A server rack with built-in lifting device

Abstract

This invention discloses a server rack with a built-in lifting device, relating to the technical field of server rack equipment. It includes a rack body, within which a vertically movable bracket and a lifting mechanism for driving the vertical displacement of the bracket are installed. The lifting mechanism includes a first guide rail, vertically installed inside the rack body. A first slider is slidably connected to the first guide rail, and a first support plate is fixedly connected to the side of the first slider. A bracket is installed between two first support plates. Four slings arranged in a matrix are installed inside the rack body. A winding mechanism is installed at the top of the rack body, and the bottom ends of the slings are fixedly connected to the first support plates. The lifting mechanism incorporates four high-strength aluminum alloy first guide rails (two on each side), which, in conjunction with the slider and support plates, ensure stable vertical movement of the bracket and prevent tilting. The carbon fiber slings and rigid guide rails work together to share the load and prevent single-point failure risks, improving safety.

Description

Technical Field

[0001] This invention relates to the field of server rack equipment technology, specifically a server rack with a built-in lifting device. Background Technology

[0002] With the rapid development of cloud computing, big data, and artificial intelligence technologies, data centers are placing higher demands on the space utilization, maintainability, and security of server racks. Traditional server racks typically use a fixed bracket design, requiring manual handling or external lifting equipment for server installation and maintenance. This is not only inefficient but also poses safety hazards, especially in high-density deployment scenarios, where manual operation can easily lead to equipment damage or personnel injury.

[0003] In existing technologies, some server racks use simple lifting structures, such as hydraulic or chain drives, but these suffer from problems such as insufficient guiding accuracy, uneven load distribution, and poor stability, making it difficult to meet the installation requirements of precision servers. Furthermore, traditional lifting mechanisms often rely on single-point drives; if a malfunction occurs, the rack may tilt or even fall, seriously affecting equipment safety. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a server rack with a built-in lifting device. Through innovative designs such as high-precision guidance + dual-protection lifting, multi-level translation adjustment, intelligent clamping and centering, and safety limit, it significantly improves the efficiency, safety and flexibility of server installation and maintenance.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A server rack with a built-in lifting device includes a rack body, a vertically movable bracket, and a lifting mechanism for driving the vertical displacement of the bracket. The lifting mechanism includes four first guide rails, which are vertically installed on the left and right side walls inside the rack body. At least one first slider is slidably connected to each first guide rail. A first support plate is fixedly connected to the side of each pair of adjacent first sliders. A bracket is installed between the two first support plates. The bracket is used to support the server host. Four slings are arranged in a matrix inside the rack body. A winding mechanism for synchronously winding the four slings is installed at the top of the rack body. The bottom end of the slings is fixedly connected to the first support plate. After the winding mechanism winds the slings, it drives the first sliders to move vertically along the first guide rails to adjust the distance between the bracket and the ground.

[0007] Preferably, the winding mechanism includes a first box body, which is fixedly connected to the top of the cabinet. The first box body has a first through hole at each of the four corners of its bottom, and a guide wheel is installed at each of the four first through holes. A rotatable winding drum is installed on each of the two sides inside the first box body. The sling passes through the first through hole and the guide wheel and is connected to the winding drum. A connecting shaft is connected between the two winding drums. The two ends of the connecting shaft are connected to the inside of the first box body through bearing components. A bidirectional drive motor for synchronously driving the rotation of the left and right winding drums is installed inside the first box body.

[0008] Preferably, ball screws are vertically installed on the left and right sides inside the cabinet. The two ends of the ball screws are connected to the inner wall of the cabinet through bearing seats. Each ball screw is threaded with a ball nut. The ball nut is fixedly connected to the first support plate. A height adjustment auxiliary mechanism for synchronously driving the two ball screws to rotate is installed at the bottom of the cabinet.

[0009] Preferably, the height adjustment auxiliary mechanism includes a second housing, which is fixed to the bottom of the cabinet. A synchronous pulley is installed at one end of each of the left and right ball screws that enter the interior of the second housing. A synchronous belt connects the two synchronous pulleys. A first worm gear is installed at the end of either ball screw. A first worm gear meshing with the first worm gear is horizontally arranged inside the second housing. A first motor for driving the first worm gear to rotate is installed inside the second housing. A first handwheel is installed at one end of the first worm gear that extends out of the side of the second housing.

[0010] Preferably, the first support plate is provided with a primary horizontal pushing mechanism for driving the bracket to move back and forth along the Y-axis. The primary horizontal pushing mechanism includes a first base plate, which is fixedly connected to the side of the first support plate; a V-shaped guide rail, which is installed on the side of the first base plate; a roller mounting plate, which is located on the side of the V-shaped guide rail, with a rotatable V-shaped roller installed at each of the four corners of the side of the roller mounting plate, and the V-shaped rollers rollingly engaging with the V-shaped guide rail; a first housing, which covers the side of the first base plate and is fixedly connected to the first base plate, with a first guide groove horizontally opened on the side of the first housing; two symmetrically distributed first I-shaped brackets, one end of which is fixedly connected to the side of the roller mounting plate, and the other end of which extends through the first guide groove and is connected to the side of the bracket; and a horizontal pushing cylinder is installed on the side of the first base plate.

[0011] Preferably, a secondary pushing mechanism is provided between the first I-shaped bracket and the bracket, the secondary pushing mechanism being supported by the first I-shaped bracket and capable of pushing the bracket to move back and forth along the Y-axis direction.

[0012] Preferably, the secondary flat-push mechanism includes a second housing, a second cover plate detachably connected to the top of the second housing, a second guide groove opened on the side of the second housing, the second housing being fixedly connected to the side of the first I-shaped bracket, a screw and a first guide shaft arranged in parallel inside the second housing, a second motor for driving the screw to rotate being installed on the second housing, a second handwheel being installed at one end of the screw that protrudes from the second housing, an internally threaded sleeve being fitted on the screw, a slidable first sleeve being fitted on the first guide shaft, a second L-shaped bracket being provided inside the second housing, the bottom of the second L-shaped bracket being fixedly connected to the first sleeve and the internally threaded sleeve respectively, and one end of the second L-shaped bracket that protrudes from the second guide groove being fixedly connected to the side of the bracket.

[0013] Preferably, a centering clamping mechanism is provided below the bracket. The centering clamping mechanism includes a third housing, which is fixedly connected to the bottom of the bracket. Four second guide rails are symmetrically distributed inside the third housing. Each second guide rail is fixedly connected to the bottom of the third housing. A second slider is slidably connected to each second guide rail. A U-shaped clamping member is fixedly connected to two second sliders on the same side. A third guide groove is provided on the bracket for the centering displacement of the U-shaped clamping member. A connecting plate is connected between two second sliders on the same side. A driving mechanism for driving the connecting plate to center displacement is installed in the third housing.

[0014] Preferably, the driving mechanism is a bidirectional telescopic cylinder, which is installed at the center inside the third housing, and the telescopic rods at both ends of the bidirectional telescopic cylinder are respectively hinged to the corresponding connecting plates.

[0015] Preferably, the driving mechanism includes a concentric shaft rotatably connected to the center of the third housing, a rotating wheel and a second worm gear fixedly connected to the concentric shaft, a first connecting rod rotatably connected between the rotating wheel and the two connecting plates, a second worm gear meshing with the second worm gear inside the third housing, a third motor for driving the second worm gear to rotate inside the third housing, and a third handwheel installed at one end of the second worm gear that extends out of the third housing.

[0016] The beneficial effects of this invention are:

[0017] I. This device has a lifting function and uses four high-strength aluminum alloy first guide rails (two on each side), along with sliders and support plates, to ensure the vertical movement of the bracket is stable and prevent tilting. The carbon fiber slings (matrix distribution) work together with the rigid guide rails to share the load and prevent the risk of single-point failure, thus improving safety. The winding mechanism uses a bidirectional drive motor and a rigid connecting shaft to ensure that the four slings are wound and unwound synchronously, avoiding uneven force on the bracket. The ball screw and worm gear mechanism provides a self-locking function to prevent the load from slipping unexpectedly and supports manual adjustment in case of power failure.

[0018] II. Flexible multi-stage translation adjustment: The first-stage translation mechanism (Y-axis direction) adopts V-shaped guide rail + roller + translation cylinder to realize the smooth extension or retraction of the server, which is convenient for maintenance and installation. The second-stage translation mechanism (Y-axis fine adjustment) has a screw + guide optical shaft structure, which supports electric (motor drive) and manual (handwheel adjustment) modes, and is suitable for precision alignment or insertion and removal operations.

[0019] Third, it has a stable clamping and centering function. The centering clamping mechanism provides two driving methods: pneumatic solution (bidirectional telescopic cylinder): quick clamping, suitable for frequent adjustment scenarios; worm gear solution (motor / handwheel drive): strong self-locking, suitable for long-term fixed anti-loosening. The four guide rails + connecting plate design ensures that the clamping parts on both sides move synchronously and avoids server offset. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the winding mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the height adjustment auxiliary mechanism of the present invention;

[0023] Figure 4 This is a schematic diagram of the first-stage horizontal pushing mechanism of the present invention;

[0024] Figure 5 For the present invention Figure 4 A schematic diagram of the exploded structure;

[0025] Figure 6 This is a schematic diagram of the two-stage horizontal pushing mechanism of the present invention;

[0026] Figure 7 For the present invention Figure 6 A schematic diagram of the exploded structure;

[0027] Figure 8 This is a schematic diagram of the first centering clamping mechanism of the present invention;

[0028] Figure 9 This is a schematic diagram of the second centering clamping mechanism of the present invention;

[0029] Figure 10 This is a schematic diagram of the limiting mechanism of the present invention;

[0030] Figure 11 This is a schematic diagram of the internal structure of the third sleeve of the present invention;

[0031] In the diagram, 1. Cabinet; 2. Lifting mechanism; 21. Winding mechanism; 22. Lifting cable; 23. First guide rail; 24. First slider; 241. Flipping plate; 242. Slider body; 243. First receiving cavity; 25. First support plate; 211. First box; 2110. First through hole; 212. Guide wheel; 213. Bidirectional drive motor; 214. Winding spool; 215. Connecting shaft; 3. Height adjustment auxiliary mechanism; 31. Ball bearing. 32. Lead screw; 33. Ball nut; 34. Bearing housing; 35. First motor; 36. Synchronous pulley; 37. Synchronous belt; 38. First worm gear; 39. First handwheel; 310. Second housing; 4. First-stage horizontal pushing mechanism; 41. First base plate; 42. First housing; 421. First guide groove; 43. V-shaped guide rail; 44. V-shaped roller; 45. Horizontal pushing cylinder; 46. Roller mounting plate; 47. First I-beam bracket 5. Secondary horizontal pushing mechanism; 51. Second housing; 511. Second guide groove; 52. Second cover plate; 53. First guide shaft; 54. First sleeve; 55. Second handwheel; 56. Second L-shaped bracket; 57. Internal threaded sleeve; 58. Second motor; 59. Screw; 6. Centering clamping mechanism; 61. Third housing; 62. Second guide rail; 63. Second slider; 64. U-shaped clamping component; 65. Connecting plate; 661. Bidirectional Telescopic cylinder; 662, Rotary wheel; 663, First connecting rod; 664, Concentric shaft; 665, Second worm gear; 666, Second worm; 667, Third motor; 668, Third handwheel; 7, Bracket; 71, Third guide groove; 8, Limiting mechanism; 81, Third sleeve; 811, First cavity; 812, Second cavity; 82, First piston rod; 83, Second piston rod; 84, Spring; 85, Sealing ring; 86, Solenoid valve. Detailed Implementation

[0032] Example 1

[0033] like Figure 1 and Figure 2As shown, a server rack with a built-in lifting device is provided, including a rack 1. The rack 1 has a vertically movable bracket 7 and a lifting mechanism 2 for driving the vertical displacement of the bracket 7. The lifting mechanism 2 includes four first guide rails 23, two on each side. The two first guide rails 23 on the same side are vertically fixed to the side wall of the rack 1. The first guide rails 23 are made of high-strength aluminum alloy. At least one first slider 24 is slidably connected to each first guide rail 23. The first slider 24 cooperates with the first guide rail 23 for guidance. The two first guide rails 23 on each side of the rack 1 (a total of four) provide rigid guidance to ensure vertical movement accuracy. The sides of two adjacent first sliders 24 are fixedly connected to a first support plate 25 to form a stable frame structure, preventing the bracket 7 from tilting. The bracket 7 is installed between the two first support plates 25 on the left and right sides. The bracket 7 is used to support the server host. The cabinet 1 is equipped with four slings 22 arranged in a matrix. The slings 22 can be made of carbon fiber. There are two slings on each side and two on the same side located at the front and rear ends of the side of the first support plate 25. They are used to suspend the bracket 7 to ensure smooth lifting and lowering. The four slings 22 (matrix arrangement) are connected to the first support plate 25 to form a double protection, which not only distributes the load but also prevents the risk of single point failure. The top of the cabinet 1 is equipped with a winding mechanism 21 for synchronously winding the four slings 22. The winding mechanism 21 is embedded in the top of the cabinet and does not occupy the internal space of the cabinet, maintaining the appearance compatibility of the standard cabinet. The bottom end of the sling 22 is fixedly connected to the first support plate 25. The winding mechanism 21 winds... After the lifting cable 22 is wound around, the first slider 24 is moved vertically along the first guide rail 23 to adjust the distance between the bracket 7 and the ground. On the one hand, when installing the server in the cabinet from top to bottom, it reduces manual handling and makes the server installation work more stable and safe. In addition, when the lifting cable 22 is connected to the first support plate 25 on the side of each bracket 7, multiple brackets 7 can be moved up and down simultaneously. This facilitates the maintenance of the equipment after adjusting the height of the brackets 7. The winding mechanism 21 can simultaneously wind the four lifting cables 22. The winding mechanism 21 includes a first box 211, which is fixedly connected to the top of the cabinet 1. The four corners of the bottom of the first box 211 are provided with first through holes 2110. Four slings 22 are inserted and exited, and each of the four first through holes 2110 is equipped with a guide wheel 212. The guide wheels 212 are used for guidance and reduce friction and wear between the slings 22 and the through holes, thus extending their service life. Rotatable winding drums 214 are symmetrically installed on both sides inside the first housing 211. The two ends of the winding drums 214 are connected to the inside of the first housing 211 through bearing seats 33. The slings 22 pass through the first through holes 2110 and the guide wheels 212 and are then connected to the winding drums 214. A connecting shaft 215 is connected between the two winding drums 214. The two ends of the connecting shaft 215 are connected to the inside of the first housing 211 through bearing components. A bidirectional drive motor 213 is installed inside the first housing 211 for synchronously driving the rotation of the left and right winding drums 214.A bidirectional drive motor 213 achieves rigid linkage between the left and right winding drums 214 via a connecting shaft 215, ensuring complete synchronization of the winding and unwinding of the slings 22 on both sides. In use, the bidirectional drive motor 213, supported by the first housing 211, synchronously drives the left and right winding drums 214 to rotate via a timing belt 36, thereby winding the two slings 22 on the same side. This causes the first slider 24, connected to the first support plate 25, to slide vertically on the first guide rail 23, thus vertically moving the bracket 7 between the two first support plates 25. The distance between the bracket 7 and the ground is adjustable.

[0034] Example 2

[0035] like Figure 3 As shown, ball screws 31 are vertically installed on the left and right sides inside the cabinet 1. The ball screws 31 are fixedly connected to the inner wall of the cabinet 1 along the Z-axis. The two ends of the ball screws 31 can be supported on the inner wall of the cabinet 1 by bearing seats 33, ensuring that the ball screws 31 can only rotate and cannot move axially. Each ball screw 31 is threaded with a ball nut 32, which is fixedly connected to the first support plate 25 by bolts. When the ball screw 31 rotates, the ball nut 32 moves up and down along the Z-axis, driving the bracket 7 to rise and fall. The unit is equipped with a height adjustment auxiliary mechanism 3 for synchronously driving the rotation of two ball screws 31. The height adjustment auxiliary mechanism 3 includes a second housing 310, which is fixed to the bottom of the cabinet 1. A synchronous pulley 35 is installed at one end of each of the left and right ball screws 31 that passes through the second housing 310. A synchronous belt 36 connects the two synchronous pulleys 35. The bottom ends of the two ball screws 31 are linked through the synchronous pulleys 35 and the synchronous belt 36 to ensure that the left and right ball screws 31 rotate completely synchronously, preventing the bracket 7 from tilting. A first worm gear 37 is installed at the end of the screw 31. A first worm 38, which meshes with the first worm gear 37, is horizontally arranged inside the second housing 310. A first motor 34 for driving the first worm 38 to rotate is installed inside the second housing 310. The extended end of the first worm 38 protrudes from the side of the second housing 310 and is equipped with a first handwheel 39. The first worm gear 37 is installed at the end of one of the screws and meshes with the horizontal first worm 38 to form a self-locking reduction mechanism (to prevent the load from slipping). The worm is driven by the first motor 34, and the end of the worm extends... Extend the first handwheel 39 to support electric and manual dual-mode operation (manual adjustment is possible when power is off). During operation, start the first motor 34 to drive the first worm gear 38 to rotate, which in turn drives the first worm wheel 37 and the connected ball screw 31 to rotate. The ball screws 31 on both sides rotate synchronously through the synchronous belt 36, and the ball nut 32 moves along the axial direction of the ball screw 31, pushing the bracket 7 to rise and fall smoothly. When power is off, rotate the first handwheel 39 to manually drive the first worm gear 38 and the first worm wheel 37 to realize the rotation of the ball screw 31 and the adjustment of the position of the bracket 7.

[0036] Example 3

[0037] like Figure 4 and Figure 5 As shown, the first support plate 25 is equipped with a primary horizontal pushing mechanism 4 that drives the bracket 7 to move back and forth along the Y-axis. The primary horizontal pushing mechanism 4 is used to drive the bracket 7 to move horizontally along the Y-axis (back and forth direction), so that the server can be smoothly pushed out or retracted, facilitating maintenance or installation. The primary horizontal pushing mechanism 4 includes a first base plate 41, which is fixedly connected to the side of the first support plate 25; a V-shaped guide rail 43, which is installed on the side of the first base plate 41; and a roller mounting plate 46. 46 is located on the side of the V-shaped guide rail 43. A rotatable V-shaped roller 44 is installed at each of the four corners of the roller mounting plate 46. The V-shaped rollers 44 roll in cooperation with the V-shaped guide rail 43. The V-shaped guide rail 43 is fixed to the side of the first base plate 41, providing a high-rigidity guide rail. The V-shaped rollers 44 are installed at the four corners of the roller mounting plate 46, rolling in cooperation with the V-shaped guide rail 43 to ensure smooth movement and strong resistance to eccentric loads. A first housing 42 covers the side of the first base plate 41. The first housing 42 has... To effectively prevent dust from entering the precision guide rail area, the first housing 42 is fixedly connected to the first base plate 41. A first guide groove 421 is horizontally opened on the side of the first housing 42. Symmetrically distributed first I-shaped brackets 47 ensure even transmission of thrust and prevent the bracket 7 from tilting. One end of each first I-shaped bracket 47 is fixedly connected to the side of the roller mounting plate 46, and the other end of each first I-shaped bracket 47 extends through the first guide groove 421 and is connected to the side of the bracket 7. The first guide groove 421 restricts the movement path of the I-shaped brackets, ensuring... The Y-axis linear motion is achieved by a flat-push cylinder 45 mounted on the side of the first base plate 41. The flat-push cylinder 45 serves as the drive source, directly pushing the roller mounting plate 46 to move along the Y-axis. During the push-out process, the piston rod of the flat-push cylinder 45 extends, pushing the roller mounting plate 46 to slide forward along the V-shaped guide rail 43. The roller mounting plate 46 drives the bracket 7 to move forward synchronously through the first I-shaped bracket 47, realizing the server push-out. During the retraction process, the piston rod of the cylinder retracts, the roller mounting plate 46 moves backward, and the bracket 7 returns to the cabinet along with the I-shaped bracket.

[0038] like Figure 6 and Figure 7As shown, a secondary sliding mechanism 5 is provided between the first I-shaped bracket 47 and the bracket 7. The secondary sliding mechanism 5 uses the first I-shaped bracket 47 as a support base and can push the bracket 7 to move back and forth along the Y-axis. The secondary sliding mechanism 5 (fine displacement in the Y-axis direction) is an extension of the primary sliding mechanism 4 and is installed between the first I-shaped bracket 47 and the bracket 7 to realize the secondary fine translation of the bracket 7 (Y-axis direction). It is suitable for scenarios that require multi-level adjustment or precise positioning (such as server plugging and unplugging, maintenance alignment). The secondary sliding mechanism 5 includes a second housing 51. A second cover plate 52 is detachably connected to the top of the second housing 51. The enclosed structure protects the internal transmission components, is dustproof and safe. A second guide groove 511 is opened on the side of the second housing 51. The second guide groove 511 restricts the movement path of the L-shaped bracket to ensure strict movement along the Y-axis direction. The second housing 51 is fixedly connected to the side of the first I-shaped bracket 47. A screw 59 and a first guide optical axis 53 are arranged parallel inside the second housing 51. A drive screw 59 is installed in the second housing 51 to rotate. A second handwheel 55 is installed at one end of the second motor 58 and the screw 59 extending out of the second housing 51. An internally threaded sleeve 57 is fitted onto the screw 59, and the screw 59 and the internally threaded sleeve 57 are threadedly engaged, converting the rotational motion of the screw 59 into linear motion. A sliding first sleeve 54 is fitted onto the first guide shaft 53, and the first sleeve 54 moves synchronously with the internally threaded sleeve 57. A second L-shaped bracket 56 is provided inside the second housing 51, and the bottom of the second L-shaped bracket 56 is fixedly connected to the internally threaded sleeve 57 and the first sleeve 54. A rigid linkage is formed, and the second guide groove 511 is connected to the bracket 7 on the side, pushing the bracket 7 to move back and forth. In electric mode: the second motor 58 is started, driving the screw 59 to rotate → the internal threaded sleeve 57 drives the second L-shaped bracket 56 to translate along the optical axis → the bracket 7 is finely adjusted in position, and the first sleeve 54 slides on the first guide optical axis 53 to eliminate the lateral force of the screw 59 transmission and ensure stability. In manual mode (when power is off or fine adjustment is needed), the second handwheel 55 is rotated to manually rotate the screw 59 to adjust the position of the bracket 7.

[0039] Example 4

[0040] like Figure 8 and Figure 9As shown, a centering clamping mechanism 6 is provided below the bracket 7. Located below the bracket 7, the centering clamping mechanism 6 is used for bidirectional synchronous clamping of the server equipment, ensuring it is centered and fixed on the bracket 7 to prevent displacement during transportation or lifting. The design includes two schemes: pneumatic drive and worm gear drive. The centering clamping mechanism 6 includes a third housing 61, which is fixedly connected to the bottom of the bracket 7. Four second guide rails 62 are symmetrically distributed inside the third housing 61, providing high-rigidity sliding tracks. Each second guide rail 62 is fixedly connected to the bottom of the third housing 61, and a second slider 63 is slidably connected to each second guide rail 62. Two second sliders 63 on the same side... A U-shaped clamping member 64 is fixedly connected to block 63. A third guide groove 71 is provided on bracket 7 for the U-shaped clamping member 64 to center and move. Four guide rails are symmetrically fixed to the bottom of the third housing 61 to provide a high-rigidity sliding track. A slider is slidably connected to each guide rail. Two sliders on the same side fix the U-shaped clamping member 64 and extend out through the third guide groove 71 of bracket 7 to clamp the side of the server. A connecting plate 65 is connected between the two second sliders 63 on the same side. The design of four guide rails + connecting plate 65 ensures that the clamping members on both sides have consistent displacement, avoids off-center load, and achieves synchronous movement. A drive mechanism for driving the connecting plate 65 to center and move is installed in the third housing 61.

[0041] The first driving method: The driving mechanism is a bidirectional telescopic cylinder 661. The bidirectional telescopic cylinder 661 is installed at the center inside the third housing 61. The telescopic rods at both ends of the bidirectional telescopic cylinder 661 are respectively hinged to the corresponding connecting plates 65. The bidirectional telescopic cylinder 661 is installed in the center, and the telescopic rods at both ends are hinged to the connecting plates 65, directly pushing the U-shaped clamping piece 64 to center or separate synchronously.

[0042] The second driving method: The driving mechanism includes a concentric shaft 664 rotatably connected to the center of the third housing 61. A rotating wheel 662 and a second worm gear 665 are fixedly connected to the concentric shaft 664. A first connecting rod 663 is rotatably connected between the rotating wheel 662 and the two connecting plates 65. A second worm 666 meshing with the second worm gear 665 is provided inside the third housing 61. A third motor 667 for driving the rotation of the second worm 666 is provided inside the third housing 61. A third handwheel 668 is installed at one end of the second worm 666 that protrudes from the third housing 61. The third motor 667 drives the second worm 666, which in turn drives the second worm gear 665 to rotate the concentric shaft 664. The rotating wheel 662 pulls the connecting plate 65 to move in the center through the first connecting rod 663. Alternatively, the second worm 666 can be manually driven by rotating the third handwheel 668 to achieve clamping adjustment. The second worm 666 and the second worm gear 666 scheme have strong self-locking properties and are suitable for long-term fixed environments that require prevention of loosening.

[0043] Example 5

[0044] like Figure 10 and Figure 11As shown, a limiting mechanism 8 is provided between two adjacent first sliders 24. This limiting mechanism 8 can quickly lock the first slider 24 onto the first guide rail 23 to limit the bracket 7 from falling and becoming unbalanced, thus playing a safety limiting role. The limiting mechanism 8 includes a third sleeve 81, which has two cavities (i.e., the first cavity 811 and the second cavity 812) and a piston rod that can slide left and right (i.e., the first piston rod 82 and the second piston rod 83) installed in each of the two cavities. The piston rod moves in and out of the left and right cavities to change the overall length of the limiting mechanism 8 (lengthening or shortening). To reduce gaps, a sealing ring 85 is designed between the end of each piston rod and the inner wall of the cavity. For example, a sealing ring 85 is fixedly installed at the ends of the first piston rod 82 and the second piston rod 83. The air pressure in the cavity between the two first piston rods 82 and the second piston rod 83 changes (increasing or decreasing pressure), adjusting the relative displacement of the first piston rod 82 and the second piston rod 83 in the cavity. A solenoid valve 86 is installed on the third sleeve 81. The solenoid valve 86 is divided into... Do not open or close the pressurization or negative pressure channel to drive the first piston rod 82 and the second piston rod 83 to move backward or towards each other. A spring 84 is designed in the cavity between the first piston rod 82 and the second piston rod 83. The two ends of the spring 84 abut against the side walls of the two piston rods. The corresponding two first sliders 24 are designed. The first slider 24 includes a slider body 242. A first receiving cavity 243 is opened on the slider body 242. The first receiving cavity 243 allows the first guide rail 23 to pass through. A flip plate 241 is hinged to the side of the slider body 242 to limit the movement of the first guide rail 23. The limiting mechanism 8 is supported by the first support plate 25. When the body of the limiting mechanism 8 extends or shortens, it drives the flip plate 241 to flip, thereby changing the frictional resistance between the flip plate 241 and the side wall of the first guide rail 23. When the external monitoring facility detects abnormal falling speed data, the monitoring facility (control equipment or PLC controller) controls the solenoid valve 86 to open the pressurization channel, causing the first piston rod 82 and the second piston rod 83 to extend outward, tightly pressing the flip plate 241 against the side of the guide rail, which plays the role of stopping or reducing the falling speed too fast.

Claims

1. A server rack with a built-in lifting device, characterized in that, The system includes a cabinet (1), which is equipped with a vertically movable bracket (7) and a lifting mechanism (2) for driving the bracket (7) to move vertically. The lifting mechanism (2) includes a first guide rail (23), of which four first guide rails (23) are provided. The four first guide rails (23) are vertically installed on the left and right side walls inside the cabinet (1). At least one first slider (24) is slidably connected to each first guide rail (23). A first support plate (25) is fixedly connected to the side of each two adjacent first sliders (24). A bracket (7) is installed between the two first support plates (25). The bracket (7) is used to support the server host. The cabinet (1) is equipped with four slings (22) arranged in a matrix. The top of the cabinet (1) is equipped with a winding mechanism (21) for synchronously winding the four slings (22). The bottom end of the slings (22) is fixedly connected to the first support plate (25). After the winding mechanism (21) winds the slings (22), it drives the first slider (24) to move vertically along the first guide rail (23) to adjust the distance between the bracket (7) and the ground. The winding mechanism (21) includes a first box (211), which is fixedly connected to the top of the cabinet (1). A first through hole (2110) is provided at each of the four corners of the bottom of the first box (211), and a guide wheel (212) is installed at each of the four first through holes (2110). A rotatable winding drum (214) is installed on each of the two sides inside the first box (211). The sling (22) passes through the first through hole (2110) and the guide wheel (212) and is connected to the winding drum (214). A connecting shaft (215) connects the two winding drums (214). The two ends of the connecting shaft (215) are connected by shafts. The support is connected inside the first box (211), and the first box (211) is equipped with a bidirectional drive motor (213) for synchronously driving the rotation of the two left and right winding drums (214); ball screws (31) are vertically installed on the left and right sides inside the cabinet (1), and the two ends of the ball screws (31) are connected to the inner wall of the cabinet (1) through bearing seats (33). Each ball screw (31) is threaded with a ball nut (32), and the ball nut (32) is fixedly connected to the first support plate (25). The bottom of the cabinet (1) is equipped with a height adjustment auxiliary mechanism (3) for synchronously driving the rotation of the two ball screws (31). The height adjustment auxiliary mechanism (3) includes a second housing (310), which is fixed to the bottom of the cabinet (1). A synchronous pulley (35) is installed at one end of each of the two ball screws (31) that pass through the interior of the second housing (310). A synchronous belt (36) is connected between the two synchronous pulleys (35). A first worm gear (37) is installed at the end of one of the ball screws (31). A first worm (38) that meshes with the first worm gear (37) is horizontally arranged inside the second housing (310). A first motor (34) for driving the first worm (38) to rotate is installed inside the second housing (310). A first handwheel (39) is installed at one end of the first worm (38) that passes through the side of the second housing (310).

2. A server rack with a built-in lifting device according to claim 1, characterized in that, The first support plate (25) is provided with a first-stage horizontal pushing mechanism (4) for the drive bracket (7) to move back and forth along the Y-axis. The first-stage horizontal pushing mechanism (4) includes a first base plate (41), which is fixedly connected to the side of the first support plate (25); a V-shaped guide rail (43), which is installed on the side of the first base plate (41); a roller mounting plate (46), which is located on the side of the V-shaped guide rail (43). A rotatable V-shaped roller (44) is installed at each of the four corners of the side of the roller mounting plate (46). The V-shaped roller (44) and the V-shaped guide rail (45) are connected to each other. The guide rail (43) is in rolling engagement; the first housing (42) covers the side of the first base plate (41), the first housing (42) is fixedly connected to the first base plate (41), and the side of the first housing (42) is horizontally provided with a first guide groove (421); two symmetrically distributed first I-shaped brackets (47), one end of the first I-shaped bracket (47) is fixedly connected to the side of the roller mounting plate (46), and one end of the first I-shaped bracket (47) is connected to the side of the bracket (7) through the first guide groove (421), and a flat push cylinder (45) is installed on the side of the first base plate (41).

3. A server rack with a built-in lifting device according to claim 2, characterized in that, A secondary push mechanism (5) is provided between the first I-shaped bracket (47) and the bracket (7). The secondary push mechanism (5) is supported by the first I-shaped bracket (47) and can push the bracket (7) to move back and forth along the Y-axis.

4. A server rack with a built-in lifting device according to claim 3, characterized in that, The secondary push mechanism (5) includes a second housing (51), a second cover plate (52) is detachably connected to the top of the second housing (51), a second guide groove (511) is provided on the side of the second housing (51), the second housing (51) is fixedly connected to the side of the first I-shaped bracket (47), a screw (59) and a first guide optical shaft (53) are arranged parallel inside the second housing (51), and a second motor (58) for driving the screw (59) to rotate is installed in the second housing (51). A second handwheel (55) is installed at one end of the second housing (51), an internal threaded sleeve (57) is fitted on the screw (59), a slidable first sleeve (54) is fitted on the first guide shaft (53), a second L-shaped bracket (56) is provided inside the second housing (51), the bottom of the second L-shaped bracket (56) is fixedly connected to the first sleeve (54) and the internal threaded sleeve (57) respectively, and one end of the second L-shaped bracket (56) that passes through the second guide groove (511) is fixedly connected to the side of the bracket (7).

5. A server rack with a built-in lifting device according to claim 3, characterized in that, A centering clamping mechanism (6) is provided below the bracket (7). The centering clamping mechanism (6) includes a third housing (61). The third housing (61) is fixedly connected to the bottom of the bracket (7). Four second guide rails (62) are symmetrically distributed inside the third housing (61). Each second guide rail (62) is fixedly connected to the bottom of the third housing (61). A second slider (63) is slidably connected to each second guide rail (62). A U-shaped clamping member (64) is fixedly connected to the two second sliders (63) on the same side. A third guide groove (71) is provided on the bracket (7) for the centering displacement of the U-shaped clamping member (64). A connecting plate (65) is connected between the two second sliders (63) on the same side. A driving mechanism for driving the connecting plate (65) to center displacement is installed in the third housing (61).

6. A server rack with a built-in lifting device according to claim 5, characterized in that, The driving mechanism is a bidirectional telescopic cylinder (661), which is installed at the center inside the third housing (61). The telescopic rods at both ends of the bidirectional telescopic cylinder (661) are respectively hinged to the corresponding connecting plates (65).

7. A server rack with a built-in lifting device according to claim 5, characterized in that, The driving mechanism includes a concentric shaft (664) rotatably connected to the center of the third housing (61). A rotating wheel (662) and a second worm gear (665) are fixedly connected to the concentric shaft (664). A first connecting rod (663) is rotatably connected between the rotating wheel (662) and the two connecting plates (65). A second worm (666) meshing with the second worm gear (665) is provided inside the third housing (61). A third motor (667) for driving the second worm (666) to rotate is provided inside the third housing (61). A third handwheel (668) is installed at one end of the second worm (666) that protrudes from the third housing (61).

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