A self-locking castle nut mechanism

Abstract

The utility model discloses a self -locking card formula nut mechanism, including nut body, joint piece and stop device, joint piece is by side wall and located the baffle and fender of both ends constitute, and the cavity is formed among three, and nut body is along the axial sliding of screw hole in the accommodation cavity, and baffle sets up the perforation corresponding with screw hole, and the accommodation cavity has the starting end and the terminal end, and nut body is in the starting end with baffle abuts, in the terminal end with fender abuts, limit device is located in the side wall of accommodation cavity. In this mechanism, the joint piece can act as a wrench, limiting the nut body rotation, without the traditional tool screw, overcome the obstruction of limited space to installation, improve the installation efficiency in the limited space, avoid affecting production progress and equipment assembly. When the bolt is screwed into the nut body, the nut body moves from the starting end to the terminal end under stress until it contacts with the limiting device. Because the joint piece cannot be deformed due to environmental influence, it can lock and fix the nut body, effectively preventing it from loosening in vibration, impact and other environments.

Description

Technical Field

[0001] This utility model relates to the field of nut technology, and in particular to a self-locking snap-fit ​​nut mechanism. Background Technology

[0002] In many fields such as machinery manufacturing, automotive industry, aerospace, and electronic equipment, the fastening connection between components is a crucial link in ensuring the normal operation and structural stability of equipment or products. The mating of nuts with bolts and screws, as one of the most common and effective fastening methods, is widely used in various assembly scenarios. Traditional nut mechanisms are usually simple hexagonal nuts or other conventional forms, requiring tools such as wrenches to tighten during installation to achieve a secure connection with bolts or screws. However, this traditional nut mechanism has many limitations in practical applications.

[0003] On the one hand, in some space-constrained installation environments, such as narrow mechanical interiors or complex electronic equipment internal structures, operators find it difficult to use tools such as wrenches to properly tighten traditional nuts, leading to numerous difficulties in the installation process and even making it impossible to complete the installation task, which seriously affects production efficiency and equipment assembly progress.

[0004] On the other hand, traditional nut mechanisms are prone to loosening during long-term use due to vibrations and impacts generated during equipment operation. Once the nut loosens, the connection between components will fail, thereby affecting the performance and safety of the entire equipment or product. Utility Model Content

[0005] The purpose of this utility model is to disclose a nut mechanism that is easy to install in space-constrained environments, has good anti-loosening performance, and ensures stable and reliable connection between components.

[0006] To achieve the above objectives, this utility model discloses a self-locking snap-fit ​​nut mechanism, comprising: a nut body having a threaded hole; a snap-fit ​​component including a side wall and baffles and stops located at both ends of the side wall, a receiving cavity being provided between the side wall, baffles and stops, the nut body slidingly within the receiving cavity along the axial direction of the threaded hole, the baffles having through holes corresponding to the threaded hole; the side wall restricting the rotation of the nut body itself, the receiving cavity having an opening at its end point, the stops being located at the edge of the opening; the receiving cavity having a starting end and an ending end for the sliding of the nut body, the nut body abutting against the baffle when located at the starting end, and the nut body abutting against the stops when located at the ending end; and a limiting device located on the side wall of the receiving cavity, the limiting device abutting against the outer side wall of the nut body when the nut body slides to the ending end.

[0007] By adopting the above solution, the locking element can act as a wrench, restricting the rotation of the nut body itself. Since there is no need to use traditional tools for tightening, it effectively overcomes the obstacles posed by space constraints to the installation of traditional nuts, significantly improving installation efficiency in confined spaces and preventing production progress and equipment assembly from being affected by installation difficulties. When the bolt is screwed into the nut body of this self-locking locking nut mechanism, the nut body moves from the starting end to the ending end of the receiving cavity until it contacts the inner limiting device. Because the locking element cannot deform due to the surrounding environment, it locks and fixes the nut body, effectively preventing the nut body from loosening under vibration, impact, or other environments.

[0008] Furthermore, the limiting device is integrally formed with the snap-fit ​​component, and the limiting device protrudes to one side of the nut body.

[0009] By adopting the above solution, the one-piece molding design reduces the number of parts. During installation, there is no need for additional assemblies of limiting devices and snap-fit ​​components, avoiding problems that may arise from improper component assembly. This makes the entire installation process simpler and more efficient, significantly shortening installation time and improving production efficiency. It can more directly and effectively abut against the outer wall of the nut body, providing more reliable restraint for the nut when subjected to external forces, preventing excessive movement of the nut within the receiving cavity, thereby greatly improving the anti-loosening performance of the nut mechanism.

[0010] Furthermore, the stop includes a first side stop and a second side stop; the sidewall includes: a first sidewall, one end of which is integrally bent and connected to one end of the baffle, and the other end of which is integrally bent and connected to the first side stop; and a second sidewall, which is integrally bent and connected to one end of the baffle, and the other end of which is integrally bent and connected to the second side stop.

[0011] By adopting the above solution, the system can better withstand external forces, such as the pressure when bolts are screwed in and the vibration and impact forces generated during equipment operation. This significantly improves the overall rigidity of the self-locking nut mechanism and reduces the risk of structural damage. When the nut slides to the end of the receiving cavity, the stop effectively prevents the nut from sliding out, ensuring that the nut remains in the correct position within the receiving cavity.

[0012] Furthermore, a first locking element is provided on the outer side of the first sidewall, and a second locking element is provided on the outer side of the second sidewall.

[0013] By adopting the above scheme, the first and second clips can fix and limit the clip itself, thus achieving stable installation of the clip.

[0014] Furthermore, the first card is integrally bent into shape with the first sidewall, and the second card is integrally bent into shape with the second sidewall.

[0015] By adopting the above solution, the manufacturing and assembly processes of parts are reduced, production costs are lowered, and production efficiency and product quality consistency are improved.

[0016] Furthermore, side baffles are provided on both sides of the baffle, and the side baffles and the baffle are integrally bent together.

[0017] By adopting the above scheme, the side baffle increases the range of constraint of the baffle on the nut, and together with the baffle, the first side wall and the second side wall, the limiting effect on the five sides of the nut is achieved.

[0018] Furthermore, a first limiting piece is provided at the other end of the first sidewall, and a second limiting piece is provided at the other end of the second sidewall, wherein the first limiting piece and the second limiting piece are coplanar.

[0019] By adopting the above scheme, the coplanar design of the first and second limiting plates, along with their cooperation with the locking components, forms a closed limiting space, effectively preventing displacement of the locking components in all directions. The cooperation of the first and second limiting plates with the first and second locking components provides clear reference and guidance for installation. Installers can quickly and accurately install the locking components to the predetermined positions based on these limiting structures, improving installation efficiency and accuracy.

[0020] Furthermore, the first limiting piece is integrally bent to the other end of the first sidewall, and the second limiting piece is integrally bent to the other end of the second sidewall.

[0021] By adopting the above solution, the manufacturing and assembly processes of parts are reduced, and the costs of mold development, raw material procurement, production and processing are lowered.

[0022] Furthermore, the first limiting piece, the second limiting piece, the first side stop, and the second side stop are located on the same plane.

[0023] By adopting the above solution, the structure on the same plane can better resist vibration and impact, and reduce the shaking and displacement of the snap-fit ​​parts.

[0024] Furthermore, both the first and second side stops are bent perpendicularly toward the nut body, and both the first and second side stops are bent perpendicularly away from the nut body.

[0025] By adopting the above solution, the two vertical bends can be completed in one forming process such as stamping and bending, reducing production steps and processing time. Compared with complex irregular structures, this relatively regular bending design is easier to automate, improving production efficiency and product quality consistency.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0027] This utility model

[0028] 1. The snap-fit ​​component can act as a wrench, restricting the rotation of the nut body itself, eliminating the need for traditional tools to tighten it, effectively overcoming space limitations, significantly improving installation efficiency in confined spaces, and avoiding production progress and equipment assembly being affected by installation difficulties;

[0029] 2. Easy to operate. Simply place the nut body into the starting end of the receiving cavity, then screw in the bolt to make it slide to the ending end, where it contacts the limiting device to complete the locking. This greatly simplifies the installation process, reduces the installation difficulty, and improves the installation efficiency.

[0030] 3. When the bolt is screwed into the nut body of the self-locking snap-fit ​​nut mechanism, the nut body moves from the beginning to the end of the receiving cavity under force until it contacts the inner limiting device. Since the snap-fit ​​component cannot deform due to the surrounding environment, it locks and fixes the nut body, effectively preventing loosening under vibration, impact, or other conditions. It continuously provides anti-loosening protection, avoiding connection failures caused by nut loosening, reducing equipment maintenance frequency and costs, ensuring stable and reliable connections between components, and improving the performance and safety of the equipment or product. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the nut body located at the starting end in an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the nut body located at the end point in an embodiment of the present invention;

[0034] Figure 3 This is a disassembly diagram of an embodiment of the present utility model;

[0035] Figure 4 This is a schematic diagram of the structure of the present invention during installation using the mounting holes.

[0036] Explanation of key figure labels:

[0037] 1. Nut body; 11. Screw hole; 2. Limiting device; 3. Snap-fit ​​component; 31. Side wall; 311. First side wall; 312. Second side wall; 313. First snap-fit ​​component; 314. Second snap-fit ​​component; 315. First limiting piece; 316. Second limiting piece; 32. Baffle; 321. Through hole; 322. Side baffle; 33. Stop; 331. First side stop; 332. Second side stop; 34. Receiving cavity; 341. Starting end; 342. Ending end; 4. Mounting hole. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0040] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0041] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0042] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0043] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0044] Please refer to Embodiment 1 of this utility model. Figures 1 to 3As shown, a self-locking snap-fit ​​nut mechanism is provided, including a nut body 1, a snap-fit ​​component 3, and a limiting device 2. The nut body 1 is, but is not limited to, a quadrilateral, a pentagon, or a hexagon, and has a screw hole 11 that matches the bolt inside. The snap-fit ​​component 3 includes a side wall 31 and baffles 32 and stops 33 located at both ends of the side wall 31. A receiving cavity 34 is provided between the side wall 31, the baffles 32, and the stops 33. The nut body 1 slides axially in the receiving cavity 34 along the screw hole 11. The receiving cavity 34 has a starting end 341 and an ending end 342 for the sliding of the nut body 1. The snap-fit ​​component 3 is integrally formed by stamping and bending an elastic metal material, including but not limited to stainless steel or spring steel. The baffle 32 is a horizontal plate structure with a through hole 321 in the middle to match the bolt. The sidewall 31 includes a first sidewall 311 and a second sidewall 312 symmetrically arranged, which are respectively bent vertically from the two sides of the baffle 32. The sidewall 31 is used to restrict the rotation of the nut body 1. The end point 342 of the receiving cavity 34 is provided with an opening, and the stop 33 is provided at the edge of the opening. The stop 33 is located at the other end of the first sidewall 311 and the second sidewall 312. In some embodiments, the stop 33 includes a first side stop 331 and a second side stop 332, which are respectively formed by bending the ends of the first sidewall 311 and the second sidewall 312 vertically inward, constituting a limiting structure for the end point 342 of the receiving cavity 34. When the nut body 1 is located at the starting end 341, it abuts against the baffle 32. When the nut body 1 is located at the ending end 342, it abuts against the stop 33. The limiting device 2 is disposed on the side wall 31 of the receiving cavity 34. When the nut body 1 slides to the ending end 342, the limiting device 2 abuts against the outer side wall 31 of the nut body 1. The outer diameter of the nut body 1 is slightly smaller than the width of the receiving cavity 34 of the snap-fit ​​3. Therefore, the snap-fit ​​3 can act as a wrench, restricting the rotation of the nut body 1 itself. Since there is no need to use traditional tools for tightening, it effectively overcomes the obstacle of space constraints to the installation of traditional nuts, significantly improving the installation efficiency in confined spaces, and preventing production progress and equipment assembly from being affected by installation difficulties. When the bolt is screwed into the nut body 1 of the self-locking snap-fit ​​nut mechanism, the nut body 1 is subjected to force and moves from the starting end 341 to the ending end 342 of the receiving cavity 34 until it contacts the inner limiting device 2. Since the snap-fit ​​part 3 cannot deform due to the influence of the surrounding environment, it locks and fixes the nut body 1, effectively preventing the nut body 1 from loosening under vibration, impact and other environments.

[0045] During installation, align the first locking piece 313 and the second locking piece 314 of the locking piece 3 with the mounting hole 4. The mounting hole 4 can be a square hole or an oblong hole on a sheet metal part. Press the locking piece 3 downwards to allow it to smoothly enter the mounting hole 4. Then, pass the bolt through the through hole 321 above the mounting plane and screw it into the screw hole 11 of the nut body 1. As the bolt is screwed in, the nut body 1 is subjected to the axial tension of the bolt and slides along the receiving cavity 34 from the starting end 341 to the ending end 342, i.e., near the stop 33. When the nut body 1 slides to the ending end 342, its top contacts the stop 33, and at the same time, the outer wall 31 abuts against the inner limiting device 2. At this time, the nut body 1 applies outward pressure to the side wall 31 of the locking piece 3. However, since the locking piece 3 has been restricted in deformation by the mounting hole 4, the outer limiting device 2 forms a rigid engagement with the edge of the mounting hole 4, and the mechanism enters a locked state, making it impossible to disengage from the mounting hole 4.

[0046] In some embodiments, the limiting device 2 is integrally formed with the snap-fit ​​member 3, and the limiting device 2 protrudes towards one side of the nut body 1. In this embodiment 1, the limiting device 2 is a protruding structure formed inside the first sidewall 311 and the second sidewall 312 of the receiving cavity 34. When the nut body 1 slides to the end point 342, the protrusion abuts against the outer sidewall 31 of the nut body 1, preventing it from moving further. The protruding structure can be formed by stamping.

[0047] In various embodiments, the stop 33 includes a first side stop 331 and a second side stop 332. Both the first side stop 331 and the second side stop 332 are two plate-like structures used to prevent the nut body 1 from disengaging from the end point 342. In this embodiment 1, one end of the first side wall 311 is integrally bent and connected to one end of the baffle 32, and the other end of the first side wall 311 is integrally bent and connected to the first side stop 331. The second side wall 312 is integrally bent and connected to one end of the baffle 32, and the other end of the second side wall 312 is integrally bent and connected to the second side stop 332. This allows for better resistance to external forces, such as the pressure when the bolt is screwed in and the vibration and impact generated during equipment operation. This significantly improves the overall rigidity of the self-locking nut mechanism and reduces the risk of structural damage. When the nut slides to the end point 342 of the receiving cavity 34, the stop 33 can effectively prevent the nut from sliding out, ensuring that the nut remains in the correct position within the receiving cavity 34.

[0048] In some embodiments, a first locking member 313 is provided on the outer side of the first sidewall 311, and a second locking member 314 is provided on the outer side of the second sidewall 312. These are used to engage with the edge of the mounting hole 4, providing initial fixing and final locking. In this embodiment 1, the first locking member 313 is integrally bent into shape with the first sidewall 311, and the second locking member 314 is integrally bent into shape with the second sidewall 312. Side baffles 322 are provided on both sides of the baffle 32, and the side baffles 322 are integrally bent into shape with the baffle 32. The side baffles 322 increase the constraint range of the baffle 32 on the nut, and together with the baffle 32, the first sidewall 311, and the second sidewall 312, achieve a limiting effect on the five sides of the nut.

[0049] In some embodiments, a first limiting piece 315 is provided at the other end of the first sidewall 311, and a second limiting piece 316 is provided at the other end of the second sidewall 312. The first limiting piece 315 and the second limiting piece 316 are coplanar. The first limiting piece 315 is integrally bent to the other end of the first sidewall 311, and the second limiting piece 316 is integrally bent to the other end of the second sidewall 312. This forms a top limiting structure to prevent the entire mechanism from falling into the mounting hole 4.

[0050] In some embodiments, the first limiting piece 315, the second limiting piece 316, the first side stop 331, and the second side stop 332 are located on the same plane. This coplanar structure better resists vibration and impact, reducing the shaking and displacement of the snap-fit ​​3. It also aligns and abuts against the mounting hole 4. Both the first side stop 331 and the second side stop 332 are bent perpendicularly towards the nut body 1, and also bent perpendicularly away from the nut body 1. These two perpendicular bends can be completed in one step using stamping, bending, or other forming processes, reducing production steps and processing time. Compared to complex irregular structures, this relatively regular bending design is easier to automate, improving production efficiency and product quality consistency.

[0051] During installation, align the first locking piece 313 and the second locking piece 314 of the locking piece 3 with the mounting hole 4, and press the locking piece 3 downwards. Due to the elasticity of the first sidewall 311 and the second sidewall 312 in the sidewall 31, the first locking piece 313 and the second locking piece 314 are slightly deformed inwards after being squeezed by the edge of the mounting hole 4, allowing the locking piece 3 to smoothly enter the mounting hole 4. When the first limiting piece 315 and the second limiting piece 316 contact the mounting surface, stop pressing. At this time, the first locking piece 313 and the second locking piece 314 spring back to below the mounting hole 4, forming a preliminary engagement with the edge of the mounting hole 4 to prevent the mechanism from falling off. Pass the bolt through the through hole 321 from above the mounting surface and screw it into the screw hole 11 of the nut body 1. As the bolt is screwed in, the nut body 1 is subjected to the axial tension of the bolt and slides along the receiving cavity 34 from the starting end 341 to the ending end 342. When the nut body 1 slides to the end point 342, its top contacts the first side stop 331 and the second side stop 332 of the stop 33, while the outer side wall 31 abuts against the inner limiting device 2. At this time, the nut body 1 applies outward pressure to the side wall 31 of the locking member 3, but since the locking member 3 has been restricted in deformation by the mounting hole 4, that is, the side wall 31 cannot expand outward, resulting in the first locking member 313 and the second locking member 314 forming a rigid engagement with the edge of the mounting hole 4, and the mechanism enters a locked state and cannot be disengaged from the mounting hole 4.

[0052] During disassembly, unscrew the bolt in the opposite direction. Under the action of gravity or external force, the nut body 1 retracts to the starting end 341 of the receiving cavity 34 and contacts the baffle 32 and the side baffle 322. At this time, the elastic deformation capacity is restored, and the first locking piece 313 and the second locking piece 314 are squeezed inward and deformed. Pull the locking piece 3 upward by hand or tool and move the first locking piece 313 and the second locking piece 314 toward each other, so that the locking piece 3 is disengaged from the locking state, thereby making the entire mechanism easily disengage from the mounting hole 4.

[0053] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0054] This utility model

[0055] 1. The snap-fit ​​part 3 can act as a wrench to restrict the rotation of the nut body 1, eliminating the need for traditional tools to tighten it. This effectively overcomes space limitations, significantly improves installation efficiency in confined spaces, and avoids affecting production progress and equipment assembly due to installation difficulties.

[0056] 2. Easy to operate. Simply put the nut body 1 into the starting end 341 of the receiving cavity 34, and then screw in the bolt to make it slide to the ending end 342, and lock it by contacting the limiting device 2. This greatly simplifies the installation process, reduces the installation difficulty, and improves the installation efficiency.

[0057] 3. When the bolt is screwed into the nut body 1 of the self-locking snap-fit ​​nut mechanism, the nut body 1 moves from the starting end 341 to the ending end 342 of the receiving cavity 34 under force until it contacts the inner limiting device 2. Since the snap-fit ​​part 3 cannot deform due to the influence of the surrounding environment, it locks and fixes the nut body 1, effectively preventing the nut body 1 from loosening under vibration, impact and other environments. It can continuously provide anti-loosening function, avoid connection failure caused by nut loosening, reduce the maintenance frequency and cost of the equipment, ensure stable and reliable connection between components, and improve the performance and safety of the equipment or product.

[0058] The above provides a detailed description of a self-locking snap-fit ​​nut mechanism disclosed in the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the self-locking snap-fit ​​nut mechanism and its core idea. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A self-locking snap-fit ​​nut mechanism, characterized in that, include: Nut body (1), the nut body (1) having a screw hole (11); A snap-fit ​​component (3) includes a sidewall (31) and baffles (32) and stops (33) located at both ends of the sidewall (31). A receiving cavity (34) is provided between the sidewall (31), baffles (32) and stops (33). The nut body (1) slides along the axial direction of the screw hole (11) in the receiving cavity (34). The baffle (32) is provided with a through hole (321) corresponding to the screw hole (11). The sidewall (31) is used to restrict the nut body (1) itself. Rotating, the end point (342) of the receiving cavity (34) is provided with an opening, and the stop (33) is provided at the edge of the opening; the receiving cavity (34) has a starting end (341) and an ending end (342) for sliding of the nut body (1). When the nut body (1) is located at the starting end (341), the nut body (1) abuts against the stop (32), and when the nut body (1) is located at the ending end (342), the nut body (1) abuts against the stop (33); The limiting device (2) is disposed on the side wall (31) of the receiving cavity (34). When the nut body (1) slides to the end point (342), the limiting device (2) abuts against the outer side wall (31) of the nut body (1).

2. The self-locking snap-fit ​​nut mechanism according to claim 1, characterized in that, The limiting device (2) is integrally formed with the snap-fit ​​part (3), and the limiting device (2) protrudes to one side of the nut body (1).

3. The self-locking snap-fit ​​nut mechanism according to claim 1, characterized in that, The stop (33) includes a first side stop (331) and a second side stop (332); The sidewall (31) includes: The first sidewall (311) has one end integrally bent and connected to one end of the baffle (32), and the other end of the first sidewall (311) is integrally bent and connected to the first side stop (331). The second sidewall (312) is integrally bent and connected to one end of the baffle (32), and the other end of the second sidewall (312) is integrally bent and connected to the second side stop (332).

4. The self-locking snap-fit ​​nut mechanism according to claim 3, characterized in that, A first latch (313) is provided on the outer side of the first sidewall (311), and a second latch (314) is provided on the outer side of the second sidewall (312).

5. A self-locking snap-fit ​​nut mechanism according to claim 4, characterized in that, The first card (313) is integrally bent into shape with the first side wall (311), and the second card (314) is integrally bent into shape with the second side wall (312).

6. A self-locking snap-fit ​​nut mechanism according to claim 3, characterized in that, The baffle (32) has side baffles (322) on both sides, and the side baffles (322) and the baffle (32) are integrally bent together.

7. A self-locking snap-fit ​​nut mechanism according to claim 3, characterized in that, The other end of the first sidewall (311) is provided with a first limiting piece (315), and the other end of the second sidewall (312) is provided with a second limiting piece (316). The first limiting piece (315) and the second limiting piece (316) are coplanar.

8. A self-locking snap-fit ​​nut mechanism according to claim 7, characterized in that, The first limiting piece (315) is integrally bent to the other end of the first sidewall (311), and the second limiting piece (316) is integrally bent to the other end of the second sidewall (312).

9. A self-locking snap-fit ​​nut mechanism according to claim 8, characterized in that, The first limiting piece (315), the second limiting piece (316), the first side stop (331), and the second side stop (332) are located on the same plane.

10. A self-locking snap-fit ​​nut mechanism according to claim 9, characterized in that, The first side stop (331) and the second side stop (332) are both bent vertically toward the nut body (1), and the first side stop (331) and the second side stop (332) are bent vertically away from the nut body (1).

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