embodiments.

Example one

The present embodiment provides a spindle, as shown in fig. 1, including:

bendable portions 10, each of which is a first-structure gear rotation shaft 11; as shown in fig. 2, the first structural gear rotating shaft is a gear rotating shaft with a double-wheel structure.

More specifically, the rotating shaft includes a first gear wheel rotating shaft chain 12 and a second gear wheel rotating shaft chain 13; wherein,

in the first gear wheel rotating shaft chain 12, adjacent first structure gear rotating shafts 11 are meshed together through gear teeth;

in the second gear wheel rotating shaft chain 13, adjacent first structure gear rotating shafts 11 are meshed together through gear teeth;

a first structure gear rotating shaft in the first gear rotating shaft chain is connected with a first structure gear rotating shaft in the second gear rotating shaft chain by a first connecting part 14 in a shaft center staggered mode;

the first connecting member 14 is also used to generate a frictional force on a contact surface with the gear shaft during the bending of the shaft, so that the shaft can be held in any state during the bending.

When an external force is applied to the rotating shaft, namely the rotating shaft bears the external force, each of the gear rotating shafts generates meshing transmission through the change of the meshing position, so that the rotating shaft is bent to a state under a preset condition.

Specifically, as shown in fig. 3, the rotating shaft is in a straight state, and after an external force is applied to the rotating shaft, each of the plurality of first structural gear rotating shafts 11 generates meshing transmission through the change of the meshing position, so that the rotating shaft starts to bend as shown in fig. 4, as the meshing transmission continues, the rotating shaft is bent as shown in fig. 5, and as the meshing transmission further proceeds, the rotating shaft bends to a final state as shown in fig. 1.

Of course, when the rotating shaft is in the bending state shown in fig. 1, after an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts is in meshing transmission through the change of the meshing position, and the rotating shaft can finally assume the straight state shown in fig. 3 according to the reverse process of fig. 4 and 5.

In the process of bending the rotating shaft, the angle between each adjacent first-structure gear rotating shafts 11 is changed by the change of the meshing position between the adjacent first-structure gear rotating shafts 11 and the interaction between the first gear rotating shaft chain 12 and the second gear rotating shaft chain 13, so that the rotating shaft finally assumes the bending state of the C-shaped structure, and the rotating shaft can be maintained in the bending state of the C-shaped structure by the friction force generated by the contact surface between the first connecting part 14 and the first-structure gear rotating shaft 11.

Here, in the shaft bending process, the gears of the first structural gear rotating shaft 11 in the first gear wheel rotating shaft chain 12 and the gears of the first structural gear rotating shaft 11 in the second gear wheel rotating shaft chain 13 are arranged in a staggered manner, therefore, when the angle between two adjacent gears in the first gear wheel rotation axis chain 12 changes, the corresponding one gear in the second gear wheel rotation axis chain 13 will rotate relative to the adjacent gear, and transmits this rotation back to the first gear wheel axle chain 11. similarly, the change in angle between two adjacent gears in the second gear wheel axle chain 13 will drive a corresponding gear in the first gear wheel axle chain 12 to rotate relative to its adjacent gear, and transmit this rotation back to the second gear wheel axle chain 13, so as to achieve the common movement of the whole bending part, and further change the angle between every two adjacent first structure gear rotating shafts 11.

Here, since the first connecting member 14 is provided in each axis center of the first structural gear rotating shaft 11, it is generally shaped like a cylinder as shown in fig. 6.

In practical applications, the friction force generated by the contact surface of the first connecting part 14 and the first structural gear rotating shaft 11 can be realized through many processes, such as:

in the first mode, a screw thread is provided on the outer wall of the first connecting member 14, and a corresponding screw thread is also provided in the axis of the first structural gear rotating shaft 11, and a friction force is generated by a nut or a nut;

in the second mode, the diameter of the first connecting member 14 is increased to be close to or slightly larger than the diameter of the axial hole of the first structural gear rotating shaft 11, and a friction force is generated during the rotation of the first structural gear rotating shaft 11.

In practical application, the design may be made as required, and only the first connecting part 14 in a proper position on the entire rotating shaft is allowed to generate friction force with the contact surface of the first structural gear rotating shaft 11, as long as the rotating shaft can be maintained in any state during the bending process.

In addition, a spring piece may be disposed at the position of the first structure gear shaft 11, and the spring piece assists the first connecting portion 14 to maintain the shaft in any state during the bending process.

In one embodiment, to further ensure the integrity of the shafts, and to avoid the first structural gear shaft 11 from falling off due to non-human factors, a plurality of first connecting parts 14 may be connected as shown in fig. 7.

In practical application, the number of the first structural gear rotating shafts 11 can be determined according to the design requirement of the rotating shafts.

Example two

The present embodiment provides a spindle, as shown in fig. 8, including: the bending part 10 and the transmission part 20 are arranged at intervals; the outer ends of the bent parts at the two ends of the rotating shaft are respectively connected with the supporting parts, and the supporting parts are bent towards opposite directions under the bending state of the rotating shaft, so that the two supporting parts are parallel to the at least one transmission part;

each gear rotating shaft in the bendable part is a first structure gear rotating shaft 11; as shown in fig. 2, the first structural gear rotating shaft 11 is a gear rotating shaft with a double-wheel structure;

each gear rotating shaft in the transmission part is a second structure gear rotating shaft 21; as shown in fig. 9, the second structural gear rotating shaft 21 is a gear rotating shaft with a single-wheel structure;

wherein the bendable portion 10 includes: the first gear wheel rotating shaft chain and the second gear wheel rotating shaft chain;

in the first gear wheel rotating shaft chain, adjacent first structure gear rotating shafts 11 are meshed together through gear teeth;

in the second gear wheel rotating shaft chain, adjacent first structure gear rotating shafts 11 are meshed together through gear teeth;

a first structural gear rotating shaft 11 in the first gear rotating shaft chain and a first structural gear rotating shaft 11 in the second gear rotating shaft chain are connected 14 by a first connecting part in a shaft center staggered mode;

in the transmission part, adjacent second structure gear rotating shafts 21 are meshed together through gear teeth; the first connecting part 14 is arranged at the axial center position of each second structure gear rotating shaft 21; and each of the first coupling parts provided on the rotation shafts of the second structure gears is fixed to the second coupling part (not shown in the drawings, the purpose of fixing to the second coupling part is to make the angle between the adjacent second structure gears 21 in the first transmission part 201 not change when the engagement position is changed);

one end part of the transmission part is meshed with one end part of one bendable part through gear teeth; the other end part of the transmission part is meshed with one end part of the other bendable part through gear teeth; the second structure gear rotating shaft 21 positioned at the end part of the transmission part is connected with the first structure gear rotating shaft 11 positioned at the end part of the bendable part by adopting the first connecting part 14 in an axle center mode;

In the process of bending the rotating shafts, the angles between the adjacent first structure gear rotating shafts 11 are changed through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between the two gear rotating shaft chains of each bending part.

In the rotating shaft bending process, the angle between the adjacent second structure gear shafts 21 in the transmission part is not changed through the change of the meshing position between the adjacent second structure gear rotating shafts 21.

Specifically, the rotating shaft includes:

a first curved portion 101;

a second curved portion 102;

a third curved portion 103;

a first transmission section 201; the number of the second structure gear rotating shafts in the first transmission part 201 is even;

the number of the second structure gear rotating shafts in the second transmission part 202 is even;

a first support member 151 with gear teeth; a second support member 152 with gear teeth; the lengths of the first support member 151 and the second support member 152 are different;

one end of the first bending portion 101 is connected to one end of the first supporting member 151 with a gear by the first connecting member 14 in an axial center manner; the other end of the first bending portion 101 is connected to one end of the first transmission portion 201 by the first connection member 14 in an axial center manner; the other end of the first transmission portion 201 and one end of the second bending portion 102 are connected to each other by the first connection member 14 in an axial center manner; the other end of the second bending portion 102 is connected to one end of the second transmission portion 202 by the first connecting member 14 in an axial center manner; the other end of the second transmission portion 202 is connected to one end of the third bending portion 103 by the first connecting member 14 in an axial center manner; one end of the third curved portion 103 is connected to the gear-equipped end of the second support member 152 by the first connecting member 14 in an axial center manner.

Here, the lengths of the first support member 151 and the second support member 152 are not the same; generally, the first supporting part 151 is longer than the second supporting part 152, so that a standard G-shape is formed when the rotation shaft is bent. The reason for this design is: the problem of interference between the first support member 151 and the second support member 152 during the bending process is avoided.

As shown in fig. 10, the rotating shaft is in a straight state, and when an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts generates meshing transmission through the change of the meshing position, so that the rotating shaft starts to bend, as shown in fig. 11; as the meshing transmission continues, the rotating shaft is bent as shown in fig. 12, as the meshing transmission further proceeds, the rotating shaft is bent as shown in fig. 13, and as the meshing transmission continues, the rotating shaft is bent as shown in fig. 14; eventually, the shaft will bend to the final state as shown in fig. 8.

Of course, when the rotating shaft is in the bending state shown in fig. 8, after an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts is in meshing transmission through the change of the meshing position, and the rotating shaft can finally assume the straight state shown in fig. 10 according to the reverse process of fig. 11-14.

Wherein, in the transmission process, the angles between the adjacent first structure gear shafts 11 are changed through the change of the meshing position between the adjacent first structure gear shafts 11 and the interaction between the two gear wheel rotating shaft chains of each bending part, the angles between the adjacent second structure gear shafts 21 in the first transmission part 201 are not changed through the change of the meshing position between the adjacent second structure gear shafts 21, the two ends of the first transmission part 201 have opposite rotating directions through an even number of second structure gear shafts 21, the angles between the adjacent second structure gear shafts 21 in the second transmission part 202 are not changed through the change of the meshing position between the adjacent second structure gear shafts 21, and the two ends of the second transmission part 202 have opposite rotating directions through an even number of second structure gear shafts 21, thereby, the rotating shaft finally assumes the bent state of the G-shaped structure, and the rotating shaft can be held in the bent state of the G-shaped structure by the frictional force generated by the contact surface between the first connecting member 14 and the first structure gear rotating shaft 11 and/or by the frictional force generated by the contact surface between the first connecting member 14 and the second structure gear rotating shaft 21.

In the process of bending the rotating shaft, in each bending part, the gears of the first structural gear rotating shafts in the first gear rotating shaft chain and the gears of the first structural gear rotating shafts in the second gear rotating shaft chain are arranged in a staggered mode, so that when the angle change between two adjacent gears in the first gear rotating shaft chain drives one corresponding gear in the second gear rotating shaft chain to rotate relative to the adjacent gear and transmits the rotation back to the first gear rotating shaft chain.

Here, since the first connecting member 14 is provided in each of the axial centers of the first structural gear rotary shaft 11 and the second structural gear rotary shaft 21, it is generally cylindrical in shape as shown in fig. 6.

In practical applications, the friction generated by the contact surfaces of the first connecting part 14 and the first structural gear rotating shaft 11 and the second structural gear rotating shaft 21 can be realized through many processes, such as:

in the first mode, a thread is provided on the outer wall of the first connecting part 14, and corresponding threads are also provided in the axial centers of the first structural gear rotating shaft 11 and the second structural gear rotating shaft 21, so that a friction force is generated by means of a nut or a nut;

in the second mode, the diameter of the first connecting part 14 is increased to be close to or slightly larger than the diameters of the axle holes of the first structural gear rotating shaft 11 and the second structural gear rotating shaft 21, and friction force is generated during the rotation of the first structural gear rotating shaft 11 and the second structural gear rotating shaft 21.

In practical application, the design may be made as required, and only the first connecting part 14 in a proper position is allowed to generate friction force with the contact surfaces of the first structural gear rotating shaft 11 and the second structural gear rotating shaft 21 on the whole rotating shaft as long as the rotating shaft can be kept in any state during the bending process.

In addition, a spring piece may be disposed at the position of the first structural gear rotating shaft 11 and the second structural gear rotating shaft 21, and the first connecting portion 14 is assisted by the spring piece to keep the rotating shafts in any state during the bending process.

In practical application, the number of the first structural gear rotating shaft 11 and the second structural gear rotating shaft 21 can be determined according to the design requirement of the rotating shafts.

EXAMPLE III

The present embodiment provides a spindle, as shown in fig. 15, including: the bending part and the transmission part are arranged at intervals; the outer ends of the bent parts at the two ends of the rotating shaft are respectively connected with the supporting parts, and the supporting parts are bent towards opposite directions under the bending state of the rotating shaft, so that the three supporting parts are parallel to the at least one transmission part;

each gear rotating shaft in the bendable part is a first structure gear rotating shaft 11; as shown in fig. 2, the first structural gear rotating shaft is a gear rotating shaft with a double-wheel structure;

wherein the bendable portion includes: the first gear wheel rotating shaft chain and the second gear wheel rotating shaft chain;

in the transmission part, adjacent second structure gear rotating shafts 21 are meshed together through gear teeth; the first connecting part 14 is arranged at the axial center position of each second structure gear rotating shaft 21; and each first connecting component arranged on the rotating shaft of the second structure gear is fixed on the second connecting component, which is not shown in the figure, and the purpose of fixing on the second connecting component is as follows: when the meshing position is changed so that the angle between the adjacent second structure gear shafts 21 in the first transmission portion 201 is not changed);

Specifically, the rotating shaft includes:

a fourth curved portion 104;

a fifth curved portion 105;

a sixth curved portion 106;

a third transmission portion 203; the number of the second structure gear rotating shafts 21 in the third transmission part 203 is even;

a third support member 153 with gear teeth; a fourth support member 154 with gear teeth; a fifth support member 155 with gear teeth;

one end of the fourth curved portion 104 is connected to one end of the third support member 153 with a gear by the first connecting member 14 in an axial center manner; the other end of the fourth bending portion 104 is connected to one end of the third transmission portion 203 by the first connecting member 14 in an axial center manner; the other end of the third transmission part 203 is connected to one end of the fifth bending part 105 by the first connecting member 14 in an axial center manner; the other end of the fifth bent portion 105 is connected to one end of the fourth support member 154 by the first connection member 14 in an axial center manner; the other end of the fourth supporting member 154 is connected to one end of the sixth bending portion 106 by the first connecting member 14 in an axial center manner; the other end of the sixth bending portion 106 is connected to the end of the fifth support member 155 having the gear via the first connecting member 14 in an axial center manner.

As shown in fig. 16, the rotating shaft is in a straight state, and when an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts generates meshing transmission through the change of the meshing position, so that the rotating shaft starts to bend, as shown in fig. 17; as the meshing transmission continues, the rotating shaft is bent as shown in fig. 18, as the meshing transmission further proceeds, the rotating shaft is bent as shown in fig. 19, and as the meshing transmission continues, the rotating shaft is bent as shown in fig. 20; as the meshing transmission proceeds further, the rotating shaft bends to a bend as shown in fig. 21; eventually, the shaft will bend to its final state as shown in fig. 15.

Of course, when the rotating shaft is in the bending state shown in fig. 15, after an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts is in meshing transmission through the change of the meshing position, and the rotating shaft can finally assume the straight state shown in fig. 16 according to the reverse process of fig. 17-21.

Wherein, in the transmission process, the angles between the adjacent first structure gear rotating shafts 11 are changed through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between the two gear rotating shaft chains of each bending part, the angles between the adjacent second structure gear rotating shafts 21 in the three transmission parts 203 are not changed through the change of the meshing position between the adjacent second structure gear rotating shafts 21, the two ends of the third transmission part 203 have opposite rotating directions through an even number of second structure gear rotating shafts 21, so that the rotating shafts finally present the bending state of a G-shaped structure, and the friction force generated by the contact surface of the first connecting part 14 and the first structure gear rotating shafts 11 and/or the friction force generated by the contact surface of the first connecting part 14 and the second structure gear rotating shafts 21, the rotation shaft can be maintained in a bent state of the G-shaped structure.

Example four

The present embodiment provides a spindle, as shown in fig. 22, including: the outer ends of the bent parts at two ends of the rotating shaft are respectively connected with the supporting parts, and the supporting parts are bent towards the same direction under the bending state of the rotating shaft, so that the two supporting parts are parallel to at least one transmission part;

Specifically, the rotating shaft includes:

a seventh curved portion 107;

an eighth bend 108;

a fourth transmission portion 204; the number of the second structure gear rotating shafts 21 in the fourth transmission part 204 is odd;

a sixth support member 156 with gear teeth; a seventh supporting member 157 with gear teeth;

one end of the seventh curved portion 107 is connected to the end of the sixth support member 156 having a gear by the first connecting member 14 in an axial center manner; the other end of the seventh bending portion 107 is connected to one end of the fourth transmission portion 204 by the first connecting member 14 in an axial center manner; the other end of the fourth transmission portion 204 is connected to one end of the eighth bending portion 108 by the first connecting member 14 in an axial center manner; the other end of the eighth bending portion 108 is connected to the end of the seventh support member 157 with a gear via the first connecting member 14 in an axial center manner.

As shown in fig. 23, the rotating shafts are in a straight state, and after an external force is applied to the rotating shafts, each of the plurality of gear rotating shafts generates meshing transmission through the change of the meshing position, so that the rotating shafts start to bend, as shown in fig. 24; as the meshing transmission proceeds, the rotating shaft is bent as shown in fig. 25, and as the meshing transmission proceeds further, the rotating shaft is bent as shown in fig. 26; eventually, the shaft will bend to its final state as shown in fig. 22.

Of course, when the rotating shaft is in the bending state shown in fig. 22, after an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts is in meshing transmission through the change of the meshing position, and the rotating shaft can finally assume the straight state shown in fig. 23 according to the reverse process of fig. 24-26.

In the transmission process, the angles between the adjacent first structure gear rotating shafts 11 are changed through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between two gear rotating shaft chains of each bending part, the angles between the adjacent second structure gear rotating shafts 21 in the fourth transmission part 204 are not changed through the change of the meshing position between the adjacent second structure gear rotating shafts 21, the two ends of the fourth transmission part 204 have the same rotating direction through an odd number of second structure gear rotating shafts 21, so that the rotating shafts finally present the bending state of a Z-shaped structure, and the friction force generated through the contact surface of the first connecting part 14 and the first structure gear rotating shafts 11 and/or the friction force generated through the contact surface of the first connecting part 14 and the second structure gear rotating shafts 21, the rotation shaft can be maintained in a bent state of the G-shaped structure.

EXAMPLE five

The present embodiment provides a spindle, as shown in fig. 27, including: the outer ends of the bent parts at two ends of the rotating shaft are respectively connected with the supporting parts, and the supporting parts are bent towards the same direction under the bending state of the rotating shaft, so that the two supporting parts are perpendicular to at least one transmission part;

Specifically, the rotating shaft includes:

a ninth bend 109;

a tenth bend 1010;

an eleventh curved portion 1011;

a twelfth curved portion 1012;

a thirteenth curved portion 1013;

a fifth transmission portion 205; the number of the second structural gear rotating shafts 21 in the fifth transmission part 205 is even;

a sixth transmission portion 206; the number of the second structure gear rotating shafts 21 in the sixth transmission part 206 is odd;

a seventh transmission portion 207; the number of the second structure gear rotating shafts 21 in the seventh transmission part 207 is odd;

an eighth transmission portion 208; the number of the second structural gear rotating shafts 21 in the eighth transmission part 208 is even;

an eighth support member 158 with gear teeth; a ninth support member 159 with gear teeth;

one end of the ninth bending portion 109 is connected to the end of the eighth support member 158 with a gear by the first connecting member 14 in an axial center manner; the other end of the ninth bending portion 108 is connected to one end of the fifth transmission portion 205 through the first connecting member 14 in an axial manner; the other end of the fifth transmission part 205 and one end of the tenth bending part 1010 are connected by the first connection member 14 in an axial center manner; the other end of the tenth bending portion 1010 is connected to the sixth transmission portion 206 by the first connection member 14 in an axial center manner; the other end of the sixth transmission portion 206 is connected to one end of the eleventh curved portion 1011 through the first connecting member 14 in an axial center manner; the other end of the eleventh bending portion 1011 is connected to one end of the seventh transmission portion 207 via the first connecting member 14 in an axial center manner; the other end of the seventh transmission part 207 is connected to one end of the twelfth bending part 1012 by the first connecting member 14 in an axial center manner; the other end of the twelfth curved portion 1012 is connected to one end of the eighth transmission portion 208 by the first connection member 14 in an axial center manner; one end of the eighth transmission unit 208 is connected to one end of the thirteenth curved unit 1013 by the first connecting member 14 in an axial center manner; the other end of the thirteenth curved portion 1013 is connected to the end of the ninth support member 159 having the gear by the first connecting member 14 in an axial center manner.

As shown in fig. 28, the rotating shaft is in a straight state, and when an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts generates meshing transmission through the change of the meshing position, so that the rotating shaft starts to bend, as shown in fig. 29; as the meshing transmission continues, the rotating shaft is bent as shown in fig. 30; eventually, the shaft will bend to the final state as shown in fig. 27.

Of course, when the rotating shaft is in the bending state shown in fig. 27, after an external force is applied to the rotating shaft, each of the plurality of gear rotating shafts is in meshing transmission through the change of the meshing position, and the rotating shaft can finally assume the straight state shown in fig. 28 according to the reverse process of fig. 29-30.

Wherein, in the transmission process, the angles between the adjacent first structure gear rotating shafts 11 are changed through the change of the meshing position between the adjacent first structure gear rotating shafts 11 and the interaction between the two gear rotating shaft chains of each bending part, the angles between the adjacent second structure gear shafts 21 in each transmission part are not changed through the change of the meshing position between the adjacent second structure gear rotating shafts 21, the opposite rotating directions are provided at the two ends of the fifth transmission part 205 and the eighth transmission part 208 through the even number of the second structure gear rotating shafts 21, the same rotating directions are provided at the two ends of the sixth transmission part 206 and the seventh transmission part 207 through the odd number of the second structure gear rotating shafts 21, so that the rotating shafts finally present the bending state of sigma type structure, and the friction force generated by the contact surface of the first connecting part 14 and the first structure gear rotating shafts 11, and/or the frictional force generated by the contact surface between the first coupling member 14 and the second configuration gear shaft 21 can hold the shaft in the bent state of the sigma-shaped configuration.

EXAMPLE six

The present embodiment provides an electronic device, including:

a housing;

a flexible screen;

a rotating shaft;

the pivot includes:

In practical application, the rotating shaft of the electronic device may adopt the rotating shaft (C-shaped rotating shaft) described in the first embodiment. In this case, when the electronic apparatus is in the fully folded state, as shown in fig. 31, the appearance of the electronic apparatus takes on a C-type appearance due to the rotation shaft.

The hinge of the electronic device can also adopt the hinges (G-type hinges) described in the second and third embodiments. In this case, when the electronic apparatus is in the fully folded state, as shown in fig. 32, the appearance of the electronic apparatus takes on a G-type appearance due to the rotation shaft.

The hinge of the electronic device may also adopt the hinge (Z-shaped hinge) described in the fourth embodiment. In this case, when the electronic apparatus is in the fully folded state, as shown in fig. 33, the appearance of the electronic apparatus takes on a Z-shaped appearance due to the rotation axis.

Of course, the spindle of the electronic device may also adopt the spindle (Σ -type spindle) described in embodiment five. In this case, when the electronic apparatus is in the fully folded state, as shown in fig. 34, the electronic apparatus appears as a sigma-type appearance due to the rotation shaft.

Here, in practical applications, the electronic device may have at least one set of hinge. In other words, the rotating shaft may have at least one set of rotating shafts according to the requirements of the actual product.

When the electronic device has at least two sets of rotating shafts, the positions of the at least two sets of rotating shafts can be determined according to the actual situation of the product, for example, the two sets of rotating shafts are located in the middle of the flexible screen, or located on one side of the flexible screen, or located on both sides of the flexible screen.

Here, when electronic equipment has at least two sets of pivots, two sets of pivots in at least two sets of pivots can be located the outside of flexible screen, so, can avoid appearing the problem that the condition is inequality that curls in electronic equipment's both ends to make and fold well between pivot, shell, the flexible screen.

As shown in fig. 35, when the electronic device is viewed from the front, the two sides of the flexible screen refer to: the upper and lower both sides of flexible screen.

In order to avoid that the tail end of the rotating shaft is dislocated and vacant due to the difference of the inner diameter and the outer diameter during bending and the tail end is affected, the rotating shaft, the shell and the flexible screen can be well folded, and the neutral layer of the rotating shaft can be overlapped with the neutral layer of the electronic equipment.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A spindle, comprising:

2. The rotating shaft according to claim 1, wherein the plurality of connecting members include a first connecting member provided at a position of a shaft center of the gear rotating shaft for generating a frictional force at a contact surface with the gear rotating shaft during the bending of the rotating shaft so that the rotating shaft can be held in any state during the bending.

3. The shaft according to claim 2, wherein the shaft includes bendable portions, each of the gear shafts in the bendable portions being a first structural gear shaft; the first structure gear rotating shaft is a gear rotating shaft with a double-wheel structure; the rotating shaft comprises a first gear wheel rotating shaft chain and a second gear wheel rotating shaft chain;

4. The shaft according to claim 3, further comprising a transmission portion, wherein the plurality of connecting members further comprises a second connecting member; each gear rotating shaft in the transmission part is a second structure gear rotating shaft; the second structure gear rotating shaft is a gear rotating shaft with a single-wheel structure;

5. The rotating shaft according to claim 4, wherein the number of the second structure gear rotating shafts in the transmission part is odd; in the bending process of the rotating shaft, two ends of the transmission part have the same rotating direction.

6. The rotating shaft according to claim 4, wherein the number of the second structure gear rotating shafts in the transmission part is even; and in the bending process of the rotating shaft, two ends of the transmission part have opposite rotating directions.

7. An electronic device, the electronic device comprising:

a housing;

a flexible screen;

a rotating shaft;

the pivot includes:

8. The electronic device according to claim 7, wherein the plurality of connecting members include a first connecting member disposed at a position of a shaft center of the gear shaft for generating a frictional force at a contact surface with the gear shaft during the bending of the shaft so that the shaft can be held in any state during the bending.

9. The electronic device according to claim 8, wherein the hinge includes bendable portions, each of the gear hinges in the bendable portions being a first-structure gear hinge; the first structure gear rotating shaft is a gear rotating shaft with a double-wheel structure; the rotating shaft comprises a first gear wheel rotating shaft chain and a second gear wheel rotating shaft chain;

10. The electronic device of claim 9, wherein the hinge further comprises a transmission portion, and the plurality of connecting members further comprises a second connecting member; each gear rotating shaft in the transmission part is a second structure gear rotating shaft; the second structure gear rotating shaft is a gear rotating shaft with a single-wheel structure;

11. The electronic device of claim 10, wherein the number of the second structure gear rotating shafts in the transmission part is an odd number; in the bending process of the rotating shaft, two ends of the transmission part have the same rotating direction.

12. The electronic device according to claim 10, wherein the number of the second structure gear rotating shafts in the transmission portion is an even number; and in the bending process of the rotating shaft, two ends of the transmission part have opposite rotating directions.

13. The electronic device of claim 10, wherein the hinge comprises a bending portion and a transmission portion, the bending portion and the transmission portion are disposed at an interval, outer ends of the bending portions at two ends of the hinge are respectively connected to the supporting members, and in a bent state of the hinge, the supporting members are bent in opposite directions, so that the two supporting members are parallel to at least one of the transmission portions;

14. The electronic device of claim 10, wherein the hinge comprises a bending portion and a transmission portion, the bending portion and the transmission portion are disposed at an interval, outer ends of the bending portions at two ends of the hinge are respectively connected to the supporting members, and in a bent state of the hinge, the supporting members are bent in the same direction, such that the two supporting members are parallel to the at least one transmission portion.

15. The electronic device of any of claims 7-14, wherein the electronic device has at least one set of hinge.

16. The electronic device of claim 15, wherein the neutral layer of the hinge coincides with the neutral layer of the electronic device.