CN119472927A - Rotary hinge and electronic device - Google Patents

Abstract

The invention relates to the technical field of hinges, and provides a rotary hinge and electronic equipment, wherein the rotary hinge comprises a hinge shaft body, a rotary assembly and a driving assembly; the hinge shaft body is arranged in an extending mode along a first direction, one end of the hinge shaft body forms a connecting end, the rotating assembly is provided with a mounting part for connecting the connecting end along the first direction, the rotating assembly is provided with a rotation axis along a second direction, the driving assembly is in transmission connection with the rotating assembly and used for driving the rotating assembly to rotate around the second direction, the first direction is perpendicular to the second direction, the hinge shaft body is provided with a mounting frame for mounting equipment to be rotated, and the mounting frame can rotate around the first direction along with the hinge shaft body or rotate around the second direction along with the rotating assembly. The electronic equipment comprises the rotary hinge, the rotary hinge and the notebook computer can realize independent reciprocating rotation of equipment to be turned along two mutually perpendicular directions, and when the electronic equipment is applied to the notebook computer, the screen can be effectively rotated in a plane opposite to the plane of the notebook computer, and the beneficial effect of the screen camera on the face tracking technology is realized.

Description

Rotary hinge and electronic equipment

Technical Field

The disclosure relates to the technical field of hinges, in particular to a rotary hinge and electronic equipment.

Background

In recent years, notebook computers have been increasingly designed in various and multifunctional manners, for example, along with the application of face tracking technology, some notebook computer screens need to rotate in real time in a horizontal plane relative to a machine body in addition to normal turning and opening rotation relative to the machine body, so that cameras in the screens can track and collect face images at various angles.

The conventional hinge with single rotation function cannot meet the above requirement. Therefore, a new hinge with a rotating function is needed in the market to better solve the problem that the notebook computer screen can rotate in real time in the plane of the relative body in the prior art.

Disclosure of Invention

The embodiment of the disclosure provides a rotary hinge and electronic equipment, and aims to solve the problem that a hinge with a single rotation function in the prior art cannot meet the rotation of a screen in a plane opposite to a plane of a machine body.

The rotary hinge provided by the embodiment of the disclosure comprises a hinge shaft body, a rotary assembly and a driving assembly;

The hinge shaft body extends along a first direction, and one end of the hinge shaft body forms a connecting end;

the rotating assembly is provided with a mounting part for connecting the connecting ends along the first direction, and the rotating assembly is provided with a rotation axis along the second direction;

The driving component is in transmission connection with the rotating component and is used for driving the rotating component to rotate around the second direction;

wherein the first direction and the second direction are perpendicular to each other;

the hinge shaft body is provided with a mounting frame for mounting equipment to be rotated;

the mounting frame can rotate along with the hinge shaft body around the first direction or rotate along with the rotating assembly around the second direction.

In one embodiment, the rotating assembly comprises a rotating frame, a fixed frame and a transmission gear set;

the rotating frame is provided with a rotating shaft extending along the second direction;

the fixing frame is fixedly arranged at the station to be assembled and provided with an inserting hole for inserting the rotating shaft;

the transmission gear set is arranged on the periphery of the shaft body of the rotating shaft in a sleeved mode and is in transmission connection with the driving assembly;

the driving assembly can drive the rotating frame to rotate reciprocally around the second direction through the transmission gear set.

In one embodiment, the transmission gear set comprises a transmission helical gear and an encoder synchronous wheel which are synchronously sleeved;

The transmission bevel gear is correspondingly meshed with the driving assembly;

The rotary assembly is also provided with an encoder gear for detecting the rotation angle of the rotary frame;

The encoder gear is correspondingly meshed with the encoder synchronous wheel.

In an embodiment, the rotating assembly further comprises a clamping structural member arranged above the transmission bevel gear;

The clamping structural member is provided with a first limiting clamping point and a second limiting clamping point along the diameter direction of the clamping structural member;

the rotating frame is provided with a trigger part facing the clamping structural member;

when the rotating frame is positioned at the initial position and the final position of the rotating stroke, the triggering part is correspondingly clamped by the first limiting clamping point and the second limiting clamping point in a limiting manner respectively.

In one embodiment, the rotating assembly further comprises a torque plate;

The torsion piece is sleeved at one end of the rotating shaft far away from the fixing frame and is limited and installed on the rotating shaft by the torsion locking piece;

the torsion plate can store or release torsion elastic force when the rotating shaft rotates.

In one embodiment, the drive assembly includes a drive motor, a gear box, and a worm gear;

the output shaft end of the driving motor is connected with the gear box;

the output shaft end of the gear box is connected with the worm gear.

In one embodiment, the driving motor and the gear box are correspondingly connected in a transmission manner to form two groups;

and the two groups of driving motors and the gear box are symmetrically arranged at two ends of the worm gear respectively.

In one embodiment, the rotating assembly further comprises a gear support for supporting and protecting the drive gear set;

the gear support is arranged at one end of the rotating shaft, which is far away from the fixing frame, and is fixedly connected with the fixing frame through a connecting screw.

In one embodiment, the mounting portion is symmetrically disposed in the first direction with respect to a center interval of the rotating assembly;

each mounting part is correspondingly connected with one hinge shaft body.

In addition, the embodiment of the disclosure also provides an electronic device, which comprises a device body, a display screen and the rotary hinge;

the display screen is movably connected with the equipment body through the rotary hinge.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

The hinge shaft body can drive the piece to be mounted to rotate around the first direction, the rotating assembly is provided with a rotation axis along the second direction, the driving assembly is in transmission connection with the rotating assembly and can drive the rotating assembly to rotate around the second direction, and therefore when the rotating assembly is driven to rotate around the second direction, the hinge shaft body and the piece to be mounted can rotate around the second direction together, and relative rotation of the piece to be mounted in a horizontal plane is achieved.

The rotary hinge not only can realize the reciprocating rotation of the equipment to be rotated along with the hinge shaft body around the first direction, but also can realize the reciprocating rotation of the equipment to be rotated along with the rotating assembly around the second direction, so that the independent reciprocating rotation of the equipment to be rotated along two mutually perpendicular directions can be realized.

In addition, the electronic device provided in the embodiment of the present disclosure includes the above-mentioned rotary hinge, which can achieve the same beneficial effects as the above-mentioned rotary hinge, and will not be described in detail herein.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings, in which:

in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

FIG. 1 illustrates a perspective view of a swivel hinge provided by an embodiment of the present disclosure;

FIG. 2 illustrates a perspective view (without a mount) of a swivel hinge provided by an embodiment of the disclosure;

FIG. 3 illustrates a perspective semi-cutaway view of a swivel hinge provided by an embodiment of the disclosure;

FIG. 4 illustrates a vertical semi-sectional view of a swivel hinge provided by an embodiment of the disclosure;

FIG. 5 illustrates a bottom view perspective of a swivel hinge provided by an embodiment of the disclosure;

fig. 6 shows a perspective view of an electronic device provided by an embodiment of the present disclosure.

The reference numerals in the figure indicate 1, a hinge shaft body, 11, a mounting rack, 2, a rotating assembly, 21, a rotating rack, 211, a mounting part, 212, a rotating shaft, 22, a fixing rack, 23, a transmission gear set, 231, a transmission bevel gear, 232, an encoder synchronous wheel, 233, a gear bearing piece, 24, an encoder gear, 25, a clamping structural piece, 26, a torsion plate, 261, a torsion locking piece, 3, a driving assembly, 31, a driving motor, 32, a gear gearbox, 33, a worm gear, 4, a device body, 5, a display screen, X, a first direction, Z and a second direction.

Detailed Description

In order to make the objects, features and advantages of the present disclosure more comprehensible, the technical solutions in the embodiments of the present disclosure will be clearly described in conjunction with the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person skilled in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the embodiment of the present disclosure provides a rotary hinge, which includes a hinge body 1, a rotary assembly 2 and a driving assembly 3, wherein the hinge body 1 is extended along a first direction X, and one end forms a connection end;

Wherein the first direction X and the second direction Z are mutually perpendicular, the hinge shaft body 1 is provided with a mounting frame 11 for mounting equipment to be rotated, and the mounting frame 11 can rotate along with the hinge shaft body 1 around the first direction X or rotate along with the rotating component 2 around the second direction Z.

The rotary hinge can be applied to a screen hinge of a notebook computer, and the use process is described by taking this as an example.

When the rotary hinge is specifically used, firstly, the hinge shaft body 1 is correspondingly connected with the mounting part 211 of the rotary component 2, then, the screen to be mounted is fixed on the mounting frame 11 in the hinge shaft body 1, so that the screen can rotate along with the hinge shaft body 1 around the first direction X to realize the normal opening and closing functions of the screen, and because the rotary component 2 is provided with a rotation axis along the second direction Z, the drive component 3 is in transmission connection with the rotary component 2, the rotary component 2 can be driven to rotate around the second direction Z, the fixing frame 22 in the rotary component 2 can be correspondingly arranged in the body of the notebook computer, and when the drive component 3 drives the rotary component 2 to rotate around the second direction Z, the hinge shaft body 1 and the screen can rotate together around the second direction Z to realize the rotation of the screen relative to the body of the computer in the horizontal plane, so that the camera in the notebook computer can swing left and right, and the tracking technology of the camera to the face can be realized.

Of course, the rotating assembly 2 can be driven to rotate around the second direction Z by the driving assembly 3 in an automatic electric control mode, and the rotating assembly 2 can be manually rotated around the second direction Z by a user in a manual left-right screen pushing mode, so that the diversity of reciprocating rotation of the rotating assembly 2 around the second direction Z is fully ensured.

In summary, the rotary hinge provided in the embodiment of the present disclosure not only can realize the reciprocating rotation of the device to be turned around the first direction X along with the hinge shaft body 1, but also can realize the reciprocating rotation of the device to be turned around the second direction Z along with the rotating component 2, so that the independent reciprocating rotation of the device to be turned along two mutually perpendicular directions can be realized.

In one embodiment, the rotating assembly 2 comprises a rotating frame 21, a fixing frame 22 and a transmission gear set 23, wherein the rotating frame 21 is provided with a rotating shaft 212 extending along a second direction Z, the fixing frame 22 is fixedly installed on a station to be assembled and provided with an inserting hole for inserting the rotating shaft 212, the transmission gear set 23 is installed on the periphery of a shaft body of the rotating shaft 212 in a sleeved mode and is in transmission connection with the driving assembly 3, and the driving assembly 3 can drive the rotating frame 21 to rotate reciprocally around the second direction Z through the transmission gear set 23.

Specifically, as described in further detail with reference to fig. 1 and 2, the rotating assembly 2 is specifically configured to include a rotating frame 21, a fixing frame 22 and a transmission gear set 23, where the rotating frame 21 has a rotating shaft 212 extending along the second direction Z, and the transmission gear set 23 is installed and sleeved on the shaft body peripheral surface of the rotating shaft 212 and is in transmission connection with the driving assembly 3, so that when the driving assembly 3 correspondingly drives the transmission gear set 23 to rotate, the rotating frame 21 can be correspondingly driven to reciprocally rotate around the rotating shaft 212.

And, mount 22 fixed mounting is to be equipped with the station in waiting, and has offered the cartridge hole that supplies rotation axis 212 cartridge, realizes this rotation component 2's spacing installation on the one hand like this, and on the other hand still can be through the cartridge Kong Duixuan the cartridge assembly of rotation axis 212 closes, makes rotation axis 212 only can be in the cartridge hole around the reciprocal rotation of second direction Z, has realized that the revolving stage 21 is spacing, location high-efficient.

The specific setting mode of the rotating assembly 2 has the beneficial effects of simple structure and capability of stably driving the hinge shaft body 1 to rotate reciprocally around the second direction Z.

In one embodiment, the transmission gear set 23 comprises a transmission bevel gear 231 and an encoder synchronizing wheel 232 which are synchronously sleeved, the transmission bevel gear 231 is correspondingly meshed with the driving assembly 3, an encoder gear 24 for detecting the rotation angle of the rotating frame 21 is further arranged in the rotating assembly 2, and the encoder gear 24 is correspondingly meshed with the encoder synchronizing wheel 232.

Specifically, as described in further detail with reference to fig. 2, the driving gear set 23 includes a driving bevel gear 231 and an encoder synchronizing wheel 232 which are synchronously sleeved, the driving bevel gear 231 is correspondingly engaged with the driving assembly 3, the encoder synchronizing wheel 232 is correspondingly engaged with the encoder gear 24 for detecting the rotation angle of the rotating frame 21, so that when the driving assembly 3 drives the driving bevel gear 231 to rotate by a certain angle, the encoder synchronizing wheel 232 synchronously rotates, the rotation angle is accurately detected by the encoder gear 24, the excessive rotation angle of the driving gear set 23 is avoided and exceeds the preset range of the rotating assembly 2, and the encoder gear 24 can be electrically connected with the driving assembly 3 in a feedback manner for feedback controlling the working state of the driving assembly 3.

In addition, the absolute value encoder in the encoder gear 24 can determine the horizontal angle of the rotating frame 21 in real time, and ensure that the rotating frame 21 can be within a preset angle range at the moment.

The specific setting mode of the transmission gear set 23 and the encoder gear 24 has the advantages of stable transmission, capability of accurately detecting the real-time angle of the rotating frame 21 and ensuring that the rotating frame is in a preset angle range.

In an embodiment, the rotating assembly 2 further includes a clamping structure member 25 disposed above the driving bevel gear 231, the clamping structure member 25 is respectively provided with a first limiting clamping point and a second limiting clamping point along a diameter direction of the clamping structure member 25, the rotating frame 21 is provided with a trigger portion facing the clamping structure member 25, and when the rotating frame 21 is in a starting position and a final position of a rotating stroke, the trigger portion is respectively and correspondingly limited and clamped by the first limiting clamping point and the second limiting clamping point.

Specifically, as described in further detail with reference to fig. 2, the rotating assembly 2 further includes a clamping structure member 25 disposed above the driving bevel gear 231, the clamping structure member 25 has a first limiting clamping point and a second limiting clamping point along a diameter direction thereof, and the rotating frame 21 is provided with a triggering portion facing the clamping structure member 25. Therefore, when the rotating frame 21 is at the initial and final positions of the rotating stroke, the triggering part can be correspondingly clamped by the first limiting clamping point and the second limiting clamping point, so that the rotating frame 21 can be clamped by the limiting parts at the initial and final positions of the rotating stroke, and the rotating frame 21 is prevented from exceeding the initial and final positions in the rotating process.

The specific setting mode of the clamping structural member 25 has the beneficial effects of simple structure and capability of limiting and clamping the initial and final positions of the rotating frame 21.

In an embodiment, the rotating assembly 2 further includes a torsion plate 26, wherein the torsion plate 26 is sleeved at one end of the rotating shaft 212 far away from the fixing frame 22 and is mounted on the rotating shaft 212 in a limited manner by the torsion locking piece 261, and the torsion plate 26 can store or release torsion elastic force when the rotating shaft 212 rotates.

Specifically, as described in further detail with reference to fig. 3 and 4, a torsion plate 26 is further disposed on the rotating assembly 2, and the torsion plate 26 is sleeved on an end of the rotating shaft 212 far away from the fixing frame 22, and is limited and mounted on the rotating shaft 212 by a torsion locking member 261, so that the torsion plate 26 can store or release torsion elastic force when the rotating shaft 212 rotates.

When the rotary frame 21 is driven to rotate around the rotary shaft 212 in the electric mode, the transmission gear set 23 is driven to rotate around the rotary shaft 212 by the driving component 3, and the torque force of the torque plate 26 is larger than the load resistance of the rotary component 2, so that the rotary frame 21 is driven to rotate around the rotary shaft 212 by the motor in the driving component 3.

The torque plate 26 is specifically provided in such a manner that the rotary member 2 can be randomly switched between manual driving and electric driving without mutual influence.

In one embodiment, the driving assembly 3 comprises a driving motor 31, a gear box 32 and a worm gear 33, wherein the output shaft end of the driving motor 31 is connected with the gear box 32, and the output shaft end of the gear box 32 is connected with the worm gear 33.

Specifically, as further detailed in connection with fig. 2, the driving assembly 3 includes a driving motor 31, a gear box 32 and a worm gear 33, and the output shaft end of the driving motor 31 is connected with the gear box 32, so that the output torque of the driving motor 31 can be correspondingly adjusted through the gear box 32, and the output shaft end of the gear box 32 is connected with the worm gear 33, so that the worm gear 33 can be correspondingly meshed with the transmission bevel gear 231 in the transmission gear set 23, and when the driving motor 31 is electrified to rotate, the driving force can be stably transmitted to the transmission gear set 23 of the rotating assembly 2, and the function of driving the rotating frame 21 to rotate around the rotating shaft 212 can be stably realized.

In one embodiment, the driving motor 31 and the gear box 32 are correspondingly connected and arranged in two groups, and the two groups of driving motors 31 and the gear boxes 32 are respectively and symmetrically arranged at two ends of the worm gear 33.

Specifically, as described in further detail with reference to fig. 2, the driving motor 31 and the gear box 32 are correspondingly connected and arranged in two groups, and the two groups of driving motors 31 and the gear box 32 are respectively symmetrically arranged at two ends of the worm gear 33, so that one worm gear 33 can be simultaneously and synchronously driven by the two groups of driving motors 31, and the worm gear 33 can be fully ensured to generate enough stable and enough torsion force to act on the transmission bevel gear 231.

In an embodiment, the rotating assembly 2 further includes a gear support 233 for supporting and protecting the gear set 23, and the gear support 233 is disposed at an end of the rotating shaft 212 away from the fixing frame 22 and is fixedly connected to the fixing frame 22 by a connection screw.

Specifically, as further detailed in connection with fig. 5, a gear support 233 for supporting and protecting the driving gear set 23 is further disposed in the rotating assembly 2, and the gear support 233 is disposed at one end of the rotating shaft 212 far away from the fixing frame 22 and is fixedly connected with the fixing frame 22 through a connecting screw, so that the driving gear set 23 can be supported and limited along the axial direction of the rotating shaft 212 through the gear support 233, the problems of engagement dislocation and driving failure of the driving gear set 23 after long-term use are avoided, and the gear support 233 can also avoid the entry of external sundries into the driving gear set 23, and the problem of accidental locking of the driving gear set 23 is avoided.

In one embodiment, two mounting portions 211 are symmetrically arranged along the first direction X at intervals about the center of the rotating assembly 2, and each mounting portion 211 is respectively and correspondingly connected to one hinge shaft body 1.

Specifically, as described in further detail with reference to fig. 2, the mounting portions 211 are specifically configured to be symmetrically disposed in two directions along the first direction X about the center interval of the rotating assembly 2, and each mounting portion 211 is correspondingly connected to and disposed on one hinge body 1, so that the mounting stability of the hinge body 1 on the equipment to be rotated and the stress balance of the equipment to be rotated during rotation of the equipment around the second direction Z can be further improved.

In addition, the embodiment of the disclosure also provides electronic equipment, which comprises the equipment body 4, the display screen 5 and the rotary hinge, wherein the display screen 5 is movably connected with the equipment body 4 through the rotary hinge.

Specifically, as described in further detail with reference to fig. 6, the electronic device may be, but not limited to, a notebook computer, and the display screen 5 thereof is movably connected with the device body 4 through the above-mentioned rotary hinge, so that the electronic device may realize the above-mentioned beneficial effects of the above-mentioned rotary hinge, and will not be described herein in detail.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is merely a specific embodiment of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it should be covered in the protection scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (10)

1. A rotary hinge, comprising:

the hinge shaft body (1) is arranged in an extending mode along a first direction (X), and one end of the hinge shaft body forms a connecting end;

a rotating assembly (2) having a mounting portion (211) along the first direction (X) to which the connection end is connected, the rotating assembly (2) having a rotation axis along a second direction (Z);

The driving assembly (3) is in transmission connection with the rotating assembly (2) and is used for driving the rotating assembly (2) to rotate around the second direction (Z);

Wherein the first direction (X) and the second direction (Z) are perpendicular to each other;

The hinge shaft body (1) is provided with a mounting frame (11) for mounting equipment to be rotated;

The mounting frame (11) can rotate along with the hinge shaft body (1) around the first direction (X) or rotate along with the rotating assembly (2) around the second direction (Z).

2. Swivel hinge according to claim 1, characterized in that the swivel assembly (2) comprises:

A rotating frame (21) having a rotation axis (212) extending in the second direction (Z);

the fixing frame (22) is fixedly arranged at the station to be assembled and provided with an inserting hole for inserting the rotating shaft (212);

the transmission gear set (23) is arranged on the periphery of the shaft body of the rotating shaft (212) in a sleeved mode and is in transmission connection with the driving assembly (3);

wherein, the driving component (3) can drive the rotating frame (21) to rotate reciprocally around the second direction (Z) through the transmission gear set (23).

3. The rotary hinge according to claim 2, characterized in that the transmission gear set (23) comprises a transmission bevel gear (231) and an encoder synchronizing wheel (232) synchronously nested;

the transmission bevel gear (231) is correspondingly meshed with the driving assembly (3);

the rotary assembly (2) is also provided with an encoder gear (24) for detecting the rotation angle of the rotary frame (21);

The encoder gear (24) is correspondingly meshed with the encoder synchronous wheel (232).

4. A rotary hinge according to claim 3, characterized in that the rotary assembly (2) further comprises a detent structure (25) arranged above the transmission bevel gear (231);

The clamping structural member (25) is provided with a first limiting clamping point and a second limiting clamping point along the diameter direction of the clamping structural member;

The rotating frame (21) is provided with a triggering part facing the clamping structural part (25);

when the rotating frame (21) is positioned at the initial position and the final position of the rotating stroke, the triggering part is correspondingly clamped by the first limiting clamping point and the second limiting clamping point in a limiting manner.

5. The rotary hinge according to claim 2, characterized in that the rotary assembly (2) further comprises a torsion plate (26);

The torsion piece (26) is sleeved at one end, far away from the fixed frame (22), of the rotating shaft (212) and is limited and installed on the rotating shaft (212) by the torsion locking piece (261);

the torsion plate (26) is capable of storing or releasing torsion spring force when the rotation shaft (212) rotates.

6. The rotary hinge according to claim 2, characterized in that the drive assembly (3) comprises a drive motor (31), a gear box (32) and a worm gear (33);

The output shaft end of the driving motor (31) is connected with the gear box (32);

the output shaft end of the gear box (32) is connected with the worm gear (33).

7. The rotary hinge according to claim 6, characterized in that the drive motor (31) and the gear box (32) are arranged in two groups in correspondence of the transmission connection;

And the two groups of driving motors (31) and the gear boxes (32) are symmetrically arranged at two ends of the worm gear (33) respectively.

8. The rotary hinge according to claim 2, characterized in that the rotary assembly (2) further comprises a gear support (233) for supporting the drive gear set (23);

The gear support (233) is arranged at one end, far away from the fixing frame (22), of the rotating shaft (212), and is fixedly connected with the fixing frame (22) through a connecting screw.

9. The rotary hinge according to any one of claims 1 to 8, characterized in that the mounting portion (211) is symmetrically arranged two at intervals along the first direction (X) with respect to the center of the rotary assembly (2);

each mounting part (211) is correspondingly connected with one hinge shaft body (1).

10. An electronic device characterized by comprising a device body (4), a display screen (5) and the rotary hinge according to any one of claims 1 to 9;

the display screen (5) is movably connected with the equipment body (4) through the rotary hinge.