Buckle connecting device for jewelry

Abstract

A buckle connecting device for jewelry comprises a middle shaft body and locking end cover pieces arranged on the two sides of the middle shaft body in a matched mode, the two expanded sides of the middle section of the middle shaft body extend to form streamline-shaped locking protruding columns, the locking protruding columns on the two corresponding sides are each provided with one locking end cover piece, and the ends, facing the locking protruding columns, of the locking end cover pieces are provided with inner holes. The other end is a fixed end connected with a jewelry chain; and the locking convex column of the middle shaft body is inserted into an inner hole of the locking end cover piece and is connected with the locking end cover piece through a movable connecting structure. According to the buckle connecting device, the locking convex columns are designed at the two ends of the middle shaft body, the locking convex columns and the locking end cover pieces at the two ends are assembled in a matched mode, the two ends of a jewelry rope chain are movably opened and locked, and the buckle connecting device is provided with the rotary buckle piece, so that the buckle connecting device can be automatically aligned after a structure is inserted. The sliding-in locking structure achieves pushing locking through the elastic force of a spring, the structural design is exquisite, the reliability is high, and the sliding-in locking structure is suitable for one-hand operation cooperation.

Description

Technical Field

[0001] The utility model relates to the technical field of jewelry connection buckle devices, in particular to a buckle connection device for rotary connection used to connect jewelry / hand ropes / necklaces.

Background Art

[0002] With the continuous improvement of living standards, people's enthusiasm for pursuing jewelry products is also increasing day by day, and the variety and aesthetic requirements for jewelry are becoming more and more diverse. Necklaces, bracelets, and earrings are among the most common types of jewelry pieces, and have always been loved by consumers of all levels and ages, becoming large-volume consumer products.

[0003] For ornaments such as hand ropes, bracelets, and necklaces, there are styles with an integrally non-detachable fixed connection structure, and there are also styles that are opened and closed through movable buckles to complete wearing. The oldest lobster buckle connection method, and with the development of precision hardware processing or precious metal processing technology, various different forms of buckle structures have gradually emerged, including plug-in buckles, rotary lock buckles, press-in plug buckles, etc. Different connection devices with structures and cooperation methods. However, because the structures used on jewelry need to be small in size and have high reliability requirements, the structural design is quite difficult. Moreover, since the buckles used on jewelry are high-frequency opening and closing accessories, there are also many related requirements for their fatigue limit and ease of wearing.

[0004] Therefore, some current products are prone to breakage, or have unreasonable designs. It is difficult for users to wear them with one hand by themselves, or the alignment structure is too small and it is not easy to align the product to complete the opening and closing process.

Summary of the Invention

[0005] The utility model proposes a rotary buckle connection device for jewelry in view of the existing problems. The buckle connection device can be self-aligned after the structure is inserted by assembling a rotary buckle part, and the sliding-in locking structure is pushed and locked by the elastic force of a spring. The structure is exquisitely designed and has high reliability, and is suitable for one-handed operation and cooperation.

[0006] A rotary buckle connection device for jewelry, the device includes a central shaft body and locking end cover parts fitted on both sides of the central shaft body. It is characterized in that a streamlined locking convex column extends from the middle part of the central shaft body which is enlarged on both sides. Corresponding to the locking convex columns on both sides, one locking end cover part is provided respectively. One end of the locking end cover part facing the locking convex column has an inner hole, and the other end is a fixed end for connecting a jewelry chain; the locking convex column of the central shaft body is inserted into the inner hole of the locking end cover part and is connected with the locking end cover part through a movable connection structure.

[0007] The movable connection structure is a magnetic connection structure, a threaded connection structure or a rotary clamping structure.

[0008] The rotation latching structure includes a compression spring, a gasket, a locking pin, and a slot provided on the locking stud. The locking stud switches the opening and closing of the structure through the limit fit between the slot and the locking pin.

[0009] In the inner hole of the locking end cover, a compression spring, a gasket, and two locking pins are arranged. The gasket presses against the compression spring and is set at the deepest part of the inner hole. The locking pin extends from the radial direction of the locking end cover and is on the inner hole wall to limit the gasket and the spring.

[0010] The slot includes a through-hole slot section, a blind-hole slot section, and a guiding slot connecting the through-hole slot and the blind-hole slot. When the locking stud presses against the gasket to compress the spring, the through-hole slot of the slot guides the locking pin to slide and rotates by an angle, and the locking pin is limited by the blind-hole slot, thereby switching the opening and locking of the rotation latching structure.

[0011] The through-hole slot and the blind-hole slot of the slot are parallel to the axis of the locking stud. Corresponding to the positions of the two locking pins, two slots are arranged in the circumferential direction of the locking stud.

[0012] The circumferential distance between the two locking pins in the latching structure is 180°. Then the circumferential distance between the corresponding two slots is also 180°. The through-hole slots and the blind-hole slots of the two slots are evenly distributed along the circumference of the locking stud, and the distance between each other is 90°.

[0013] The snap connection device involved in the present invention designs locking studs at both ends of the central shaft body, and matches and assembles with the locking end covers at both ends through the locking studs to realize the activity of opening and locking the two ends of the jewelry rope chain. And the snap connection device realizes the pushing and locking through the elastic force of the spring by assembling a rotary snap member. The structure design is delicate, with high reliability and suitable for single-handed operation and cooperation. It makes the consumer's use experience better and the wearing process simpler.

Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the snap connection device for jewelry involved in the present invention;

[0015] Figure 2 is the split structural schematic diagram of the snap connection device for jewelry involved in the present invention;

[0016] Figure 3 is the cross-sectional view of the snap connection device for jewelry involved in the present invention;

[0017] Among them:

[0018] 100. Snap connection device; 10. Central shaft body; 11. Locking stud; 20. Locking end cover member; 21. Inner hole; 22. Fixed end; 30. Rotating snap structure; 31. Compression spring; 32. Gasket; 33. Locking pin; 34. Card slot; 341. Through hole slot; 342. Blind hole slot; 343. Guide slot.

Detailed implementation manners

[0019] In the description of the present invention, 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 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 thus should not be construed as a limitation to the present invention. 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 specifying 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.

[0020] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, the term "comprising" and any variation thereof are intended to cover non-exclusive inclusion.

[0021] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" 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 invention can be understood according to specific circumstances.

[0022] The present invention will be further described below in conjunction with the drawings and preferred embodiments.

[0023] Please refer to the attached Figure 1 and the attached Figure 2 , which shows a snap connection device 100 for jewelry. The device includes a central shaft body 10 and locking end cover members 20 fitted on both sides of the central shaft body 10. The locking end cover members will be respectively assembled to both ends of the jewelry cord / chain, and the opening and closing actions during the wearing process are completed through the connection device 100.

[0024] Please refer to the attached Figure 2, wherein the middle section of the central shaft body 10 bulges and streamlined locking studs 11 extend from both sides. Corresponding to the locking studs 11 on both sides, a locking end cover member 20 is respectively provided. One end of the locking end cover member 20 facing the locking stud 11 has an inner hole 21, and the other end is a fixed end 22 for connecting the jewelry chain. The locking stud 11 of the central shaft body 10 is inserted into the inner hole 21 of the locking end cover member 20 and is connected to the locking end cover member 20 through a movable connection structure.

[0025] The movable connection structure is a magnetic attraction connection structure, a threaded connection structure or a rotary clamping structure 30. The above three methods are all movable connection methods suitable for jewelry that have been tested and demonstrated to be feasible in the applicant's actual product samples. The locking stud can be inserted into the inner hole and connected by magnetic attraction through the magnetic attraction connection structure, or tightened by mutually matching male and female threads.

[0026] Please refer to Appendix Figure 2 ~Appendix Figure 3 , and the following specifically describes the rotary clamping structure: The rotary clamping structure 30 includes a compression spring 31, a gasket 32, a locking pin 33 and a card slot 34 provided on the locking stud 11. The locking stud 11 switches the structure opening and closing through the limit cooperation between the card slot 34 and the locking pin 33.

[0027] In the inner hole 21 of the locking end cover member 20, a compression spring 31, a gasket 32 and two locking pins 33 are arranged. The gasket 32 presses the compression spring 31 and is arranged at the deepest part of the inner hole 21. The locking pin 33 extends from the radial direction of the locking end cover member 20 to the inner hole wall to limit the gasket 32 and the spring 31. The locking pin 33 can be machined and driven into the locking end cover member 20. Two locking pins 33 are inserted oppositely from the outside of the locking end cover member 20, and the depth of their penetration is precisely calculated and precisely matched with the position and depth of the card slot 34 for cooperation and locking.

[0028] In terms of the design structure, the card slot 34 includes a through hole slot 341, a blind hole slot 342, and a guide slot 343 connecting the through hole slot 341 and the blind hole slot 342. Actually, this card slot is an integrally connected overall structure, and it is artificially divided and distinguished functionally to represent the different functions of different segments.

[0029] The function of the through hole slot 341 is to guide and slide the locking pin 33 into the card slot 34 along the open through hole opening. When the locking stud and the locking end cover member rotate relative to each other, the guide slot 343 allows the locking pin 33 to be guided and slide to the blind hole slot 342 along the guide slot 343. Relying on the non-opening end characteristic of the blind hole slot 342, the locking pin 33 is clamped, and the locking process is realized.

[0030] When the locking stud 11 abuts against the gasket 32 to compress the spring 31, the through-hole groove 341 of the card slot 34 guides the locking pin 33 and rotates it by an angle, and the blind-hole groove 342 defines the locking pin 33, so as to switch the opening and locking of the rotary clamping structure.

[0031] The through-hole groove 341 and the blind-hole groove 342 of the card slot 34 are parallel to the axis of the locking stud 11. Corresponding to the positions of the two locking pins 33, two card slots are arranged in the circumferential direction of the locking stud 11.

[0032] The two locking pins 33 in the clamping structure 30 are 180° apart in the circumferential direction, so the corresponding two card slots 34 are also 180° apart. The through-hole grooves 341 and the blind-hole grooves 342 of the two card slots are evenly distributed along the circumference of the locking stud and are 90° apart from each other.

[0033] The snap connection device involved in the present utility model designs locking studs at both ends of the central shaft body, and matches and assembles with the locking end cover parts at both ends through the locking studs to realize the activity of opening and locking the two ends of the jewelry rope chain. Moreover, the snap connection device realizes the pushing and locking through the elastic force of the spring by assembling a rotary snap part. The structure is exquisitely designed, has high reliability, and is suitable for single-handed operation and cooperation. It enables a better user experience for consumers and a simpler wearing process. The overall structure has high safety, with a track restricting the path, and the process of taking out and inserting and locking can be completed by pressing and resetting through the compression spring.

[0034] The above is only a preferred embodiment of the present utility model, and it does not impose any form of limitation on the present utility model. Although the present utility model is disclosed 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, 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 concept of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A buckle connection device for jewelry, comprising a central axis and locking end covers fitted on both sides of the central axis, characterized in that: Streamlined locking bosses extend from both sides of the bulge in the middle section of the central axis, and a locking end cover is respectively provided corresponding to the locking bosses on both sides. The locking end cover has an inner hole at one end facing the locking boss, and the other end is a fixed end connected to the jewelry chain; the locking boss of the central axis is inserted into the inner hole of the locking end cover and is connected to the locking end cover through a movable connection structure.

2. The jewelry buckle connection device according to claim 1, characterized in that: The movable connection structure is a magnetic connection structure, a threaded connection structure or a rotating clamping structure.

3. The jewelry buckle connection device according to claim 2, characterized in that: The rotating clamping structure comprises a compression spring, a gasket, a locking pin and a clamping slot arranged on the locking boss. The locking boss performs structural opening and closing switching by the limiting cooperation between the clamping slot and the locking pin.

4. The jewelry buckle connection device according to claim 3, characterized in that: A compression spring, a gasket and two locking pins are arranged in the inner hole of the locking end cover, wherein the gasket presses the compression spring and is arranged at the deepest part of the inner hole, and the locking pin extends from the radial direction of the locking end cover to the inner hole wall, limiting the gasket and the spring.

5. The jewelry buckle connection device according to claim 4, characterized in that: The card slot includes a through hole slot, a blind hole slot, and a guide slot connecting the through hole slot and the blind hole slot. When the locking boss presses against the gasket compression spring, the locking pin is guided by the through hole slot of the card slot and rotated at an angle to limit the locking pin with the blind hole slot, thereby switching the opening and locking of the rotating card structure.

6. The jewelry buckle connection device according to claim 5, characterized in that: The through hole groove and the blind hole groove of the clamping groove are parallel to the axis of the locking protrusion, corresponding to the orientation of the two locking pins, and two clamping grooves are arranged in the circumferential direction of the locking protrusion.

7. The jewelry buckle connection device according to claim 6, characterized in that: The two locking pins in the clamping structure are 180° apart in circumference, and the two corresponding clamping grooves are also 180° apart. The through holes and blind holes of the two clamping grooves are evenly distributed along the circumference of the locking protrusion and are 90° apart from each other.

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