Big data disaster recovery storage device

Abstract

This invention provides a big data disaster recovery storage device, relating to the field of storage device technology. It includes a cabinet, a memory, a locking mechanism, and a fixing mechanism. The locking mechanism consists of a one-way component and a release component, connected in series between the memory and the cabinet via an intermediate tube. The one-way component utilizes the inclined surfaces of the inner and outer inclined blocks and the action of a push spring to drive the inner and outer friction disks to expand radially, generating friction locking. The fixing mechanism achieves fixation through the tight fit of rubber strips on the inner and outer friction disks with the inner layer slots of the memory and the upper limit sleeve of the cabinet, respectively. The release component requires the use of a dedicated synchronous rod matching the number of intermediate tubes to unlock. This device enables authorized installation of the memory and prevents unauthorized disassembly. Mechanical self-locking and multiple redundant designs ensure the physical security and data reliability of the disaster recovery storage device.

Description

Technical Field

[0001] This invention relates to the field of storage device technology, and more specifically, to a big data disaster recovery storage device. Background Technology

[0002] In existing technologies, big data disaster recovery storage devices typically adopt a standard rack-mount design. The installation method for the core data storage units (such as hard drives, solid-state drives, or storage servers) generally relies on traditional mechanical bolts or screws for fixing. This fixing method only considers the basic physical connection stability in mechanical design. Its locking and unlocking rely entirely on the cooperation of general tools (such as screwdrivers and wrenches) and standard threads. From a physical security perspective, this design has a fundamental access control flaw: anyone who can physically access the equipment, as long as they have matching simple tools, can directly disassemble the storage carrier without triggering any alarms or leaving clear electronic logs. In data centers, shared server rooms, or complex environments with multiple tenants and multiple operation and maintenance teams, this indiscriminate physical disassembly constitutes a serious security weakness, exposing critical data storage carriers to the risk of unauthorized access, theft, or malicious replacement, failing to meet the high standards of data physical security requirements of disaster recovery systems.

[0003] This security vulnerability can trigger a series of serious security and management problems in actual operation. First, it directly threatens the confidentiality and integrity of data. Malicious individuals can easily steal storage media to obtain sensitive data or implant hardware Trojans by replacing components, creating conditions for subsequent network attacks. Second, it undermines the reliability and trustworthiness of the disaster recovery system. Once the core storage unit is removed or replaced without authorization, the authenticity and effectiveness of the entire disaster recovery chain cannot be guaranteed. This may lead to disaster recovery failure when the enterprise faces a main system failure, resulting in catastrophic business interruption and permanent data loss. Furthermore, from a management and compliance perspective, the lack of a controlled physical access mechanism makes security auditing extremely difficult, making it impossible to accurately track "who, when, and on which device" performed physical operations. Therefore, developing a storage device installation and fixing mechanism that can achieve authorized physical locking and prevent unauthorized disassembly is crucial for building a truly secure, reliable, and compliant big data disaster recovery storage system. Summary of the Invention

[0004] (a) Technical problems to be solved In view of the problems existing in the prior art, the present invention provides a big data disaster recovery storage device to solve the technical problems mentioned in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a big data disaster recovery storage device, comprising a cabinet and a storage device, and further comprising a locking mechanism and a fixing mechanism; The locking mechanism includes a one-way component and an unlocking component. The locking mechanism can lock the memory and the cabinet. Both the installation and unlocking processes require an authorized operator to use the matching equipment, thereby ensuring the safety of use. The unidirectional component ensures the lock between the memory and the cabinet when it is pulled out, and multiple sets can be connected in series for fixation. Even if one of them fails, the whole will not fail, thus ensuring that it can only be used by authorized personnel. The unblocking component is a set of unblocking schemes customized according to the number of unidirectional components, and only a fixed operator will know how many sets of unidirectional components are used, thus ensuring the safety of use; The fixing mechanism, in conjunction with the locking mechanism, produces a corresponding locking effect.

[0006] Preferably, the unidirectional component includes multiple intermediate frames installed inside the cabinet, and the memory is slidably connected within the intermediate frames. Outer sleeves are installed on both sides of the intermediate frames, and a limiting sleeve is installed inside each of the outer sleeves.

[0007] Preferably, when the memory is installed in the intermediate frame, the two sides of the memory are respectively attached between two outer sleeves, and the two sides of the memory are respectively provided with inner layer grooves, and the inner layer grooves are provided with embedded grooves. An intermediate tube is attached between the embedded grooves and the limiting sleeves.

[0008] Preferably, an inner tube and a limiting tube are respectively provided on both sides of the intermediate tube, the inner tube being slidably connected in the inner groove, and the limiting tube being slidably connected in the inner tube.

[0009] Preferably, each of the intermediate tubes has multiple sets of inner expansion grooves and outer expansion grooves symmetrically formed inside, and an inner inclined block is slidably connected to the inner expansion groove, and an outer inclined block is slidably connected to the outer expansion groove. When the inner and outer inclined blocks slide in one direction, they move in opposite directions in the circumferential direction. A push spring is installed on the inner and outer inclined blocks respectively, and the push springs abut against the inside of the intermediate tube.

[0010] Preferably, the release assembly includes guide holes formed in the inner tube and the limiting tube, and guide rods are respectively slidably connected in the two guide holes. A reset spring is provided on the guide rod, the reset spring presses against the middle tube, and a pressure plate is installed on the guide rod. The pressure plate presses against the inner or outer inclined block of the same group on the side away from the push spring.

[0011] Preferably, a synchronizing rod is coaxially arranged inside the intermediate tube, and multiple sets of elliptical blocks are symmetrically arranged inside the synchronizing rod. An arched block is arranged between each set of elliptical blocks, and the arched block rests on the pressure plate.

[0012] Preferably, an elliptical groove is formed between the plurality of intermediate tubes, and the elliptical groove and the elliptical block have the same shape. A top plate is provided on the synchronizing rod, the top plate abuts against the intermediate tube, and a handle is provided at the end of the synchronizing rod.

[0013] Preferably, the same set of elliptical blocks are set according to the number of intermediate tubes, so that the pressure plate operation in multiple sets of intermediate tubes can cause the multiple sets of inner inclined blocks and outer inclined blocks to retract with each other.

[0014] Preferably, the fixing mechanism includes an inner friction disc mounted on the inner inclined block and an outer friction disc mounted on the outer inclined block. Multiple sets of rubber strips are respectively installed on the outer walls of the inner friction disc and the outer friction disc, and the inner friction disc is attached to the inner groove, while the outer friction disc is attached to the inner sleeve.

[0015] (III) Beneficial Effects Compared with existing technologies, the present invention provides a big data disaster recovery storage device, which has the following beneficial effects: This invention achieves strong physical protection against unauthorized disassembly of the memory through an innovative mechanical inclined self-locking and friction locking mechanism. When an unauthorized person attempts to forcibly pull out the memory, the applied pulling force is transmitted to the inner and outer friction disks. Since both are tightly attached to the inner layer slots of the memory and the limiting sleeves of the cabinet through rubber strips, a huge static friction force is generated. This pulling force will force the inner and outer inclined blocks to tend to separate axially. This tendency is immediately transformed into a stronger radial expansion motion through the inclined surfaces of the two, so that the inner and outer friction disks press the contact surfaces together with greater pressure, forming a "tightening as it is pulled" self-locking effect. This purely mechanical self-locking reaction is rapid and requires no external intervention, which can effectively prevent any forced disassembly attempt using general tools, providing intrinsically safe physical protection for the storage medium.

[0016] This invention employs a redundant design with multiple independent locking units connected in series, significantly improving the reliability and failure prevention capability of the overall locking system. Depending on the security level requirements, multiple intermediate tubes can be deployed on both sides of the memory. Each intermediate tube and its internal wedge and friction disk assembly constitute an independent locking unit. These units work together in series mechanically but do not affect each other. Even if one or more units fail unexpectedly due to extreme circumstances, the remaining intact units can still provide sufficient locking force to prevent the memory from being extracted. This redundant architecture ensures the high availability of the locking function and avoids the security risks caused by single point of failure. It is particularly suitable for disaster recovery storage scenarios with extremely high requirements for data security and system continuity.

[0017] This invention enables authorized management of the installation and disassembly processes, greatly improving the safety and standardization of equipment management. Disassembling the memory requires the use of a dedicated synchronizing rod that perfectly matches the number of intermediate tubes actually installed on the equipment. This tool needs to be inserted into all intermediate tubes and rotated at a specific angle to simultaneously press all pressure plates through the arched blocks on it, thereby driving all inner and outer inclined blocks to retract and unlock. This not only requires the operator to possess a dedicated tool but also requires them to accurately know the specific locking configuration of the equipment (i.e., the number of intermediate tubes). The dual verification mechanism ensures that only authorized personnel can perform the disassembly operation, effectively preventing unauthorized physical contact from the inside or outside, and meeting strict safety audit and compliance management requirements.

[0018] The locking mechanism of this invention provides high security while also offering excellent ease of operation and clear status indication. During installation, authorized personnel only need to use a dedicated synchronizing rod to pre-set multiple intermediate tubes to the retracted state, insert them into place, and then pull out the tool to automatically complete the locking. Disassembly is equally convenient in reverse. The entire process requires no complex tools or cumbersome steps. The locked and unlocked states have clear mechanical position indicators for quick confirmation. At the same time, all core components are robust mechanical structures with no electronic components, are not subject to electromagnetic interference, and can work stably and reliably for a long time in various environments in data centers. It also has low maintenance costs and a long lifespan.

[0019] This invention possesses excellent adaptability and scalability. By increasing or decreasing the number of intermediate tubes connected in series, the security level and strength of the lock can be flexibly adjusted to cope with different security strategies or storage device specifications. The rubber strips on the inner and outer friction disks can be made of materials with different friction coefficients according to different environmental conditions (such as temperature and humidity) or contact surface materials to optimize locking performance. This design can be modularly integrated into various standard or customized storage racks, providing a ready-to-use, high-security physical locking solution for existing or newly built disaster recovery storage systems. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a big data disaster recovery storage device according to the present invention; Figure 2 This is a schematic diagram of the structure of the memory and outer sleeve in this invention; Figure 3 This is an exploded cross-sectional view of the memory and intermediate frame in this invention; Figure 4 This is a schematic diagram of the structure of the intermediate tube and the synchronizing rod in this invention; Figure 5 In this invention Figure 4 A schematic diagram of the cross-sectional structure; Figure 6This is a cross-sectional view of the embedded tube and the limiting tube in this invention; Figure 7 In this invention Figure 6 A schematic diagram of the cross-sectional structure; Figure 8 This is a cross-sectional view of the intermediate tube in this invention. Figure 9 This is a cross-sectional view of the intermediate tube, inner inclined block, and outer inclined block in this invention. Figure 10 This is a schematic diagram of the structure of the inner friction disk, outer friction disk, and pressure disk in this invention.

[0021] In the diagram: 11. Cabinet; 12. Memory; 21. One-way component; 22. Intermediate frame; 23. Outer sleeve; 24. Limiting sleeve; 25. Inner groove; 26. Embedded groove; 27. Intermediate tube; 28. Embedded tube; 29. ​​Limiting tube; 31. Release component; 32. Guide hole; 33. Guide rod; 34. Reset spring; 35. Pressure plate; 36. Synchronizing rod; 37. Elliptical block; 38. Arched block; 39. Elliptical groove; 41. Fixing mechanism; 42. Inner friction plate; 43. Outer friction plate; 44. Rubber strip; 210. Inner expansion groove; 211. Outer expansion groove; 212. Inner inclined block; 213. Outer inclined block; 214. Push spring; 310. Top plate; 311. Handle. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0025] Please see Figures 1 to 10 This embodiment provides a big data disaster recovery storage device. The device aims to solve the security risks of existing storage devices where storage units are only fixed with bolts and physically disassembled without authorized control. By integrating a mechanical authorized locking mechanism that requires special tools, a stable connection between the storage unit and the cabinet is achieved, which prevents unauthorized disassembly, thereby ensuring the physical security and data reliability of the disaster recovery storage system.

[0026] The big data disaster recovery storage device includes a cabinet 11, a memory 12 that can be slidably installed inside it, and a locking mechanism and a fixing mechanism 41 for locking the memory 12. The locking mechanism is used to realize the insertion locking and authorized unlocking of the memory 12. It consists of a one-way component 21 and an unlocking component 31. The fixing mechanism 41 cooperates with the locking mechanism to generate a self-locking force that resists pulling out when locked.

[0027] The unidirectional component 21 includes multiple intermediate frames 22 fixed within the cabinet 11. The memory 12 is slidably mounted within the intermediate frame 22. Outer sleeves 23 are fixed on both sides of the intermediate frame 22, and a limiting sleeve 24 is fixedly provided inside each outer sleeve 23. Inner grooves 25 are formed on both sides of the memory 12, and embedded grooves 26 are formed within the inner grooves 25. An intermediate tube 27 can be disposed between the embedded groove 26 and the limiting sleeve 24. An embedded tube 28 and a limiting tube 29 are respectively provided at both ends of the intermediate tube 27. The embedded tube 28 can be slidably inserted into the embedded groove. 26. The limiting tube 29 can be slidably inserted into the limiting sleeve 24. Several sets of inner expansion grooves 210 and outer expansion grooves 211 are symmetrically opened inside each intermediate tube 27. The inner expansion groove 210 is slidably connected to the inner inclined block 212, and the outer expansion groove 211 is slidably connected to the outer inclined block 213. The inclined surfaces of the inner inclined block 212 and the outer inclined block 213 cooperate so that the two move in opposite directions radially when they are axially linked. The inner inclined block 212 and the outer inclined block 213 are both equipped with push springs 214, and the other end of the push spring 214 abuts against the inner wall of the intermediate tube 27.

[0028] The disassembly assembly 31 includes guide holes 32 formed in the inner tube 28 and the limiting tube 29. Two guide rods 33 are respectively limited and slidable in the two guide holes 32. A return spring 34 is sleeved on the guide rod 33 and rests against the inside of the intermediate tube 27. A pressure plate 35 is installed on the inner end of the guide rod 33. The pressure plate 35 abuts against the inner end face of the inner inclined block 212 or the outer inclined block 213. A synchronizing rod 36 is coaxially inserted inside the intermediate tube 27. Multiple sets of elliptical blocks 37 are symmetrically fixed on the 6. An arched block 38 is provided between each pair of elliptical blocks 37. The outer circumference of the arched block 38 can abut against and push two pressure plates 35. An elliptical groove 39 matching the shape of the elliptical block 37 is opened on the wall of each intermediate tube 27. A top plate 310 is provided at one end of the synchronizing rod 36, and a handle 311 is provided at the other end. The number of sets of elliptical blocks 37 and arched blocks 38 on the synchronizing rod 36 corresponds to the number of intermediate tubes 27 connected in series.

[0029] The fixing mechanism 41 includes an inner friction disk 42 fixed on the inner inclined block 212 and an outer friction disk 43 fixed on the outer inclined block 213. The outer surfaces of the inner friction disk 42 and the outer friction disk 43 are provided with multiple rubber strips 44. The inner friction disk 42 is used to make frictional contact with the surface of the inner layer groove 25 of the memory 12, and the outer friction disk 43 is used to make frictional contact with the inner wall of the limiting sleeve 24 inside the outer layer sleeve 23.

[0030] The locking and unlocking working principle and self-locking mechanism of the device are as follows: When installing the memory 12, first push it into the cabinet 11 along the intermediate frame 22 until its two ends abut against the outer sleeves 23 on both sides. Then, select the corresponding number of intermediate tubes 27 according to the preset security level (i.e., locking strength), and select a special synchronous rod 36 with a corresponding number of elliptical blocks 37 and arched blocks 38. Insert multiple intermediate tubes 27 into the synchronous rod 36 in sequence. Align the elliptical grooves 39 and elliptical blocks 37 to make each intermediate tube 27 aligned and abut against each other on the synchronous rod 36. Turn the handle 311 to... The synchronous rod 36 rotates, causing the arched block 38 on it to rotate synchronously. The highest point of the arched block 38 will simultaneously press the pressure plates 35 at both ends to move inward. The pressure plates 35 push the inner inclined block 212 and the outer inclined block 213 to overcome the elastic force of the push spring 214 and slide along the inner expansion groove 210 and the outer expansion groove 211 towards the axis of the middle tube 27. Due to the effect of the inclined surface, the inner inclined block 212 and the outer inclined block 213 contract radially, thereby causing the inner friction plate 42 and the outer friction plate 43, together with the rubber strip 44 on them, to retract into the middle tube 27. At this time, the middle tube 27 is in the "unlocked and retracted" state.

[0031] The operator inserts multiple intermediate tubes 27, which are in a retracted state, into the recessed slots 26 on both sides of the memory 12 and the corresponding limiting sleeves 24 of the outer sleeve 23, ensuring that the recessed tubes 28 enter the recessed slots 26 and the limiting tubes 29 enter the limiting sleeves 24. After all are inserted, the operator rotates the synchronizing rod 36 in the opposite direction to the initial position. The pressure of the arched block 38 on the pressure plate 35 is released. Under the restoring force of the push spring 214, the inner inclined block 212 and the outer inclined block 213 slide along their grooves to both sides and expand radially, thereby driving the inner friction plate 42 to press against the inner wall of the inner groove 25 of the memory 12. At the same time, the operator drives the outer friction plate 43 to press against the inner wall of the inner limiting sleeve 24 of the outer sleeve 23. The rubber strip 44 provides increased friction, completing the setting of the locking state. Finally, the operator rotates the synchronizing rod 36 until the elliptical block 37 is aligned with the elliptical groove 39, and then the synchronizing rod 36 can be pulled out as a whole.

[0032] Once the locking state is established, if someone attempts to forcibly remove the memory 12 without authorization, the applied pulling force will cause the memory 12 to tend to move relative to the outer sleeve 23. This tendency is transmitted to the inner friction disk 42 and the outer friction disk 43. Due to the huge static friction between the two and the inner groove 25 and the limiting sleeve 24 respectively, they are temporarily "fixed". The pulling force will be converted into a tendency for the inner inclined block 212 and the outer inclined block 213 to separate slightly along their grooves. This axial separation tendency is immediately converted into a stronger radial expansion tendency through the inclined surface action, so that the inner friction disk 42 and the outer friction disk 43 press against their respective contact surfaces with greater positive pressure. The friction force increases sharply, forming a mechanical self-locking effect of "the tighter it is pulled, the tighter it is locked", which effectively prevents the unauthorized removal of the memory 12. Since there are multiple sets of independent intermediate tubes 27 on both sides, even if a single component fails, the overall locking function is still effective.

[0033] When authorized maintenance personnel need to disassemble the memory 12, they must use a special synchronous rod 36 that is perfectly matched with the number of locking groups. Insert the rod into all the intermediate tubes 27, rotate the handle 311 to the predetermined position, so that the arched block 38 presses down on all the pressure plates 35 again, and retracts all the inner inclined blocks 212 and outer inclined blocks 213, thereby releasing the pressing state of the inner and outer friction plates, so that the memory 12 can be pulled out smoothly. This process relies on the accurate knowledge of the number of locking groups and the possession of special tools, thus realizing the authorized management of physical disassembly.

[0034] Working principle summary: This invention utilizes the inclined plane self-locking principle and friction locking mechanism. Multiple locking units are driven by a special tool to simultaneously enter the unlocked state for installation or disassembly. Under normal conditions, the mechanical structure automatically achieves self-locking that tightens as it is pulled, effectively preventing unauthorized physical disassembly. At the same time, multiple independent locking units provide redundancy and reliability, providing a highly secure physical protection solution for big data disaster recovery storage devices.

[0035] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A big data disaster recovery storage device, comprising a cabinet (11) and a storage device (12), characterized in that: It also includes locking and fixing mechanisms (41); The locking mechanism includes a one-way component (21) and an unlocking component (31). The locking mechanism can lock the memory (12) and the cabinet (11). Both the installation and unlocking processes require an authorized operator to use the matching equipment, thereby ensuring the safety of use. The unidirectional component (21) ensures the lock-up between the memory (12) and the cabinet (11), and multiple sets can be connected in series for fixation. Even if a single component fails, the whole will not fail, thus ensuring that it can only be used by authorized personnel. The unblocking component (31) is a set of unblocking schemes customized according to the number of unidirectional components (21), and only a fixed operator will know how many sets of unidirectional components (21) are used, thus ensuring the safety of use; The fixing mechanism (41) works in conjunction with the locking mechanism to produce a corresponding locking effect.

2. The big data disaster recovery storage device according to claim 1, characterized in that: The unidirectional component (21) includes multiple intermediate frames (22) installed in the cabinet (11), and the memory (12) is slidably connected in the intermediate frame (22). The two sides of the intermediate frame (22) are respectively equipped with outer sleeves (23), and each outer sleeve (23) is equipped with a limiting sleeve (24).

3. A big data disaster recovery storage device according to claim 2, characterized in that: When the memory (12) is installed in the intermediate frame (22), the two sides of the memory (12) are respectively attached between the two outer sleeves (23). The two sides of the memory (12) are respectively provided with inner grooves (25), and an embedded groove (26) is provided in the inner groove (25). An intermediate tube (27) is attached between the embedded groove (26) and the limiting sleeve (24).

4. A big data disaster recovery storage device according to claim 3, characterized in that: The middle tube (27) is provided with an embedded tube (28) and a limiting tube (29) on both sides respectively. The embedded tube (28) is slidably connected in the embedded groove (26), and the limiting tube (29) is slidably connected in the embedded tube (28).

5. A big data disaster recovery storage device according to claim 4, characterized in that: Each of the intermediate tubes (27) has a plurality of sets of inner expansion grooves (210) and outer expansion grooves (211) symmetrically provided. An inner inclined block (212) is slidably connected in the inner expansion groove (210), and an outer inclined block (213) is slidably connected in the outer expansion groove (211). When the inner inclined block (212) and the outer inclined block (213) slide in one direction, they move in opposite directions in the circumferential direction. A push spring (214) is installed on the inner inclined block (212) and the outer inclined block (213), and the push spring (214) abuts against the inside of the intermediate tube (27).

6. A big data disaster recovery storage device according to claim 4, characterized in that: The release assembly (31) includes guide holes (32) opened in the inner tube (28) and the limiting tube (29). Guide rods (33) are respectively limited and slidably connected in the two guide holes (32). A reset spring (34) is provided on the guide rod (33). The reset spring (34) presses against the middle tube (27). A pressure plate (35) is installed on the guide rod (33). The pressure plate (35) presses against the inner inclined block (212) or the outer inclined block (213) of the same group on the side away from the push spring (214).

7. A big data disaster recovery storage device according to claim 6, characterized in that: A synchronizing rod (36) is coaxially arranged inside the intermediate tube (27). Multiple sets of elliptical blocks (37) are symmetrically arranged inside the synchronizing rod (36). An arched block (38) is arranged between each set of elliptical blocks (37), and the arched block (38) rests on the pressure plate (35).

8. A big data disaster recovery storage device according to claim 7, characterized in that: Elliptical grooves (39) are provided between the multiple intermediate tubes (27), and the elliptical grooves (39) and the elliptical blocks (37) have the same shape. A top plate (310) is provided on the synchronizing rod (36), and the top plate (310) abuts against the intermediate tubes (27). A handle (311) is provided at the end of the synchronizing rod (36).

9. A big data disaster recovery storage device according to claim 8, characterized in that: The same set of elliptical blocks (37) will be set according to the number of intermediate tubes (27) so that the pressure plates (35) in multiple sets of intermediate tubes (27) can be operated so that multiple sets of inner inclined blocks (212) and outer inclined blocks (213) can retract with each other.

10. A big data disaster recovery storage device according to claim 5, characterized in that: The fixing mechanism (41) includes an inner friction disc (42) installed on the inner inclined block (212) and an outer friction disc (43) installed on the outer inclined block (213). Multiple sets of rubber strips (44) are respectively installed on the outer walls of the inner friction disc (42) and the outer friction disc (43), and the inner friction disc (42) is attached to the inner groove (25), while the outer friction disc (43) is attached to the outer sleeve (23).

Images