Watchband head quick-release spring bar structure

Abstract

The utility model relates to a watch strap head quick-release spring bar structure which comprises a spring bar main body, a spring bar, a spring bar and a spring bar, the first spring bar and the second spring bar are arranged in the through hole in a spaced mode, an elastic piece is arranged between the opposite ends of the first spring bar and the second spring bar, and the opposite ends of the first spring bar and the second spring bar extend to the outer side of the through hole; the sliding block is arranged on the first spring bar rod or the second spring bar rod in a sleeving mode and extends to the outer side of the spring bar body, and the sliding block can push the first spring bar rod or the second spring bar rod to slide along the through hole and compress the elastic piece; the sleeve is movably arranged on the elastic piece in a sleeving manner and is movably clamped in the through hole; the quick release valve has the advantages that blockage or blockage caused by poor lubricity of materials during quick release is reduced, the quick release function and smoothness are ensured, the service life of a product is prolonged, the use experience of the product is improved, and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of watch strap head structures, in particular to a watch strap head quick-detachable spring ear structure. Background Art

[0002] Traditional strap replacement requires the use of a special spring-ear removal tool, which is relatively complicated to operate, and may damage the watch case or the spring-ear itself if you are not careful. In order to facilitate users to quickly and easily change the strap of the watch without using any tools, a quick-release spring-ear structure has emerged. With the development of technology, the structure of the quick-release spring-ear is also constantly optimized to improve its durability, reliability and user experience. In the current prior art, the various structures of the spring-ear are usually made of the same material. When disassembling the spring-ear, the spring-ear rod needs to slide and retract inside the main body of the spring-ear. However, in the actual production process, it is found that due to the different friction coefficients between different materials, when the friction coefficient of the material is large, the sliding of the spring-ear rod will be hindered, resulting in uneven sliding and affecting product quality and user experience. Utility Model Content

[0003] The utility model aims to provide a watch strap head quick-release ear structure, aiming to solve the technical problem in the prior art that when the material friction coefficient is large, the ear rod is blocked and not smoothly slides in the ear body.

[0004] In order to solve the above technical problems, the utility model provides a watch strap head quick-release ear structure, comprising: an ear body, which is provided with a through hole; a first ear rod and a second ear rod, which are arranged in the through hole at intervals, and an elastic member is provided between the opposite ends of the first ear rod and the second ear rod, and the opposite ends extend to the outside of the through hole; a slider, which is sleeved on the first ear rod or the second ear rod and extends to the outside of the ear body, and the slider can push the first ear rod or the second ear rod to slide along the through hole and compress the elastic member; a sleeve, which is movably sleeved on the elastic member and movably clamped in the through hole, and the sleeve and the ear body are made of the same or different materials.

[0005] When the first or second ear rod slides along the through hole to compress the elastic member along the through hole, a sleeve made of the same or different material as the ear body can be used as an intermediate member between the elastic member and the ear body, so that the elastic member slides and is compressed inside the sleeve. The sleeve slides in the through hole to avoid direct contact between the elastic member and the ear body, reduce the sense of blockage or jamming caused by the large friction coefficient between the elastic member and the ear body, improve the smoothness of moving the first or second ear rod, realize the quick-release function and smoothness, and help to extend the service life of the product and improve the product user experience.

[0006] Preferably, the ear main body is made of titanium, and the first ear rod, the second ear rod, the elastic member and the sleeve are made of steel.

[0007] Due to the poor lubricity of titanium, the friction coefficient between the steel elastic part and the titanium spring ear body is larger than the friction coefficient between the steel elastic part and the steel sleeve. In addition, the contact area between them is also larger, which causes greater friction between the elastic part and the spring ear body when compressed in the through hole, resulting in a blockage or jamming when the first spring ear rod or the second spring ear rod is moved, affecting the quick release function. Using a steel sleeve to be sleeved on the steel elastic part can avoid direct contact between the elastic part and the spring ear body, reduce the above-mentioned friction coefficient, ensure the smoothness of the quick release, and help reduce the blockage or jamming caused by the above-mentioned friction, thereby improving the service life and usage experience of the product.

[0008] Preferably, the ear body is provided with a sliding hole matching the sliding block, and the sliding block is slidably clamped in the sliding hole.

[0009] A portion of the slider extending out of the outer side of the ear body requires a certain amount of space to be left on the ear body so that the slider can push the first ear rod or the second ear rod to compress the elastic member along the through hole. Therefore, a sliding hole matching the slider is provided, and the slider is slidably clamped in the sliding hole, which can prevent the slider from being unable to push the ear rod to compress the elastic member along the through hole due to deviation, and is conducive to improving the stability of quick disassembly of the watch strap.

[0010] Preferably, the length of the sliding hole is greater than the length of the sliding block.

[0011] Ensure that the slider can push the first ear rod or the second ear rod to compress the elastic member along the through hole, so that the first ear rod or the second ear rod can be separated from the predetermined installation position on the dial, and then the watch strap can be removed, which is beneficial to improve the stability of the quick removal of the watch strap head.

[0012] Preferably, a groove for fixing a watch strap is provided on the ear body.

[0013] The groove body can make the spring ear body firmly installed on the watch strap, which is beneficial to improving the stability of the spring ear body and preventing the spring ear body from falling off; in addition, the spring ear body can be installed and removed more simply and quickly, which is beneficial to the subsequent maintenance of the spring ear body.

[0014] Preferably, the first ear rod includes a first limiting column and a first extension column connected to the first limiting column, the second ear rod includes a second limiting column and a second extension column connected to the second limiting column, the first limiting column and the second limiting column are opposite to each other, and the first extension column and the second extension column extend to the outside of the through hole.

[0015] The first and second ear rods are designed separately to prevent the need to replace the entire ear rod when one side of the entire ear rod connected to the dial is damaged. At the same time, the functionality of the first and second ear rods can be distinguished, which is beneficial to the assembly and subsequent maintenance of the first and second ear rods. The first limiting column and the second limiting column are arranged relative to each other to prevent the first and second ear rods from generating relative radial offset, and enable the first and second ear rods to fully contact and compress the elastic member, thereby improving the stability of the quick disassembly of the watch strap head. The first extension column and the second extension column extend to the outside of the through hole and can fully cooperate with the holes on the dial to fix the watch strap. When the slider pushes the first and second ear rods, the first extension column or the second extension column is retracted to the hole to be detached from the installation, thereby realizing quick installation and removal of the watch strap.

[0016] Preferably, an integrally formed stepped shaft structure is formed between the first limiting column and the first extension column, and between the second limiting column and the second extension column, and the sliding block abuts against one end of the first limiting column or the second limiting column.

[0017] From an overall perspective, the stepped shaft structure can distinguish different functional areas of the first ear rod or the second ear rod, which is conducive to improving assembly efficiency; the larger diameter section, namely the first limit column or the second limit column, can increase the bending strength of the ear rod, while the smaller diameter section, namely the first extension column or the second limit column, is convenient for insertion into the hole of the dial, which is conducive to improving overall stability and durability; the stepped shaft structure on the first ear rod or the second ear rod can also cooperate with the slider, so that the slider can push the first ear rod or the second ear rod to compress the elastic part along the through hole, and then remove the watch strap, which is conducive to improving the stability of the quick disassembly of the watch strap head.

[0018] Preferably, symmetrical installation grooves are provided at both ends of the through hole, and a limiting piece is fixedly connected in the installation groove, the first limiting column or the second limiting column abuts against the limiting piece, and the first extension column and the second extension column can movably pass through the limiting piece.

[0019] The position of the first limiting post or the second limiting post is limited by cooperating with the limiting piece and the first limiting post or the second limiting post, thereby preventing the first and second ear rods from accidentally moving or falling off due to external force during use, which is beneficial to enhancing the stability and safety of the connection between the watch strap and the watch case; the limiting piece can accurately locate the position of the first and second ear rods in the through hole, avoiding deviation during the assembly process, which is beneficial to improving the efficiency and accuracy of the assembly, and further beneficial to subsequent maintenance; the limiting piece can also absorb part of the pressure transmitted to the ear rods by impact or vibration, reduce the wear and damage of the first and second ear rods, and is beneficial to extending the service life of the first and second ear rods.

[0020] Preferably, a gear-tooth-shaped protrusion is provided on the limiting member, and the gear-tooth-shaped protrusion abuts against the inner wall of the installation groove.

[0021] The gear-tooth-like protrusion can form a mechanical engagement with the installation groove, and when subjected to vibration or impact, it can maintain close contact between the limit piece and the inner wall of the installation groove to prevent loosening or falling off. At the same time, it increases the contact area with the inner wall of the installation groove, increases friction, and makes it less likely for the limit piece to be displaced or deformed, which is beneficial to enhancing the stability of the connection. No additional tools or fasteners are required, and only appropriate pressure is required to complete the installation, which is beneficial to reducing production and processing costs, facilitating installation and disassembly, and subsequent maintenance.

[0022] Preferably, both ends of the gear-tooth-shaped protrusion are provided with inclined surfaces opposite to the inner wall of the mounting groove.

[0023] The inclined surface can make it more convenient and quick to install the limit part into the installation groove, reduce the difficulty of installing the limit part, and help improve the installation and disassembly efficiency and subsequent maintenance of the limit part; at the same time, after installation, the gear-shaped protrusion of the limit part is interference fit with the inner wall of the installation groove, and the gear-shaped protrusion is stuck into the inner wall of the installation groove. At this time, the inclined surface can help prevent the axial deviation of the limit part from detaching from the installation groove, which is beneficial to enhance the stability of the connection.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] When the first or second ear rod slides along the through hole to compress the elastic member along the through hole, a sleeve made of the same or different material as the ear body can be used as an intermediate member between the elastic member and the ear body, so that the elastic member slides and is compressed inside the sleeve. The sleeve slides in the through hole to avoid direct contact between the elastic member and the ear body, reduce the sense of blockage or jamming caused by the large friction coefficient between the elastic member and the ear body, improve the smoothness of moving the first or second ear rod, realize the quick-release function and smoothness, and help to extend the service life of the product and improve the product user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 The present invention is a schematic diagram of the overall structure of a quick-release spring ear structure for a watch strap head.

[0028] Figure 2 It is a schematic diagram of the structure of the main body of the ear.

[0029] Figure 3 It is a schematic diagram of the structure of the main body without living ears.

[0030] Icons: 10-ear body; 11-through hole; 12-sliding hole; 13-installing slot; 14-slot body; 20-first ear rod; 21-first limiting column; 22-first extension column; 23-first step; 30-second ear rod; 31-second limiting column; 32-second extension column; 33-second step; 40-slider; 50-elastic member; 60-sleeve; 70-limiting member; 80-strap. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the accompanying drawings. The accompanying drawings show preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0032] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] In this embodiment, please refer to Figure 1 and Figure 3 As shown, the utility model provides a watch strap head quick-release ear structure, which includes an ear body 10, a through hole 11 penetrating the ear body 10 is provided on one side of the ear body 10, and a first ear rod 20, an elastic member 50, and a second ear rod 30 coaxial with the through hole 11 are sequentially provided in the through hole 11.

[0035] The first ear rod 20 and the second ear rod 30 are respectively located at the two ends of the through hole 11, and an elastic member 50 is arranged between the opposite ends thereof, and the opposite end extends to the outside of the through hole 11; a slider 40 is sleeved on one of the ear rods, which is the first ear rod 20 in this embodiment, and a part of the slider 40 passes through the ear body 10 and extends to the outside of the ear body 10. It can be understood that the slider 40 can push the ear rod sleeved thereon to slide along the through hole 11 and compress the elastic member 50 toward the other ear rod, which is the second ear rod in this embodiment; a movable sleeve 60 is sleeved on the elastic member 50, and the sleeve 60 and the through hole 11 are movably connected, and the ear body 10 and the sleeve 60 are made of the same or different materials. In this embodiment, the elastic member 50 is a compression spring, and it can be understood that the elastic member 50 and the sleeve 60, and the sleeve 60 and the through hole 11 are all movable, and the elastic member 50 can also be a coil spring, a shape memory alloy, etc.

[0036] In addition, two sliders 40 can be provided, which are respectively sleeved on the first ear rod 20 and the second ear rod 30; the sleeve 60 can also be movably sleeved on the first ear rod 20 and the second ear rod 30, or fixedly connected to the through hole 11. When the sleeve 60 and the slider 40 overlap, it is necessary to leave space for the slider 40 to extend outside the ear body 10, just like the through hole 11.

[0037] In this embodiment, the ear body 10 is made of titanium, and the first ear rod 20, the second ear rod 30, the elastic member 50 and the sleeve 60 are made of steel. It is understandable that because the lubrication performance of titanium is poor, when there is no sleeve 60, the friction coefficient between the steel elastic member 50 and the ear body 10 of titanium is larger than the friction coefficient between it and the steel sleeve 60, and the contact area is also larger, which makes it easy for the elastic member 50 to produce a sense of blockage or jamming when compressed in the through hole 11, affecting the function and smoothness of quick release. After the steel sleeve 60 is sleeved on the steel elastic member 50, direct contact between the elastic member 50 and the ear body 10 can be avoided, the above-mentioned friction coefficient is reduced, and the smoothness of quick release is ensured, which is conducive to reducing the sense of blockage or jamming caused by the above-mentioned friction, and improving the service life and use experience of the product.

[0038] It is understandable that the sleeve 60 may also be sleeved on the first ear bar 20 and the second ear bar 30 , and the first ear bar 20 and the second ear bar 30 may also have the same effect as the elastic member 50 .

[0039] In addition, the ear rod, elastic member, and sleeve may also be made of other materials of the same or different kinds, so that the friction coefficients between the ear rod, elastic member, and sleeve are smaller than the friction coefficients between the ear rod, elastic member, and sleeve and the ear body, and the smoothness of quick release can be ensured.

[0040] In this embodiment, please refer to Figure 2 As shown, the main body 10 of the ear is provided with a sliding hole 12 for the slider 40 to extend to the outside of the main body 10 of the ear, and the slider 40 is slidably clamped in the sliding hole 12, and the shape of the sliding hole 12 is a restricted shape matching the slider 40, which can allow the slider 40 to slide axially along the through hole 11 while limiting the oscillating movement of the slider 40 along the circumferential direction of the through hole 11.

[0041] In addition, when two sliders 40 are provided, there are also two sliding holes 12; a matching snap-fit ​​sliding structure may also be provided on the slider 40 and the sliding hole 12 to improve the sliding stability of the slider 40; further, the shape and structure of the sliding hole 12 may also be unrestricted, as long as the slider 40 can push the first ear rod 20 or the second ear rod 30 to slide along the through hole 11 and compress the elastic member 50.

[0042] For details, please refer to Figure 1 and Figure 2 The length of the sliding hole 12 is greater than the length of the slider 40. It can be understood that the axial length of the sliding hole 12 needs to be sufficient to allow the slider 40 to slide axially for a certain distance. The sliding distance can enable the first ear rod 20 or the second ear rod 30 pushed by the slider 40 and sliding along the through hole 11 to be separated from the predetermined installation position of the dial, thereby completing the quick disassembly of the watch strap 80.

[0043] In this embodiment, please refer to Figure 2 As shown, the ear main body 10 is also provided with a groove 14 for fixing the strap 80. It can be understood that the groove 14 matches the fixed end of the strap 80. In addition, components for fixing the strap 80 and the ear main body 10 can also be set on the groove 14 to further improve the stability of the connection between the ear main body 10 and the strap 80.

[0044] In this embodiment, please refer to Figure 3 As shown, the first ear rod 20 includes a first limiting column 21 and a first extension column 22 connected to the first limiting column 21, and the second ear rod 30 includes a second limiting column 31 and a second extension column 32 connected to the second limiting column 31. The first limiting column 21 and the second limiting column 31 are opposite to each other, and the elastic member 50 is located between the first limiting column 21 and the second limiting column 31. The first extension column 22 and the second extension column 32 extend to the outside of the through hole 11.

[0045] It can be understood that the diameter size of the relative parts of the first limit column 21 and the second limit column 31 must meet the requirement that the first limit column 21 and the second limit column 31 fully contact and squeeze the elastic member 50, so as to avoid the elastic member 50 providing an axially offset elastic force to the first limit column 21 and the second limit column 31, thereby affecting the installation and disassembly of the strap 80. The diameter of the remaining part can be changed. In addition, at this time, the slider 40 is mounted on the first extension column 22 or the second extension column 32.

[0046] In addition, a protrusion that can extend into the elastic member 50 can be provided at the contact end of the first limiting column 21 and the second limiting column 31 with the elastic member 50, so that the ear rod can more fully contact and squeeze the elastic member 50, thereby improving the assembly efficiency and the stability of the quick disassembly of the watch strap head. It should be noted that the protrusion does not affect the slider 40 pushing the first ear rod 20 or the second ear rod 30 to slide along the through hole 11 and detach from the dial.

[0047] For details, please refer to Figure 3 There are integrally formed stepped shaft structures between the first limiting column 21 and the first extension column 22, and between the second limiting column 31 and the second extension column 32, which are the first step 23 and the second step 33 respectively. The slider 40 abuts against the first step 23 or the second step 33. It can be understood that in the stepped shaft structure, the diameters of the first limiting column and the second limiting column are larger than those of the first extension column or the second extension column, forming the first step 23 and the second step 33 that shrink from the inside of the through hole 11 to the outside of the through hole 11, and the slider 40 abuts against the end of the first limiting column 21 or the second limiting column 31 away from the elastic member 50.

[0048] In addition, a detachable limiting portion may be provided on the first extension column 22 or the second extension column 32 , so that the limiting portion and the first limiting column 21 or the second limiting column 31 jointly limit the axial movement of the slider 40 on the first extension column 22 or the second extension column 32 .

[0049] More specifically, please refer to Figure 3 Symmetrical mounting grooves 13 are provided at both ends of the through hole 11, and a limiting member 70 is fixedly connected in the mounting groove 13. The first limiting column 21 or the second limiting column 31 abuts against the limiting member 70, and the first extension column 22 and the second extension column 32 can both movably pass through the limiting member 70.

[0050] It can be understood that the limit member 70, the mounting groove 13, the first extension column 22 or the second extension column 32 are on the same axis, the limit member 70 is interference fit with the mounting groove 13, and abuts against the groove surface of the mounting groove 13; after the limit member 70 is passed by the first extension column 22 or the second extension column 32, the remaining part of the limit member 70 in the area of ​​the through hole 11 abuts against the first limit column 21 or the second limit column 31.

[0051] In addition, the installation groove 13 may not be provided. In this case, the limiting member 70 is directly installed at both ends of the through hole 11 without exposing the ear body 10. After the first extension column 22 or the second extension column 32 passes through the limiting member 70, the first limiting column 21 or the second limiting column 31 can abut against the limiting member 70.

[0052] More specifically, please refer to Figure 3The stopper 70 is provided with a gear-tooth-shaped protrusion, which abuts against the inner wall of the mounting groove 13. It can be understood that under the interference fit, the gear-tooth-shaped protrusion increases the contact area between the stopper 70 and the inner wall of the mounting groove 13, and increases the friction between the stopper 70 and the inner wall of the mounting groove 13 without damaging the inner wall of the mounting groove 13. Therefore, a corresponding clamping structure can also be provided on the stopper 70 and the mounting groove 13.

[0053] In addition, a limiting ring may be provided at the installation groove 13 near the outer side of the through hole 11, and the limiting member 70 may be squeezed into the installation groove 13 from the limiting ring, and the two sides of the limiting member 70 may respectively abut against the bottom of the installation groove 13 and the limiting ring.

[0054] More specifically, please refer to Figure 3 Both ends of the gear-tooth-shaped protrusion are provided with inclined surfaces opposite to the inner wall of the mounting groove 13.

[0055] The specific application process of the utility model is as follows:

[0056] When the slider 40 is sleeved on the first extension column 22, in the initial state, the elastic member 50 in the sleeve 60 presses the first limiting column 21 and the second limiting column 31 toward the two ends of the through hole 11, the first limiting column 21 presses the slider 40 until the slider 40 abuts against the sliding hole 12, the second limiting column 31 abuts against the limiting member 70 on the same side thereof, and the first extension column 22 and the second extension column 32 normally extend out of the through hole 11;

[0057] When installing the watch strap head, push the slider 40 to the other side where the slider 40 abuts the sliding hole 12. The slider 40 drives the first ear rod 20 to slide along the axial direction of the through hole 11 through the abutting first limiting column 21, and the second ear rod 30 jointly squeezes the elastic member 50. The elastic member 50 slides and compresses in the sleeve 60, so that the first extension column 22 shrinks into the through hole 11, and the second extension column 32 is installed into the predetermined position on one side of the dial. After the first extension column 22 is aligned with the predetermined position on the other side, the slider 40 is released, and the elastic member 50 slides and stretches in the sleeve 60, so that the quick-release ear structure of the watch strap head returns to the initial state. The first extension column 22 is rotated into the predetermined position on the other side of the dial, and the installation of the watch strap head is completed.

[0058] When removing the watch strap head, the initial steps are the same as when installing the watch strap head. After the first extension column 22 shrinks into the through hole 11 and leaves the predetermined position, the ear body 10 is tilted and moved so that the second extension column 32 also leaves the predetermined position, and the slider 40 is released. The elastic member 50 slides and stretches in the sleeve 60, so that the quick-release ear structure of the watch strap head returns to its initial state, and the removal of the watch strap head is completed.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-release spring ear structure for a watch strap head, characterized in that: include: A main body of the ear, wherein the main body of the ear is provided with a through hole; A first ear rod and a second ear rod are arranged in the through hole at intervals, an elastic member is arranged between opposite ends of the first ear rod and the second ear rod, and opposite ends extend to the outside of the through hole; A slider, which is sleeved on the first ear rod or the second ear rod and extends to the outside of the ear body, and the slider can push the first ear rod or the second ear rod to slide along the through hole and compress the elastic member; A sleeve is movably sleeved on the elastic member and movably clamped in the through hole, and the sleeve and the ear body are made of the same or different materials.

2. The quick-release spring ear structure for a watch strap head according to claim 1, characterized in that: The ear main body is made of titanium, and the first ear rod, the second ear rod, the elastic member and the sleeve are made of steel.

3. The quick-release spring ear structure for a watch strap head according to claim 1, characterized in that: The ear body is provided with a sliding hole matching the sliding block, and the sliding block is slidably clamped in the sliding hole.

4. The quick-release spring ear structure for a watch strap head according to claim 3, characterized in that: The length of the sliding hole is greater than the length of the sliding block.

5. The quick-release spring ear structure for a watch strap head according to claim 1, characterized in that: The main body of the ear is provided with a groove for fixing the watch strap.

6. The watch strap head quick-release spring ear structure according to claim 1, characterized in that: The first ear rod includes a first limiting column and a first extension column connected to the first limiting column, the second ear rod includes a second limiting column and a second extension column connected to the second limiting column, the first limiting column and the second limiting column are opposite to each other, and the first extension column and the second extension column extend to the outside of the through hole.

7. The watch strap head quick-release spring ear structure according to claim 6, characterized in that: An integrally formed stepped shaft structure is formed between the first limiting column and the first extending column, and between the second limiting column and the second extending column. The sliding block abuts against one end of the first limiting column or the second limiting column.

8. The watch strap head quick-release spring ear structure according to claim 7, characterized in that: Symmetrical mounting grooves are provided at both ends of the through hole, and a limiting piece is fixedly connected in the mounting groove. The first limiting column or the second limiting column abuts against the limiting piece, and the first extension column and the second extension column can movably pass through the limiting piece.

9. The watch strap head quick-release spring ear structure according to claim 8, characterized in that: The limiting member is provided with a gear-tooth-shaped protrusion, and the gear-tooth-shaped protrusion abuts against the inner wall of the installation groove.

10. The watch strap head quick-release spring ear structure according to claim 9, characterized in that: Both ends of the gear-tooth-shaped protrusion are provided with inclined surfaces opposite to the inner wall of the mounting groove.

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