Locking device and server cabinet

Abstract

The application discloses a locking device and a server case, and relates to the technical field of computers, wherein the locking device comprises: a locking mechanism which is telescopically arranged on a first base body in a first direction, and the first base body is provided with a slot extending in a second direction; a matching mechanism which is arranged on a second base body inserted into or pulled out of the slot in the second direction, and the matching mechanism comprises: a first positioning assembly which is configured to slide with the second base body and drive the locking mechanism to shrink in a direction away from the matching mechanism, so that the locking mechanism passes the first positioning assembly and cooperates with a clamping portion of the matching mechanism, and is in a locked state of preventing the second base body from moving relative to the first base body; and a second positioning assembly which is configured to slide relative to the second base body in the second direction and drive the locking mechanism to be separated from the clamping portion, and is in an unlocked state of allowing the second base body to be separated from the first base body. Through the arrangement of the locking mechanism and the matching mechanism, the technical problem of complicated disassembly and assembly can be solved, and the effect of quick disassembly and assembly is achieved.

Description

Technical Field

[0001] The present application relates to the field of computer technology, and in particular to a locking device and a server chassis. Background Art

[0002] Servers can provide services such as data storage, processing, distribution, and resource sharing. Servers usually have various hardware components such as network cards and hard drives.

[0003] Due to data migration or routine maintenance, some hardware components need to be disassembled and replaced. Hardware components are typically installed on the server using screws. However, installing these screws requires a screwdriver, and the large number of screws makes the process cumbersome and prevents quick disassembly and assembly. Furthermore, limited operating space makes disassembly and assembly inconvenient, significantly affecting disassembly and assembly efficiency. Summary of the Invention

[0004] The present application provides a locking device and a server chassis to at least solve the problem in the related art that the operation process is cumbersome, rapid disassembly and assembly cannot be achieved, and the disassembly and assembly efficiency is affected, so as to achieve the effect of convenient operation, rapid disassembly and assembly, and improved disassembly and assembly efficiency.

[0005] The present application provides a locking device, comprising: a locking mechanism, which is telescopically arranged on a first base in a first direction, and the first base is provided with a slot extending in a second direction; and a mating mechanism, which is arranged on a second base inserted into or pulled out of the slot in the second direction, and the mating mechanism comprises: a first positioning component, which is constructed to slide with the second base and drive the locking mechanism to shrink in a direction away from the mating mechanism, so that the locking mechanism passes over the first positioning component and cooperates with the engaging portion of the mating mechanism to be in a locked state that prevents the second base from moving relative to the first base; and a second positioning component, which is constructed to slide relative to the second base in the second direction to drive the locking mechanism to disengage from the engaging portion and be in an unlocked state that allows the second base to be separated from the first base.

[0006] The present application also provides a server chassis, comprising: a case body, provided with a slot extending in a second direction; a bracket, configured to mount an electronic component so as to be inserted into or removed from the slot in the second direction; and a locking device as described above, wherein the locking mechanism of the locking device is telescopically arranged on the case body in a first direction, and the mating mechanism is arranged on the bracket, having a locked state that prevents the bracket from moving relative to the case body and an unlocked state that allows the bracket to be separated from the case body.

[0007] According to the present invention, when the second base slides in the second direction toward the first base, the matching mechanism slides with the second base, the first positioning assembly contacts the locking mechanism, and drives the locking mechanism to retract in a direction away from the matching mechanism, causing the locking mechanism to move past the first positioning assembly to the position of the engaging portion. At this time, the first positioning assembly is located on one side of the locking mechanism and the external force on the locking mechanism is eliminated, causing the locking mechanism to extend and insert into the engaging portion, thereby engaging with the engaging portion to enter a locked state that prevents the second base from moving relative to the first base, without the need to install a connecting assembly to achieve locking. When it is necessary to separate the second base from the first base, an external force is applied to drive the second positioning assembly to slide in the second direction toward the locking mechanism, causing the locking mechanism to retract and disengage from the engaging portion, thereby allowing the matching mechanism to slide with the second base away from the first base, and enter an unlocked state that allows the second base to be separated from the first base. Therefore, the technical problems of complex disassembly and assembly and low operating efficiency can be solved, and the technical effects of convenient operation, rapid disassembly and assembly, and improved disassembly and assembly efficiency can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0009] Figure 1 A three-dimensional schematic diagram of a locking device provided in an embodiment of the present application;

[0010] Figure 2 A partial diagram of a server chassis provided in an embodiment of the present application;

[0011] Figure 3 A side view of a locking device provided in an embodiment of the present application;

[0012] Figure 4 A side view of the locking device provided in an embodiment of the present application in an unlocked state;

[0013] Figure 5 An exploded view of the locking mechanism provided in an embodiment of the present application;

[0014] Figure 6 An exploded view of the mating mechanism provided in an embodiment of the present application;

[0015] Figure 7 Another partial diagram of the server chassis provided in an embodiment of the present application;

[0016] Figure 8 This is an exploded view of the abutment assembly provided in an embodiment of the present application.

[0017] The above drawings include the following reference numerals:

[0018] 1. Locking mechanism; 11. Mounting assembly; 111. Mounting seat; 1111. Limiting ring groove; 1112. Through hole; 1113. Accommodating space; 112. Limiting assembly; 1121. Limiting ring portion; 1122. Limiting protrusion; 1123. Notch; 113. Limiting hole; 12. Locking assembly; 121. Locking portion; 122. Connecting portion; 123. Limiting portion; 13. Telescopic assembly; 2. Matching mechanism; 21. First positioning group Component; 22. Second positioning component; 221. Guide portion; 222. Sliding portion; 223. Driving component; 2231. Pressing portion; 2232. Resetting component; 23. Base; 231. Guide groove; 24. Engaging portion; 25. Combining portion; 31. First inclined surface; 32. Second inclined surface; 4. Box body; 41. Slot; 5. Bracket; 51. Stopper component; 6. Abutting component; 61. First elastic component; 62. Second elastic component. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] It should be noted that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely for ease of description and simplification of the present application. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present application. The terms "mounted," "connected," and "connected" should be interpreted broadly, and may include, for example, fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. The terms "parallel," "perpendicular," and "equal" encompass the described conditions and conditions similar to the described conditions, provided that the range of the similar conditions is within an acceptable range of deviation, as determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes both absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism may be, for example, within 5°; "perpendicular" includes both absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity may also be, for example, within 5°. "Equal" includes both absolute equality and approximate equality, where the acceptable deviation range for approximate equality may be, for example, that the difference between the two is less than or equal to 5% of either. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0021] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0022] Servers typically have various hardware components, such as network cards and hard drives. These components may need to be disassembled and replaced for data migration or routine maintenance. In related art, these components are mounted to servers using screws. These screws require a screwdriver, and the large number of screws makes the process cumbersome and prevents quick assembly and disassembly. Furthermore, servers have limited operating space, making assembly and disassembly inconvenient and significantly impacting assembly and disassembly efficiency.

[0023] A first aspect of the present application provides a locking device, and the locking device is described in detail in combination with its structure and working principle.

[0024] Reference Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the locking device includes a locking mechanism 1 and a matching mechanism 2. The locking mechanism 1 is telescopically arranged on the first base in a first direction, and the first base is provided with a slot 41 extending in a second direction. The matching mechanism 2 is arranged on the second base that is inserted into or pulled out of the slot 41 in the second direction. The matching mechanism 2 includes a first positioning component 21 and a second positioning component 22. The first positioning component 21 is configured to slide with the second base and drive the locking mechanism 1 to retract in a direction away from the matching mechanism 2, so that the locking mechanism 1 passes over the first positioning component 21 and matches with the engaging portion 24 of the matching mechanism 2 to be in a locked state that prevents the second base from moving relative to the first base. The second positioning component 22 is configured to slide relative to the second base in the second direction to drive the locking mechanism 1 to disengage the engaging portion 24 and be in an unlocked state that allows the second base to separate from the first base.

[0025] Specifically, the locking device can be installed on a server chassis. The first base represents the server chassis. The second base represents a bracket 5 for mounting hardware components on the server. The server chassis is provided with a slot 41 for inserting the bracket 5, which extends in the second direction. Thus, the bracket 5 with the mounted hardware components can be inserted into the slot 41 for installation, or removed from the slot 41 for removal. It is understood that the locking device can also be used on electronic devices such as computer mainframes and workstations.

[0026] The first substrate is placed horizontally, and the first direction can be a vertical direction ( Figure 1 The second direction and the first direction may form an angle, and the angle range may be 80 degrees to 110 degrees, such as 80 degrees, 85 degrees, 90 degrees, 95 degrees, 100 degrees, 105 degrees, 110 degrees, etc., which is not limited here and is determined according to actual needs. Figure 1 As shown, the locking device is arranged vertically and the matching mechanism 2 is arranged horizontally.

[0027] The locking mechanism 1 may include, but is not limited to, a spring, a telescopic tube, a combination of a spring and a slider and a slot, or any other connecting component that is telescopically disposed on the first base, with the slot 41 extending horizontally. The second base can be slidably inserted into or removed from the slot 41.

[0028] The mating mechanism 2 is disposed on the second base, meaning that it can slide with the second base. The mating mechanism 2 includes a first positioning assembly 21 and a second positioning assembly 22. The first positioning assembly 21 extends in the second direction and moves with the second base. The second positioning assembly 22 can be slidably disposed on the second base via, but not limited to, a slider and a slide groove, a slide rail, a guide rod, or any other sliding assembly, to slide relative to the second base and the first positioning assembly 21 in the second direction.

[0029] Reference Figure 2 and Figure 3 As shown, during the process of the mating mechanism 2 being inserted into the slot 41 along with the second base, the first positioning assembly 21 slides along with the second base and slides relative to the locking mechanism 1, and drives the locking mechanism 1 in a direction away from the mating mechanism 2 ( Figure 1 In this way, refer to Figure 1 As shown, the locking mechanism 1 slides relative to the first positioning assembly 21 and passes over the first positioning assembly 21 to the position of the engaging portion 24. At this time, the first positioning assembly 21 is located on one side of the locking mechanism 1, eliminating the external force on the locking mechanism 1, causing the locking mechanism 1 to extend and insert into the engaging portion 24, thereby engaging with the engaging portion 24 to enter a locked state that prevents the second base from moving relative to the first base. In this way, as the second base is inserted into the slot 41, the locking mechanism 1 inserts into the engaging portion 24 of the mating mechanism 2, achieving a locking state that prevents the second base from moving relative to the first base. This eliminates the need to install a connecting assembly to achieve locking, making operation convenient.

[0030] Reference Figure 4 As shown, when the second base is separated from the first base, an external force is applied to drive the second positioning assembly 22 in the second direction toward the direction close to the locking mechanism 1 ( Figure 4 The locking mechanism 1 is driven to contract, that is, to move away from the engaging portion 24 ( Figure 4 In this way, the matching mechanism 2 can be allowed to slide along with the second base body in a direction away from the first base body, and be in an unlocked state allowing the second base body to be separated from the first base body.

[0031] In such an embodiment, by providing the locking mechanism 1 and the mating mechanism 2, during the process of locking the first substrate with the second substrate, the mating mechanism 2 slides along with the second substrate in the second direction, enabling the locking mechanism 1 to engage with the engaging portion 24 of the mating mechanism 2, thereby locking the second substrate with the first substrate. This eliminates the need for installing a connecting assembly to achieve locking, thereby achieving a convenient operation effect. During the process of disassembling and separating the second substrate from the first substrate, an external force is applied to the second positioning assembly 22 to slide toward the locking mechanism 1, thereby driving the locking mechanism 1 to disengage the engaging portion 24, achieving an unlocked state that allows the second substrate to be separated from the first substrate. This eliminates the need for tools such as screwdrivers, resulting in convenient operation and achieving the effect of rapid disassembly and assembly and improved disassembly efficiency.

[0032] In some exemplary embodiments, referring to Figure 1 、 Figure 3 and Figure 4As shown, the mating mechanism 2 includes a base 23 mounted on a second base. A first positioning assembly 21 is disposed on a side of the base 23 close to the locking mechanism 1. A second positioning assembly 22 is slidably disposed between the first positioning assembly 21 and the base 23. The space between the first positioning assembly 21 and the second positioning assembly 22 forms a snap-fit ​​portion 24.

[0033] Specifically, the base 23 is mounted to the second base body via, but not limited to, a threaded connection, a snap-fit ​​assembly, welding, or any other connection method. The first positioning assembly 21 is mounted to the side of the base 23 near the locking mechanism 1 via, but not limited to, a threaded connection, a snap-fit ​​assembly, welding, or any other connection method. The second positioning assembly 22 is disposed between the first positioning assembly 21 and the base 23 via, but not limited to, a slider and a slide groove, a slide rail, or any other sliding assembly.

[0034] It should be noted that the inwardly recessed space between the first positioning assembly 21 and the second positioning assembly 22 forms the engaging portion 24. Specifically, in the locked state, the first positioning assembly 21 and the second positioning assembly 22 are spaced apart with a gap therebetween, and the gap is recessed inwardly relative to the first positioning assembly 21 and the second positioning assembly 22, thereby forming a space for accommodating the locking mechanism 1.

[0035] When the locking mechanism 1 is located in the engaging portion 24 , the first positioning component 21 and the second positioning component 22 are respectively located on both sides of the locking mechanism 1 , thereby preventing the matching mechanism 2 from moving relative to the locking mechanism 1 in the second direction and being in a locked state.

[0036] Furthermore, the second positioning assembly 22 can slide between the first positioning assembly 21 and the base 23, so the length of the engaging portion 24 in the second direction changes as the second positioning assembly 22 moves. During adjustment to the unlocked state, as the second positioning assembly 22 moves toward the locking mechanism 1, the length of the engaging portion 24 gradually decreases. At the same time, the second positioning assembly 22 drives the locking mechanism 1 to retract in a direction away from the mating mechanism 2, causing the locking mechanism 1 to disengage from the engaging portion 24, thereby entering the unlocked state that allows the second base to separate from the first base.

[0037] In such an embodiment, during adjustment to the unlocked state, an external force is applied to the second positioning assembly 22 to slide toward the locking mechanism 1, thereby reducing the space of the engaging portion 24 to disengage the locking mechanism 1 from the engaging portion 24, making the operation convenient and achieving quick disassembly.

[0038] In some exemplary embodiments, referring to Figure 3 、 Figure 4 and Figure 5As shown, the locking mechanism 1 includes a mounting assembly 11, a locking assembly 12, and a telescopic assembly 13. The mounting assembly 11 is disposed on a first base. The locking assembly 12 is slidably disposed on the mounting assembly 11 in a first direction. The telescopic assembly 13 is elastically disposed between the mounting assembly 11 and the locking assembly 12, allowing the locking assembly 12 to move toward the mating mechanism 2. As the first positioning assembly 21 or the second positioning assembly 22 slides toward the locking assembly 12 in the second direction, the elastic force of the telescopic assembly 13 is counteracted, driving the locking assembly 12 to slide in the first direction away from the mating mechanism 2.

[0039] Specifically, the mounting assembly 11 includes, but is not limited to, being mounted on the first base body via a threaded connection, a snap-fit ​​assembly, welding, or any other connection method. The locking assembly 12 includes, but is not limited to, being disposed on the mounting assembly 11 via a slider and a slide groove, a slide rail, or any other sliding assembly to slide back and forth in the first direction.

[0040] The telescopic assembly 13 can be a spring, a rubber strip, an elastic cord, etc., depending on actual needs. The telescopic assembly 13 is elastically disposed between the mounting assembly 11 and the locking assembly 12, exerting an elastic force on the locking assembly 12 toward the mating mechanism 2, causing the locking assembly 12 to move toward the mating mechanism 2.

[0041] Specifically, refer to Figure 3 and Figure 5 As shown, when the locking mechanism 1 is not subjected to external force, the locking assembly 12 is in a lowered state under the elastic force of the telescopic assembly 13. When the second positioning assembly 22 slides in the second direction toward the locking assembly 12, the first positioning assembly 21 resists the elastic force of the telescopic assembly 13 and drives the locking assembly 12 in a direction away from the matching mechanism 2 ( Figure 4 The locking assembly 12 is in an upward state.

[0042] When the locking assembly 12 is opposite to the engaging portion 24, the first positioning assembly 21 is located on one side of the locking assembly 12 and loses the external force acting on the locking assembly 12. Under the elastic force of the telescopic assembly 13, the locking assembly 12 is automatically driven downward, so that the locking assembly 12 is inserted into the engaging portion 24, and the locking assembly 12 and the engaging portion 24 are engaged, thereby achieving a relatively fixed locking state of the second base and the first base.

[0043] When the second positioning assembly 22 drives the locking assembly 12 to disengage from the engaging portion 24, the second positioning assembly 22 moves toward the direction close to the locking assembly 12, thereby counteracting the elastic force of the telescopic assembly 13, driving the locking assembly 12 to move toward the direction away from the engaging portion 24 and disengage from the engaging portion 24, thereby adjusting to an unlocked state that allows the second base to be separated from the first base.

[0044] In such an embodiment, when the second base is inserted into the slot 41 of the first base, the first positioning component 21 of the matching mechanism 2 moves with the second base, and can automatically drive the locking component 12 to rise. When the locking component 12 is opposite to the engaging portion 24, the telescopic component 13 can automatically drive the locking component 12 to be lowered and inserted into the engaging portion 24, thereby automatically achieving locking. When the second base is disassembled from the first base, an external force is applied to the second positioning component 22 in the direction close to the locking component 12 to counteract the elastic force of the telescopic component 13, driving the locking component 12 to rise and disengage from the engaging portion 24, thereby achieving unlocking. In this way, there is no need to achieve locking by installing a connecting component, and no external tools are needed, which greatly reduces the complexity of disassembly and assembly, and achieves the technical effects of convenient operation, rapid disassembly and assembly, and improved disassembly and assembly efficiency.

[0045] In some exemplary embodiments, referring to Figure 1 、 Figure 3 and Figure 4 As shown, a first inclined surface 31 is provided on the side of the locking assembly 12 where it slides with the first positioning assembly 21 or the second positioning assembly 22; and / or a second inclined surface 32 is provided on the side of the first positioning assembly 21 and the second positioning assembly 22 where they slide with the locking assembly 12. The first inclined surface 31 and the second inclined surface 32 are formed to be inclined in the direction in which the mating mechanism 2 moves toward the locking assembly 12.

[0046] Specifically, refer to Figure 3 and Figure 5 As shown, in one embodiment, a first inclined surface 31 is provided on the left side of the locking assembly 12. When the first positioning assembly 21 and the second positioning assembly 22 move toward the locking assembly 12, the first inclined surface 31 provided on the locking assembly 12 can resist the elastic force of the telescopic assembly 13 during the relative sliding of the first positioning assembly 21 and the second positioning assembly 22 and the locking assembly 12, causing the locking assembly 12 to move in the first direction away from the mating mechanism 2.

[0047] When the locking assembly 12 is disengaged from the engaging portion 24 and is in an unlocked state, the mating mechanism 2 moves with the second base in a direction away from the first base. During the sliding contact between the first inclined surface 31 of the locking assembly 12 and the first positioning assembly 21, due to the elastic force of the telescopic assembly 13, the locking mechanism 1 will assist the mating mechanism 2 to move in a direction away from the locking mechanism 1, further assisting the second base to move out of the slot 41 of the first base, further improving the convenience of operation and improving the efficiency of disassembly and replacement.

[0048] The first positioning component 21 and the second positioning component 22 are in sliding contact with the locking component 12 on one side ( Figure 3 A second inclined surface 32 is provided on the right side of the first positioning component 21 and the second positioning component 22. The principle is the same as above and will not be repeated here.

[0049] In some exemplary embodiments, referring to Figure 3 、 Figure 4 and Figure 6 As shown, the base 23 is provided with a guide groove 231 extending in the second direction.

[0050] The second positioning assembly 22 includes a guide portion 221 and a sliding portion 222. The guide portion 221 is slidably disposed in the guide groove 231 in the second direction. The sliding portion 222 is disposed on the guide portion 221 and is located between the first positioning assembly 21 and the base 23. Driven by an external force, the sliding portion 222 slides back and forth in the second direction along with the guide portion 221, so that in the process of sliding toward the first positioning assembly 21, the locking mechanism 1 is driven to retract in the direction away from the engaging portion 24 and disengage from the engaging portion 24. The first inclined surface 31 can be disposed on the side where the sliding portion 222 and the locking assembly 12 are in sliding contact with each other ( Figure 4 on the right side of the middle sliding portion 222).

[0051] In detail, the guide groove 231 extends in the second direction, and one, two, three, four, etc. guide grooves 231 can be provided, which is determined according to actual needs.

[0052] In such an embodiment, the guide portion 221 cooperates with the guide groove 231 and is slidably disposed in the guide groove 231 to guide the sliding portion 222 to slide back and forth in the second direction, thereby reducing the degree of shaking of the sliding portion 222 during the sliding process and improving the smoothness of the movement of the sliding portion 222.

[0053] Furthermore, during the sliding process toward the first positioning component 21, the sliding portion 222 comes into sliding contact with the locking component 12, and drives the locking component 12 to retract in a direction away from the engaging portion 24 and disengage from the engaging portion 24, which is easy to operate and can be quickly disassembled.

[0054] In some exemplary embodiments, referring to Figure 1 、 Figure 3 and Figure 4 As shown, the second positioning assembly 22 includes a driving assembly 223, which is constructed to drive the second positioning assembly 22 to move to a first position toward the direction close to the first positioning assembly 21, so that the locking mechanism 1 disengages from the engaging portion 24 and is in an unlocked state, or drives the second positioning assembly 22 to move to a second position toward the direction away from the first positioning assembly 21, allowing the locking mechanism 1 to be located in the engaging portion 24 and be in a locked state.

[0055] In detail, the driving mechanism can apply external force in two directions to the second positioning component 22, namely, applying external force toward the direction close to the first positioning component 21 and applying external force toward the direction away from the first positioning component 21, so as to realize the movement of the second positioning component 22 between the first position and the second position.

[0056] Reference Figure 4 As shown, the second positioning assembly 22 moves from left to right to the first position to drive the locking assembly 12 to move upward and disengage the engaging portion 24. Figure 1 and Figure 3 As shown, the driving mechanism drives the second positioning assembly 22 to move away from the first positioning assembly 21 to the second position and reset, allowing the locking assembly 12 to be inserted into the engaging portion 24 and be in a locked state.

[0057] In such an embodiment, by providing a driving mechanism, it is convenient to drive the second positioning component 22 to move between the first position and the second position, and it is convenient to control the second positioning component 22 to be adjusted to the unlocked state or the locked state.

[0058] In some exemplary embodiments, referring to Figure 1 、 Figure 3 、 Figure 4 and Figure 6 As shown, the driving assembly 223 includes a pressing portion 2231 and a reset assembly 2232. The pressing portion 2231 is located on the side of the base 23 facing away from the first positioning assembly 21 and is connected to the guide portion 221. Under the action of an external force, the second positioning assembly 22 is driven to move to the first position. The reset assembly 2232 is telescopically disposed between the pressing portion 2231 and the base 23. When the external force is removed, the reset assembly 2232 drives the second positioning assembly 22 to move to the second position.

[0059] Specifically, the pressing portion 2231 includes but is not limited to being connected to the end of the guide portion 221 away from the sliding portion 222 by threaded connection, snap assembly, welding or any other connection method. Figure 6 Specifically, the guide portion 221 passes through the base 23 through the guide groove 231, so that the pressing portion 2231 is connected to the end of the guide portion 221 away from the sliding portion 222.

[0060] The reset component 2232 may be a spring, a rubber block, etc., which is determined according to actual needs. The reset component 2232 applies an external force to the pressing portion 2231 and the base 23 in a direction away from each other.

[0061] In such an embodiment, an external force is applied to the pressing portion 2231 in a direction toward the first positioning assembly 21, counteracting the elastic force of the reset assembly 2232, causing the reset assembly 2232 to compress and drive the second positioning assembly 22 to move to the first position. Simultaneously, the second positioning assembly 22 drives the locking assembly 12 to move away from the engaging portion 24, disengaging the engaging portion 24 and arranging the locking assembly 12 into the unlocked state. During the process of resetting the second positioning assembly 22 to the second position, the external force applied to the pressing portion 2231 is removed, causing the reset assembly 2232 to extend and drive the second positioning assembly 22 to move away from the first positioning assembly 21, thereby resetting the locking assembly 12 to the engaging portion 24 and allowing the locking assembly 12 to be positioned in the locked state. In this way, the second positioning assembly 22 is reset to the second position without the need for operator intervention, further improving operational convenience, enabling rapid assembly and disassembly, and improving assembly and disassembly efficiency.

[0062] In some exemplary embodiments, referring to Figure 4 and Figure 6 As shown, the first positioning assembly 21 is connected to the base 23 via the coupling portion 25. In the locked state, two sides of the locking mechanism 1 abut against the first positioning assembly 21 and the sliding portion 222 respectively.

[0063] Specifically, the first end of the coupling portion 25 is connected to the first positioning assembly 21. The second end of the coupling portion 25 is mounted on the base 23 via, but not limited to, a threaded connection, a snap assembly, or any other connection method. Specifically, the coupling portion 25 is connected to the base 23 through the sliding and guiding portion 221.

[0064] In this way, the first positioning assembly 21, the second positioning assembly 22 and the driving assembly 223 are integrated with the base 23, with a compact structure and high integration, which reduces the volume of the matching mechanism 2, facilitates installation on the second base, and reduces the overall volume.

[0065] Furthermore, in the locked state, both sides of the locking assembly 12 abut against the first positioning assembly 21 and the sliding portion 222, respectively. Thus, when the second base is subjected to an external force that pulls it outward from the slot of the first base, the locking assembly 12 is located within the engaging portion 24, and the first positioning assembly 21 abuts against the locking assembly 12, thereby preventing the second base from moving outward relative to the slot. When the second base is subjected to an external force that moves it inward toward the slot, the slot and the sliding portion 222 simultaneously limit the second base, preventing it from further moving into the slot. In this way, the second base is prevented from sliding relative to the first base in the second direction, thereby achieving locking.

[0066] In some exemplary embodiments, referring to Figure 3 and Figure 6As shown, the coupling portion 25 is a rod-shaped structure extending in the second direction, and the guide portion 221 and the sliding portion 222 are sleeved outside the coupling portion 25 , so that the coupling portion 25 guides the sliding portion 222 to slide.

[0067] In this way, by setting a rod-shaped structure coupling part 25, the coupling part 25 extends in the second direction, and the guide part 221 and the sliding part 222 are arranged outside the coupling part 25 and slide in the second direction, the coupling part 25 can guide the guide part 221 and the sliding part 222, further reducing the degree of shaking during the movement, and improving the smoothness of the movement of the guide part 221 and the sliding part 222.

[0068] It is understandable that the first positioning assembly 21 and the second positioning assembly 22 can also convert movement in the second direction into movement in the first direction through a connecting rod mechanism, a gear and a rack assembly to drive the locking assembly 12 to move in the first direction.

[0069] In some exemplary embodiments, referring to Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the mounting assembly 11 of the locking mechanism 1 includes a mounting seat 111 and a limiting assembly 112. The mounting seat 111 is disposed in the slot 41 of the first base. The limiting assembly 112 is disposed on the mounting seat 111 and is provided with a limiting hole 113 extending in the first direction. The locking assembly 12 is slidably disposed in the limiting hole 113.

[0070] In detail, the mounting base 111 is mounted on the first base body including but not limited to threaded connection, snap assembly, welding or any other connection method.

[0071] The limiting mechanism is disposed on the mounting seat 111 and is provided with a limiting hole 113 extending in the first direction. The limiting hole 113 cooperates with the locking assembly 12 so that the locking assembly 12 can be slidably disposed in the limiting hole 113 .

[0072] It should be noted that the limiting hole 113 can be rectangular, polygonal or irregularly shaped, etc., which is not limited here. It is determined according to actual needs and must also satisfy the requirement of limiting the locking component 12 to prevent the locking component 12 from rotating relative to the mounting seat 111.

[0073] In this way, when the locking assembly 12 slides back and forth in the first direction driven by the first positioning assembly 21, the second positioning assembly 22 and the telescopic assembly 13, the limiting hole 113 guides the locking assembly 12 to improve the sliding smoothness of the locking assembly 12.

[0074] In some exemplary embodiments, referring to Figure 5As shown, an accommodating space 1113 is formed inside the mounting seat 111 , and a limiting ring groove 1111 is provided on the outer wall of the mounting portion. The limiting ring groove 1111 is provided with a through hole 1112 communicating with the accommodating space 1113 .

[0075] Specifically, the mounting base 111 may be a tubular structure, and the internal cavity of the mounting base 111 forms an accommodating space 1113 for accommodating the telescopic assembly 13 and at least a portion of the locking assembly 12. A limiting annular groove 1111 is provided on the outer wall of the mounting base 111. A through hole 1112 communicating with the accommodating space 1113 is provided at the location of the limiting annular groove 1111. Specifically, the through hole 1112 extends through the side wall of the mounting base 111 to communicate with the accommodating space 1113.

[0076] The limiting assembly 112 includes a limiting ring portion 1121 and a limiting protrusion 1122. The limiting ring portion 1121 is constructed as an annular structure with a notch 1123, which is removably embedded in the limiting ring groove 1111. The limiting protrusion 1122 is provided on the inner wall of the limiting ring portion 1121, passing through the through hole 1112 and at least partially located in the accommodating space 1113, forming the limiting hole 113.

[0077] In detail, the limiting ring portion 1121 is made of an elastic material, such as spring steel, stainless steel, plastic, etc., which can satisfy the requirement of applying external force to the limiting ring portion 1121, so that the diameter of the notch 1123 is increased and is sleeved in the limiting ring groove 1111 of the mounting seat 111, which is easy to disassemble and replace.

[0078] The limiting protrusion 1122 is provided on the inner wall of the limiting ring portion 1121 and extends toward the center of the limiting ring portion 1121. The number of limiting protrusions 1122 can be one, two, three, or four, depending on actual needs. When the limiting ring portion 1121 is inserted into the limiting ring groove 1111, the limiting protrusion 1122 passes through the through hole 1112 and is at least partially located in the accommodating space 1113, forming the limiting hole 113.

[0079] Thus, the limiting protrusion 1122 extends through the through hole 1112 into the accommodating space 1113 to form the limiting hole 113, thereby limiting the position of the locking assembly 12 and guiding the locking assembly 12 to slide in the first direction. Due to the sliding contact between the locking assembly 12 and the limiting protrusion 1122, wear occurs. By providing the limiting ring portion 1121 and the limiting protrusion 1122, it is easy to replace the limiting assembly 112 and the locking assembly 12, improving the convenience of disassembly and replacement.

[0080] In some exemplary embodiments, referring to Figure 1 、 Figure 3 and Figure 5As shown, the locking assembly 12 includes a locking portion 121, a connecting portion 122 and a limiting portion 123. The locking portion 121 is constructed to be in sliding contact with the first positioning assembly 21 and the second positioning assembly 22. The connecting portion 122 is connected to the end of the locking portion 121 away from the mating mechanism 2, and the connecting portion 122 is slidably engaged with the limiting hole 113. The limiting portion 123 is provided on the connecting portion 122 and is spaced apart from the locking portion 121, so that the limiting assembly 112 is located between the locking portion 121 and the limiting portion 123, allowing the connecting portion 122 to move relative to the limiting assembly 112. The cross-section of the locking portion 121 and the cross-section of the limiting portion 123 are larger than the caliber of the limiting hole 113, so as to limit the locking assembly 12 in the first direction.

[0081] For details, refer to Figure 3 and Figure 5 As shown, the connecting portion 122 extends in the first direction, passes through the limiting hole 113, and slides with the limiting hole 113. The locking portion 121 is connected to one end of the connecting portion 122 close to the matching mechanism 2 ( Figure 5 The limiting portion 123 is connected to the end of the connecting portion 122 away from the mating mechanism 2 and is spaced apart from the locking portion 121 so that the limiting assembly 112 is located between the locking portion 121 and the limiting portion 123.

[0082] In this embodiment, because the limiting portion 123 is spaced apart from the locking portion 121, the limiting assembly 112 is positioned between the locking portion 121 and the limiting portion 123, allowing the connecting portion 122 to move relative to the limiting assembly 112. Specifically, the distance between the limiting portion 123 and the locking portion 121 is greater than the thickness of the limiting assembly 112, allowing the locking assembly 12 to slide back and forth in the first direction. The cross-sections of the locking portion 121 and the limiting portion 123 are greater than the diameter of the limiting hole 113, thereby limiting the sliding movement of the locking assembly 12 in the first direction. Specifically, when the limiting portion 123 contacts the limiting assembly 112, the locking assembly 12 moves to the position closest to the mating mechanism 2, allowing the locking portion 121 to be positioned within the engaging portion 24 and engage with the engaging portion 24. When the locking portion 121 contacts the limiting assembly 112, the locking assembly 12 moves to the position farthest from the mating mechanism 2, allowing the locking portion 121 to disengage from the engaging portion 24.

[0083] A second aspect of the present application provides a server chassis, and the server chassis is described in detail in combination with the structure and working principle of the server chassis.

[0084] Reference Figure 2 and Figure 7As shown, the server chassis includes a housing 4, a bracket 5, and the locking device described above. The housing 4 is provided with a slot 41 extending in a second direction. The bracket 5 is configured to receive an electronic component and to slide relative to the slot 41 in the second direction. The locking device includes a locking mechanism 1 that is telescopically mounted on the housing 4 in a first direction, and a mating mechanism 2 that is mounted on the bracket 5. The locking device has a locked state that prevents relative movement between the bracket 5 and the housing 4, and an unlocked state that allows separation of the bracket 5 from the housing 4.

[0085] For details, refer to Figure 2 As shown, the housing 4 is placed horizontally, and the slot 41 of the housing 4 extends horizontally. The bracket 5 is provided with a receiving slot for accommodating electronic components such as a network card and a hard disk. The bracket 5, with the electronic components installed, can slide in a second direction relative to the slot 41 to be inserted into or removed from the slot 41.

[0086] Furthermore, the locking mechanism 1 is retractably disposed on the housing 4 in a first direction. It will be appreciated that the locking mechanism 1 can be disposed in the notch area of ​​the slot 41 of the housing 4 to facilitate engagement with the mating mechanism 2. The mating mechanism 2 is disposed on the bracket 5 and has a locked state that prevents relative movement between the bracket 5 and the housing 4, and an unlocked state that allows separation of the bracket 5 from the housing 4.

[0087] Specifically, refer to Figure 1 、 Figure 2 and Figure 7 As shown, when the bracket 5 slides into the slot 41 and is inserted into place, the first positioning component 21 of the mating mechanism 2 slides relative to the locking mechanism 1 and drives the locking mechanism 1 to retract in the direction away from the mating mechanism 2, so that the locking mechanism 1 moves over the first positioning component 21 to the position of the engaging portion 24. At this time, the first positioning component 21 is located on one side of the locking mechanism 1 and the external force on the locking mechanism 1 is cancelled, so that the locking mechanism 1 stretches and inserts into the engaging portion 24, thereby engaging with the engaging portion 24 to be in a locked state that prevents the bracket 5 from moving relative to the box body 4.

[0088] When the bracket 5 needs to be pulled out of the slot 41 of the box body 4 and separated from the box body 4, an external force is applied to drive the second positioning component 22 to slide in the second direction toward the locking mechanism 1, so that the locking mechanism 1 contracts and disengages from the engaging portion 24, thereby allowing the matching mechanism 2 to slide with the bracket 5 in the direction away from the box body 4 and be in an unlocked state allowing the bracket 5 to be separated from the box body 4, thereby achieving the effects of convenient operation, rapid disassembly and assembly, and improved disassembly and assembly efficiency.

[0089] It should be noted that the housing 4 can be the first base described above. The bracket 5 can be the second base described above. Based on similar inventive concepts, the server chassis has similar or identical features to the above embodiments and also has similar or identical functions based on these features. Therefore, they are not further described.

[0090] In some exemplary embodiments, referring to Figure 2 and Figure 7 As shown, the bracket 5 includes a stopper assembly 51 , which is larger than the diameter of the slot 41 . In the locked state, the stopper assembly 51 abuts against the box body 4 to prevent the bracket 5 from being further inserted into the slot 41 .

[0091] In detail, the stopper assembly 51 includes but is not limited to being installed on the bracket 5 by bolts, snap-fit ​​assemblies, welding or any other connection method.

[0092] In this embodiment, in the locked state, the stop assembly 51 is positioned at the notch of the bracket 5 within the slot 41, abutting against the housing 4. This way, the stop assembly 51 limits the bracket 5 in the second direction, preventing further insertion of the bracket 5 into the slot 41. Simultaneously, the locking device limits the bracket 5 in the second direction, preventing it from being removed from the slot 41. The stop assembly 51 cooperates with the locking device to prevent both further insertion and removal of the bracket 5 from the slot 41, thereby enhancing the stability of the bracket 5 locked relative to the housing 4.

[0093] In some exemplary embodiments, referring to Figure 2 、 Figure 7 and Figure 8 As shown, the bracket 5 includes an abutment assembly 6 , which can be elastically disposed between the bracket 5 and the inner wall of the slot 41 in a locked state.

[0094] The abutment assembly 6 includes a first elastic member 61 and a second elastic member 62. The first elastic member 61 is disposed on the side of the bracket 5 facing the inner wall of the slot 41. The second elastic member 62 is disposed on the first elastic member 61 and is constructed as a hollow arc-shaped structure. In the locked state, the second elastic member 62 can elastically abut the inner wall of the slot 41.

[0095] Specifically, in the locked state, the abutment assembly 6 can be positioned at one end of the bracket 5 near the notch of the slot 41. The abutment assembly 6 can be elastically positioned between the bracket 5 and the inner wall of the slot 41. This allows the abutment assembly 6 to be squeezed between the bracket 5 and the inner wall of the slot 41, causing slight deformation. This increases the contact area between the abutment assembly 6, the bracket 5, and the slot 41, effectively sealing the gap between the bracket 5 and the slot 41. This reduces the intrusion of dust and impurities into the gap between the bracket 5 and the slot 41, thereby minimizing damage to the electronic components within the server.

[0096] Specifically, the first elastic member 61 can be a rubber pad, a silicone pad, etc., which is determined according to actual needs. The first elastic member 61 includes but is not limited to being provided on the side of the inner wall of the bracket 5 facing the slot 41 by bonding, plugging, bolting or any other connection method.

[0097] The second elastic member 62 may be made of spring steel, stainless steel, plastic, or the like, depending on actual needs. The second elastic member 62 may be attached to the first elastic member 61 by, but is not limited to, bonding, snap-fit ​​assembly, bolting, or any other connection method. The second elastic member 62 is a hollow arc-shaped structure that can undergo slight deformation when subjected to external force.

[0098] In this embodiment, when the bracket 5 is inserted into the slot 41, the second elastic member 62 contacts the inner wall of the slot 41. As a result, the arcuate structure of the second elastic member 62 facing away from the first elastic member 61 is squeezed and slightly deformed. Simultaneously, the first elastic member 61 is also squeezed by the bracket 5 and the inner wall of the slot 41, causing slight deformation.

[0099] In this way, the abutment assembly 6 further prevents the bracket 5 from being inserted further into the slot 41, thereby dissipating the external force applied to the stop assembly 51. Furthermore, in the locked state, both the first elastic member 61 and the second elastic member 62 undergo slight deformation, absorbing the extrusion force, effectively sealing the gap between the bracket 5 and the slot 41, and reducing the intrusion of dust and impurities into the gap between the bracket 5 and the slot 41, thereby minimizing damage caused by dust and impurities and improving the protection of the electronic components within the server.

[0100] According to the locking device and server chassis provided by the present application, during the sliding of the second base in the second direction toward the first base, the mating mechanism 2 slides with the second base, the first positioning component 21 contacts the locking mechanism 1, and drives the locking mechanism 1 to retract in a direction away from the mating mechanism 2, so that the locking mechanism 1 moves past the first positioning component 21 to the position of the engaging portion 24. At this time, the first positioning component 21 is located on one side of the locking mechanism 1 and the external force on the locking mechanism 1 is canceled, so that the locking mechanism 1 extends and inserts into the engaging portion 24, thereby engaging with the engaging portion 24 to enter a locked state that prevents the second base from moving relative to the first base, without the need to install a connecting component to achieve locking. When it is necessary to separate the second base from the first base, an external force is applied to drive the second positioning component 22 to slide in the second direction toward the locking mechanism 1, so that the locking mechanism 1 retracts and disengages from the engaging portion 24, thereby allowing the mating mechanism 2 to slide with the second base in a direction away from the first base, and enter an unlocked state that allows the second base to separate from the first base. Therefore, the technical problems of complex disassembly and assembly and low operating efficiency can be solved, and the technical effects of convenient operation, rapid disassembly and assembly, and improved disassembly and assembly efficiency can be achieved.

[0101] The above is a detailed introduction to the locking device and server chassis provided by this application. This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only intended to help understand the method and core ideas of this application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of this application, several improvements and modifications can be made to this application, and these improvements and modifications also fall within the scope of protection of the claims of this application.

Claims

1. A locking device, characterized in that: include: The locking mechanism (1) comprises: A mounting assembly (11) is provided on a first base, wherein the first base is provided with a slot extending in a second direction; a locking assembly (12) slidably disposed on the mounting assembly (11) in a first direction; a telescopic assembly (13) elastically disposed between the mounting assembly (11) and the locking assembly (12) in the first direction; and A matching mechanism (2) is provided on a second base body that is inserted into or removed from the slot in the second direction, and the matching mechanism (2) comprises: a base (23) mounted on the second base body, the base (23) being provided with a guide groove (231) extending in the second direction; a first positioning assembly (21) connected to the base (23) via a coupling portion (212), and configured to resist the elastic force of the telescopic assembly (13) as the second base slides in the second direction toward the locking assembly (12), so that the locking assembly (12) slides in the first direction toward a direction away from the matching mechanism (2); the locking assembly (12) slides over the first positioning assembly (21) as the first positioning assembly (21) and, driven by the elastic force of the telescopic assembly (13), engages with the engaging portion (24) of the matching mechanism (2) to be in a locked state that prevents the second base from moving relative to the first base; and The second positioning assembly (22) comprises: a guide portion (221) slidably disposed in the guide groove (231) in the second direction; and The sliding portion (222) is arranged on the guide portion (221) and is located between the first positioning component (21) and the base (23). The sliding portion (222) is configured to slide back and forth relative to the second base and the first positioning component (21) along with the guide portion (221) in the second direction under the action of an external force, so as to drive the telescopic component (13) to contract in a direction away from the engaging portion (24) and disengage from the engaging portion (24) during the sliding process toward the first positioning component (21), thereby being in an unlocked state allowing the second base to be separated from the first base.

2. The locking device according to claim 1, characterized in that: The first positioning component (21) is arranged on a side of the base (23) close to the locking mechanism (1), and the second positioning component (22) is slidably arranged between the first positioning component (21) and the base (23), and the inwardly recessed space between the first positioning component (21) and the second positioning component (22) forms the engaging portion (24).

3. The locking device according to claim 1, characterized in that: The second positioning assembly (22) includes a driving assembly (223) configured to drive the second positioning assembly (22) to move to a first position in a direction close to the first positioning assembly (21), so that the locking mechanism (1) is disengaged from the engaging portion (24) and is in the unlocked state, or to drive the second positioning assembly (22) to move to a second position in a direction away from the first positioning assembly (21), allowing the locking mechanism (1) to be located in the engaging portion (24) and be in the locked state.

4. The locking device according to claim 3, characterized in that: The drive assembly (223) comprises: A pressing portion (2231) is provided on a side of the base (23) facing away from the first positioning component (21) and is connected to the guide portion (221) so as to drive the second positioning component (22) to move to the first position under the action of an external force; and The reset component (2232) is telescopically arranged between the pressing portion (2231) and the base (23). When the external force is removed, the reset component (2232) drives the second positioning component (22) to move to the second position.

5. The locking device according to claim 1, characterized in that: The combining portion (212) is a rod-shaped structure extending in the second direction, and the guiding portion (221) and the sliding portion (222) are sleeved outside the combining portion (212), so that the combining portion (212) guides the sliding portion (222) to slide.

6. The locking device according to claim 1, characterized in that: A first inclined surface (31) is provided on one side of the locking component (12) and the first positioning component (21) or the second positioning component (22) where they are in sliding contact with each other; and / or A second inclined surface (32) is provided on one side of the first positioning component (21) and the second positioning component (22) respectively in sliding contact with the locking component (12); The first inclined surface (31) and the second inclined surface (32) are formed to be inclined in a direction in which the matching mechanism (2) moves toward the locking assembly (12).

7. The locking device according to claim 1, characterized in that: The mounting assembly (11) comprises: A mounting seat (111) is provided on the first base; and A limiting assembly (112) is arranged on the mounting seat (111) and is provided with a limiting hole (113) extending in the first direction, and the locking assembly (12) is slidably arranged in the limiting hole (113).

8. The locking device according to claim 7, characterized in that: An accommodating space (1113) is formed inside the mounting seat (111), and a limiting ring groove (1111) is provided on the outer wall of the mounting seat (111), and the limiting ring groove (1111) is provided with a through hole (1112) communicating with the accommodating space (1113); The limiting component (112) includes: The limiting ring portion (1121) is constructed as an annular structure provided with a notch (1123) so as to be detachably embedded in the limiting ring groove (1111); and A limiting protrusion (1122) is provided on the inner wall of the limiting ring portion (1121) so as to pass through the through hole (1112) and at least partially be located in the accommodating space (1113) to form the limiting hole (113).

9. The locking device according to claim 7, characterized in that: The locking assembly (12) comprises: a locking portion (121) configured to be in sliding contact with the first positioning assembly (21) and the second positioning assembly (22); a connecting portion (122) connected to an end of the locking portion (121) away from the matching mechanism (2), the connecting portion (122) being in sliding engagement with the limiting hole (113); and a limiting portion (123) provided on the connecting portion (122) and spaced apart from the locking portion (121), such that the limiting assembly (112) is located between the locking portion (121) and the limiting portion (123), allowing the connecting portion (122) to move relative to the limiting assembly (112); Wherein, the cross-section of the locking portion (121) and the cross-section of the limiting portion (123) are larger than the diameter of the limiting hole (113), so as to limit the locking assembly (12) in the first direction.

10. A server chassis, characterized in that: include: The box body (4) is provided with a slot (41) extending in the second direction; a bracket (5) configured to mount an electronic component so as to be inserted into or removed from the slot (41) in the second direction; as well as According to any one of claims 1 to 9, the locking mechanism (1) of the locking device is telescopically arranged on the box (4) in a first direction, and the matching mechanism (2) is arranged on the bracket (5), and has a locking state that prevents the bracket (5) from moving relative to the box (4) and an unlocking state that allows the bracket (5) to separate from the box (4).

11. The server chassis according to claim 10, wherein: The bracket (5) includes a stopper assembly (51), which is larger than the diameter of the slot (41). In the locked state, the stopper assembly (51) abuts against the box (4), preventing the bracket (5) from further being inserted into the slot (41).

12. The server chassis according to claim 10, wherein: The bracket (5) includes an abutment assembly (6). In the locked state, the abutment assembly (6) can be elastically arranged between the bracket (5) and the inner wall of the slot (41). The abutment assembly (6) includes: a first elastic member (61) disposed on a side of the bracket (5) facing the inner wall of the slot (41); and The second elastic member (62) is provided on the first elastic member (61), and the second elastic member (62) is constructed as a hollow arc structure, and in the locked state, can elastically abut against the inner wall of the slot (41).

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