Buckle and watch for adjusting the tightness of the strap

Abstract

The present invention provides a watch buckle and a watch for adjusting the tightness of a watch band by pressing, the watch buckle for adjusting the tightness of the watch band by pressing comprises a buckle base and a face cover, the face cover is pivotally connected to the buckle base, the watch buckle for adjusting the tightness of the watch band by pressing comprises an elastic driving component, a locking component and a rack component for assembling to the tail end of the watch band, the rack component is provided with a sawtooth structure; the locking component is rotatably mounted in the face cover, the locking component comprises a locking component and a gear meshed with the sawtooth structure of the rack component; the elastic driving component comprises a switch member provided with a snap-on structure, the snap-on structure is snapped to the locking component and prevents the gear from rotating, and the rack component is locked and fixed, and the snap-on structure is disengaged from the locking component when the switch member is pressed. The structure of the present invention is simple and reliable, does not increase the volume of the watch buckle, reduces the influence on the designability of the appearance of the face cover, and ensures a beautiful appearance.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of wearable devices, and more specifically, to a buckle and a watch for adjusting the tightness of a strap by pressing. Background Art

[0002] A watch, also known as a wristwatch, is an instrument worn on the wrist to tell time and display the time. Watches are usually made of leather, rubber, nylon, stainless steel and other materials to make a strap to tie the dial that displays the time to the wrist.

[0003] In order to achieve adjustable tightness of the watch strap and ensure the convenience of operation, existing watches usually add a tension adjustment device for adjusting the length of the watch strap. However, since the structure of the tension adjustment device of the existing watch is relatively complicated, the existing watch integrates the tension adjustment device with the clasp, which makes the overall structure of the clasp complicated and increases the overall volume of the clasp, which not only reduces the wearing comfort, but also limits the designability of the clasp shape, so that the appearance of the clasp is affected. Summary of the invention

[0004] In order to solve the problems that the structure of the tension adjustment device of the above-mentioned conventional watches is complicated, which leads to the complication of the overall structure of the clasp, the increase of the overall volume of the clasp, the limitation of the designability of the clasp shape and the impact on the aesthetic appearance of the clasp, the embodiment of the present invention provides a clasp and a watch for adjusting the tension of the strap by pressing.

[0005] The technical solution to the above technical problem is to provide a buckle for adjusting the tightness of a watchband by pressing, comprising a buckle base and a cover, one end of the cover being pivotally fixed to the buckle base by a first pin, the buckle for adjusting the tightness of the watchband by pressing also comprising an elastic driving component, a locking component and a rack component for assembling to the tail end of the watchband, the rack component being provided with a sawtooth structure, and the sawtooth structure being arranged along the length direction of the watchband;

[0006] The locking assembly is rotatably mounted in the face cover, and the locking assembly includes a locking member and a gear meshed with the serrated structure of the rack member; the elastic driving assembly is mounted in the face cover, and the elastic driving assembly includes a switch member, and the switch member is provided with a snap structure adapted to the locking member, and the snap structure is snapped into the locking member when the switch member is in a free state and prevents the gear from rotating, so as to lock and fix the rack member, and the snap structure is disengaged from the locking member when the switch member is pressed, so as to release the gear.

[0007] Preferably, a guide groove is provided at one end of the rack member away from the watch strap, the guide groove is arranged along the length direction of the watch strap, and the two sides of the guide groove respectively have the serrated structure; a limit pin adapted to the guide groove is provided in the face cover, and at least a part of the limit pin is inserted into the guide groove.

[0008] Preferably, the surface cover comprises a cover body and a bottom plate, the bottom plate is detachably mounted in the cover body, and the elastic driving assembly and the locking assembly are respectively located between the cover body and the bottom plate;

[0009] The locking assembly includes two gears and two locking members, and each of the gears is installed in the face cover in a manner perpendicular to the face cover through one of the locking members; the two gears are distributed along a length direction perpendicular to the face cover, the rack member is located between the two gears, and the serrated structures on both sides of the guide groove of the rack member are respectively engaged with the two gears.

[0010] Preferably, both ends of the locking member are provided with pivot joints located on the axis, the cover body and the bottom plate are respectively provided with two pivot holes adapted to the pivot joints, and the two locking members are pivotally fixed in the cover by inserting the pivot joints at both ends into the pivot holes of the cover body and the bottom plate respectively;

[0011] The cover body comprises a support frame arranged in a W-shape, and the support frame is parallel to the bottom plate; the support frame is located in the center of the cover body and is arranged along the length direction of the face cover, and the two pivot holes of the cover body are respectively located at the two ends of the middle cross beam of the support frame; the limit pin is vertically fixed to the bottom plate, a limit hole is arranged in the middle of the middle cross beam, and when the bottom plate is assembled to the face cover, the end of the limit pin away from the bottom plate is matched and connected with the limit hole;

[0012] A first step and a second step are respectively provided in the middle of each locking member, the cross-sections of the first step and the second step are both square, and the second step is adapted to the snap structure; a square hole adapted to the first step is respectively provided in the center of each gear, and each gear is coaxially connected to the locking member by snapping into the first step through the square hole, and realizes synchronous rotation with the locking member through the cooperation of the square hole and the first step.

[0013] Preferably, the elastic drive assembly comprises two switch members and ear pins located in the face cover, the two switch members are respectively fixed to the side walls of the face cover in a manner that they can move along a length direction perpendicular to the face cover, and one end of the two switch members inserted into the face cover is respectively connected to the two ends of the ear pins;

[0014] Each of the switch components is provided with a connected square card slot and a clearance groove, and the buckle structure is composed of the square card slot; the clearance groove is located on the side of the square card slot away from the ear pin, and the square card slots of the two switch components are respectively clamped to the second steps of the two locking components under the pushing action of the ear pin to limit and fix the locking component and the gear.

[0015] Preferably, the cross section of the second step is larger than the cross section of the first step, and when the locking member is installed between the cover body and the bottom plate, the second step is located between the first step and the bottom plate;

[0016] The avoidance groove is larger than the square slot, and when the two switch members are pressed, the two switch members move toward the direction of the face cover and compress the ear pins, so that the second step of the locking member leaves the square slot and enters the avoidance groove.

[0017] Preferably, the push-to-adjust strap buckle also includes two driven gears and two rotating components, wherein the two driven gears are respectively rotatably mounted in the face cover through the two rotating components, and the two driven gears are respectively meshed with the two gears, and when the rack component slides along the length direction in the face cover, the two gears respectively drive the two driven gears to rotate.

[0018] Preferably, the cover body comprises a transparent member, and an opening is provided on the top surface of the cover body, and the transparent member is mounted and fixed on the opening; the locking assembly, the two driven gears and the two rotating members are all exposed to the opening.

[0019] Preferably, the buckle-making base includes a frame and a core, and the first end of the core is pivotally fixed to one end of the frame by a second pin, and the face cover is pivotally fixed to the second end of the core by a first pin; the frame has an air avoidance groove arranged along the length direction and adapted to the main body of the core, and when the core is buckled into the frame by rotating around the second pin, the main body of the core is embedded in the air avoidance groove.

[0020] An embodiment of the present invention also provides a watch, comprising a watch strap and a buckle for adjusting the tightness of the watch strap by pressing as described in any of the above items; the tail end of the watch strap has a first assembly hole, the rack component is provided with a second assembly hole adapted to the first assembly hole, and the rack component is fixedly connected to the watch strap by passing through the second assembly hole and a fastener through the second assembly hole.

[0021] The watch buckle and watch for adjusting the tightness of the watch strap by pressing the embodiment of the present invention have the following beneficial effects: by arranging the locking component and the elastic driving component in the face cover, and preventing the gear from rotating by the switch part, the rack component can be locked and fixed. The structure is simple and reliable, and the rack component can be released by pressing the switch part, so that the rack component can slide and retract in the face cover to adjust the tightness of the watch strap. The operation is convenient and fast, and the locking component and the elastic driving component will not increase the volume of the watch buckle, nor will they limit the design of the appearance of the face cover, thereby reducing the impact on the designability of the appearance of the face cover and ensuring the beautiful appearance of the watch buckle; and the method of meshing the serrated structure of the gear and the rack component not only achieves the function of adjusting the tightness of the watch strap, but also makes the appearance of the watch buckle more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the exploded structure of a buckle for adjusting the tightness of a watch strap provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure inside the buckle for adjusting the tightness of a watch strap by pressing provided by an embodiment of the present invention;

[0024] Figure 3 It is a schematic structural diagram of a cross section of a buckle for adjusting the tightness of a watch strap provided by an embodiment of the present invention;

[0025] Figure 4 The present invention is a schematic diagram of the adjustment operation of a watch buckle for adjusting the tightness of a watch strap provided by an embodiment of the present invention, wherein: Figure (a) is a schematic diagram of the operation of pressing a switch component; Figure (b) is a schematic diagram of the action of pushing a rack component to slide toward a face cover; Figure (c) is a schematic diagram of the action of pulling a rack component to slide away from the face cover; and Figure (d) is a schematic diagram of the internal structure of the watch buckle. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] like Figure 1 , which is a schematic diagram of the structure of the buckle for adjusting the tightness of a watch band provided by an embodiment of the present invention, and can be applied to the technical field of wearable devices, especially in watches. Figure 2As shown, the push-to-adjust strap buckle in this embodiment includes a buckle base 1 and a face cover 2, and one end of the face cover 2 is pivotally fixed to the buckle base 1 through a first pin shaft 3. The face cover 2 can be fastened to the buckle base 1 by rotating around the first pin shaft 3, or can be detached from the buckle base 1 by rotating around the first pin shaft 3 to increase or decrease the total length of the push-to-adjust strap buckle, thereby achieving wearing.

[0028] The above-mentioned buckle for adjusting the tightness of the strap by pressing further comprises an elastic driving component 4, a locking component 5 and a rack member 6, and the rack member 6 is used to be assembled to the tail end of the strap to achieve the connection between the buckle and the strap. In addition, the rack member 6 is provided with a sawtooth structure 61, and the sawtooth structure 61 is arranged along the length direction of the strap.

[0029] Furthermore, the locking assembly 5 includes a locking member 51 and a gear 52, and the gear 52 is rotatably mounted in the face cover 2 through the locking member 51, for example, the gear 52 is fixedly connected to the locking member 51 and rotates synchronously with the locking member 51, and the locking member 51 is pivotally fixed in the face cover 2 in a manner that it can rotate around its axial direction. Of course, the locking member 51 is preferably pivotally fixed in the face cover 2 in a manner perpendicular to the plane where the face cover 2 is located, that is, the locking member 51 can rotate around the vertical direction of the face cover 2, and at the same time, the locking member 51 can be perpendicular to the length direction of the face cover 2.

[0030] Furthermore, when the gear 52 and the locking member 51 are assembled into the face cover 2, the gear 52 is meshed with the serrated structure 61 of the rack member 6. Since the gear 52 is rotatable, the rack member 6 will synchronously drive the gear 52 to rotate when sliding in the face cover 2. In practical applications, the rack member 6 can be limited by the gear 52, so that the rack member 6 slides in a preset direction in the face cover 2 (preferably slides along the length direction of the face cover 2, which can increase the sliding stroke of the rack member 6 and thus increase the adjustment range of the tightness of the watchband), or a guide structure for limiting the rack member 6 is provided in the face cover 2, for example, a guide slot is provided on the outer wall of the rack member 6 along the length direction of the watchband, and a guide edge adapted to the guide slot is provided in the face cover 2, and the guide edge is inserted into the guide slot to realize the positioning and guiding of the rack member 6.

[0031] In particular, the elastic drive assembly 4 is installed in the cover 2, and the elastic drive assembly 4 includes a switch member 41, and the switch member 41 has a buckle structure adapted to the locking member 51. Moreover, when the switch member 41 is in a free state (i.e., the switch member 41 is not subjected to external force and is only subjected to elastic force), the buckle structure is clamped and fixed to the locking member 51, thereby preventing the gear 52 from rotating. Since the gear 52 is engaged with the sawtooth structure 61 of the rack member 6, the rack member 6 can be locked and fixed in the cover 2.

[0032] When adjusting the tightness of the strap, the switch member 41 can be pressed to disengage the buckle structure of the switch member 41 from the locking member 51, thereby releasing the gear 52, so that the rack member 6 can slide along the length of the strap in the cover 2. Figure 4 shown.

[0033] The above-mentioned buckle for adjusting the tightness of the strap is achieved by arranging the locking component 5 and the elastic driving component 4 in the face cover 2, and the switch member 41 prevents the gear 52 from rotating, so that the rack member 6 can be locked and fixed. The structure is simple and reliable, and the rack member 6 can be released by pressing the switch member 41, so that the rack member 6 can slide and retract in the face cover 2 to adjust the tightness of the strap. The operation is convenient and fast, and the locking component 5 and the elastic driving component 4 will not increase the overall volume of the buckle, nor will they limit the design of the appearance of the face cover 2, thereby reducing the impact on the designability of the appearance of the face cover 2 and ensuring the beautiful appearance of the buckle.

[0034] Furthermore, the above-mentioned push-to-adjust strap buckle adopts the method of meshing the gear 52 with the serrated structure 61 of the rack member 6, which not only achieves the function of adjusting the tightness of the strap, but also makes the appearance of the buckle more beautiful, thereby adding mechanical elements and improving the attractiveness of the appearance design.

[0035] In one embodiment of the present invention, a guide groove 62 is provided at one end of the rack member 6 away from the watch band, and the guide groove 62 is provided along the length direction of the watch band, and the two sides of the guide groove 62 respectively have a sawtooth structure 61. In addition, a limit pin 21 is provided in the face cover 2, and the limit pin 21 is adapted to the guide groove 62, and at least a part of the limit pin 21 is inserted into the guide groove 62, so as to guide the rack member 6, and at the same time limit the travel range of the rack member 6, so as to prevent the rack member 6 from slipping out of the face cover 2, or passing through the face cover 2 to the other end of the face cover 2.

[0036] In practical applications, two limit pins 21 can be provided, and the two limit pins 21 are distributed along the length direction of the face cover 2, and at least a portion of the two limit pins 21 are respectively inserted into the guide groove 62 of the rack member 6. Since the limit pin 21 is adapted to the guide groove 62, the rack member 6 can slide reliably along the length direction of the face cover 2 by being limited by the two limit pins 21. Moreover, due to the limitation of the two limit pins 21, the rack member 6 will not move in the width direction of the face cover 2, which can make the sliding of the rack member 6 more reliable and stable. Of course, when using one limit pin 21, the rack member 6 can be limited in cooperation with the gear 52, which can also make the rack member 6 slide reliably and stably along the length direction of the face cover 2.

[0037] The serrated structure 61 of the above-mentioned rack member 6 is preferably recessed inwardly, so that when the gear 52 is meshed with the serrated structure 61 of the rack member 6, the gear 52 can be used to limit the up and down directions of the rack member 6 (that is, the vertical direction of the face cover 2, which is also the vertical direction of the plane where the gear 52 is located) to prevent the rack member 6 from moving up and down and affecting the meshing connection with the gear 52.

[0038] The face cover 2 of this embodiment includes a cover body 22 and a bottom plate 23, wherein the bottom plate 23 is detachably mounted in the cover body 22, and the elastic drive assembly 4 and the locking assembly 5 are respectively located between the cover body 22 and the bottom plate 23. The bottom plate 23 can be fixed to the cover body 22 by bolts, which is convenient and quick to operate, and can improve the connection strength between the bottom plate 23 and the cover body 22, making the structure more solid and reliable. The face cover 2 can greatly reduce the difficulty of assembly and effectively improve the assembly efficiency by setting the bottom plate 23, that is, the locking assembly 5 and the elastic drive assembly 4 can be first installed on the bottom plate 23, and then assembled to the cover body 22 through the bottom plate 23, and the locking assembly 5 and the elastic drive assembly 4 are assembled and fixed to the face cover 2.

[0039] In another embodiment of the present invention, the locking assembly 5 includes two gears 52 and two locking members 51, and each gear 52 is installed in the face cover 2 in a manner perpendicular to the face cover 2 through a locking member 51, so that the two gears 52 can be rotatably assembled. The two gears 52 are distributed along the length direction perpendicular to the face cover 2, the rack member 6 is located between the two gears 52, and the sawtooth structures 61 on both sides of the guide groove 62 of the rack member 6 are respectively engaged with the two gears 52, so that the two gears 52 can be limited by the sawtooth structures 61 on both sides of the rack member 6, so that the rack member 6 does not move in the left and right directions.

[0040] Specifically, the locking member 51 is cylindrical, and has pivot joints 511 (specifically, a convex structure with a circular cross-section) at both ends of the locking member 51. The two pivot joints 511 are coaxial and coincide with the axis of the locking member 51 respectively. In this way, when the two pivot joints 511 are pivotally rotated, the locking member 51 can rotate around its axis, thereby ensuring the rationality of the structural design.

[0041] In addition, two corresponding pivot holes 24 are respectively provided on the above-mentioned cover body 22 and the bottom plate 23, and each pivot hole 24 is respectively adapted to the pivot joint 511 of the necking member 5, so that the two locking members 51 can be pivotally fixed in the face cover 2, that is, in the cover body 22, by inserting the pivot joints 511 at both ends into the two pivot holes 24 on the cover body 22 and the bottom plate 23 respectively. Such a structure is simple and reliable, and will not affect the smooth rotation of the locking member 51, and can also greatly reduce the difficulty of the assembly operation.

[0042] Furthermore, the cover body 22 includes a support frame 223 arranged in a W shape, the support frame 223 is parallel to the bottom plate 23, and there is a gap between the support frame 223 and the top surface of the cover body 22. The support frame 223 is located in the center of the cover body 22 and is arranged along the length direction of the face cover 2, and the two pivot holes 24 of the cover body 22 are respectively located at the two ends of the middle beam of the support frame 223 (the support frame 223 includes three beams arranged along the length direction, and the middle beam is the middle beam), so that the two pivot holes 24 of the middle beam can be used to achieve pivotal fixation with the two locking members 51.

[0043] In addition, one end of the above-mentioned limit pin 21 is fixedly connected to the bottom plate 23 and is arranged vertically with the bottom plate 23, and a limit hole 224 is provided in the middle of the middle cross beam of the support frame 223, so when the bottom plate 23 is assembled to the cover 22, the end of the limit pin 21 away from the bottom plate 23 is matched and connected with the limit hole 224 to limit and fix the two ends of the limit pin 21, so that the assembly strength of the limit pin 21 is higher, and reliable limit guidance of the rack member 6 is achieved. In addition, when the rack member 6 is meshed and connected to the gear 52, the lower surface of the rack member 6 is close to or in contact with the bottom plate 23, and the upper surface of the rack member 6 is close to or in contact with the support frame 223, so that the rack member 6 can be limited to prevent the rack member 6 from moving up and down.

[0044] The support frame is preferably detachably mounted and fixed to the cover body 22 to facilitate assembly. For example, locking holes are provided at both ends of the cross beams on both sides of the length direction of the support frame 223, and the support frame 223 is locked and fixed to the cover body 22 by screws passing through the two ends of the two cross beams.

[0045] Of course, in actual applications, the locking member 51 can also be pivotally fixed in the cover 2 by other connection methods, which can be determined according to actual conditions. For example, an annular groove is provided at one end of the locking member 51 facing the bottom plate 23, and a clamping edge adapted to the annular groove is provided on the bottom plate 23, and the clamping edge cooperates with the annular groove to achieve pivotal fixation. The clamping edge can be specifically formed by the side wall of the U-shaped groove connected to the side of the bottom plate 23, and the annular groove can be inserted into the groove opening of the U-shaped groove.

[0046] Further, each locking member 51 is respectively provided with a first step 512 and a second step 513, and the first adjustment 512 and the second adjustment 513 are located between the two pivot joints 511. Specifically, the cross-sections of the first step 512 and the second adjustment 513 are both square, and the second step 513 is adapted to the buckle structure of the switch member 41, so that the switch member 41 can be snapped to the second step 513 of the locking member 51 through the buckle structure to lock and fix the locking member 51. Since the cross-section of the second adjustment 513 is square, it is conducive to the snap-in operation of the buckle structure of the switch member 41, and the locking member 51 can be reliably locked and fixed. In practical applications, the cross-section of the second step 513 can also be set in other shapes, such as a regular hexagon, a regular octagon, etc.

[0047] In addition, a square hole 521 is provided in the center of each gear 52, and the square hole 521 is adapted to the first step 512, so that each gear 52 can be coaxially connected to the locking member 51 by snapping the square hole 521 into the first step 512, and the square hole 521 cooperates with the first step 512 to achieve synchronous rotation with the locking member 51, thereby ensuring that the locking member 51 can effectively prevent the rotation of the gear 52, and then lock and fix the rack member 6.

[0048] Combination Figure 3 As shown, the elastic drive assembly 4 includes an ear needle 42 and two switch members 41, wherein the ear needle 42 is installed in the face cover 2. The two switch members 41 are respectively assembled and fixed on the side walls of the face cover 2 in a manner that they can move along the length direction perpendicular to the face cover 2, and the ends of the two switch members 41 inserted into the face cover 2 are respectively connected to the two ends of the ear needle 42, so that the operator can press the two switch members 41 with the thumb and index finger respectively, so that the two switch members 41 move toward each other and overcome the spring force and squeeze the ear needle 42, thereby making the locking member 51 disengage from the buckle structure. When the pressing force on the two switch members 41 is cancelled, the two switch members 41 can move back to back under the elastic restoring force of the ear needle 42, and the buckle structure of the switch member 41 is re-clamped to the locking member 51, and the rack member 6 is locked again.

[0049] In particular, each switch member 41 is provided with a connected square slot 411 and a clearance slot 412, and the buckle structure is composed of the square slot 411, so that the square slots 411 of the two switch members 41 are respectively snapped to the second steps 513 of the two locking members 51 under the pushing action of the ear pins 42, so as to lock and fix the locking members 51 and the gear 52. Of course, the shape and size of the square slot 411 can be adjusted according to the shape and size of the locking member 51.

[0050] Furthermore, to ensure that the square slot 411 can be separated from the second step 513 of the locking member 51 when the two switch members 41 are pressed, the escape groove 412 should be located on the side of the square slot 411 away from the ear pin 42. Thus, when the two switch members 41 are pressed, the two switch members 41 move toward the direction where the cover 2 is located and compress the ear pin 42, so that the second step 513 of the locking member 51 is separated from the square slot 411 and enters the escape groove 412, thereby releasing the position restriction of the locking member 51.

[0051] In addition, the cross section of the second step 513 is larger than the cross section of the first step 512, and when the locking member 51 is installed between the cover body 22 and the bottom plate 23, the second step 513 is located between the first step 512 and the bottom plate 23, so that the second step 513 can abut against one end of the gear 52, so that the gear 52 is not easy to move on the first step 512. Of course, the above-mentioned gear 52 is preferably assembled and fixed on the first step 512 in an interference fit (i.e., tight fit) manner.

[0052] To prevent the switch member 41 from affecting the rotation of the locking component 51, the air avoidance groove 412 should be larger than the square slot 411, so that when the second step 513 breaks away from the square slot 411 and enters the air avoidance groove 412, the inner wall of the air avoidance groove 412 does not touch the second step 513, thereby avoiding contact with the second step 513 and causing the locking component 51 to be unable to rotate smoothly in the air avoidance groove 412.

[0053] In one embodiment of the present invention, the buckle for adjusting the tightness of the strap by pressing further includes two driven gears 7 and two rotating members 8, and the two driven gears 7 are respectively fixedly connected to the two rotating gears 8 by fasteners to achieve synchronous movement with the two rotating gears 8. In addition, the two driven gears 7 are respectively installed in the face cover 2 in a rotatable manner through the two rotating members 8, and the two driven gears 7 are respectively meshed with the two gears 52, so when the rack member 6 slides in the face cover 2 along the length direction, the two gears 52 will respectively drive the two driven gears 7 to rotate, and the gears 52 and the driven gears 7 are synchronously driven to rotate by the rack member 6, making the appearance design more ornamental, and using the most simplified structure to add mechanical transmission elements to the appearance design can greatly improve the attractiveness of the appearance, making the appearance of the buckle more beautiful.

[0054] Of course, in order to increase the ornamental value of the clasp, a decorative piece can be installed on the side of the driven gear 7 facing away from the rotating member 8. In this way, when the rack member 6 drives the gear 52 and the driven gear 7 to rotate, the two decorative pieces mounted on the two driven gears 7 can be rotated synchronously. In this way, there is no need to set a driving member for driving the decorative piece to rotate, which not only ensures the simplification of the structure but also makes the appearance beautiful.

[0055] In particular, the cover body 22 includes a transparent member 221, and an opening 222 is provided on the top surface of the cover body 22. The transparent member 221 is installed and fixed on the opening 222, thereby ensuring that the locking assembly 5, the two driven gears 7, the two rotating components 8 and the two decorative components are respectively exposed at the opening 222, ensuring the feasibility of the appearance design, and at the same time playing a protective role.

[0056] In another embodiment of the present invention, the buckle base 1 includes a frame 11 and a core 12, and the first end of the core 12 is pivotally fixed to one end of the frame 11 through a second pin 13, and the cover 2 is pivotally fixed to the second end 13 of the core 12 through a first pin 3. Thus, the core 12 can be separated from the frame 11 by rotating around the second pin 13 to be unfolded, and the cover 2 can be separated from the core 12 by rotating around the first pin 3 to be unfolded, thereby increasing the wearing length to achieve wearing. After wearing, the core 12 is rotated around the second pin 13 to be buckled onto the frame 11, and the cover 2 is rotated around the first pin 3 to be buckled onto the frame 11 and the core 12, thereby shortening the wearing length to lock the watch on the arm.

[0057] Preferably, the frame 11 is provided with an air avoidance groove, which is arranged along the length direction and is adapted to the main body of the core 12, and when the core 12 is engaged with the frame 11 by rotating around the second pin shaft 13, the main body of the core 12 is embedded in the air avoidance groove, which not only protects the core 12, but also reduces the volume of the buckle base 1 while ensuring the wearing function, so that the buckle base 1 has a high degree of integration.

[0058] An embodiment of the present invention also provides a watch, which includes a watch strap and the above-mentioned push-to-adjust strap buckle, wherein the tail end of the watch strap has a first assembly hole, the rack component 6 is provided with a second assembly hole adapted to the first assembly hole, and the rack component 6 is fixedly connected to the watch strap by passing through the second assembly hole and a fastener through the second assembly hole.

[0059] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A watch buckle for adjusting the tightness of a watch strap by pressing, comprising a buckle base and a cover, wherein one end of the cover is pivotally fixed to the buckle base through a first pin. It is characterized in that The buckle for adjusting the tightness of the watchband by pressing further comprises an elastic driving component, a locking component and a rack component for being assembled to the tail end of the watchband, wherein the rack component is provided with a sawtooth structure, and the sawtooth structure is arranged along the length direction of the watchband; The locking assembly is rotatably mounted in the face cover, and the locking assembly includes a locking member and a gear meshed with the serrated structure of the rack member; the elastic driving assembly is mounted in the face cover, and the elastic driving assembly includes a switch member, and the switch member is provided with a snap structure adapted to the locking member, and the snap structure is snapped into the locking member when the switch member is in a free state and prevents the gear from rotating, so as to lock and fix the rack member, and the snap structure is disengaged from the locking member when the switch member is pressed, so as to release the gear.

2. The buckle for adjusting the tightness of a watch strap according to claim 1, It is characterized in that A guide groove is provided at one end of the rack component away from the watch strap, and the guide groove is arranged along the length direction of the watch strap, and the two sides of the guide groove respectively have the serrated structure; a limit pin adapted to the guide groove is provided in the face cover, and at least a part of the limit pin is inserted into the guide groove.

3. The buckle for adjusting the tightness of the strap according to claim 2, It is characterized in that The surface cover comprises a cover body and a bottom plate, wherein the bottom plate is detachably mounted in the cover body, and the elastic driving assembly and the locking assembly are respectively located between the cover body and the bottom plate; The locking assembly includes two gears and two locking members, and each of the gears is installed in the face cover in a manner perpendicular to the face cover through one of the locking members; the two gears are distributed along a length direction perpendicular to the face cover, the rack member is located between the two gears, and the serrated structures on both sides of the guide groove of the rack member are respectively engaged with the two gears.

4. The buckle for adjusting the tightness of the strap according to claim 3, It is characterized in that The two ends of the locking member are respectively provided with pivot joints located on the axis, the cover body and the bottom plate are respectively provided with two pivot holes adapted to the pivot joints, and the two locking members are respectively pivotally fixed in the cover by inserting the pivot joints at both ends into the pivot holes of the cover body and the bottom plate; The cover body comprises a support frame arranged in a W-shape, and the support frame is parallel to the bottom plate; the support frame is located in the center of the cover body and is arranged along the length direction of the face cover, and the two pivot holes of the cover body are respectively located at the two ends of the middle cross beam of the support frame; the limit pin is vertically fixed to the bottom plate, a limit hole is arranged in the middle of the middle cross beam, and when the bottom plate is assembled to the face cover, the end of the limit pin away from the bottom plate is matched and connected with the limit hole; A first step and a second step are respectively provided in the middle of each locking member, the cross-sections of the first step and the second step are both square, and the second step is adapted to the snap structure; a square hole adapted to the first step is respectively provided in the center of each gear, and each gear is coaxially connected to the locking member by snapping into the first step through the square hole, and realizes synchronous rotation with the locking member through the cooperation of the square hole and the first step.

5. The buckle for adjusting the tightness of a watch strap according to claim 4, It is characterized in that The elastic drive assembly includes two switch members and ear pins located in the face cover, the two switch members are respectively fixed to the side walls of the face cover in a manner that they can move along a length direction perpendicular to the face cover, and one end of the two switch members inserted into the face cover is respectively connected to the two ends of the ear pins; Each of the switch components is provided with a connected square card slot and a clearance groove, and the buckle structure is composed of the square card slot; the clearance groove is located on the side of the square card slot away from the ear pin, and the square card slots of the two switch components are respectively clamped to the second steps of the two locking components under the pushing action of the ear pin to limit and fix the locking component and the gear.

6. The buckle for adjusting the tightness of a watch strap according to claim 5, It is characterized in that The cross section of the second step is larger than the cross section of the first step, and when the locking member is installed between the cover body and the bottom plate, the second step is located between the first step and the bottom plate; The avoidance groove is larger than the square slot, and when the two switch members are pressed, the two switch members move toward the direction of the face cover and compress the ear pins, so that the second step of the locking member leaves the square slot and enters the avoidance groove.

7. The buckle for adjusting the tightness of a watch strap according to claim 3, It is characterized in that The push-to-adjust strap buckle also includes two driven gears and two rotating components, wherein the two driven gears are rotatably mounted in the face cover via the two rotating components, and the two driven gears are respectively meshed with the two gears, and when the rack component slides in the face cover along the length direction, the two gears respectively drive the two driven gears to rotate.

8. The buckle for adjusting the tightness of a watch strap according to claim 7, It is characterized in that The cover body comprises a transparent member, and an opening is arranged on the top surface of the cover body, and the transparent member is mounted and fixed on the opening; the locking assembly, two driven gears and two rotating members are all exposed to the opening.

9. The buckle for adjusting the tightness of a watch strap according to claim 1, It is characterized in that The buckle-making base includes a frame and a core, and the first end of the core is pivotally fixed to one end of the frame through a second pin, and the surface cover is pivotally fixed to the second end of the core through a first pin; the frame has an air avoidance groove arranged along the length direction and adapted to the main body of the core, and when the core is buckled into the frame by rotating around the second pin, the main body of the core is embedded in the air avoidance groove.

10. A watch, It is characterized in that It comprises a watch strap and a push-to-adjust buckle as described in any one of claims 1 to 9; the tail end of the watch strap has a first assembly hole, the rack component is provided with a second assembly hole matched with the first assembly hole, and the rack component is fixedly connected to the watch strap by passing through the second assembly hole and a fastener of the second assembly hole.

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