Patent Application
20170280836
The present invention relates to a jewelry lock catch, particularly to a switchable buckle jewelry lock catch, which is a preferred lock catch widely applied to pearl, jade and other bead chain jewelry; leather rope, rubber rope and other rope chain jewelry; and metal, gem and other chain jewelry.
With the growth in the living standard d of people, the demands of women for jewelry products are continuously increased, and the consumption demands for jewelry chains are diversified, personalized and graded. In China, the styles of these jewelry are continuously updated in recent years, and the qualities thereof are continuously improved. However, lock catches of these jewelry are single in variety and obsolete in style, which are in sharp contrast to various varieties and styles of jewelry lock catches of the European and American developed countries, thereby being not beneficial to improving the grades of jewelry of China. For the traditional jewelry chain lock catches, most lock catches are spring leaf lock catches and spring lock catches, but these lock catches have the disadvantages of less style, lack of molding change, asymmetrical lock catch body shapes, and gradual decrease or loss of elasticity and occasionally have the situations where spring leaves are broken and the like. In addition, a magnetic lock catch in the prior art is easily opened by chance, and is opened under the action of small external force, so that jewelry is lost if not careful, causing unnecessary loss. Thus, the safety is very worrying. There is much inconvenience in using a threaded lock catch, the lock catch is small in volume, and threads at both ends are not easily butt-jointed while in use, thereby consuming labor and consuming time, so that a wearer cannot wear the jewelry for a long time and then her mood is affected.
Aiming at the above-mentioned problem existing in the prior art, the present invention provides a switchable buckle jewelry lock catch, which can solve the problems of low firmness, single style, inconvenient wear and the like, and has the advantages of long service life and excellent decorativeness.
The present invention has the following technical solution:
The lock catch comprises a lock catch body, a buckle sleeve and a buckle, wherein one end of the buckle sleeve is provided with a buckle sleeve matching surface, the other end of the buckle sleeve is provided with a buckle inlet, and an internal wall of the buckle sleeve is provided with lock pins; an external surface of the buckle is provided with clamping grooves, a spring chamber is provided inside the buckle, and a spring is provided in the spring chamber; and a thimble of the spring is provided at one end of the buckle, and a connecting mechanism of a jewelry chain is provided at the other end of the buckle.
Both ends of the lock catch body are respectively provided with a through hole, and the buckle sleeve is provided in the through hole.
Each of the buckle sleeve and the buckle is of a cylindrical structure, and the external diameter of the buckle is less than the internal opening diameter of the buckle sleeve and is greater than the straight-line distance between two lock pins.
The buckle sleeve matching surface is provided with a buckle sleeve hole, and the size of the buckle sleeve hole is less than that of the thimble of the spring.
The lock pins are protruded from the internal wall of the buckle sleeve and are symmetrically provided at both sides of the internal wall.
The clamping grooves are U-shaped clamping grooves, each U-shaped clamping groove is of a groove structure, the U-shaped clamping grooves are symmetrically distributed at both sides of the buckle, and the straight-line distance between groove bottoms of the two U-shaped clamping grooves is less than that between the two lock pins. The width of the U-shaped clamping groove matches the diameter of the lock pin.
The U-shaped clamping groove is formed by communicating a long open end, a short closed end and a cambered surface travel groove, the long open end is of an open structure at one side of the buckle, the short closed end is of a closed structure on the buckle, and the long open end of the U-shaped clamping groove is communicated with the short closed end by the cambered surface travel groove.
A lug boss and a lug boss corner are respectively provided at both ends of the spring chamber; one side of the lug boss is connected to the thimble of the spring, and the other side of the lug boss is provided with a spring seat matching the spring.
The connecting mechanism is that: the lug boss corner is connected to a bead needle, and the bead needle is provided with a threading hole.
The connecting mechanism is that: the lug boss corner is connected to a chain bushing, and a cavity is provided in the chain bushing.
The present invention has the following advantages and effects:
1. The buckle sleeve is provided in the through hole of the lock catch body, the shape of the lock catch body may be varied, and the surface pattern may be designed at random; the lock catch body may be hollowly designed, thereby suitable for any metal and precious metal material. A consumer can replace the main lock catch body at random so long as she reserves the buckle sleeve while in use, and there is no need to destroy the bead chain connection, thereby making same have various styles.
2. If the lock catch is connected and used, when buckle is inserted in the buckle sleeve through the buckle inlet, the lock pin is required to be aligned with the long open end of the U-shaped clamping groove, the buckle and the buckle sleeve oppositely move under hand push, and the lock pin moves to the position connected to the cambered surface travel groove from the groove at the long open end of the U-shaped clamping groove. At this moment, the thimble of the spring comes into contact with the buckle sleeve matching surface, and compresses the spring under hand pressure. At this moment, the buckle clockwise rotates, and the lock pin slides to the position connected to the short closed end of the U-shaped clamping groove along the groove of the cambered surface travel groove. The handheld end of the buckle is released, and then the spring acts to push the lug boss connected to the thimble of the spring, so that the lock pin is locked in the groove at the short closed end, on the contrary, the lock catch may be opened by an operation.
3. According to the present invention, when a bead-shaped jewelry chain is connected, the thin end of the bead needle may be inserted in the threading hole of the bead and may be adhered by adhesive. The beading thread may pass through the threading hole to connect other beads, to play a role of connecting the whole bead chain.
4. According to the present invention, when a chain-shaped or a leather thread-shaped jewelry chain is connected, the buckle is connected to the chain bushing, and the leather rope, the metal chain and other jewelry chains may be connected in the cavity. Thus, various uses of the buckle type lock catch are realized.
To sum up, the present invention effectively combines firmness with beautiful appearance, and obtains unexpected technical effects, i.e. firmer and safer, thereby expanding the application range and being more suitable to be used in combination with precious jewelry. The style is fashionable, and the service life is long, which are taken as double insurance. Meanwhile, the present invention has decorativeness and artistry, thereby improving the competitive advantage of the product.
1. lock catch body; 2. through hole; 3. buckle sleeve; 4. buckle; 5. external edge of buckle sleeve; 6. lock pin; 7. buckle inlet; 8. buckle sleeve matching surface; 9. U-shaped clamping groove; 10. thimble of the spring; 11. lug boss; 12. spring; 13. spring seat; 14. bead needle; 15. lug boss corner; 16. threading hole; 17. spring chamber; 18. cavity; 19 chain bushing; 20. buckle sleeve hole; 21. long open end; 22. short closed end; 23 cambered surface travel groove.
The content the present invention will be further described in detail through specific embodiments in combination with the figures.
As shown in
As shown in
If the buckle type lock catch is connected and used, when the buckle 4 is inserted in the buckle sleeve 3 through the buckle inlet 7, the lock pin 6 is required to be aligned with the long open end 21 of the U-shaped clamping groove 9, the buckle 4 and the buckle sleeve 3 oppositely move under hand push, and the lock pin 6 moves to the position connected to the cambered surface travel groove 23 from the groove at the long open end 21 of the U-shaped clamping groove 9. At this moment, the thimble 10 of the spring comes into contact with the buckle sleeve matching surface 8, and compresses the spring 12 under hand pressure. At this moment, the buckle 4 clockwise rotates, and the lock pin 6 slides to the position connected to the short closed end 22 of the U-shaped clamping groove 9 along the groove of the cambered surface travel groove 23. The handheld end of the buckle 4 is released, and then the spring 12 acts to push the lug boss 11 connected to the thimble of the spring 12, so that the lock pin 6 is locked in the groove at the short closed end 22, on the contrary, the lock catch may be opened by an operation.
The above describes preferred embodiments and used technical principles of the present invention. Any equivalent transformation made on the basis of the technical solution of the present invention shall belong to the protection scope of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201410783203.2 | Dec 2014 | CN | national |
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/CN2015/000699 | Oct 2015 | US |
| Child | 15626108 | US |
