Fastener and electronic device

Abstract

The utility model discloses a fastener and electronic equipment, fastener includes screw rod, first elastic part, base and joint part, and elastic part is set up in screw rod, wherein, base is provided with guide hole, and screw rod is inserted in the guide hole, and is telescopic along the axial direction of guide hole. The joint part is arranged on the screw rod and is telescopic through the side wall of the screw rod, and the hole wall of the guide hole is provided with a groove matched with the joint part. Along the axial direction of the guide hole, the elastic part is arranged at intervals with the joint part and is telescopic along the axial direction of the guide hole. When the part of joint part is embedded in the groove, the elastic part is in the compression state, the end surface of the guide hole is used for abutting with the part of the to-be-locked member, the screw rod protruding from the guide hole is used for thread connection with at least part of the to-be-locked member, and when the electronic equipment vibrates, it is favorable to reduce the risk that the to-be-locked member is displaced due to the axial movement of the screw rod, and effectively improve the connection reliability of the fastener and the operation stability of the electronic equipment.

Description

Technical Field

[0001] This utility model relates to the field of server technology, and in particular to a fastener and electronic device. Background Technology

[0002] As we all know, servers contain many electronic components. Among them, the sheet metal parts used to install GPUs are mostly connected to the GPU boards by fasteners such as screws. However, during server operation, screws are easily loosened by external forces such as vibration during equipment operation, which leads to a decrease in the stability of the sheet metal parts, and in turn causes GPU displacement or even equipment failure.

[0003] Therefore, improving the connection reliability of fasteners and enhancing the operational stability of servers have become pressing problems that need to be solved by those skilled in the art. Utility Model Content

[0004] This invention provides a fastener and an electronic device to improve the connection reliability of the fastener and the operational stability of the electronic device.

[0005] In a first aspect, this utility model provides a fastener, including a screw, a first elastic element, a base, and a snap-fit ​​portion. The first elastic element is sleeved on the screw, wherein the base is provided with a guide hole, the screw is inserted into the guide hole, and extends and retracts along the axial direction of the guide hole. The snap-fit ​​portion is provided on the screw and extends and retracts through the side wall of the screw; the wall of the guide hole is provided with a groove that matches the snap-fit ​​portion. Along the axial direction of the guide hole, the first elastic element and the snap-fit ​​portion are spaced apart and extend and retract along the axial direction of the guide hole. When a portion of the snap-fit ​​portion is embedded in the groove, the first elastic element is in a compressed state, the end face of the guide hole is used to abut against a portion of the part to be locked, and the screw extending out of the guide hole is used to be threadedly connected to at least a portion of the part to be locked.

[0006] Understandably, the component to be locked is secured by at least two locking components, such as a first locking component and a second locking component, and a fastener is used to achieve a fixed connection between the first locking component and the second locking component. Using the fastener provided by this invention, the end face of the guide hole of the fastener abuts against the plate surface of the first locking component, while a portion of the snap-fit ​​part is embedded in a groove, and the portion of the screw extending out of the guide hole is threadedly connected to the second fastener via the first locking component. Thus, when the electronic device vibrates, the snap-fit ​​part can effectively reduce the risk of relative displacement between the first and second locking components caused by axial movement of the screw, and the risk of equipment failure, effectively improving the connection reliability of the fastener and the operational stability of the electronic device.

[0007] In one possible implementation of this invention, the snap-fit ​​portion includes a second elastic member and a limiting structure. The side wall of the screw has a mounting groove. The second elastic member is inserted into the mounting groove, with one end abutting against the bottom of the groove and the other end connected to the limiting structure. When the limiting structure is partially embedded in the groove, the second elastic member is in a compressed state. Thus, when the electronic device vibrates, the elastic force of the second elastic member effectively keeps the limiting structure within the groove, achieving a reliable fastener connection while simplifying the fastener structure.

[0008] In one possible implementation of this invention, the snap-fit ​​portion includes a second elastic member and two limiting structures. A through hole is provided on the side wall of the screw, extending radially through the side wall. The two ends of the second elastic member are connected to the two limiting structures in a one-to-one correspondence. When a portion of the limiting structure is embedded in the groove, the second elastic member is in a compressed state. This is used to further improve the connection reliability of the fastener and enhance the operational stability of the electronic device.

[0009] In one possible implementation of this invention, the snap-fit ​​portion is located within the guide hole, and the second elastic element is in a compressed state, with the limiting structure contacting the wall of the guide hole. Thus, when the electronic device vibrates, on the one hand, the elastic force of the second elastic element effectively keeps the limiting structure within the groove; on the other hand, along the axial direction of the guide hole, the sidewall of the groove also limits the limiting structure, thereby effectively improving the connection reliability of the fastener and the operational stability of the electronic device when the screw is threadedly connected to the locking component.

[0010] In one possible implementation of this invention, a first protrusion is provided on the side wall of the screw, and a second protrusion is provided on the wall of the guide hole, the second protrusion being located between the end face of the groove and the guide hole. One end of the first elastic member abuts against the first protrusion, and the other end abuts against the second protrusion. Thus, during the process of changing the engagement state from a separated state to a engaged state between the locking part and the groove, the first elastic member is continuously compressed, and when the locking part and the groove are in the engaged state, the first elastic member is in a compressed state. Therefore, when the electronic device vibrates, the first elastic member can buffer the screw along the axial direction and effectively offset part of the external force along the axial direction, keeping the axial force stable, thereby effectively improving the connection reliability of the fastener and the operational stability of the electronic device.

[0011] In one possible implementation of this utility model, the direction from the first protrusion to the second protrusion is the direction of movement of the screw extending out of the guide hole, so that at least a portion of the first elastic element is located in the guide hole, which is beneficial to improving the movement stability of the screw.

[0012] In one possible implementation of this invention, the outer wall of the base is provided with an extrusion groove. During the riveting process between the third locking member and the outer wall of the base, a portion of the third locking member fills the extrusion groove to improve the connection stability between the third locking member and the fastener. Furthermore, a gap exists between the extrusion groove and the end face of the guide hole along the axial direction of the guide hole. This gap can be used to accommodate some electronic components of the electronic device to improve its adaptability.

[0013] In one possible implementation of this utility model, the outer wall of the base includes a third protrusion, and one side of the third protrusion is smoothly connected to one side of the extrusion groove, so that the extruded material of the third locking member during the riveting process can be directly embedded into the extrusion groove of the base, thereby achieving a fixed connection between the third locking member and the base while reducing the difficulty of the process.

[0014] Secondly, this utility model provides an electronic device, which includes a locking component and the fastener described in the first aspect. The locking component includes a first locking component and a second locking component, which are stacked along the axial direction of a guide hole. When the snap-fit ​​portion is partially embedded in the groove, the end face of the guide hole abuts against the first locking component; the portion of the screw extending out of the guide hole is threadedly connected to the second locking component via the first locking component. Using the fastener provided by this utility model, by having the end face of the guide hole of the fastener abut against the plate surface of the first locking component, while the snap-fit ​​portion is partially embedded in the groove, and the portion of the screw extending out of the guide hole is threadedly connected to the second fastener via the first locking component, the snap-fit ​​portion can effectively reduce the risk of relative displacement between the first and second locking components caused by axial movement of the screw when the electronic device vibrates, thus improving the connection reliability of the fastener and the operational stability of the electronic device.

[0015] In one possible implementation of this utility model, the component to be locked further includes a support structure and electronic components. The support structure is riveted to the outer wall of the base; the electronic components are mounted on the plate surface of the first locking component. A gap exists between the support structure and the end face of the guide hole along the axial direction of the guide hole. When the snap-fit ​​portion is partially embedded in the groove, the electronic components are located between the support structure and the plate surface of the first locking component. Because the end face of the guide hole of the fastener abuts against the first locking component, and the screw of the fastener is threadedly connected to the second locking component via the first fastener, while the base of the fastener is riveted to the support structure, and the electronic components are located between the support structure and the plate surface of the first locking component, it can effectively meet the connection reliability and space requirements of the component to be locked, as well as improve the adaptability of the electronic equipment to complex working conditions and the operational stability of the electronic equipment. Attached Figure Description

[0016] Figure 1A schematic diagram of the structure of a server provided by this utility model;

[0017] Figure 2 A schematic diagram of a fastener provided by this utility model;

[0018] Figure 3 for Figure 2 A cross-sectional view of the provided fastener;

[0019] Figure 4 for Figure 2 A schematic diagram of a fastener in a state where the snap-fit ​​portion is separated from the groove;

[0020] Figure 5 for Figure 2 A schematic diagram of a fastener in which the snap-fit ​​part is engaged with the groove;

[0021] Figure 6 for Figure 1 A diagram illustrating another state of the fasteners in the provided server;

[0022] Figure 7 for Figure 2 A schematic diagram illustrating the connection state between the provided fastener and the third locking element.

[0023] Reference numerals: 01-Component to be locked; 011-First locking component; 012-Second locking component; 013-Electronic component; 014-Third locking component; 1-Screw; 11-Through hole; 12-First protrusion; 2-First elastic component; 3-Base; 31-Guide hole; 311-Groove; 312-First end face; 313-Second protrusion; 32-Extrusion groove; 33-Third protrusion; 4-Snap-fit ​​part; 41-Second elastic component; 42-Limiting structure. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted. The terms expressing position and direction described in the embodiments of this utility model are illustrative based on the accompanying drawings, but changes can be made as needed, and all such changes are included within the protection scope of this utility model. The accompanying drawings of the embodiments of this utility model are only for illustrating relative positional relationships and do not represent actual proportions.

[0025] It should be noted that specific details are set forth in the following description to facilitate understanding of this utility model. However, this utility model can be implemented in many ways other than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] As we all know, servers contain many electronic components. Among them, the sheet metal parts used to install GPUs are mostly connected to the GPU boards by fasteners such as screws. However, during server operation, screws are easily loosened by external forces such as vibration during equipment operation, which leads to a decrease in the stability of the sheet metal parts, and in turn causes GPU displacement or even equipment failure.

[0027] In addition, after connecting the sheet metal parts used to mount the GPU and the GPU board with traditional screws, no other electronic components can be placed between the sheet metal parts and the GPU board, which results in the electronic equipment having low adaptability to complex working conditions.

[0028] In view of this, the fastener provided by this utility model includes a snap-fit ​​structure and an elastic structure, wherein the elastic structure is arranged axially, to reduce the risk of loosening after the fastener is connected to the GPU board, improve the connection reliability of the fastener, and enhance the operational stability of the server. To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] It should be noted that the electronic device provided by this utility model can be a server or other electronic device. At the same time, the fasteners provided by this utility model are not only used to achieve a reliable connection between the sheet metal parts used to install the GPU and the GPU board, but can also be used for a reliable connection of other parts to be locked. This utility model does not make any specific limitations.

[0030] For ease of explanation, this utility model uses a server as an example to illustrate the specific structure and application of the fastener.

[0031] refer to Figure 1 , Figure 1 This is a structural diagram illustrating a server. The server includes a locking component 01 and fasteners. It is understood that the locking component 01 may include a first locking component 011 and a second locking component 012, and the first locking component 011 and the second locking component 012 are stacked. For example, the first locking component 011 may be a GPU board, and the second locking component 012 may be a base plate. The base plate has protruding connecting posts on its surface, and the connecting posts have internal threaded holes that match the fasteners. The surface of the GPU board abuts against the end face of the connecting post, and the GPU board has through holes corresponding to the internal threaded holes.

[0032] When setting up fasteners, please refer to the following: Figure 2 and Figure 3 , Figure 2 A structural diagram used to illustrate fasteners; Figure 3 For display Figure 2 A cross-sectional view of the provided fastener. The fastener includes a screw 1, a first elastic element 2, a base 3, and a locking portion 4, wherein the first elastic element 2 is sleeved on the screw 1. The base 3 is provided with a guide hole 31, into which the screw 1 is inserted and extends and retracts axially along the guide hole 31. It is understood that the base 3 may be exemplary of a cylindrical structure or a structure with an outer contour of a cube, and a through hole penetrating two opposite sidewalls of the cube.

[0033] In the specific configuration of the locking part 4, the locking part 4 is located on the screw 1, and the locking part 4 can extend and retract via the side wall of the screw 1. Simultaneously, the guide hole 31 of the base 3 has a groove 311 that matches the locking part 4. This is understandable, as... Figure 4 and Figure 5 As shown, there are engaged and disengaged states between the engaging part 4 and the groove 311. Specifically, when a portion of the engaging part 4 is embedded in the groove 311, i.e., when the engaging part 4 and the groove 311 are engaged, the first elastic member 2 is compressed, and the end face of the guide hole 31 (hereinafter referred to as the first end face 312) is used to abut against a portion of the member 01 to be locked. A portion of the screw 1 extends out of the guide hole 31 through the first end face 312, and the portion of the screw 1 extending out of the guide hole 31 is used to be threadedly connected to at least a portion of the member 01 to be locked, so as to meet the connection requirements between the fastener and the first locking member 011 and the second locking member 012.

[0034] Specifically, when the first end face 312 of the fastener abuts against the surface of the board, and the portion of the snap-fit ​​part 4 is partially embedded in the groove 311, the portion of the screw 1 extending out of the guide hole 31 is threadedly connected to the internal threaded hole of the connecting post on the base plate through the through hole 11 on the board, thereby achieving a stable connection between the board and the base plate. In addition, the base 3 can be fixedly connected to the server chassis by screws.

[0035] The fastener provided by this invention abuts the end face of the guide hole 31 of the fastener against the surface of the board, while at least a portion of the locking part 4 is embedded in the groove 311, and the portion of the screw 1 extending out of the guide hole 31 is threadedly connected to the base plate via the board. Thus, when the server vibrates, the locking part 4 can effectively reduce the risk of relative displacement between the base plate and the GPU board caused by axial movement of the screw 1, thereby reducing the risk of equipment failure. This effectively improves the connection reliability of the fastener and enhances the operational stability of the electronic equipment.

[0036] In an optional implementation, when specifically configuring the snap-fit ​​portion 4, such as Figure 4As shown, the snap-fit ​​portion 4 may include a second elastic member 41 and a limiting structure 42. The elastic member may be, for example, a spring, and the limiting structure 42 may be, for example, a sphere or other structure with an arcuate surface. The limiting structure 42 is disposed at the end of the second elastic member 41 and is connected to the end of the second elastic member 41.

[0037] Optionally, the side wall of the screw 1 is provided with a mounting groove, and the second elastic element 41 is inserted into the mounting groove. One end of the second elastic element 41 abuts against the bottom of the mounting groove, and the other end is connected to the limiting structure 42. Then, along the axial direction of the mounting groove, when the limiting structure 42 is opposite to the groove 311 on the inner wall of the guide hole 31, the limiting structure 42 can extend out of the mounting groove under the action of elastic force and embed into the groove 311, and the second elastic element 41 is in a compressed state. In this way, when the server vibrates, the elastic force of the second elastic element 41 can effectively drive the limiting structure 42 to always be located in the groove 311.

[0038] It is worth mentioning that, such as Figure 4 and Figure 5 As shown, the engaging portion 4 is always positioned within the guide hole 31 to reduce the risk of the engaging portion 4 disengaging from the screw 1. Furthermore, by keeping the second elastic member 41 in a compressed state, the limiting structure 42 contacts the wall of the guide hole 31 and applies pressure towards the wall. It is understood that when the engaging portion 4 is separated from the groove 311 on the inner wall of the guide hole 31, the second elastic member 41 is in a first compressed state; while when the engaging portion 4 is engaged with the groove 311 on the inner wall of the guide hole 31, the second elastic member 41 is in a second compressed state, and the compression amount in the first compressed state is greater than the compression amount in the second compressed state. When the locking part 4 and the groove 311 change from a separated state to a locked state, the limiting structure 42 can enter the groove 311 under the action of elastic force. In this way, when the server vibrates, on the one hand, the elastic force of the second elastic element 41 can effectively drive the limiting structure 42 to always be located in the groove 311. On the other hand, along the axial direction of the guide hole 31, the side wall of the groove 311 also forms a limit on the limiting structure 42, so as to effectively improve the connection reliability of the fastener and improve the operational stability of the server when the screw 1 is threadedly connected to the locking part 01.

[0039] Continue to refer to Figure 4 and Figure 5In an optional embodiment, the mounting groove can be configured as a through hole 11, which extends through the side wall of the screw 1 along its radial direction. The locking portion 4 includes two limiting structures 42, with a second elastic member 41 passing through the through hole 11, and both ends of the second elastic member 41 correspondingly connected to the two limiting structures 42. When the locking portion 4 is engaged with the groove 311 of the guide hole 31, a portion of each limiting structure 42 is embedded in the corresponding groove 311, further enhancing the connection reliability of the fastener and improving the operational stability of the server. Understandably, the limiting force of the limiting structure 42 on the screw 1 can be adjusted according to the compression force of the spring.

[0040] Continue to refer to Figure 4 and Figure 5 In an optional embodiment, the side wall of the screw 1 is provided with a first protrusion 12. Specifically, the first protrusion 12 is spaced apart from one end of the large end of the screw, and the through hole 11 on the screw 1 passes through the first protrusion 12 radially. The first protrusion 12 can be a circle around the screw 1, or multiple protrusions spaced apart circumferentially. When multiple protrusions are spaced apart circumferentially, the through hole 11 only passes through two oppositely arranged protrusions radially, so that the second elastic member 41 can pass through the through hole.

[0041] Meanwhile, a second protrusion 313 is provided along the wall of the guide hole 31 of the base 3, and the second protrusion 313 is located between the end face of the groove 311 and the guide hole 31. The first elastic member 2, which is sleeved with the screw 1, is exemplarily a spring, with one end of the first elastic member 2 abutting against the first protrusion 12 and the other end abutting against the second protrusion 313. Thus, during the process of changing the engagement state of the locking part 4 and the groove 311 from a separated state to a locked state, the first elastic member 2 is continuously compressed, and when the locking part 4 and the groove 311 are in a locked state, the first elastic member 2 is in a compressed state. Therefore, when the server vibrates, the first elastic member 2 can buffer the screw 1 along the axial direction and effectively offset part of the external force along the axial direction, keeping the axial force stable, thereby effectively improving the connection reliability of the fastener and the operational stability of the server.

[0042] It is worth mentioning that the direction from the first protrusion 12 to the second protrusion 313 is the direction of movement of the screw 1 when it extends out of the guide hole 31, that is, the negative direction of the Z-axis. Understandably, the second protrusion 313 is located between the first protrusion 12 and the first end face 312 of the guide hole 31, so that at least a portion of the first elastic element 2 is always located within the guide hole 31, which helps to improve the movement stability of the screw 1.

[0043] In addition, since the gap between the first protrusion 12 and the wall of the guide hole 31 is much smaller than the gap between the thread of the screw 1 and the wall of the guide hole 31, the first protrusion 12 also plays an auxiliary positioning role in the guide hole 31 during the extension and retraction of the screw 1, so as to improve the axial movement accuracy of the screw 1.

[0044] In one specific embodiment, reference is also made to Figure 5 and Figure 6 , Figure 6 For display Figure 1 The diagram illustrates another state of the fasteners in the provided server. In this state, the fasteners are securely connected to the first locking member 011 and the second locking member 012. The locking member 01 may also include an electronic component 013 and a third locking member 014. The electronic component 013 is disposed on the surface of the first locking member 011 (e.g., the GPU board mentioned above) facing away from the second locking member 012 (e.g., the base plate mentioned above). The third locking member 014 is exemplarily a support structure. It should be noted that this utility model does not limit the material and structure of the support structure. For example, the support structure may be a sheet metal part with a bending structure or an injection molded part for mounting electronic devices, such as a GPU. Specifically, when the support structure is a sheet metal part, it can be riveted to the outer wall of the base 3, and there is a gap between the support structure and the first end face 312 of the guide hole 31, with a gap height of h1. Meanwhile, the electronic component 013 is located between the support structure and the surface of the first locking member 011. Since the first end face 312 of the fastener abuts against the first locking member 011, and the screw 1 of the fastener is threadedly connected to the second locking member 012 via the first fastener, while the base 3 of the fastener is riveted to the third fastener, and the electronic component 013 is located between the plate surface of the third locking member 014 and the first locking member 011, it can effectively meet the connection reliability and space requirements of the locking member 01, as well as improve the server's adaptability to complex working conditions and the server's operational stability.

[0045] Optional, please refer to them as well. Figure 2 , Figure 4 and Figure 7 , Figure 7 This is a structural schematic diagram illustrating the connection state between the fastener and the third locking member 014. An extrusion groove 32 can be provided on the outer wall of the base 3. The extrusion groove 32 can be an annular groove or a series of spaced grooves. For example, when the base 3 is cylindrical, the extrusion groove 32 can be an annular groove along the circumference of the base 3, with a portion of the support structure embedded in the extrusion groove 32. Specifically, the support structure can be a sheet metal part. When connecting the sheet metal part to the base 3, a riveting process can be used to fill a portion of the sheet metal part into the extrusion groove 32, thereby achieving a stable connection between the support structure and the base 3 while simplifying the fastener structure.

[0046] Furthermore, along the axial direction of the guide hole 31, the extrusion groove 32 is spaced apart from the first end face 312 of the guide hole 31. The spacing between them can be set according to the spacing requirements between the support structure and the first end face 312, for example... Figure 7 The height h1 is adjusted according to the height h2 requirement of electronic component 013. Specifically, h1 ≥ h2, in order to meet the installation requirements of electronic component 013 and effectively improve the server's adaptability to complex working conditions.

[0047] It is worth mentioning that, such as Figure 5 and Figure 7 As shown, the outer wall of the base 3 may also include a third protrusion 33, and the side wall of one side of the third protrusion 33 (hereinafter referred to as the first side wall) is smoothly connected to the side wall of one side of the extrusion groove 32. In this way, during the process of riveting the sheet metal part to the base 3, the sheet metal part is provided with a through hole 11, and the base 3 is inserted into the through hole 11. At the same time, the plate surface of the sheet metal part abuts against the first side wall of the third protrusion 33, so that the extruded material of the sheet metal part during the riveting process can be directly embedded into the extrusion groove 32 of the base 3, thereby achieving a fixed connection between the sheet metal part and the base 3 while reducing the difficulty of the process.

[0048] In addition, when selecting sheet metal parts, the thickness of the sheet metal parts can be greater than the width of the extrusion groove 32, so that more extruded material from the sheet metal parts can be filled into the extrusion groove 32 during the riveting process, thereby further improving the connection strength between the sheet metal parts and the base 3.

[0049] In summary, the fastener provided by this utility model abuts the end face of the guide hole 31 of the fastener against the surface of the board, while the locking part 4 is partially embedded in the groove 311, and the part of the screw 1 extending out of the guide hole 31 is threadedly connected to the base plate. Thus, when the server vibrates, the locking part 4 can effectively reduce the risk of relative displacement between the base plate and the GPU board caused by the axial movement of the screw 1, thereby reducing the risk of equipment failure. This effectively improves the connection reliability of the fastener and enhances the operational stability of the electronic equipment.

[0050] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A fastener, characterized in that, It includes a screw, a first elastic element, a base, and a snap-fit ​​part, wherein the first elastic element is sleeved on the screw, and: The base is provided with a guide hole, and the screw is inserted into the guide hole and extends and retracts along the axial direction of the guide hole; The snap-fit ​​part is disposed on the screw and extends and retracts through the side wall of the screw; the guide hole has a groove on its wall that matches the snap-fit ​​part; Along the axial direction of the guide hole, the first elastic element is spaced apart from the snap-fit ​​portion and extends and retracts along the axial direction of the guide hole; When the snap-fit ​​portion is partially embedded in the groove, the first elastic element is in a compressed state, the end face of the guide hole is used to abut against a portion of the part to be locked, and the screw extending out of the guide hole is used to be threadedly connected to at least a portion of the part to be locked.

2. The fastener according to claim 1, characterized in that, The snap-fit ​​part includes a second elastic element and a limiting structure. The side wall of the screw is provided with a mounting groove. The second elastic element is inserted into the mounting groove, with one end abutting against the bottom of the mounting groove and the other end connected to the limiting structure. When a portion of the limiting structure is embedded in the groove, the second elastic element is in a compressed state.

3. The fastener according to claim 1, characterized in that, The snap-fit ​​part includes a second elastic element and two limiting structures. The side wall of the screw is provided with a through hole, which penetrates the side wall of the screw along the radial direction of the screw. The two ends of the second elastic element are connected one-to-one with the two limiting structures; When a portion of the limiting structure is embedded in the groove, the second elastic element is in a compressed state.

4. The fastener according to claim 3, characterized in that, The snap-fit ​​portion is located inside the guide hole, and the second elastic element is in a compressed state, with the limiting structure in contact with the hole wall of the guide hole.

5. The fastener according to claim 1, characterized in that, The screw has a first protrusion on its side wall and a second protrusion on the wall of the guide hole. The second protrusion is located between the groove and the end face of the guide hole. One end of the first elastic member abuts against the first protrusion, and the other end abuts against the second protrusion.

6. The fastener according to claim 5, characterized in that, The direction from the first protrusion to the second protrusion is the direction in which the screw extends out of the guide hole.

7. The fastener according to claim 1, characterized in that, The outer wall of the base is provided with an extrusion groove, and there is a gap between the extrusion groove and the end face of the guide hole along the axial direction of the guide hole.

8. The fastener according to claim 7, characterized in that, The outer wall of the base includes a third protrusion, and one side of the third protrusion is smoothly connected to one side of the extrusion groove.

9. An electronic device, characterized in that, Includes the locking element and the fastener as described in any one of claims 1-8, wherein: The locking component includes a first locking component and a second locking component, which are stacked along the axial direction of the guide hole. When the snap-fit ​​portion is partially embedded in the groove, the end face of the guide hole abuts against the first locking member; the portion of the screw extending out of the guide hole is threadedly connected to the second locking member via the first locking member.

10. The electronic device according to claim 9, characterized in that, The locking component further includes a support structure and electronic components. The support structure is riveted to the outer wall of the base. The electronic components are mounted on the plate surface of the first locking component. Along the axial direction of the guide hole, there is a gap between the support structure and the end face of the guide hole; When the snap-fit ​​portion is partially embedded in the groove, the electronic component is located between the support structure and the plate surface of the first locking member.

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