Buckle and buckle connection structure

Abstract

The present invention relates to a buckle and a buckle connection structure, comprising: a buckle body, wherein the buckle body is formed with an assembly groove, and the buckle body is provided with a positioning matching portion located at at least one groove end of the assembly groove, wherein the positioning matching portion is used to match with a positioning reference portion preset on a first assembly body; and a holding mechanism, wherein the holding mechanism is provided on the buckle body, and the holding mechanism is used to accurately align with the assembly position preset on the first assembly body and to be fixed by snapping. The positioning matching portion can match with the positioning reference portion preset on the first assembly body, thereby guiding and positioning the mutual sliding between the buckle body and the first assembly body. This solution can eliminate the alignment deviation during assembly, ensure the effective snap connection between the buckle and the first assembly body, prevent the first assembly body from loosening and falling, and avoid the holding mechanism from being damaged by excessive extrusion, thereby ensuring the safe and reliable use of the buckle.

Description

Technical Field

[0001] The present invention relates to the technical field of parts assembly, and in particular to a buckle and a buckle connection structure. Background Art

[0002] Currently, snap-on connection structures are often encountered in fields such as automobiles, smart display devices, and robots. The so-called snap-on connection structure refers to an assembly process that uses snap-on components to form an embedded connection or an overall closed connection between one part and another. The assembly structure is simple, the operability is good, and the disassembly and assembly are convenient.

[0003] In existing snap-on assembly processes, a common method is to first insert the snap into a slot on one component, then insert the other component into the snap, using the claw structure on the snap to grip the second component to securely secure the two components. However, this connection process has the following drawbacks: when the second component has a large number of mounting locations, it is difficult to ensure that the mounting locations and the claw structure are securely aligned during insertion of the snap, resulting in misalignment. This can easily cause the second component to become loose and fall during use. Furthermore, if the claw structure fails to engage with the mounting location, it can be overly squeezed and damaged, rendering the snap useless. Summary of the Invention

[0004] Based on this, it is necessary to provide a buckle and a buckle connection structure, aiming to solve the problem that the existing technology is prone to alignment deviation, affecting assembly reliability and causing buckle extrusion damage.

[0005] In one aspect, the present application provides a buckle, comprising:

[0006] A snap body, wherein the snap body is formed with an assembly groove, and the snap body is provided with a positioning matching portion located at at least one groove end of the assembly groove, the positioning matching portion being used to match with a preset positioning reference portion on the first assembly body; and

[0007] The clamping mechanism is provided on the buckle body and is used for accurately aligning with the preset assembly position on the first assembly body and clamping and fixing it.

[0008] The snap fastener of the above scheme is mainly used in occasions where two independent parts are assembled and connected. Specifically, during actual installation, the snap fastener is first assembled into a whole with the first assembly, and then the snap fastener and the first assembly are installed as a whole into the second assembly, so as to achieve the effect of reliably assembling and fixing the first assembly with the help of the snap fastener. Specifically, when the snap fastener is assembled with the first assembly, the snap fastener body and the first assembly are pressed against each other, and the first assembly can be inserted into the assembly groove. Since a positioning matching portion is designed on the snap fastener body, the positioning matching portion can match with a preset positioning reference portion on the first assembly, thereby guiding and positioning the mutual sliding of the snap fastener body and the first assembly; under this guiding and positioning effect, it can be ensured that the holding mechanism on the snap fastener body and the assembly position on the first assembly are quickly and accurately aligned until the two are fixed to each other, and finally a quick and effective connection between the first component and the snap fastener is achieved. Compared with the traditional snap-on assembly method, this solution can eliminate the alignment deviation during assembly, ensure the effective snap-on connection between the snap and the first assembly body, prevent the first assembly body from loosening and falling, and avoid the holding mechanism from being damaged by excessive squeezing, thereby ensuring the safe and reliable use of the snap.

[0009] The technical solution of this application is further described below:

[0010] In one embodiment, the buckle body includes a connecting body, and two clamping plates arranged on the same side of the connecting body with a spacing therebetween, and the assembly groove is defined between the two clamping plates; a first accommodating through hole is provided on the clamping plate, and the clamping mechanism includes a first elastic clamping body, which is arranged on the hole wall of the first accommodating through hole and can enter or exit the assembly groove.

[0011] In one embodiment, the first elastic card body includes a first fixed body and a hook body, one end of the first fixed body is arranged near the notch of the assembly groove and connected to the hole wall of the first accommodating through hole, the other end of the first fixed body extends to the bottom of the assembly groove and is connected to the hook body, and the hook body extends toward the assembly groove.

[0012] In one embodiment, the first fixing body is provided with a first clamping portion, and the first clamping portion is arranged facing away from the assembly groove.

[0013] In one embodiment, the clamping mechanism further includes a limiting plate, which is disposed at an end of the clamping plate away from the engaging body, and extends outward in a direction away from the assembly slot.

[0014] In one embodiment, the clamping mechanism further includes a pawl, which is disposed on the limiting buckle plate and extends toward the assembly slot.

[0015] In one embodiment, the clamping mechanism also includes a second elastic card body, and the clamping plate also has a second accommodating hole located on one side of the first accommodating hole. The second elastic card body is arranged on the hole wall of the second accommodating hole and can enter or exit the assembly groove.

[0016] In one embodiment, the second elastic card body includes a second fixed body, a connecting body and an introducing body, one end of the second fixed body is arranged on the hole wall of the second accommodating through hole and is arranged close to the bottom of the assembly groove, and the second fixed body is inclined toward the outside of the buckle in the direction away from the assembly groove, one end of the connecting body is connected to the other end of the second fixed body, and the connecting body is inclined toward the inside of the assembly groove, the introducing body is connected to the other end of the connecting body, and the introducing body is inclined toward the outside of the buckle in the direction away from the assembly groove.

[0017] In one embodiment, a second clamping portion is provided on the side of the second fixing body facing away from the assembly groove, a third clamping portion is provided at the junction of the second fixing body and the connecting body facing away from the assembly groove, a fourth clamping portion is provided on the side of the connecting body facing away from the assembly groove, and a fifth clamping portion is provided at the junction of the connecting body and the introducing body facing the assembly groove.

[0018] In addition, the present application also provides a snap connection structure, which includes:

[0019] first assembly;

[0020] a second assembly; and

[0021] As for the buckle as described above, the first assembly body and the second assembly body are assembled and fixed by being connected with the buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is an assembly diagram of a snap connection structure according to an embodiment of the present invention;

[0025] Figure 2for Figure 1 Exploded structure diagram;

[0026] Figure 3 This is a schematic structural diagram of a buckle according to an embodiment of the present invention;

[0027] Figure 4 for Figure 3 A structural diagram from another perspective;

[0028] Figure 5 for Figure 4 Schematic diagram of the right view structure;

[0029] Figure 6 for Figure 5 A structural diagram from another perspective;

[0030] Figure 7 Schematic diagram of the assembly structure of the first assembly body and the buckle in the present invention;

[0031] Figure 8 This is a first state diagram of the first assembly body and the buckle being assembled with the second assembly body in the present invention;

[0032] Figure 9 A second state diagram of the first assembly body and the buckle being assembled with the second assembly body in the present invention;

[0033] Figure 10 FIG3 is a third state diagram of the first assembly body and the buckle being assembled with the second assembly body in the present invention;

[0034] Figure 11 FIG4 is a fourth state diagram of the first assembly body and the buckle being assembled with the second assembly body in the present invention;

[0035] Figure 12 This is a fifth state diagram of the first assembly body and the buckle being assembled with the second assembly body in the present invention.

[0036] Description of reference numerals:

[0037] 100. Buckle; 10. Buckle body; 11. Assembly groove; 12. Positioning and fitting portion; 13. Connecting body; 14. Card plate; 141. First accommodating through hole; 142. Second accommodating through hole; 20. Holding mechanism; 21. First elastic card body; 211. First fixed body; 212. Hook body; 213. First holding portion; 22. Positioning buckle plate; 23. Ratchet; 24. Second elastic card body; 241. Second fixed body; 242. Connecting body; 243. Introducing body; 244. Second holding portion; 245. Third holding portion; 246. Fourth holding portion; 247. Fifth holding portion; 200. First assembly body; 210. Positioning reference portion; 300. Second assembly body; 310. Through groove. DETAILED DESCRIPTION

[0038] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] like Figure 1 and Figure 2 As shown, they are respectively an assembly diagram and an exploded diagram of a snap connection structure provided in an embodiment of the present application, wherein the snap connection structure includes: a first assembly body 200, a second assembly body 300 and a snap 100, and the first assembly body 200 and the second assembly body 300 are assembled and fixed by connecting with the snap 100.

[0040] It's easy to understand that the first assembly 200 and the second assembly 300 represent various types of component products available on the market, and the two component products need to be assembled and used together. For example, the first assembly 200 could be an electrical switch socket, and the second assembly 300 could be an electrical cover that works with the socket, which can be snap-fitted to the socket via a clip 100. Alternatively, the first assembly 200 could be a lamp socket, and the second assembly 300 could be a lampshade that works with the socket, which can be snap-fitted to the socket via a clip 100.

[0041] In this embodiment, the buckle 100 is an integrated structure, which can reduce the number of parts and improve the efficiency and convenience of installation. Specifically, the buckle 100 is a "J"-shaped metal spring structure formed by bending, cutting and other machining methods on sheet metal. It has high strength, good elasticity, strong connection ability, and is reusable.

[0042] Of course, in other embodiments, the buckle 100 can also be made of other materials such as plastic into other structural shapes, which are also within the scope of protection of this application and will not be described in detail here.

[0043] Please continue reading Figures 3 to 6 , which shows a buckle 100 according to one embodiment of the present application. The buckle 100 comprises a buckle body 10 and a retaining mechanism 20. The buckle body 10 is formed with an assembly groove 11, which is used to accommodate the first assembly body 200 during assembly with the first assembly body 200. The buckle 100 is then inserted into the assembly position of the second assembly body 300. That is, after the three are assembled and connected as one, the buckle 100 is located between the first assembly body 200 and the second assembly body 300.

[0044] In addition, the buckle body 10 is provided with a positioning matching portion 12 located at at least one groove end of the assembly groove 11, and the positioning matching portion 12 is used to cooperate with the positioning reference portion 210 preset on the first assembly body 200; the holding mechanism 20 is arranged on the buckle body 10, and the holding mechanism 20 is used to accurately align with the preset assembly position on the first assembly body 200 and fix the buckle 100.

[0045] The clip 100 of the above-mentioned scheme is mainly used in situations where two independent parts are assembled and connected. Specifically, during actual installation, the clip 100 is first assembled into one with the first assembly body 200, and then the clip 100 and the first assembly body 200 are installed as a whole into the second assembly body 300, so as to achieve the effect of reliably assembling and fixing the first assembly body 200 and the second assembly body 300 with the help of the clip 100. Specifically, when the buckle 100 is assembled with the first assembly body 200, the buckle body 10 and the first assembly body 200 are pressed against each other, and the first assembly body 200 can be inserted into the assembly groove 11. Since a positioning matching portion 12 is designed on the buckle body 10, the positioning matching portion 12 can cooperate with the preset positioning reference portion 210 on the first assembly body 200, thereby guiding and positioning the mutual sliding of the buckle body 10 and the first assembly body 200; under this guiding and positioning function, it can be ensured that the holding mechanism 20 on the buckle body 10 can be quickly and accurately aligned with the assembly position on the first assembly body 200 until the two are fixed to each other by snapping 100, and finally realizing the rapid and effective connection between the first component and the buckle 100. Compared with the traditional assembly method of the buckle 100, this solution can eliminate the alignment deviation during assembly, ensure that the buckle 100 is effectively connected to the first assembly body 200, prevent the first assembly body 200 from loosening and falling, and avoid the holding mechanism 20 from being damaged by excessive squeezing, thereby ensuring the safe and reliable use of the buckle 100.

[0046] In this embodiment, the first assembly body 200 is formed as a T-shaped plate body, and the front and rear side surfaces of the vertical plate are respectively provided with protruding bars near the edges, and the step structure formed between the bars and the side surfaces forms a positioning reference portion 210. Correspondingly, the two groove ends of the clip body 10 located in the assembly groove 11 are each provided with a positioning matching portion 12. It can be understood that the positioning matching portion 12 is the two end surfaces of the clip body 10 in the length direction. Because the length of the clip body 10 is less than the distance between the two bars, when the clip body 10 and the first assembly body 200 are inserted into each other, the end surfaces of the clip body 10 abut against the bars and slide against each other, which can play a guiding and positioning role, ensuring that the clip body 10 does not misalign with the first assembly body 200, and ensuring that the clamping mechanism 20 is accurately aligned with the preset assembly positions on the front and rear side surfaces of the vertical plate and effectively clamped.

[0047] Specifically, the assembly position is set as a concave downturned structure on the front and rear sides of the vertical plate, and in order to ensure reliable engagement with the clamping mechanism 20, two downturned structures are set on each side. In addition, a concave position for avoiding air is also set on the side.

[0048] Please continue reading Figure 2 In this embodiment, the second assembly 300 is formed as a rectangular block. The block is provided with a through slot 310 extending through the thickness thereof. A stopper is provided in the through slot 310 for mating with the buckle 100 .

[0049] Please continue reading Figure 3 and Figure 5 In some embodiments, the snap body 10 includes a connecting body 13 and two clips 14 spaced apart and arranged on the same side of the connecting body 13. The two clips 14 define the assembly slot 11 between them. The two clips 14 are connected and fixed by the connecting body 13, resulting in a simple structure and a simple method for forming the assembly slot 11. Specifically, in this embodiment, the assembly slot 11 is a through-slot structure with both ends passing through. In this case, the two clips 14 are not restricted by each other and have a certain degree of deformation ability, making it easier to achieve snap assembly with the first assembly body 200 and the second assembly body 300.

[0050] Please continue reading Figure 3 and Figure 6 The card plate 14 defines a first receiving hole 141. The retaining mechanism 20 includes a first elastic retaining member 21, which is disposed on the wall of the first receiving hole 141 and is capable of entering or exiting the assembly slot 11. As the first assembly body 200 and the buckle body 10 are engaged with each other, the first elastic retaining member 21 engages with the stepped structure on the side of the first assembly body 200, thereby achieving mutual assembly and fixation between the buckle body 10 and the first assembly body 200.

[0051] Please continue reading Figures 3 to 6 Specifically, in the above embodiment, the first elastic card body 21 includes a first fixed body 211 and a hook body 212. One end of the first fixed body 211 is disposed near the notch of the assembly slot 11 and connected to the wall of the first accommodating through hole 141. The other end of the first fixed body 211 extends to the bottom of the assembly slot 11 and connects to the hook body 212. The hook body 212 extends into the assembly slot 11. The hook body 212 can be reliably connected to the buckle body 10 through the first fixed body 211. During the insertion and movement process, the hook body 212 is abutted by the side, which drives the first fixed body 211 to swing outward together until the hook body 212 is engaged with the inverted structure. Afterwards, when the side resistance is lost, the first fixed body 211 recovers its deformation by its own elastic force, thereby ensuring that the hook body 212 is effectively engaged and fixed with the inverted structure.

[0052] Please continue reading Figures 3 to 6 Furthermore, the clamping mechanism 20 further includes a limiting plate 22, which is disposed at the end of the clamping plate 14 away from the connecting body 13 and extends outwardly away from the assembly slot 11. When the first assembly body 200 and the buckle 100 are inserted into the through slot 310 of the second assembly body 300 to a certain depth, the limiting plate 22 can engage with the surface of the stopper to achieve positioning and fixation, ensuring that the buckle 100 and the second assembly body 300 are assembled in place.

[0053] Please continue reading Figure 3 , Figure 5 and Figure 6 Furthermore, the latching mechanism 20 further includes a pawl 23, which is disposed on the limiting plate 22 and extends toward the assembly slot 11. Specifically, four pawls 23 are provided, with two pawls 23 mounted at either end of the limiting plate 22 at the top of one side panel, and the remaining two pawls 23 mounted at either end of the limiting plate 22 at the top of the other side panel. When the first assembly 200 is engaged with the buckle body 10, the pawls 23 abut against the side surfaces of the first assembly 200, providing frictional resistance and further securing the connection between the buckle body 10 and the first assembly 200.

[0054] Specifically, the front and rear sides of the first assembly body 200 are designed as beveled surfaces, meaning the angle between its vertical and horizontal panels is greater than 90°. This allows the clamping jaws to grip the side surfaces more tightly as the first assembly body 200 is inserted deeper into the assembly slot 11, further enhancing the connection reliability between the first assembly body 200 and the buckle body 10.

[0055] Please continue reading Figures 3 to 6 In addition to any of the above embodiments, the retaining mechanism 20 further includes a second elastic retaining member 24. The retaining plate 14 further defines a second accommodating through-hole 142 located to one side of the first accommodating through-hole 141. The second elastic retaining member 24 is disposed on the wall of the second accommodating through-hole 142 and is capable of entering or exiting the assembly slot 11. When the first assembly body 200 and the buckle 100 are inserted as a whole into the through-slot 310 of the second assembly body 300, the second elastic retaining member 24 deforms to retain the through-slot 310, thereby ensuring a secure and reliable assembly of the three.

[0056] In some embodiments, the second elastic card body 24 includes a second fixed body 241, a connecting body 242 and an introducing body 243, one end of the second fixed body 241 is arranged on the hole wall of the second accommodating through hole 142 and is arranged close to the bottom of the assembly groove 11, and the second fixed body 241 is inclined toward the outside of the buckle 100 in the direction away from the assembly groove 11, one end of the connecting body 242 is connected to the other end of the second fixed body 241, and the connecting body 242 is inclined toward the inside of the assembly groove 11, the introducing body 243 is connected to the other end of the connecting body 242, and the introducing body 243 is inclined toward the outside of the buckle 100 in the direction away from the assembly groove 11.

[0057] Please continue reading Figure 3 , Figure 5 and Figure 6 In other words, in this application, the first elastic clamping body 21 is formed as a whole into a "J"-shaped structure, and the second elastic clamping body 24 is formed as a whole into an "S"-shaped structure. With this structural design, the first elastic clamping body 21 and the second elastic clamping body 24 can respectively form an elastic clamping effect on the first assembly body 200 and the second assembly body 300, ensuring a reliable assembly connection between the buckle 100, the first assembly body 200 and the second assembly body 300.

[0058] In one embodiment, the first fixing body 211 is provided with a first clamping portion 213, which is disposed facing away from the assembly slot 11. The second fixing body 241 is provided with a second clamping portion 244 on the side facing away from the assembly slot 11. A third clamping portion 245 facing away from the assembly slot 11 is provided at the junction of the second fixing body 241 and the connecting body 242. A fourth clamping portion 246 is provided on the side facing away from the assembly slot 11 of the connecting body 242. A fifth clamping portion 247 facing toward the assembly slot 11 is provided at the junction of the connecting body 242 and the introducing body 243.

[0059] The following, along with several assembly demonstration diagrams, details the assembly principles and process of the buckle body 10, first assembly body 200, and second assembly body 300. To facilitate the description of the technical solution, the areas within the buckle body 10 where assembly with the first assembly body 200 occurs are defined as A1, A6, and A7; the areas outside the buckle body 10 where assembly with the second assembly body 300 occurs are defined as A2, A3, A4, and A5. Specifically, A1 corresponds to the hook 212 described above; A2 corresponds to the second retaining portion 244 described above; A3 corresponds to the third retaining portion 245 described above; A4 corresponds to the fourth retaining portion 246 described above; A5 corresponds to the first retaining portion 213 described above; and A6 corresponds to the fifth retaining portion 247 described above.

[0060] The areas where the first assembly body 200 and the buckle body 10 are assembled are the friction area T0, the stop area T1, and the clearance area T2. The friction area T0 corresponds to the front and rear sides of the vertical plate of the first assembly body 200; the stop area T1 corresponds to the aforementioned step-down structure; and T2 corresponds to the aforementioned clearance recess.

[0061] The area where the first assembly body 200 and the second assembly body 300 are assembled is the restricted stop area T3.

[0062] The area where the second assembly body 300 is assembled with the buckle body 10 can be divided into four areas in the length direction, namely area B1, area B2, area B3, and area B4; the area where the second assembly body 300 is assembled with the first assembly body 200 is area B5.

[0063] Please continue reading Figure 7 , first apply a thrust Fa to make the buckle body 10 enter the first assembly 200. During the movement of the buckle body 10, the pawl 23 and the friction area T0 of the first assembly 200 slide and rub against each other. And because the angle between the friction area T0 and area A3 of the first assembly 200 is greater than 90°, the more the first assembly 200 is inserted into the buckle body 10, the greater the friction force that needs to be overcome. Finally, the tip A1 of the first elastic card body 21 reaches the stop area T1, contacts the stop area T1 and stops. Due to the friction force f1 of the pawl 23, the buckle body 10 is not easy to back out of the first assembly 200 at this time, achieving the effect of being pre-installed to the first assembly 200 and the buckle body 10;

[0064] Please continue reading Figure 8 , further thrust Fb is applied to assemble the first assembly body 200 pre-installed with the buckle body 10 into the through slot 310 of the second assembly body 300. During the movement, when area A2 of the second elastic clamping body 24 of the buckle body 10 first contacts area B1 of the second assembly body 300, the second elastic clamping body 24 is subjected to a force F1 from the second assembly body 300.

[0065] Please continue reading Figure 9As the combination of the first assembly 200 and the buckle body 10 continues to advance under the action of force Fb, the buckle body 10 is blocked by the first elastic body 21 during advancement because the force F2 required for the elastic deformation of the first elastic body 21 is greater than the force F1 required for the elastic deformation of the second elastic body 24. At this time, area A3 on the second elastic body 24 contacts area B2 on the second assembly 300, squeezing the second elastic body 24 to deform in the direction F1. Furthermore, thanks to the clearance area T2 on the first assembly 200, area A3 of the buckle body 10 gradually passes through area B2 of the second assembly 300 until it has completely passed through.

[0066] Please continue reading Figure 10 The retaining plate 22 of the clip body 10 reaches area B4 of the second assembly 300 and interlocks, securing the clip body 10 to its final assembled position. After passing through the second assembly 300, the second elastic clip body 24 naturally rebounds to its original position under the action of its elastic restoring force. After rebounding, area A4 of the second elastic clip body 24 contacts area B3 of the second assembly 300. The second assembly 300 continues to be acted upon by the elastic force F1′ of the second elastic clip body 24, preventing the clip 100 from separating from the second assembly 300 and thus securing it.

[0067] See also Figure 11 Continuing to apply the propulsion force Fc to the first assembly 200, the retaining plate 22 of the buckle body 10 and the area B4 of the second assembly 300 interfere with each other, preventing the buckle body 10 and the second assembly 300 from moving relative to each other. As a result, the first assembly 200 continues to move deeper into the buckle body 10. During this deeper movement, the following movements primarily occur: The continued application of the force Fc causes the first elastic clamp 21 to begin to deform, causing the first assembly 200 to continue to move deeper relative to the buckle body 10. After the first elastic card body 21 begins to deform, area A1 rubs against the friction area T0 of the second assembly body 300, and area A5 of the first elastic card body 21 and area B3 of the second assembly body 300 conflict with each other. The second assembly body 300 is continuously constrained by the elastic force F3′ of the first elastic card body 21. Moreover, since the angle between area T0 and area T3 of the first assembly body 200 is greater than 90°, the further downward the first assembly body 200 moves, the greater the reaction force of the elastic force F3′, and the more difficult it is for the first assembly body 200 to withdraw from the buckle body 10.

[0068] In addition, when the deepening process continues until the area T0 of the first assembly 200 contacts the area A6 of the second elastic card body 24, the deeper the first assembly 200 goes, the closer the area A6 of the second elastic card body 24 is squeezed to the second assembly 300, and the deeper the first assembly 200 goes, the greater the force of squeezing the area A6, and the greater the reaction force of the elastic force F1′ of the second elastic card body 24 on the second assembly 300, and the more difficult it is for the buckle body 10 to withdraw from the second assembly 300.

[0069] See also Figure 12 When area T3 of the first assembly 200 contacts area B5 of the second assembly 300, assembly is complete. In the final assembled state, the first assembly 200 is restrained from disengaging from the buckle 100 by the friction force f1 of area A1, the friction force f2 of area A6 of the buckle 100, and the elastic force F2′ of the tip A1. The buckle body 10 is subjected to the force F1 and force F3 from the second assembly 300, which restricts the buckle 100 from disengaging from the second assembly 300. Furthermore, since area A6 of the buckle 100 has completely passed through the clearance area T2 of the first assembly 200, the second elastic clamp 24 lacks a clearance area and cannot deform. Therefore, unless the first assembly 200 is removed from the buckle body 10, the buckle 100 will never be able to disengage from the second assembly 300.

[0070] Therefore, the buckle 100 itself forms an effective self-locking relationship, and the first assembly 200 and the second assembly 300 are indirectly and securely connected together through the buckle 100. During installation, the forces Fa, Fb, and Fc are applied one by one, while during removal, the combined forces f1 + f2 + F2′ must be overcome simultaneously. This achieves the goal of requiring less force for installation and more force for removal, making the buckle of this solution both easy to install and reliable in connection.

[0071] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0072] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

[0073] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 understood as limiting the present invention.

[0074] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0075] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0076] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0077] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

Claims

1. A buckle, characterized in that: The buckle comprises: A snap body, wherein the snap body is formed with an assembly groove, and the snap body is provided with a positioning matching portion located at at least one groove end of the assembly groove, the positioning matching portion being used to match with a preset positioning reference portion on the first assembly body; and A clamping mechanism, the clamping mechanism being provided on the buckle body and configured to be accurately aligned with a preset assembly position on the first assembly body and to be clamped and fixed; The clamping mechanism includes a first elastic clamping body, the first elastic clamping body includes a first fixed body, the first fixed body is provided with a first clamping portion, and the first clamping portion is arranged away from the assembly groove; The clip body includes a connecting body and two clips spaced apart and arranged on the same side of the connecting body. The holding mechanism also includes a limiting plate, which is arranged at an end of the clip away from the connecting body and extends outward in a direction away from the assembly slot. The clamping mechanism also includes a second elastic clamping body, which includes a second fixed body, a connecting body and an introducing body. A second clamping portion is provided on the side of the second fixed body facing away from the assembly groove, and a third clamping portion is provided at the connection between the second fixed body and the connecting body, which faces away from the assembly groove; a fourth clamping portion is provided on the side of the connecting body facing away from the assembly groove, and a fifth clamping portion is provided at the connection between the connecting body and the introducing body, which faces the assembly groove.

2. The buckle according to claim 1, characterized in that: The assembly groove is defined between the two card plates; a first accommodating through hole is opened on the card plate, and the first elastic card body is arranged on the hole wall of the first accommodating through hole and can enter or exit the assembly groove.

3. The buckle according to claim 2, characterized in that: The first elastic card body includes a hook body, one end of the first fixed body is arranged near the notch of the assembly groove and connected to the hole wall of the first accommodating through hole, the other end of the first fixed body extends to the bottom of the assembly groove and is connected to the hook body, and the hook body extends toward the assembly groove.

4. The buckle according to claim 3, characterized in that: The clamping mechanism further includes a pawl, which is arranged on the limiting buckle plate and extends toward the assembly slot.

5. The buckle according to any one of claims 3 to 4, characterized in that: The card plate is further provided with a second accommodating through hole located on one side of the first accommodating through hole. The second elastic card body is arranged on the hole wall of the second accommodating through hole and can enter or exit the assembly groove.

6. The buckle according to claim 5, characterized in that: One end of the second fixing body is arranged on the hole wall of the second accommodating through hole and is arranged close to the bottom of the assembly groove, and the second fixing body is inclined toward the outside of the buckle in the direction away from the assembly groove. One end of the connecting body is connected to the other end of the second fixing body, and the connecting body is inclined toward the inside of the assembly groove. The introducing body is connected to the other end of the connecting body, and the introducing body is inclined toward the outside of the buckle in the direction away from the assembly groove.

7. A snap connection structure, characterized in that: include: first assembly; Second assembly; as well as According to the buckle according to any one of claims 1 to 6, the first assembly body and the second assembly body are assembled and fixed by being connected to the buckle.

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