Self-locking rotating shaft device and electronic equipment support

Abstract

The utility model discloses a self-locking rotating shaft device, which realizes a self-locking function with simple structure and convenience in assembly by arranging a non-closed self-locking channel on an edge rolling bracket and respectively arranging locking structures which are matched with each other on the inner wall of the channel and the peripheral surface of a rotating shaft, and overcomes the defect that the traditional friction type positioning structure is easy to wear. And meanwhile, a more reliable positioning effect is provided through clamping type locking, the service life of the support is prolonged, the stability of the support is improved, and good practical value is achieved. The self-locking rotating shaft device and the electronic equipment support comprising the self-locking rotating shaft device can be reliably locked at the preset angle, and the angle adjusting requirements of electronic equipment in different use scenes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, in particular to a self-locking rotating shaft device and an electronic equipment bracket. Background Art

[0002] Electronic device stands are widely used to support and position various electronic devices, such as monitors and tablets. Existing electronic device stands typically utilize single-axis or dual-axis structures for angle adjustment, but these systems present several challenges: First, traditional friction-type positioning mechanisms are prone to wear, resulting in inaccurate positioning and unstable support. Second, existing self-locking structures are often complex and require numerous parts, increasing manufacturing costs and reducing reliability. Third, dual-axis stands lack an effective synchronization mechanism, leading to asynchronous adjustment at both ends, impacting user experience. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a self-locking rotating shaft device and an electronic equipment bracket which have a simple structure, reliable positioning, and are easy to use.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A self-locking rotating shaft device, comprising:

[0006] a first rotating shaft, a second rotating shaft, and a rolling bracket;

[0007] The rolling bracket is provided with a first self-locking channel and a second self-locking channel, the first self-locking channel is used to cooperate with the first rotating shaft, and the second self-locking channel is used to cooperate with the second rotating shaft;

[0008] The first self-locking channel and the second self-locking channel are both non-closed structures, and the inner walls of the first self-locking channel and the second self-locking channel are both provided with a first locking structure;

[0009] The outer circumferences of the first rotating shaft and the second rotating shaft are both provided with a second locking structure adapted to the first locking structure;

[0010] The first locking structure and the second locking structure are engaged with each other to achieve self-locking fixation of the first rotating shaft and the second rotating shaft.

[0011] Furthermore, the first locking structure includes:

[0012] at least one first plane spaced apart along the circumference of the first self-locking channel and at least one second plane spaced apart along the circumference of the second self-locking channel;

[0013] Wherein, the first plane and the second plane are both arranged on the inner wall surface of the corresponding self-locking channel, and the number of the first plane and the second plane is equal;

[0014] The second locking structure includes:

[0015] at least one third plane provided on the outer circumference of the first rotating shaft and at least one fourth plane provided on the outer circumference of the second rotating shaft;

[0016] The number of the third planes is equal to the number of the first planes, and the number of the fourth planes is equal to the number of the second planes;

[0017] The third plane abuts and cooperates with the first plane, and the fourth plane abuts and cooperates with the second plane, so as to achieve circumferential positioning of the first rotating shaft and the second rotating shaft in the rolling bracket.

[0018] Furthermore, the first planes are two first planes that are parallel and oppositely arranged along the axial direction of the first self-locking channel;

[0019] The second planes are two second planes arranged parallel to and opposite to each other along the axial direction of the second self-locking channel;

[0020] The third planes are two third planes arranged parallel to and opposite to each other along the axial direction of the first rotating shaft, and the two third planes correspond to the two first planes respectively;

[0021] The fourth planes are two fourth planes arranged parallel to and opposite to each other along the axial direction of the second rotation axis, and the two fourth planes correspond to the two second planes respectively;

[0022] The oppositely arranged planes are parallel to each other, and the corresponding matching planes are parallel to each other and abut against each other.

[0023] Furthermore, a gear assembly is provided on one side of the rolling bracket;

[0024] The first rotating shaft and the second rotating shaft are transmission-connected via the gear assembly;

[0025] The gear assembly comprises:

[0026] a first gear fixedly mounted on the first rotating shaft, a second gear fixedly mounted on the second rotating shaft, and a plurality of transmission gears disposed between the first gear and the second gear;

[0027] Wherein, the number of the transmission gears is an even number, so that the first rotating shaft and the second rotating shaft rotate synchronously.

[0028] Furthermore, the first gear, the second gear and the transmission gear are all inclined gears;

[0029] The tooth surfaces of the first gear and the second gear are inclined in opposite directions;

[0030] The inclination direction of the tooth surface of the transmission gear is opposite to the inclination direction of the tooth surface of the adjacent gear;

[0031] The meshing surfaces of adjacent gears extend along the axial direction of the gears to form an inclined meshing line, so as to ensure smooth transmission of the first rotating shaft and the second rotating shaft.

[0032] Furthermore, the tooth surface inclination angles of the first gear, the second gear and the transmission gear are all 20-30°;

[0033] The tooth surface inclination angle is the angle between the tooth surface and the axial plane of the gear.

[0034] Furthermore, a fixing assembly is included, and the fixing assembly includes:

[0035] a first connecting plate, a second connecting plate, and a third connecting plate;

[0036] The first connecting plate and the second connecting plate are respectively provided at both ends of the gear assembly;

[0037] The first connecting plate and the second connecting plate are both provided with mounting holes for mounting and fixing the first rotating shaft, the second rotating shaft and the rotating shaft of the transmission gear;

[0038] The rolling bracket is located on a side of the second connecting plate away from the gear assembly;

[0039] The third connecting plate is arranged parallel to the second connecting plate, and the curling bracket is located between the second connecting plate and the third connecting plate;

[0040] Among them, the second connecting plate and the third connecting plate are both provided with through holes corresponding to the first self-locking channel and the second self-locking channel, and the ends of the first rotating shaft and the second rotating shaft pass through the second connecting plate and the rolling bracket in sequence and then cooperate with the third connecting plate.

[0041] Furthermore, at least one end of the first rotating shaft and the second rotating shaft is provided with a ridge structure for increasing friction;

[0042] The ridge structure comprises:

[0043] a plurality of ridges evenly distributed along the circumference of the first rotating shaft and the second rotating shaft;

[0044] Each of the ribs extends along the radial direction of the rotating shaft to form a protrusion, and is also extended along the circumferential direction of the rotating shaft.

[0045] Furthermore, the cross section of the ridge is triangular, and the radial protrusion height of the ridge is 0.5-2 mm.

[0046] An electronic equipment bracket comprises the above-mentioned self-locking rotating shaft device.

[0047] The beneficial effects of the utility model are:

[0048] The self-locking rotating shaft device of the utility model realizes a self-locking function with simple structure and easy assembly by arranging a non-closed self-locking channel on the rolling bracket and arranging mutually cooperating locking structures on the inner wall of the channel and the outer peripheral surface of the rotating shaft respectively, overcoming the shortcomings of the traditional friction positioning structure that is easy to wear, and at the same time providing a more reliable positioning effect through the snap-on locking, thereby improving the service life and stability of the bracket and having good practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0050] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0051] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0052] Figure 3 It is a partial structural diagram of the utility model;

[0053] Figure 4 It is a schematic diagram of the split structure of the utility model.

[0054] in,

[0055] 10. First rotating shaft;

[0056] 20. Second rotating shaft;

[0057] 30. Rolling bracket; 31. First self-locking channel; 32. Second self-locking channel;

[0058] 40. First locking structure; 41. First plane; 42. Second plane;

[0059] 50. Second locking structure; 51. Third plane; 52. Fourth plane;

[0060] 60. Gear assembly; 61. First gear; 62. Second gear; 63. Transmission gear;

[0061] 70. Fixing assembly; 71. First connecting plate; 72. Second connecting plate; 73. Third connecting plate;

[0062] 80. ridge structure;

[0063] 90. Shell. DETAILED DESCRIPTION

[0064] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technical personnel in this field without creative work are within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the creation of the present invention can be combined interactively without conflicting with each other.

[0065] Reference Figure 1-4 A self-locking rotating shaft device includes a first rotating shaft 10, a second rotating shaft 20, and a rolling bracket 30. The rolling bracket 30 is provided with a first self-locking channel 31 and a second self-locking channel 32. The first self-locking channel 31 is used to cooperate with the first rotating shaft 10, and the second self-locking channel 32 is used to cooperate with the second rotating shaft 20. The first self-locking channel 31 and the second self-locking channel 32 are both non-closed structures, and the inner walls of the first self-locking channel 31 and the second self-locking channel 32 are provided with a first locking structure 40. The outer circumferences of the first rotating shaft 10 and the second rotating shaft 20 are both provided with a second locking structure 50 that is compatible with the first locking structure 40. The first locking structure 40 and the second locking structure 50 engage with each other to achieve self-locking fixation of the first rotating shaft 10 and the second rotating shaft 20. It can be understood that the use of the non-closed self-locking channel allows the rotating shaft to be radially inserted, facilitating installation. In addition, the self-locking function is achieved through the engagement of the first locking structure 40 and the second locking structure 50. The non-closed self-locking channel will generate axial pressure on the rotating shaft. When in engagement, the pressure will be converted into interaction force between the engagement surfaces, thereby enhancing the self-locking effect.

[0066] It should be noted that since the self-locking channel is a non-closed structure, the channel will generate radial extrusion pressure on the shaft. This extrusion pressure will form friction on the shaft surface, and the friction will generate an axial component, which will subject the shaft to axial pressure. Therefore, the fixation of the shaft in this state is not stable. When the locking structure is aligned and engaged: the original axial pressure is converted into positive pressure between the locking structures. The positive pressure acts on the engaging surfaces, forming a greater friction force. The friction force and the engaging structure work together to provide a stable self-locking effect. When the shaft is subjected to external force, the external force increases the positive pressure between the engaging surfaces. The increased positive pressure leads to increased friction, forming a positive feedback of force, and the self-locking effect is stronger.

[0067] In some embodiments, reference Figure 2 、 3 , the first locking structure 40 includes: at least one first plane 41 arranged at circumferential intervals along the first self-locking channel 31 and at least one second plane 42 arranged at circumferential intervals along the second self-locking channel 32; wherein, the first plane 41 and the second plane 42 are both arranged on the inner wall surface of the corresponding self-locking channel, and the number of the first planes 41 and the second planes 42 are equal; the second locking structure 50 includes: at least one third plane 51 arranged on the outer circumferential surface of the first rotating shaft 10 and at least one fourth plane 52 arranged on the outer circumferential surface of the second rotating shaft 20; wherein, the number of the third planes 51 is equal to the number of the first planes 41, and the number of the fourth planes 52 is equal to the number of the second planes 42; the third plane 51 abuts and cooperates with the first plane 41, and the fourth plane 52 abuts and cooperates with the second plane 42, so as to realize the circumferential positioning of the first rotating shaft 10 and the second rotating shaft 20 in the rolling bracket 30. It can be understood that the first locking structure 40 is a plane, and similarly, the second locking structure 50 is also a plane, that is, self-locking positioning is achieved through abutment between planes. This cooperation method increases the contact area, provides greater friction and a more stable positioning effect, and at the same time, the processing accuracy of the plane structure is easy to ensure, which is conducive to reducing manufacturing costs and facilitating mass production.

[0068] Furthermore, the first planes 41 are two first planes 41 that are axially parallel and oppositely arranged along the first self-locking channel 31; the second planes 42 are two second planes 42 that are axially parallel and oppositely arranged along the second self-locking channel 32;

[0069] The third planes 51 are two third planes 51 that are axially parallel and oppositely arranged along the first rotating shaft 10, and the two third planes 51 correspond to the two first planes 41 respectively; the fourth planes 52 are two fourth planes 52 that are axially parallel and oppositely arranged along the second rotating shaft 20, and the two fourth planes 52 correspond to the two second planes 42 respectively; wherein, the oppositely arranged planes are parallel to each other, and the corresponding mating planes are parallel to each other and abut against each other. It can be understood that at this time, it is equivalent to the first rotating shaft 10 and the first self-locking channel 31 having two self-locking points, namely 0° and 180°, and the second rotating shaft 20 and the second self-locking channel 32 also have the same self-locking point. This symmetrical two-point self-locking structure can make the rotating shaft bear force more evenly, providing better positioning effect and self-locking stability.

[0070] Furthermore, when more self-locking points are required, multiple sets of first planes 41 and second planes 42 need to be added, and at least one set of third planes 51 and fourth planes 52 located on the rotating shaft is required. In other words, multiple sets of first planes 41 and second planes 42 can be set in the self-locking channel, for example, one set of planes at 0°, 120°, and 240° (forming three-point self-locking), or one set of planes at 0°, 90°, 180°, and 270° (forming four-point self-locking), while only one set of opposing third planes 51 and fourth planes 52 needs to be set on the rotating shaft to achieve self-locking cooperation with any set of planes in the channel. This design provides multiple self-locking position options without increasing the processing difficulty of the rotating shaft.

[0071] In some embodiments, reference Figure 4 A gear assembly 60 is provided on one side of the rolling bracket 30; the first rotating shaft 10 and the second rotating shaft 20 are connected by transmission through the gear assembly 60; the gear assembly 60 includes: a first gear 61 fixedly mounted on the first rotating shaft 10, a second gear 62 fixedly mounted on the second rotating shaft 20, and a plurality of transmission gears 63 arranged between the first gear 61 and the second gear 62; wherein the number of the transmission gears 63 is an even number, so that the first rotating shaft 10 and the second rotating shaft 20 rotate synchronously. By providing the gear assembly 60, the synchronous rotation of the first rotating shaft 10 and the second rotating shaft 20 can be achieved, and due to the design of an even number of transmission gears 63, the two rotating shafts can maintain the same rotation direction. This transmission method not only ensures the synchronization and stability of the rotation, but also can evenly distribute the transmission force and reduce the force on a single gear.

[0072] Therefore, further combined with the locking structure, the synchronous self-locking of the first rotating shaft 10 and the second rotating shaft 20 can be achieved. When one rotating shaft is locked with its self-locking channel, the other rotating shaft will also be synchronized to the corresponding locking position through the transmission relationship of the gear assembly 60. This synchronous self-locking mechanism not only ensures the precise positioning of the two rotating shafts, but also simplifies the operation process.

[0073] Further, refer to Figure 4 The first gear 61, the second gear 62, and the transmission gear 63 are all inclined gears; the tooth surfaces of the first gear 61 and the second gear 62 are inclined in opposite directions; the tooth surface of the transmission gear 63 is inclined in the opposite direction to the tooth surface of its adjacent gears; wherein, the meshing surfaces of adjacent gears extend along the gear axis to form an inclined meshing line, thereby ensuring smooth transmission of the first rotating shaft 10 and the second rotating shaft 20. It can be understood that the use of inclined gears can make the gear meshing process smoother and more continuous, and have a larger meshing angle and contact line length than spur gears, which not only reduces meshing impact and operating noise, but also improves the transmission's load-bearing capacity and operational stability. At the same time, because the tooth surfaces of adjacent gears are inclined in opposite directions, axial forces can be offset, avoiding the generation of axial thrust.

[0074] Furthermore, the tooth surface inclination angles of the first gear 61, the second gear 62, and the transmission gear 63 are all 20-30°, wherein the tooth surface inclination angle is the angle between the tooth surface and the axial plane of the gear, and the inclination angle is preferably 20°.

[0075] In some embodiments, further reference is made to Figure 4, also includes a fixing assembly 70, which includes: a first connecting plate 71, a second connecting plate 72 and a third connecting plate 73; the first connecting plate 71 and the second connecting plate 72 are respectively provided at both ends of the gear assembly 60; the first connecting plate 71 and the second connecting plate 72 are both provided with mounting holes for mounting and fixing the first rotating shaft 10, the second rotating shaft 20 and the rotating shaft of the transmission gear 63; the rolling bracket 30 is located on the side of the second connecting plate 72 away from the gear assembly 60; the third connecting plate 73 is arranged parallel to the second connecting plate 72, and the rolling bracket 30 is located between the second connecting plate 72 and the third connecting plate 73; wherein, the second connecting plate 72 and the third connecting plate 73 are both provided with through holes corresponding to the first self-locking channel 31 and the second self-locking channel 32, and the ends of the first rotating shaft 10 and the second rotating shaft 20 pass through the second connecting plate 72 and the rolling bracket 30 in sequence and then cooperate with the third connecting plate 73. The stability of the self-locking device of this case can be improved by setting the fixing component 70, wherein the first connecting plate 71 and the second connecting plate 72 cooperate to form the support structure of the gear assembly 60, ensuring the stable operation and precise engagement of the gear transmission system, and the second connecting plate 72 and the third connecting plate 73 cooperate to provide rigid support for the rolling bracket 30, and at the same time, the reliable positioning and support of the rotating shaft are achieved by setting the through hole.

[0076] Further, refer to Figure 1 、 4 A shell 90 is provided on the outside of the fixing assembly 70. The shell 90 can provide all-round protection for the internal gear assembly 60, the fixing assembly 70 and the rolling bracket 30 and other structures, preventing external debris from entering and affecting the operation of the device. At the same time, it also facilitates the sealing of lubricating oil, thereby improving the protection level and service life of the entire self-locking device.

[0077] In some embodiments, at least one end of each of the first and second rotating shafts 10, 20 is provided with a rib structure 80 for increasing friction. The rib structure 80 comprises: a plurality of ribs evenly distributed along the circumference of the first and second rotating shafts 10, 20; each rib extends radially along the shaft to form a protrusion and extends circumferentially along the shaft. The rib structure 80 is used to increase friction between the shaft and the external device when connected. By providing ribs evenly distributed circumferentially at the ends of the shaft, the contact area and contact pressure can be increased, thereby improving the friction and torque transmission capability of the shaft when connected to the external device, and preventing slippage during use.

[0078] Further, refer to Figure 1 、 34. The ends of the first rotating shaft 10 and the second rotating shaft 20 have a flat structure, which can provide a clear assembly reference surface, facilitate positioning and connection with external equipment, and at the same time, the flat structure can also prevent relative rotation. When used in conjunction with the ridge structure 80, it can ensure directional installation and provide sufficient friction to achieve a more reliable connection effect.

[0079] Furthermore, the cross section of the ridge is triangular, and the radial protrusion height of the ridge is 0.5-2 mm.

[0080] The utility model also discloses an electronic device stand including the aforementioned self-locking shaft device. Through the aforementioned device, the electronic device stand can provide stable and precise angular positioning. The synchronous shaft ensures smooth and synchronous adjustment of both ends of the stand, and the self-locking mechanism reliably locks at a preset angle, meeting the angle adjustment requirements of the electronic device in different usage scenarios.

[0081] It should be noted that the electronic devices mentioned here can include mobile phones, monitors, tablet computers, laptops, e-readers, security monitoring screens, industrial touch screens, and other electronic display devices that require flexible viewing angle adjustment. This bracket structure is suitable for devices of different sizes and weights, meeting the needs of various usage scenarios.

[0082] The above is a specific description of the preferred implementation of the present invention, but the invention of the present invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A self-locking shaft device, characterized in that: include: a first rotating shaft, a second rotating shaft, and a rolling bracket; The rolling bracket is provided with a first self-locking channel and a second self-locking channel, the first self-locking channel is used to cooperate with the first rotating shaft, and the second self-locking channel is used to cooperate with the second rotating shaft; The first self-locking channel and the second self-locking channel are both non-closed structures, and the inner walls of the first self-locking channel and the second self-locking channel are both provided with a first locking structure; The outer circumferences of the first rotating shaft and the second rotating shaft are both provided with a second locking structure adapted to the first locking structure; The first locking structure and the second locking structure are engaged with each other to achieve self-locking fixation of the first rotating shaft and the second rotating shaft.

2. The self-locking shaft device according to claim 1, characterized in that: The first locking structure comprises: at least one first plane spaced apart along the circumference of the first self-locking channel and at least one second plane spaced apart along the circumference of the second self-locking channel; Wherein, the first plane and the second plane are both arranged on the inner wall surface of the corresponding self-locking channel, and the number of the first plane and the second plane is equal; The second locking structure includes: at least one third plane provided on the outer circumference of the first rotating shaft and at least one fourth plane provided on the outer circumference of the second rotating shaft; The number of the third planes is equal to the number of the first planes, and the number of the fourth planes is equal to the number of the second planes; The third plane abuts and cooperates with the first plane, and the fourth plane abuts and cooperates with the second plane, so as to achieve circumferential positioning of the first rotating shaft and the second rotating shaft in the rolling bracket.

3. The self-locking shaft device according to claim 2, characterized in that: The first planes are two first planes arranged parallel and opposite to each other along the axial direction of the first self-locking channel; The second planes are two second planes arranged parallel to and opposite to each other along the axial direction of the second self-locking channel; The third planes are two third planes arranged parallel to and opposite to each other along the axial direction of the first rotating shaft, and the two third planes correspond to the two first planes respectively; The fourth planes are two fourth planes arranged axially parallel and opposite to each other along the second rotation axis, and the two fourth planes correspond to the two second planes respectively; The oppositely arranged planes are parallel to each other, and the corresponding matching planes are parallel to each other and abut against each other.

4. The self-locking shaft device according to claim 1, characterized in that: A gear assembly is provided on one side of the rolling bracket; The first rotating shaft and the second rotating shaft are transmission-connected via the gear assembly; The gear assembly comprises: a first gear fixedly mounted on the first rotating shaft, a second gear fixedly mounted on the second rotating shaft, and a plurality of transmission gears disposed between the first gear and the second gear; Wherein, the number of the transmission gears is an even number, so that the first rotating shaft and the second rotating shaft rotate synchronously.

5. The self-locking shaft device according to claim 4, characterized in that: The first gear, the second gear and the transmission gear are all inclined gears; The tooth surfaces of the first gear and the second gear are inclined in opposite directions; The inclination direction of the tooth surface of the transmission gear is opposite to the inclination direction of the tooth surface of the adjacent gear; The meshing surfaces of adjacent gears extend along the axial direction of the gears to form an inclined meshing line, so as to ensure smooth transmission of the first rotating shaft and the second rotating shaft.

6. The self-locking shaft device according to claim 5, characterized in that: The tooth surface inclination angles of the first gear, the second gear and the transmission gear are all 20-30°; The tooth surface inclination angle is the angle between the tooth surface and the axial plane of the gear.

7. The self-locking rotating shaft device according to claim 4, characterized in that: Also included is a fixing assembly, the fixing assembly comprising: a first connecting plate, a second connecting plate, and a third connecting plate; The first connecting plate and the second connecting plate are respectively provided at both ends of the gear assembly; The first connecting plate and the second connecting plate are both provided with mounting holes for mounting and fixing the first rotating shaft, the second rotating shaft and the rotating shaft of the transmission gear; The rolling bracket is located on a side of the second connecting plate away from the gear assembly; The third connecting plate is arranged parallel to the second connecting plate, and the curling bracket is located between the second connecting plate and the third connecting plate; Among them, the second connecting plate and the third connecting plate are both provided with through holes corresponding to the first self-locking channel and the second self-locking channel, and the ends of the first rotating shaft and the second rotating shaft pass through the second connecting plate and the rolling bracket in sequence and then cooperate with the third connecting plate.

8. The self-locking shaft device according to claim 1, characterized in that: At least one end of the first rotating shaft and the second rotating shaft is provided with a ridge structure for increasing friction; The ridge structure comprises: a plurality of ridges evenly distributed along the circumference of the first rotating shaft and the second rotating shaft; Each of the ribs extends along the radial direction of the rotating shaft to form a protrusion, and is also extended along the circumferential direction of the rotating shaft.

9. The self-locking shaft device according to claim 8, characterized in that: The cross section of the ridge is triangular, and the radial protrusion height of the ridge is 0.5-2 mm.

10. An electronic equipment bracket, characterized in that: Comprising a self-locking rotating shaft device according to any one of claims 1-9.

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