Double-press quick-release watchband and watch

Abstract

This utility model provides a double-press quick-release watch strap and a watch. The double-press quick-release watch strap includes multiple bead assemblies. Each bead assembly includes a central bead, a quick-release connecting assembly, and two side beads. The inner surface of the rear end of each side bead has a first lug hole. The front end of the central bead has a first mounting hole and two second mounting holes. The first mounting hole extends through both sides of the central bead along the width direction of the strap. The two second mounting holes extend from the lower surface of the central bead to the first mounting hole, and the second mounting holes are oblong. The quick-release connecting assembly includes a compression spring fitted into the first mounting hole, two locking pins, two telescopic pins, and two sliding pins. Each telescopic pin has a radial third mounting hole, and the telescopic pin is limited by the sliding pins inserted through the second mounting holes into the third mounting holes. This utility model enables quick assembly and disassembly of adjacent beads, and the assembly structure is relatively simple.

Description

Technical Field

[0001] This utility model relates to the field of watches, and more specifically, to a double-press quick-release watch strap and a watch. Background Technology

[0002] A wristwatch, also known as a wristwatch, is an instrument worn on the wrist for telling and displaying time. A wristwatch generally consists of a watch face (used to display the time) and a watch strap. The watch strap is usually made of materials such as leather, rubber, nylon, and metal (such as stainless steel) and is used to fasten the watch face to the wrist.

[0003] Currently, to facilitate strap length adjustment, most metal watch straps on the market use a quick-release mechanism, meaning that the strap beads can be removed without tools to adjust the strap length by adding or removing beads. However, the assembly structure of existing quick-release watch straps is relatively complex. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a double-press quick-release watch strap and watch, addressing the issue of the complex assembly structure of the aforementioned quick-release watch strap.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is to provide a double-press quick-release watch strap, including multiple strap bead assemblies connected sequentially along the length of the watch strap. Each strap bead assembly includes a center bead, a quick-release connecting assembly and two side beads, and the rear end of the center bead is connected between the front ends of the two side beads.

[0006] Each of the side beads has a first ear hole on the inner surface of its rear end, and the center line of the first ear hole is set along the width direction of the watch strap; the front end of the middle bead has a first mounting hole and two second mounting holes, the first mounting hole penetrates through both sides of the middle bead along the width direction of the watch strap, and the two second mounting holes are respectively penetrated from the lower surface of the middle bead to the first mounting hole, and the second mounting holes are waist-shaped holes with their long axis set along the width direction of the watch strap;

[0007] The quick-release connection assembly includes a compression spring, two locking pins, two telescopic pins, and two sliding pins. Each telescopic pin has an axial first pin head at its leading end, an axial blind hole at its trailing end, and a radial third mounting hole. Each locking pin has an axial second pin head at its leading end.

[0008] Two locking pins are coaxially arranged with their second pin heads facing away from each other in the first mounting hole of the middle bead. The compression spring is installed between the two locking pins. The tail ends of the two telescopic pins are inserted into the first mounting hole from the openings at both ends, until the second pin head is inserted into the blind hole. The telescopic pin is then limited in the first mounting hole by a sliding pin inserted through the second mounting hole into the third mounting hole. When the sliding pin is pushed against the outer end of the second mounting hole by the compression spring and the locking pin, the first pin head protrudes from the side surface of the middle bead. When the sliding pin abuts against the inner end of the second mounting hole, the first pin head retracts into the first mounting hole. The front end of the middle bead is assembled with the adjacent bead assembly by embedding the two first pin heads into the first ear holes on the side bead of the adjacent bead assembly.

[0009] As a further improvement of this utility model, the third mounting hole extends radially from the outer surface of the telescopic nail into the blind hole; the portion of the sliding nail inserted into the third mounting hole has a circumferential groove, the width of which is adapted to the diameter of the second nail head, and when the sliding nail is inserted into the third mounting hole, the second nail head is embedded in the circumferential groove, preventing the sliding nail from exiting the third mounting hole.

[0010] As a further improvement of this utility model, the radial dimension of the main body of the locking pin is greater than the radial dimension of the blind hole, and the length of the second pin head is less than the distance from the center of the third mounting hole to the end face of the telescopic pin; the end of the sliding pin has a tapered surface, and when the sliding pin is inserted into the third mounting hole, the tapered surface pushes the locking pin backward and compresses the compression spring until the circumferential groove is opposite to the second pin head, and the compression spring pushes the locking pin to make the second pin head embed into the circumferential groove.

[0011] As a further improvement of this utility model, the first end of the sliding pin has a mushroom head, and the size of the mushroom head in the length direction of the watch strap is greater than the size of the second mounting hole in the length direction of the watch strap; the front end of the lower surface of the middle bead has two grooves, each second mounting hole extends from the bottom of the groove to the first mounting hole, and the depth of the groove is greater than or equal to the height of the mushroom head of the sliding pin.

[0012] As a further improvement of this utility model, the inner side of the end face of the two side beads is respectively formed with a guide groove extending to the inner side. When the middle bead is assembled to the adjacent bead assembly, the free ends of the two first nail heads are embedded in the guide grooves of the two side beads and, under the push of the guide grooves, the two telescopic nails and the two locking nails slide inward in the first mounting hole and push the compression spring to compress.

[0013] As a further improvement of this utility model, the free ends of the first nail head and the second nail head each have a conical surface.

[0014] As a further improvement of this utility model, in each of the beaded components, from the rear end of the side bead to the first ear hole, the distance between the inner surfaces of the two side beads gradually decreases to match the width of the middle bead.

[0015] As a further improvement of this utility model, each of the side beads has a second ear hole at the front part along the length direction of the watch strap on its inner surface, and the center line of the second ear hole is set along the width direction of the watch strap; the middle bead has a fourth mounting hole at the middle part along the length direction of the watch strap, and the fourth mounting hole penetrates through both sides of the middle bead along the width direction of the watch strap; each bead assembly includes a first connecting bolt, and the middle bead and the side beads are connected together by the first connecting bolt, the first connecting bolt passes through the fourth mounting hole and its two ends are respectively inserted into the second ear holes of the two side beads.

[0016] As a further improvement of this utility model, each of the side beads has a third ear hole on its inner surface, the third ear hole being located between the first ear hole and the second ear hole, and the center line of the third ear hole being arranged along the width direction of the watch strap; each of the bead assembly includes a second connecting bolt, the two ends of the second connecting bolt being respectively inserted into the third ear holes of the two side beads, and the end face of the rear end of the middle bead being located in front of the second connecting bolt; the front end face of the middle bead has a through groove arranged along the width direction of the watch strap, and when the two bead assemblies are assembled together, the second connecting bolt is embedded in the through groove of the middle bead of the adjacent bead assembly.

[0017] This utility model also provides a watch, including a dial and a double-press quick-release watch strap as described above.

[0018] The present invention has the following advantages: by using two sliding parts to drive the telescopic nail to slide in the first mounting hole, the first nail head is retracted into the first mounting hole, thereby enabling the rapid assembly and disassembly of adjacent beads, and the assembly structure is relatively simple. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the double-press quick-release watch strap provided in an embodiment of this utility model.

[0020] Figure 2 This is an exploded structural diagram of the beaded component in the double-press quick-release watch strap provided in this embodiment of the utility model.

[0021] Figure 3 This is an exploded structural diagram of the quick-release connecting component in the double-press quick-release watch strap provided in this embodiment of the utility model.

[0022] Figure 4 This is a schematic diagram of the connection structure between the side bead and the center bead of the double-press quick-release watch strap provided in this embodiment of the utility model.

[0023] Figure 5 This is an assembly diagram of adjacent beaded components in a double-press quick-release watch strap provided in this embodiment of the utility model.

[0024] Figure 6 This is a cross-sectional structural diagram of the disassembly and assembly of adjacent bead components in a double-press quick-release watch strap provided in this embodiment of the utility model. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0026] Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components by differences in name, but by differences in function. The term "comprising" as used throughout this specification and claims is an open-ended term and should be interpreted as "comprising but not limited to". "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0027] In the description of the application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.

[0028] In the description of this application, unless otherwise expressly specified and limited, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more; unless otherwise specified or explained, the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] This utility model's double-press quick-release watch strap can be applied to metal (e.g., stainless steel) watch straps, which can be fixed to the watch case and allow the watch to be worn. Figure 1As shown, the double-press quick-release watchband includes multiple bead assemblies 10, and these multiple bead assemblies 10 extend along the length of the watchband (e.g., ...). Figure 1 (As indicated by the middle arrow X) are connected sequentially. The above-mentioned double-press quick-release watchband allows for the assembly and disassembly of the bead assembly 10 without the need for tools, thus making it convenient and simple to adjust the length of the watchband.

[0030] like Figures 2-3 As shown, each of the above-mentioned beaded components 10 includes a central bead 11, a quick-release connecting component, and two side beads 12. Similar to the beaded components of existing watch straps, the two side beads 12 are arranged along the width direction of the watch strap (e.g., ...). Figure 1 The beads (in the direction indicated by the middle arrow Y) are arranged side by side at intervals. The center bead 11 is located between the two side beads 12, and the rear end of the center bead 11 is connected to the front end of each of the two side beads 12. That is, in the length direction of the watch strap, at least a portion of the center bead 11 protrudes beyond the two side beads 12, and a clearance 15 is formed between the two side beads 12 for the center bead 11 of the adjacent bead assembly 10 to be inserted. Figure 4 As shown.

[0031] Each side bead 12 has a first lug hole 121 on its inner rear surface (i.e., the surfaces of the two side beads 12 facing each other), and the center line of the first lug hole 121 is set along the width direction of the watch strap. The front end of the middle bead 11 (i.e., the part protruding from the side beads 12) has a first mounting hole 111 and two second mounting holes 112, wherein the first mounting hole 111 penetrates through both sides of the middle bead 11 along the width direction of the watch strap, and the two second mounting holes 112 respectively penetrate from the lower surface of the middle bead 11 to the first mounting hole 111, and the second mounting hole 112 is an oblong hole with its major axis set along the width direction of the watch strap, that is, the size of the second mounting hole 112 in the width direction of the watch strap is larger than its size in the length direction of the watch strap. Those skilled in the art will understand that, for ease of processing, the cross-section of the first lug hole 121 and the first mounting hole 111 can both be circular.

[0032] The quick-release connection assembly includes a compression spring 131, two locking pins 132, two telescopic pins 133, and two sliding pins 134. Each telescopic pin 133 has an axial first pin head 1331 at its leading end and an axial blind hole at its trailing end. That is, the first pin head 1331 and the blind hole are located at the two ends of the telescopic pin 133, respectively. Each telescopic pin 133 has a radial third mounting hole 1332 (at a location other than the first pin head 1331). Each locking pin 132 has an axial second pin head 1321 at its leading end.

[0033] Two locking pins 132 are coaxially arranged in the first mounting hole 111 of the middle ball 11 with the second pin heads 1321 facing each other. A compression spring 131 is installed between the two locking pins 132, and the two ends of the compression spring 131 abut against the two locking pins 132 respectively. The tail ends of the two telescopic pins 133 are inserted into the first mounting hole 111 from the openings at both ends of the first mounting hole 111 until the second pin head 1321 is inserted into the blind hole. The sliding pin 134, which is inserted through the second mounting hole 112 into the third mounting hole 1332, limits the first mounting hole 111. That is, the compression spring 131, the two locking pins 132 and the two telescopic pins 133 are coaxially arranged in the first mounting hole 111. Those skilled in the art will understand that the radial dimensions of the main body portions of the compression spring 131, the locking pin 132, and the telescopic pin 133 are adapted to the radial dimensions of the first mounting hole 111 (e.g., slightly smaller than the radial dimensions of the first mounting hole 111) so as to facilitate assembly while preventing wobbling within the first mounting hole 111.

[0034] Because the second mounting hole 112 is an oblong hole, the sliding pin 134 can slide within the second mounting hole 112, and consequently, the telescopic pin 133 can slide within the first mounting hole 111 along the width direction of the watch strap. Figure 6 As shown, when the sliding pin 134 is pushed against the outer end of the second mounting hole 112 by the compression spring 131 and the locking pin 132, the first pin head 1331 protrudes from the side surface of the middle bead 11; when the sliding pin 134 abuts against the inner end of the second mounting hole 112 (pushed by external force), the first pin head 1331 retracts into the first mounting hole 111. The front end of the middle bead 11 is assembled with the adjacent bead assembly 10 by embedding the two first pin heads 1331 into the first ear hole 121 on the side bead 12 of the adjacent bead assembly 10.

[0035] Thus, when the bead assembly 10 needs to be assembled onto the watch strap, simply insert the center bead 11 into the clearance 15 of the previous bead assembly 10, and push the two first nail heads 1331 into the first mounting hole 111 of the center bead 11 by the inner surfaces of the two side beads 12 of the previous bead assembly 10 until the first nail heads 1331 move to the first ear hole 121 of the side bead 12. Under the elastic restoring force of the compression spring 131, the first nail heads 1331 are inserted into the first ear hole 121, thus assembling the bead assembly 10. When the bead assembly 10 needs to be removed from the watch strap, push the two sliding nails 134 toward the middle of the width direction of the watch strap until the two first nail heads 1331 retract into the first mounting hole 111 of the center bead 11. At this time, the center bead 11 can be removed from the clearance 15 between the two side beads 12 of the adjacent bead assembly 10.

[0036] The aforementioned double-press quick-release watchband uses two sliding members 134 to drive the telescopic pin 133 to slide within the first mounting hole 111 of the middle bead 11, causing the first pin head 1331 to exit the first ear hole 121 of the upper bead 12 of the adjacent bead assembly and retract into the first mounting hole 111. This enables quick assembly and disassembly of adjacent bead assemblies 10. Furthermore, since the telescopic pin 133 is limited within the first mounting hole 111 by the sliding members 134, no tools are required when assembling the quick-release connecting component to the middle bead 11, making the assembly structure relatively simple.

[0037] like Figure 3 As shown, in one embodiment of this utility model, the third mounting hole 1332 extends radially from the outer surface of the telescopic nail 133 (main body part) to a blind hole at the tail end of the telescopic nail 133, i.e., the third mounting hole 1332 is connected to the blind hole; the portion of the sliding nail 134 that inserts into the third mounting hole 1332 has a circumferential groove 1341, the width of which (i.e., the dimension along the axial direction of the sliding nail 134) is adapted to the diameter of the second nail head 1321, and when the sliding nail 134 is inserted into the third mounting hole 1332, the second nail head 1321 is embedded in the circumferential groove 1341, preventing the sliding nail 134 from exiting the third mounting hole 1332. With the above structure, the sliding nail 134 can be limited without a screwing operation. Of course, in practical applications, the sliding nail 134 can also be limited by a limiting block or the like.

[0038] In one embodiment of this utility model, the radial dimension of the main body of the locking pin 132 is greater than the radial dimension of the blind hole on the telescopic pin 133, that is, only the second pin head 1321 on the locking pin 132 can be inserted into the blind hole of the telescopic pin 133, and the length of the second pin head 1321 is less than the distance from the center of the third mounting hole 1332 to the tail end face of the telescopic pin 133; correspondingly, the end of the sliding pin 134 has a tapered surface, and when the sliding pin 134 is inserted into the third mounting hole 1332, the tapered surface pushes the second pin head 1321 (i.e., the locking pin 132) backward and compresses the compression spring 131 until the circumferential groove 1341 is opposite to the second pin head 1321. The compression spring 131 pushes the locking pin 132 to make the second pin head 1321 embed into the circumferential groove 1341, so that the locking pin 132 can lock the sliding pin 134 axially and prevent the sliding pin 134 from exiting the third mounting hole 1332. With the above structure, the sliding nail 134 can be assembled without any tools.

[0039] In one embodiment of this utility model, for ease of operation, the head end of the sliding pin 134 has a mushroom head 1342. The radial dimension of the mushroom head 1342 is larger than the radial dimension of the main body of the sliding pin 134, and in the length direction of the watch strap, the size of the mushroom head 1342 is larger than the size of the second mounting hole 112, meaning that the mushroom head 1342 cannot be inserted into the second mounting hole 112. Correspondingly, the front end of the lower surface of the middle bead 11 has two grooves 113. Each second mounting hole 112 extends from the bottom of the groove 113 to the first mounting hole 111, and the depth of the groove 113 is greater than or equal to the height of the mushroom head 1342 of the sliding pin 134. In this way, the mushroom head 1342 can be recessed into the lower surface of the middle bead 11 or flush with the lower surface of the middle bead 11, ensuring comfortable wear of the watch strap.

[0040] In one embodiment of this utility model, guide grooves 122 extending to the inner side are formed on the inner side of the end face of the rear end of the two side beads 12. The bottom wall of the guide groove 122 can be sloping (i.e., the inclined surface connecting the end face of the rear end of the side bead 12 and the inner surface). For example, the angle between the bottom wall of the guide groove 122 and the length direction of the watch strap is between 40-50°. When the middle bead 11 is assembled to the adjacent bead assembly 10, the free ends of the two first nail heads 1331 are embedded in the guide grooves 122 of the two side beads 12. Under the push of the guide grooves 122, the two telescopic nails 133 and the two locking nails 132 slide inward in the first mounting hole 111 and push the compression spring 131 to compress. When the first nail head 1331 slides to the first ear hole 121, the compression spring 131 pushes the locking nail 132 and the telescopic nail 133 through its elastic restoring force, so that the first nail head 1331 is embedded into the first ear hole 121, thereby connecting the adjacent beaded assemblies 10. Those skilled in the art will understand that the center of the guide groove 122 and the center of the first ear hole 121 are located on the same plane to facilitate the sliding of the first nail head 1331 into the first ear hole 121.

[0041] In one embodiment of this utility model, to facilitate the sliding of the first nail head 1331 on the inner surface of the guide groove 122 and the side bead 12, the free end of the first nail head 1331 has a conical surface. Similarly, to facilitate the sliding nail 134 pushing the locking nail 132 towards the compression spring 131, the free end of the second nail head 1321 also has a conical surface.

[0042] In one embodiment of this invention, in each bead assembly 10, from the rear end of the side bead 12 to the first ear hole 121, the distance between the inner surfaces of the two side beads 12 gradually decreases to match the width of the center bead 11. That is, the clearance 15 between the two side beads 12 is trumpet-shaped. Specifically, from the rear end of the side bead 12 to the first ear hole 121, the angle between the inner surface of each side bead 12 and the length direction of the watch strap is 2-5°. This structure facilitates the insertion of the center bead 11 of adjacent bead assemblies 10 between the two side beads 12.

[0043] like Figure 4 As shown, in one embodiment of the present invention, each side bead 12 has a second ear hole 124 at the front part along the length direction of the watch strap on the inner surface of its inner side, and the center line of the second ear hole 124 is arranged along the width direction of the watch strap; correspondingly, the middle bead 11 has a fourth mounting hole 115 at the middle part along the length direction of the watch strap, and the fourth mounting hole 115 penetrates through both sides of the middle bead 11 along the width direction of the strap; each bead assembly 10 also includes a first connecting bolt, and the middle bead 11 and the side bead 121 are connected together by the first connecting bolt, which passes through the fourth mounting hole 115 and is inserted into the second ear hole 124 of the two side beads 12 at both ends respectively.

[0044] To avoid gaps between adjacent bead assemblies after assembly, in one embodiment of this invention, each side bead 12 has a third ear hole 123 on its inner surface. This third ear hole 123 is located between the first ear hole 121 and the second ear hole 124, and its center line is aligned with the width of the watchband. Each bead assembly 10 includes a second connecting bolt 142, with both ends inserted into the third ear holes 123 of the two side beads 12, and the rear end face of the center bead 11 located in front of the second connecting bolt 142. Specifically, the second connecting bolt 142 and the side beads 12 can be connected using a tight-fitting method. Furthermore, the front end face of the center bead 11 has a through groove 114 aligned with the width of the watchband, and when two bead assemblies 10 are assembled together, the second connecting bolt 142 is embedded in the through groove 114 of the center bead 11 of the adjacent bead assembly 10. This method avoids excessive gaps between adjacent bead assemblies 10 in the watchband, improving the consistency of the watchband.

[0045] This utility model also provides a watch, including a dial and a double-press quick-release watch strap as described above.

[0046] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A double-press quick-release watch strap, characterized in that, It includes multiple bead assemblies connected sequentially along the length of the watch strap. Each bead assembly includes a center bead, a quick-release connection assembly, and two side beads, with the rear end of the center bead connected between the front ends of the two side beads arranged side by side. Each of the side beads has a first ear hole on the inner surface of its rear end, and the center line of the first ear hole is set along the width direction of the watch strap; the front end of the middle bead has a first mounting hole and two second mounting holes, the first mounting hole penetrates through both sides of the middle bead along the width direction of the watch strap, and the two second mounting holes are respectively penetrated from the lower surface of the middle bead to the first mounting hole, and the second mounting holes are waist-shaped holes with their long axis set along the width direction of the watch strap; The quick-release connection assembly includes a compression spring, two locking pins, two telescopic pins, and two sliding pins. Each telescopic pin has an axial first pin head at its leading end, an axial blind hole at its trailing end, and a radial third mounting hole. Each locking pin has an axial second pin head at its leading end. Two locking pins are coaxially mounted in the first mounting hole of the middle bead with their second pin heads facing away from each other. The compression spring is installed between the two locking pins. The tail ends of the two telescopic pins are inserted into the first mounting hole from the openings at both ends, until the second pin head is inserted into the blind hole. The telescopic pin is then limited in the first mounting hole by a sliding pin inserted into the third mounting hole through the second mounting hole. When the sliding pin is pushed against the outer end of the second mounting hole by the compression spring and the locking pin, the first pin head protrudes from the side surface of the middle bead. When the sliding pin abuts against the inner end of the second mounting hole, the first pin head retracts into the first mounting hole. The front end of the middle bead is assembled with the adjacent bead assembly by embedding the two first pin heads into the first ear holes on the side bead of the adjacent bead assembly.

2. The double-press quick-release watch strap according to claim 1, characterized in that, The third mounting hole extends radially from the outer surface of the telescopic nail into the blind hole; the portion of the sliding nail inserted into the third mounting hole has a circumferential groove, the width of which is adapted to the diameter of the second nail head, and when the sliding nail is inserted into the third mounting hole, the second nail head is embedded in the circumferential groove, preventing the sliding nail from exiting the third mounting hole.

3. The double-press quick-release watch strap according to claim 2, characterized in that, The radial dimension of the main body of the locking pin is greater than the radial dimension of the blind hole, and the length of the second pin head is less than the distance from the center of the third mounting hole to the end face of the telescopic pin. The end of the sliding pin has a tapered surface, and when the sliding pin is inserted into the third mounting hole, the tapered surface pushes the locking pin backward and compresses the compression spring until the circumferential groove is opposite to the second pin head. The compression spring pushes the locking pin to make the second pin head embed into the circumferential groove.

4. The double-press quick-release watch strap according to claim 3, characterized in that, The sliding pin has a mushroom head at its head, and the size of the mushroom head in the length direction of the watch strap is greater than the size of the second mounting hole in the length direction of the watch strap; the front end of the lower surface of the middle bead has two grooves, each of the second mounting holes extends from the bottom of the groove to the first mounting hole, and the depth of the groove is greater than or equal to the height of the mushroom head of the sliding pin.

5. The double-press quick-release watch strap according to claim 1, characterized in that, The inner side of the end face of each of the two side beads is formed with a guide groove extending to the inner side. When the middle bead is assembled to the adjacent bead assembly, the free ends of the two first nail heads are embedded in the guide grooves of the two side beads and, under the push of the guide grooves, the two telescopic nails and the two locking nails slide inward in the first mounting hole and push the compression spring to compress.

6. The double-press quick-release watch strap according to claim 5, characterized in that, The free ends of the first and second nail heads each have conical surfaces.

7. The double-press quick-release watch strap according to claim 1, characterized in that, In each of the beaded assemblies, from the rear end of the side bead to the first ear hole, the distance between the inner surfaces of the two side beads gradually decreases to match the width of the middle bead.

8. The double-press quick-release watch strap according to claim 1, characterized in that, Each of the side beads has a second ear hole at the front part along the length direction of the watch strap on its inner surface, and the center line of the second ear hole is set along the width direction of the watch strap; the middle bead has a fourth mounting hole at the middle part along the length direction of the watch strap, and the fourth mounting hole penetrates through both sides of the middle bead along the width direction of the watch strap; each bead assembly includes a first connecting bolt, and the middle bead and the side beads are connected together by the first connecting bolt, the first connecting bolt passes through the fourth mounting hole and its two ends are respectively inserted into the second ear holes of the two side beads.

9. The double-press quick-release watch strap according to claim 8, characterized in that, Each of the edge beads has a third ear hole on its inner surface, the third ear hole being located between the first ear hole and the second ear hole, and the center line of the third ear hole being arranged along the width direction of the watch strap; each of the bead assembly includes a second connecting bolt, the two ends of the second connecting bolt being inserted into the third ear holes of the two edge beads respectively, and the end face of the rear end of the center bead being located in front of the second connecting bolt; the front end face of the center bead has a through groove arranged along the width direction of the watch strap, and when two bead assemblies are assembled together, the second connecting bolt is embedded in the through groove of the center bead of the adjacent bead assembly.

10. A watch, characterized in that, Includes the dial and the double-press quick-release strap as described in any one of claims 1-9.

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