Spring fastener and decorating part

Abstract

The utility model relates to the technical field of spring buckle structures, and provides a spring buckle and a decorating part, the spring buckle comprises a shell and a trigger, the shell comprises a shell part and a buckle hook part, and an opening is formed between the shell part and the buckle hook part; the trigger comprises a main body part, an opening and closing part and a wrench part, the main body part is rotationally connected to the shell part, an elastic reset piece is arranged on the main body part, and the elastic reset piece acts on the main body part and enables the opening and closing part to be located at the opening; wherein the main body part is provided with a first end face facing the shell part, a first protruding structure is arranged on the first end face, the area of the end face, facing the shell part, of the first protruding structure is smaller than that of the first end face, and the first protruding structure abuts against the shell part; according to the spring buckle provided by the embodiment of the invention, the friction force formed between the first convex structure and the shell part is smaller, the main body part can rotate relative to the shell part more easily by pulling the wrench part, and the main body part rotates more smoothly, so that the experience effect of a user can be effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of spring buckle structures, and in particular provides a spring buckle and a decorative piece. Background Art

[0002] The spring buckle structure can be used for connection and disconnection during the wearing and removal of precious metal ornaments (such as bracelets, necklaces, etc.).

[0003] Existing spring buckles are mainly divided into three parts: a housing, a trigger, and a return spring. Among them, the hook part of the housing and the opening and closing part of the trigger are closed in the natural state, and an elastic return member is arranged inside the trigger to achieve the effect of elastic opening and closing by pulling the trigger.

[0004] However, during the process of pulling the trigger, the trigger rotates relative to the housing, and during the rotation of the trigger, due to its large contact area with the housing, the frictional force is large, and the rotation process of the trigger is more difficult, resulting in a poor user experience when using the spring buckle. Utility Model Content

[0005] The purpose of the embodiments of this application is to provide a spring buckle and a decorative piece, aiming to solve the problem that during the process of pulling the trigger of the spring buckle in the related art, the frictional force between the trigger and the housing is large, resulting in difficult rotation of the trigger when pulled.

[0006] To achieve the above purpose, the technical solution adopted in the embodiments of this application is:

[0007] In a first aspect, the embodiments of this application provide a spring buckle, including a housing and a trigger. The housing includes a housing part and a hook part arranged on the housing part, and an opening is formed between the housing part and the hook part. The trigger includes a main body part, an opening and closing part and a handle part arranged on the main body part. The main body part is rotatably connected to the housing part, and an elastic return member is arranged on the main body part. The elastic return member acts on the main body part and makes the opening and closing part located at the opening. Among them, the main body part has a first end face facing the housing part, and a first convex structure is arranged on the first end face. The area of the end face of the first convex structure facing the housing part is smaller than the area of the first end face, and the first convex structure abuts against the housing part.

[0008] Advantages of the embodiments of the present application: The spring buckle provided by the embodiments of the present application has a trigger body portion rotatably connected to the housing portion, and a first convex structure is provided on the first end surface of the body portion facing the housing portion. When the trigger handle is pulled, the body portion can rotate relative to the housing portion. At this time, the first convex structure located on the first end surface can form friction with the surface of the housing portion instead of the first end surface. Since the end surface area of the first convex structure facing the housing portion is smaller than the area of the first end surface, the contact area between the first convex structure and the housing portion is smaller than the contact area between the first end surface and the housing portion. Therefore, the frictional force formed between the first convex structure and the housing portion is smaller. Thus, pulling the trigger handle can more easily make the body portion rotate relative to the housing portion, and the rotation of the body portion is more smooth. Therefore, the user experience effect can be effectively improved.

[0009] In some embodiments, the number of the first convex structures is at least two, and the first convex structures are respectively arranged at intervals.

[0010] In some embodiments, the first convex structure includes convex points protruding from the first end surface. The convex points rotate synchronously with the body portion and form a movement trajectory. In the direction perpendicular to the first end surface, the projection of the movement trajectory is included in the projection of the housing portion.

[0011] In some embodiments, a weight-reducing hole is provided on the housing portion.

[0012] In some embodiments, in the direction perpendicular to the first end surface, the projection of the movement trajectory is separated from the projection of the weight-reducing hole.

[0013] In some embodiments, a rotating structure is further provided on the first end surface, and a rotating hole is provided on the housing portion. The rotating structure is inserted into the rotating hole. The body portion is configured to be able to rotate in the unlocking direction so that the opening and closing portion opens the opening, and the elastic resetting member is compressed.

[0014] In some embodiments, the body portion has a second end surface opposite to the first end surface, and an annular placement groove is provided on the second end surface;

[0015] The elastic resetting member is a torsion spring. The torsion spring includes a spring coil and a first elastic arm and a second elastic arm provided at opposite ends of the spring coil. The spring coil is accommodated in the placement groove, and the first elastic arm is connected to the body portion;

[0016] A limiting portion is provided on one side of the housing portion facing the body portion. In the unlocking direction, the limiting portion is located downstream of the second elastic arm, and the second elastic arm abuts against the limiting portion.

[0017] In some embodiments, at least one second convex structure is provided on the second end face.

[0018] In some embodiments, the outer shell further includes a connecting portion, and the two opposite ends of the connecting portion are respectively provided with the housing portions.

[0019] In a second aspect, an embodiment of the present application further provides a decorative member, which includes a decorative main body and the spring buckle as described above, and the spring buckle is connected to the decorative main body.

[0020] Beneficial effects of the embodiments of the present application: The decorative member provided by the embodiments of the present application includes the spring buckle as described above. When the spring buckle can more easily trigger the trigger handle to rotate the main body of the trigger, the decorative member is easier to open, close and wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of the spring buckle provided by the embodiment of the present application;

[0023] Figure 2 It is a schematic structural diagram of the outer shell provided by the embodiment of the present application;

[0024] Figure 3 It is a schematic side view of the trigger provided by the embodiment of the present application;

[0025] Figure 4 It is a schematic view of the other side of the trigger provided by the embodiment of the present application;

[0026] Figure 5 It is an exploded view of another spring buckle provided by the embodiment of the present application.

[0027] Among them, the reference numerals in the drawings are as follows:

[0028] 100. Spring buckle;

[0029] 10. Outer shell; 101. Opening; 11. Housing portion; 111. Weight reduction hole; 112. Rotation hole; 113. Limiting portion; 12. Hook portion;

[0030] 20. Trigger; 21. Main body; 211. First end face; 212. Second end face; 213. Placing groove; 22. Opening and closing part; 23. Trigger part; 24. First convex structure; 25. Rotating structure; 26. Second convex structure;

[0031] 30. Elastic reset member; 31. Spring coil; 32. First elastic arm; 33. Second elastic arm;

[0032] 40. Connecting part;

[0033] X. Unlocking direction. Detailed implementation mode

[0034] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation of the present application.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0037] In the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0038] The spring buckle structure can be used for connection and disconnection during the wearing and removal of precious metal ornaments (such as bracelets, necklaces, etc.). The existing spring buckles are mainly divided into three parts: a housing, a trigger, and a return spring. Among them, the hook part of the housing and the opening and closing part of the trigger are closed in the natural state, and an elastic return member is arranged inside the trigger to achieve the elastic opening and closing effect of pulling the trigger. However, during the process of pulling the trigger, the trigger will rotate relative to the housing, and during the rotation of the trigger, due to its large contact area with the housing, the frictional force is large, and the rotation process of the trigger is more difficult, resulting in a poor experience effect for users when using the spring buckle.

[0039] Based on the above considerations, in order to solve the problem that the frictional force between the trigger and the housing is large during the process of pulling the trigger of the spring buckle in the related art, resulting in difficult rotation of the trigger when pulled, a spring buckle is designed. When pulling the handle part of the trigger, the main body part can rotate relative to the housing part. At this time, the first convex structure on the first end face can form friction with the surface of the housing part instead of the first end face; since the end face area of the first convex structure facing the housing part is smaller than the area of the first end face, thus, the contact area between the first convex structure and the housing part is smaller than the contact area between the first end face and the housing part, so the frictional force formed between the first convex structure and the housing part is smaller. Therefore, pulling the handle part can more easily make the main body part rotate relative to the housing part, and the rotation of the main body part is more smooth, so the experience effect of users can be effectively improved.

[0040] Next, the spring buckle provided by the embodiment of the present application will be introduced in detail according to specific embodiments.

[0041] Please refer to Figures 1 to 4 , in the first aspect, the embodiment of the present application provides a spring buckle 100, including a housing 10 and a trigger 20. The housing 10 includes a housing part 11 and a hook part 12 arranged on the housing part 11. An opening 101 is formed between the housing part 11 and the hook part 12; the trigger 20 includes a main body part 21, an opening and closing part 22 and a handle part 23 arranged on the main body part 21. The main body part 21 is rotatably connected to the housing part 11, and an elastic return member 30 is arranged on the main body part 21. The elastic return member 30 acts on the main body part 21 and makes the opening and closing part 22 located at the opening 101; wherein, the main body part 21 has a first end face 211 facing the housing part 11, and a first convex structure 24 is arranged on the first end face 211. The area of the end face of the first convex structure 24 facing the housing part 11 is smaller than the area of the first end face 211, and the first convex structure 24 abuts against the housing part 11.

[0042] Among them, the housing part 11 is the main part of the housing 10, and the hook part 12 is arranged on the housing part 11 and forms an opening 101 with the housing part 11; thus, the function of locking can be realized by opening and then closing the opening 101 through the opening and closing part 22 of the trigger 20.

[0043] Among them, the housing part 11 can be, but is not limited to, circular, elliptical, triangular, rectangular and other polygonal structural members; the specific configuration of the housing part 11 can be customized according to actual needs. The material of the housing part 11 can be, but is not limited to, metal material, alloy material, plastic material, etc.; exemplarily, the housing part 11 can be a gold housing part 11, a silver housing part 11, a colored gold housing part 11, etc.

[0044] The buckle part 12 is arranged on the housing part 11; optionally, the buckle part 12 can be connected and fixed to the housing part 11 by means of screwing, welding, clamping, etc.; alternatively, the buckle part 12 can also be integrally formed on the housing part 11. Exemplarily, the buckle part 12 can be an arc-shaped structural member, and one end of the buckle part 12 in the shape of an arc is formed on the housing part 11, and the other end is spaced from the housing part 11 and forms an opening 101. It can be understood that the material of the buckle part 12 can be the same as that of the housing part 11.

[0045] The main body part 21 is the main part of the trigger 20, and the main body part 21 is rotatably connected to the housing part 11. Thus, by pulling the handle part 23 arranged on the main body part 21, the rotation of the main body part 21 relative to the housing part 11 can be controlled, so that the opening and closing part 22 arranged on the main body part 21 can rotate synchronously.

[0046] Among them, the main body part 21 can be, but is not limited to, circular, elliptical, triangular, rectangular and other polygonal structural members; the specific configuration of the main body part 21 can be customized according to actual needs. The material of the main body part 21 can be, but is not limited to, metal material, alloy material, plastic material, etc.; exemplarily, the main body part 21 can be a gold structure, a silver structure, a colored gold structure, etc.

[0047] The handle part 23 is a structure protruding from the main body part 21, and the user can operate and press the handle part 23 to control the main body part 21 and the opening and closing part 22. Optionally, the handle part 23 can be fixed to the main body part 21 by means of screwing, welding, clamping, etc.; alternatively, the handle part 23 can be integrally formed with the main body part 21.

[0048] The opening and closing part 22 is a structure protruding from the main body part 21. The opening and closing part 22 is normally arranged at the opening 101 so that the opening and closing part 22 closes the opening 101. Optionally, the opening and closing part 22 can be fixed to the main body part 21 by means of screwing, welding, clamping, etc.; alternatively, the opening and closing part 22 can be integrally formed with the main body part 21. By pressing the handle part 23 and making the main body part 21 rotate, the opening and closing part 22 rotates synchronously and rotates away from the opening 101, so as to achieve the purpose of opening the opening 101.

[0049] The elastic reset member 30 is disposed on the main body portion 21 and acts on the main body portion 21 to keep the main body portion 21 in its current state, that is, the opening and closing portion 22 disposed on the main body portion 21 is kept in the state of being disposed at the opening 101. When the trigger portion 23 is pressed and the main body portion 21 rotates and the opening and closing portion 22 rotates away from the opening 101, the force applied to the trigger portion 23 is released, and the elastic reset member 30 can drive the main body portion 21 back to its original position according to its own elastic restoring force, that is, the opening and closing portion 22 returns to the state of being disposed at the opening 101.

[0050] Among them, the elastic reset member 30 can be, but is not limited to, a torsion spring or other elastic structures capable of realizing torsional restoration.

[0051] The main body portion 21 has a first end face 211, and a first convex structure 24 is disposed on the first end face 211; thus, the first convex structure 24 can support on the surface of the housing portion 11 instead of the first end face 211 and form friction. At the same time, since the area of the end face of the first convex structure 24 facing the housing portion 11 is smaller than the area of the first end face 211, therefore, the friction force between the first convex structure 24 and the housing portion 11 is smaller.

[0052] Optionally, the first convex structure 24 includes, but is not limited to, a bump structure, a rib structure, a bump dot structure, etc.; the number of the first convex structures 24 can be one, two or any number more than two.

[0053] In the spring buckle 100 provided by the embodiment of the present application, the main body portion 21 of the trigger 20 is rotatably connected to the housing portion 11, and a first convex structure 24 is disposed on the first end face 211 of the main body portion 21 facing the housing portion 11. When the trigger portion 23 of the trigger 20 is pulled, the main body portion 21 can rotate relative to the housing portion 11. At this time, the first convex structure 24 located on the first end face 211 can form friction with the surface of the housing portion 11 instead of the first end face 211; since the area of the end face of the first convex structure 24 facing the housing portion 11 is smaller than the area of the first end face 211, thus, the contact area between the first convex structure 24 and the housing portion 11 is smaller than the contact area between the first end face 211 and the housing portion 11, so that the friction force formed between the first convex structure 24 and the housing portion 11 is smaller. Therefore, pulling the trigger portion 23 can more easily make the main body portion 21 rotate relative to the housing portion 11, and the rotation of the main body portion 21 is more smooth, so that the user experience effect can be effectively improved.

[0054] Please refer to Figures 1 to 4 , in some embodiments, the number of the first convex structures 24 is at least two, and the first convex structures 24 are respectively arranged at intervals.

[0055] Understandably, the number of the first convex structures 24 is set to two or more, and the first convex structures 24 are spaced apart from each other; thus, each first convex structure 24 can form a multi-point support for the main body portion 21, and the main body portion 21 is more stable during rotation.

[0056] Exemplarily, in some embodiments, the first convex structure 24 can be a convex point structure, and the number of convex point structures can be multiple, and the multiple convex points can be respectively arranged at intervals; thus, the convex point structure can not only reduce the friction force when the main body portion 21 and the housing portion 11 rotate relative to each other, and at the same time, the convex point structure can also form a better supporting effect on the main body portion 21.

[0057] Please refer to Figures 1 to 4 , in some embodiments, the first convex structure 24 includes convex points protruding from the first end face 211, and the convex points rotate synchronously with the main body portion 21 to form a moving track, and in the direction perpendicular to the first end face 211, the projection of the moving track is included in the projection of the housing portion 11.

[0058] In this embodiment, the first convex structure 24 includes convex points; understandably, the surface area of the convex points is small, so the contact area between the convex points and the housing portion 11 is small; the friction force formed between the convex points and the housing portion 11 is relatively small.

[0059] Understandably, when the main body portion 21 rotates relative to the housing portion 11, the convex points will rotate synchronously; thus, the path passed by the rotation of the convex points is their moving track.

[0060] With such a setting, in the direction perpendicular to the first end face 211, the projection of the moving track is included in the projection of the housing portion 11, that is, the path passed by the rotation of the convex points is within the range of the housing portion 11, and the convex points will not rotate to be separated from the housing portion 11. Thus, the convex points can always support on the housing portion 11, and the supporting effect of the convex points on the main body portion 21 is better.

[0061] Please refer to Figures 1 to 4 , in some embodiments, a weight-reducing hole 111 is formed in the housing portion 11.

[0062] Understandably, by forming the weight-reducing hole 111 in the housing portion 11, the material used for the housing portion 11 can be reduced, so that the weight of the housing portion 11 can also be effectively reduced.

[0063] Among them, the weight-reducing hole 111 can be but is not limited to a round hole, a rectangular hole or an irregular hole; the number of the weight-reducing holes 111 can be one or any number more than one.

[0064] Please refer to Figures 1 to 4, in some embodiments, in a direction perpendicular to the first end face 211, the projection of the movement locus is separated from the projection of the weight reduction hole 111.

[0065] It can be understood that the projection of the movement locus of the bump is set to be separated from the projection of the weight reduction hole 111. Thus, the movement path of the bump does not pass through the range of the weight reduction hole 111, and the bump can always support on the housing part 11, and the supporting effect of the bump on the main body part 21 is better.

[0066] Please refer to Figures 1 to 4 , in some embodiments, a rotation structure 25 is further provided on the first end face 211, a rotation hole 112 is formed on the housing part 11, and the rotation structure 25 is inserted into the rotation hole 112; the main body part 21 is configured to be able to rotate along the unlocking direction X so that the opening and closing part 22 opens the opening 101, and the elastic resetting member 30 is compressed.

[0067] The rotation structure 25 can be but is not limited to structures such as a rotating shaft and a rotating block; the rotation structure 25 is used to be inserted into the rotation hole 112 and can freely rotate in the rotation hole 112 so that the main body part 21 can rotate around the central axis of the rotation structure 25.

[0068] Wherein, the unlocking direction X refers to the direction in which the main body part 21 rotates so that the opening and closing part 22 rotates away from the opening 101. And during the rotation of the main body part 21 in the unlocking direction X, the elastic resetting member 30 will be compressed.

[0069] Exemplarily, in some embodiments, the wrench part 23 can be pressed so that the main body part 21 rotates along the unlocking direction X, and the opening and closing part 22 rotates to the inner side of the hook part 12 and rotates away from the opening 101; when the pressure on the wrench part 23 is cancelled, the elastic resetting member 30 can act on the main body part 21 to make the main body part 21 rotate back to its original position, and at this time the opening and closing part 22 synchronously rotates to the opening 101.

[0070] Please refer to Figures 1 to 4 , in some embodiments, the main body part 21 has a second end face 212 opposite to the first end face 211, and an annular placement groove 213 is formed on the second end face 212; the elastic resetting member 30 is a torsion spring, and the torsion spring includes a spring coil 31 and a first elastic arm 32 and a second elastic arm 33 provided at opposite ends of the spring coil 31; the spring coil 31 is accommodated in the placement groove 213, the first elastic arm 32 is connected to the main body part 21; a limiting part 113 is provided on one side of the housing part 11 facing the main body part 21, in the unlocking direction X, the limiting part 113 is located downstream of the second elastic arm 33, and the second elastic arm 33 abuts against the limiting part 113.

[0071] By forming the placement groove 213 on the second end face 212 of the main body part 21, the spring coil 31 of the torsion spring can be accommodated in the placement groove 213.

[0072] The first elastic arm 32 of the torsion spring is connected to the main body portion 21. At the same time, a limiting portion 113 is further provided downstream of the second elastic arm 33 of the torsion spring in the unlocking direction X. Thus, when the trigger portion 23 is pulled to cause the main body portion 21 to rotate towards the unlocking portion, the opening and closing portion 22 can rotate away from the opening 101 to achieve unlocking. At the same time, the second elastic arm 33 abuts against and is limited on the limiting portion 113. Since the first elastic arm 32 is connected to the main body portion 21, the second elastic arm 33 is limited and cannot move in the unlocking direction X, so that the first elastic arm 32 and the second elastic arm 33 are relatively compressed, and thus the spring coil 31 is compressed. When the trigger portion 23 is released, according to the self-elastic restoring force of the spring coil 31, the second elastic arm 33 exerts a force on the limiting portion 113, so that the first elastic arm 32 can drive the main body portion 21 to rotate away from the unlocking direction X and cause the main body portion 21 to rotate back to its original position. At this time, the opening and closing portion 22 can also rotate back to the opening 101 again.

[0073] Please refer to Figures 1 to 4 In some embodiments, at least one second protrusion structure 26 is provided on the second end face 212.

[0074] It can be understood that at least one second protrusion structure 26 can also be provided on the second end face 212. When the second end face 212 can also form contact with the housing portion 11, the second protrusion structure 26 can also effectively reduce the contact area between the main body portion 21 and the housing portion 11, and further reduce the friction force between the main body portion 21 and the housing portion 11.

[0075] Optionally, the second protrusion structure 26 includes but is not limited to a bump structure, a rib structure, a bump point structure, etc.; the number of the second protrusion structures 26 can be one, two or any number more than two.

[0076] Please refer to Figures 2 to 5 In some embodiments, the outer shell 10 further includes a connecting portion 40, and housing portions 11 are respectively provided at opposite ends of the connecting portion 40.

[0077] Among them, the connecting portion 40 is used to connect the two housing portions 11 into one body. Optionally, the connecting portion 40 can be but is not limited to a connecting rod, a connecting arc, a connecting block and other connecting structures. Exemplarily, in some embodiments, the connecting portion 40 can be a rod-shaped connecting structure. The opposite ends of the connecting portion 40 are respectively connected to the housing portions 11, and the main body portions 21 are respectively rotatably connected to the housing portions 11 at both ends. Thus, the locking function can be achieved at both opposite ends of the connecting portion 40.

[0078] Please refer to Figures 1 to 5, In a second aspect, an embodiment of the present application further provides an ornament (not shown in the figure). The ornament includes an ornament main body and the spring buckle 100 as described above, and the spring buckle 100 is connected to the ornament main body.

[0079] It can be understood that the ornament includes, but is not limited to, structures with ornamental properties such as earrings, pendants, bracelets, necklaces, rings, etc. The materials of the ornament include, but are not limited to, gold, colored gold, silver, diamonds, pearls, agate, etc.

[0080] Among them, the ornament main body is the main part of the ornament. Exemplarily, taking the ornament as a necklace as an example, the ornament main body of the necklace is the entire chain body part, and the spring buckle 100 is a structure provided at the end of the chain body part for connecting the opposite ends of the chain body part.

[0081] For the ornament provided by the embodiment of the present application, including the above-mentioned spring buckle 100, when the above-mentioned spring buckle 100 can more easily trigger the trigger handle 23 to rotate the main body 21 of the trigger 20, the ornament is easier to open and close and wear.

[0082] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A spring buckle, characterized in that: include: A shell, the shell comprising a shell portion and a buckle hook portion disposed on the shell portion, and an opening is formed between the shell portion and the buckle hook portion; as well as A trigger, the trigger comprising a main body, an opening and closing portion and a wrench portion arranged on the main body, the main body being rotatably connected to the housing, an elastic reset member being arranged on the main body, the elastic reset member acting on the main body and causing the opening and closing portion to be located at the opening; The main body has a first end face facing the shell body, a first protruding structure is arranged on the first end face, an area of ​​the end face of the first protruding structure facing the shell body is smaller than an area of ​​the first end face; the first protruding structure abuts against the shell body.

2. The spring buckle according to claim 1, characterized in that: The number of the first protrusion structures is at least two, and the first protrusion structures are arranged at intervals.

3. The spring buckle according to claim 2, characterized in that: The first protrusion structure includes a protrusion protruding on the first end surface, the protrusion rotates synchronously with the main body and forms a moving track, and in a direction perpendicular to the first end surface, the projection of the moving track is included in the projection of the shell body.

4. The spring buckle according to claim 3, characterized in that: The shell body is provided with a weight-reducing hole.

5. The spring buckle according to claim 4, characterized in that: In a direction perpendicular to the first end surface, a projection of the movement track is separated from a projection of the lightening hole.

6. The spring buckle according to any one of claims 1 to 5, characterized in that: A rotating structure is also provided on the first end face, a rotating hole is provided on the shell portion, and the rotating structure is inserted into the rotating hole; the main body portion is configured to be rotatable along an unlocking direction so that the opening and closing portion opens the opening and the elastic reset member is compressed.

7. The spring buckle according to claim 6, characterized in that: The main body has a second end surface opposite to the first end surface, and the second end surface is provided with an annular placement groove; The elastic return member is a torsion spring, which includes a spring coil and a first elastic arm and a second elastic arm arranged at opposite ends of the spring coil; the spring coil is accommodated in the placement groove, and the first elastic arm is connected to the main body; A limiting portion is provided on one side of the shell portion facing the main body portion. In the unlocking direction, the limiting portion is located downstream of the second elastic arm, and the second elastic arm abuts against the limiting portion.

8. The spring buckle according to claim 7, characterized in that: At least one second protrusion structure is disposed on the second end surface.

9. The spring buckle according to claim 1, characterized in that: The housing further comprises a connecting portion, and the housing portions are respectively disposed at opposite ends of the connecting portion.

10. A decorative piece, characterized in that: The decorative element comprises a decorative body and a spring buckle as claimed in any one of claims 1 to 9, wherein the spring buckle is connected to the decorative body.

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