Self-rebounding lock cylinder buckle

Abstract

A self-rebounding lock cylinder buckle comprises a shell, a first connecting end and a second connecting end, the first connecting end and the second connecting end are fixedly assembled at the two ends of a rope chain to be connected respectively, and the self-rebounding lock cylinder buckle is characterized in that the first connecting end presses a compression spring to be clamped into the shell, a limiting hole is formed in the first connecting end, and the first connecting end is connected with the second connecting end. A limiting pin penetrates through the limiting hole from the shell to movably limit and assemble the first connecting end in the shell; an opening clamping groove is formed in the end, facing the second connecting end, of the first connecting end, and the second connecting end is provided with a clamping end suitable for being clamped into the opening clamping groove. The self-rebounding lock cylinder buckle is suitable for a cylindrical shape used by a necklace, a bracelet or a hand rope, the lock cylinder buckle can be pushed, pulled and locked without accurate alignment, self-resetting design is combined, self-resetting can be carried out after one-time pushing is completed, and the self-rebounding lock cylinder buckle is simple in structure and convenient and easy to use.

Description

[Technical field]

[0002] The utility model relates to the technical field of jewelry lock buckles, in particular to an automatic rebound lock buckle structure on a hand strap or leather cord. [Background technology]

[0004] With the continuous improvement of living standards, people's enthusiasm for jewelry products is also increasing, and the categories and aesthetic requirements of jewelry are becoming more and more diversified. Necklaces, bracelets and earrings are the most common jewelry pieces, which have always been loved by consumers of all levels and ages and have become major consumer products.

[0005] For bracelets, bracelets and necklaces, there are styles with integral and inseparable fixed connection structures, and there are also styles that can be worn by opening and closing with movable locks. Existing pendant buckles or connection buckles are magnetic and spring buckle locks. For the locks used on bracelets and bracelets, cylindrical / elliptical locks with smaller structures and more precise control are mostly used, such as patent CN202322386423.9, a push-type lock structure for jewelry, which includes a lock body, a first cylinder body, and a second cylinder body. The second cylinder body has a groove, and the lock body has a cavity. The cavity is provided with a locking mechanism connected or separated from the groove, and the locking mechanism includes a pressing block and a fixed shaft. The locking mechanism disclosed in the patent is a kind of locking mechanism set on the outer peripheral surface of the cylinder, which is warped outward in the radial direction of the cylinder to achieve connection and separation. The locking mechanism of this structure needs to be rotated to expose the locking mechanism, and then aligned and pressed down. If the size of the structure is relatively small, it is very challenging to operate the fineness of the person. [Summary of the invention]

[0007] In view of the existing problems, the utility model proposes a cylindrical shape suitable for necklaces, bracelets or hand ropes. The lock buckle and lock core buckle can be pushed and pulled without precise alignment, and combined with a self-resetting design, it can be self-reset after one push. The structure is simple and convenient to use.

[0008] The self-rebounding lock core buckle involved in the utility model comprises a shell, a first connecting end and a second connecting end, wherein the first connecting end and the second connecting end are respectively fixedly assembled on the two ends of the rope chain to be connected, and is characterized in that the first connecting end presses the compression spring to be inserted into the shell, and has a limiting hole at the first connecting end, and a limiting pin passes through the limiting hole from the shell to movably limit the first connecting end and assemble it in the shell; an open card slot is provided at the end of the first connecting end facing the second connecting end, and the second connecting end has a card end suitable for being inserted into the open card slot.

[0009] A portion of the first connection end is inserted into the shell, and a compression spring is sleeved around the portion of the first connection end inserted into the shell. The first connection end is pushed in the direction of the compression spring, and the opening slot of the first connection end extends out of the shell.

[0010] The first connection end integrally includes a tail section, an axial limiting section, a radial limiting section, and a protruding section, and the sections are coaxially connected in sequence to form the first connection end.

[0011] The tail section is the part fixed to the rope chain. The tail section is connected to the axial limiting section. The axial limiting section is the section with the largest aperture, and its outer diameter is greater than the inner diameter of the outer shell. The axial limiting section is an axial limiting structure for the maximum displacement of the outer shell's retraction.

[0012] The axial limiting section is connected to the radial limiting section through a transition section. The outer diameter of the radial limiting section has a clearance fit with the inner diameter of the outer shell. A limiting hole is provided on the outer circumferential surface of the axial limiting section, and the limiting hole is distributed axially on the outer circumferential surface.

[0013] The protruding section is directly connected to the axial limiting section, and the aperture of the protruding section is smaller than that of the axial limiting section. The axial diameter difference between the two forms a stepped surface for pressing the spring.

[0014] The aperture of the protruding section is smaller than the inner diameter of the spring, while the aperture of the axial limiting section is larger than the outer diameter of the spring.

[0015] An opening clamping groove is provided on the protruding section, and the overall length of the opening clamping groove plus the distance from the end face is less than the length of the limiting hole.

[0016] The second connection end includes a fixed section and a clamping end connected in sequence. The fixed section is fixedly connected to the rope chain, and the clamping end includes a head and a neck, and is locked by sliding the neck into the opening clamping groove.

[0017] A self - rebounding lock core buckle involved in the present utility model is suitable for the cylindrical form used in necklaces, bracelets, or hand ropes. It can push and pull the lock core buckle without precise alignment, and combined with a self - reset design, it can perform self - reset after one push. The structure is simple and easy to use.

Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the self - rebounding lock core buckle involved in the present utility model;

[0020] Figure 2 is the split structural schematic diagram of the self - rebounding lock core buckle involved in the present utility model;

[0021] Figure 3 is the cross - sectional view of the self - rebounding lock core buckle involved in the present utility model;

[0022] Wherein: 10. Outer shell; 20. First connection end; 21. Tail section; 22. Axial limiting section; 23. Radial limiting section; 24. Protruding section; 25. Opening clamping groove; 26. Limiting hole; 30. Second connection end; 31. Fixed section; 32. Clamping end; 40. Compression spring; 50. Limiting pin.

[0023] 100. Rope chain

Detailed implementation manners

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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, so it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0026] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, the term "comprising" and any deformation thereof are intended to cover non-exclusive inclusion.

[0027] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0028] The present utility model will be further described below with reference to the drawings and preferred embodiments.

[0029] Please refer to the attached Figure 1 , which shows the self - rebounding lock core buckle involved in the utility model. This lock core buckle is used at both ends of the rope chain 100 to connect the rope chain 100. The lock core buckle includes a housing 10, a first connection end 20, and a second connection end 30. The first connection end 20 and the second connection end 30 are respectively fixedly assembled at the two ends of the rope chain to be connected. Through the assembly combination between the two connection ends and the housing, the opening and closing action process is completed, so as to realize the opening and closing operation and wearing of the rope chain.

[0030] The first connection end 20 presses the compression spring 40 and is snapped into the housing 10. The first connection end 20 is assembled into the housing and has the freedom to move within the range of the housing through the compression spring 40.

[0031] The first connection end 20 has a limiting hole 26, and a limiting pin 50 passes through the limiting hole 24 from the shell 10 to movably limit the first connection end 20 and assemble it in the shell 10; the first connection end 20 has an open slot 25 at the end facing the second connection end 30, and the second connection end 30 has a card end 32 suitable for being inserted into the open slot 25.

[0032] A portion of the first connection end 20 is inserted into the housing 10 , and a compression spring 40 is sleeved around the portion of the first connection end 10 inserted into the housing. The first connection end 20 is pushed in the direction of the compression spring 40 , and the opening slot 25 of the first connection end extends out of the housing.

[0033] The first connecting end 20 integrally includes a tail section 21 , an axial limiting section 22 , a radial limiting section 23 and a protruding section 24 , and the sections are coaxially connected in sequence to form the first connecting end 20 .

[0034] The tail section 21 is a part fixed to the rope chain. The tail section 21 is connected to the axial limit section 22. The axial limit section 22 is a section with the largest aperture. Its outer diameter is larger than the inner diameter of the housing 10. The axial limit section 22 is an axial limit structure for the maximum displacement of the housing 10.

[0035] The axial limiting section 22 is connected to the radial limiting section 23 through a transition section. The outer diameter of the radial limiting section 23 is clearance-matched with the inner diameter of the shell. Limiting holes 26 are provided on the outer circumferential surface of the axial limiting section 22. The limiting holes 26 are distributed axially on the outer circumferential surface.

[0036] The extending section 24 is directly connected to the axial limiting section 22 , and the aperture of the extending section 24 is smaller than the aperture of the axial limiting section 22 , and the difference in axial diameters between the two constitutes a step surface that presses the spring.

[0037] The aperture of the extension section 24 is smaller than the inner diameter of the compression spring 40, while the aperture of the axial limiting section 22 is larger than the outer diameter of the compression spring 40. In this way, the compression spring is conveniently sleeved outside the extension section 24 and supported by the axial limiting section 22.

[0038] The extension section 24 is provided with an open slot 25, and the entirety of the open slot 25 plus the distance from the end face is less than the length of the limiting hole. The requirement of this design is that the first connection end 20 is pushed toward the compression spring 40 through the cooperation of the limiting hole 26 and the limiting pin 50, and the distance between them is further compressed, and at this time the extension section 24 is pushed out of the housing 10, and the extension length can fully show the open slot 25.

[0039] The second connection end 30 includes a fixed section 31 and a clamping end 32 that are connected in sequence. The fixed section 31 is fixedly connected to the cord chain, and the clamping end 32 includes a head and a neck, which slides into the opening slot 25 through the neck and is locked.

[0040] A self - rebounding lock core buckle according to the present utility model is suitable for the cylindrical form used in necklaces, bracelets or hand ropes. The lock core buckle of the lock can be pushed and pulled without precise alignment, and combined with a self - reset design, it can self - reset after a single push. The structure is simple and easy to use.

[0041] As described above, it is only a preferred embodiment of the present utility model, and there is no limitation in any form to the present utility model. Although the present utility model is disclosed as above with a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art, within the scope of the technical solution of the present utility model, when making some changes or modifications using the above - disclosed technical content into equivalent embodiments of equivalent changes, but as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technical meaning of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A self-rebounding lock cylinder buckle, comprising a housing, a first connecting end and a second connecting end, wherein the first connecting end and the second connecting end are respectively fixedly assembled on two ends of a rope chain to be connected, characterized in that: The first connection end presses the compression spring and is inserted into the shell. The first connection end is provided with a limit hole, and a limit pin passes through the limit hole from the shell to movably limit the first connection end and assemble it in the shell. The end of the first connection end facing the second connection end is provided with an open slot, and the second connection end has a card end suitable for being inserted into the open slot.

2. The self-rebounding lock cylinder buckle according to claim 1, characterized in that: A portion of the first connection end is inserted into the shell, and a compression spring is sleeved around the portion of the first connection end inserted into the shell. The first connection end is pushed in the direction of the compression spring, and the opening slot of the first connection end extends out of the shell.

3. The self-rebounding lock cylinder buckle according to claim 2, characterized in that: The first connecting end integrally comprises a tail section, an axial limiting section, a radial limiting section and a protruding section, and the sections are coaxially connected in sequence to form the first connecting end.

4. The self-rebounding lock cylinder buckle according to claim 3, characterized in that: The tail section is the part fixed to the rope chain, and the tail section is connected to the axial limiting section. The axial limiting section is the section with the largest aperture, and its outer diameter is larger than the inner diameter of the outer shell. The axial limiting section is an axial limiting structure for the maximum withdrawal displacement of the outer shell.

5. The self-rebounding lock cylinder buckle according to claim 4, characterized in that: The axial limiting section is connected to the radial limiting section through a transition section. The outer diameter of the radial limiting section is clearance-matched with the inner diameter of the shell. Limiting holes are provided on the outer circumferential surface of the axial limiting section. The limiting holes are distributed axially on the outer circumferential surface.

6. The self-rebounding lock cylinder buckle according to claim 5, characterized in that: The extending section is directly connected to the axial limiting section, and the aperture of the extending section is smaller than the aperture of the axial limiting section, and the axial diameter difference between the two constitutes a step surface that presses the spring.

7. The self-rebounding lock cylinder buckle according to claim 6, characterized in that: The aperture of the extending section is smaller than the inner diameter of the spring, while the aperture of the axial limiting section is larger than the outer diameter of the spring.

8. The self-rebounding lock cylinder buckle according to claim 6, characterized in that: An open slot is provided on the extended section, and the entire length of the open slot plus the distance from the end surface is less than the length of the limiting hole.

9. The self-rebounding lock cylinder buckle according to claim 8, characterized in that: The second connecting end includes a fixed section and a card end which are connected in sequence, wherein the fixed section is fixedly connected to the rope chain, and the card end includes an end head and a neck, and slides into the open card slot through the neck and is locked.

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