Watch strap structure and watch

Abstract

A watchband structure of a watch comprises a plurality of watchband units, each watchband unit comprises a first band particle, a second band particle, an elastic piece, a button and a connecting pin, the first band particle is provided with a first penetrating hole and two first major arc grooves, and the lower surface of the first band particle is provided with a first groove and a second groove which are communicated with the first penetrating hole. A limiting adjusting hole communicated with the first groove is formed in the first major arc groove; the two sides of the second belt particle are respectively provided with a protruding column which is inserted into the first major arc groove in a sliding mode, the outer contour of each protruding column is matched with the inner contour of the first major arc groove, and each protruding column is provided with a third groove. The elastic piece is contained in the second groove and elastically abuts against the inner wall of the second groove. The button is embedded into the first groove and elastically abuts against the elastic piece. The button is provided with a second penetrating hole and two second major arc grooves, wherein the two second major arc grooves are formed in the two sides of the button and are the same as the first major arc grooves in shape. The connecting pin penetrates through the first penetrating hole and the second penetrating hole and is fixedly connected with the first belt particle, and the diameter of the connecting pin is smaller than the inner diameter of the second penetrating hole. The utility model also discloses a watch comprising the watchband structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to watch accessory technology field especially, and it is a kind of watch strap structure and watch that can realize watch strap particle quick disassembly and particle connection reliable. BACKGROUND

[0002] Watch strap particle is the basic component unit of metal watch strap, and the adjacent particles are mainly positioned by hinge connection mode, so that the watch strap can change shape when worn to adapt to the shape of the consumer's wrist. Currently, the industry's particles are generally connected by setting convex or concave cylindrical structures on the adjacent two particles, and further adding a screw limit to prevent the cylindrical structure from coming off. In this case, before disassembling the watch strap particle, the screw needs to be removed first, and then the cylindrical structure is disassembled. The disassembly operation of the particle is relatively cumbersome, and the screw has a risk of falling off during the actual wearing of the watch, which may cause the cylindrical structure to fall off and the particle to come off. The reliability of the particle connection is insufficient, and the watch is easy to fall off from the consumer's wrist, which may affect the consumer's wearing experience. SUMMARY

[0003] Therefore, it is necessary to provide a watch strap structure and watch that can realize quick disassembly of watch strap particles and reliable connection of particles to address the above problems.

[0004] A watch strap structure includes a plurality of watch strap units connected in sequence, and each watch strap unit includes:

[0005] A first particle has a first through hole extending along its length direction and penetrating through its two opposite end faces, and two first optimal arc grooves located on the two opposite sides of the first through hole. A first recess is formed on the lower surface of the first particle and communicates with the first through hole, and a second recess is formed on the top surface of the first recess. Limiting adjustment holes are formed in the two first optimal arc grooves and communicate with the first recess.

[0006] A second particle has a protruding column on each of its two opposite sides, and the outer contour shape of the protruding column is adapted to the inner contour shape of the first optimal arc groove. The protruding column of the second particle is slidably inserted into the first optimal arc groove, and a third recess is formed in the protruding column corresponding to the limiting adjustment hole.

[0007] A spring is accommodated in the second recess and elastically abuts against the inner wall of the second recess.

[0008] A button is embedded in the first recess and elastically abuts against the spring. The button has a second through hole and two second optimal arc grooves on its two opposite sides, and the shape of the second optimal arc groove is the same as that of the first optimal arc groove. The size of the button along the length direction of the first particle is less than or equal to the limiting adjustment hole, and the size of the upper side wall of the second optimal arc groove along the length direction of the first particle is less than or equal to the size of the third recess along the length direction of the first particle.

[0009] A connecting pin is fixedly connected with the first band grain through the first and second through holes, and the diameter of the connecting pin is smaller than the inner diameter of the second through hole; the second optimal arc groove is misaligned with the first optimal arc groove in the natural stretching state of the elastic sheet, so as to limit the sliding of the second band grain.

[0010] In one of the embodiments, the width of the first groove is greater than the width of the second groove, and a limiting step is formed at the transition position of the first groove and the second groove.

[0011] In one of the embodiments, the elastic sheet has a tile-shaped structure, including an arc-shaped bending part and two end parts located on both sides of the arc-shaped bending part, the end parts elastically abut against the top surface of the second groove, and the arc-shaped bending part elastically abuts against the upper surface of the button.

[0012] In one of the embodiments, the upper surface of the button is provided with an avoidance notch communicating with the second optimal arc groove at each end of the second optimal arc groove, a boss is formed between the two avoidance notches, the size of the boss along the length direction of the first band grain is less than or equal to the size of the third groove along the length direction of the first band grain, and the depth of the avoidance notch is less than the thickness of the button.

[0013] In one of the embodiments, the limiting adjustment hole, the third groove and the button have the same size along the length direction of the first band grain.

[0014] In one of the embodiments, the upper surface of the button is provided with a circular-arc-shaped avoidance part.

[0015] In one of the embodiments, the convex column extends along the length direction of the second band grain, and the two opposite end faces of the convex column are respectively flush with the two opposite end faces of the second band grain.

[0016] In one of the embodiments, the first groove is located in the middle part of the lower surface of the first band grain, the first optimal arc groove is located in the middle part of the side surface of the first band grain, the convex column is located in the middle part of the side surface of the second band grain, and the second optimal arc groove is located in the middle part of the side surface of the button.

[0017] In one of the embodiments, the width of the first band grain is greater than the width of the second band grain.

[0018] The utility model discloses still a kind of wristwatches, which comprises the wristwatch watchband structure described above.

[0019] The utility model discloses a watchband structure and watch, through the connecting pin installs the button on the first band grain, and through the first optimal arc groove and the convex column concave convex cooperation mode realizes the location of first band grain and second band grain, utilize the stretch of elastic piece and promote the button, make the second optimal arc groove on the button and the first optimal arc groove of first band grain dislocation, and the button is with the inner wall of third recess of second band grain mutual constraint to limit the sliding of second band grain relative to first band grain, realize the location of second band grain and first band grain, through pressing the button, make the cross section of first optimal arc groove and the cross section of second optimal arc groove coincide, that is, release the constraint of button to the inner wall of third recess, to slide out second band grain from first optimal arc groove, realize the split of watchband unit, and its simple structure does not need to use the tool to first band grain and second band grain quick assembly and disassembly, so that the length of watchband is adjusted, the watchband dismounting difficulty is reduced, and after watchband assembly, the button is positioned to second band grain under the action of elastic piece, and first band grain and second band grain are connected reliably and are not easy to separate automatically, avoid the risk of screw drop or accessory drop, can prevent the watch falling problem caused by watchband rupture, and improve the wearing experience of consumer. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the top view of watchband unit in an embodiment of the utility model;

[0021] Figure 2 It is the side view of watchband unit in an embodiment of the utility model;

[0022] Figure 3 It is the cross section structure schematic view of watchband unit in an embodiment of the utility model;

[0023] Figure 4 It is the side view of second band grain connection of one watchband unit and another watchband unit in an embodiment of the utility model;

[0024] Figure 5 It is the cross section structure schematic view of second band grain connection of one watchband unit and another watchband unit in an embodiment of the utility model;

[0025] Figure 6 It is the perspective view of first band grain in an embodiment of the utility model;

[0026] Figure 7 It is the top view of first band grain in an embodiment of the utility model;

[0027] Figure 8 It is the bottom view of first band grain in an embodiment of the utility model;

[0028] Figure 9 It is the perspective view of second band grain in an embodiment of the utility model;

[0029] Figure 10 is a second belt grain top view of an embodiment of the present application;

[0030] Figure 11 is a perspective view of a spring of an embodiment of the present application;

[0031] Figure 12 is a perspective view of a button of an embodiment of the present application;

[0032] Figure 13 is a perspective view of a connecting pin of an embodiment of the present application. DETAILED DESCRIPTION

[0033] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without some or all of these specific details, in other manners not specifically described herein. In other instances, well-known methods, procedures and components have not been described in detail so as not to unnecessarily obscure aspects of the present application.

[0034] Please refer to Figures 1-13 The present application discloses a watchband structure capable of realizing quick disassembly and reliable connection of the band grains, comprising a plurality of watchband units 100 connected in sequence, which are used to provide the basic unit of the watchband, i.e. the band grain, and also provide the connection structure of the adjacent band grains, so that the watchband units 100 can be smoothly assembled into a complete watchband. The watchband unit 100 comprises a first band grain 110, a second band grain 120, a spring 130, a button 140 and a connecting pin 150, the first band grain 110 and the second band grain 120 together constitute the link of the watchband; the button 140 is used to provide the "switch" when the first band grain 110 and the second band grain 120 are disassembled; the connecting pin 150 is used to limit the position of the button 140 on the first band grain 110, so as to avoid the button 140 from falling off the first band grain 110; the spring 130 and the connecting pin 150 are used to position the first band grain 110 together, and the spring 130 is also used to provide the restoring force after the pressure on the first band grain 110 is removed, so that the first band grain 110 can be reset under the pushing of the spring 130, clamping the second band grain 120, and avoiding the second band grain 120 from sliding out of the first band grain 110.

[0035] Specifically, the first band grain 110 is approximately rectangular in overall shape, the upper surface of the first band grain 110 faces away from the wrist when the watch is worn, and the upper surface is planar or arc-shaped, the lower surface of the first band grain 110 is in contact with the wrist of the consumer when the watch is worn, and the lower surface is planar or arc-shaped to match the shape of the wrist. The left and right sides of the first band grain 110 are respectively matched with the second band grain 120 of the watchband unit 100 and the second band grain 120 of the adjacent watchband unit 100, the second band grain 120 is inserted into the first band grain 110 from the front and rear ends of the first band grain 110 to limit the first band grain 110 and the second band grain 120. The first band grain 110 is provided with a first through hole 111 and two first arc grooves 112 extending along the length direction of the first band grain 110 and penetrating through the two opposite end surfaces, the two first arc grooves 112 are located on the opposite sides of the first through hole 111, the two first arc grooves 112 are opposite in groove direction, and the cross section of the first band grain 110 is H-shaped. The lower surface of the first band grain 110 is provided with a first recess 113 communicating with the first through hole 111 and a second recess 114 located on the top surface of the first recess 113, which can be understood as a stepped groove formed by the first recess 113 and the second recess 114. The two first arc grooves 112 are each provided with a limiting adjustment hole 115 communicating with the first recess 113, that is, each of the two opposite inner side walls of the first recess 113 is provided with a limiting adjustment hole 115. The second band grain 120 is provided with a protruding column 121 on each of the opposite sides, the cross section of the second band grain 120 is cross-shaped, the outer contour shape of the protruding column 121 matches the inner contour shape of the first arc groove 112, that is, the cross section of the protruding column 121 is also arc-shaped, the protruding column 121 of the second band grain 120 is slidably inserted into the first arc groove 112 and can rotate relative to the first band grain 110, and the protruding column 121 is provided with a third recess 122 corresponding to the limiting adjustment hole 115.

[0036] When the protruding column 121 of the second band grain 120 is slidably inserted into the first arc groove 112 along the front and rear end direction of the first band grain 110, since the inner contour shape of the first arc groove 112 is the same as the outer contour shape of the protruding column 121, the first arc groove 112 semi-surrounds the protruding column 121 and limits the protruding column 121 through the groove edge of the first arc groove 112, so as to avoid the second band grain 120 from moving away from the first band grain 110 along the width direction of the first band grain 110 (i.e. the direction in which the left side of the first band grain 110 points to the right side, or the direction in which the right side of the first band grain 110 points to the left side), and to prevent the second band grain 120 from moving away from the first band grain 110 along the thickness direction of the first band grain 110 (i.e. the direction in which the lower surface of the first band grain 110 points to the upper surface, or the direction in which the upper surface of the first band grain 110 points to the lower surface), thereby limiting the movement of the second band grain 120 along the width direction and the thickness direction of the first band grain 110.

[0037] The elastic piece 130 is accommodated in the second groove 114 and elastically abuts against the inner wall of the second groove 114; the button 140 is embedded in the first groove 113 and elastically abuts against the elastic piece 130. The button 140 is provided with a second through hole 141 and two second arc grooves 142 which are located on two opposite sides of the second through hole 141 and have the same shape as the first arc groove 112. Similarly, the second through hole 141 extends along the length direction of the button 140 (i.e. the length direction of the first belt 110) and penetrates through two opposite end surfaces of the button 140, and the second arc grooves 142 extend along the length direction of the button 140 and penetrate through two opposite end surfaces of the button 140. The directions of the two second arc grooves 142 are opposite, and the cross section of the button 140 is in H-shaped structure. In this way, since the second arc grooves 142 have the same shape as the first arc groove 112, when the cross section of the second arc grooves 142 coincides with the cross section of the second arc grooves 142 (the axes are collinear), the first arc groove 112 and the second arc grooves 142 jointly form a straight circular arc-shaped channel, so as to insert the convex column 121 of the second belt 120 into the circular arc-shaped channel or take out the convex column 121 of the second belt 120 from the circular arc-shaped channel. The size of the button 140 along the length direction of the first belt 110 is less than or equal to the size of the limiting adjustment hole 115 along the length direction of the first belt 110, so as to avoid that the edge of the limiting adjustment hole 115 interferes with the installation of the button 140 in the first groove 113. The size of the upper side wall of the second arc grooves 142 along the length direction of the first belt 110 is less than or equal to the size of the third groove 122 along the length direction of the first belt 110, so that when the button 140 is pushed by the elastic piece 130 and moves towards the direction of the slot of the first groove 113, the upper side wall part of the second arc grooves 142 can enter the first arc groove 112 and form a block to the inner wall of the third groove 122, so as to prevent the second belt 120 from sliding relative to the first belt 110.

[0038] The connecting pin 150 passes through the first and second through holes 111 and 141 and is fixedly connected with the first band particle 110 to limit the position of the button 140 relative to the first band particle 110, avoiding the button 140 from being separated from the first band particle 110 at the slot of the first recess 113. The diameter of the connecting pin 150 is smaller than the inner diameter of the second through hole 141, so that the connecting pin 150 can slide along the thickness direction of the first band particle 110 under external pressure to adjust the position relationship between the button 140 and the first band particle 110. In the embodiment, the second optimal arc groove 142 is misaligned relative to the first optimal arc groove 112 in the natural extension state of the elastic sheet 130 to limit the sliding of the second band particle 120. The difference between the diameter of the connecting pin 150 and the inner diameter of the second through hole 141 needs to satisfy that when the button 140 is pressed and slides along the thickness direction of the first band particle 110 by a preset distance (which is smaller than or equal to the maximum distance of the button 140 being pressed and sliding), the cross section of the second optimal arc groove 142 coincides with the cross section of the first optimal arc groove 112, so as to slide the second band particle 120 out of the first optimal arc groove 112.

[0039] In the assembling process of the watchband structure, the elastic sheet 130 is first installed into the second groove 114 of the first band grain 110, and the button 140 is installed into the first groove 113 of the first band grain 110, the connecting pin 150 is inserted into the first through hole 111 from the front end or the rear end of the first band grain 110, and the connecting pin 150 passes through the second through hole 141, and after the connecting pin 150 is completely inserted into the first through hole 111, the connecting pin 150 is fixed with the inner wall of the first through hole 111. Since the diameter of the connecting pin 150 is smaller than the inner diameter of the second through hole 141, the button 140 can be pressed up and down under external pressure while remaining on the first band grain 110 without falling off. At this time, the button 140 is pressed, the cross section of the second optimal arc groove 142 coincides with the cross section of the first optimal arc groove 112; the button 140 is released, and the button 140 slides along the thickness direction of the first band grain 110 relative to the first band grain 110 under the action of the elastic sheet 130 and returns to the original position, and when the elastic sheet 130 is in a natural state, the cross section of the second optimal arc groove 142 of the button 140 is dislocated from the cross section of the first optimal arc groove 112, and the upper side wall part of the second optimal arc groove 142 enters the first optimal arc groove 112. Subsequently, the second band grain 120 is slidably inserted into the first optimal arc groove 112 from the first optimal arc groove 112 end of the first band grain 110, and when the end of the second band grain 120 slides to the button 140, the button 140 is pressed, and the cross section of the second optimal arc groove 142 coincides with the cross section of the first optimal arc groove 112, so that the convex column 121 of the second band grain 120 can pass through the second optimal arc groove 142 of the button 140. Subsequently, the button 140 is released, and in the process of sliding the convex column 121 in the second optimal arc groove 142, the convex column 121 extrudes the inner wall of the second optimal arc groove 142, so that the elastic sheet 130 is continuously kept compressed. When the third groove 122 of the second band grain 120 moves to align with the button 140, the extrusion of the convex column 121 to the inner wall of the second optimal arc groove 142 is released, the button 140 is returned under the push of the elastic sheet 130, the upper side wall part of the second optimal arc groove 142 enters the first optimal arc groove 112 and cooperates with the inner wall of the third groove 122, so that the second band grain 120 is difficult to slide out from the front and rear ends of the first band grain 110, so as to realize the limiting of the second band grain 120 along the length direction of the first band grain 110, realize the assembling of the single watchband unit 100, and then the remaining watchband units 100 are assembled in the same way, and after the assembling of each watchband unit 100 is completed, the second band grain 120 is inserted into the first optimal arc groove 112 of the first band grain 110 of the adjacent watchband unit 100 according to the same second band grain 120 assembling method, so as to realize the assembling of the watchband. Conversely, the second band grain 120 can be extracted by pressing the button 140, so as to realize the separation of the second band grain 120 from the first band grain 110.It should be noted that the watchband unit 100 can be used not only as a part of the watchband, but also as a connecting piece of the watchband and the watchcase, in which case the first band grain 110 is the tail grain of the watchband, and the second band grain 120 is the watch ear on the watchcase.

[0040] In an embodiment, the width of the first band grain 110 is greater than the width of the second band grain 120, that is, the first band grain 110 is a wide grain, and the second band grain 120 is a narrow grain, to accommodate the installation of the button 140. Of course, under the premise of meeting the installation of the button 140 on the first band grain 110, the width of the first band grain 110 can also be less than or equal to the width of the second band grain 120 to adapt to the design of the watchband, which will not be described here. In this embodiment, the first recess 113 is located in the middle of the lower surface of the first band grain 110, the first optimal arc groove 112 is located in the middle of the side surface of the first band grain 110, the convex column 121 is located in the middle of the side surface of the second band grain 120, the second optimal arc groove 142 is located in the middle of the side surface of the button 140, the first through hole 111 is located in the middle of the end surface of the first band grain 110, and the second through hole 141 is located in the middle of the end surface of the button 140. In this way, the connection part of the first band grain 110 and the second band grain 120 can be uniformly stressed, and the connection part of the button 140 and the first band grain 110 and the second band grain 120 can be uniformly stressed, so as to improve the stability of the entire watchband structure.

[0041] In an embodiment, the width of the first recess 113 is greater than the width of the second recess 114, and the transition part of the first recess 113 and the second recess 114 forms a limiting step 116. The width of the button 140 is between the width of the first recess 113 and the width of the second recess 114. In this way, when the button 140 is installed in the first recess 113, and the difference between the diameter of the connecting pin 150 and the inner diameter of the second through hole 141 is allowed, the limiting step 116 can limit the maximum pressing depth of the button 140 when the button 140 is pressed by external pressure. Preferably, in this embodiment, the position of the limiting step 116 needs to meet that when the button 140 is completely pressed and abuts against the limiting step 116, the cross section of the second optimal arc groove 142 coincides with the cross section of the first optimal arc groove 112, so that the operator can evaluate the relative position relationship between the second optimal arc groove 142 and the first optimal arc groove 112 according to the pressing height of the button 140.

[0042] In this embodiment, the convex column 121 extends along the length direction of the second band grain 120, and the two opposite end surfaces of the convex column 121 correspond to and are flush with the two opposite end surfaces of the second band grain 120, respectively. In other words, the convex column 121 is arranged in the entire length direction of the second band grain 120 to increase the fitting area of the second band grain 120 and the first band grain 110, thereby improving the stability and reliability of the connection between the second band grain 120 and the first band grain 110.

[0043] The elastic sheet 130 is in a tile structure, including an arc-shaped bent portion 131 and two end portions 132 on both sides of the arc-shaped bent portion 131, the end portion 132 elastically abuts against the top surface of the second groove 114, and the arc-shaped bent portion 131 elastically abuts against the upper surface of the button 140. It can be understood that the arc-shaped bent portion 131 is actually an arc-shaped structure bent towards the direction close to the slot of the first groove 113. By arranging the arc-shaped bent portion 131 on the elastic sheet 130, the elastic force can be generated by the extrusion between the upper surface of the button 140 and the arc-shaped bent portion 131, so as to facilitate the automatic reset of the button 140 after the pressure is removed.

[0044] In an embodiment, the upper surface edge of the button 140 is provided with a circular-arc-shaped avoiding portion 143, which is actually a round corner structure arranged on the upper surface of the button 140 and extending along the length direction of the button 140. By arranging the circular-arc-shaped avoiding portion 143 on the upper surface of the button 140, the knocking of the button 140 with the edge of the slot of the first groove 113 during the insertion of the button 140 into the first groove 113 can be avoided, so as to reduce the difficulty of the button 140 into the first groove 113. In addition, in the embodiment, the size of the limiting adjustment hole 115 and the button 140 along the length direction of the first strip 110 is the same. The upper surface of the button 140 is provided with an avoiding notch 144 communicating with the second arcuate groove 142 at each end of the second arcuate groove 142, and a boss 145 is formed between the two avoiding notches 144, the size of the boss 145 along the length direction of the first strip 110 is less than or equal to the size of the third groove 122 along the length direction of the first strip 110, and the depth of the avoiding notch 144 is less than the thickness of the button 140. In this way, while facilitating the cooperation between the lower part of the button 140 and the edge of the limiting adjustment hole 115 to limit the position of the button 140 in the first groove 113 along the axial direction of the connecting pin 150, the size of the third groove 122 along the length direction of the first strip 110 can be reduced as much as possible to weaken the influence of the third groove 122 on the cooperation area of the second strip 120 and the first strip 110, and the connection strength of the second strip 120 and the first strip 110 is ensured.

[0045] In an embodiment, one end of the connecting pin 150 is provided with a knurled portion 151 tightly connected with the inner wall of the first through hole 111. In the embodiment, the connecting pin 150 is in a cylindrical structure, the diameter of the connecting pin 150 is less than or equal to the inner diameter of the first through hole 111, and the diameter of the knurled portion 151 is slightly larger than the inner diameter of the first through hole 111. In this way, while facilitating the smooth insertion of the connecting pin 150 into the first through hole 111, the knurled portion 151 at one end of the connecting pin 150 can be forcedly pressed into the first through hole 111, and the fixing of the connecting pin 150 on the first strip 110 is realized through the interference fit between the knurled portion 151 and the inner wall of the first through hole 111, so as to avoid the falling of the button 140 from the first strip 110.

[0046] Further, the utility model discloses a kind of watches, and the watch includes the watchband structure described above, watch also includes with the watchband structure connection's watchcase, the core that is housed in watchcase, the handle that rotates and is connected with the drive of core and is housed in watchcase and is located above core, dial, setting in the one side of dial and being opposite core and with the drive connection of core needle component, fixed in the watch glass of watchcase main face and fixed in the back of watchcase and with watchcase collectively encapsulated core, dial and bottom cover of core needle component.

[0047] The utility model discloses a watchband structure and watch of implementing, through connecting pin 150, button 140 is installed on first band grain 110, and through the way of first optimal arc groove 112 and convex column 121 concave convex cooperation realizes the location of first band grain 110 and second band grain 120, utilize the extension of elastic sheet 130 and promote button 140, so that the second optimal arc groove 142 on button 140 and the first optimal arc groove 112 of first band grain 110 are out of position, button 140 is with the inner wall of third recess 122 on second band grain 120 mutual restraint, to limit the sliding of second band grain 120 relative to first band grain 110, realize the location of second band grain 120 and first band grain 110, by pressing button 140, the cross section of first optimal arc groove 112 and the cross section of second optimal arc groove 142 coincide, that is, remove the restraint of button 140 to third recess 122 inner wall, to slide second band grain 120 from first optimal arc groove 112, realize the split of watchband unit 100, its structure is simple, need not extra use tool to quickly disassemble first band grain 110 and second band grain 120, reduce the disassembly difficulty of watchband, after watchband assembly, button 140 is under the action of elastic sheet 130 and continuously locates second band grain 120, first band grain 110 and second band grain 120 connection is reliable, not easy to separate automatically, avoids the risk of screw drop or accessory drop, can prevent the watch falling problem caused by watchband rupture, improves the wearing experience of consumer.

[0048] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.

[0049] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A watchband structure, characterized by, The watchband structure comprises a plurality of watchband units connected in sequence, and the watchband units comprise: A first band grain, a first through hole and two first optimal arc grooves are formed on the first band grain, the first through hole extends along the length direction of the first band grain and penetrates through two opposite end faces, the two first optimal arc grooves are located on two opposite sides of the first through hole, a first recess is formed on the lower surface of the first band grain and communicates with the first through hole, and a second recess is formed on the top surface of the first recess, a limiting adjustment hole is formed on each of the two first optimal arc grooves and communicates with the first recess; A second band grain, a protruding column is arranged on each of two opposite sides of the second band grain, the outer contour shape of the protruding column is adapted to the inner contour shape of the first optimal arc groove, the protruding column of the second band grain is slidably inserted into the first optimal arc groove, and a third recess corresponding to the limiting adjustment hole is formed on the protruding column; An elastic sheet is accommodated in the second recess and elastically abuts against the inner wall of the second recess; A button is embedded in the first recess and elastically abuts against the elastic sheet, a second through hole and two second optimal arc grooves are formed on the button, the second through hole is located on two opposite sides of the first optimal arc groove and has the same shape as the first optimal arc groove, the size of the button along the length direction of the first band grain is less than or equal to the limiting adjustment hole, and the size of the side wall of the second optimal arc groove along the length direction of the first band grain is less than or equal to the size of the third recess along the length direction of the first band grain; A connecting pin penetrates through the first through hole and the second through hole and is fixedly connected with the first band grain, the diameter of the connecting pin is less than the inner diameter of the second through hole, and the second optimal arc groove is misaligned with respect to the first optimal arc groove in the natural extension state of the elastic sheet to limit the sliding of the second band grain.

2. The watchband structure according to claim 1, characterized by, The width of the first recess is greater than the width of the second recess, and a limiting step is formed at the transition position of the first recess and the second recess.

3. The watchband structure of claim 1, wherein The elastic sheet has a tile-like structure, comprising an arc-shaped bending part and two end parts located on two sides of the arc-shaped bending part, the end parts elastically abut against the top surface of the second recess, and the arc-shaped bending part elastically abuts against the upper surface of the button.

4. The watchband structure of claim 1, wherein One end of the connecting pin is provided with a knurled part that is tightly connected with the inner wall of the first through hole.

5. The watchband structure of claim 1, wherein The upper surface of the button is provided with an avoidance notch corresponding to the second optimal arc groove at each end of the second optimal arc groove, a convex part is formed between the two avoidance notches, the size of the convex part along the length direction of the first band grain is less than or equal to the size of the third recess along the length direction of the first band grain, and the depth of the avoidance notch is less than the thickness of the button.

6. The watchband structure of claim 1, wherein The upper surface edge of the button is provided with a circular-arc-shaped avoidance part.

7. The watchband structure of claim 1, wherein The protruding column extends along the length direction of the second band grain, and two opposite end faces of the protruding column are respectively flush with two opposite end faces of the second band grain.

8. The watchband structure of claim 1, wherein, The first recess is located in the middle part of the lower surface of the first band grain, the first optimal arc groove is located in the middle part of the side surface of the first band grain, the protruding column is located in the middle part of the side surface of the second band grain, and the second optimal arc groove is located in the middle part of the side surface of the button.

9. The watchband structure of claim 1, wherein, The width of the first band grain is greater than the width of the second band grain.

10. A watch characterized by The watchband structure comprises the watchband structure according to any one of claims 1-9.

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