Rotary clamping lock catch
By designing the rotary clamping buckle, the combination of the rotary clamping fastener and spring, the existing jewelry clamping is easily broken and difficult to wear with one hand during high-frequency opening and closing, and a high-reliability and exquisitely designed lock structure is achieved.
Patent Information
- Application Number
- CN202422362573.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing jewelry lock structure is prone to break during high-frequency opening and closing, and the unreasonable design makes it difficult for users to wear one hand or align the structure to open and close.
A rotary latch buckle is designed, and the structure is assembled by assembling a rotary fastener to align itself after insertion. The sliding into the locking structure is driven by the spring force of the spring, which is suitable for one-hand operation.
It realizes the high reliability and exquisite design of the lock structure, is suitable for one-handed operation, and the wearing process is simpler, avoiding the problem of the lock being easily broken.
Smart Images
Figure CN223008566U_ABST
Abstract
Description
Technical Field
[0002] The utility model relates to the technical field of jewelry, in particular to the technical field of clasps used for connecting jewelry ropes and chains.
Background Art
[0004] With the continuous improvement of living standards, people's enthusiasm for pursuing jewelry products is also increasing day by day. The requirements for the categories and aesthetics of 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 major consumer products.
[0005] For ornaments such as bracelets, hand ropes, and necklaces, there are styles with an integral non-detachable fixed connection structure, as well as styles that can be opened and closed through a movable clasp to complete wearing. The earliest lobster clasp connection method, and with the development of precision hardware processing or precious metal processing technology, various different forms of clasp structures have gradually emerged, including plug-in clasps, rotary locking clasps, press-in plug clasps, etc. Different connection devices with different structures and cooperation methods. However, due to the small size of the structures used on jewelry and relatively high reliability requirements, the structural design is quite difficult. Moreover, since the clasps used on jewelry are high-frequency opening and closing accessories, there are also many related requirements for their fatigue limit and ease of wearing.
[0006] Therefore, some current products are prone to breakage, or the design is unreasonable. 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
[0008] The utility model proposes a rotary snap clasp for existing problems. The clasp structure can be disassembled and combined in a two-end manner or a single-end disassembly and combination manner to carry out the process of the movable snap switch. The rotary snap clasp is assembled with a rotary clasp member, so that the structure can be self-aligned after insertion. The sliding-in locking structure is realized by the elastic force of a spring to push and lock. The structure is exquisitely designed and has high reliability, suitable for one-handed operation and cooperation.
[0009] A rotary snap clasp, the clasp includes a main housing and two end connectors. The two end connectors are respectively used to connect the two ends of the rope chain and are assembled to the main housing in a fixed / movable manner. It is characterized in that there are two inner holes at both ends in the main housing, each inner hole corresponding to an end connector. At least one of the two end connectors is assembled into the main housing through a movable rotary snap structure. The movable rotary snap structure includes a spring, a pressing thin sheet, a locking pin, and a card slot. A locking pin is provided in the main housing, and at the same time, the spring is held by the pressing thin sheet in the inner hole within the locking pin. And an axletree inserted into the inner hole of the main housing is provided on the end connector, and a card slot is provided on the axletree, and the card slot rotates to switch to clamp the locking pin / to release the locking pin.
[0010] The two end connectors include a fixed end connector and a movable end connector. The fixed end connector is fixedly assembled into the inner hole of the main housing, and the movable end connector is assembled into the inner hole of the main housing through a movable rotary clamping structure.
[0011] The fixed end connector is inserted into the inner hole, and its axial displacement is limited by two locking pins in the hole, and it has a degree of rotational freedom.
[0012] The fixed end connector includes a clamping end, and there is a connecting neck between the clamping end and the main body of the fixed end connector. The two locking pins are stuck on the connecting neck to limit the fixed end connector.
[0013] Both of the two end connectors are assembled into the main housing through the movable rotary clamping structure, then both end connectors are provided with shaft heads, and the shaft heads are provided with card slots.
[0014] The movable rotary clamping structure includes a spring, a pressing thin sheet, a locking pin and a card slot. In the inner hole of the main housing, a spring, a pressing thin sheet and two locking pins are arranged. The pressing thin sheet presses the spring and is arranged at the deepest part of the inner hole. The locking pin extends from the radial direction of the inner hole to the inner hole wall to limit the pressing thin sheet and the spring.
[0015] The card slot includes a through-hole slot section, a blind-hole slot section, and a guide slot connecting the through-hole slot and the blind-hole slot. When the shaft head presses against the pressing thin sheet to compress the spring, the locking pin is guided and slid by the through-hole slot of the card slot and rotated by an angle to be limited by the blind-hole slot, so as to switch the opening and locking of the rotary clamping structure.
[0016] The through-hole slot and the blind-hole slot of the card slot are parallel to the axis of the shaft head, corresponding to the positions of the two locking pins. Two card slots are arranged in the circumferential direction of the shaft head.
[0017] The two locking pins in the movable rotary clamping structure are circumferentially spaced 180° apart, then the corresponding two card slots are also spaced 180° apart. The through-hole slots and blind-hole slots of the two card slots are evenly distributed along the circumference of the shaft head and are 90° apart from each other.
[0018] The rotary clamping lock involved in the present utility model connects the jewelry rope chain through the main housing and the end connector structures designed at both ends of the main housing, completes the locking and opening actions, realizes the movable opening and locking of both ends of the jewelry rope chain, and the rotary clamping structure allows the shaft head provided with the card slot to be self-positioned and inserted and then slid in to be aligned. The sliding-in locking structure is realized by the elastic force of the spring to push and lock. The structure design is delicate, the reliability is high, and it is suitable for single-handed operation and cooperation. It makes the consumer's use experience better and the wearing process simpler.
Description of the Drawings
[0020] Figure 1 It is a schematic diagram of the overall structure of Embodiment 1 of the rotary snap lock involved in the present utility model;
[0021] Figure 2 It is a schematic diagram of the disassembled structure of Embodiment 1 of the rotary snap lock involved in the present utility model;
[0022] Figure 3 It is a cross-sectional view of Embodiment 1 of the rotary snap lock involved in the present utility model;
[0023] Figure 4 It is a schematic diagram of the disassembled structure of Embodiment 2 of the rotary snap lock involved in the present utility model;
[0024] Figure 5 It is a cross-sectional view of Embodiment 2 of the rotary snap lock involved in the present utility model;
[0025] Wherein:
[0026] 100, rotary snap lock; 10, main housing; 11, inner hole; 20, end connector; 20a, fixed end connector; 20b, movable end connector; 21, shaft head; 22, clamping end; 23, connecting neck; 30, rotary snap structure; 31, spring; 32, pressing thin sheet; 33, locking pin; 34, card slot; 341, through-hole slot; 342, blind-hole slot; 343, guide slot.
Detailed implementation manners
[0028] 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 number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.
[0029] 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.
[0030] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, 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 a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. 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 circumstances.
[0031] The present utility model will be further described below in conjunction with the accompanying drawings and preferred embodiments.
[0032] Embodiment 1:
[0033] Please refer to the attached Figure 1 and the attached Figure 2 , which shows a rotary snap lock 100, including a main housing 10 and end connectors 20 fitted on both sides of the main housing 10. The end connectors 20 will be respectively assembled to both ends of the jewelry cord / chain, and the opening and closing actions of the wearing process are completed through the rotary snap lock 100.
[0034] A rotary snap lock 100, the lock includes a main housing 10 and two end connectors 20, wherein the two end connectors 20 are respectively used to connect both ends of the cord chain and are assembled to the main housing in a fixed / removable manner. There are two inner holes 11 at both ends inside the main housing 10, each inner hole 11 corresponding to one end connector 20. At least one of the two end connectors 20 is assembled into the main housing 10 through a movable rotary snap structure. The movable rotary snap structure 30 includes a spring 31, a tightening thin plate 32, a locking pin 33, and a card slot 34. A locking pin 33 is provided inside the main housing 10, and at the same time, the spring 31 is clamped by the tightening thin plate 32 in the inner hole 11 within the locking pin 33. And a shaft head 21 inserted into the inner hole 11 of the main housing 10 is provided on the end connector 20, and a card slot 34 is provided on the shaft head 21, and the card slot 34 rotates to switch to clamp the locking pin / to release the locking pin.
[0035] The two end connectors 20 have two different design forms. The first design form is that both ends are movably opened and locked relative to the main housing 10, and the second design form is that one end is fixed and the other end is movable.
[0036] Please refer to the attached Figure 1 ~the attached Figure 3 , which shows the specific structure of Embodiment 1. The two end connectors 20 are both assembled into the inner holes 11 of the main housing 10 through the movable rotary snap structure 30. Then, shaft heads 21 are provided on both end connectors 20, and card slots 34 are provided on the shaft heads 21.
[0037] The movable rotary clamping structure 30 includes a spring 31, a pressing thin sheet 32, a locking pin 33, and a card slot 34, forming a movable structure that can rotate for locking, maintaining connection, and switching to open and releasing the connection relationship.
[0038] In the inner hole 11 of the main housing 10, a spring 31, a pressing thin sheet 32, and two locking pins 33 are arranged. The pressing thin sheet 32 presses the spring 31 and is disposed at the deepest part of the inner hole 11. The locking pin 33 extends from the radial direction of the inner hole 11 to the inner hole wall to limit the pressing thin sheet 32 and the spring 31.
[0039] Since the pressing thin sheet presses the spring 31 in the inner hole 11, the compressed spring 31 always gives an elastic force pushing outward to push the pressing thin sheet 32. Therefore, the pressing thin sheet 32 and the spring 31 constitute a reset driving force to push the shaft head 21 of the end connector 20 inserted therein.
[0040] The card slot 34 provided on the shaft head 21 plays an important role in clamping. Only when there is no locking pin 33 in the card slot, the shaft head 21 will be pushed outward by the pressing thin sheet 32, and the lock is in the released and open state; when the card slot 34 catches the locking pin 33 after rotation, the locking state of the lock is maintained and the whole is connected.
[0041] Specifically, 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. When the shaft head 21 presses the pressing thin sheet 32 to compress the spring 31, the through-hole slot 341 of the card slot 34 guides and slides the locking pin 33 and rotates by an angle to limit the locking pin 33 with the blind-hole slot 342, thereby switching the opening and locking of the rotary clamping structure 30.
[0042] The through-hole slot 341 and the blind-hole slot 342 of the card slot 34 are parallel to the axis of the shaft head 21. Corresponding to the positions of the two locking pins 33, two card slots are provided in the circumferential direction of the shaft head 21.
[0043] The circumferential distance between the two locking pins in the movable rotary clamping structure is 180°. Then the circumferential distance between the corresponding two card slots is also 180°. The through-hole slots and blind-hole slots of the two card slots are evenly distributed along the circumference of the shaft head and are 90° apart from each other.
[0044] Embodiment 2:
[0045] Please refer to Appendix Figure 4 and Appendix Figure 5, which shows the structure of Embodiment 2. The general structure of Embodiment 2 is similar to that of Embodiment 1. The difference is that the two end connectors 20 include a fixed end connector 20a and a movable end connector 20b. The fixed end connector 20a is fixedly assembled into the inner hole 11 of the main housing 10, and the movable end connector 20b is assembled into the inner hole 11 of the main housing 10 through a movable rotary clamping structure 30.
[0046] The fixed end connector 20a is inserted into the inner hole 11, and its axial displacement is limited by two locking pins 33 in the hole, and it has a degree of rotational freedom.
[0047] The fixed end connector 20a includes a clamping end 22. There is a connecting neck 23 between the clamping end 22 and the main body of the fixed end connector 20a. The two locking pins 33 are stuck on the connecting neck 23 to limit the fixed end connector.
[0048] So it is equivalent to that the fixed end connector 20a cannot be loosened from the main housing 10 and can rotate freely relative to the main housing 10. The opening and locking structures are placed between the movable end connector 20b and the main housing 10.
[0049] The rotary clamping lock of the present utility model connects the jewelry rope chain through the main housing and the end connector structures designed at both ends of the main housing to complete the locking and opening actions, realizing the locking and unlocking of the two ends of the jewelry rope chain. And this rotary clamping structure allows the shaft head with a card slot to be self-positioned and inserted and then slide in to be aligned. The sliding-in locking structure realizes the pushing and locking through the elastic force of the spring. 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.
[0050] 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, without departing from the scope of the technical solution of the present utility model, when making some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments of equivalent changes, but as long as it does not depart from the content of the technical solution 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 rotary snap lock, comprising a main housing and two end connectors, wherein the two end connectors are used to connect the two ends of a rope chain respectively and are assembled to the main housing in a fixed / movable manner, characterized in that: The main shell has two inner holes at both ends, each inner hole corresponds to an end connector, and at least one of the two end connectors is assembled into the main shell through a movable rotating clamping structure. The movable rotating clamping structure includes a spring, a tightening sheet, a locking pin and a clamping slot. A locking pin is provided in the main shell, and the spring is clamped in the inner hole of the locking pin by the tightening sheet. The end connector is provided with an axis head inserted into the inner hole of the main shell, and the axis head is provided with a clamping slot. The clamping slot rotates to switch between clamping the locking pin / loosening the locking pin.
2. The rotary snap lock according to claim 1, characterized in that: The two end connectors include a fixed end connector and a movable end connector, wherein the fixed end connector is fixedly assembled to the inner hole of the main shell, and the movable end connector is assembled to the inner hole of the main shell through a movable rotating clamping structure.
3. The rotary snap lock according to claim 2, characterized in that: The fixed end connecting piece is inserted into the inner hole, and the axial displacement is limited by two locking pins in the hole, and the device has rotational freedom.
4. The rotary snap lock according to claim 3, characterized in that: The fixed end connector comprises a clamping end, a connecting neck is arranged between the clamping end and the main body of the fixed end connector, and two locking pins are clamped in the connecting neck to define the fixed end connector.
5. The rotary snap lock according to claim 1, characterized in that: The two end connectors are assembled into the main housing through a movable rotating clamping structure, and the two end connectors are provided with shaft heads, and the shaft heads are provided with clamping grooves.
6. The rotary snap lock according to claim 5, characterized in that: The movable rotating clamping structure includes a spring, a tightening sheet, a locking pin and a clamping groove. A spring, a tightening sheet and two locking pins are arranged in the inner hole of the main shell. The tightening sheet presses the spring set in the deepest part of the inner hole. The locking pin extends from the radial direction of the inner hole to the inner hole wall to limit the tightening sheet and the spring.
7. The rotary snap lock according to claim 6, characterized in that: The 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 shaft head presses against the tightening sheet compression spring, the locking pin is guided by the through hole slot of the 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 clamping structure.
8. The rotary snap lock according to claim 7, characterized in that: The through hole groove and the blind hole groove of the clamping groove are parallel to the axis of the shaft head, corresponding to the orientation of the two locking pins, and two clamping grooves are arranged in the circumferential direction of the shaft head.
9. The rotary snap lock according to claim 8, characterized in that: The two locking pins in the movable rotating 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 shaft head and are 90° apart from each other.