A support mechanism for a medical image workstation graphics accelerator card

Abstract

This invention relates to the field of medical equipment technology, specifically to a support mechanism for a graphics accelerator card in a medical imaging workstation. The mechanism includes a workbench with a display mounted on its upper end and a cabinet door on its back. The graphics accelerator card and a support assembly are installed inside the workbench. The support assembly supports the graphics accelerator card and includes a base rod and a telescopic rod. A rectangular groove is formed at the upper end of the base rod. By installing shock-absorbing units at the far ends of the base rod and the telescopic rod, the shock-absorbing units can absorb the vibration energy transmitted to the base rod and the telescopic rod, reducing the vibration transmitted to the graphics accelerator card through the rigid base rod and the telescopic rod. This prevents poor contact and fretting wear between the graphics accelerator card and the slot, reducing the risk of equipment downtime caused by signal transmission interruptions and eliminating signal loss due to poor contact. This ensures the operational reliability of medical imaging equipment and improves the accuracy of medical diagnosis.

Description

Technical Field

[0001] This invention relates to the field of medical equipment technology, specifically to a support mechanism for a graphics accelerator card in a medical image workstation. Background Technology

[0002] A graphics accelerator card, also known as a graphics processor, is a computer expansion device specifically designed for optimized graphics processing. Its core working logic is to take over the CPU's graphics computing load through a built-in dedicated graphics processing chip. In conjunction with supporting components such as video memory and digital-to-analog converters, it enables high-speed access and format conversion of medical image data. By embedding hardware drawing instructions and medical-specific drivers adapted to the DICOM standard graphics library, it can independently complete high-frequency operations such as coordinate system transformation, grayscale / pseudocolor rendering, and lesion annotation rasterization of medical images. It is the core computing power component of a medical imaging workstation.

[0003] With the popularization of functions such as 3D image reconstruction and AI-assisted diagnosis, the computing power demand of high-performance medical graphics accelerator cards is growing exponentially. At the same time, they are facing technical challenges such as rising power consumption and soaring heat generation. Accompanying this is a significant increase in hardware size and weight. Therefore, additional support structures are needed to fix the graphics accelerator card inside the chassis to avoid problems such as graphics card sagging, poor contact of PCI slots, or even breakage of slot metal contacts caused by continuous gravity pulling during long-term use. To meet the dust and radiation protection requirements of radiology departments, operating rooms, and other similar settings, existing medical workstations typically have very compact internal spaces. Due to the continuous micro-vibrations generated by the high-speed cooling fans of the workstations, and the lack of vibration buffering capacity in traditional rigid support structures, the vibrations are directly transmitted to the graphics accelerator card through the traditional rigid support structure, causing poor contact between the graphics accelerator card and the slot. Since medical settings have extremely high requirements for image stability, even slight poor contact can lead to artifacts in CT / MRI images, directly affecting diagnostic accuracy. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a support mechanism for a graphics accelerator card in a medical imaging workstation. This mechanism solves the problem that continuous micro-vibrations generated by the high-speed cooling fan of the workstation are directly transmitted to the graphics accelerator card through a rigid support structure, causing poor contact between the graphics accelerator card and the slot. Since medical settings have extremely high requirements for image stability, even slight contact problems can lead to artifacts in CT / MRI images, directly affecting diagnostic accuracy.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a support mechanism for a graphics accelerator card in a medical image workstation, comprising a workbench, a display mounted on the upper end of the workbench, a cabinet door mounted on the back of the workbench, and a graphics accelerator card and a support assembly installed inside the workbench, the support assembly being used to support the graphics accelerator card; The support assembly includes a base rod and a telescopic rod. A rectangular groove is provided at the upper end of the base rod. The telescopic rod is slidably connected in the rectangular groove. A rack is fixedly connected to one side of the telescopic rod. A pawl is rotatably installed on the side wall of the base rod. The pawl engages with the rack. The base rod is slidably connected to an installation cylinder, a support rod is rotatably connected to one side of the installation cylinder, a support rod is rotatably connected to the end of the support rod away from the installation cylinder, a support plate is installed on the upper end of the support rod, a U-shaped groove is opened at the upper end of the installation cylinder, a U-shaped block is fixedly connected to the side wall of the support rod, and the U-shaped block is slidably connected in the U-shaped groove. A locking unit is installed on the side wall of the mounting cylinder, and the locking unit is used to fix the mounting cylinder to the surface of the base rod; A shock-absorbing unit is installed at the ends of the base rod and the telescopic rod that are far apart from each other. The shock-absorbing unit is used to reduce the transmission of vibration.

[0006] By adopting the above technical solution, and installing shock-absorbing units at the far ends of the base rod and telescopic rod, the shock-absorbing units can absorb the vibration energy transmitted to the base rod and telescopic rod. This reduces the vibration transmitted to the graphics accelerator card through the rigid base rod and telescopic rod, preventing poor contact and fretting wear between the graphics accelerator card and the slot. This reduces the risk of equipment downtime caused by signal transmission interruption, eliminates signal loss caused by poor contact, ensures the operational reliability of medical imaging equipment, and improves the accuracy of medical diagnosis.

[0007] Preferably, the shock absorption unit includes two shock absorption columns. A first groove is provided at the end of the bottom rod away from the telescopic rod, and a second groove is provided at the end of the telescopic rod away from the bottom rod. The two shock absorption columns are slidably and sealingly connected in the first groove and the second groove, respectively. The mounting cylinder has a through groove on its side wall. A first airbag is slidably connected in the through groove of the mounting cylinder. The first airbag is connected to a first groove through a first spring hose. A second spring hose is provided in the rectangular groove of the bottom rod. One end of the second spring hose is connected to the first groove, and the other end is connected to the second groove. A compression assembly is installed on the side wall of the mounting cylinder, which is used to compress the No. 1 airbag.

[0008] Preferably, the compression assembly includes a pressure plate, which is fixedly connected to the upper end of the first airbag and slidably connected in the through groove. A guide wheel is rotatably mounted on the side wall of the mounting cylinder, and a steel wire rope is fixedly connected to the lower end of the pressure plate. The end of the steel wire rope away from the pressure plate passes through the guide wheel and is connected to the support rod.

[0009] Preferably, the shock-absorbing column is made of fluororubber material, and a shock-absorbing cavity is formed inside the shock-absorbing column.

[0010] Preferably, the upper surface of the support plate is provided with a groove, and a locking rod is slidably connected in the groove of the support plate. The locking rod is connected to the groove wall of the groove by a connecting spring.

[0011] Preferably, a suction cup is installed on the upper surface of the support plate, a second airbag is installed in the groove of the support plate, one end of the second airbag is connected to the clamping rod, the other end is connected to the inner wall of the groove, the connecting spring is installed inside the second airbag, and the second airbag is in communication with the suction cup.

[0012] Preferably, the end of the lever furthest from the slide groove is rotatably connected to an inclined block, and the inclined block is rotatably connected to the lever via a torsion spring.

[0013] Preferably, the upper surface of the support plate is provided with a cylindrical groove, the suction cup is slidably and sealingly connected in the cylindrical groove, the inside of the support plate is provided with an annular groove communicating with the cylindrical groove, a sealing ring is slidably and sealingly connected in the annular groove, the sealing ring is fixedly connected to the suction cup, the side wall of the groove of the support plate is provided with an oil cavity communicating with the annular groove, an inclined plate is slidably and sealingly connected in the oil cavity, the inclined plate is connected to the bottom of the oil cavity by a support spring, and the second airbag is communicating with the cylindrical groove.

[0014] Preferably, the locking unit includes a locking rod, which is threaded to the outer wall of the mounting cylinder. The inner wall of the mounting cylinder has a square groove, and a pressing block is slidably connected in the square groove. The pressing block is rotatably connected to the locking rod.

[0015] Preferably, the end of the abutment block away from the locking rod has a V-shaped groove.

[0016] Working principle: Before installing the graphics accelerator card, first place the base rod and telescopic rod into the worktable. The base rod contacts the bottom of the worktable through the shock-absorbing column installed at the lower end. Then pull the telescopic rod. During the upward movement of the telescopic rod, the telescopic rod drives the rack to rise. The tooth end of the rack pushes the pawl to swing outward to make way for the rack. After the telescopic rod drives the shock-absorbing column installed at the upper end to contact the upper end of the worktable, the pawl automatically rebounds under the action of the torsion spring's restoring force and locks into the tooth groove of the rack, forming a reverse locking structure. After completing the installation of the base rod and telescopic rod, move the support plate away from the mounting cylinder. This will cause the support plate to rotate outward synchronously with the support rods at both ends. The support rods will pull the pressure plate downward through the wire rope, causing the pressure plate to squeeze the No. 1 airbag. This will cause the hydraulic oil in the No. 1 airbag to flow into the No. 1 groove and the No. 2 groove through the No. 1 spring hose. This will cause the shock absorber columns in the No. 1 groove and the No. 2 groove to extend out. The shock absorber column in the No. 1 groove will press against the bottom of the workbench, and the shock absorber column in the No. 2 groove will press against the top of the workbench. When the distance between one end of the support rod connected to the support plate and the mounting cylinder exceeds the natural length of the support rod, stop applying force, flip the support plate upward, so that the support plate drives the support rod to rotate synchronously to a horizontal state, so that the U-shaped block at the end of the support rod is aligned with the upper position of the mounting cylinder, continue to lift the support rod upward, and pull the support rod towards the mounting cylinder so that the U-shaped block is aligned with the U-shaped groove opening, press the U-shaped block into the U-shaped groove, at this time the support rod, the support rod, and the mounting cylinder together form a stable right-angled triangular support structure; Before placing the graphics accelerator card on the horizontal support plate, first rotate the inclined block so that it rotates downwards. Then place the graphics accelerator card on the support plate, and then pull the inclined block to drive the card rod out of the slide groove. The card rod squeezes the hydraulic oil in the oil chamber through the inclined plate into the annular groove and pushes the suction cup upwards, so that the suction cup smoothly lifts the graphics accelerator card above. Continue pulling the lever, the lever extending from the slide groove stretches the second airbag inside the slide groove, and because the suction cup is in contact with the lower end of the graphics accelerator card's outer shell, the suction cup can adhere to the lower end of the graphics accelerator card's outer shell. After the graphics accelerator card is installed, the operator raises the support rod to the specified height and then rotates the locking rod, causing the locking rod to push the abutment block in the square groove to abut against the side wall of the bottom rod, thereby fixing the height of the installation cylinder.

[0017] This invention provides a support mechanism for a graphics accelerator card in a medical imaging workstation. It has the following beneficial effects: 1. This invention installs shock-absorbing units at the far ends of the base rod and telescopic rod, enabling these units to absorb the vibration energy transmitted to the base rod and telescopic rod. This reduces the vibration transmitted to the graphics accelerator card through the rigid base rod and telescopic rod, preventing poor contact and fretting wear between the graphics accelerator card and the slot. This reduces the risk of equipment downtime caused by signal transmission interruption and eliminates signal loss due to poor contact, ensuring the operational reliability of medical imaging equipment and improving the accuracy of medical diagnosis.

[0018] 2. This invention utilizes a height-adjustable support structure design to adjust the installation height of the graphics accelerator card, positioning it in a position optimally matched with the heat dissipation duct. This ensures smooth airflow through the graphics accelerator card's heat dissipation fins, significantly reducing the risk of overheating and system crashes during high-load operation and improving the long-term stability of the equipment. Furthermore, the flexible height adjustment function allows for dynamic adjustment of the graphics accelerator card's position based on the internal wiring requirements of the workbench, reserving more ample wiring space below and reducing interference between the wiring and the heat dissipation module, resulting in a more organized and orderly internal layout.

[0019] 3. This invention creates a damping cavity inside the damping column, allowing the hydraulic oil inside to flow within the damping cavity under the action of vibration force. This allows the hydraulic oil to dissipate micro-vibration energy through its own viscous damping, while the turbulence generated during the flow further offsets the impact kinetic energy. This cuts off the transmission path of vibration to the supporting structure from the source, ensuring the stable operation of medical imaging equipment and improving the accuracy of medical diagnosis.

[0020] 4. This invention, through the cooperation of the clamp and the inclined plate, creates a uniform gap between the graphics accelerator card and the support plate. On the one hand, the reserved gap provides a smooth flow path for heat dissipation airflow, preventing heat accumulation at the bottom of the graphics accelerator card and improving its heat dissipation efficiency. On the other hand, the reduced contact area between the rising graphics accelerator card and the support plate reduces the transmission of vibration energy to the graphics accelerator card. Furthermore, the suction cup is made of a flexible material, which further reduces the transmission of vibration energy and ensures the stability of the graphics accelerator card connection. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the workbench of the present invention; Figure 3 This is a three-dimensional structural diagram of the support component of the present invention; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a rear view of the support component of the present invention; Figure 6 This is a partial structural diagram of the base rod of the present invention; Figure 7 for Figure 6 Enlarged structural diagram at point B; Figure 8 for Figure 6 Enlarged structural diagram at point C; Figure 9 This is a schematic diagram of the three-dimensional structure of the support plate of the present invention; Figure 10 for Figure 9Enlarged structural diagram at point D; Figure 11 This is a partial structural diagram of the support plate of the present invention; Figure 12 for Figure 11 Enlarged structural diagram at point E; The components include: 1. Workbench; 101. Monitor; 102. Cabinet door; 2. Base rod; 201. Telescopic rod; 202. Rectangular groove; 203. Rack; 204. Pawl; 205. Shock absorber column; 206. Groove No. 1; 207. Groove No. 2; 208. Shock absorber cavity; 3. Mounting cylinder; 301. U-shaped groove; 302. U-shaped block; 303. Through groove; 304. Airbag No. 1; 305. Spring hose No. 1; 306. Spring hose No. 2; 307. Pressure plate. 308. Guide wheel; 309. Steel wire rope; 310. Support rod; 4. Support rod; 401. Support plate; 402. Slide groove; 403. Locking rod; 404. Connecting spring; 405. Suction cup; 406. No. 2 airbag; 407. Inclined block; 408. Columnar groove; 409. Annular groove; 410. Sealing ring; 5. Oil cavity; 501. Inclined plate; 502. Support spring; 6. Locking rod; 601. Square groove; 602. Anchoring block; 603. V-groove. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 -Appendix Figure 12 This invention provides a support mechanism for a graphics accelerator card in a medical image workstation, including a workbench 1, a display 101 mounted on the upper end of the workbench 1, a cabinet door 102 mounted on the back of the workbench 1, and a graphics accelerator card and a support assembly installed inside the workbench 1. The support assembly is used to support the graphics accelerator card. The support assembly includes a base rod 2 and a telescopic rod 201. A rectangular groove 202 is provided at the upper end of the base rod 2. The telescopic rod 201 is slidably connected in the rectangular groove 202. A rack 203 is fixedly connected to one side of the telescopic rod 201. A pawl 204 is rotatably installed on the side wall of the base rod 2. The pawl 204 meshes with the rack 203. A mounting cylinder 3 is slidably connected to the surface of the base rod 2. A support rod 4 is rotatably connected to one side of the mounting cylinder 3. A support rod 310 is rotatably connected to the end of the support rod 4 away from the mounting cylinder 3. A support plate 401 is installed on the upper end of the support rod 310. A U-shaped groove 301 is opened at the upper end of the mounting cylinder 3. A U-shaped block 302 is fixedly connected to the side wall of the support rod 310. The U-shaped block 302 is slidably connected in the U-shaped groove 301. A locking unit is installed on the side wall of the mounting cylinder 3. The locking unit is used to fix the mounting cylinder 3 to the surface of the base rod 2. A shock-absorbing unit is installed at the far end of the base rod 2 and the telescopic rod 201. The shock-absorbing unit is used to reduce the transmission of vibration.

[0024] Specifically, in the design of professional medical imaging workstations (such as image reading stations and surgical navigation workstations), the host and workbench 1 generally adopt a highly integrated solution: the motherboard, power supply, storage module, and other core hardware are directly embedded in the internal frame of workbench 1, eliminating the need for a separate chassis and becoming an inseparable organic component of workbench 1, fully adaptable to the strict disinfection and dust protection requirements of medical scenarios. Based on this architecture, the graphics accelerator card built into workbench 1 is directly physically connected to the host's onboard interface via an adapter cable; Before installing the graphics accelerator card, first install the support assembly inside the workbench 1. First, open the cabinet door 102 on the back of the workbench 1 and insert the two sets of base rods 2 into the workbench 1, ensuring that the end of the base rod 2 with the shock-absorbing unit is in contact with the bottom layer of the workbench 1 (the two sets of base rods 2 are placed against the side wall of the workbench 1, saving space inside the workbench 1 and avoiding the need to occupy the regular space of the core functional area, thus improving the utilization rate of the internal space of the workbench 1). Then, pull the telescopic rod 201, causing it to extend out of the rectangular slot 202 and continuously approach the top layer of the workbench 1. As the telescopic rod 201 rises, it drives the side wall rack 203 in tandem. As the telescopic rod rises, because one side of the mounting cylinder 3 is hinged to a pawl 204 by a torsion spring, under normal conditions, the pawl 204 is engaged with the rack 203 under the preload of the torsion spring. Therefore, when the rack 203 rises, the tooth end of the rack 203 will push the pawl 204 to overcome the torsion spring torque and swing outward to make way for the rack 203 until the telescopic rod 201 drives the upper shock absorption unit to contact the top layer of the worktable 1. At this time, the pawl 204 automatically rebounds under the reset force of the torsion spring and re-engages into the tooth groove of the rack 203, forming a reverse locking structure, thereby directly blocking the rack 203 from moving downward and preventing the telescopic rod 201 from falling back under its own weight. In the initial state, the support rod 4 is tightly fitted to the outer wall of the mounting cylinder 3. The connection between the mounting cylinder 3, the support rod 4, and the support rod 310 all adopt a rotating sealing structure, which has a large rotational damping. The mounting cylinder 3, the support rod 4, and the support rod 310 are rotatably connected, so that the support rod 4 and the support rod 310 can be folded during transportation, which not only shortens the space required for transportation, but also avoids collision deformation and improves transportation safety. In use, the operator moves the support plate 401 away from the mounting cylinder 3, causing the support plate 401 to drive the two hinged support rods 4 at both ends to rotate outward synchronously. When the distance between the end of the support rod 4 connected to the support plate 401 and the mounting cylinder 3 exceeds the natural length of the support rod 310, the force can be stopped. At this time, the downward component of the gravity of the inclined support rod 4 is less than the rotational damping of the support rod 4 and the mounting cylinder 3, thus stabilizing the inclined posture of the support rod 4. Then, the support plate 401 is flipped upward, causing the support plate 401 to drive the support rod 310 to rotate synchronously to a horizontal state, so that the support rod 310... The U-shaped block 302 at the end is aligned with the upper part of the mounting cylinder 3. At this time, the support rod 310 drives the support plate 401 to be located on one side of the mounting cylinder 3. Continue to lift the support rod 310 upward, so that the support rod 310 drives the U-shaped block 302 to pass over the U-shaped groove 301 at the top of the mounting cylinder 3. Then pull the support rod 4 towards the mounting cylinder 3 so that the U-shaped block 302 is aligned with the groove opening of the U-shaped groove 301. Press the U-shaped block 302 downward so that it is completely inserted into the U-shaped groove 301. At this time, the support rod 310 remains horizontal and together with the support rod 4 and the mounting cylinder 3, forms a stable right-angled triangular support structure. The operator then places the graphics accelerator card on the support plate 401, so that the support plate 401 supports the graphics accelerator card. Then, the operator lifts the support rod 4 upward, so that the support rod 4 can drive the mounting cylinder 3 to rise and fall vertically along the bottom rod 2. This causes the mounting cylinder 3 to drive the graphics accelerator card on the support plate 401 to move synchronously, thereby adjusting the height of the graphics accelerator card in the worktable 1. Because medical imaging workstations are highly integrated devices with compact internal spaces and dense wiring, the adjustable support structure design allows for several advantages. First, during maintenance operations such as installing, replacing, or cleaning graphics accelerator cards, the support structure can be lowered to its lowest position to allow for installation and fixation of the graphics accelerator card in the area with the most ample operating space. Then, it can be raised to the target installation height, completely preventing the arm from bumping into delicate components such as the motherboard and storage modules while working in the confined and dense internal space. This significantly reduces the difficulty of operation and effectively reduces the risk of hardware scratches and interface damage. Second, the flexible height adjustment function can dynamically adjust the position of the graphics accelerator card according to the internal wiring requirements of the workbench 1, leaving more space for wiring below, reducing interference between the wiring and the heat dissipation module, and making the internal layout more organized and orderly. In addition, there are significant differences in heat dissipation efficiency at different heights inside workbench 1, and the installation positions of the heat dissipation modules of different workstation models are different. By adjusting the installation height of the graphics accelerator card, the graphics accelerator card can be adjusted to the optimal position for matching the heat dissipation airflow, ensuring that the airflow passes smoothly through the heat dissipation fins of the graphics accelerator card, significantly reducing the risk of overheating and shutdown when the graphics accelerator card is running under high load, and improving the long-term stability of the equipment. Since the high-speed cooling fan of the workstation generates continuous micro-vibrations, this invention addresses this by installing vibration damping units at the far ends of the base rod 2 and the telescopic rod 201. These damping units absorb the vibration energy transmitted to the base rod 2 and the telescopic rod 201, reducing the vibration transmitted to the graphics accelerator card through the rigid base rod 2 and the telescopic rod 201. This prevents poor contact and micro-wear between the graphics accelerator card and the slot, reduces the risk of equipment downtime caused by signal transmission interruption, eliminates signal loss due to poor contact, ensures the operational reliability of medical imaging equipment, and improves the accuracy of medical diagnosis.

[0025] Please see the appendix Figure 1 -Appendix Figure 8 The shock absorption unit includes two shock absorption columns 205. The bottom rod 2 has a first groove 206 at the end away from the telescopic rod 201, and the telescopic rod 201 has a second groove 207 at the end away from the bottom rod 2. The two shock absorption columns 205 are slidably and sealedly connected in the first groove 206 and the second groove 207 respectively. The side wall of the mounting cylinder 3 has a through groove 303. A first airbag 304 is slidably connected in the through groove 303 of the mounting cylinder 3. The first airbag 304 is connected to the first groove 206 through the first spring hose 305. A second spring hose 306 is provided in the rectangular groove 202 of the bottom rod 2. One end of the second spring hose 306 is connected to the first groove 206, and the other end is connected to the second groove 207. A compression assembly is installed on the side wall of the mounting cylinder 3. The compression assembly is used to compress the first airbag 304.

[0026] The compression assembly includes a pressure plate 307, which is fixedly connected to the upper end of the first airbag 304. The pressure plate 307 is slidably connected in the through groove 303. A guide wheel 308 is rotatably mounted on the side wall of the mounting cylinder 3. A steel wire rope 309 is fixedly connected to the lower end of the pressure plate 307. The end of the steel wire rope 309 away from the pressure plate 307 passes through the guide wheel 308 and is connected to the support rod 4.

[0027] The shock absorber column 205 is made of fluororubber material, and a shock absorber cavity 208 is opened inside the shock absorber column 205.

[0028] Specifically, when installing the base rod 2 and the telescopic rod 201 inside the workbench 1, the base rod 2 contacts the bottom end of the workbench 1 through the shock-absorbing column 205 installed at its lower end. Then, the telescopic rod 201 is pulled, causing the shock-absorbing column 205 installed at its upper end to contact the upper end of the workbench 1. After the installation of the base rod 2 and the telescopic rod 201 is completed, the operator moves the support plate 401 away from the mounting cylinder 3, causing the support plate 401 to drive the two hinged support rods 4 at both ends to rotate outward synchronously. The rotating support rods 4 can pull the connected steel wire rope 309, which in turn can pull the pressure plate 307 connected at the other end to slide downward along the through groove 303. This causes the pressure plate 307 to compress the first airbag 304 connected below, thus compressing the first airbag 304. Since the first airbag 304 is filled with hydraulic oil, when the first airbag 304 is compressed, the hydraulic oil in the first airbag 304 flows into the first groove 206 through the first spring hose 305 connected to the lower end. This allows the hydraulic oil entering the first groove 206 to push the shock absorber 205 at the lower end of the base rod 2 out of the first groove 206. Since the shock absorber 205 is in contact with the bottom end of the worktable 1, and because the shock absorber 205 is made of fluororubber, it has good elasticity. Therefore, when pushed by the hydraulic oil pressure, the shock absorber 205 can undergo reversible deformation, causing the shock absorber 205 in the first groove 206 to be pushed by the hydraulic oil and pressed against the bottom end of the worktable 1, thus increasing the friction between the shock absorber 205 in the first groove 206 and the bottom end of the worktable 1. Since the first groove 206 and the second groove 207 are connected by the second spring hose 306, during the process of the hydraulic oil in the first airbag 304 flowing into the first groove 206, a portion of the hydraulic oil flowing into the first groove 206 will flow into the second groove 207 through the second spring hose 306. This allows the hydraulic oil entering the second groove 207 to push the shock absorber 205 in the second groove 207 out of the second groove 207 and press against the upper end of the worktable 1, thereby increasing the friction between the shock absorber 205 in the second groove 207 and the top of the worktable 1, and thus increasing the stability of the bottom rod 2 and the telescopic rod 201 in the worktable 1. By opening a damping cavity 208 inside the damping column 205, the damping cavity 208 of the damping column 205 in the first groove 206 is connected to the first groove 206, and the damping cavity 208 of the damping column 205 in the second groove 207 is connected to the second groove 207. Therefore, during the process of filling the first groove 206 and the second groove 207 with hydraulic oil, the hydraulic oil will fill the damping cavity 208 inside the damping column 205. When the high-speed cooling fan of the workstation is running, the continuous micro-vibrations generated by the high-speed cooling fan will be transmitted to the damping column 205 through the inner wall of the worktable 1. Under the action of the vibration force, the hydraulic oil in the damping chamber 208 will flow in the damping chamber 208. The hydraulic oil dissipates the micro-vibration energy through the viscosity damping of the fluid itself. At the same time, the turbulence effect generated during the flow process further offsets the impact kinetic energy, cuts off the transmission path of vibration to the support structure from the source, ensures the stable operation of the medical imaging equipment, and improves the accuracy of medical diagnosis.

[0029] Please see the appendix Figure 9 -Appendix Figure 12 The upper surface of the support plate 401 is provided with a sliding groove 402, and a locking rod 403 is slidably connected in the sliding groove 402 of the support plate 401. The locking rod 403 is connected to the groove wall of the sliding groove 402 by a connecting spring 404.

[0030] A suction cup 405 is installed on the upper surface of the support plate 401. A second airbag 406 is installed in the slide groove 402 of the support plate 401. One end of the second airbag 406 is connected to the clamping rod 403, and the other end is connected to the inner wall of the slide groove 402. A connecting spring 404 is installed inside the second airbag 406. The second airbag 406 is connected to the suction cup 405.

[0031] The end of the lever 403 furthest from the slide groove 402 is rotatably connected to a wedge block 407, which is rotatably connected to the lever 403 via a torsion spring.

[0032] A cylindrical groove 408 is provided on the upper surface of the support plate 401. The suction cup 405 is slidably and sealingly connected in the cylindrical groove 408. An annular groove 409 communicating with the cylindrical groove 408 is provided inside the support plate 401. A sealing ring 410 is slidably and sealingly connected in the annular groove 409. The sealing ring 410 is fixedly connected to the suction cup 405. An oil cavity 5 communicating with the annular groove 409 is provided on the side wall of the sliding groove 402 of the support plate 401. An inclined plate 501 is slidably and sealingly connected in the oil cavity 5. The inclined plate 501 is connected to the bottom of the oil cavity 5 by a support spring 502. The second airbag 406 is connected to the cylindrical groove 408.

[0033] Specifically, before placing the graphics accelerator card on the horizontal support plate 401, if the length of the graphics accelerator card is greater than the length of the support plate 401, the operator needs to first pull the inclined block 407, so that the inclined block 407 drives the clamping rod 403 to stretch the connecting spring 404 and extend out of the slide groove 402, so that the inclined block 407 moves away from the bottom rod 2 until the distance between the inclined block 407 and the side wall of the worktable 1 is greater than the length of the graphics accelerator card. At this time, the graphics accelerator card is placed on the support plate 401, and the clamping rod 403 is released. At this time, the clamping rod 403 moves into the slide groove 402 under the pull of the restoring force of the connecting spring 404 until the inclined block 407 of the clamping rod 403 contacts the graphics accelerator card and presses the graphics accelerator card between the inclined block 407 and the side wall of the worktable 1, so that the graphics accelerator card is firmly clamped on the support plate 401. Before the operator pulls the lever 403 out of the slide groove 402, the inclined block 407 is rotated to overcome the torsion spring. After the inclined block 407 rotates downwards, the graphics accelerator card is placed on the support plate 401. At this time, the inclined block 407 will not obstruct the graphics accelerator card. Then, the inclined block 407 is pulled, and it extends out of the slide groove 402 through the lever 403. The end of the lever 403 near the bottom of the slide groove 402 pushes the inclined plate 501 into the oil chamber 5 through the inclined surface of the inclined plate 501. The inclined plate 501 squeezes the hydraulic oil in the oil chamber 5 into the annular groove 409. The hydraulic oil entering the annular groove 409 pushes the sealing ring 410 in the annular groove 409 to rise. Since the sealing ring 410 is connected to the suction cup 405, the sealing ring 410 can drive the suction cup 405. Simultaneously moving upwards, the suction cup 405 extends out of the cylindrical groove 408, making the suction cup 405 contact the lower end face of the graphics accelerator card's outer shell. At this time, as the lever 403 continues to extend out of the slide groove 402, the lever 403 extending out of the slide groove 402 stretches the second airbag 406 inside the slide groove 402. Since the second airbag 406 is connected to the suction cup 405 through the cylindrical groove 408, when the second airbag 406 extends, the space inside the second airbag 406 increases, generating negative pressure inside the second airbag 406. This allows external gas to enter the cylindrical groove 408 through the suction cup 405. Since the suction cup 405 is in contact with the lower end face of the graphics accelerator card's outer shell, the suction cup 405 can adsorb the lower end of the graphics accelerator card's outer shell, allowing the suction cup 405 to stabilize the graphics accelerator card above the support plate 401 through negative pressure adsorption. This invention utilizes the cooperation of the clamping rod 403 and the inclined plate 501 to compress the hydraulic oil in the oil chamber 5 through the inclined plate 501. The pressurized hydraulic oil then flows into the annular groove 409 and pushes the suction cup 405 upward, ultimately lifting the graphics accelerator card smoothly. This creates a uniform gap between the graphics accelerator card and the support plate 401. On one hand, the reserved gap provides a smooth flow path for heat dissipation airflow, preventing heat accumulation at the bottom of the graphics accelerator card and improving its heat dissipation efficiency. On the other hand, the reduced contact area between the rising graphics accelerator card and the support plate 401 reduces the transmission of vibration energy to the graphics accelerator card. Furthermore, the suction cup 405 is made of a flexible material, which further reduces the transmission of vibration energy and ensures the stability of the graphics accelerator card connection.

[0034] Please see the appendix Figure 7 The locking unit includes a locking rod 6, which is threaded to the outer wall of the mounting cylinder 3. A square groove 601 is provided on the inner wall of the mounting cylinder 3. A pressing block 602 is slidably connected in the square groove 601. The pressing block 602 is rotatably connected to the locking rod 6.

[0035] The end of the clamping block 602 away from the locking rod 6 has a V-groove 603.

[0036] Specifically, the operator raises the support rod 4, causing the mounting cylinder 3 to move vertically up and down along the base rod 2. This causes the mounting cylinder 3 to move synchronously with the graphic accelerator card on the support plate 401. After the graphic accelerator card is adjusted to the specified height within the worktable 1, the operator rotates the locking rod 6, causing it to rotate spirally and enter the square groove 601. This pushes the abutment block 602 out of the square groove 601, creating a V-shaped groove 603 in the abutment block 602. One end extends out of the square groove 601 and contacts the outer wall of the base rod 2, so that the clamping block 602 is pressed against the outer wall of the base rod 2 under the push of the locking rod 6. By setting a V-shaped groove 603 at the end of the clamping block 602 away from the square groove 601, the surface friction coefficient of the clamping block 602 is increased, thereby increasing the static friction between the clamping block 602 and the outer wall of the base rod 2. This prevents the mounting cylinder 3 from slipping and falling back under its own weight and the load's gravity, thus ensuring the long-term stability of the shock-absorbing support height.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A support mechanism for a graphics accelerator card in a medical imaging workstation, comprising a workbench (1), a display (101) mounted on the upper end of the workbench (1), a cabinet door (102) mounted on the back of the workbench (1), and a graphics accelerator card and a support assembly installed inside the workbench (1), the support assembly being used to support the graphics accelerator card, characterized in that: The support assembly includes a base rod (2) and a telescopic rod (201). The upper end of the base rod (2) is provided with a rectangular groove (202). The telescopic rod (201) is slidably connected in the rectangular groove (202). A rack (203) is fixedly connected to one side of the telescopic rod (201). A pawl (204) is rotatably installed on the side wall of the base rod (2). The pawl (204) meshes with the rack (203). The bottom rod (2) is slidably connected to the surface of the mounting cylinder (3), and a support rod (4) is rotatably connected to one side of the mounting cylinder (3). A support rod (310) is rotatably connected to the end of the support rod (4) away from the mounting cylinder (3). A support plate (401) is installed on the upper end of the support rod (310). A U-shaped groove (301) is opened at the upper end of the mounting cylinder (3). A U-shaped block (302) is fixedly connected to the side wall of the support rod (310). The U-shaped block (302) is slidably connected in the U-shaped groove (301). A locking unit is installed on the side wall of the mounting cylinder (3), and the locking unit is used to fix the mounting cylinder (3) to the surface of the base rod (2); A shock-absorbing unit is installed at one end of the base rod (2) and the telescopic rod (201) that is far apart from each other. The shock-absorbing unit is used to reduce the transmission of vibration.

2. The support mechanism for a medical imaging workstation graphics accelerator card according to claim 1, characterized in that: The shock absorption unit includes two shock absorption columns (205). The bottom rod (2) has a first groove (206) at one end away from the telescopic rod (201), and the telescopic rod (201) has a second groove (207) at one end away from the bottom rod (2). The two shock absorption columns (205) are slidably and sealingly connected in the first groove (206) and the second groove (207), respectively. The mounting cylinder (3) has a through groove (303) on its side wall. A first airbag (304) is slidably connected in the through groove (303) of the mounting cylinder (3). The first airbag (304) is connected to the first groove (206) through a first spring hose (305). A second spring hose (306) is provided in the rectangular groove (202) of the bottom rod (2). One end of the second spring hose (306) is connected to the first groove (206), and the other end is connected to the second groove (207). A compression assembly is installed on the side wall of the mounting cylinder (3), which is used to compress the first airbag (304).

3. The support mechanism for a medical imaging workstation graphics accelerator card according to claim 2, characterized in that: The compression assembly includes a pressure plate (307), which is fixedly connected to the upper end of the first airbag (304). The pressure plate (307) is slidably connected in the through groove (303). A guide wheel (308) is rotatably installed on the side wall of the mounting cylinder (3). A steel wire rope (309) is fixedly connected to the lower end of the pressure plate (307). The end of the steel wire rope (309) away from the pressure plate (307) passes through the guide wheel (308) and is connected to the support rod (4).

4. The support mechanism for a medical imaging workstation graphics accelerator card according to claim 3, characterized in that: The shock-absorbing column (205) is made of fluororubber material, and a shock-absorbing cavity (208) is provided inside the shock-absorbing column (205).

5. The support mechanism for a medical imaging workstation graphics accelerator card according to claim 1, characterized in that: The upper surface of the support plate (401) is provided with a sliding groove (402), and a locking rod (403) is slidably connected in the sliding groove (402) of the support plate (401). The locking rod (403) is connected to the groove wall of the sliding groove (402) by a connecting spring (404).

6. The support mechanism for a medical imaging workstation graphics accelerator card according to claim 5, characterized in that: A suction cup (405) is installed on the upper surface of the support plate (401). A second airbag (406) is installed in the groove (402) of the support plate (401). One end of the second airbag (406) is connected to the clamping rod (403), and the other end is connected to the inner wall of the groove (402). The connecting spring (404) is installed inside the second airbag (406). The second airbag (406) is connected to the suction cup (405).

7. The support mechanism for a medical imaging workstation graphics accelerator card according to claim 6, characterized in that: The end of the lever (403) away from the slide groove (402) is rotatably connected to an inclined block (407), which is rotatably connected to the lever (403) via a torsion spring.

8. The support mechanism for a medical imaging workstation graphics accelerator card according to claim 7, characterized in that: The upper surface of the support plate (401) is provided with a cylindrical groove (408), and the suction cup (405) is slidably and sealedly connected in the cylindrical groove (408). The inside of the support plate (401) is provided with an annular groove (409) communicating with the cylindrical groove (408). A sealing ring (410) is slidably and sealedly connected in the annular groove (409). The sealing ring (410) is fixedly connected to the suction cup (405). The side wall of the sliding groove (402) of the support plate (401) is provided with an oil cavity (5) communicating with the annular groove (409). An inclined plate (501) is slidably and sealedly connected in the oil cavity (5). The inclined plate (501) is connected to the bottom of the oil cavity (5) by a support spring (502). The second airbag (406) is connected to the cylindrical groove (408).

9. The support mechanism for a medical imaging workstation graphics accelerator card according to claim 1, characterized in that: The locking unit includes a locking rod (6), which is threaded to the outer wall of the mounting cylinder (3). A square groove (601) is provided on the inner wall of the mounting cylinder (3). A pressing block (602) is slidably connected in the square groove (601), and the pressing block (602) is rotatably connected to the locking rod (6).

10. The support mechanism for a medical image workstation graphics accelerator card according to claim 9, characterized in that: The end of the clamping block (602) away from the locking rod (6) is provided with a V-groove (603).

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