A double-press driven rotary clasp, watchband and watch

Abstract

A kind of double press drive rotary lock buckle, including lower disassembly plate, upper disassembly plate, lock catch assembly and face cover, lower disassembly plate one end is equipped with two limit structures, limit structure includes the locking piece with limiting protrusion fixed on lower disassembly plate, the limit slot in the lower locking piece;Upper disassembly plate one end is hinged with lower disassembly plate, and the other end of upper disassembly plate is equipped with two lugs, the outer side of lug is equipped with sliding slot, and the sliding slot is equipped with the through hole in the inner side of lug;Lock catch assembly includes press and rotary switch, press is elastically connected with sliding slot and can slide in sliding slot, and press is equipped with limiting push part;Rotary switch is rotationally engaged with lug and includes the first part that protrudes through hole and is embedded in limit slot, the second part in sliding slot and with limiting push part abut;When press press, rotary switch is swung to make the first part leave limit slot;Face cover is hinged with two lugs, and the lower surface of face cover is equipped with locking bolt.It also discloses watchband and watch comprising the above-mentioned watchband.

Description

Technical Field

[0001] This utility model relates to the field of watch technology, and in particular to a watch buckle, watch strap and watch with a double-press driven rotating lock. Background Technology

[0002] Depending on the material and shape, watch straps are mainly divided into steel straps composed of several links and one-piece non-steel straps. Non-steel straps consist of two sections that connect to the watch head, connected by a buckle at the end of at least one section. Currently, buckles used for connecting non-steel straps mainly include pin buckles, folding buckles, butterfly buckles, and hook buckles. Among these, folding buckles, due to their ability to protect the strap and extend its lifespan without requiring it to be removed after bending, are a popular design for non-steel strap connections, suitable for scenarios where watches need to be frequently put on and taken off. Chinese utility model patent (CN 222815419 U) discloses a buckle, strap, and wearable device, which includes a first folding component, a second folding component, a mounting base, and a spring-loaded buckle assembly. One end of the first folding component is fixed to the mounting base, and the other end of the first folding component is rotatably connected to one end of the second folding component. The other end of the second folding component is connected to the mounting base via the spring-loaded buckle assembly. The first and second parts of the snap clasp assembly can be locked or disengaged, allowing the first and second folding parts to remain closed or open. However, since the clasp engages in its thickness direction, and the snap clasp assembly is located in that direction, the clasp occupies a significant amount of space. Consequently, when the watch is worn, the side of the clasp closest to the wrist protrudes and presses against the wrist, causing discomfort and affecting the user experience. Utility Model Content

[0003] Therefore, it is necessary to provide a watch buckle, watch strap, and watch with a double-press driven rotating lock to address the above-mentioned shortcomings and solve the problem of insufficient wearing experience caused by the excessive thickness of the buckle.

[0004] A watch clasp with a double-press driven rotary latch for connecting a first watch strap and a second watch strap, comprising:

[0005] The lower plate is connected to the first watch strap at one end. Two limiting structures are provided on the lower plate near the first watch strap. The limiting structure includes a locking component fixed to the upper surface of the lower plate and adjacent to the side of the lower plate, and a limiting slot located below the locking component, penetrating the side of the lower plate and communicating with the area below the locking component. The locking component has a limiting protrusion corresponding to the limiting slot.

[0006] The upper disassembly plate has one end hinged to the end of the lower disassembly plate away from the first watch strap. The other end of the upper disassembly plate is provided with two lugs that correspond to and fit the two opposite sides of the lower disassembly plate when the upper and lower disassembly plates are closed. The outer side of the lugs is provided with a sliding groove, and the bottom surface of the sliding groove is provided with a through hole that penetrates the inner side of the lugs.

[0007] The locking assembly includes a push button and a rotary switch that insert into a slide groove. The push button is elastically connected to the bottom surface of the slide groove and can slide relative to a lug between a first position and a second position along the width direction of the upper disassembly plate. A limiting push portion is provided on the side of the push button adjacent to the through hole. The rotary switch is rotatably engaged with the lug. The rotary switch includes a first part that extends out of the through hole and is embedded in a limiting groove and abuts against the lower surface of a limiting protrusion when the upper and lower disassembly plates are closed, and a second part that is located in the slide groove and abuts against the limiting push portion. When the push button is pressed, it pushes the rotary switch to swing, so that the first part swings and moves away from the limiting groove and the limiting protrusion.

[0008] The cover is located above the upper panel and is hinged to two lugs. A channel for threading a second watch strap is formed between the cover and the upper panel, and the lower surface of the cover is provided with a locking bolt for inserting a buckle eye into the second watch strap.

[0009] In one embodiment, the lug is provided with a first through hole that penetrates the upper and lower surfaces of the lug and communicates with the slide groove, a second through hole that penetrates the upper and lower surfaces of the lug and communicates with the through hole, and a first spring groove that is provided on the bottom surface of the slide groove and located on the side of the first through hole facing away from the second through hole.

[0010] The pressing plate has a guide through hole that penetrates its upper and lower surfaces and corresponds to the first through hole. The guide through hole extends along the width direction of the upper disassembly plate. The limiting and pushing part is located on one side of the guide through hole. On the other side of the guide through hole, a second spring groove corresponding to the first spring groove is opened on the side adjacent to the slide groove opening.

[0011] The rotary switch has a shaft hole that penetrates its upper and lower surfaces and corresponds to the second through hole, and the side of the rotary switch has a mounting groove / hole that communicates with the shaft hole.

[0012] The watch buckle also includes a first limiting pin, a second limiting pin, a spring, and a torsion spring. The first limiting pin passes through a first through hole and a guide through hole and is fixedly connected to a lug. The second limiting pin passes through a second through hole and a shaft hole and is fixedly connected to a lug. One end of the spring is inserted into a first spring groove and abuts against the bottom surface of the first spring groove. The other end of the spring is inserted into a second spring groove and abuts against the bottom surface of the second spring groove. The torsion spring is embedded in a mounting groove / hole and sleeved on the second limiting pin. One end of the torsion spring is fixedly connected to the second limiting pin, and the other end of the torsion spring abuts against the inner wall of the mounting groove / hole.

[0013] In one embodiment, a positioning ring is provided on the upper edge and lower edge of the shaft hole on the rotary switch. The positioning ring is connected to the second through hole, and the end face of the positioning ring abuts against the edge of the second through hole.

[0014] In one embodiment, the rotary switch has a platform at one end adjacent to the through hole for forming the first part. The upper surface of the platform is a plane that abuts against the lower surface of the limiting protrusion. The lower surface of the platform is a first inclined surface, and the thickness of the platform gradually increases along the direction from the bottom surface of the slide groove to the opening of the slide groove. The upper surface of the limiting protrusion is a second inclined surface, and the thickness of the limiting protrusion gradually decreases along the direction from the middle of the lower disassembly plate to the side of the lower disassembly plate.

[0015] In one embodiment, the second part is formed on the side of the rotary switch adjacent to the limiting push part, the second part being a continuous multi-segment folded surface, and the limiting push part being a multi-segment inclined surface.

[0016] In one embodiment, the outer side of the lug is provided with a positioning groove, which is located on the side of the slide groove where the upper and lower disassembly plates are connected; the cover includes a panel and two lugs fixed to the lower surface of the panel and arranged opposite to each other, the locking bolt is located between the two lugs and is fixedly connected to the lower surface of the panel, the lugs include a flat part located above the pressing part and an ear part located on the flat part adjacent to the positioning groove and extending in the direction away from the upper surface of the panel, the ear part is provided with a third through hole corresponding to and communicating with the positioning groove; the buckle also includes a telescopic pin, the telescopic pin includes a large-diameter part inserted into the positioning groove and a small-diameter part inserted into the third through hole, the large-diameter part is received in the positioning groove, and the maximum length of the telescopic pin is greater than the depth of the positioning groove.

[0017] In one embodiment, the limiting structure further includes a recessed groove formed on the upper surface of the lower disassembly plate and extending through the side of the lower disassembly plate. The recessed groove is located above the limiting slot and communicates with the limiting slot. The locking member is embedded in the recessed groove and connected to the lower disassembly plate screw. The limiting slot has a V-shaped, U-shaped or arc-shaped structure.

[0018] In one embodiment, the lower disassembly plate has a connecting protrusion at one end adjacent to the first watch strap and two fins located on both sides of the connecting protrusion and extending along the width direction of the lower disassembly plate. The watch buckle also includes a connecting rod that passes through the connecting protrusion and connects with the first watch strap. The connecting rod and the fins are spaced apart and a clearance space is formed between the connecting rod and the fins. The lower disassembly plate has an installation notch at one end away from the connecting rod, and the upper disassembly plate has an end away from the lug that is inserted into the installation notch and hinged to the lower disassembly plate.

[0019] This utility model also discloses a watch strap, which includes the above-mentioned double-press driven rotating latch buckle.

[0020] This utility model also discloses a watch that includes the aforementioned double-press driven rotating lock clasp.

[0021] The watch buckle, watch strap, and watch implementing this utility model of double-press driven rotary lock are achieved by setting a locking element and a limiting groove on the side edge of the lower release plate, and setting a button and a rotary switch driven by the button on the upper release plate. When the buckle is folded, the first part of the rotary switch is embedded between the limiting groove and the limiting protrusion, and is held in the limiting groove under the constraint of the limiting protrusion, realizing the mutual constraint between the upper and lower release plates, preventing the buckle from opening on its own. Only by pressing the button, the button drives the rotary switch to rotate and causes the first part to leave between the limiting groove and the limiting protrusion, thereby releasing the constraint of the lower release plate on the upper release plate and realizing the opening of the buckle. The locking parts of the upper and lower release plates are located on the side of the buckle (in the width direction of the buckle), which helps to reduce the space occupied by the buckle in its thickness direction and allows for a thinner and lighter design of the buckle. This solves the problem of discomfort caused by the buckle protruding and pressing against the wrist, thus improving the user experience. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the buckle in a folded state in one embodiment of the present invention;

[0023] Figure 2 This is a perspective view of the buckle in a folded state in one embodiment of the present invention;

[0024] Figure 3 This is a cross-sectional structural diagram of the buckle in a folded state in one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the buckle in the open state in one embodiment of the present invention;

[0026] Figure 5 This is a perspective view of the buckle in the open state in one embodiment of the present invention;

[0027] Figure 6 This is a cross-sectional structural diagram of the buckle in the open state in one embodiment of the present invention;

[0028] Figure 7 This is a schematic cross-sectional view of the structure in its natural state in one embodiment of the present invention;

[0029] Figure 8 This is a cross-sectional structural diagram of the pressed state in one embodiment of the present invention;

[0030] Figure 9 This is an exploded view of the buckle in one embodiment of the present invention;

[0031] Figure 10 This is a partial structural diagram of the upper detachment plate in one embodiment of the present invention;

[0032] Figure 11 This is a schematic diagram of the locking mechanism in one embodiment of the present invention;

[0033] Figure 12 This is a schematic diagram of the rotary switch in one embodiment of the present invention. Detailed Implementation

[0034] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0035] Example 1

[0036] Please combine Figure 1 and Figure 4This utility model discloses a watch clasp with a double-press driven rotating latch. This clasp is used to connect two sections of a watch strap, allowing the strap to surround and restrain the wearer's wrist for wearing the watch. The watch strap includes a first strap and a second strap; that is, the clasp connects the first strap and the second strap. In this embodiment, the watch buckle includes a lower release plate 100, an upper release plate 200, a locking assembly, and a faceplate 300. One end of the lower release plate 100 is connected to the first watch strap. Two limiting structures are provided on the lower release plate 100 near the first watch strap. One end of the upper release plate 200 is hinged to the end of the lower release plate 100 away from the first watch strap. The other end of the upper release plate 200 is provided with two lugs 210 that correspond to and fit the two opposite sides of the lower release plate 100 when the upper release plate 200 and the lower release plate 100 are closed. The faceplate 300 is located above the upper release plate 200 and is hinged to the two lugs 210. A channel for threading a second watch strap is formed between the faceplate 300 and the upper release plate 200. The lower surface of the faceplate 300 is provided with a locking bolt 310 for inserting a buckle eye of the second watch strap. In this embodiment, the first watch strap, lower detachment plate 100, upper detachment plate 200, and faceplate 300 are connected sequentially. Since the lower detachment plate 100 is hinged to the upper detachment plate 200 and the faceplate 300 is hinged to the lug 210, the clasp can be folded by rotating the upper detachment plate 200 and pressing it against the lower detachment plate 100, utilizing the cooperation between the locking assembly and the upper limit structure of the lower detachment plate 100. After the second watch strap passes through the channel, the faceplate 300 is rotated and pressed against the second watch strap, causing the locking bolt 310 to pass through the buckle eye of the second watch strap, thus securing the second watch strap so that the watch can be worn on the consumer's wrist. When it is necessary to remove the watch, simply release the constraint between the clasp assembly and the limiting structure, pull the upper release plate 200 away from the lower release plate 100 to open the clasp, then lift the faceplate 300 so that the locking bolt 310 leaves the buckle of the second strap, and the second strap can be pulled out from the channel to remove the watch.

[0037] Please combine further Figure 1-12The limiting structure includes a locking member 400 fixed to the upper surface of the lower disassembly plate 100 and adjacent to the side of the lower disassembly plate 100, and a limiting slot 410 located below the locking member 400, penetrating the side of the lower disassembly plate 100 and communicating with the area below the locking member 400. The locking member 400 has a limiting protrusion 420 corresponding to the limiting slot 410. In this embodiment, the edge of the locking member 400 is flush with the side edge of the lower disassembly plate 100 to avoid interference between the locking member 400 and the inner side of the lug 210 when the upper disassembly plate 200 is pressed down, thus ensuring smooth downward pressing of the upper disassembly plate 200. A sliding groove 211 is provided on the outer side of the lug 210, and a through hole 212 penetrating the inner side of the lug 210 is provided on the bottom surface of the sliding groove 211. The outer side of the lug 210 refers to the side of the lug 210 facing away from the area between the two lugs 210, while the inner side of the lug 210 refers to the side of the lug 210 located in the area between the two lugs 210. The groove 211 on the lug 210 provides a receiving space for the locking assembly, while the through hole 212 provides a channel for the locking assembly and the limiting structure to cooperate with each other.

[0038] The locking assembly includes a button 500 inserted into a slide groove 211 and a rotary switch 600. The button 500 is elastically connected to the bottom surface of the slide groove 211 and can slide relative to the lug 210 between a first position and a second position along the width direction of the upper release plate 200. In this embodiment, a portion of the button 500 is located inside the slide groove 211, and another portion of the button 500 is located outside the slide groove 211 to provide a pressing portion for the consumer to actuate the button 500. The button 500 is limited to the lug 210 along the width direction of the upper release plate 200, so that the button 500 can slide relative to the lug 210 along the width direction of the upper release plate 200 under the action of external thrust, while limiting the sliding range of the button 500 between the first position and the second position to prevent the button 500 from falling off the lug 210 and ensure the stability of the watch buckle structure. A limiting abutment portion 510 is provided on one side of the button 500 adjacent to the through hole 212. The limiting abutment portion 510 is a multi-segmented inclined surface (or multi-segmented folded surface) in an approximately arc shape. The limiting abutment portion 510 is used to provide a mating part between the button 500 and the rotary switch 600, and at the same time accommodates the rotation of the rotary switch 600. The rotary switch 600 is rotatably engaged with the lug 210. The rotary switch 600 includes a first part 610 that extends out of the through hole 212 and is embedded in the limiting groove 410 and abuts against the lower surface of the limiting protrusion 420 when the upper disassembly plate 200 and the lower disassembly plate 100 are closed, and a second part 620 that is located in the slide groove 211 and abuts against the limiting abutment portion 510. In this embodiment, the lower surfaces of the limiting slot 410 and the limiting protrusion 420 together form a limiting space for limiting the first part 610 of the rotary switch 600. By allowing the limiting slot 410 to penetrate the side of the lower disassembly plate 100, a channel is provided for the first part 610 of the rotary switch 600 to enter or leave the limiting space. During the use of the watch buckle, when the button 500 is pressed, it pushes the rotary switch 600 to swing, causing the first part 610 to swing and leave the limiting slot 410 and the limiting protrusion 420, thereby releasing the constraint of the limiting structure on the rotary switch 600 and the constraint of the lower disassembly plate 100 and the upper disassembly plate 200, so that the watch buckle can be opened. It should be noted that in this embodiment, the two limiting structures on the lower disassembly plate 100 are symmetrical to each other and correspond one-to-one with the two rotary switches 600 that extend into the inner side of the two lugs 210 on the upper disassembly plate, so as to realize the double-sided limiting of the upper disassembly plate 200 and the lower disassembly plate 100, thereby improving the reliability of the limiting after the upper disassembly plate 200 and the lower disassembly plate 100 are folded.

[0039] During the folding process of the watch clasp, the upper detachment plate 200 is pressed down onto the lower detachment plate 100. When the latch assembly on the upper detachment plate 200 does not engage with the limiting structure on the lower detachment plate 100, the button 500 is in its natural state, one end of the rotary switch 600 extends out of the through hole 212, and the other end abuts against the limiting push part 510. When the first part 610 of the rotary switch 600 abuts against the upper surface of the limiting protrusion 420, as the upper detachment plate 200 is pressed down, the first part 610 swings under the action of the limiting protrusion 420, so that the first part 610 slides from the edge of the limiting slot 410 into the limiting slot 410 during the pressing process. The first part 610 is thus held in the limiting slot 410 under the joint constraint of the bottom surface of the limiting slot 410 and the lower surface of the limiting protrusion 420, realizing the mutual constraint between the upper detachment plate 200 and the lower detachment plate 100 to complete the folding of the watch clasp. When the clasp needs to be opened, simply press the two buttons 500 on both sides of the upper release plate 200 simultaneously, causing the buttons 500 to move towards the bottom surface of the slide groove 211. During this process, the elastic connecting piece between the buttons 500 and the bottom surface of the slide groove 211 is compressed. At the same time, the buttons 500 push the rotary switch 600, causing the rotary switch 600 to swing. Simultaneously, the second part 620 abuts against the limiting push part 510. When the rotary switch 600 swings until the first part 610 is completely away from the limiting groove 410, the constraint of the limiting protrusion 420 on the rotary switch 600 is released. At this time, pull the upper release plate 200 away from the lower release plate 100 and lift the face cover 300 so that the locking bolt 310 disengages from the buckle eye of the second strap, thus opening the clasp.

[0040] The lower release plate 100 provides support for the upper release plate 200 and limits the upper release plate 200 by providing a limiting structure that cooperates with the locking assembly. In this embodiment, the lower release plate 100 has a connecting protrusion 110 and two fins 120 located on both sides of the connecting protrusion 110 and extending along the width direction of the lower release plate 100. The connecting protrusion 110 extends along the length direction of the lower release plate 100, and the ends of the fins 120 protrude from the side edges of the lower release plate 100. The buckle also includes a connecting rod 130 that passes through the connecting protrusion 110 and engages with the first watch strap. The connecting rod 130 and the fins 120 are spaced apart, and a clearance space 140 is formed between the connecting rod 130 and the fins 120. That is, the connecting protrusion 110 provides a through portion for the connecting rod 130 so that the connecting rod 130 can be installed on the lower release plate 100. During watch strap assembly, two through-rings are spaced apart at one end of the first watch strap adjacent to the lower disassembly plate 100. Both ends of the connecting rod 130 pass through these two through-rings at the ends of the first watch strap to connect it to the lower disassembly plate 100. The fin plate 120 protects the ends of the first watch strap, reducing external wear and extending its service life. The clearance space 140 allows the mounting ring to pass through when it is fitted onto the connecting rod 130, thus allowing the second watch strap to be fitted onto the connecting rod 130.

[0041] Furthermore, the lower disassembly plate 100 has an installation notch 150 at one end away from the connecting rod 130, and the upper disassembly plate 200 has an end away from the lug 210 inserted into the installation notch 150 and hinged to the lower disassembly plate 100. Specifically, two connecting arms 160 are formed on both sides of the installation notch 150 on the lower disassembly plate 100, and the upper disassembly plate 200 has an end away from the lug 210 inserted into the installation notch 150 and hinged to the lower disassembly plate 100 through a connecting pin 170 that passes through the connecting arms 160 and the upper disassembly plate 200. In addition, to reduce the weight of the entire buckle, a first weight-reducing hole 180 is provided on the lower disassembly plate 100 between the limiting structure and the mounting notch 150, penetrating the upper and lower surfaces of the lower disassembly plate 100. A second weight-reducing hole 220 corresponding to the first weight-reducing hole 180 is provided on the upper disassembly plate 200. A partition strip 190 is formed between the first weight-reducing hole 180 and the mounting notch 150. The part of the upper disassembly plate 200 corresponding to the partition strip 190 is arched to form a clearance arc surface, so that while satisfying the hinge connection between the upper disassembly plate 200 and the lower disassembly plate 100, the upper disassembly plate 200 can fit with the lower disassembly plate 100 when the buckle is folded, thereby reducing the thickness of the entire buckle.

[0042] In one embodiment, the limiting structure further includes a recessed groove 101 formed on the upper surface of the lower disassembly plate 100 and extending through the side of the lower disassembly plate 100. The recessed groove 101 is located above and communicates with the limiting groove 410, and the inner contour shape of the recessed groove 101 is adapted to the outer contour shape of the locking member 400 to prevent the locking member 400 from shaking within the recessed groove 101. The locking member 400 is embedded in the recessed groove 101 and connected to the lower disassembly plate 100 by screws. Preferably, the bottom surface of the recessed groove 101 is provided with a threaded hole 102. By passing the locking member 400 through a screw 103 inserted into the threaded hole 102, the locking member 400 can be fixed in the recessed groove 101. In this embodiment, by forming a recessed groove 101 on the lower disassembly plate 100, pre-positioning of the locking member 400 before installation can be achieved, thereby reducing the installation difficulty of the locking member 400. In addition, in this embodiment, the limiting slot 410 has a V-shaped, U-shaped, or arc-shaped structure. Preferably, the limiting slot has an arc-shaped structure to provide rotation space for the first part 610 of the rotary switch 600 and limit the rotation path of the first part 610, while reducing wear between the first part 610 and the inner wall of the limiting slot 410 when the rotary switch 600 rotates.

[0043] The upper detachable plate 200 is used to install the faceplate 300 and together with the faceplate 300 defines the position of the second watch strap. In this embodiment, the shape of the area on the lower surface of the upper detachable plate 200, excluding the clearance arc surface, is adapted to the shape of the upper surface of the lower detachable plate 100, so that the upper detachable plate 200 fits against the lower detachable plate 100 after the watch buckle is folded, in order to control the thickness of the watch buckle. In one embodiment, a positioning groove 213 is provided on the outer side of the lug 210. The positioning groove 213 is located on the side of the slide groove 211 opposite to the connection between the upper detachable plate 200 and the lower detachable plate 100. The cover 300 includes a front panel 320, two ear plates 330 fixed to the lower surface of the front panel 320 and arranged opposite to each other, and a locking bolt 310 located between the two ear plates 330 and fixedly connected to the lower surface of the front panel 320. The bottom end of the locking bolt 310 has a bulge, so that when the locking bolt 310 is inserted into the buckle eye of the second watch strap, the bulge abuts against the lower edge of the buckle eye to prevent the locking bolt 310 from disengaging from the buckle eye after insertion, thus ensuring the reliability of the locking bolt 310 in limiting the second watch strap. The ear plate 330 includes a flat portion located above the press 500, and an ear portion located on the flat portion adjacent to the positioning groove 213 and extending in the direction away from the upper surface of the front panel 320. The ear portion has a third through hole 340 that communicates with the positioning groove 213. When the faceplate 300 is closed on the upper release plate 200 and the second strap is pressed tight, the lower edge of the straight portion abuts against the upper surface of the lug 210 to meet the shape requirements of the clasp. Of course, the lower edge of the straight portion can also be designed as a wavy structure or other structures as needed, which will not be elaborated here. The clasp also includes a telescopic stud 350, which includes a large-diameter portion that inserts into the positioning groove 213 and a small-diameter portion that inserts into the third through hole 340. The large-diameter portion is housed in the positioning groove, and the maximum length of the telescopic stud is greater than the depth of the positioning groove. The large-diameter portion is a hollow structure, and a compression spring is provided inside the large-diameter portion that is elastically connected to the small-diameter portion. In this way, when the small-diameter portion is subjected to external pressure, it will move into the inner cavity of the large-diameter portion to shorten the length of the entire telescopic stud 350, thereby adapting to the installation requirements of the faceplate 300. The telescopic pin 350 is designed to allow the cover 300 to be installed on the lug 210 while ensuring that the cover 300 can rotate relative to the upper disassembly plate 200 under the restriction of the telescopic pin 350.

[0044] In this embodiment, the lug 210 includes a first segment and a second segment connected to the first segment and located at the end of the lug 210. A sliding groove 211 and a through hole 212 are formed in the first segment, and a positioning groove 213 is formed in the second segment. Furthermore, the width of the first segment is greater than the width of the second segment, forming a step between the first and second segments. This allows the ear plate 330 to rotate and engage with the step when the cover 300 is hinged to the upper disassembly plate 200, thus supporting the cover 300. Preferably, in this embodiment, the step is a convex arc surface structure, and the straight portion of the ear plate 330 has a concave-convex surface structure that rotates and engages with the step, reducing wear during the rotation of the cover 300.

[0045] In one embodiment, the lug 210 has a first through hole 214 that penetrates the upper and lower surfaces of the lug 210 and communicates with the slide groove 211, a second through hole 215 that penetrates the upper and lower surfaces of the lug 210 and communicates with the through hole 212, and a first spring groove 216 that is formed on the bottom surface of the slide groove 211 and located on the side of the first through hole 214 facing away from the second through hole 215. The pressing 500 has a guide through hole 520 that penetrates its upper and lower surfaces and corresponds to the first through hole 214. The guide through hole 520 extends along the width direction of the upper disassembly plate 200. The limiting and pushing part 510 is located on one side of the guide through hole 520. On the other side of the guide through hole 520, a second spring groove 530 corresponding to the first spring groove 216 is formed on the side adjacent to the groove opening of the slide groove 211. The rotary switch 600 has a shaft hole 630 that penetrates its upper and lower surfaces and corresponds to the second through hole 215. The side of the rotary switch 600 has a mounting groove / hole 640 that communicates with the shaft hole 630. The watch buckle also includes a first limiting pin 2111, a second limiting pin 2112, a spring 2113, and a torsion spring 2114. The first limiting pin 2111 passes through the first through hole 214 and the guide through hole 520 and is fixedly connected to the lug 210. The second limiting pin 2112 passes through the second through hole 215 and the shaft hole 630 and is fixedly connected to the lug 210. One end of the spring 2113 is inserted into the first spring groove 216 and abuts against the bottom surface of the groove. The other end of the spring 2113 is inserted into the second spring groove and abuts against the bottom surface of the groove. The torsion spring 2114 is embedded in the mounting groove / hole 640 and sleeved on the second limiting pin 2112. One end of the torsion spring 2114 is fixedly connected to the second limiting pin 2112, and the other end of the torsion spring 2114 abuts against the inner wall of the mounting groove / hole 640. Preferably, in this embodiment, the guide hole 520 is a strip-shaped hole or an annular racetrack-shaped hole. Through the cooperation of the first limiting pin 2111 and the guide hole 520, the button 500 is allowed to slide within the slide groove 211 within the range between the first and second positions, while simultaneously limiting the button 500 to prevent it from disengaging from the slide groove 211 and ensuring the stability of the watch buckle structure. In this embodiment, the first position is defined as the button sliding to its maximum distance towards the bottom of the slide groove, and the second position is the button in its natural state. When the button 500 is pressed, the spring 2113 is compressed, and the button 500 presses the rotary switch 600, causing the rotary switch 600 to rotate around the second limiting pin 2112. During this process, the torsion spring 2114 twists and deforms, and the second part 620 of the rotary switch 600 abuts against the limiting push part 510. When button 500 is released, spring 2113 rebounds and pushes button 500 back to its original position. At this time, the squeezing force of button 500 on rotary switch 600 decreases, and torsion spring 2114 gradually recovers its deformation to drive rotary switch 600 to swing back.

[0046] In one embodiment, a second portion 620 is formed on the side of the rotary switch 600 adjacent to the limiting abutment portion 510. The second portion 620 is a continuous multi-segment folded surface, and the limiting abutment portion 510 is a multi-segment inclined surface. By designing the second portion 620 as a multi-segment folded surface, when the second portion 620 of the rotary switch 600 contacts the limiting abutment portion 510, the press 500 actually makes line contact or partial surface contact with the rotary switch 600, increasing the pressure on the rotary switch 600 when the press 500 is pressed. Thus, when the press 500 is pressed, the limiting abutment portion 510 will abut against the multi-segment folded surface, causing the rotary switch 600 to rotate under the pressure of the press 500.

[0047] To reduce the installation difficulty of the rotary switch 600, in one embodiment, a positioning ring 650 is provided on the upper and lower edges of the shaft hole 630 on the rotary switch 600. The positioning ring 650 communicates with the second through hole 215, and the end face of the positioning ring 650 abuts against the edge of the second through hole 215. In this way, when the rotary switch 600 is inserted into the slide groove 211, the positioning rings 650 at the top and bottom of the rotary switch 600 respectively abut against the inner wall of the through hole 212, so that the rotary switch 600 is held against the inner wall of the through hole 212 during rotation, while the rest of the rotary switch 600 is kept away from the inner wall of the through hole 212.

[0048] In addition, in one embodiment, the rotary switch 600 has a platform at one end adjacent to the through hole 212 for forming the first part 610. The upper surface of the platform is a plane that abuts against the lower surface of the limiting protrusion 420, and the lower surface of the platform is a first inclined surface 611. The thickness of the platform gradually increases along the direction from the bottom surface of the slide groove 211 to the opening of the slide groove 211. The upper surface of the limiting protrusion 420 is a second inclined surface 421, and the thickness of the limiting protrusion 420 gradually decreases along the direction from the middle of the lower disassembly plate 100 to the side of the lower disassembly plate 100. It can be understood that the shapes of the first inclined surface 611 and the second inclined surface 421 are adapted to each other. The second inclined surface 421 is used to guide the downward pressing action of the platform. In this way, when the watch buckle is folded and fastened, as the upper disassembly plate 200 is pressed down, the first inclined surface 611 will slide along the second inclined surface 421 until the platform slides into the limiting groove 410, thereby reducing the difficulty of fastening the watch buckle.

[0049] Example 2

[0050] This utility model also discloses a watch strap, which includes the aforementioned double-press driven rotary lock buckle. The strap also includes a first strap connected to the lower release plate of the buckle and a second strap for passing through a channel between the upper release plate and the faceplate. The second strap has a buckle eye for inserting a locking bolt from the faceplate. The structure of the double-press driven rotary lock buckle is exactly the same as that of the double-press driven rotary lock buckle in Embodiment 1, and will not be described again here.

[0051] Example 3

[0052] This utility model also discloses a watch, which includes the aforementioned double-press driven rotating latch clasp. The clasp includes a first strap connected to a lower release plate, a second strap for passing through a channel between an upper release plate and the faceplate, and a watch head connected to both the first and second straps. The second strap has a buckle eye for inserting a locking bolt from the faceplate. The watch head can be any watch head available on the market, including mechanical, quartz, and smartwatch heads, which will not be described further here. The structure of the double-press driven rotating latch clasp is exactly the same as that of the double-press driven rotating latch clasp in Embodiment 1, and will not be described further here.

[0053] The aforementioned double-press driven rotary lock for watch buckles, straps, and watches utilizes a locking mechanism 400 and a limiting slot 410 on the side edge of the lower disassembly plate 100, and a pressing mechanism 500 and a rotary switch 600 driven by the pressing mechanism 500 on the upper disassembly plate 200. When the buckle is folded, the first part 610 of the rotary switch 600 is embedded between the limiting slot 410 and the limiting protrusion 420, and is held within the limiting slot 410 by the constraint of the limiting protrusion 420. This achieves mutual constraint between the upper disassembly plate 200 and the lower disassembly plate 100, preventing the buckle from opening on its own; only pressing the pressing mechanism is required. Pressing button 500 drives the rotary switch 600 to rotate and causes the first part 610 to move away from the limiting slot 410 and the limiting protrusion 420, thereby releasing the constraint of the lower disassembly plate 100 on the upper disassembly plate 200 and opening the clasp. The locking parts of the upper disassembly plate 200 and the lower disassembly plate 100 are located on the side of the clasp (in the width direction of the clasp), which helps to reduce the space occupied by the clasp in its thickness direction and make the clasp thinner and lighter. This solves the problem of discomfort caused by the clasp protruding and pressing against the wrist, thus improving the user experience.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A watch clasp with a double-press driven rotary latch, used to connect a first watch strap and a second watch strap, characterized in that, include: The lower plate is connected to the first watch strap at one end. Two limiting structures are provided on the lower plate near the first watch strap. The limiting structure includes a locking component fixed to the upper surface of the lower plate and adjacent to the side of the lower plate, and a limiting slot located below the locking component, penetrating the side of the lower plate and communicating with the area below the locking component. The locking component has a limiting protrusion corresponding to the limiting slot. The upper disassembly plate has one end hinged to the end of the lower disassembly plate away from the first watch strap. The other end of the upper disassembly plate is provided with two lugs that correspond to and fit the two opposite sides of the lower disassembly plate when the upper and lower disassembly plates are closed. The outer side of the lugs is provided with a sliding groove, and the bottom surface of the sliding groove is provided with a through hole that penetrates the inner side of the lugs. The locking assembly includes a push button and a rotary switch that insert into a slide groove. The push button is elastically connected to the bottom surface of the slide groove and can slide relative to a lug between a first position and a second position along the width direction of the upper disassembly plate. A limiting push portion is provided on the side of the push button adjacent to the through hole. The rotary switch is rotatably engaged with the lug. The rotary switch includes a first part that extends out of the through hole and is embedded in a limiting groove and abuts against the lower surface of a limiting protrusion when the upper and lower disassembly plates are closed, and a second part that is located in the slide groove and abuts against the limiting push portion. When the push button is pressed, it pushes the rotary switch to swing, so that the first part swings and moves away from the limiting groove and the limiting protrusion. The cover is located above the upper panel and is hinged to two lugs. A channel for threading a second watch strap is formed between the cover and the upper panel, and the lower surface of the cover is provided with a locking bolt for inserting a buckle eye into the second watch strap.

2. The watch buckle of the double-press driven rotary lock according to claim 1, characterized in that, The lug is provided with a first through hole that penetrates the upper and lower surfaces of the lug and communicates with the slide groove, a second through hole that penetrates the upper and lower surfaces of the lug and communicates with the through hole, and a first spring groove that is provided on the bottom surface of the slide groove and located on the side of the first through hole facing away from the second through hole. The pressing plate has a guide through hole that penetrates its upper and lower surfaces and corresponds to the first through hole. The guide through hole extends along the width direction of the upper disassembly plate. The limiting and pushing part is located on one side of the guide through hole. On the other side of the guide through hole, a second spring groove corresponding to the first spring groove is opened on the side adjacent to the slide groove opening. The rotary switch has a shaft hole that penetrates its upper and lower surfaces and corresponds to the second through hole, and the side of the rotary switch has a mounting groove / hole that communicates with the shaft hole. The watch buckle also includes a first limiting pin, a second limiting pin, a spring, and a torsion spring. The first limiting pin passes through a first through hole and a guide through hole and is fixedly connected to a lug. The second limiting pin passes through a second through hole and a shaft hole and is fixedly connected to a lug. One end of the spring is inserted into a first spring groove and abuts against the bottom surface of the first spring groove. The other end of the spring is inserted into a second spring groove and abuts against the bottom surface of the second spring groove. The torsion spring is embedded in a mounting groove / hole and sleeved on the second limiting pin. One end of the torsion spring is fixedly connected to the second limiting pin, and the other end of the torsion spring abuts against the inner wall of the mounting groove / hole.

3. The watch buckle of the double-press driven rotary lock according to claim 2, characterized in that, A positioning ring is provided on the upper edge and lower edge of the shaft hole on the rotary switch. The positioning ring is connected to the second through hole, and the end face of the positioning ring abuts against the edge of the second through hole.

4. The watch buckle of the double-press driven rotary lock according to claim 2, characterized in that, The rotary switch has a platform at one end near the through hole for forming the first part. The upper surface of the platform is a plane that abuts against the lower surface of the limiting protrusion. The lower surface of the platform is a first inclined surface, and the thickness of the platform gradually increases along the direction from the bottom surface of the slide groove to the opening of the slide groove. The upper surface of the limiting protrusion is a second inclined surface, and the thickness of the limiting protrusion gradually decreases along the direction from the middle of the lower disassembly plate to the side of the lower disassembly plate.

5. The watch buckle of the double-press driven rotary lock according to claim 1, characterized in that, The second part is formed on the side of the rotary switch adjacent to the limiting push part, and the second part is a continuous multi-segment folded surface, while the limiting push part is a multi-segment inclined surface.

6. The watch buckle of the double-press driven rotary lock according to claim 1, characterized in that, The outer side of the lug is provided with a positioning groove, which is located on the side of the upper and lower disassembly plates connected to the slide groove. The cover includes a panel and two lugs fixed to the lower surface of the panel and arranged opposite to each other. The locking bolt is located between the two lugs and is fixedly connected to the lower surface of the panel. The lugs include a flat part located above the pressing part and an ear part located on the flat part adjacent to the positioning groove and extending in the direction away from the upper surface of the panel. The ear part is provided with a third through hole corresponding to and communicating with the positioning groove. The buckle also includes a telescopic pin, which includes a large-diameter part inserted into the positioning groove and a small-diameter part inserted into the third through hole. The large-diameter part is received in the positioning groove, and the maximum length of the telescopic pin is greater than the depth of the positioning groove.

7. The watch buckle of the double-press driven rotary lock according to claim 1, characterized in that, The limiting structure also includes a recessed groove formed on the upper surface of the lower disassembly plate and extending through the side of the lower disassembly plate. The recessed groove is located above the limiting slot and communicates with the limiting slot. The locking element is embedded in the recessed groove and connected to the lower disassembly plate screw. The limiting slot has a V-shaped, U-shaped or arc-shaped structure.

8. The watch buckle of the double-press driven rotary lock according to claim 1, characterized in that, The lower disassembly plate has a connecting protrusion at one end near the first watch strap and two fins located on both sides of the connecting protrusion and extending along the width direction of the lower disassembly plate. The watch buckle also includes a connecting rod that passes through the connecting protrusion and connects with the first watch strap. The connecting rod and the fins are spaced apart and a clearance space is formed between the connecting rod and the fins. The lower disassembly plate has an installation notch at one end away from the connecting rod. The upper disassembly plate has an end away from the lug that is inserted into the installation notch and connected to the lower disassembly plate hinge.

9. A watch strap, characterized in that, The watch buckle includes the double-press driven rotary latch as described in any one of claims 1-8.

10. A watch, characterized in that, The watch buckle includes the double-press driven rotary latch as described in any one of claims 1-8.

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