Lock catch assembly structure suitable for jewelry

Abstract

A lock catch assembly structure suitable for jewelry is adapted to two ends of a jewelry body or two ends of a jewelry rope chain, and is characterized in that the lock catch assembly structure comprises a lock catch main body, a bolt head and a lock cylinder body, one end face of the lock catch main body is provided with a slot for the bolt head to insert, and a lock cylinder body accommodating position is arranged in the direction perpendicular to the slot; a lock cylinder body is arranged in the lock cylinder body, and a movable lock tongue is arranged in the lock cylinder body to buckle a plug pin head inserted into the insertion groove. The lock catch assembly structure suitable for the jewelry is applied to a precious jewelry rope chain or a ring and is specially designed, on the basis of a precise matching structure and simple operation, the safety and reliability of connection and fastening are ensured, the quality and the use experience of a product are improved, meanwhile, the lock catch part is used as a single accessory, and the cost is reduced. Products can be upgraded and exchanged, and the added value of the products is improved.

Description

TECHNICAL FIELD

[0002] The utility model relates to the technical field of jewelry and accessories, especially to the technical field of cooperating lock catch used for connecting jewelry rope chains. BACKGROUND

[0004] With the continuous improvement of living standards, people's pursuit of jewelry products is also increasingly enthusiastic, and the category and aesthetic requirements of jewelry are also increasingly diversified. Necklace, bracelet and earring are among the most common jewelry pieces, which are always loved by consumers of all levels and all ages, and become a major consumer product.

[0005] For hand rope, bracelet and necklace, there are fixed connection structure styles that cannot be disassembled as a whole, and there are styles that are opened and closed to complete wearing through movable lock catches. The earliest lobster clasp connection method, and with the development of precision hardware processing or precious metal processing technology, various different forms of lock catch structures have gradually appeared, such as plug-in buckles, rotating lock buckles, and press-in buckles, etc. Different structures and matching methods of connecting devices. Considering the current technical process requirements, the structure used on jewelry needs to be small in size and high in reliability, so the structure design is relatively difficult. Moreover, since the lock catch used in jewelry is a high-frequency opening and closing accessory, there are many related requirements for its fatigue limit and whether it is easy to wear.

[0006] The common lock catch on the market has a simple structure, such as a buckle structure. Repeatedly buckling and opening will cause the buckle position to loosen, which may unintentionally fall off. There is also a magnetic type buckle, which may be unintentionally hooked in life and cause the adsorption part to be opened by external force. There is still a problem of insufficient safety factor. For example, patent CN202111370208.9 T-shaped wedge spring button jewelry buckle discloses that the utility model adopts a T-shaped wedge structure to limit the button, making the button move up and down more smoothly and not causing the button to shake. Whether to lock is controlled by an elastic component, which is prone to elastic fatigue and aging failure. For example, patent CN201910130218.1 jewelry buckle structure and jewelry production process discloses a magnetic structure, which is locked by the mutual attraction of the first magnet and the second magnet. The problem is that the magnetic attraction is easy to demagnetize, and it is easy to be opened by mistake, so its reliability requirement cannot completely achieve the expected effect.

[0007] In addition, the conventional lock catch structure is fastened and fixed to the jewelry piece, which is not convenient to replace and change if it is worn and aged. The fixed end is generally not suitable for adaptability and universality.

[0008] There is an urgent need to propose a locking structure that comprehensively improves the reliability and security of product connections. At the same time, the connection structure of the locking mechanism needs to be further improved in terms of precision to ensure accurate fit and stable and safe opening and closing. It is also necessary to consider its interoperability and universality to facilitate interchangeability, upgrades and replacements, and improve the user experience. [Summary of the Invention]

[0010] This utility model addresses existing problems by proposing a locking assembly structure suitable for jewelry cord chains. It is designed for precious jewelry cord chains or rings, and through a precise matching structure, it ensures the safety and reliability of the connection and fastening while being simple to operate, thereby improving product quality and user experience. At the same time, the locking part is treated as a single component, which can be used for product upgrades and interchangeability, thereby increasing its added value.

[0011] An assembly structure is adapted to both ends of a jewelry body or both ends of a jewelry cord chain. The clasp assembly structure includes a clasp body, a pin head, and a lock cylinder body. One end face of the clasp body is provided with a slot for inserting the pin head, and a lock cylinder body receiving position is provided in the direction perpendicular to the slot. The lock cylinder body is provided therein, and a movable locking tongue is provided in the lock cylinder body to hold the pin head inserted into the slot.

[0012] The lock cylinder body includes a lock cylinder outer shell, a rotating shaft, a rotating shaft sleeve, a transmission assembly, an eccentric wheel shaft, an eccentric wheel shaft assembly, a bolt, and an outer shell cover. The outer shell cover and the lock cylinder outer shell are fastened together. One end of the rotating shaft extends outside the lock cylinder outer shell. The portion of the rotating shaft inserted into the lock cylinder outer shell is movably assembled with the rotating shaft sleeve. The transmission assembly is sequentially assembled on the rotating shaft sleeve. The transmission assembly is sleeved on the eccentric wheel shaft and drives the eccentric wheel shaft. The eccentric wheel shaft and the eccentric wheel shaft assembly drive the bolt, and the bolt corresponds to the bolt slot on the lock cylinder outer shell. The bolt is driven to switch between extending out of the bolt slot and retracting into the bolt slot.

[0013] The end of the rotating shaft is also provided with a handle, which has anti-slip protrusions, and the radius of the handle is larger than the shaft diameter of the rotating shaft and larger than the diameter of the rotating shaft hole on the lock cylinder housing.

[0014] Two positioning plates are provided on the rotating shaft, namely a first positioning plate and a second positioning plate. The first / second positioning plate is pressed into the positioning plate groove on the rotating shaft by a spring, and the rotating shaft is fixed in the rotating shaft sleeve by the first / second positioning plate. The inner wall of the rotating shaft sleeve is provided with a first positioning slot and a second positioning slot. The first positioning slot corresponds to the first positioning plate, and the second positioning slot corresponds to the second positioning plate.

[0015] A longitudinal limiting sliding groove is further arranged on the inner wall of the rotating shaft sleeve, and a fixed-point protruding column is arranged on the rotating shaft, when the fixed-point protruding column is clamped in the longitudinal limiting sliding groove, the rotating shaft sleeve limits the rotating freedom degree of the rotating shaft in the circumferential direction, when the rotating shaft is pushed to the position closest to the rotating shaft sleeve, the fixed-point protruding column is pushed out of the longitudinal limiting sliding groove, and then the rotating shaft has 360° rotating freedom degree in the circumferential direction.

[0016] When the rotating shaft is located at the position farthest from the rotating shaft sleeve, the transmission assembly and the eccentric shaft are separated from each other and do not contact each other, when the rotating shaft is pushed to the position closest to the rotating shaft sleeve, the transmission assembly and the eccentric shaft are clamped into the transmission assembly state.

[0017] One end of the transmission assembly is connected with the transmission shaft sleeve, the other end has a transmission assembly structure, the eccentric shaft has a wedge end, and the wedge end of the eccentric shaft is clamped into the transmission assembly structure, so that the eccentric shaft is driven by the transmission assembly.

[0018] The transmission assembly structure is a plum blossom inner ring, a hexagonal inner ring or a rectangular inner ring, and the wedge end of the eccentric shaft is a plum blossom handle, a hexagonal handle or a rectangular handle.

[0019] The lock tongue is connected by a fixed pin, and the lock tongue is fixedly connected in the middle of the clamping end through the fixed pin.

[0020] The precise lock assembly structure of the utility model is applied to valuable jewelry rope chains or rings and is specially designed, through the precise matching structure, the safety and reliability of the connection buckle are ensured on the basis of simple operation, the quality and use experience of the product are improved, the lock buckle part is used as a single accessory, product upgrading and interchanging can be carried out, and the added value is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the whole structure schematic diagram of the bracelet in the embodiment 1 of the utility model;

[0023] Figure 2 is another angle schematic diagram of the bracelet in the embodiment 1 of the utility model;

[0024] Figure 3 is the lock cylinder body split structure schematic diagram of the lock assembly structure of the utility model;

[0025] Figure 4 is the lock cylinder body structure sectional view of the lock assembly of the utility model;

[0026] Figure 5 is the structure schematic diagram of the embodiment 2 of the utility model;

[0027] Wherein:

[0028] 100, lock body; 101, slot; 102, lock body accommodating position;

[0029] 200, bolt head;

[0030] 300, lock body;

[0031] 10, lock core shell; 20, shell cover; 30, rotating shaft; 31, handle; 311, anti-skid protrusion; 31, positioning piece; 33, spring; 34, positioning piece slot; 35, positioning protrusion; 40, rotating shaft sleeve; 41, longitudinal limiting sliding groove; 50, transmission assembly; 60, eccentric shaft; 70, eccentric shaft sleeve; 71, fixing pin; 80, lock tongue; 81, lock tongue notch;

[0032] 100', independent lock body; 400, adapter head; 500, fixing pin.

DETAILED DESCRIPTION

[0034] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like 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, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features.

[0035] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. In addition, the term "includes" and any variations thereof are intended to cover non-exclusive inclusion.

[0036] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0037] Example 1:

[0038] Please refer to the attached drawings Figure 1 Wherein the bracelet applied with the lock assembly structure is shown, which can be arranged between the two connecting ends of the rope chain or the two connecting ends of the bracelet ring, to complete the action of locking and opening. In this embodiment, the specific form of the lock assembly structure perfectly integrated in the bracelet is embodied.

[0039] The lock assembly structure includes a lock body 100, a latch head 200 and a lock cylinder 300, the lock body 100 is used to accommodate the lock cylinder 300, and the latch head 200 is matched, if the lock assembly structure is applied to the bracelet, the lock body 100 is designed to be integrated with the bracelet body. That is, the lock body 100 is integrally formed in the bracelet body.

[0040] And the lock cylinder 300 is arranged on the lock body 100, and the latch head 200 is arranged at the other end that needs to be connected. One end of the lock body is provided with a slot 101 for inserting the latch head 200, and a lock cylinder accommodating position 102 is arranged vertically to the slot 101, and the lock cylinder 300 is arranged in the lock cylinder accommodating position 102.

[0041] Please refer to the attached drawings Figure 2 Wherein the structure of the lock cylinder 300 is shown in detail, the lock cylinder 300 includes a lock cylinder shell 10, a rotating shaft 30, a rotating shaft sleeve 40, a transmission assembly 50, an eccentric shaft 60, an eccentric shaft sleeve 70, a lock tongue 80, and a shell cover 20, wherein the shell cover 20 and the lock cylinder shell 10 are buckled and assembled into an integral whole accommodating all transmission components.

[0042] The rotating shaft 30 is arranged outside the lock cylinder shell 10 at one end, and the part of the rotating shaft arranged outside the lock cylinder shell 10 also needs to be arranged outside the lock body 100, which is a component that can be operated by hand. The part of the rotating shaft 30 inserted into the lock cylinder shell 10 is movably assembled with the rotating shaft sleeve 40, the transmission assembly 50 is sequentially assembled on the rotating shaft sleeve 40, the transmission assembly 50 is sleeved on the eccentric shaft 60 and drives the eccentric shaft 60, the eccentric shaft 60 drives the lock tongue 80 through the eccentric shaft sleeve 70, and the lock tongue 80 corresponds to the lock tongue slot 81 on the lock cylinder shell, and the lock tongue 80 is driven to switch between extending out of the lock tongue slot and retracting into the lock tongue slot.

[0043] Please refer to the attached drawings Figure 3 Wherein the end of the rotating shaft 30 is also provided with a rotating handle 31, the rotating handle 31 has an anti-slip protrusion 311, and the radius of the rotating handle 31 is greater than the shaft diameter of the rotating shaft 30 and the hole diameter of the rotating shaft hole on the lock cylinder shell 10.

[0044] Two positioning pieces 32 are provided on the rotating shaft 30, namely a first positioning piece and a second positioning piece. The first / second positioning piece is pressed into the positioning piece groove 34 on the rotating shaft 30 by a spring 33. The rotating shaft 30 is fixed in the rotating shaft sleeve 40 by the first / second positioning piece 32. The inner wall of the rotating shaft sleeve 40 is provided with a first positioning groove and a second positioning groove. The first positioning groove corresponds to the first positioning piece, and the second positioning groove corresponds to the second positioning piece.

[0045] A longitudinal limiting groove 41 is also provided on the inner wall of the rotating shaft sleeve 40, and a fixed protrusion 35 is provided on the rotating shaft. When the positioning protrusion 35 is engaged in the longitudinal limiting groove 41, the rotating shaft sleeve 40 limits the circumferential rotational freedom of the rotating shaft 30. When the rotating shaft 30 is pushed closer to the rotating shaft sleeve 40, the positioning protrusion 35 is pushed out of the longitudinal limiting groove 41, and then the rotating shaft 30 has 360° rotational freedom in the circumferential direction. That is, the rotation of the rotating shaft 30 is limited by the longitudinal limiting groove 41 on the inner wall of the rotating shaft sleeve 40, but the positioning protrusion 35 can be released from the limitation of the longitudinal limiting groove 41 by pushing the rotating shaft 30 inward, thus gaining rotational freedom.

[0046] Moreover, once the rotating shaft 30 has rotational freedom, the transmission component 50 can be matched with the eccentric wheel shaft 60; otherwise, the two are separate and do not contact each other.

[0047] As attached Figure 4 As shown, when the rotating shaft 30 is at the position furthest from the rotating shaft housing 40, the transmission assembly 50 and the eccentric wheel shaft 60 are disengaged and do not contact each other. When the rotating shaft 30 is pushed to the position closest to the rotating shaft housing 40, the transmission assembly 50 and the eccentric wheel shaft 60 engage and enter the transmission assembly state.

[0048] One end of the transmission component 50 is connected to the transmission shaft housing 40, and the other end has a transmission assembly structure. The corresponding eccentric wheel shaft 60 has a wedge end. The wedge end of the eccentric wheel shaft 60 is engaged in the transmission assembly structure, and the eccentric wheel shaft 60 is driven by the transmission component 50.

[0049] In practical industrial applications, there are many types of transmission assembly structures, such as splines. A variant of the transmission assembly structure is shown here, as attached. Figure 3 The diagram illustrates that the transmission assembly structure of the transmission component is a perforated inner ring, while the corresponding wedge end of the eccentric wheel shaft is a perforated handle. Depending on the requirements, the transmission assembly structure of the transmission component can also be designed as a hexagonal or rectangular inner ring, with the wedge end of the eccentric wheel being a hexagonal or rectangular handle.

[0050] The eccentric shaft sleeve 70 is connected with the lock tongue 80 through the fixing pin 71, and a clamping end 72 is arranged on the side of the eccentric shaft sleeve 70 close to the lock tongue, the fixing pin 71 is clamped in the middle of the clamping end 72, and the lock tongue 80 is fixedly connected in the middle of the clamping end 72 through the fixing pin 71.

[0051] Embodiment 2:

[0052] Please refer to the attached Figure 5 The embodiment differs from the embodiment 1 in that, in the embodiment, the lock assembly structure is used as the two ends of the rope chain, so that a complete independent lock body 100' is provided, the same pin head 200 and the lock core body 300 as in the embodiment 1, and in addition, an adapter head 400 is provided and needs to be connected to the end of the rope chain, one end of the adapter head is fixedly assembled to the end of the rope chain, and the other end is fixedly connected in the independent lock body 100' through the fixing pin 500. Of course, there are various possibilities for assembling the adapter head 400 to the independent lock body 100', as long as the rotatable assembly mode can be realized, the adapter head 400 is clamped in the independent lock body 100' and cannot be loosened, but can be freely rotated.

[0053] The assembly structure of the jewelry is suitable for valuable jewelry rope chains or rings, and is specially designed. Through the precise matching structure, the safety and reliability of the connection buckle are ensured on the basis of simple operation, the quality and use experience of the product are improved, the lock part is used as a single accessory, product upgrading and interchanging can be carried out, and the added value is improved.

[0054] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as above, it is not used to limit the utility model. Any skilled person in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the utility model, and equivalent embodiments with equivalent changes are obtained. Any simple modification, equivalent change and modification of the above embodiment within the scope of the technical solution of the utility model are all within the scope of the technical solution of the utility model.

Claims

1. A clasp assembly structure suitable for jewelry, said assembly structure being adapted to both ends of the jewelry body or both ends of the jewelry cord, characterized in that, The latch assembly structure includes a latch body, a pin head, and a lock cylinder body. One end face of the latch body is provided with a slot for inserting the pin head, and a lock cylinder body receiving position is provided perpendicular to the slot, in which the lock cylinder body is housed. The lock cylinder body has a movable latch tongue that engages with the pin head inserted into the slot.

2. The clasp assembly structure applicable to jewelry according to claim 1, characterized in that, The lock cylinder body includes a lock cylinder outer shell, a rotating shaft, a rotating shaft sleeve, a transmission assembly, an eccentric wheel shaft, an eccentric wheel shaft assembly, a bolt, and an outer shell cover. The outer shell cover and the lock cylinder outer shell are fastened together. One end of the rotating shaft extends outside the lock cylinder outer shell. The portion of the rotating shaft inserted into the lock cylinder outer shell is movably assembled with the rotating shaft sleeve. The transmission assembly is sequentially assembled on the rotating shaft sleeve. The transmission assembly is sleeved on the eccentric wheel shaft and drives the eccentric wheel shaft. The eccentric wheel shaft and the eccentric wheel shaft assembly drive the bolt, and the bolt corresponds to the bolt slot on the lock cylinder outer shell. The bolt is driven to switch between extending out of the bolt slot and retracting into the bolt slot.

3. The clasp assembly structure applicable to jewelry according to claim 2, characterized in that, The end of the rotating shaft is also provided with a handle, which has anti-slip protrusions, and the radius of the handle is larger than the shaft diameter of the rotating shaft and larger than the diameter of the rotating shaft hole on the lock cylinder housing.

4. The clasp assembly structure applicable to jewelry according to claim 3, characterized in that, Two positioning plates are provided on the rotating shaft, namely a first positioning plate and a second positioning plate. The first / second positioning plate is pressed into the positioning plate groove on the rotating shaft by a spring, and the rotating shaft is fixed in the rotating shaft sleeve by the first / second positioning plate. The inner wall of the rotating shaft sleeve is provided with a first positioning slot and a second positioning slot. The first positioning slot corresponds to the first positioning plate, and the second positioning slot corresponds to the second positioning plate.

5. The clasp assembly structure applicable to jewelry according to claim 4, characterized in that, A longitudinal limiting groove is provided on the inner wall of the rotating shaft sleeve, and a fixed protrusion is provided on the corresponding rotating shaft. When the positioning protrusion is stuck in the longitudinal limiting groove, the rotating shaft sleeve limits the circumferential rotational freedom of the rotating shaft. When the rotating shaft is pushed towards the rotating shaft sleeve, the positioning protrusion is pushed out of the longitudinal limiting groove, and then the rotating shaft has 360° rotational freedom in the circumferential direction.

6. The clasp assembly structure applicable to jewelry according to claim 5, characterized in that, When the rotating shaft is at its furthest position from the rotating shaft housing, the transmission assembly and the eccentric wheel shaft are disengaged and do not contact each other. When the rotating shaft is pushed to its closest position to the rotating shaft housing, the transmission assembly and the eccentric wheel shaft engage and enter the transmission assembly state.

7. The clasp assembly structure applicable to jewelry according to claim 2, characterized in that, One end of the transmission component is connected to the transmission shaft housing, and the other end has a transmission assembly structure. The corresponding eccentric wheel shaft has a wedge end. The wedge end of the eccentric wheel shaft is engaged in the transmission assembly structure, and the eccentric wheel shaft is driven by the transmission component.

8. The clasp assembly structure applicable to jewelry according to claim 7, characterized in that, The transmission assembly structure of the transmission component is a plum blossom inner ring, a hexagonal inner ring, or a rectangular inner ring, while the wedge end of the eccentric wheel shaft is a plum blossom handle, a hexagonal handle, or a rectangular handle.

9. The clasp assembly structure applicable to jewelry according to claim 7, characterized in that, The eccentric wheel axle assembly is connected to the locking tongue by a fixing pin. A locking end is provided on the side of the eccentric wheel axle assembly near the locking tongue. A fixing pin is inserted into the middle of the locking end, and the locking tongue is fixedly connected to the middle of the locking end by the fixing pin.

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