Chair frame operation board

Abstract

The utility model relates to the technical field of operation boards, one embodiment of the utility model provides a chair frame operation board which is used for being arranged on an instrument tray, the operation board comprises a damper arranged in the instrument tray, and the damper is provided with a rotating end; one end of the connecting piece is connected to the rotating end; the screen body is located on one side of the damper, and the other end of the connecting piece is connected to the screen body. According to the technical scheme, the technical problem that a chair frame operation board in the prior art cannot rotate flexibly and is convenient to disassemble and assemble at the same time is solved.

Description

Technical Field

[0001] Embodiments of this disclosure relate to the field of control panel technology, and more specifically, to chair frame control panels. Background Technology

[0002] Early medical chairs had simple functions. With the development of medical technology and the emphasis on patient comfort, medical chairs need to have more functions, such as height adjustment, backrest angle adjustment, and body position adjustment. This requires the control panel to accurately control these functions. At the same time, the installation method must ensure that the control panel is firmly connected to the chair frame to ensure the reliability of the functions.

[0003] In existing technologies, the main installation methods for chair frame control panels are screw fixing and rotatable installation. Screw fixing ensures the stability of the control panel and facilitates disassembly for disinfection and cleaning, but it also prevents the control panel from rotating and thus restricts angle and position adjustments, making it less convenient to use. Rotatable installation, on the other hand, often uses a pivot, bearings, and an angle locking device. Common angle locking devices include mechanical locking and electromagnetic locking. Mechanical locking uses teeth, slots, or other structures to fix the angle, while electromagnetic locking uses electromagnetic force to lock the pivot. This approach balances stability with flexible adjustment of the control panel's angle and position, making it more convenient to use. However, since medical environments require frequent cleaning and disinfection, the control panel needs to be easy to disassemble and clean. This method, however, uses many precision parts and is not easy to assemble and disassemble.

[0004] In summary, the existing installation method of the chair frame control panel needs to be improved to allow for flexible adjustment of its angle and position while facilitating disassembly and cleaning. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a chair frame control panel, which solves the technical problem in the related art that the chair frame control panel cannot simultaneously achieve flexible rotation and easy disassembly.

[0006] According to one aspect, at least one embodiment of this disclosure provides a chair frame control panel for mounting on an instrument panel, the control panel comprising:

[0007] A damper is disposed within the instrument panel, the damper having a rotating end that rotates relative to the instrument panel;

[0008] A connector, one end of which is connected to the rotating end;

[0009] The screen body is located on one side of the damper, and the other end of the connector is connected to the screen body.

[0010] For example, in at least one embodiment of the present disclosure, a chair frame control panel is provided, wherein the damper further has a fixed end, and the control panel further includes:

[0011] A mounting plate is disposed within the instrument tray, and the fixed end is disposed on the mounting plate.

[0012] For example, at least one embodiment of the present disclosure provides a chair frame control panel, the control panel further comprising:

[0013] Fastening components;

[0014] A connecting sleeve is provided on the rotating end, and one end of the connector is fixed inside the connecting sleeve by the fastening assembly.

[0015] For example, at least one embodiment of the present disclosure provides a chair frame control panel, wherein the screen body includes:

[0016] Screen bottom cover;

[0017] A fixing plate is disposed inside the lower shell of the screen, and the other end of the connector is disposed on the fixing plate.

[0018] For example, in at least one embodiment of the chair frame control panel provided in this disclosure, the screen body further includes:

[0019] The upper screen cover is detached and installed on the lower screen cover;

[0020] The display screen is located inside the upper shell of the screen.

[0021] For example, in at least one embodiment of this disclosure, a chair frame operating panel is provided, wherein the fastening assembly includes:

[0022] The main body is disposed on the connecting sleeve, the main body has a groove, the side wall of the groove has an opening, and the groove communicates with the inside of the connecting sleeve through the opening;

[0023] A limiting component is fixedly disposed at the top of the groove and has a pressing surface, which is located inside the connecting sleeve.

[0024] The second limiting member is movably disposed within the groove, located on one side of the first limiting member. The second limiting member has a second pressing surface. The second limiting member is arranged such that after it moves, the second pressing surface merges with the first pressing surface to lock the connector, or the second pressing surface and the first pressing surface are released from merging and disengage from the connector.

[0025] For example, in at least one embodiment of the present disclosure, the chair frame operation panel, after the extrusion surface one and the extrusion surface one are combined, form an arc surface, which is the same as the arc surface profile of the end of the connector.

[0026] For example, in at least one embodiment of the chair frame operating panel provided in this disclosure, the first limiting member has a threaded hole, the second limiting member has a through hole, the threaded hole and the through hole are connected, the side wall of the groove also has a limiting groove, the limiting groove is located below the opening, the second limiting member also has a limiting part, the limiting part moves within the limiting groove, and the fastening assembly further includes:

[0027] A rotating component is threaded inside the threaded hole. The rotating component rotates relative to the limiting component 2, and the top end of the rotating component extends out from the top of the threaded hole.

[0028] For example, in at least one embodiment of the chair frame operating panel provided in this disclosure, the end of the rotating member extends from the bottom of the through hole, and the fastening assembly further includes:

[0029] A handwheel is located at the top of the rotating component;

[0030] A locking element is disposed at the end of the rotating component, used to drive the second limiting component closer to the first limiting component.

[0031] For example, in at least one embodiment of the chair frame operating panel provided in this disclosure, the fastening assembly further includes:

[0032] An elastic element, with one end acting on the bottom of the groove and the other end acting on the bottom of the second limiting element, is used to provide a force that moves the second limiting element away from the first limiting element.

[0033] The beneficial effects of the embodiments disclosed herein are as follows:

[0034] In this disclosure, to address the technical problem in related technologies where the chair frame control panel cannot simultaneously achieve flexible rotation and easy disassembly, a damper and connector are used to mount the screen body onto the instrument panel. The damper can be an existing Gaitan damper, which provides resistance through the friction of metal, ensuring that the screen body can rotate freely and stop at any angle, meeting the operational needs of different angles. Furthermore, both the damper and connector can be installed using screws, making the overall structure easy to install and disassemble.

[0035] In practical applications, the damper is securely mounted inside the instrument panel. The rotating end of the damper is tightly connected to one end of the connector, for example, by tightening screws or using a locking mechanism to ensure a stable connection. The other end of the connector is connected to the screen body, such as by bolts or a magnetic connection, allowing the screen body to establish a connection with the rotating end of the damper through the connector. When it is necessary to adjust the angle and position of the screen body, the operator can rotate the screen body relatively easily. Because the damper provides appropriate resistance, the screen body can remain stable after being rotated to the appropriate angle without wobbling.

[0036] The advantages of this design are: Flexible angle adjustment: Through the cooperation of the damper and connectors, the screen body can be flexibly adjusted to meet the viewing angle needs of medical staff in different usage scenarios, greatly improving ease of use compared to screw-fixed installation. Stable angle maintenance: The damping force provided by the damper allows the screen body to remain stable after rotating to the desired angle, preventing changes in angle due to slight vibrations or touches, ensuring stability during operation and providing a reliable operating interface for medical staff. Relatively simple structure: Unlike existing rotatable installation methods that use many precision parts, this solution mainly consists of a damper, connectors, and the screen body, resulting in a relatively simple structure that reduces costs to some extent and facilitates subsequent disassembly and cleaning. Potential ease of cleaning: Due to the relatively simple overall structure, the operating panel is easier to disassemble and clean than complex precision parts, meeting the requirements for equipment cleaning and disinfection in medical environments. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0038] Figure 1 This is a schematic diagram of the structure of the chair frame operating panel mounted on the instrument panel in one embodiment of the present disclosure;

[0039] Figure 2 for Figure 1 A magnified structural diagram of part A in the embodiment;

[0040] Figure 3 This is a schematic diagram of the structure of the lower screen shell in yet another embodiment of this disclosure;

[0041] Figure 4 This is a schematic diagram of the fastening assembly in one embodiment of the present disclosure;

[0042] Figure 5 This is a schematic diagram of the fastening assembly in another embodiment of the present disclosure;

[0043] Figure 6 for Figure 5 A schematic diagram of the fastening assembly in the embodiment;

[0044] Figure 7 for Figure 5 A cross-sectional structural schematic diagram of the fastening assembly in the embodiment;

[0045] In the diagram: 1. Instrument tray, 2. Damper, 3. Rotating end, 4. Connector, 5. Screen body, 6. Fixed end, 7. Mounting plate, 8. Fastening assembly, 9. Connecting sleeve, 10. Lower shell of screen, 11. Fixed plate, 12. Upper shell of screen, 13. Display screen, 14. Body, 15. Groove, 16. Opening, 17. Limiting component one, 18. Extrusion surface one, 19. Limiting component two, 20. Extrusion surface two, 21. Threaded hole, 22. Through hole, 23. Limiting groove, 24. Limiting part, 25. Rotating component, 26. Handwheel, 27. Clamping component, 28. Elastic component. Detailed Implementation

[0046] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0047] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0048] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0049] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0050] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0051] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0052] like Figures 1-4 As shown, a chair frame control panel of one embodiment of the present disclosure is provided on an instrument panel 1. The control panel includes: a damper 2 disposed inside the instrument panel 1, the damper 2 having a rotating end 3 that rotates relative to the damper 2; one end of a connector 4 connected to the rotating end 3; and a screen body 5 located on one side of the damper 2, the other end of the connector 4 connected to the screen body 5.

[0053] In some examples, to address the technical challenge of the chair frame control panel not simultaneously allowing for flexible rotation and easy disassembly, a damper 2 and a connector 4 are used to mount the screen body 5 onto the instrument panel 1. The damper 2 can be an existing Gaitan damper 2, which provides resistance through metal friction, ensuring that the screen body 5 can rotate freely and stop at any angle, meeting the operational needs at different angles. Furthermore, both the damper 2 and the connector 4 can be installed using screws, making the overall structure easy to install and disassemble.

[0054] In practical applications, the damper 2 is securely installed inside the instrument panel 1. The rotating end 3 of the damper 2 is tightly connected to one end of the connector 4, for example, by tightening screws or engaging a slot to ensure a stable connection. The other end of the connector 4 is connected to the screen body 5, for example, by bolts or magnetic connection, allowing the screen body 5 to establish a connection with the rotating end 3 of the damper 2 through the connector 4. When it is necessary to adjust the angle and position of the screen body 5, the operator can rotate the screen body 5 relatively easily. Because the damper 2 provides appropriate resistance, the screen body 5 can remain stable after being rotated to the appropriate angle without wobbling.

[0055] For example, such as Figure 1As shown, the advantages of this design are: Flexible angle adjustment: Through the cooperation of damper 2 and connector 4, the screen body 5 can be flexibly adjusted in angle, meeting the needs of medical staff for the viewing angle of the operating panel in different usage scenarios. Compared with screw-fixed installation, this greatly improves the convenience of use. Stable angle maintenance: The damping force provided by damper 2 allows the screen body 5 to remain stable after rotating to the required angle, preventing changes in angle due to slight vibrations or touches, ensuring stability during operation and providing a reliable operating interface for medical staff. Relatively simple structure: Unlike existing rotatable installation methods that use many precision parts, this solution mainly consists of damper 2, connector 4, and screen body 5. The structure is relatively simple, reducing costs to some extent and providing convenience for subsequent disassembly and cleaning. Potential ease of cleaning: Due to the relatively simple overall structure, the operating panel is easier to disassemble and clean than complex precision parts combinations when cleaning and disinfection are required, meeting the requirements for equipment cleaning and disinfection in medical environments.

[0056] like Figures 1-4 As shown, a chair frame control panel is shown in another embodiment of the present disclosure. The damper 2 also has a fixed end 6. The control panel also includes a mounting plate 7 disposed inside the instrument panel 1, and the fixed end 6 is disposed on the mounting plate 7.

[0057] In some examples, during the actual assembly of the chair frame operating panel, the mounting plate 7 is first fixed inside the instrument tray 1. For example, screws can be used to tighten the mounting plate 7 into the pre-set screw holes on the instrument tray 1, ensuring that the mounting plate 7 is securely placed inside the instrument tray 1. Next, the fixing end 6 of the damper 2 is installed on the mounting plate 7. This installation method can be achieved by using a specific snap-fit ​​structure to snap the protrusion on the fixing end 6 of the damper 2 into the corresponding slot on the mounting plate 7 for quick installation; or by using screws to tightly fix the fixing end 6 of the damper 2 to the mounting plate 7. After completing the above steps, the damper 2 is stably installed inside the instrument tray 1, laying the foundation for the subsequent connection of the connector 4 and the screen body 5. When medical staff operate the chair frame operating panel, because the damper 2 is securely installed through the mounting plate 7, the damper 2 can reliably provide damping force during the angle adjustment process of the screen body 5, ensuring that the screen body 5 remains stably at the required angle.

[0058] For example, such as Figure 1As shown, the advantages of this design are: enhanced stability: the mounting plate 7 provides additional support and fixing points for the damper 2, making the installation of the damper 2 within the instrument tray 1 more stable. This helps reduce the shaking of the screen body 5 caused by the damper 2 becoming loose, ensuring the stability of the operating tray during use and improving the accuracy of medical staff's operations. Optimized layout: the mounting plate 7 helps to rationally plan the internal space of the instrument tray 1, making the installation position of the damper 2 more regular and facilitating layout coordination with other components within the instrument tray 1, thus improving the compactness and rationality of the overall internal structure of the instrument tray 1. Increased versatility: by connecting the damper 2 to the instrument tray 1 with the mounting plate 7, different specifications of the mounting plate 7 can be designed according to the structural characteristics and dimensions of different instrument trays 1 to adapt to various types of instrument trays 1, enhancing the versatility of the chair frame operating tray.

[0059] like Figures 1-4 As shown, a chair frame control panel is shown in another embodiment of the present disclosure. The control panel also includes a fastening assembly 8. A connecting sleeve 9 is disposed on the rotating end 3, and one end of the connector 4 is fixed inside the connecting sleeve 9 by the fastening assembly 8.

[0060] In some examples, considering that connector 4 cannot be directly connected to the rotating end 3 of damper 2, a connecting sleeve 9 is added between them. During installation, the connecting sleeve 9 is first tightly fitted onto the rotating end 3 of damper 2 to ensure a stable connection and prevent easy relative rotation. For example, the connecting sleeve 9 and the rotating end 3 can be initially fixed with an interference fit to ensure that they will not loosen during subsequent operations. Next, the end of connector 4 with the connector head is inserted into the connecting sleeve 9. At this point, the fastening assembly 8 is used to further secure connector 4 and connecting sleeve 9. The fastening assembly 8 can consist of bolts and nuts, or screws, and corresponding screw holes need to be pre-set on the connecting sleeve 9 and connector 4. After connector 4 is inserted into the connecting sleeve 9, the bolts or screws are passed through the screw holes on the connecting sleeve 9 and connector 4, and then tightened with nuts. In this way, connector 4 is firmly fixed inside the connecting sleeve 9, thereby achieving a reliable connection with the rotating end 3 of damper 2.

[0061] For example, such as Figure 4As shown, the advantages of this design are: a stable and reliable connection: the fastening assembly 8 securely fixes the connector 4 within the connecting sleeve 9, ensuring that the connector 4 and the rotating end 3 of the damper 2 will not loosen or fall off during the use of the operating panel. This is crucial for ensuring the stability of the operating panel, especially in medical environments where it is frequently used and may be subject to vibration. A stable connection prevents malfunctions caused by loose parts, ensuring the reliability of the various functions of the medical chair. Easy installation and disassembly: Using the fastening assembly 8 for connection makes installation and disassembly relatively simple. When the operating panel needs maintenance, parts replacement, or cleaning, medical staff can easily use tools to loosen the fastening assembly 8 and remove the connector 4 from the connecting sleeve 9 for subsequent operations. This design improves the maintainability of the operating panel and reduces maintenance costs and time.

[0062] like Figures 1-4 As shown, a chair frame control panel is shown in another embodiment of the present disclosure. The screen body 5 includes: a lower screen shell 10; a fixing plate 11 is disposed inside the lower screen shell 10, and the other end of the connector 4 is disposed on the fixing plate 11.

[0063] In some examples, the assembly of the screen body 5 is a crucial step in the actual production of the chair frame control panel. First, the fixing plate 11 is installed inside the lower screen housing 10. For example, the lower screen housing 10 has pre-set slots, and the edge of the fixing plate 11 fits precisely into these slots, achieving initial positioning. Then, the fixing plate 11 is further secured to the lower screen housing 10 with screws to ensure a firm connection. Next, the other end of the connector 4 is connected to the fixing plate 11. Screw holes can be made in the fixing plate 11, and the connector 4 has corresponding external threads. By rotating the connector 4, it is screwed into the fixing plate 11, completing the connection. In this way, the screen body 5 is tightly connected to the connector 4 via the fixing plate 11.

[0064] For example, such as Figure 3 As shown, the advantage of this design is that it facilitates installation and maintenance: the connector 4 is connected to the fixing plate 11 instead of directly to the lower screen shell 10, which simplifies the installation process. If the connector 4 needs to be replaced or the screen body 5 needs to be repaired, it is only necessary to disassemble the connection between the fixing plate 11 and the connector 4, without having to perform complicated operations on the lower screen shell 10, which reduces the difficulty of installation and maintenance and saves time and costs.

[0065] like Figures 1-4 As shown, it illustrates a chair frame control panel in another embodiment of the present disclosure. The screen body 5 further includes: an upper screen housing 12 detachably mounted on a lower screen housing 10; and a display screen 13 disposed inside the upper screen housing 12.

[0066] In some examples, the display screen 13 is first installed onto the designated position of the upper screen housing 12 using screws. Then, the upper screen housing 12 is assembled with the lower screen housing 10, which has already been fitted with the fixing plate 11 and connector 4, using screws or clips. For example, the edges of the upper screen housing 12 and the lower screen housing 10 are provided with corresponding clips, which can be pressed together to make them fit tightly, or a more secure connection can be achieved by screwing screws into the pre-set screw holes.

[0067] For example, such as Figure 1 As shown, the advantages of this design are: ease of maintenance and replacement: the screen housing 12 is detachably mounted on the lower screen housing 10, making the maintenance and replacement of the display screen 13 simple and easy. In medical environments, equipment is used frequently, and the display screen 13 may be damaged or require regular cleaning. This detachable structure allows maintenance personnel to quickly access the display screen 13, reducing maintenance difficulty, shortening maintenance time, and improving equipment availability. Protection of the display screen 13: The screen housing 12 provides physical protection for the display screen 13, preventing direct impact from external objects and reducing the risk of damage. Simultaneously, specific structures within the screen housing 12 can fix and cushion the display screen 13, protecting it from damage when the equipment is moved or subjected to vibration, extending its lifespan. Enhanced aesthetics and overall appearance: After assembly, the screen housing 12 and the lower screen housing 10 form a complete and aesthetically pleasing screen body 5. This integrated design not only enhances the visual effect of the control panel but also makes the entire device look more professional and refined, meeting the aesthetic requirements of medical settings.

[0068] like Figures 5-7 As shown, a chair frame control panel is illustrated in another embodiment of this disclosure. The fastening assembly 8 includes: a main body 14 disposed on a connecting sleeve 9, the main body 14 having a groove 15, an opening 16 on the side wall of the groove 15, the groove 15 communicating with the interior of the connecting sleeve 9 through the opening 16; a limiting member 17 fixedly disposed on the top of the groove 15, having a pressing surface 18, the pressing surface 18 being located inside the connecting sleeve 9; and a limiting member 29 movably disposed within the groove 15, located on one side of the limiting member 17, the limiting member 29 having a pressing surface 20, the limiting member 29 being arranged such that after movement, the pressing surface 20 and the pressing surface 18 merge to lock the connecting member 4, or the pressing surface 20 and the pressing surface 18 disengage and detach from the connecting member 4.

[0069] In some examples, in addition to the bolts and screws mentioned earlier, the fastening assembly 8 is designed with a new structure: when it is necessary to fix the connector 4, one end of the connector 4 is inserted into the connecting sleeve 9, positioning it between the pressing surface 18 of the first limiting member 17 and the pressing surface 20 of the second limiting member 19. Then, the second limiting member 19 is pushed to move within the groove 15. As the second limiting member 19 moves, the pressing surface 20 gradually approaches the pressing surface 18, and eventually the two merge, tightly pressing the connector 4, thereby firmly fixing the connector 4 within the connecting sleeve 9. During the use of the chair frame control panel, due to the action of the fastening assembly 8, the connector 4 and the connecting sleeve 9 maintain a stable connection, ensuring that the screen body 5 will not loosen when its angle is adjusted by the damper 2, thus guaranteeing the stable operation of the control panel.

[0070] For example, such as Figure 6 As shown, the advantages of this design are: reliable fastening effect: the clamping surfaces 18 and 20 of the first limiting member 17 and the second limiting member 19 are combined to hold the connector 4, providing a strong clamping force to ensure a firm connection between the connector 4 and the connecting sleeve 9. This effectively prevents the connector 4 from loosening or falling off due to vibration, external force, or other factors during the use of the operating panel, ensuring the stability and reliability of the operating panel. Convenient adjustment function: When it is necessary to disassemble the connector 4, simply move the second limiting member 19 in the opposite direction to cancel the merging of the clamping surfaces 20 and 18, and the connector 4 can be easily removed, facilitating the maintenance and repair of the operating panel. Compact and reasonable structure: The fastening assembly 8 is entirely set on the connecting sleeve 9, resulting in a compact structure that does not occupy excessive space, contributing to the simplicity and compactness of the overall structure of the operating panel. At the same time, this design makes the connection between the fastening assembly 8 and the connecting sleeve 9 tighter, enhancing the stability of the entire connection structure. High adaptability: It can adapt to different specifications of connectors 4. By simply adjusting the position of the limiting part 2 19, connectors 4 of different diameters or shapes can be effectively clamped, which improves the versatility and adaptability of the fastening assembly 8 and reduces the cost of replacing different fastening devices due to differences in connector 4 specifications.

[0071] like Figures 5-7 As shown, it illustrates a chair frame control panel in another embodiment of the present disclosure, where the extrusion surface 18 and the extrusion surface 18 merge to form an arc surface, which has the same arc surface profile as the end of the connector 4.

[0072] In some examples, since the first extrusion surface 18 and the second extrusion surface 20 merge to form an arc surface with the same arc contour as the end of the connector 4, they can fit tightly against the end of the connector 4. For example, if the end of the connector 4 is cylindrical and its outer surface is arc-shaped, then the arc surface formed by the merging of the first extrusion surface 18 and the second extrusion surface 20 is also adapted to the outer surface of the cylinder. During the fastening process, just like two semicircles tightly wrapping around a cylinder, the connector 4 is squeezed and fixed in all directions. When using the chair frame operation panel, no matter how the damper 2 drives the screen body 5 to rotate, the connector 4 can be firmly held in the connecting sleeve 9 due to the tight fit between the fastening component 8 and the end of the connector 4, and there will be no shaking or falling off.

[0073] For example, such as Figure 7 As shown, the advantages of this design are: enhanced fastening stability: the close fit to the arcuate contour of the connector 4 maximizes the contact area between the extrusion surface 18 and the extrusion surface 20 and the connector 4. Compared to non-fitting arcuate surfaces, the larger contact area can distribute pressure more evenly, avoiding deformation or loosening of the connector 4 at the fastening point due to uneven local stress. This significantly enhances the stability of the connection between the connector 4 and the connecting sleeve 9, ensuring reliable operation of the control panel in various usage scenarios. Reduced stress concentration: the fitted arcuate contour effectively prevents stress concentration at certain points or local areas of the connector 4 during fastening. Stress concentration may lead to excessive wear or even damage to the connector 4, while this close fit design distributes pressure evenly on the arcuate surface of the connector 4, extending the service life of the connector 4 and improving the durability of the fastening assembly 8 itself, reducing failures caused by stress problems.

[0074] like Figures 5-7 As shown, a chair frame control panel is shown in another embodiment of the present disclosure. The first limiting member 17 has a threaded hole 21, and the second limiting member 19 has a through hole 22. The threaded hole 21 and the through hole 22 are connected. The side wall of the groove 15 also has a limiting groove 23, which is located below the opening 16. The second limiting member 19 also has a limiting part 24, which moves within the limiting groove 23. The fastening assembly 8 also includes a rotating member 25 threadedly disposed in the threaded hole 21. The rotating member 25 rotates relative to the second limiting member 19, and the top end of the rotating member 25 extends out from the top of the threaded hole 21.

[0075] In some examples, the rotating component 25 is first assembled sequentially with the first limiting component 17 and the second limiting component 19, and then the entire assembly is placed into the groove 15. The first limiting component 17 is fixed to the top of the groove 15, and the limiting portion 24 of the second limiting component 19 is embedded in the limiting groove 23 on the side wall of the groove 15, so that the second limiting component 19 can move in a specific direction within the limiting groove 23. The external thread of the rotating component 25 and the internal thread of the threaded hole 21 of the first limiting component 17 are mutually engaged. When the rotating component 25 rotates relative to the second limiting component 19, due to the restriction of the limiting portion 24 of the second limiting component 19 within the limiting groove 23, the second limiting component 19 can only move along the direction of the limiting groove 23 and will not rotate with the rotating component 25. The second limiting component 19 can follow the rotating component 25 by relying on the frictional force between it and the rotating component 25.

[0076] For example, such as Figure 7 As shown, the advantages of this design are: **Simple Operation:** Tightening and loosening of the connector 4 can be achieved simply by rotating the rotating part 25, without the need for complex tools or cumbersome procedures. In a medical environment, medical staff or maintenance personnel can quickly assemble, disassemble, and maintain the control panel, improving work efficiency and saving time. **Enhanced Structural Stability:** The cooperation between the limiting part 24 and the limiting groove 23 of the limiting part 29 prevents the limiting part 29 from rotating during the pushing process of the rotating part 25, ensuring that the pressing surface 20 can move accurately towards the pressing surface 18, making the fastening process more stable and reliable. Simultaneously, this structural design enhances the stability of the entire fastening assembly 8, reducing the risk of connection failure due to component loosening or displacement. **Easy Maintenance and Repair:** The simple operation method facilitates the maintenance and repair of the fastening assembly 8. If the fastening assembly 8 malfunctions, such as due to thread wear, the rotating part 25 can be easily unscrewed from the threaded hole 21 for replacement or repair, reducing maintenance costs and difficulty. Compact structural design: The threaded hole 21, through hole 22, limiting groove 23 and other structures are integrated on the limiting part 17, limiting part 29 and groove 15. The overall structure is compact and achieves efficient fastening function in a limited space without taking up too much extra space. This is conducive to the compactness and rational layout of the overall structure of the operating panel.

[0077] like Figures 5-7 As shown, a chair frame control panel is shown in another embodiment of the present disclosure. The end of the rotating member 25 extends from the bottom of the through hole 22. The fastening assembly 8 further includes: a handwheel 26 disposed at the top of the rotating member 25; and a locking member 27 disposed at the end of the rotating member 25 for driving the second limiting member 19 closer to the first limiting member 17.

[0078] In some examples, when it is necessary to tighten the connector 4, the operator holds the handwheel 26 on the chair frame control panel fastening assembly 8. For example, turning the handwheel 26 clockwise causes the rotating member 25 to rotate as it is positioned at the top. The rotating member 25 moves axially upward during rotation through a threaded engagement with the threaded hole 21 of the limiting member 17. The end of the rotating member 25 extends out of the bottom of the through hole 22 and is provided with a retainer 27. As the rotating member 25 moves upward, the retainer 27 drives the limiting member 29 to move in the limiting groove 23 toward the limiting member 17. The pressing surface 20 of the limiting member 29 gradually approaches the pressing surface 18 of the limiting member 17, and finally the two merge, tightly pressing the connector 4 and firmly fixing it inside the connecting sleeve 9.

[0079] For example, such as Figure 7 As shown, the advantages of this design are: convenient and efficient operation: the handwheel 26 makes turning the rotating component 25 easy and effortless. Operators can quickly adjust the tightness or looseness of the fastening assembly 8 on the connecting component 4 by simply turning the handwheel 26 without the need for additional complex tools. This is especially important in medical settings, saving operating time for medical staff or maintenance personnel and improving work efficiency. Easy maintenance: this structural design makes maintaining the fastening assembly 8 more convenient. If components such as the handwheel 26, the locking element 27, or the rotating component 25 are damaged, they can be directly disassembled and replaced without large-scale disassembly of the entire fastening assembly 8, reducing maintenance costs and difficulty.

[0080] like Figures 5-7 As shown, a chair frame control panel is shown in another embodiment of the present disclosure. An elastic member 28 acts at one end on the bottom of the groove 15 and at the other end on the bottom of the second limiting member 19, for providing a force to the second limiting member 19 away from the first limiting member 17.

[0081] In some examples, when it is necessary to loosen the connector 4, first turn the handwheel 26 to move the rotating part 25 downward, so that the locking part 27 disengages from the limiting part 2 19. At this time, the elastic part 28, which was originally in a stretched state, begins to play its role. One end of the elastic part 28 abuts against the bottom of the groove 15, and the other end abuts against the bottom of the limiting part 2 19. The elastic potential energy stored in it is released, generating a downward pulling force, which pulls the limiting part 2 19 along the limiting groove 23 in a direction away from the limiting part 1 17. As a result, the pressing surface 20 and the pressing surface 18 gradually separate, and the connector 4 is no longer compressed, so it can be easily taken out from the connecting sleeve 9.

[0082] For example, such as Figure 7As shown, the advantages of this design are: Automatic reset function: After the external fastening force (such as the thrust of the rotating part 25) is released, the elastic element 28 automatically pushes the second limiting element 19 away from the first limiting element 17, restoring the fastening assembly 8 to the loosened state. This facilitates the next operation on the connector 4, eliminating the need to manually move the second limiting element 19 back to its initial position, thus simplifying the operation process. Convenient disassembly: When disassembling the connector 4, the reverse force provided by the elastic element 28 helps to quickly separate the first pressing surface 18 and the second pressing surface 20, reducing the force required by the operator during disassembly and lowering the operational difficulty. This is especially true in multiple disassembly operations, significantly reducing the operator's burden. Protection of connector 4: The elastic element 28 acts as a buffer during the fastening process. When the second limiting element 19 approaches the first limiting element 17 and presses against the connector 4 under external force, the elastic element 28 can prevent the second limiting element 19 from exerting excessive instantaneous impact on the connector 4, preventing damage to the connector 4 due to excessive compression, thereby extending the service life of the connector 4.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. Chair frame operating panel for being arranged on a machine panel (1), characterized in that The operation disc comprises: a damper (2) arranged in the instrument disc (1), the damper (2) having a rotating end (3) rotating oppositely; a connecting piece (4) connected to the rotating end (3) at one end; a screen main body (5) arranged at one side of the damper (2), the other end of the connecting piece (4) being connected to the screen main body (5).

2. The chair frame operating plate according to claim 1, wherein The damper (2) further has a fixed end (6), and the operation disc further comprises: a mounting plate (7) arranged in the instrument disc (1), the fixed end (6) being arranged on the mounting plate (7).

3. The chair frame operating plate according to claim 1, wherein The operation disc further comprises: a fastening assembly (8); a connecting sleeve (9) arranged on the rotating end (3), one end of the connecting piece (4) being fixed in the connecting sleeve (9) through the fastening assembly (8).

4. The chair frame operating plate according to claim 1, wherein The screen main body (5) comprises: a screen lower shell (10); a fixing plate (11) arranged in the screen lower shell (10), the other end of the connecting piece (4) being arranged on the fixing plate (11).

5. The chair frame operating plate according to claim 4, wherein The screen main body (5) further comprises: a screen upper shell (12) detachably arranged on the screen lower shell (10); a display screen (13) arranged in the screen upper shell (12).

6. The chair frame operating plate according to claim 3, wherein The fastening assembly (8) comprises: a main body (14) arranged on the connecting sleeve (9), the main body (14) having a recess (15), the recess (15) having an opening (16) on the side wall, the recess (15) being in communication with the inside of the connecting sleeve (9) through the opening (16); a limiting piece one (17) fixedly arranged at the top of the recess (15), having a pressing surface one (18), the pressing surface one (18) being located in the inside of the connecting sleeve (9); a limiting piece two (19) movably arranged in the recess (15), located at one side of the limiting piece one (17), the limiting piece two (19) having a pressing surface two (20), the limiting piece two (19) being arranged to, after moving, make the pressing surface two (20) and the pressing surface one (18) merge to clamp the connecting piece (4), or make the pressing surface two (20) and the pressing surface one (18) cancel the merging to release the connecting piece (4).

7. The chair frame operating plate according to claim 6, wherein The pressing surface one (18) and the pressing surface one (18) after merging form an arc surface, which has the same arc profile as the end of the connecting piece (4).

8. The chair frame operating plate according to claim 6, wherein The limiting piece one (17) has a threaded hole (21), the limiting piece two (19) has a through hole (22), the threaded hole (21) and the through hole (22) are in communication, the recess (15) further has a limiting groove (23) on the side wall, the limiting groove (23) being located below the opening (16), the limiting piece two (19) further has a limiting part (24), the limiting part (24) being movable in the limiting groove (23), and the fastening assembly (8) further comprises: a rotating piece (25) threadedly arranged in the threaded hole (21), the rotating piece (25) rotating relative to the limiting piece two (19), the top end of the rotating piece (25) extending out of the top of the threaded hole (21).

9. The chair frame operating plate according to claim 8, wherein, The end of the rotating member (25) extends from the bottom of the through hole (22), and the fastening assembly (8) further comprises: a hand wheel (26) arranged at the top end of the rotating member (25); a clamping member (27) arranged at the end of the rotating member (25) and used for driving the second limiting member (19) to be close to the first limiting member (17).

10. The chair frame operating plate according to claim 6, wherein The fastening assembly (8) further comprises: a resilient member (28) acting on the bottom of the groove (15) at one end and acting on the bottom of the second limiting member (19) at the other end, and used for providing a force for the second limiting member (19) to be away from the first limiting member (17).

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