A watch strap fixing lock head and watch strap buckle
Through the coordinated design of the inner locking tongue and the outer pressure plate, the inner and outer locking tongues clamp the watch strap together, solving the problem of loosening and indentation of the watch strap locking parts, and achieving a more stable watch strap fixation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东莞市德胜鑫精密五金制品有限公司
- Filing Date
- 2025-07-30
- Publication Date
- 2026-07-03
AI Technical Summary
Existing watch strap locking mechanisms are prone to loosening and indentation due to prolonged use, and a single-sided pressure plate cannot effectively tighten the strap, resulting in unstable clamping.
The design incorporates an inner locking tongue that works in conjunction with an outer pressure plate. The inner locking tongue provides an upward reaction force, while the outer pressure plate presses the watch strap down from below. The inner and outer locking tongues together clamp the watch strap, creating a two-way force that enhances the stability of the clamping.
It improves the stability of the watch strap, avoiding loosening and indentation problems caused by prolonged use, and allows for easy adjustment of the strap position.
Smart Images

Figure CN224440570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of watch strap fastener technology, and in particular to a watch strap fixing locking head and watch strap buckle. Background Technology
[0002] Currently, most watch strap locking mechanisms on the market use a pressure plate to tighten the strap from one side. Repeated tightening during adjustments can cause indentations or thinning of the strap. Furthermore, frequent adjustments over time can loosen the pressure plate, making a single-sided pressure plate insufficient to hold the strap securely. Therefore, further improvements to the structure of the watch strap locking mechanism are needed. Utility Model Content
[0003] In view of this, the present invention provides a watch strap fixing lock head and watch strap buckle. In view of the problems of the prior art, the inner locking tongue is designed to provide an upward reaction force to cooperate with the outer pressure plate to clamp the watch strap in both directions, thereby solving the existing technical problems.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A watch strap fixing lock head, comprising:
[0006] The main component is fixed, and a flat through cavity is provided at its lower part for the watch strap to pass through. Two sets of shaft holes, namely shaft hole one and shaft hole two, are respectively provided on the two side walls of the through cavity. Shaft hole one is located in front of and below shaft hole two.
[0007] The inner locking tongue has its top rotatably mounted in the shaft hole via a pivot, and its lower side is obliquely mounted in the through cavity. The middle of the inner locking tongue has a long strip-shaped through hole for the watch strap to pass through.
[0008] The outer pressure plate has its root rotatably mounted in the shaft hole 2 via the second rotating shaft. When the outer pressure plate is rotated and pressed down in the forward and downward direction, its root will press against the upper surface of the watch strap. The root of the outer pressure plate is located behind the through hole.
[0009] In use, the watch strap is inserted from the front of the through-hole, then through the inner latch through-hole, and finally through or through the back of the through-hole. Then, the outer pressure plate is rotated downwards and forwards, and the base of the outer pressure plate presses against and tightens the upper surface of the watch strap. At this time, the inner latch is also pressed down, and the part of the watch strap in front of the inner latch through-hole is pressed down and bent downwards, while the part of the watch strap behind the inner latch through-hole is bent upwards by the reaction force of the through-hole. The part of the watch strap behind the through-hole generates an upward force, and the base of the outer pressure plate presses the part of the watch strap behind the through-hole. In this way, the tightened part of the watch strap is clamped by forces in both the upper and lower directions.
[0010] Furthermore, the crossbar below the inner locking tongue through the hole is a rotatable rotating protrusion plate, and the upper side of the rotating protrusion plate is provided with an upward protrusion.
[0011] Furthermore, the root of the outer pressure plate is also provided with a downward-facing pressure band protrusion for further pressing the watch strap.
[0012] Furthermore, a positioning crossbar is also provided on the upper part of the front section of the through cavity of the fixed main component, which is used to abut against the front end of the outer pressure plate and position it after the outer pressure plate is rotated and pressed down in the forward and downward direction.
[0013] In addition, a watch strap buckle is provided, including the watch strap fixing locking head as described in any of the above claims, and a tail buckle fixed to the other end of the watch strap. The upper rear side of the main component of the watch strap fixing locking head through the cavity is provided with a fastener mounting plate. A female buckle is provided on the fastener mounting plate, and a male buckle corresponding to the female buckle is provided on the lower side of the tail buckle. The tail buckle can be detachably connected to the female buckle through the male buckle.
[0014] Furthermore, the female buckle is a magnetic iron piece installed on the fastener mounting plate, and the male buckle is a magnet installed on the underside of the tail buckle.
[0015] The beneficial effects of this utility model are as follows:
[0016] This invention features an inner locking tongue designed on the underside of the outer pressure plate of the watch strap fixing lock head. In use, the watch strap is inserted from the front of the through-cavity, then through the inner locking tongue's through-hole, and finally through or to the rear of the through-cavity. The outer pressure plate is then rotated downwards and forwards, pressing down on it. The base of the outer pressure plate abuts against and tightens the upper surface of the watch strap. At this time, the inner locking tongue is also pressed down. The portion of the watch strap in front of the inner locking tongue's through-hole is bent downwards, while the portion behind the through-hole bends upwards due to the reaction force from the through-hole. This generates an upward force on the portion of the watch strap behind the through-hole, and the base of the outer pressure plate presses down on the portion of the watch strap behind the through-hole. Thus, the tightened portion of the watch strap is clamped by forces in both directions, making the watch strap more secure and allowing for easy adjustment of its position without worrying about instability. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the watch strap fixing lock head in this utility model;
[0018] Figure 2 This is a schematic diagram showing the disassembled locking head of the watch strap in this utility model;
[0019] Figure 3 This is a schematic diagram of the watch strap buckle in this utility model.
[0020] The annotations in the attached figures are explained as follows:
[0021] Fixed main component 10, through cavity 11, shaft hole one 12, shaft hole two 13, positioning crossbar 14, fastener mounting plate 15, magnetic iron piece 16, watch strap 20, inner locking tongue 30, rotating shaft one 31, through hole 32, rotating protrusion plate 33, protruding ridge 331, outer pressure plate 40, rotating shaft two 41, protruding edge 42, tail buckle 50, magnet 51. Detailed Implementation
[0022] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings.
[0023] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. This disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.
[0024] To ensure a more secure clamping of the adjustable watch strap locking head, the specific details of this utility model are as follows.
[0025] Combination Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of this utility model is a watch strap fixing locking head. Importantly, it includes a fixing main component 10, the lower part of which is provided with a flat through cavity 11 for passing through the watch strap 20. Two sets of shaft holes 12 and 13 with opposite shaft holes are respectively provided on the two side walls of the through cavity 11. The shaft hole 12 is located in front of and below the shaft hole 13.
[0026] The inner locking tongue 30 is rotatably disposed in the shaft hole 12 via a pivot 31, and its lower side is obliquely disposed in the through cavity 11. The inner locking tongue 30 has a long strip-shaped through hole 32 in the middle for passing through the watch strap 20.
[0027] The outer pressure plate 40 is rotatably mounted in the shaft hole 13 via the second rotating shaft 41. When the outer pressure plate 40 is rotated and pressed down in the forward and downward direction, its root will press against the upper surface of the watch strap 20. The root of the outer pressure plate 40 is located behind the through hole 32.
[0028] The main point of this utility model is that, during use, the watch strap 20 is inserted from the front of the through cavity 11, then passes through the through hole 32 of the inner locking tongue 30, and finally passes through the rear of the through cavity 11. Then, the outer pressure plate 40 is rotated and pressed down in a forward and downward direction. The root of the outer pressure plate 40 abuts against and presses the upper surface of the watch strap 20. At this time, the inner locking tongue 30 is also pressed down. The part of the watch strap 20 located in front of the through hole 32 of the inner locking tongue 30 is pressed down and bent downwards, while the part of the watch strap 20 located behind the through hole 32 of the inner locking tongue 30 is subjected to the force of the through hole. The reaction force of hole 32 bends upward, and the part of the watch strap 20 located behind the hole 32 generates an upward force. The root of the outer pressure plate 40 presses the part of the watch strap 20 located behind the hole 32. In this way, the pressed part of the watch strap 20 is clamped by forces in both the upper and lower directions, making the watch strap more secure. This can effectively reduce the problem of the watch strap 20 becoming thinner due to long-term use or the outer pressure plate becoming loose, which may cause the clamping to become loose. It is convenient to move and adjust the position of the watch strap 20 at will without worrying about the problem of unstable clamping.
[0029] Furthermore, in some embodiments, such as Figure 2 As shown, in order to further improve the stability of clamping, the crossbar below the inner locking tongue 30 through the hole 32 is a rotatable rotating protrusion 33. The upper side of the rotating protrusion 33 is provided with an upward protrusion 331. When the inner locking tongue 30 is pressed down, the bottom of the rotating protrusion 33 is subjected to force and rotates upward. The protrusion 331 abuts against the part of the watch strap 20 located behind the through hole 32 and moves upward, which can better cooperate with the outer pressure plate 40 to press the watch strap 20.
[0030] Furthermore, in some embodiments, such as Figure 2 As shown, in order for the outer pressure plate 40 to better press the watch strap 20, the root of the outer pressure plate 40 is also provided with a downward pressing flange 42, which can be used to further press the watch strap 20.
[0031] Furthermore, in some embodiments, such as Figure 2 As shown, in order to rotate and position the outer pressure plate 40 and maintain its flatness after being pressed down, a positioning crossbar 14 is also provided at the upper front part of the through cavity 11 of the fixing main component 10. This crossbar 14 is used to hold the front end of the outer pressure plate 40 in the forward and downward direction after the outer pressure plate 40 is rotated and pressed down into place. After the outer pressure plate 40 is pressed into place, its outer side is flush with the outer side of the fixing main component 10.
[0032] In addition, this patent also provides a watch strap buckle, such as Figure 3As shown, the watch strap fixing locking head, as described in any of the above claims, also includes a tail buckle 50 fixed to the other end of the watch strap 20. A fastener mounting plate 15 is provided on the upper rear side of the main component 10 of the watch strap fixing locking head through the cavity 11. A female buckle is provided on the fastener mounting plate 15, and a male buckle corresponding to the female buckle is provided on the lower side of the tail buckle 50. The tail buckle 50 can be detachably connected to the female buckle via the male buckle. The fixing method of the tail buckle 50 can be the same as the fixing method of the watch strap fixing locking head described in this patent, or it can be a common fixing method currently on the market, which will not be described in detail here. The design of the male and female buckles can be various common fastening methods on the market. The watch strap fixing locking head of this patent can be applied to watch strap buckles with various fastening methods.
[0033] Furthermore, in some embodiments, such as Figure 3 As shown, for easier adjustment of the buckle, the female buckle is a magnetic iron piece 16 installed on the buckle mounting plate 15, and the male buckle is a magnet 51 installed on the lower side of the tail buckle 50. The buckle is fastened by magnetic attraction. Combined with the convenient and stable strap fixing lock head designed in this patent, users can more easily adjust the tightness and buckle.
[0034] The above description is merely illustrative of the embodiments of this utility model and is not intended to limit the scope of this utility model. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model without creative labor should be included within the protection scope of this utility model.
Claims
1. A band fixing lock head characterized by comprising: It includes: The main component (10) is fixed, and a flat through cavity (11) is provided at its lower part for the watch strap (20) to pass through. Two sets of shaft holes one (12) and shaft hole two (13) with opposite shaft holes are respectively provided on the two side walls of the through cavity (11). The shaft hole one (12) is located in front of and below the shaft hole two (13). The inner locking tongue (30) is rotatably disposed in the shaft hole (12) via a pivot (31) and its lower side is obliquely disposed in the through cavity (11) with the rear side facing the through cavity (11). The inner locking tongue (30) has a long strip-shaped through hole (32) in the middle for passing through the watch strap (20). The outer pressure plate (40) is rotatably mounted in the shaft hole (13) via the second rotating shaft (41). When the outer pressure plate (40) rotates and presses down in the forward and downward direction, its root will press against the upper surface of the watch strap (20). The root of the outer pressure plate (40) is located behind the through hole (32). When in use, the watch strap (20) is inserted from the front of the through cavity (11) and then through the inner locking tongue (30) through the hole (32), and finally through or through the back of the through cavity (11). Then, the outer pressure plate (40) is rotated and pressed down in the forward and downward direction. The root of the outer pressure plate (40) presses against the upper surface of the watch strap (20). At this time, the inner locking tongue (30) is also pressed down. The part of the watch strap (20) in front of the inner locking tongue (30) through the hole (32) is pressed down and bent downward. The part of the watch strap (20) in the back of the inner locking tongue (30) through the hole (32) is bent upward by the reaction force of the through hole (32). The part of the watch strap (20) in the back of the through hole (32) generates an upward force. The root of the outer pressure plate (40) presses the part of the watch strap (20) in the back of the through hole (32). In this way, the pressed part of the watch strap (20) is clamped by forces in both the upper and lower directions.
2. The watchband securement lock head of claim 1, wherein: The inner locking tongue (30) passes through the crossbar below the hole (32) and is a rotatable rotating protrusion plate (33). The upper side of the rotating protrusion plate (33) is provided with an upward protrusion ridge (331).
3. The watchband securement lock head of claim 1, wherein: The outer pressure plate (40) is also provided with a downward-facing pressure band protrusion (42) at its root for further pressing the watch strap (20).
4. The watchband securement lock head of claim 1, wherein: The upper part of the front section of the through cavity (11) of the fixed main component (10) is also provided with a positioning crossbar (14), which is used to press against the front end of the outer pressure plate (40) after the outer pressure plate (40) is rotated and pressed down in the forward and downward direction.
5. A watch strap buckle, characterized in that: The watch strap fixing locking head according to any one of claims 1 to 4 is further comprising a tail buckle (50) fixed to the other end of the watch strap (20). The main fixing part (10) of the watch strap fixing locking head is provided with a fastener mounting plate (15) on the upper rear side of the cavity (11). A female buckle is provided on the fastener mounting plate (15). A male buckle corresponding to the female buckle is provided on the lower side of the tail buckle (50). The tail buckle (50) can be detachably connected to the female buckle through the male buckle.
6. The watchband clasp of claim 5, wherein: The female buckle is a magnetic iron piece (16) installed on the fastener mounting plate (15), and the male buckle is a magnet (51) installed on the underside of the tail buckle (50).