CN106292849B

CN106292849B - Rotating shaft and electronic equipment

Info

Publication number: CN106292849B
Application number: CN201510282891.9A
Authority: CN
Inventors: 马映峰; 张强; 田婷
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2015-05-28
Filing date: 2015-05-28
Publication date: 2020-02-21
Anticipated expiration: 2035-05-28
Also published as: CN106292849A

Abstract

The application discloses pivot and electronic equipment, the pivot includes: a shaft core; a fastening member; the shaft sleeve is sleeved on the shaft core and the fastening part; the fastening member has a locked state in which the shaft core is locked and an unlocked state in which the shaft core is unlocked, and when the fastening member is in the locked state, the sleeve is not rotatable relative to the shaft core by an external force, and when the fastening member is in the unlocked state, the sleeve is rotatable relative to the shaft core by the external force. The invention provides the rotating shaft and the electronic equipment, which are used for solving the technical problem that the rotating shaft mode in the electronic equipment is single in the prior art and achieving the technical effect of increasing the form of the rotating shaft.

Description

Rotating shaft and electronic equipment

Technical Field

The present invention relates to the field of electronic technologies, and in particular, to a rotating shaft and an electronic device.

Background

Along with the continuous development of scientific technology, electronic equipment has also obtained rapid development, and the kind of electronic product is also more and more, and people also enjoy the various facilities that scientific development brought, and people can enjoy the comfortable life that brings along with scientific and technological development through various types of electronic equipment now.

In the prior art, if the electronic device includes the pivot structure, the first body and the second body of electronic device are connected to the pivot structure, and under the effect of external force, first body and second body alright rotate relatively.

In the process of implementing the technical scheme in the embodiment of the present application, the inventor of the present application finds that at least the following technical problems exist in the prior art:

because each part in the rotating shaft of the electronic equipment in the prior art can be in a relative rotating state only under the action of external force, the technical problem that the mode of the rotating shaft in the electronic equipment is single exists in the prior art.

Disclosure of Invention

The embodiment of the application provides a rotating shaft and electronic equipment, solves the technical problem that a rotating shaft mode in the electronic equipment is single in the prior art, and achieves the technical effect of increasing the form of the rotating shaft.

The application provides a pivot, includes:

a shaft core;

a fastening member;

the shaft sleeve is sleeved on the shaft core and the fastening part;

the fastening member has a locked state in which the shaft core is locked and an unlocked state in which the shaft core is unlocked, and when the fastening member is in the locked state, the sleeve is not rotatable relative to the shaft core by an external force, and when the fastening member is in the unlocked state, the sleeve is rotatable relative to the shaft core by the external force.

Optionally, the shaft core includes a first end and a second end, the fastening component includes a third end, the third end is close to the second end, the third end has a first structure, and when the shaft core is in a fixed state with the fastening component through the first structure, the fastening component is in the locked state; when the shaft core is released from the fixed state by the first structure, the fastening member is in the unlocked state;

wherein when the tightening member is in the locked state, the tightening member is fixed relative to the bushing such that the bushing is not rotatable relative to the core.

Optionally, when the first structure is a groove, the groove can accommodate a first portion of the shaft core including the second end, and the shape of the groove matches the shape of the first portion, wherein when the first portion is fully located in the groove and is engaged and fixed with the groove, the fastening member is in the locked state, and when the first portion is separated from the groove, the fastening member is in the unlocked state.

Optionally, the second cross-sectional area of the second end is smaller than the first cross-sectional area of the first end.

Optionally, when the first structure is a buckle, a slot is disposed on the second end, wherein when the buckle and the slot are in a clamped state, the fastening component is in the locked state, and when the buckle and the slot are in a non-clamped state, the fastening component is in the non-locked state.

Optionally, a first thread is arranged on the inner surface of the shaft sleeve, and a second thread matched with the first thread is arranged on the surface area of the fastening component; wherein the tightening member is transitioned between the locked state and the unlocked state by the interengagement of the first and second threads when the tightening member is rotated.

Optionally, the fastening member includes a fourth end, the fourth end is provided with a rotating structure, wherein when the rotating structure is rotated in a first direction, the fastening member can be driven to move to the locking state through the engagement of the first thread and the second thread; when the rotating structure is rotated in a second direction opposite to the first direction, the fastening part can be driven to move to the unlocking state through the engagement of the first thread and the second thread.

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

a first rotating shaft;

the first body is connected to the shaft core of the first rotating shaft;

a second body; and the shaft sleeve is connected to the first rotating shaft.

Optionally, the electronic device further includes a second rotating shaft, the first body is connected to the shaft core of the first rotating shaft and the shaft core of the second rotating shaft, and the second body is connected to the shaft sleeve of the first rotating shaft and the shaft sleeve of the second rotating shaft.

Optionally, when the second body is a bracket, a hole is formed in the second body, and the hole is used for carrying or hanging the electronic device.

Optionally, the electronic device has a first mode and a second mode, wherein when the electronic device is in the first mode, a first angle between the bracket and the first body is an acute angle and the fastening part is in the locked state, the bracket being capable of supporting the first body at the first angle; when the electronic device is in the second mode, the fastening member is in the unlocked state, and the electronic device may be hung or carried by hand via the stand.

One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

the scheme in the embodiment of the application is that a fastening part is arranged in a rotating shaft, when the fastening part and a shaft core are in a locking state, a relatively fixed state is arranged between a shaft sleeve of the rotating shaft and the shaft core, at the moment, under the action of external force, relative motion cannot be generated between the shaft sleeve and the shaft core, when the fastening part and the shaft core are in a non-locking state, when the external force acts, the shaft core of the rotating shaft can rotate relative to the shaft sleeve, and therefore the technical problem that the rotating shaft mode in electronic equipment existing in the prior art is single is solved effectively, and the technical effect of increasing the form of the rotating shaft is achieved.

The inner surface of the shaft sleeve is provided with a first thread, the surface area of the fastening component is provided with a second thread matched with the first thread, the fastening component is moved in the shaft sleeve through thread engagement between the shaft sleeve and the fastening component, when the fastening component is moved to be in a fixed state with the shaft core, the fastening component is in a locked state, and when the fastening component is moved to be in a state of relative movement with the shaft core, the fastening component is in an unlocked state.

Third, in the scheme in this application embodiment, electronic equipment passes through the pivot and connects electronic equipment body and support, when the electronic equipment body need pass through the support and support, set up fastening part into locking state, at this moment, even under the exogenic action, can not take place to rotate between body and the support yet, when needs are portable or hang electronic equipment, set up fastening part into non-locking state, be in relative activity state between body and the support, at this moment, the support can realize the function of flexible handle, it is thus clear that the scheme in this application embodiment passes through a plurality of modes of pivot, can realize the technological effect of supporting and portable electronic equipment body, user's experience degree has been increased.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic view of a rotating shaft structure provided in the first embodiment of the present application;

FIG. 2 is a schematic view of a fastening member in a locked state according to one embodiment of the present application;

FIG. 3 is a schematic view of a fastening member in an unlocked state according to a first embodiment of the present application;

FIG. 4 is a schematic view of a threaded engagement of a rotating shaft according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of an electronic device provided in the second embodiment of the present application;

fig. 6 is a schematic view of an electronic device provided in a second embodiment of the present application in a first mode;

fig. 7 is a schematic view of a rotation structure of an electronic device according to a second embodiment of the present application;

fig. 8 is a schematic view of an electronic device in a second mode according to a second embodiment of the present application;

fig. 9 is a schematic view illustrating an electronic device provided in the second embodiment of the present application rotating a bracket to the rear of a back panel.

Detailed Description

In order to solve the technical problems, the general idea of the embodiment of the present application is as follows:

a spindle, comprising: a shaft core; a fastening member; the shaft sleeve is sleeved on the shaft core and the fastening part; the fastening member has a locked state in which the shaft core is locked and an unlocked state in which the shaft core is unlocked, and when the fastening member is in the locked state, the sleeve is not rotatable relative to the shaft core by an external force, and when the fastening member is in the unlocked state, the sleeve is rotatable relative to the shaft core by the external force.

In the technical scheme, through set up fastening member in the pivot, when fastening member and axle core are in the lock-out state, be in relatively fixed state between each part of pivot, this moment under the exogenic action, can not produce relative motion between each part, when fastening member and axle core are in the non-lock-out state, when exogenic action, can rotate relatively between each part of pivot, it is thus clear that the scheme in the embodiment of this application has effectually solved the single technical problem of pivot mode among the electronic equipment that prior art exists, the technological effect of multimode pivot has been realized, and then the function of pivot has been increased.

In order to better understand the technical solutions, the technical solutions of the present invention are described in detail below with reference to the drawings and specific embodiments, and it should be understood that the specific features in the embodiments and examples of the present invention are detailed descriptions of the technical solutions of the present invention, and are not limitations of the technical solutions of the present invention, and the technical features in the embodiments and examples of the present invention may be combined with each other without conflict.

Example one

Fig. 1 is a schematic structural diagram of a rotating shaft according to an embodiment of the present disclosure. The pivot can be used for connecting two main parts, and two main parts can be panel computer and the support that supports the panel computer, also can be the lid and the body of notebook, also can be other two main parts that need connect, and the example has just not been in this place.

As shown in fig. 1, in the present embodiment, the rotating shaft includes a shaft core 10; a fastening member 20; a shaft sleeve 30, which is sleeved on the shaft core 10 and the fastening part 20; the fastening member 20 has a locked state in which the shaft core 10 is locked and an unlocked state in which the shaft core 10 is unlocked, and when the fastening member 20 is in the locked state, the sleeve 30 is not rotatable with respect to the shaft core 10 by an external force, and when the fastening member 20 is in the unlocked state, the sleeve 30 is rotatable with respect to the shaft core 10 by the external force.

Specifically, the shaft core 10 may be a cylinder, and the shaft sleeve 30 may be a cylinder including a cavity, the cavity being capable of accommodating the shaft core 10, and in order to enable the shaft core 10 to rotate in the cavity, the shaft core 10 may be configured as a cylinder having a smooth surface, so as to reduce the friction between the shaft core 10 and the cavity. The fastening member 20 may be a cylinder, and is located in the cavity of the shaft sleeve 30, when the fastening member 20 fixes the shaft core 10, i.e. the shaft core 10 cannot rotate relative to the shaft sleeve 30, the fastening member 20 is in the locked state, and when the fastening member 20 releases the fixed state of the shaft core 10, the shaft core 10 can rotate relative to the shaft sleeve 30, and at this time, the fastening member 20 is in the unlocked state.

Further, the shaft core 10 includes a first end 101 and a second end 102, the fastening member 20 includes a third end 201, the third end 201 is adjacent to the second end 102, the third end 201 has a first structure, and when the shaft core 10 is fixed with the fastening member 20 through the first structure, the fastening member 20 is in the locking state; when the shaft core 10 is released from the fixed state by the first structure, the fastening member 20 is in the unlocked state; wherein, when the fastening member 20 is in the locked state, the fastening member 20 is fixed relative to the shaft sleeve 30, so that the shaft sleeve 30 cannot rotate relative to the shaft core 10.

In particular implementations, the securing member 20 is disposed within the sleeve 30 alongside the core 10, and the securing member may secure the second end 102 via the first structure, thereby placing the core 10 in fixed relation to the sleeve 30. The first structure may be a groove, a snap, a magnet, or other structures, and those skilled in the art may set the first structure according to actual needs, and the present application is not particularly limited.

First embodiment

When the first structure is a recess, the recess can receive the first portion of the shaft core 10 including the second end, and the shape of the recess matches the shape of the first portion, wherein when the first portion is fully located in the recess and is engaged and fixed with the recess, the fastening member 20 is in the locked state, as shown in fig. 2, and when the first portion is separated from the recess, the fastening member 20 is in the unlocked state, as shown in fig. 3.

Specifically, the third end 201 of the fastening member 20 is formed with a groove for receiving the first portion of the shaft core 10 including the second end, the shape and size of the groove are completely matched with those of the first portion, when the first portion is completely located in the groove, a large torsion force is generated on a contact surface of the groove and the first portion, so that the groove and the first portion are relatively fixed, and meanwhile, since the fastening member 20 and the shaft sleeve 30 are also relatively fixed, the shaft core 10 and the shaft sleeve 30 are also in a fixed state, preferably, the surface material of the groove may be a wear-resistant material.

Further, in order to secure the groove to the first portion more securely, the second cross-sectional area of the second end 102 is smaller than the first cross-sectional area of the first end 101. If the shaft core is a cone with a cross-sectional area tending to decrease from the first end 101 to the second end 102, or the first end 101 of the shaft core is a uniform cylinder, and the second end 102 is a cylinder with a polygonal cross-sectional area, because a plurality of edges of the polygonal cylinder can be meshed with the grooves, the meshing force is increased on the basis of the torsion, so that the fastening part is firmer when the first part is fixed.

Second embodiment

When the first structure is a buckle, a slot is disposed on the second end 102, wherein when the buckle and the slot are in a clamping state, the fastening component 20 is in the locking state, and when the buckle and the slot are in a non-clamping state, the fastening component 20 is in the non-locking state.

Specifically, the third end 201 of the fastening component 20 is provided with a buckle, such as an annular buckle, and correspondingly, the second end 102 of the shaft core 10 is provided with a slot matched with the buckle, taking the annular buckle as an example, when the fastening component 20 is moved to fit the annular buckle on the slot, the fastening component 20 fixes the shaft core 10, and when the fastening component 20 is moved to remove the annular buckle from the slot, the fastening component 20 releases the fixed state of the shaft core 10.

Third embodiment

When the first structure of the fastening member 20 is a magnet, the second end 102 is provided with a magnet with fixed polarity, such as N-pole, and the effect of fixing or releasing the shaft core 10 can be achieved by changing the polarity of the magnet of the first structure. If the first structure is an electromagnet, the polarity of the magnet can be changed by controlling the current passing through the electromagnet, and when the current passes through the electromagnet in a first direction, the polarity of the electromagnet is S pole, at this time, due to opposite attraction, the first structure and the second end are fixed together through magnetic force, so that the shaft core 10 and the shaft sleeve 30 are in a relatively fixed state; when the current passing through the electromagnet is reversed, the polarity of the electromagnet is changed to be an S-shape, and at this time, the shaft core 10 is not restrained by the fastening member 20 any more due to the repulsion of the same poles, and can rotate relative to the shaft sleeve 30, or the power supply to the electromagnet is stopped, and at this time, the magnetism of the electromagnet disappears, and the shaft core 10 can also be released from the fixation of the first structure. Of course, the first structure may be a fixed-polarity magnet, and the second end 102 may be an electromagnet, which is not limited in this application.

In addition to the electromagnet, the common magnet may be used to achieve the above-mentioned effects, when the first structure is the common magnet, since one end of the common magnet is an N pole and the other end is an S pole, the polarity of the magnet may be switched by rotating the magnet, when the polarity of the magnet is switched to be opposite to the polarity of the magnet at the second end 102, the first structure and the first portion attract each other, the shaft core 10 is fixed by the magnetic force, and when the polarity of the magnet is switched to be the same as the polarity of the magnet at the second end 102, the first portion is separated from the first structure, and the shaft core 10 may rotate relative to the shaft sleeve 30.

The embodiments of the first structure include, but are not limited to, the three embodiments described above, and those skilled in the art can realize the fixing or releasing of the fixing of the shaft core according to the specific situation.

In order to realize the conversion of the shaft core 10 between the two states of being fixed relative to the shaft sleeve 30 and rotating relative to the shaft sleeve 30 through the first structure, the inner surface of the shaft sleeve 30 is provided with a first thread, and the surface area of the fastening part 20 is provided with a second thread matched with the first thread; wherein the tightening unit 20 is switched between the locked state and the unlocked state by the mutual engagement of the first thread and the second thread when the tightening unit 20 is rotated.

In a specific implementation process, a first thread is provided on a surface of the cavity of the shaft sleeve 30, which is in contact with the fastening member 20, and a surface area of the cavity in contact with the shaft core 10 is not provided with a thread, but is provided with a smoother surface, so that the shaft core 10 reduces friction when rotating relative to the shaft sleeve 30, as shown in fig. 4. The surface of the fastening member 20 is provided with a second thread having the same profile angle, diameter, pitch, etc. as the first thread to enable the first thread to be threadedly engaged with the second thread.

When the tightening member 20 is screwed into the sleeve 30 to move back and forth, the first structure approaches the second end of the core 10 as the tightening member 20 enters the sleeve 30, and when the first structure is a groove, the groove approaches the first portion as the tightening member 20 is screwed into the sleeve 30 by screwing until the first portion is completely received in the groove, and at this time, the second end 102 is tightly pressed against the groove, that is, the tightening member 20 is screwed to the bottom, and the core 10 is fixed by the groove.

Since the fastening member 20 and the shaft sleeve 30 are connected to each other by the screw, when the fastening member 20 is screwed to the bottom, the fastening member 20 and the shaft sleeve 30 are in a relatively fixed state, so that the shaft core 10 is fixed relative to the shaft sleeve 30.

When the tightening member 20 is screwed out of the sleeve 30 by the screw engagement, the groove is spaced apart from the first portion of the core 10 as the tightening member 20 moves, and the torsion between the groove and the first portion is released, so that the core 10 can be automatically rotated in the sleeve 30.

Further, the fastening member 20 comprises a fourth end, the fourth end is provided with a rotating structure 202, wherein when the rotating structure 202 is rotated in a first direction, the fastening member 20 can be driven to move to the locking state through the engagement of the first thread and the second thread; when the rotating structure 202 is rotated in a second direction opposite to the first direction, the fastening member 20 can be brought to move to the unlocked state by the engagement of the first thread and the second thread.

Specifically, the rotating structure 202 is provided to facilitate the user to operate more conveniently, the rotating structure 202 may be a linear groove, the user may put a key or other objects into the linear groove to rotate, so that the fastening component 20 moves through the threaded engagement with the shaft sleeve 30, the rotating structure 202 may also be a protrusion, the user may directly hold the protrusion with fingers to rotate the fastening component 20, and the person skilled in the art may set the rotating structure 202 according to actual needs, which is not specifically limited in this application.

In addition to the movement of the fastening member 20 in the shaft sleeve 30 by means of screw engagement, the movement of the fastening member 20 may also be realized by means of pressing, for example, a button is provided at the fourth end of the fastening member 20, when the button is pressed by a user, the fastening member 20 moves in the shaft sleeve 30 in a direction close to the shaft core 10, when the button is released, the first structure of the fastening member 20 fixes the first part, taking the first structure as a buckle as an example, when the user needs to fix the shaft core 10, the button of the fastening member 20 is pressed, at this time, the buckle moves in the direction of the slot, when the user presses the fastening member 20 to the bottom, the button is released, and the buckle is sleeved on the slot; when a user needs to rotate the shaft core 10 relative to the shaft sleeve 30, the button is pressed to the bottom, the buckle is separated from the clamping groove, the button is released, and the shaft core 10 can rotate. The skilled person can set the moving mode of the fastening part 20 according to the actual requirement, and the application is not limited.

Example two

As shown in fig. 5, an embodiment of the present application provides an electronic device, including: a first rotating shaft 210; a first body 220 connected to a core of the first rotating shaft 210; a second body 230; is connected to the shaft sleeve of the first rotating shaft 210. The structure and function of the first rotating shaft 210 are the same as those of the first rotating shaft, and are not described herein again.

The electronic device further includes a second shaft 240, the first body 220 is connected to the shaft core of the first shaft 210 and the shaft core of the second shaft 240, and the second body 230 is connected to the shaft sleeve of the first shaft 210 and the shaft sleeve of the second shaft 240.

In a specific implementation process, the first body 220 and the second body 230 may be a tablet computer and a bracket for supporting the tablet computer, or a cover and a body of a notebook computer, or two other main bodies that need to be connected.

Because the tablet computer in the prior art is not generally provided with a support or is designed to be portable, the tablet computer is not convenient to use or carry, even if the tablet computer with the support exists in the prior art, the support can only support the tablet computer within a certain range, namely, the angle between the support and the tablet computer is within a certain range, and a user still needs to hold a screen part when carrying the tablet computer. In this embodiment, since the rotating shaft described in the first embodiment is used to connect the bracket and the tablet computer, the technical effects of supporting and carrying the tablet computer can be achieved at the same time.

When the rotating shaft is used for connecting the tablet personal computer and the bracket, the number of the rotating shafts for connection can be selected according to actual needs, for example, one rotating shaft is used for connection or two rotating shafts are used for connection.

Specifically, the first body 220, i.e., the tablet pc, is coupled to the cores of the first and second rotating shafts 210 and 240, respectively, and the second body 230, i.e., the holder, is coupled to the bosses of the first and second rotating shafts 210 and 240, respectively. When the fastening components of the first rotating shaft 210 and the second rotating shaft 240 are in the unlocked state, the shaft core can rotate relative to the shaft sleeve, and because the angle between the shaft core and the shaft sleeve can be any, the tablet personal computer can rotate at any angle; when the fastening components of the first rotating shaft 210 and the second rotating shaft 240 are in the locked state, the shaft core is locked by the fastening components, at this time, the shaft core and the shaft sleeve are in a relatively fixed state, even under the action of external force, the angle formed by the shaft sleeve and the shaft core cannot be changed, that is, the position relationship between the tablet computer and the bracket is fixed. In the prior art, when the tablet personal computer is at a certain angle with the tablet personal computer, the current angle is often damaged due to the mistaken touch of the user, and the user needs to adjust the angle again.

Further, when the second body 230 is a support, a hole is formed on the second body 230, and the hole is used for carrying or hanging the electronic device.

In the embodiment of the present application, since the rotating shaft has a locked state and an unlocked state, the tablet personal computer using the rotating shaft to connect the stand correspondingly has two modes, a first mode corresponding to the locked state and a second mode corresponding to the unlocked state, wherein when the electronic device is in the first mode, a first angle between the stand and the first body 220 is an acute angle and the fastening member is in the locked state, the stand can support the first body 220 at the first angle; when the electronic device is in the second mode, the fastening member is in the unlocked state, and the electronic device may be hung or carried by hand via the stand.

Specifically, when the tablet computer is in the first mode, the hinge is in a locked state. As shown in fig. 6, when a user needs to use the bracket to support the tablet pc, the bracket can be adjusted to a state of 45 degrees with the tablet pc, and then the fastening part is rotated by the rotating structure 202 to lock the shaft core, so that the shaft core cannot rotate relative to the shaft sleeve, at this time, even if the user accidentally touches the tablet pc, the angle between the bracket and the tablet pc cannot be changed, and when the rotating structure 202 is specifically a linear groove, the schematic diagram of the rotating structure 202 is shown in fig. 7.

When the tablet computer is in the second mode, the rotating shaft is in an unlocked state. For example, when a user needs to carry the tablet personal computer, the fastening part can be screwed out of the shaft sleeve, so that the shaft core and the shaft sleeve can rotate relatively, and when the support is opened to form an angle of 180 degrees with the tablet personal computer, the support can play a role of a carrying handle, as shown in fig. 8. Because when portable mode, can rotate relatively between axle core and the axle sleeve for the support can the free activity between the panel computer, can be along with the rotation of action emergence response when the user is portable, makes the handle have elasticity, real realization the function of handbag.

Further, when the tablet needs to be put into a bag, the bracket can be rotated to the rear part of the back plate of the tablet computer, and the tablet computer can be put into the bag to be carried without being influenced, as shown in fig. 9.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A spindle, comprising:

a shaft core;

a fastening member;

the shaft sleeve is sleeved on the shaft core and the fastening part;

2. A hinge as defined in claim 1, wherein said core includes a first end and a second end, said fastening member includes a third end, said third end being adjacent said second end, said third end having a first configuration, said fastening member being in said locked state when said core is secured to said fastening member by said first configuration; when the shaft core is released from the fixed state by the first structure, the fastening member is in the unlocked state;

3. A shaft according to claim 2, wherein when the first formation is a recess, the recess is adapted to receive a first portion of the core including the second end and is shaped to conform to the shape of the first portion, and wherein the fastening member is in the locked condition when the first portion is fully seated in the recess and snap-secured thereto and in the unlocked condition when the first portion is disengaged from the recess.

4. A hinge as defined in claim 3, wherein the second cross-sectional area of the second end is less than the first cross-sectional area of the first end.

5. The hinge according to claim 2, wherein when the first structure is a latch, a slot is disposed on the second end, wherein when the latch is engaged with the slot, the fastening member is in the locked state, and when the latch is disengaged from the slot, the fastening member is in the unlocked state.

6. A shaft according to any one of claims 1 to 5, wherein the sleeve has a first thread on an inner surface thereof and the fastening member has a second thread on a surface region thereof, the second thread being complementary to the first thread; wherein the tightening member is transitioned between the locked state and the unlocked state by the interengagement of the first and second threads when the tightening member is rotated.

7. A hinge according to claim 6, wherein the fastening member includes a fourth end provided with a rotational formation, wherein the rotational formation, when rotated in a first direction, causes the fastening member to move to the locked condition by engagement of the first and second threads; when the rotating structure is rotated in a second direction opposite to the first direction, the fastening part can be driven to move to the unlocking state through the engagement of the first thread and the second thread.

8. An electronic device, comprising:

a first shaft as claimed in any one of claims 1 to 7;

the first body is connected to the shaft core of the first rotating shaft;

a second body; and the shaft sleeve is connected to the first rotating shaft.

9. The electronic device according to claim 8, further comprising a second hinge according to any one of claims 1 to 7, wherein the first body is connected to a shaft core of the first hinge and a shaft core of the second hinge, and the second body is connected to a shaft sleeve of the first hinge and a shaft sleeve of the second hinge.

10. The electronic device according to claim 8 or 9, wherein when the second body is a stand, the second body has a hole for holding or hanging the electronic device.

11. The electronic device of claim 10, wherein the electronic device has a first mode and a second mode, wherein when the electronic device is in the first mode, a first angle between the bracket and the first body is acute and the fastening member is in the locked state, the bracket being capable of supporting the first body at the first angle; when the electronic device is in the second mode, the fastening member is in the unlocked state, and the electronic device may be hung or carried by hand via the stand.