A pluggable power module and plugging operation method

Abstract

The application relates to the technical field of power module mounting, and provides a pluggable power module and a plugging operation method, the power module comprising a module body, a connecting plate, a limiting sliding plate, an inclined plate, a vertical plate movably arranged on a base plate, a clamping plate fixedly connected to the top end of the vertical plate, and the connecting plate movably matched with the clamping plate; a sliding groove is formed in the inner side of the clamping plate, a sliding plate slidably matched with the sliding groove is fixedly connected to the connecting plate, and a clamping groove matched with the limiting sliding plate is formed in the vertical plate; the power module further comprises an elastic piece arranged at the end of the limiting sliding plate, and a fixing groove matched with the elastic piece is formed in the inclined plate. Through the ingenious cooperation of the connecting plate, the limiting sliding plate, the inclined plate, the vertical plate and the clamping plate, the accurate positioning and stable connection between the power module and the base plate are realized, the cooperation of the sliding groove and the sliding plate and the clamping of the limiting sliding plate and the clamping groove ensure the stability and reliability of the power module during the plugging process, and prevent the occurrence of loosening or falling off.

Description

Technical Field

[0001] This application relates to the field of power module installation technology, specifically a pluggable power module and a pluggable operation method. Background Technology

[0002] In today's era of highly integrated and modular electronic devices, power modules, as core components for power supply, are of paramount importance in terms of ease of installation and maintenance, stability, and reliability. Traditional power module installation methods often employ fixed connections, such as screw fastening or welding. When a power module malfunctions or requires an upgrade, these methods often necessitate shutting down the entire electronic system and performing cumbersome disassembly and replacement operations. This not only increases maintenance costs and time but may also lead to serious consequences such as data loss or business interruption due to system downtime.

[0003] Although some pluggable power module designs exist on the market, they often suffer from problems such as unstable connections, easy loosening, or excessive insertion and extraction force, making it difficult to meet the requirements of high reliability, high efficiency, and ease of maintenance.

[0004] Therefore, a pluggable power module is proposed to address the above problems. Summary of the Invention

[0005] The purpose of this application is to provide a pluggable power module and a pluggable operation method.

[0006] The objective of this application is achieved through the following technical solution: a pluggable power module, comprising a module body that is plugged into and cooperates with a base plate, a connecting plate that is slidably connected to the side of the module body, a limiting slide plate that is obliquely distributed and fixedly connected to the end of the connecting plate, an inclined plate that is slidably cooperates with the limiting slide plate that is fixedly connected to the base plate, a vertical plate that is vertically movable on the base plate, a locking plate that is fixedly connected to the top of the vertical plate, and the connecting plate and the locking plate being movably cooperated.

[0007] The inner side of the card plate is provided with a sliding groove, and a sliding plate that slides with the sliding groove is fixedly connected to the connecting plate. A slot that engages with the limiting slide plate is provided on the vertical plate.

[0008] It also includes an elastic element located at the end of the limiting slide plate, and a fixing groove that cooperates with the elastic element is provided on the inclined plate.

[0009] Preferably, the connecting plate is horizontally inserted into the module body, and an elastic connector is attached between the end of the connecting plate and the module body to provide elastic buffering and reset functions.

[0010] Preferably, the card plate has a U-shaped structure, and guide plates that are inclinedly distributed are fixedly connected to both ends of the card plate, which improves the accuracy of docking between the connecting plate and the card plate.

[0011] Preferably, the elastic element includes an arc-shaped elastic plate that is fixedly connected to the inclined plate. A lever plate is fixedly connected to the straight end of the arc-shaped elastic plate. The arc-shaped elastic plate is engaged with the fixed groove, and the engagement ensures the stability of the connection.

[0012] Preferably, the side of the vertical plate is slidably fitted with the end of the inclined plate, and a limiting rod is fixedly connected to the base plate. The limiting rod is movably inserted into the vertical plate to ensure the stability of the vertical plate during movement.

[0013] Preferably, a movable block is fixedly connected to the top of the limiting rod, and a movable groove for sliding of the movable block is opened on both the clamping plate and the vertical plate. The top of the movable block passes through the movable groove and presses against the connecting plate, thereby enhancing the tightness of the connection between the connecting plate and the clamping plate.

[0014] Preferably, the movable block is provided with a clearance groove, and a fixing plate that is inserted and matched with the clearance groove is fixedly connected to the top surface of the inner wall of the movable groove. A compression spring is hung between the fixing plate and the bottom of the movable block, so that the movable block can better adapt to the movement of the connecting plate during the pressing process with the connecting plate.

[0015] Preferably, the movable groove and the card slot are connected in communication, and the limiting slide plate and the bottom end of the movable block are pressed together, which enhances the tightness of the connection between the connecting plate and the card plate.

[0016] Preferably, the bottom plate of the module body and the base plate are fitted with a clearance, and a sleeve is fixedly connected to the base plate, with the sleeve corresponding to the reserved hole position of the bottom plate of the module body.

[0017] Compared with the prior art, the advantages of this application are:

[0018] 1. Through the ingenious cooperation of components such as connecting plate, limiting slide plate, tilting plate, vertical plate and clamping plate, the precise positioning and stable connection between the power module and the base plate are achieved. The cooperation between the sliding groove and the sliding plate, as well as the engagement between the limiting slide plate and the clamping groove, ensure the stability and reliability of the power module during the insertion and removal process, and effectively prevent loosening or falling off.

[0019] 2. Flexible components (such as curved elastic plates) enable the power module to automatically complete part of the connection action when inserted into the base plate, reducing the complexity and force requirements of manual operation. At the same time, the lever plate also makes it easy for users to quickly disconnect when they need to remove the power module, improving maintenance efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this application;

[0021] Figure 2 This is a partial structural diagram of this application;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the connecting plate and the card plate in this application;

[0023] Figure 4 This is a schematic diagram of the snap-fit ​​structure between the connecting plate and the card plate in this application;

[0024] Figure 5 This is a schematic diagram of the disassembled structure of the limiting slide and the tilting plate of this application;

[0025] Figure 6 This is a cross-sectional structural diagram of the card plate and vertical plate of this application;

[0026] Figure 7 This is a schematic diagram of the disassembled structure of the card plate and the vertical plate in this application;

[0027] Figure 8 This is a schematic diagram of the disassembled structure of the active block and the vertical plate in this application.

[0028] Labeling Explanation: 1. Module Body; 2. Connecting Plate; 3. Limiting Slide Plate; 4. Inclined Plate; 5. Vertical Plate; 6. Locking Plate; 7. Sliding Groove; 8. Sliding Plate; 9. Locking Slot; 10. Fixing Slot; 11. Elastic Connector; 12. Guide Plate; 13. Arc-shaped Elastic Plate; 14. Actuating Plate; 15. Limiting Rod; 16. Movable Block; 17. Movable Groove; 18. Clearance Groove; 19. Fixing Plate; 20. Compression Spring; 21. Sleeve. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] The content of this application will be described in detail below with reference to the accompanying drawings and embodiments:

[0031] First Embodiment

[0032] like Figures 1-8 The diagram shows an embodiment of a pluggable power module provided in this application, including: a module body 1 that is plugged into and cooperates with a base plate; a connecting plate 2 that is slidably connected to the side of the module body 1; a limiting slide plate 3 that is obliquely distributed and fixedly connected to the end of the connecting plate 2; an inclined plate 4 that is slidably cooperates with the limiting slide plate 3 and fixedly connected to the base plate; a vertical plate 5 that is vertically movable on the base plate; a locking plate 6 that is fixedly connected to the top of the vertical plate 5; and the connecting plate 2 and the locking plate 6 that are movably cooperate.

[0033] The inner side of the card plate 6 is provided with a sliding groove 7, and the connecting plate 2 is fixedly connected with a sliding plate 8 that slides with the sliding groove 7. The vertical plate 5 is provided with a slot 9 that engages with the limiting slide plate 3. It also includes an elastic element located at the end of the limiting slide plate 3, and the inclined plate 4 is provided with a fixing groove 10 that engages with the elastic element.

[0034] The connecting plate 2 is horizontally inserted into the module body 1, and an elastic connector 11 is attached between the end of the connecting plate 2 and the module body 1. During the movement of the connecting plate 2, the elastic connector 11 can undergo elastic deformation. For example, when the connecting plate 2 moves outward, the elastic connector 11 is stretched. When the external force disappears, the elastic connector 11 can pull the connecting plate 2 to reset. In this application, the elastic connector 11 provides elastic buffering and reset functions for the connecting plate 2, reduces the rigid impact of the connecting plate 2 during insertion and removal, extends the service life of the component, and ensures that the connecting plate 2 can be in a proper position when it is not subjected to external force, which is convenient for the next insertion operation.

[0035] Furthermore, the clamping plate 6 has a U-shaped structure, and guide plates 12 with an inclined distribution are fixedly connected to both ends of the clamping plate 6. When the connecting plate 2 approaches the clamping plate 6, the guide plates 12 can guide the connecting plate 2 to smoothly enter the U-shaped clamping plate 6, so that the sliding plate 8 can be accurately aligned with the sliding groove 7. The design of the U-shaped structure and the guide plates 12 improves the accuracy of the connection between the connecting plate 2 and the clamping plate 6, reduces the difficulty of insertion, avoids damage to components due to inaccurate insertion, and improves the insertion efficiency and success rate.

[0036] The elastic component includes an arc-shaped elastic plate 13 fixedly connected to the inclined plate 4. A lever plate 14 is fixedly connected to the straight end of the arc-shaped elastic plate 13. The arc-shaped elastic plate 13 engages with the fixing groove 10. When inserted, the arc-shaped elastic plate 13 moves with the limiting slide plate 3 and its end engages with the fixing groove 10. When disconnected, the lever plate 14 is levered to deform the arc-shaped elastic plate 13 and disengage it from the fixing groove 10. The combination of the arc-shaped elastic plate 13 and the lever plate 14 achieves reliable fixing and convenient unlocking of the power module. The engagement ensures the stability of the connection, and the design of the lever plate 14 makes the unlocking operation convenient and quick, improving the maintainability of the module.

[0037] The vertical plate 5 slides against the end of the inclined plate 4. A limiting rod 15 is fixedly connected to the base plate. The limiting rod 15 moves through the vertical plate 5 and the locking plate 6 and extends into the movable groove 17. The locking plate 6 and the vertical plate 5 are both provided with a movable groove 17 for the movable block 16 to slide. The movable block 16 is slidably fitted onto the limiting rod 15, and the top of the movable block 16 protrudes from the movable groove 17 and presses against the connecting plate 2. When the connecting plate 2 moves, it pushes the movable block 16 to slide up and down along the limiting rod 15 in the movable groove 17. The movable block 16 applies a certain pressure to the connecting plate 2 to ensure the tightness of the connection. Specifically, during the insertion process, the connecting plate 2 presses down on the movable block 16, causing it to slide down along the limiting rod 15 and compress the compression spring 20. When locking is complete, the restoring force of the compression spring 20 pushes the movable block 16 upward, and its top applies a continuous upward preload force to the connecting plate 2. This force is transmitted through the connecting plate, causing the limiting slide plate 3 to fit tightly against the upper edge of the slot 9, forming a vibration-resistant dynamic interlock.

[0038] Specifically, during insertion, the connecting plate 2 presses down on the movable block 16, causing it to slide down along the limiting rod 15 and compress the compression spring 20. When locking is complete, the restoring force of the compression spring 20 pushes the movable block 16 upward, and its top applies a continuous upward preload to the connecting plate 2. This force is transmitted through the connecting plate, making the limiting slide plate 3 and the upper edge of the slot 9 fit tightly together, forming a vibration-resistant dynamic interlock.

[0039] It is worth noting that the movable block 16 is provided with a clearance groove 18. A fixed plate 19, which is inserted into and mates with the clearance groove 18, is fixedly connected to the top surface of the inner wall of the movable groove 17. A compression spring 20 is connected between the fixed plate 19 and the bottom of the movable block 16. When the movable block 16 slides in the movable groove 17, the clearance groove 18 and the fixed plate 19 move relative to each other, and the compression spring 20 is compressed or stretched, providing elastic force to the movable block 16. The compression spring 20 provides elastic buffering for the movable block 16, allowing the movable block 16 to better adapt to the movement of the connecting plate 2 during the pressing process, further enhancing the stability and reliability of the connection, while reducing wear between the components.

[0040] The movable groove 17 is connected to the slot 9. The limiting slide plate 3 and the bottom of the movable block 16 are pressed together. When the limiting slide plate 3 is inserted into the slot 9, pressure is applied to the bottom of the movable block 16, causing the movable block 16 to move in the movable groove 17. The compression spring 20 is compressed, further ensuring the stability of the insertion.

[0041] The base plate and the base plate of module body 1 are positioned opposite each other, with a space between them for insertion. A sleeve 21 is fixedly connected to the base plate, and the sleeve 21 corresponds to the reserved hole position of the base plate of module body 1. After insertion, the base plate of module body 1 falls down to contact the top of the sleeve 21. The sleeve 21 provides final vertical support and limit. It can be further reinforced by passing screws through the reserved hole and the sleeve 21.

[0042] Working principle: First, manually move the module body 1 close to the base plate and make the limiting slide plate 3 fit against the inclined plate 4. At this time, the connecting plate 2 enters the U-shaped card plate 6 through the inclined guide plate 12. It is worth noting that at this time, the sliding plate 8 at the front end of the connecting plate 2 has been initially aligned with the sliding groove 7 entrance on the card plate 6.

[0043] Then, the module body 1 continues to move closer to the base plate, the limiting slide plate 3 moves along the inclined plate 4, the arc-shaped elastic plate 13 moves accordingly, and the end of the arc-shaped elastic plate 13 rotates outward when sliding on the inclined plate 4 (a certain elastic rotation occurs), so that the sliding plate 8 produces a combined horizontal and vertical motion along the trajectory of the sliding groove 7. During this process, the vertical plate 5, the clamping plate 6, and the connecting plate 2 move vertically downward, and the connecting plate 2 moves horizontally at the same time.

[0044] At the same time, the vertical plate 5 slides relative to the limiting rod 15, and the movable block 16 moves along the movable groove 17;

[0045] Finally, continue to bring the module body 1 closer to the base plate. When the insertion is completed, the end of the limiting slide plate 3 is inserted into the slot 9, and the end of the arc-shaped elastic plate 13 is inserted into the fixing slot 10, thus completing the insertion and fixing of the module body 1 and the base plate. The top of the sleeve 21 on the base plate is in abutting contact with the bottom plate of the module body 1. The sleeve 21 corresponds to the reserved hole position of the bottom plate of the module body 1. It can be further reinforced by screws (optional).

[0046] At the same time, the limiting rod 15 passes through the movable block 16, the top of the movable block 16 presses against the connecting plate 2, the fixed plate 19 is stored in the clearance groove 18, the compression spring 20 releases its elastic potential energy, and the end of the limiting slide plate 3 is inserted into the slot 9 and enters the movable groove 17. The end of the limiting slide plate 3 is stuck on the bearing surface of the movable block 16, thereby further ensuring the stability of the insertion.

[0047] When it is necessary to disconnect the bottom plate of the module body 1 from the base plate, the locking engagement between the arc-shaped elastic plate 13 and the fixing groove 10 is released by rotating the lever plate 14, making it easier to pick up the module body 1. At the same time, under the action of the compression spring 20, the vertical plate 5 and the locking plate 6 are raised.

[0048] Second Embodiment

[0049] This embodiment provides a plug-in / plug-out operation method, applied to the pluggable power module as described in the first embodiment, the method including the following steps:

[0050] Insertion and Locking Steps: Insert the module body 1 towards the base plate, so that the limiting slide plate 3 at the end of the connecting plate 2 on the side of the module body 1 contacts and slides along the inclined plate 4 on the base plate. During this process, the inclined plate 4 and the inclined surface of the limiting slide plate 3 cooperate to decompose the horizontal insertion force, generating a component force that causes the limiting slide plate 3 to slide along the inclined surface, thereby guiding the module body 1 to be accurately aligned. This sliding is driven by the connecting plate 2 to drive the sliding plate 8 to slide in the sliding groove 7 of the locking plate 6, thereby driving the vertical plate 5 to generate vertical displacement on the base plate; the trajectory design of the sliding groove 7 makes the vertical displacement of the vertical plate 5 and the horizontal insertion stroke of the module body 1 form a predetermined cooperation, ensuring that when the module reaches the preset position, the locking groove 9 on the vertical plate 5 moves exactly to the position corresponding to the limiting slide plate 3. When the module body 1 is inserted to the preset position, the limiting slide plate 3 slides into and locks into the locking groove 9 on the vertical plate 5, and at the same time, the elastic element cooperates with the fixing groove 10 on the inclined plate 4 to complete the insertion and locking of the module body 1 and the base plate. Through the above linkage, a single linear insertion action is automatically converted into movement in multiple directions, and finally a dual locking of rigid engagement and elastic buckle is achieved, which is simple to operate and reliable in locking.

[0051] Optionally, in some embodiments, the method may further include an unlocking and unplugging step.

[0052] Specifically, the elastic element can be manipulated to disengage from the fixing groove 10; the module body 1 is moved in the opposite direction, causing the limiting slide plate 3 to disengage from the slot 9 and slide in the opposite direction along the inclined plate 4. At this time, the sliding plate 8 slides in the opposite direction within the sliding groove 7, driving the vertical plate 5 to reset, until the module body 1 separates from the base plate. This unlocking process is also achieved through mechanical linkage. First, the elastic buckle is released, and then the rigid engagement is separated through the inclined surface. The whole process is smooth and controllable, avoiding damage to the interface caused by violent insertion and removal.

[0053] Optionally, in some embodiments, during the insertion and locking step, when the movable block 16 is pressed against the connecting plate 2, the connecting plate 2 presses down on the movable block 16, compressing the compression spring 20; at the instant the limiting slide plate 3 engages with the slot 9, the movable block 16 moves upward under the restoring force of the compression spring 20, and its top generates an upward resisting force against the connecting plate 2. This resisting force interlocks with the locking force of the limiting slide plate 3 and the slot 9, enhancing the vibration resistance in the locked state. This dynamic interlocking mechanism allows the movable block 16 to continuously provide upward preload in a vibration environment, compensating for gaps that may be caused by vibration, thereby significantly improving the vibration resistance reliability of the connection.

[0054] Optionally, in some embodiments, during the initial insertion stage, the guide plate 12 guides the connecting plate 2 and the sliding plate 8 into the U-shaped opening of the retaining plate 6, ensuring that the sliding plate 8 is accurately guided into the sliding groove 7. The inclined design of the guide plate 12 provides initial guidance, enabling the sliding plate 8 to be smoothly introduced into the sliding groove 7 even in the case of blind insertion or slight misalignment, thereby improving the success rate and fault tolerance of the insertion.

[0055] Optionally, in some embodiments, during the unlocking and pulling-out step, when the elastic element is an arc-shaped elastic plate 13, the arc-shaped elastic plate 13 is elastically deformed by pulling the lever plate 14 outward, thereby disengaging from the fixing groove 10. This design makes the unlocking operation simple and effortless, and the deformation stroke of the arc-shaped elastic plate 13 provides a clear operating feel, avoiding misoperation.

[0056] The scope of this application is defined by the appended claims rather than the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices recited in a device claim may also be implemented by a single unit or device in software or hardware. Terms such as "first," "second," etc., are used only for distinguishing descriptions and do not indicate any particular order, nor should they be construed as indicating or implying relative importance.

[0057] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily made by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims, and the above embodiments should be regarded as exemplary and non-limiting.

Claims

1. A pluggable power module, comprising: The module body (1) that is plugged into the base plate is characterized in that: the module body (1) is slidably connected to a connecting plate (2) on its side, the end of the connecting plate (2) is fixedly connected to a limiting slide plate (3) that is inclined, the base plate is fixedly connected to an inclined plate (4) that is slidably engaged with the limiting slide plate (3), the base plate is vertically movable with a vertical plate (5), the top of the vertical plate (5) is fixedly connected to a locking plate (6), and the connecting plate (2) and the locking plate (6) are movablely engaged; The inner side of the card plate (6) is provided with a sliding groove (7), and the connecting plate (2) is fixedly connected with a sliding plate (8) that slides with the sliding groove (7). The vertical plate (5) is provided with a slot (9) that engages with the limiting slide plate (3). It also includes an elastic element located at the end of the limiting slide plate (3), and a fixing groove (10) that cooperates with the elastic element is provided on the inclined plate (4). The connecting plate (2) is horizontally inserted into the module body (1), and an elastic connector (11) is attached between the end of the connecting plate (2) and the module body (1). The side of the vertical plate (5) is slidably fitted with the end of the inclined plate (4), and a limit rod (15) is fixedly connected to the base plate. The limit rod (15) is movably inserted into the vertical plate (5). It also includes a movable block (16), which is slidably sleeved on the limiting rod (15). The card plate (6) and the vertical plate (5) are provided with a movable groove (17) for the movable block (16) to slide. The top of the movable block (16) passes through the movable groove (17) and presses against the connecting plate (2). The movable block (16) is provided with a clearance groove (18), and a fixed plate (19) that is inserted into the clearance groove (18) is fixedly connected to the top surface of the inner wall of the movable groove (17). A compression spring (20) is hung between the fixed plate (19) and the bottom of the movable block (16). The movable groove (17) is connected to the card slot (9), and the limiting slide plate (3) is pressed against the bottom of the movable block (16).

2. The pluggable power module according to claim 1, characterized in that: The card plate (6) has a U-shaped structure, and guide plates (12) are fixedly connected to both ends of the card plate (6) in an inclined manner.

3. A pluggable power module according to claim 1, characterized in that: The elastic element includes an arc-shaped elastic plate (13) that is fixedly connected to the inclined plate (4). A lever plate (14) is fixedly connected to the straight end of the arc-shaped elastic plate (13). The arc-shaped elastic plate (13) is engaged with the fixing groove (10).

4. A pluggable power module according to claim 1, characterized in that: The bottom plate of the module body (1) is fitted with a clearance between it and the base plate. A sleeve (21) is fixedly connected to the base plate, and the sleeve (21) corresponds to the reserved hole position of the bottom plate of the module body (1).

5. A plug-in / plug-out operation method, applied to the pluggable power module as described in claim 1, the method comprising the following steps: Insertion and locking steps: Insert the module body (1) toward the base plate, so that the limiting slide plate (3) at the end of the connecting plate (2) on the side of the module body (1) contacts the inclined plate (4) on the base plate and slides along it. This sliding drives the sliding plate (8) to slide in the sliding groove (7) of the card plate (6) through the connecting plate (2), thereby driving the vertical plate (5) to generate vertical displacement on the base plate. When the module body (1) is inserted to the preset position, the limiting slide plate (3) slides into and is locked in the card groove (9) on the vertical plate (5). At the same time, the elastic element cooperates with the fixing groove (10) on the inclined plate (4) to complete the insertion and locking of the module body (1) and the base plate.

6. The insertion and removal operation method according to claim 5, characterized in that, It also includes the unlocking and unplugging steps: Operate the elastic element to disengage it from the fixed groove (10); move the module body (1) in the opposite direction to make the limiting slide plate (3) disengage from the slot (9) and slide in the opposite direction along the inclined plate (4). At this time, the sliding plate (8) slides in the opposite direction in the sliding groove (7), driving the vertical plate (5) to reset until the module body (1) separates from the base plate.

7. The insertion and removal operation method according to claim 5, characterized in that, In the insertion locking step, when the movable block (16) and the connecting plate (2) are pressed together, the connecting plate (2) presses down on the movable block (16) and compresses the compression spring (20); when the limiting slide plate (3) is inserted into the slot (9), the movable block (16) moves upward under the restoring force of the compression spring (20), and its top generates an upward resisting force on the connecting plate (2). This resisting force interlocks with the locking force of the limiting slide plate (3) and the slot (9), enhancing the vibration resistance in the locked state.

8. The insertion and removal operation method according to claim 5, characterized in that, The card plate (6) has a U-shaped structure, and guide plates (12) are fixedly connected to both ends of the card plate (6) in an inclined distribution. In the initial stage of insertion, the guide plates (12) guide the connecting plate (2) and the sliding plate (8) into the U-shaped opening of the card plate (6) to ensure that the sliding plate (8) is accurately guided into the sliding groove (7).

9. The insertion and removal operation method according to claim 6, characterized in that, The elastic element includes an arc-shaped elastic plate (13) that is fixedly connected to the inclined plate (4), and a lever plate (14) is fixedly connected to the straight end of the arc-shaped elastic plate (13); in the unlocking and pulling out step, by levering the lever plate (14) outward, the arc-shaped elastic plate (13) undergoes elastic deformation and thus disengages from the fixing groove (10).

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