Screen rotating mechanism

Abstract

The invention relates to the technical field of screens, and discloses a screen rotating mechanism which comprises a shell and a damping assembly. The shell is provided with a display screen and an operation panel, and the display screen and the operation panel are located on the same surface of the shell; the damping assembly is located at one end of the shell and connected with the shell, the shell is rotatably arranged, and the damping assembly is used for generating damping when the shell rotates. The display screen and the operation panel are located on the same face of the shell, the visual or operation angles of the display screen and the operation panel can be synchronously adjusted by rotating the shell, operation inconvenience caused by separate adjustment of the display screen and the operation panel is avoided, and the adjustment efficiency is improved; the friction force of the damping assembly can enable the rotated shell to be fixed at any adjusting angle, meanwhile, the damping assembly buffers the rotating speed, clamping and shaking of rotation of the shell are avoided, and the angle adjusting process is smoother and more controllable.

Description

Technical Field

[0001] This invention relates to the field of screen technology, and more specifically to a screen rotation mechanism. Background Technology

[0002] A flying probe tester for PCBs is an instrument used to test PCBs (printed circuit boards) with high component density, many layers, high wiring density, and small test point distances. It mainly tests the insulation and continuity of the circuit board.

[0003] In the prior art, the display screen of the flying needle machine is placed on the operating table, and the operating panel is fixed on the machine itself. Due to the large size of the flying needle machine, it is very inconvenient to operate the equipment on the operating table and the operating panel at the same time. At the same time, in the prior art, large screens, such as industrial displays, require force to control the speed during the opening and closing process, which can easily cause the screen to fall off due to improper operation, resulting in poor screen stability and failing to meet the requirements of high-precision operation. Summary of the Invention

[0004] In view of this, the present invention provides a screen rotation mechanism to solve the problem of poor convenience in operating equipment and control panels on the control panel at the same time in the prior art.

[0005] In a first aspect, the present invention provides a screen rotation mechanism, comprising: a housing and a damping assembly. The housing is provided with a display screen and an operation panel, the display screen and the operation panel being located on the same surface of the housing; the damping assembly is located at one end of the housing and connected to the housing, the housing being rotatably disposed, and the damping assembly being used to generate damping when the housing rotates.

[0006] In this embodiment, by simultaneously providing a display screen and an operation panel on the housing, the inconvenience caused by having a separate operation panel is avoided. By placing the display screen and operation panel on the same side of the housing, rotating the housing allows for simultaneous adjustment of the viewing or operation angles of both, avoiding the inconvenience caused by adjusting the display screen and operation panel separately and improving adjustment efficiency. The friction of the damping component allows the rotated housing to be fixed at any adjustment angle, preventing the housing from shifting due to its own weight or slight touch, ensuring that the orientation of the display screen and operation panel always meets the requirements. At the same time, the damping component buffers the rotation speed, preventing the housing from jamming or shaking during rotation, making the angle adjustment process smoother and more controllable.

[0007] In one embodiment, there are at least two damping components, one damping component is disposed at the top of the housing and the other damping component is disposed at the bottom of the housing, and the at least two damping components are disposed opposite to each other; the screen rotation mechanism further includes: a fixing member, there are at least two fixing members, the fixing members are connected to the damping components, and the fixing members are used to fix to the mounting base.

[0008] In one embodiment, the damping assembly includes a first pressure plate, a post, a second pressure plate, a gasket, and a connector. The first pressure plate is located on the housing; the damping plate assembly is located on the first pressure plate, the post is located on the damping plate assembly, the second pressure plate is located on the damping plate assembly, the gasket is located on the second pressure plate, and the connector can sequentially pass through the gasket, the second pressure plate, the post, the damping plate assembly, and the first pressure plate to connect the damping assembly to the housing.

[0009] In one embodiment, the damping plate assembly includes at least two first damping plates and at least one second damping plate, the second damping plate being located on a first pressure plate, a pad being disposed between the at least two first damping plates, one of the first damping plates being located on the second damping plate, and the other first damping plate being disposed on the second pressure plate, the thickness of the first damping plate being L1, the thickness of the second damping plate being L2, wherein L2 > L1.

[0010] In one embodiment, the top and bottom of the housing are provided with a plurality of spaced-apart first through holes, the first pressure plate is provided with a plurality of spaced-apart second through holes, the first damping plate is provided with a plurality of spaced-apart third through holes, the second damping plate is provided with a plurality of spaced-apart fourth through holes, the second pressure plate is provided with a plurality of spaced-apart fifth through holes, and the gasket is provided with a sixth through hole. The first, second, third, fourth, fifth, and sixth through holes are connected in a continuous manner, and the connector can pass through the first, second, third, fourth, fifth, and sixth through holes to connect with the housing.

[0011] In one embodiment, a portion of the fastener is located between at least two first damping plates, there are multiple pads, the inner ring of the fastener is arranged along the outer ring of the pad, and the fastener is provided with multiple spaced seventh through holes, through which the fastener is connected to the mounting base.

[0012] In one embodiment, the second through hole has a first threaded structure inside its wall, and the bottom of the connector has a second threaded structure, with the first threaded structure and the second threaded structure being configured to cooperate with each other.

[0013] In one embodiment, multiple gaskets are provided, and the number of gaskets can be adjusted. In one embodiment, a handle is provided at one end of the housing. Operating the handle causes the housing and the damping assembly to be rotatably disposed relative to the fixed member. The damping assembly is used to provide damping.

[0014] In one embodiment, the first pressure plate, the second pressure plate, the pad, the gasket, the fastener, and the second damping plate are made of stainless steel, and the first damping plate is made of phosphor bronze. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a screen rotation mechanism according to an embodiment of the present invention; Figure 2 This is an exploded structural diagram of a portion of a screen rotation mechanism according to an embodiment of the present invention. Figure 3 This is a front view of a damping component of a screen rotation mechanism according to an embodiment of the present invention; Figure 4 This is a cross-sectional view of a damping component of a screen rotation mechanism according to an embodiment of the present invention; Explanation of reference numerals in the attached figures: 10. Housing; 11. Display screen; 12. Control panel; 13. First through hole; 14. Handle; 20. Damping assembly; 21. First pressure plate; 211. Second through hole; 221. First damping plate; 2211. Third through hole; 222. Second damping plate; 2221. Fourth through hole; 22. Damping plate assembly; 23. Shim; 24. Second pressure plate; 241. Fifth through hole; 25. Shim; 251. Sixth through hole; 26. Connector; 30. Fastener; 31. Seventh through hole. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0020] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0021] The following is combined Figures 1 to 4 The following describes embodiments of the present invention.

[0022] According to an embodiment of the present invention, a screen rotation mechanism is provided. The screen rotation mechanism includes a housing 10 and a damping assembly 20. A display screen 11 and an operation panel 12 are disposed on the housing 10, and the display screen 11 and the operation panel 12 are located on the same surface of the housing 10; the damping assembly 20 is located at one end of the housing 10, the damping assembly 20 is connected to the housing 10, the housing 10 is rotatably disposed, and the damping assembly 20 is used to generate damping when the housing 10 rotates.

[0023] In this embodiment, by simultaneously providing a display screen 11 and an operation panel 12 on the housing 10, the inconvenience caused by setting the operation panel 12 separately is avoided. By placing the display screen 11 and the operation panel 12 on the same side of the housing 10, rotating the housing 10 can simultaneously adjust the viewing or operation angle of both, avoiding the inconvenience caused by adjusting the display screen 11 and the operation panel 12 separately, thus improving adjustment efficiency. The friction of the damping component 20 can fix the housing 10 at any adjustment angle after rotation, preventing the housing 10 from shifting due to its own weight or slight touch, ensuring that the orientation of the display screen 11 and the operation panel 12 always meets the requirements. At the same time, the damping component 20 buffers the rotation speed, preventing the housing 10 from jamming or shaking during rotation, making the angle adjustment process smoother and more controllable.

[0024] In one embodiment, there are at least two damping components 20, one damping component 20 is disposed on the top of the housing 10 and the other damping component 20 is disposed on the bottom of the housing 10, and the at least two damping components 20 are disposed opposite to each other. The screen rotation mechanism further includes: a fixing member 30, there are at least two fixing members 30, the fixing members 30 are connected to the damping components 20, and the fixing members 30 are used to fix to the mounting base.

[0025] The damping components 20, symmetrically arranged at the top and bottom, generate bidirectional synchronous damping force on the housing 10, preventing inconsistent damping caused by the shift of the housing 10's center of gravity, such as uneven weight distribution on the display side. This avoids weak damping at the top and strong damping at the bottom, preventing tilting and jamming during rotation, and ensuring linear distribution of damping force during rotation, resulting in a smooth and unbiased feel. At the same time, the fixing component 30 provides radial support.

[0026] It should be noted that the mounting base is the body that cooperates with the screen rotation mechanism, that is, the screen rotation mechanism is mounted on the body of the flying needle machine.

[0027] In one embodiment, such as Figure 3 As shown, the damping assembly 20 includes a first pressure plate 21, a damping plate assembly 22, a pad 23, a second pressure plate 24, a pad 25, and a connector 26. The first pressure plate 21 is located on the housing 10, the damping plate assembly 22 is located on the first pressure plate 21, the pad 23 is located on the damping plate assembly 22, the second pressure plate 24 is located on the damping plate assembly 22, the pad 25 is located on the second pressure plate 24, and the connector 26 can pass through the pad 25, the second pressure plate 24, the pad 23, the damping plate assembly 22, and the first pressure plate 21 in sequence to connect the damping assembly 20 to the housing 10.

[0028] The layered design ensures that the first pressure plate 21, damping plate assembly 22, pad post 23, second pressure plate 24, and pad 25 fit together tightly. The connecting piece 26 passes through to form a rigid clamping link, which avoids the loss of damping force due to gaps between components, thus preventing free rotation during rotation and ensuring that the clamping force is completely converted into damping friction force.

[0029] Furthermore, the modular layered structure facilitates the disassembly and replacement of components without disassembling the entire housing 10, reducing maintenance costs. At the same time, the layered layout makes full use of axial space, avoiding the damping component 20 occupying too much radial dimension, and achieving the damping function within a limited volume.

[0030] In this embodiment, the connector 26 is a bolt for bolted connection. In other embodiments, the type of connector 26 is not limited to this.

[0031] In one embodiment, the damping plate assembly 22 includes at least two first damping plates 221 and at least one second damping plate 222. The second damping plate 222 is located on a first pressure plate 21. A pad 23 is disposed between the at least two first damping plates 221. One of the first damping plates 221 is located on the second damping plate 222, and a second pressure plate 24 is disposed on the other first damping plate 221. The thickness of the first damping plate 221 is L1, and the thickness of the second damping plate 222 is L2, wherein L2 > L1.

[0032] On the one hand, the second damping plate 222 serves as the main damping layer. Due to its large thickness, it has stronger wear resistance and provides basic damping force. The first damping plate 221 serves as the fine-tuning damping layer. With the spacing of the pad column 23, the pressure area and deformation degree of the first damping plate 221 can be precisely controlled, avoiding the problem of excessive or insufficient damping force of a single-thickness damping plate and widening the damping force adjustment range.

[0033] On the other hand, the pad 23 is set between the two first damping plates 221 to form a rigid gap, which avoids irreversible deformation of the first damping plates 221 due to excessive compression during rotation, ensures that the friction coefficient of the damping plates is stable in the long term, and extends the service life of the damping assembly 20.

[0034] It should be noted that the first pressure plate 21, the first damping plate 221, the second damping plate 222, and the second pressure plate 24 are all annular parts with hollow structures. Specifically, the hollow structures of the first pressure plate 21, the first damping plate 221, the second damping plate 222, and the second pressure plate 24 are interconnected through holes.

[0035] In one embodiment, such as Figure 2 , Figure 4 As shown, the top and bottom of the housing 10 are provided with a plurality of spaced first through holes 13, the first pressure plate 21 is provided with a plurality of spaced second through holes 211, the first damping plate 221 is provided with a plurality of spaced third through holes 2211, the second damping plate 222 is provided with a plurality of spaced fourth through holes 2221, the second pressure plate 24 is provided with a plurality of spaced fifth through holes 241, and the gasket 25 is provided with a sixth through hole 251. The first through holes 13, the second through holes 211, the third through holes 2211, the fourth through holes 2221, the fifth through holes 241 and the sixth through holes 251 are connected in a continuous manner. The connector 26 can pass through the first through holes 13, the second through holes 211, the third through holes 2211, the fourth through holes 2221, the fifth through holes 241 and the sixth through holes 251 to connect with the housing 10.

[0036] Multiple spaced first through holes 13 correspond to multiple connectors 26, so that the clamping force is evenly distributed in the circumferential direction of each component, avoiding local indentation of the pressure plate and uneven wear of the damping plate caused by concentrated force at a single point, while improving the overall impact resistance of the damping assembly 20.

[0037] The first through hole 13, the second through hole 211, the third through hole 2211, the fourth through hole 2221, the fifth through hole 241 and the sixth through hole 251 are connected to form a positioning reference axis, ensuring that the first pressure plate 21, the damping plate, the second pressure plate 24, the gasket 25 and other components are fully aligned during assembly, and avoiding the damping force off-center due to component misalignment.

[0038] In one embodiment, a portion of the fastener 30 is located between at least two first damping plates 221, there are multiple pads 23, the inner ring of the fastener 30 is arranged along the outer ring of the pad 23, and the fastener 30 is provided with multiple spaced seventh through holes 31, through which the fastener 30 is connected to the mounting base.

[0039] Specifically, the fastener 30 is an annular piece with a hollow structure. The fastener 30 is directly connected to the mounting base, such as the equipment frame, to provide a rigid mounting reference for the entire screen rotation mechanism and to prevent loosening of the installation when the damping component 20 is connected to the housing 10.

[0040] Furthermore, the inner ring of the fastener 30 is set along the outer ring of the pad post 23 to form a radial limit, preventing the damping assembly 20 from shifting as a whole during rotation, ensuring a stable transmission path of the damping force and precise rotation angle.

[0041] In one embodiment, the second through hole 211 has a first threaded structure inside its wall, and the bottom of the connector 26 has a second threaded structure, with the first threaded structure and the second threaded structure being configured to cooperate with each other.

[0042] On the one hand, the threaded fit has a self-locking function, which can effectively resist the loosening of the connectors caused by vibration and prevent the damping force from decreasing due to the reduced fit of the components of the damping assembly 20. By rotating the connector 26, the thread insertion depth can be finely adjusted, thereby controlling the clamping force of the pressure plate on the damping plate and achieving precise calibration of the damping force.

[0043] On the other hand, threaded connections facilitate quick disassembly. When damping plates wear or components are damaged, they can be quickly disassembled and replaced, reducing maintenance costs and downtime.

[0044] In one embodiment, a plurality of gaskets 25 are provided, and the number of gaskets 25 is adjustable.

[0045] Specifically, the number of gaskets 25 directly determines the total axial thickness of the damping assembly 20, thereby adjusting the clamping force of the pressure plate on the damping plate. That is, the more gaskets 25, the greater the total thickness, the stronger the clamping force, and the greater the damping force, and vice versa.

[0046] Furthermore, after long-term use, the damping pads will wear down due to friction, resulting in a decrease in damping force. At this time, the number of pads can be increased to compensate for the wear and restore the original damping force without replacing the entire damping assembly, thus extending the product life cycle and reducing usage costs.

[0047] In this embodiment, as Figure 3 , Figure 4 As shown, the number of gaskets 25 is three. In other embodiments, the number of gaskets 25 is not limited to this, and may also be four, five, etc.

[0048] In one embodiment, such as Figure 1 As shown, a handle 14 is provided at one end of the housing 10. By operating the handle 14, the housing 10 and the damping assembly 20 are rotatably disposed relative to the fixing member 30. The damping assembly 20 is used to provide damping.

[0049] The handle 14 provides a clear point of force application, avoiding the direct prying of the housing 10, saving effort and preventing slippage.

[0050] In one embodiment, the first pressure plate 21, the second pressure plate 24, the pad 23, the shim 25, the fastener 30, and the second damping plate 222 are made of stainless steel, while the first damping plate 221 is made of phosphor bronze. By adjusting the clamping force of the stainless steel pressure plate and the thickness / area of ​​the phosphor bronze damping plate, the damping coefficient can be precisely adjusted to meet the damping requirements of different screens. Furthermore, phosphor bronze is softer than stainless steel, and the wear of soft phosphor bronze is much greater than that of hard stainless steel. The wear debris is powdery and will not cause seizing, reducing the damping force attenuation rate after multiple rotations and ensuring the damping effect.

[0051] According to an embodiment of the present invention, another aspect provides a flying probe testing machine, including the screen rotation mechanism described above.

[0052] According to an embodiment of the present invention, another aspect provides an impedance testing machine, including the screen rotation mechanism described above.

[0053] The screen rotation mechanism includes a housing 10 and a damping assembly 20. The housing 10 is provided with a display screen 11 and an operation panel 12, which are located on the same surface of the housing 10. The damping assembly 20 is located at one end of the housing 10 and is connected to the housing 10. The housing 10 is rotatably mounted, and the damping assembly 20 is used to generate damping when the housing 10 rotates.

[0054] In this embodiment, by simultaneously providing a display screen 11 and an operation panel 12 on the housing 10, the inconvenience caused by setting the operation panel 12 separately is avoided. By placing the display screen 11 and the operation panel 12 on the same side of the housing 10, rotating the housing 10 can simultaneously adjust the viewing or operation angle of both, avoiding the inconvenience caused by adjusting the display screen 11 and the operation panel 12 separately, thus improving adjustment efficiency. The friction of the damping component 20 can fix the housing 10 at any adjustment angle after rotation, preventing the housing 10 from shifting due to its own weight or slight touch, ensuring that the orientation of the display screen 11 and the operation panel 12 always meets the requirements. At the same time, the damping component 20 buffers the rotation speed, preventing the housing 10 from jamming or shaking during rotation, making the angle adjustment process smoother and more controllable.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this invention.

[0057] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A screen rotation mechanism, characterized in that, include: A housing (10) is provided with a display screen (11) and an operation panel (12), the display screen (11) and the operation panel (12) being located on the same surface of the housing (10); Damping assembly (20) is located at one end of the housing (10) and connected to the housing (10). The housing (10) is rotatably disposed and the damping assembly (20) is used to generate damping when the housing (10) rotates.

2. The screen rotation mechanism according to claim 1, characterized in that, The damping assembly (20) comprises at least two components, one of which is disposed on the top of the housing (10) and the other on the bottom of the housing (10). The at least two damping assemblies (20) are arranged opposite to each other. The screen rotation mechanism further includes: The fastener (30) is at least two, and the fastener (30) is connected to the damping assembly (20). The fastener (30) is used to fix the fastener to the mounting base.

3. The screen rotation mechanism according to claim 2, characterized in that, The damping component (20) includes: The first pressure plate (21) is located on the housing (10); Damping plate assembly (22), the damping plate assembly (22) being located on the first pressure plate (21); A pad (23) is located on the damping plate assembly (22); The second pressure plate (24) is located on the damping plate assembly (22); A gasket (25) is located on the second pressure plate (24); A connector (26) can pass sequentially through the gasket (25), the second pressure plate (24), the pad post (23), the damping plate assembly (22) and the first pressure plate (21) to connect the damping assembly (20) to the housing (10).

4. The screen rotation mechanism according to claim 3, characterized in that, The damping plate assembly (22) includes at least two first damping plates (221) and at least one second damping plate (222). The second damping plate (222) is located on the first pressure plate (21). The pad (23) is disposed between at least two first damping plates (221). One of the first damping plates (221) is located on the second damping plate (222), and the other first damping plate (221) is disposed on the second pressure plate (24). The thickness of the first damping plate (221) is L1, and the thickness of the second damping plate (222) is L2, wherein L2 > L1.

5. The screen rotation mechanism according to claim 4, characterized in that, The top and bottom of the housing (10) are provided with a plurality of spaced first through holes (13), the first pressure plate (21) is provided with a plurality of spaced second through holes (211), the first damping plate (221) is provided with a plurality of spaced third through holes (2211), the second damping plate (222) is provided with a plurality of spaced fourth through holes (2221), the second pressure plate (24) is provided with a plurality of spaced fifth through holes (241), and the gasket (25) is provided with a sixth through hole (13). The first through hole (13), the second through hole (211), the third through hole (2211), the fourth through hole (2221), the fifth through hole (241) and the sixth through hole (251) are connected in a continuous manner. The connector (26) can pass through the first through hole (13), the second through hole (211), the third through hole (2211), the fourth through hole (2221), the fifth through hole (241) and the sixth through hole (251) to connect with the housing (10).

6. The screen rotation mechanism according to claim 4, characterized in that, The fixing member (30) is located between at least two of the first damping plates (221), and there are multiple pads (23). The inner ring of the fixing member (30) is arranged along the outer ring of the pad (23). The fixing member (30) is provided with multiple spaced seventh through holes (31). The fixing member (30) is connected to the mounting base through the seventh through holes (31).

7. The screen rotation mechanism according to claim 5, characterized in that, The second through hole (211) has a first threaded structure inside its hole wall, and the bottom of the connector (26) has a second threaded structure. The first threaded structure and the second threaded structure are configured to cooperate with each other.

8. The screen rotation mechanism according to claim 3, characterized in that, The gaskets (25) are configured in multiple ways, and the number of gaskets (25) is adjustable.

9. The screen rotation mechanism according to claim 2, characterized in that, One end of the housing (10) is provided with a handle (14). By operating the handle (14), the housing (10) and the damping assembly (20) are rotatably disposed relative to the fixing member (30). The damping assembly (20) is used to provide damping.

10. The screen rotation mechanism according to claim 4, characterized in that, The first pressure plate (21), the second pressure plate (24), the pad (23), the pad (25), the fastener (30) and the second damping plate (222) are made of stainless steel, and the first damping plate (221) is made of phosphor bronze.

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