Chain-shaped watchband lock catch structure

Abstract

The utility model discloses a chain-shaped watchband lock catch structure which comprises a top support, stress pieces, stress inclined planes, limiting inclined planes, limiting pieces and a bottom support, the stress pieces are symmetrically arranged on the two sides of the top support, the stress inclined planes are arranged on the stress pieces, and the stress inclined planes are tightly pressed on the limiting inclined planes; according to the utility model, the top bracket is rotationally connected to the bottom bracket through the mutual matching of the fixing ring and the connecting sleeve, the stress inclined surface on the stress piece is tightly pressed on the limiting inclined surface of the limiting piece after connection, and at the moment, the stress piece and the limiting piece are mutually spliced to form an annular lock catch structure to connect the metal chain links; after the lock catch is connected, the stress pieces on the two sides bear the pulling force borne by the chain links, the stress pieces and the top support are of an integrated structure, unlocking and breaking are not prone to occurring, and the fixing stability of the watchband is guaranteed; and during unlocking, the chain links can be taken down by rotating the top bracket and compressing the lock catch torsional spring and separating the stress inclined surface from the limiting inclined surface at the same time, so that the disassembly is convenient, and the practicability of the lock catch structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chain-shaped watchband fixing, in particular to a chain-shaped watchband locking structure. Background Art

[0002] A chain strap is a common strap style, especially in metal straps. This strap is composed of multiple metal links, which are connected together through connecting gaps to form a flexible strap structure. This strap adopts a hollow design, which not only reduces the weight of the watch, but also makes the chain strap have better breathability. Existing chain straps generally use steel rings or buckles for connection and fixation, but the connection part of the buckle structure is easy to unlock and disconnect when the chain is subjected to tension, thereby affecting the stability of the strap fixation; and the steel ring fixing method is not easy to disassemble, affecting the practicality of the locking structure; therefore, it is necessary to design a chain strap locking structure. Utility Model Content

[0003] The utility model aims to provide a chain watch strap lock structure to solve the problem that the existing chain watch strap generally uses steel rings or buckles for connection and fixation, but the connection part of the buckle structure is easy to unlock and disconnect when the chain is subjected to tension, thereby affecting the stability of the strap fixation; and the steel ring fixing method is not easy to disassemble, affecting the practicality of the lock structure.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions: a chain watch strap lock structure, including a top bracket, a force-bearing piece, a force-bearing inclined surface, a limiting inclined surface, a limiting piece, a bottom bracket, a circular groove, a lock torsion spring, a first force-bearing rod, a second force-bearing rod, a bottom notch, a top notch, a support platform, a connecting sleeve, a fixing ring, a connecting hole, a supporting ring, a limiting block and a limiting frame, the two sides of the top bracket are symmetrically provided with force-bearing pieces, the force-bearing inclined surfaces are provided on the force-bearing pieces, and the force-bearing inclined surfaces are pressed tightly On the limiting inclined plane, and the limiting inclined plane is arranged on the limiting piece, the limiting pieces are symmetrically arranged on both sides of the bottom bracket, a circular groove is opened at the top center of the bottom bracket, and a locking torsion spring is sleeved in the circular groove, a first force-bearing rod is arranged at the bottom end of the locking torsion spring, and a second force-bearing rod is arranged at the top end of the locking torsion spring, the first force-bearing rod is sleeved in the bottom slot, and the bottom slot is symmetrically opened on the bottom bracket, the second force-bearing rod is sleeved in the top slot, and the top slot is symmetrically opened at the bottom of the top bracket.

[0005] As a further technical solution of the utility model, a support platform is arranged at the inner bottom end of the circular groove, and a connecting sleeve is arranged at the top of the support platform.

[0006] As a further technical solution of the utility model, the fixing sleeve of the connecting sleeve is received in the fixing ring, and the fixing ring is rotatably connected in the connecting hole.

[0007] As a further technical solution of the utility model, the connecting hole is opened at the top center of the top bracket.

[0008] As a further technical solution of the utility model, a support ring is arranged in the connecting hole, and a limiting block is arranged on one side of the bottom of the support ring.

[0009] As a further technical solution of the utility model, the support ring is rotatably connected to the top of the limiting frame, and the limiting frame is fixed on the bottom bracket.

[0010] As a further technical solution of the utility model, the limiting frame is rotatably connected to the bottom of the connecting hole.

[0011] The chain watchband lock structure provided by the utility model has the advantages that the top bracket is rotatably connected to the bottom bracket through the mutual cooperation of the fixing ring and the connecting sleeve. After the connection, the first force-bearing rod and the second force-bearing rod at both ends of the lock buckle torsion spring are respectively sleeved on the bottom notch and the top notch. Under the elastic force of the lock buckle torsion spring, the force-bearing inclined surface on the force-bearing member is tightly pressed on the limiting inclined surface of the limiting member. At this time, the force-bearing member and the limiting member are assembled with each other to form an annular lock buckle structure to connect the metal chain links. After the lock is connected, the force-bearing members on both sides bear the tension on the chain links. The force-bearing member and the top bracket are an integrated structure and are not easy to be unlocked and disconnected, thereby ensuring the stability of the watchband fixation. When unlocking, the top bracket is rotated to compress the lock buckle torsion spring while separating the force-bearing inclined surface and the limiting inclined surface to remove the chain link. The disassembly is convenient, which improves the practicality of the lock buckle structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is an exploded view of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall structure of the utility model when the lock buckle is in a locked state;

[0015] Figure 3 It is an exploded view of part of the structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the overall structure of the utility model when the lock is unlocked;

[0017] Figure 5 It is a schematic diagram of the opening position of the top notch in the utility model;

[0018] Figure 6 It is a schematic diagram of the opening position of the bottom notch in the utility model.

[0019] In the figure: 1. top bracket; 2. force-bearing member; 3. force-bearing inclined plane; 4. limiting inclined plane; 5. limiting member; 6. bottom bracket; 7. circular groove; 8. locking torsion spring; 9. first force-bearing rod; 10. second force-bearing rod; 11. bottom notch; 12. top notch; 13. support platform; 14. connecting sleeve; 15. fixing ring; 16. connecting hole; 17. supporting ring; 18. limiting block; 19. limiting frame. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-6The utility model provides an embodiment: a chain watch strap lock structure, including a top bracket 1, a force-bearing member 2, a force-bearing inclined surface 3, a limiting inclined surface 4, a limiting member 5, a bottom bracket 6, a circular groove 7, a lock torsion spring 8, a first force-bearing rod 9, a second force-bearing rod 10, a bottom notch 11, a top notch 12, a support platform 13, a connecting sleeve 14, a fixing ring 15, a connecting hole 16, a supporting ring 17, a limiting block 18 and a limiting frame 19, and the top bracket 1 is symmetrically provided with A force-bearing member 2 is provided with a force-bearing inclined surface 3, the force-bearing inclined surface 3 is pressed tightly against the limiting inclined surface 4, and the limiting inclined surface 4 is provided on the limiting member 5, the limiting member 5 is symmetrically arranged on both sides of the bottom bracket 6, a circular groove 7 is opened at the top center of the bottom bracket 6, and a locking torsion spring 8 is sleeved in the circular groove 7, a first force-bearing rod 9 is provided at the bottom end of the locking torsion spring 8, and a second force-bearing rod 10 is provided at the top end of the locking torsion spring 8, the first force-bearing rod 9 is sleeved in the bottom notch 11, and The bottom notch 11 is symmetrically provided on the bottom bracket 6, the second force-bearing rod 10 is sleeved in the top notch 12, and the top notch 12 is symmetrically provided at the bottom of the top bracket 1, a support platform 13 is provided at the inner bottom end of the circular groove 7, and a connecting sleeve 14 is provided at the top of the support platform 13; the connecting sleeve 14 is fixedly sleeved in the fixing ring 15, and the fixing ring 15 is rotatably connected in the connecting hole 16; the connecting hole 16 is provided at the top center of the top bracket 1; a supporting ring 17 is provided in the connecting hole 16, and a limiting block 18 is provided on one side of the bottom of the supporting ring 17; the supporting ring 17 is rotatably connected to the top of the limiting frame 19, and the limiting frame 19 is fixed on the bottom bracket 6; the limiting frame 19 is rotatably connected to the bottom of the connecting hole 16, and after the lock is assembled, the limiting block 18 is located in the notch on the limiting frame 19, and then the limiting frame 19 is used to limit the limiting block 18 during the relative rotation of the top bracket 1 and the bottom bracket 6, so as to avoid excessive deformation and damage of the lock torsion spring 8;

[0023] Specifically, when in use, the top bracket 1 is rotated and connected to the bottom bracket 6 through the mutual cooperation of the fixing ring 15 and the connecting sleeve 14. After the connection, the first force-bearing rod 9 and the second force-bearing rod 10 at both ends of the locking torsion spring 8 are respectively sleeved on the bottom notch 11 and the top notch 12. Under the elastic force of the locking torsion spring 8, the force-bearing inclined surface 3 on the force-bearing member 2 is tightly pressed on the limiting inclined surface 4 of the limiting member 5. At this time, the force-bearing member 2 and the limiting member 5 are assembled with each other to form an annular locking structure to connect the metal chain links. After the locking connection, the force-bearing members 2 on both sides bear the tension of the chain links. The force-bearing member 2 and the top bracket 1 are an integrated structure that is not easy to unlock and disconnect, thereby ensuring the stability of the strap fixation; when unlocking, the top bracket 1 is rotated to compress the locking torsion spring 8 while disengaging the force-bearing inclined surface 3 and the limiting inclined surface 4 to remove the chain link, which is convenient to disassemble and improves the practicality of the locking structure.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A chain watch strap buckle structure, comprising a top bracket (1), a force-bearing member (2), a force-bearing inclined surface (3), a limiting inclined surface (4), a limiting member (5), a bottom bracket (6), a circular groove (7), a locking torsion spring (8), a first force-bearing rod (9), a second force-bearing rod (10), a bottom notch (11), a top notch (12), a support platform (13), a connecting sleeve (14), a fixing ring (15), a connecting hole (16), a supporting ring (17), a limiting block (18) and a limiting frame (19), characterized in that: The top bracket (1) is symmetrically provided with force-bearing members (2), the force-bearing members (2) are provided with force-bearing inclined surfaces (3), the force-bearing inclined surfaces (3) are pressed tightly against the limiting inclined surfaces (4), and the limiting inclined surfaces (4) are provided on the limiting members (5), the limiting members (5) are symmetrically provided on the two sides of the bottom bracket (6), a circular groove (7) is provided at the top center of the bottom bracket (6), and a locking torsion spring (8) is sleeved in the circular groove (7), a first force-bearing rod (9) is provided at the bottom end of the locking torsion spring (8), and a second force-bearing rod (10) is provided at the top end of the locking torsion spring (8), the first force-bearing rod (9) is sleeved in the bottom notch (11), and the bottom notch (11) is symmetrically provided on the bottom bracket (6), the second force-bearing rod (10) is sleeved in the top notch (12), and the top notch (12) is symmetrically provided at the bottom of the top bracket (1).

2. The chain strap buckle structure according to claim 1, characterized in that: A support platform (13) is provided at the inner bottom end of the circular groove (7), and a connecting sleeve (14) is provided at the top of the support platform (13).

3. The chain watch strap buckle structure according to claim 2, characterized in that: The fixing sleeve of the connecting sleeve (14) is received in the fixing ring (15), and the fixing ring (15) is rotatably connected in the connecting hole (16).

4. The chain strap buckle structure according to claim 3, characterized in that: The connection hole (16) is opened at the top center of the top bracket (1).

5. The chain watch strap buckle structure according to claim 4, characterized in that: A support ring (17) is arranged in the connection hole (16), and a limiting block (18) is arranged on one side of the bottom of the support ring (17).

6. The chain watch strap buckle structure according to claim 5, characterized in that: The support ring (17) is rotatably connected to the top of the limiting frame (19), and the limiting frame (19) is fixed on the bottom bracket (6).

7. The chain watch strap buckle structure according to claim 6, characterized in that: The limiting frame (19) is rotatably connected to the bottom of the connecting hole (16).

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