Liquid cooling server cabinet

Abstract

The invention belongs to the technical field of server cabinets, particularly relates to a liquid-cooled server cabinet, and aims to solve the problem that an existing liquid-cooled server cabinet lacks an effective liquid leakage detection measure, and provides the following scheme: the liquid-cooled server cabinet comprises a cabinet body; the upper side of the annular frame is in contact with the bottom of the cabinet body, and the bottom of the annular frame is fixedly connected with a bearing disc; the bottom of the annular rail is fixedly connected with the upper side of the bearing disc, and the annular rail is located below the cabinet body; and the circular track detection module is located outside the circular track. According to the liquid-cooled server cabinet disclosed by the invention, comprehensive cooling liquid leakage points of the cabinet body can be detected and positioned in the use process of the cabinet body, so that the sealing performance of the cabinet body is ensured, and the cooling liquid in the cabinet body can effectively cool a running server; the cooling effect of the cabinet body is improved, and the use performance of the cabinet body is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of server cabinets, and in particular to a liquid-cooling server cabinet. Background Art

[0002] Liquid-cooled server cabinets are a highly efficient cooling technology that uses liquid as a heat dissipation medium. They are mainly divided into three types: immersion liquid cooling, cold plate liquid cooling, and spray liquid cooling. They can significantly reduce data center energy consumption, improve heat dissipation efficiency, and extend equipment life.

[0003] Liquid-cooled server cabinets may experience surface aging or widening of joint spacing over long-term use, leading to coolant leakage. Existing liquid-cooled server cabinets lack effective leakage detection measures, resulting in the loss of coolant used to cool the server, increasing costs and having a significant impact on the normal operation of the server. Summary of the Invention

[0004] The present invention discloses a liquid cooling server cabinet, which aims to solve the technical problem in the background art that the existing liquid cooling server cabinet lacks effective leakage detection measures.

[0005] The present invention provides a liquid-cooled server cabinet, comprising:

[0006] Cabinet body;

[0007] An annular frame, wherein the upper side of the annular frame contacts the bottom of the cabinet body, and the bottom of the annular frame is fixedly connected to a supporting tray;

[0008] An annular rail, the bottom of which is fixedly connected to the upper side of the supporting tray, and the annular rail is located below the cabinet body;

[0009] The ring rail detection module is located outside the ring rail and outside the cabinet body. The ring rail detection module is used to detect and locate coolant leakage points on the cabinet body during use of the cabinet body.

[0010] The transmission gear of the present invention is a gear selected from the group consisting of a gearbox and a gear train, and a gear train is connected with the gear train by a gear selector, a gear train is connected with the gear train at the top and a gear train is connected with the gear train at the bottom. The second push-pull plate is movably connected to the second push-pull plate, and the end of the second push-pull plate away from the first push-pull plate is movably connected to the outside of the fixed ring, and a torsion spring is wrapped around the outside of the round rod, one end of the torsion spring is fixedly connected to the outside of the second push-pull plate, and the other end is fixedly connected to the outside of the first push-pull plate; a circular hole is opened on the fixed ring, and a hydraulic rod 2 is fixedly connected in the circular hole. The output end of the hydraulic rod 2 is fixedly connected to the rotating seat, and the rotating seat is movably connected with a circular shaft. The outside of the circular shaft is fixedly connected to the mounting platform. The outside of the rotating seat is fixedly connected to the second motor, and the output of the second motor is fixedly connected. The end is connected to one side of the circular shaft through a coupling, and a high-definition camera and a high-pressure fan are arranged on the mounting platform; the transmission block is fixedly connected to a convex seat on one side close to the rotating seat, and a winding roller is movably connected to the convex seat, and a wire rope is fixedly connected to the outside of the winding roller, and the end of the wire rope away from the winding roller is fixedly connected to the outside of the fixed ring, and the outside of the convex seat is fixedly connected to motor three, and the output end of motor three is connected to one side of the winding roller through a coupling, and a stabilization module is arranged at the bottom of the cabinet body, and the stabilization module is located outside the annular frame.

[0011] In a preferred embodiment, the stabilization module includes three equidistantly distributed connecting blocks, the connecting blocks are fixedly connected to the side opposite to the annular frame, the connecting blocks are provided with hole grooves, the inner walls of the hole grooves are fixedly connected to the stabilization platform, the stabilization platform is plugged with a latch, the upper side of the latch is fixedly connected to the bottom of the cabinet body, and the bottom of the stabilization platform is provided with three circumferentially equidistantly distributed grooves; a locking rod is slidably connected in the plurality of the grooves, the bottom of the locking rod is fixedly connected to a short shaft, and the outside of the latch is provided with an annular groove, the inner wall of the annular groove is connected to the three lock rods on the same side The outside of the fixed rod is clamped; the outsides of the three latches are slidably connected to a rotating frame, the upper sides of the rotating frames are movably connected to the bottom of the stabilizing platform on the same side, and the rotating frames are provided with three curved grooves equidistantly distributed around the circumference, and the inner walls of the curved grooves are slidably connected to the outsides of the short shafts on the same side; the bottoms of the three rotating frames are fixedly connected to a handle bar, and the outsides of the rotating frames are provided with an annular frame, the upper sides of the annular frames are fixedly connected to the bottoms of the connecting blocks, and the outsides of the rotating frames are fixedly connected to a coil spring, and the ends of the coil springs away from the rotating frame are fixedly connected to the inner walls of the annular frame on the same side.

[0012] From the above, it can be seen that the liquid-cooled server cabinet provided by the present invention has the function of comprehensively detecting and locating the cooling liquid leakage points of the cabinet body during the use of the cabinet body, thereby ensuring the sealing of the cabinet body, ensuring that the cooling liquid in the cabinet body can effectively cool the running server, improving the cooling effect of the cabinet body, and ensuring the performance of the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a liquid-cooled server cabinet proposed by the present invention;

[0014] Figure 2 This is a schematic cross-sectional view of a liquid-cooled server cabinet proposed by the present invention;

[0015] Figure 3 This is a structural schematic diagram of a ring rail detection module for a liquid-cooled server cabinet proposed by the present invention;

[0016] Figure 4 This is a schematic diagram of the fixed plate structure of a liquid-cooled server cabinet proposed by the present invention;

[0017] Figure 5 This is a schematic diagram of the horizontal plate structure of a liquid-cooled server cabinet proposed by the present invention;

[0018] Figure 6 This is a schematic structural diagram of a mounting platform for a liquid-cooled server cabinet proposed by the present invention;

[0019] Figure 7 This is a schematic diagram of the stable module structure of a liquid-cooled server cabinet proposed by the present invention.

[0020] In the figure: 1, cabinet body; 2, tray; 3, ring rail; 4, ring frame; 5, ring rail detection module; 501, gear ring; 502, fixing plate; 503, motor 1; 504, gear; 505, mounting plate; 506, hydraulic rod 1; 507, rotating shaft; 508, linear motor; 509, transmission block; 510, transverse plate; 511, push-pull plate 1; 512, sliding slot;

[0021] 513, fixed ring; 514, hydraulic rod 2; 515, push-pull plate 2; 516, torsion spring;

[0022] 517, rotating seat; 518, mounting platform; 519, motor 2; 520, high-definition camera;

[0023] 521. High-pressure fan; 522. Boss; 523. Winding roller; 524. Wire rope; 525. Motor three; 6. Stabilization module; 601. Connecting block; 602. Stabilization platform; 603. Cutting groove; 604. Locking rod; 605. Short shaft; 606. Latch; 607. Annular groove; 608. Rotating frame; 609. Curved groove; 610. Handlebar; 611. Ring frame; 612. Coil spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] The liquid cooling server cabinet disclosed in the present invention is mainly used in scenarios where existing liquid cooling server cabinets lack effective leakage detection measures.

[0026] Reference Figure 1-7 , a liquid cooling server cabinet, comprising:

[0027] Cabinet body 1;

[0028] The annular frame 4 has its upper side in contact with the bottom of the cabinet body 1 and the bottom of the annular frame 4 is connected to the supporting tray 2 via bolts;

[0029] The bottom of the ring rail 3 is connected to the upper side of the tray 2 by bolts, and the ring rail 3 is located below the cabinet body 1;

[0030] The ring rail detection module 5 is located outside the ring rail 3 and outside the cabinet body 1. The ring rail detection module 5 is used to detect and locate coolant leakage points on the cabinet body 1 during use of the cabinet body 1.

[0031] Specifically, the device uses the ring rail detection module 5 to comprehensively detect and locate the cooling liquid leakage points of the cabinet body 1 during the use of the cabinet body 1, thereby ensuring the sealing of the cabinet body 1, ensuring that the cooling liquid in the cabinet body 1 can effectively cool the running servers, improve the cooling effect of the cabinet body 1, and ensure the performance of the cabinet body 1.

[0032] Reference Figure 3 、 Figure 4 、 Figure 5 and Figure 6In a preferred embodiment, the ring track detection module 5 includes a gear ring 501, the inner wall of the gear ring 501 is connected to the outside of the support tray 2 by bolts, the outside of the ring track 3 is slidably connected to a fixed plate 502, the bottom of the fixed plate 502 is provided with a circular opening, the inner wall of the circular opening is connected to a motor 1 503 by bolts, the output end of the motor 1 503 is connected to a gear 504 through a coupling, the gear 504 is meshed with the gear ring 501, and the end of the fixed plate 502 away from the ring track 3 is rotatably connected to a mounting plate 505 through a bearing; a cutout is provided on the upper side of the mounting plate 505, a linear motor 508 is connected to the cutout by bolts, the output end of the linear motor 508 is connected to a transmission block 509 by bolts, and the transmission block 5 09 is connected with a transverse plate 510 on the side close to the cabinet body 1 by bolts, and the bottom of the fixed plate 502 is rotatably connected to a hydraulic rod 506 through a bearing, and a notch is provided on the side of the mounting plate 505 away from the cabinet body 1, and a rotating shaft 507 is rotatably connected in the notch through a bearing, and the output end of the hydraulic rod 506 is connected to the outside of the rotating shaft 507 by bolts; a sliding groove 512 is provided on the transverse plate 510, and a fixing ring 513 is slidably connected in the sliding groove 512, and a push-pull plate 511 is rotatably connected to the upper side of the transmission block 509 through a bearing, and a rectangular opening is provided on the end of the push-pull plate 511 away from the transmission block 509, and a round rod is connected in the rectangular opening by bolts, and the outside of the round rod is rotatably connected to the transmission block 509 through a bearing. It is connected to a push-pull plate 2 515, and one end of the push-pull plate 2 515 away from the push-pull plate 1 511 is rotatably connected to the outside of the fixed ring 513 through a bearing, and a torsion spring 516 is wrapped around the outside of the round rod, one end of the torsion spring 516 is connected to the outside of the push-pull plate 2 515 by a bolt, and the other end is connected to the outside of the push-pull plate 1 511 by a bolt; a round hole is opened on the fixed ring 513, and a hydraulic rod 2 514 is connected to the round hole by a bolt, and the output end of the hydraulic rod 2 514 is connected to a rotating seat 517 by a bolt, and a round shaft is rotatably connected to the rotating seat 517 through a bearing, and the outside of the round shaft is connected to a mounting platform 518 by a bolt, and the outside of the rotating seat 517 is connected to a motor 2 519 by a bolt, and the output of the motor 2 519 The output end is connected to one side of the circular shaft through a coupling, and a high-definition camera 520 and a high-pressure fan 521 are provided on the mounting platform 518; the transmission block 509 is connected to a boss 522 by bolts on one side close to the rotating seat 517, and a winding roller 523 is rotatably connected to the boss 522 through a bearing, and the outside of the winding roller 523 is connected to a wire rope 524 by bolts, and the end of the wire rope 524 away from the winding roller 523 is connected to the outside of the fixing ring 513 by bolts, and the outside of the boss 522 is connected to a motor three 525 by bolts, and the output end of the motor three 525 is connected to one side of the winding roller 523 through a coupling, and a stabilization module 6 is provided at the bottom of the cabinet body 1, and the stabilization module 6 is located outside the annular frame 4.

[0033] Specifically, during the use of the cabinet body 1, the motor 1 503 is started, and the motor 1 503 drives the gear 504 meshing with the gear ring 501 to rotate, so that the fixed plate 502 performs a circular motion on the annular rail 3 with the cabinet body 1 as the center. The motor 2 519 is started, and the motor 2 519 drives the mounting table 518 to rotate, so that the high-definition camera 520 can continuously observe the surface of the cabinet body 1. The hydraulic rod 1 506 is started, and the output end of the hydraulic rod 1 506 is retracted, so that the mounting plate 505 rotates upward on the fixed plate 502. The linear motor 508 is started, and the output end of the linear motor 508 drives the transmission block 509 on the mounting plate 505. The first push-pull plate 511 and the second push-pull plate 515 are moved to move, thereby lifting the horizontal plate 510 obliquely upward, starting the motor 3 525, and the motor 3 525 drives the winding roller 523 to reel and release the wire rope 524, so that the push-pull plate 1 511 and the push-pull plate 2 515 overcome the torsion of the torsion spring 516 to fold or release, thereby making the fixing ring 513 move in the sliding groove 512, so that the high-definition camera 520 can fully scan the surface of the cabinet body 1. After finding traces of coolant flowing on the surface of the cabinet body 1, the high-definition camera 520 will move to the top of the traces and start the high-pressure fan 521 to blow away the coolant at this position to observe whether it is a leak point. After confirmation, the position will be recorded.

[0034] In a specific application scenario, the ring rail detection module 5 is mainly suitable for the ring rail detection link in the ring rail detection process, that is, the ring rail detection module 5 uses the gear ring 501 and the fixed plate 502 to enable the device to realize comprehensive liquid leakage observation of the cabinet body 1 in the horizontal direction, and uses the hydraulic rod 506, the linear motor 508 and the wire rope 524 to enable the device to realize vertical observation. Through free adjustment in two directions, the device's ability to locate and judge leakage points is effectively improved, the occurrence of misjudgment is reduced, and the accuracy of detection is improved.

[0035] Reference Figure 7In a preferred embodiment, the stabilizing module 6 includes three equidistantly distributed connecting blocks 601, and the connecting blocks 601 are connected to the side opposite to the annular frame 4 by bolts. A hole groove is provided on each connecting block 601, and the inner wall of the hole groove is connected to the stabilizing platform 602 by bolts. A latch 606 is inserted into the stabilizing platform 602, and the upper side of the latch 606 is connected to the bottom of the cabinet body 1 by bolts, and the bottom of the stabilizing platform 602 is provided with three circumferentially equidistantly distributed grooves 603; a locking rod 604 is slidably connected in the multiple grooves 603, and the bottom of the locking rod 604 is connected to a short shaft 605 by bolts, and an annular groove 607 is provided on the outside of the latch 606, and the inner wall of the annular groove 607 is connected to the three locking rods 604 on the same side. external snap connection; the outside of the three latches 606 are slidably connected to a rotating frame 608, the upper side of the rotating frame 608 is rotatably connected to the bottom of the stabilizing platform 602 on the same side through a bearing, and the rotating frame 608 is provided with three circumferentially equidistant curved grooves 609, the inner walls of the curved grooves 609 are slidably connected to the outside of the short shaft 605 on the same side; the bottom of the three rotating frames 608 are connected to a handle 610 by bolts, and the outside of the rotating frame 608 is provided with an annular frame 611, the upper side of the annular frame 611 is connected to the bottom of the connecting block 601 by bolts, and the outside of the rotating frame 608 is connected to a coil spring 612 by bolts, and the end of the coil spring 612 away from the rotating frame 608 is connected to the inner wall of the annular frame 611 on the same side by bolts.

[0036] Specifically, when the cabinet body 1 is fixed on the annular frame 4, the pin 606 at the bottom of the cabinet body 1 is inserted into the stabilizing platform 602, and the handle 610 is rotated to make the rotating frame 608 rotate to overcome the torsion of the coil spring 612, so that the curved groove 609 can push the locking rod 604 on the short shaft 605 to move outside the stabilizing platform 602 during rotation, so that the pin 606 can be fully inserted into the stabilizing platform 602. After the insertion is completed, the handle 610 is released, and under the torsion of the coil spring 612, the locking rod 604 is reset and inserted into the annular groove 607, completing the clamping of the pin 606.

[0037] In a specific application scenario, the stabilization module 6 is mainly suitable for the stabilization link in the stabilization process, that is, the stabilization module 6 uses the stabilization platform 602 and the latch 606 to stably connect the cabinet body 1 to the annular frame 4, thereby helping the cabinet body 1 to improve its resistance to lateral forces. The locking rod 604 and the annular groove 607 can be used to quickly and conveniently complete the positioning of the cabinet body 1, so that the device can be more accurate when observing leakage in the cabinet body 1.

[0038] Working principle: When fixing the cabinet body 1 on the ring frame 4, insert the latch 606 at the bottom of the cabinet body 1 into the stabilizing platform 602, rotate the handle 610, and rotate the rotating frame 608 to overcome the torsion of the coil spring 612, so that the curved groove 609 can push the locking rod 604 on the short shaft 605 to move outside the stabilizing platform 602 during the rotation, so that the latch 606 can be fully inserted into the stabilizing platform 602. After the insertion is completed, release the handle 610, and the coil spring 612 will rotate. 12, the locking rod 604 is reset and inserted into the annular groove 607, completing the clamping of the latch 606. During the use of the cabinet body 1, the motor 1 503 is started, and the motor 1 503 drives the gear 504 engaged with the gear ring 501 to rotate, so that the fixing plate 502 performs a circular motion on the annular rail 3 with the cabinet body 1 as the center. The motor 2 519 is started, and the motor 2 519 drives the mounting platform 518 to rotate, so that the high-definition camera 520 can continuously focus on the cabinet body 1. The surface of the cabinet body 1 is observed, and the hydraulic rod 1 506 is started. The output end of the hydraulic rod 1 506 retracts, thereby causing the mounting plate 505 to rotate upward on the fixed plate 502. The linear motor 508 is started. The output end of the linear motor 508 drives the transmission block 509 to move on the mounting plate 505, thereby lifting the transverse plate 510 obliquely upward. The motor 3 525 is started. The motor 3 525 drives the winding roller 523 to reel in and release the wire rope 524, so that the push-pull plate 1 511 and the push-pull plate 2 515 overcome the torsion force of the torsion spring 516 and fold or release, thereby causing the fixing ring 513 to move in the sliding groove 512, so that the high-definition camera 520 can fully scan the surface of the cabinet body 1. After discovering traces of coolant flowing on the surface of the cabinet body 1, the high-definition camera 520 will move to the top of the trace and start the high-pressure fan 521 to blow away the coolant at that location to observe whether it is a leak point. After confirmation, the location is recorded.

[0039] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A liquid-cooled server cabinet, characterized in that: include: Cabinet body (1); An annular frame (4), wherein the upper side of the annular frame (4) contacts the bottom of the cabinet body (1), and the bottom of the annular frame (4) is fixedly connected to a supporting tray (2); An annular rail (3), the bottom of the annular rail (3) is fixedly connected to the upper side of the supporting tray (2), and the annular rail (3) is located below the cabinet body (1); A ring rail detection module (5) is located outside the ring rail (3), and the ring rail detection module (5) is located outside the cabinet body (1). The ring rail detection module (5) is used to detect and locate a coolant leakage point on the cabinet body (1) during use of the cabinet body (1).

2. The liquid cooling server cabinet according to claim 1, characterized in that: The ring track detection module (5) comprises a gear ring (501), the inner wall of the gear ring (501) is fixedly connected to the outside of the support tray (2), the outside of the ring track (3) is slidably connected to a fixed plate (502), the bottom of the fixed plate (502) is provided with a circular opening, the inner wall of the circular opening is fixedly connected to a motor 1 (503), the output end of the motor 1 (503) is connected to a gear (504) via a coupling, the gear (504) is meshed with the gear ring (501), and the end of the fixed plate (502) away from the ring track (3) is movably connected to a mounting plate (505).

3. The liquid cooling server cabinet according to claim 2, characterized in that: A notch is provided on the upper side of the mounting plate (505), a linear motor (508) is fixedly connected in the notch, an output end of the linear motor (508) is fixedly connected to a transmission block (509), a side of the transmission block (509) close to the cabinet body (1) is fixedly connected to a transverse plate (510), and a hydraulic rod (506) is movably connected to the bottom of the fixed plate (502), a notch is provided on the side of the mounting plate (505) away from the cabinet body (1), a rotating shaft (507) is movably connected in the notch, and an output end of the hydraulic rod (506) is fixedly connected to the outside of the rotating shaft (507).

4. The liquid cooling server cabinet according to claim 3, characterized in that: The transverse plate (510) is provided with a sliding groove (512), a fixed ring (513) is slidably connected in the sliding groove (512), a push-pull plate 1 (511) is movably connected to the upper side of the transmission block (509), a rectangular opening is provided at one end of the push-pull plate 1 (511) away from the transmission block (509), a round rod is fixedly connected in the rectangular opening, a push-pull plate 2 (515) is movably connected to the outside of the round rod, an end of the push-pull plate 2 (515) away from the push-pull plate 1 (511) is movably connected to the outside of the fixed ring (513), and a torsion spring (516) is wrapped around the outside of the round rod, one end of the torsion spring (516) is fixedly connected to the outside of the push-pull plate 2 (515), and the other end is fixedly connected to the outside of the push-pull plate 1 (511).

5. The liquid cooling server cabinet according to claim 4, characterized in that: The fixing ring (513) is provided with a circular hole, in which a second hydraulic rod (514) is fixedly connected, the output end of the second hydraulic rod (514) is fixedly connected to a rotating seat (517), a circular shaft is movably connected to the rotating seat (517), the outside of the circular shaft is fixedly connected to a mounting platform (518), the outside of the rotating seat (517) is fixedly connected to a second motor (519), the output end of the second motor (519) is connected to one side of the circular shaft via a coupling, and a high-definition camera (520) and a high-pressure blower (521) are provided on the mounting platform (518).

6. The liquid cooling server cabinet according to claim 4, characterized in that: The transmission block (509) is fixedly connected to a convex seat (522) on one side close to the rotating seat (517), a winding roller (523) is movably connected to the convex seat (522), a steel wire rope (524) is fixedly connected to the outside of the winding roller (523), an end of the steel wire rope (524) away from the winding roller (523) is fixedly connected to the outside of the fixing ring (513), and a motor 3 (525) is fixedly connected to the outside of the convex seat (522), an output end of the motor 3 (525) is connected to one side of the winding roller (523) via a coupling, and a stabilizing module (6) is provided at the bottom of the cabinet body (1), and the stabilizing module (6) is located outside the annular frame (4).

7. The liquid cooling server cabinet according to claim 6, characterized in that: The stabilizing module (6) comprises three equally spaced connecting blocks (601), the connecting blocks (601) being fixedly connected to the side opposite to the annular frame (4), the connecting blocks (601) being provided with a hole groove, the inner wall of which is fixedly connected to a stabilizing platform (602), the stabilizing platform (602) being plugged with a latch (606), the upper side of the latch (606) being fixedly connected to the bottom of the cabinet body (1), and the bottom of the stabilizing platform (602) being provided with three circumferentially equally spaced cutting grooves (603).

8. The liquid cooling server cabinet according to claim 7, characterized in that: The plurality of cutting grooves (603) are all slidably connected to locking rods (604), the bottoms of the locking rods (604) are all fixedly connected to short shafts (605), and the outsides of the latches (606) are all provided with annular grooves (607), and the inner walls of the annular grooves (607) are all engaged with the outsides of the three locking rods (604) on the same side.

9. The liquid cooling server cabinet according to claim 8, characterized in that: The outsides of the three latches (606) are all slidably connected to a rotating frame (608), the upper sides of the rotating frames (608) are all movably connected to the bottom of the stabilizing platform (602) on the same side, and the rotating frames (608) are each provided with three circumferentially equidistantly distributed curved grooves (609), and the inner walls of the curved grooves (609) are all slidably connected to the outside of the short shaft (605) on the same side.

10. The liquid cooling server cabinet according to claim 9, characterized in that: The bottoms of the three rotating frames (608) are all fixedly connected to handle bars (610), the outsides of the rotating frames (608) are all provided with annular frames (611), the upper sides of the annular frames (611) are all fixedly connected to the bottoms of the connecting blocks (601), and the outsides of the rotating frames (608) are all fixedly connected to coil springs (612), and the ends of the coil springs (612) away from the rotating frames (608) are all fixedly connected to the inner walls of the annular frames (611) on the same side.

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