Buckle device

Abstract

The utility model relates to a buckle device which comprises a clamping assembly and a first clamping assembly, the clamping assembly comprises a first buckle and a second buckle which define a clamping space, and one end of the first buckle is rotationally connected with one end of the second buckle. The first clamping assembly is arranged at the end, away from the rotating axis of the first buckle and the rotating axis of the second buckle, of the clamping assembly and comprises a first clamping part and a second clamping part, one of the first clamping part and the second clamping part is arranged on the first buckle, and the other one of the first clamping part and the second clamping part is arranged on the second buckle. The clamping assembly is provided with a preset axis perpendicular to the rotating axis, the multiple sets of first clamping assemblies are arranged in the circumferential direction of the preset axis at intervals, clamping force can be provided in multiple directions, clamping stability is enhanced, vibration and impact are effectively resisted, it is ensured that the position of a clamped part is stable in the complex environment, and the buckling device is prevented from falling off; and meanwhile, deformation or damage caused by single-point stress of the buckle device is avoided, and the reliability and safety of the buckle device are improved.

Description

Technical Field

[0001] This application relates to the field of mechanical connection technology, and in particular to a snap-fit ​​device. Background Technology

[0002] In the field of mechanical connection and clamping, traditional snap-fit ​​devices are widely used in scenarios such as fixing vehicle components and assembling industrial equipment, but they have significant shortcomings in terms of shock resistance and preventing detachment. Traditional snap-fit ​​devices mostly adopt a single-set snap-fit ​​structure, applying force in a single direction, which makes the object in the clamping space unevenly stressed. Under conditions of vibration and impact, such as the bumps during vehicle movement, the snap-fit ​​parts are prone to loosening and cannot effectively resist external interference, thus increasing the risk of component detachment. Utility Model Content

[0003] Therefore, it is necessary to provide a locking device to address the above problems, so as to improve the shock resistance and anti-detachment performance of the locking device.

[0004] This utility model provides a buckle device, including:

[0005] The clamping assembly includes a first latch and a second latch that surround and form a clamping space, wherein one end of the first latch is rotatably connected to one end of the second latch; and

[0006] The first snap-fit ​​component is disposed at one end of the clamping component away from the rotation axis of the first buckle and the second buckle. The first snap-fit ​​component includes a first snap-fit ​​part and a second snap-fit ​​part that can snap-fit ​​with the first snap-fit ​​part. One of the first snap-fit ​​part and the second snap-fit ​​part is disposed on the first buckle, and the other is disposed on the second buckle.

[0007] The clamping assembly has a preset axis perpendicular to the rotation axis of the first latch and the second latch, and the number of the first latching assemblies is multiple sets, which are arranged circumferentially at intervals along the preset axis.

[0008] In the aforementioned latching device, the rotatable connection between the first and second latches allows the clamping components to open and close flexibly, facilitating the placement and securing of objects. Multiple sets of first latching components are arranged circumferentially along a preset axis, providing latching force from multiple directions, enhancing clamping stability, effectively resisting vibration and impact, ensuring the stability of the clamped component in complex environments, preventing the first and second latches from detaching, and avoiding deformation or damage caused by single-point force on the latching device, thus improving the reliability and safety of the latching device.

[0009] In one embodiment, the first snap-fit ​​portion is a groove, and the second snap-fit ​​portion is a protrusion.

[0010] This design, with its simple and reliable groove and protrusion structure, is easy to manufacture and assemble. It also allows the parts to fit together to form a stable snap-fit ​​structure, preventing them from coming loose during use and ensuring reliable connection.

[0011] In one embodiment, the second snap-fit ​​portion is disposed on the second buckle, and the first snap-fit ​​portion is disposed on the first buckle; the first buckle further includes a plurality of limiting ribs, the limiting ribs being disposed on the side of the first buckle opposite to the second buckle, and one limiting rib being provided between every two adjacent first snap-fit ​​portions.

[0012] This design limits the deformation of the first locking part by the limiting rib, thus improving its strength. The limiting rib also limits the circumferential displacement of the second locking part along the preset axis, improving the reliability of the locking between the first and second locking parts, thereby enhancing the overall strength and stability of the buckling device.

[0013] In one embodiment, the second latching portion includes a first guide slope facing away from the second latch, extending from one end near the second latch to one end away from the second latch, the first guide slope being inclined toward the preset axis.

[0014] With this configuration, the first guide ramp can guide the second snap-fit ​​part to smoothly enter the first snap-fit ​​part, reducing the force required for snap-fit ​​and increasing the success rate of snap-fit.

[0015] In one embodiment, the number of the first snap-fit ​​components is four sets, and the four sets of the first snap-fit ​​components are arranged at uniform intervals along the circumference of the preset axis.

[0016] With this configuration, the four sets of first snap-fit ​​components are evenly distributed, ensuring that the connection strength of the snap-fit ​​device is consistent in all directions. While ensuring the snap-fit ​​force, it also prevents the snap-fit ​​device from deflecting, thereby improving the overall stability and uniformity of the connection.

[0017] In one embodiment, the clamping assembly further includes a second snap-fit ​​assembly disposed at one end of the clamping assembly near the rotation axis. The second snap-fit ​​assembly includes a third snap-fit ​​portion and a fourth snap-fit ​​portion, one of which is disposed at the first latch and the other is disposed at the second latch.

[0018] With this configuration, the second snap-fit ​​component provides additional snap-fit ​​fixation to the other end of the clamping component, further enhancing the connection stability of the clamping component. Even if the position where the first snap and the second snap are rotatably connected is broken, the snap-fit ​​device will not fail.

[0019] In one embodiment, the third latching portion is disposed on the first buckle, and the fourth latching portion is disposed on the second buckle. The third latching portion is a groove, and the fourth latching portion is a protrusion. The fourth latching portion includes a second guide slope facing away from the second buckle, extending from one end away from the second buckle to one end close to the second buckle. The second guide slope is inclined toward the rotation axis.

[0020] With this design, the groove and protrusion structure is simple and reliable. The second guide slope can guide the fourth locking part to smoothly enter the third locking part, reducing the force required for locking and improving the success rate of locking.

[0021] In one embodiment, the buckle device further includes a fixing part, which is disposed on the side of the second buckle opposite to the first buckle, and the fixing part is used to cooperate with the vehicle body for fixation.

[0022] This design allows the fixing unit to securely install the buckle device onto the vehicle body, ensuring the stability of the buckle device during vehicle operation, preventing the buckle from loosening due to vibration or impact, and improving the reliability and safety of the buckle device.

[0023] In one embodiment, the fixing part includes a protruding structure and an anti-detachment hook disposed on the protruding structure, wherein the cross-section of the protruding structure is elliptical.

[0024] This design allows the raised structure to mate with corresponding mounting holes on the vehicle body, enabling quick positioning and initial fixation. The anti-disengagement feature prevents the latching device from accidentally coming loose during use, ensuring connection reliability. The anti-disengagement design also allows the latching device to withstand frequent vibrations, making it more convenient than bolt fixing. The elliptical cross-section design allows the raised structure to better adapt to the mounting holes on the vehicle body and prevents the latching device from rotating.

[0025] In one embodiment, the first buckle includes a first clamping portion, the second buckle includes a second clamping portion, the first clamping portion and the second clamping portion form a circular clamping space, and the inner walls of the first clamping portion and the second clamping portion are provided with protrusions.

[0026] This design allows the clamping space to accommodate various round objects, while the raised inner wall increases friction, preventing objects from slipping during clamping and improving the stability of the locking device.

[0027] In one embodiment, the first buckle and / or the second buckle are integrally formed.

[0028] This design, with the first and / or second buckles being integrally molded, simplifies the manufacturing process and reduces production costs. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A schematic diagram of the snap-fit ​​device provided in this application.

[0031] Figure 2 This is a schematic diagram of the first snap-fit ​​structure of the snap-fit ​​device provided in this application.

[0032] Figure 3 This is a schematic diagram of the second snap-fit ​​structure of the snap-fit ​​device provided in this application.

[0033] Reference numerals: 1. Fixing part; 11. Protruding structure; 12. Anti-disengagement hook; 2. Clamping assembly; 21. First buckle; 211. First clamping part; 212. Limiting rib; 213. First mating part; 214. First rotating part; 22. Second buckle; 221. Second clamping part; 222. Second mating part; 223. Second rotating part; 23. First snap-fit ​​assembly; 231. First snap-fit ​​part; 232. Second snap-fit ​​part; 2321. First guide slope; 2322. First snap-fit ​​surface; 24. Second snap-fit ​​assembly; 241. Third snap-fit ​​part; 242. Fourth snap-fit ​​part; 2421. Second guide slope; 2422. Second snap-fit ​​surface; 25. Clamping space; 26. Protrusion. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0039] In the field of mechanical connection and clamping, traditional snap-fit ​​devices are widely used in scenarios such as fixing vehicle components and assembling industrial equipment, but they have significant shortcomings in terms of shock resistance and preventing detachment. Traditional snap-fit ​​devices mostly adopt a single-set snap-fit ​​structure, applying force in a single direction, which makes the object in the clamping space unevenly stressed. Under conditions of vibration and impact, such as the bumps during vehicle movement, the snap-fit ​​parts are prone to loosening and cannot effectively resist external interference, thus increasing the risk of component detachment.

[0040] To solve the above problems, such as Figures 1 to 3 As shown, this utility model provides a buckling device to improve the buckling device's shock resistance and anti-detachment properties.

[0041] like Figures 1 to 3As shown, this application provides a latching device, including a clamping assembly 2 and a first latching assembly 23. The clamping assembly 2 includes a first latch 21 and a second latch 22 that surround and form a clamping space 25. One end of the first latch 21 is rotatably connected to one end of the second latch 22. The first latching assembly 23 is disposed at one end of the clamping assembly 2 away from the rotation axis a of the first latch 21 and the second latch 22. The first latching assembly 23 includes a first latching portion 231 and a second latching portion 232 that can latch and engage with the first latching portion 231. One of the first latching portion 231 and the second latching portion 232 is disposed on the first latch 21, and the other is disposed on the second latch 22. The clamping assembly 2 has a preset axis b perpendicular to the rotation axis a. The number of first latching assemblies 23 is multiple sets, and the multiple sets of first latching assemblies 23 are arranged circumferentially at intervals along the preset axis b.

[0042] In the aforementioned latching device, the first latch 21 and the second latch 22 are rotatably connected, allowing the clamping assembly 2 to open and close flexibly, facilitating the placement and securing of objects. Multiple sets of first latching assemblies 23 are arranged circumferentially along a preset axis b, providing latching force from multiple directions, enhancing clamping stability, effectively resisting vibration and impact, ensuring the stability of the clamped component in complex environments, preventing the first latch 21 and the second latch 22 from falling off, and avoiding deformation or damage caused by single-point force on the latching device, thus improving the reliability and safety of the latching device.

[0043] like Figure 1 As shown, in one embodiment, the first latch 21 includes a first clamping portion 211 and a first mating portion 213 and a first rotating portion 214 respectively disposed at both ends of the first clamping portion 211. The second latch 22 includes a second clamping portion 221 and a second mating portion 222 and a second rotating portion 223 respectively disposed at both ends of the second clamping portion 221. The first rotating portion 214 and the second rotating portion 223 are rotatably connected about a rotation axis a. The first clamping portion 211 and the second clamping portion 221 enclose a clamping space 25. One of the first engaging portion 231 and the second engaging portion 232 is disposed in the first mating portion 213, and the other is disposed in the second mating portion 222.

[0044] like Figures 1 to 2 As shown, in one embodiment, the first engaging portion 231 is a groove, and the second engaging portion 232 is a protrusion. Alternatively, the second engaging portion 232 can be a groove, and the first engaging portion 231 can be a protrusion. This configuration provides a simple and reliable groove and protrusion structure, which is easy to manufacture and assemble, and can cooperate with each other to form a stable engaging structure, preventing components from loosening during use and ensuring reliable connection.

[0045] In another embodiment, the first engaging portion 231 and the second engaging portion 232 may adopt complementary gear structures, hook structures, snap ring structures or magnetic adsorption structures, or other structures that can engage with each other. This embodiment of the present invention does not impose specific limitations here.

[0046] like Figures 1 to 2 As shown, in one embodiment, the second engaging portion 232 is disposed on the second mating portion 222 of the second latch 22, and the first engaging portion 231 is disposed on the first mating portion 213 of the first latch 21. The first latch 21 also includes a plurality of limiting ribs 212, which are disposed on the side of the first latch 21 away from the second latch 22. A limiting rib 212 is provided between every two adjacent first engaging portions 231, and the limiting ribs 212 are radiating outward from a preset axis b. With this arrangement, the limiting ribs 212 restrict the deformation of the first engaging portion 231, thereby improving the strength of the first engaging portion 231; the limiting ribs 212 can also restrict the circumferential displacement of the second engaging portion 232 along the preset axis b, thereby improving the reliability of the engagement between the first engaging portion 231 and the second engaging portion 232, and thus improving the overall strength and stability of the latching device.

[0047] In another embodiment, the positions of the first latching part 231 and the second latching part 232 can be interchanged, that is, the first latching part 231 is disposed on the second mating part 222 of the second buckle 22, and the second latching part 232 is disposed on the first mating part 213 of the first buckle 21.

[0048] In another embodiment, the number and shape of the limiting ribs 212 can be adjusted according to actual needs. For example, denser limiting ribs 212 can be used, or a cross-shaped limiting structure can be used.

[0049] In another embodiment, the limiting rib 212 may be designed as an adjustable structure, such as by adjusting its protruding length via threads, to accommodate different sizes of the first snap-fit ​​portion 231 and the second snap-fit ​​portion 232.

[0050] like Figure 3As shown, in one embodiment, the second engaging portion 232 includes a first guide slope 2321 facing away from the second latch 22. This configuration allows the first guide slope 2321 to guide the second engaging portion 232 smoothly into the first engaging portion 231, reducing the force required for engagement and increasing the success rate. Specifically, from the end near the second latch 22 to the end away from the second latch 22, the first guide slope 2321 is inclined towards a preset axis b. Furthermore, the second engaging portion 232 also includes a first engaging surface 2322 facing the second latch 22. When the first engaging portion 231 engages with the second engaging portion 232, the first engaging surface 2322 can abut against the side of the first mating portion 213 facing away from the second mating portion 222. This configuration enables self-locking of the latching device, preventing accidental disengagement under reverse force.

[0051] In another embodiment, the first guide slope 2321 is inclined toward the preset axis b from the end away from the second latch 22 to the end near the second latch 22.

[0052] In another embodiment, the first guide slope 2321 can also be designed as a multi-level slope or a curved surface to adapt to different snap-fit ​​requirements and improve the stability and reliability of the snap-fit.

[0053] In another embodiment, the first snap-fit ​​portion 231 can also be designed with a beveled structure. The angle of the bevel can be adjusted according to actual needs to optimize the mechanical properties during the snap-fit ​​process.

[0054] like Figure 1 As shown, in one embodiment, the number of first snap-fit ​​components 23 is four sets, and the four sets of first snap-fit ​​components 23 are evenly spaced along the circumference of a preset axis b, that is, the first snap-fit ​​components 23 are distributed in a cross shape. With this arrangement, the four sets of first snap-fit ​​components 23 are evenly distributed, ensuring that the connection strength of the snap-fit ​​device is consistent in all directions. While ensuring the snap-fit ​​force, it avoids the snap-fit ​​device from deflection, thereby improving the stability and uniformity of the overall connection.

[0055] In another embodiment, the number of first snap-fit ​​components 23 can be increased or decreased according to actual needs. For example, for small objects, the number of first snap-fit ​​components 23 can be reduced to two or three sets, while for large objects, the number of first snap-fit ​​components 23 can be increased to five or six sets or more.

[0056] In another embodiment, the arrangement of the first snap-fit ​​component 23 can also be non-uniformly spaced, and a specific arrangement pattern can be designed according to the shape and force characteristics of the clamped object to improve the targeting and effectiveness of the arrangement of the first snap-fit ​​component 23.

[0057] like Figures 1 to 3As shown, in one embodiment, the clamping assembly 2 further includes a second locking assembly 24, which is disposed at one end of the clamping assembly 2 near the rotation axis a. The second locking assembly 24 includes a third locking portion 241 and a fourth locking portion 242. One of the third locking portion 241 and the fourth locking portion 242 is disposed on the first rotating portion 214 of the first latch 21, and the other is disposed on the second rotating portion 223 of the second latch 22. With this configuration, the second locking assembly 24 provides additional locking fixation for the other end of the clamping assembly 2. Even if the rotational connection between the first latch 21 and the second latch 22 is broken, the latching device will not fail, further enhancing the connection stability of the latching device.

[0058] In another embodiment, the number of second snap-fit ​​components 24 can be increased or decreased according to actual needs. For example, for small objects, the number of second snap-fit ​​components 24 can be reduced to two or three sets, while for large objects, the number of second snap-fit ​​components 24 can be increased to five or six sets or more.

[0059] like Figures 1 to 3 As shown, in one embodiment, the third engaging portion 241 is a groove, and the fourth engaging portion 242 is a protrusion. Alternatively, the third engaging portion 241 can be a groove, and the fourth engaging portion 242 can be a protrusion. The groove and protrusion structure is simple and reliable, easy to manufacture and assemble, and can cooperate with each other to form a stable engaging structure, preventing the components from loosening during use and ensuring connection reliability.

[0060] In another embodiment, the third engaging portion 241 and the fourth engaging portion 242 can adopt complementary gear structures, hook structures, snap ring structures, or magnetic adsorption structures, or other structures capable of interlocking. This embodiment of the present invention does not impose specific limitations. Furthermore, the second engaging component 24 can be designed with a different structure from the first engaging component 23, such as a spring snap, a threaded snap, or a magnetic snap, to achieve different engaging effects. The second engaging component 24 can work in conjunction with the first engaging component 23 to provide a more stable engaging force.

[0061] like Figures 1 to 3As shown, in one embodiment, a third engaging portion 241 is disposed on the first latch 21, and a fourth engaging portion 242 is disposed on the second latch 22. The fourth engaging portion 242 includes a second guide slope 2421 facing away from the second latch 22. This arrangement allows the second guide slope 2421 to guide the fourth engaging portion 242 smoothly into the third engaging portion 241, reducing the force required for engagement and increasing the success rate of engagement. Specifically, from the end furthest from the second latch 22 to the end closest to the second latch 22, the second guide slope 2421 is inclined towards the rotation axis a. Furthermore, the fourth engaging portion 242 also includes a second engaging surface 2422 facing the second latch 22. When the third engaging portion 241 engages with the fourth engaging portion 242, the second engaging surface 2422 can abut against the side of the first rotating portion 214 facing away from the second rotating portion 223. This arrangement enables the latching device to self-lock, preventing accidental disengagement under reverse force.

[0062] In another embodiment, the second guide slope 2421 is inclined toward the rotation axis a from the end near the second latch 22 to the end away from the second latch 22.

[0063] In another embodiment, the second guide slope 2421 can also be designed as a multi-level slope or a curved surface to adapt to different snap-fit ​​requirements and improve the stability and reliability of the snap-fit.

[0064] In another embodiment, the third snap-fit ​​portion 241 can also be designed with a beveled structure. The angle of the bevel can be adjusted according to actual needs to optimize the mechanical properties during the snap-fit ​​process.

[0065] like Figure 1 As shown, in one embodiment, the latching device further includes a fixing part 1, which is disposed on the side of the second latch 22 opposite to the first latch 21. The fixing part 1 is used to cooperate and fix with the vehicle body. With this configuration, the fixing part 1 can firmly install the latching device on the vehicle body, ensuring the stability of the latching device during vehicle operation, preventing the latch from loosening due to vibration or impact, and improving the reliability and safety of the latching device.

[0066] like Figure 1As shown, in one embodiment, the fixing part 1 includes a protruding structure 11 and an anti-disengagement hook 12 disposed on the protruding structure 11. The cross-section of the protruding structure 11 is elliptical. This configuration allows the protruding structure 11 to mate with corresponding mounting holes on the vehicle body, achieving quick positioning and initial fixing. The anti-disengagement hook 12 prevents the latching device from accidentally disengaging during use, ensuring connection reliability. The design of the anti-disengagement hook 12 allows the latching device to withstand frequent vibration environments, making it more convenient than bolt fixing. The elliptical cross-section design allows the protruding structure 11 to better adapt to the mounting holes on the vehicle body and prevents the latching device from rotating. The anti-disengagement hook 12 can be disposed on the outer peripheral wall of the protruding structure 11, for example, on one or both sides of the protruding structure 11.

[0067] The number of fixing parts 1 can be one, two or more. In the illustrated embodiment, the two fixing parts 1 are respectively located on the second mating part 222 and the second rotating part 223 of the second buckle 22.

[0068] In another embodiment, the cross-section of the protrusion structure 11 can be designed as circular, square or other shapes to adapt to the structure of different vehicle body mounting holes.

[0069] In another embodiment, the anti-detachment hook 12 can be designed as a rotatable hook structure to facilitate quick release of the latching device when needed.

[0070] In another embodiment, the anti-disengagement hook 12 can be a snap ring, pawl, or other type of locking mechanism.

[0071] like Figure 1 As shown, in one embodiment, the first clamping portion 211 and the second clamping portion 221 enclose a circular clamping space 25, and the inner walls of the first clamping portion 211 and the second clamping portion 221 are provided with protrusions 26. With this configuration, the clamping space 25 can accommodate the clamping needs of various circular objects such as tubular and cylindrical structures. The protrusions on the inner walls increase friction, preventing the object from sliding during clamping and improving the stability of the locking device.

[0072] In another embodiment, the clamping space 25 can be designed as an ellipse, square, triangle or other irregular shape to accommodate objects of different shapes.

[0073] In one embodiment, the first snap-fit ​​21 and the second snap-fit ​​22 are integrally molded together, simplifying the manufacturing process and reducing production costs. The first snap-fit ​​21 and the second snap-fit ​​22 can be molded in one piece using PA66 plastic. Furthermore, in the snap-fit ​​device, the first snap-fit ​​assembly 23 and the fixing part 1 are also integrally molded together with the first snap-fit ​​21 and the second snap-fit ​​22.

[0074] In another embodiment, the first buckle 21 and the second buckle 22 can be individually integrally formed, and the first buckle 21 and the second buckle 22 are rotatably connected together by a hinge, a pivot or other connection method.

[0075] In another embodiment, the first latch 21 and the second latch 22 can also be separate structures. For example, the first mating part 213, the first clamping part 211 and the first rotating part 214 are formed separately and connected by adhesive, screws or the like. The second mating part 222, the second clamping part 221 and the second rotating part 223 are formed separately and connected by adhesive, screws or the like. The first rotating part 214 and the second rotating part 223 are rotatably connected together by hinges, shafts or other connection methods.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A latching device, characterized in that, include: A clamping assembly (2), comprising a first latch (21) and a second latch (22) forming a clamping space (25), wherein one end of the first latch (21) is rotatably connected to one end of the second latch (22); and The first snap-fit ​​assembly (23) is disposed at one end of the clamping assembly (2) away from the rotation axis of the first latch (21) and the second latch (22). The first snap-fit ​​assembly (23) includes a first snap-fit ​​part (231) and a second snap-fit ​​part (232) that can snap-fit ​​with the first snap-fit ​​part (231). One of the first snap-fit ​​part (231) and the second snap-fit ​​part (232) is disposed on the first latch (21) and the other is disposed on the second latch (22). The clamping assembly (2) has a preset axis perpendicular to the rotation axis, and the number of the first snap-fit ​​assemblies (23) is multiple sets, with multiple sets of the first snap-fit ​​assemblies (23) arranged circumferentially at intervals along the preset axis.

2. The snap-fit ​​device according to claim 1, characterized in that, The first snap-fit ​​part (231) is a groove, and the second snap-fit ​​part (232) is a protrusion.

3. The snap-fit ​​device according to claim 2, characterized in that, The second snap-fit ​​portion (232) is disposed on the second buckle (22), and the first snap-fit ​​portion (231) is disposed on the first buckle (21); the first buckle (21) further includes a plurality of limiting ribs (212), the limiting ribs (212) are disposed on the side of the first buckle (21) away from the second buckle (22), and a limiting rib (212) is provided between each two adjacent first snap-fit ​​portions (231).

4. The snap-fit ​​device according to claim 2, characterized in that, The second latching portion (232) includes a first guide slope (2321) away from the second latch (22), and the first guide slope (2321) is inclined toward the preset axis from one end near the second latch (22) to one end away from the second latch (22).

5. The snap-fit ​​device according to claim 1, characterized in that, The number of the first snap-fit ​​components (23) is four sets, and the four sets of the first snap-fit ​​components (23) are evenly spaced along the circumference of the preset axis.

6. The snap-fit ​​device according to claim 1, characterized in that, The clamping assembly (2) further includes a second snap-fit ​​assembly (24), which is disposed at one end of the clamping assembly (2) near the rotation axis. The second snap-fit ​​assembly (24) includes a third snap-fit ​​portion (241) and a fourth snap-fit ​​portion (242), one of which is disposed at the first latch (21) and the other is disposed at the second latch (22).

7. The snap-fit ​​device according to claim 6, characterized in that, The third latching part (241) is provided on the first latch (21), and the fourth latching part (242) is provided on the second latch (22). The third latching part (241) is a groove, and the fourth latching part (242) is a protrusion. The fourth latching part (242) includes a second guide slope (2421) away from the second latch (22). From one end away from the second latch (22) to one end close to the second latch (22), the second guide slope (2421) is inclined toward the rotation axis.

8. The snap-fit ​​device according to claim 1, characterized in that, The buckle device further includes a fixing part (1), which is disposed on the side of the second buckle (22) away from the first buckle (21). The fixing part (1) is used to cooperate with the vehicle body for fixing.

9. The snap-fit ​​device according to claim 8, characterized in that, The fixing part (1) includes a protruding structure (11) and an anti-detachment hook (12) disposed on the protruding structure (11). The cross-section of the protruding structure (11) is elliptical.

10. The snap-fit ​​device according to claim 1, characterized in that, The first buckle (21) includes a first clamping part (211), and the second buckle (22) includes a second clamping part (221). The first clamping part (211) and the second clamping part (221) form a circular clamping space (25). The inner walls of the first clamping part (211) and the second clamping part (221) are provided with protrusions.

11. The snap-fit ​​device according to claim 1, characterized in that, The first buckle (21) and / or the second buckle (22) are integrally formed.

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