CN213045701U

CN213045701U - Watch buckle capable of automatically locking and buckling to adjust tightness of watchband and watch

Info

Publication number: CN213045701U
Application number: CN202021719722.XU
Authority: CN
Inventors: 裘里斯杨; 魏礼
Original assignee: Ruixin Hardware Heyuan Co ltd
Current assignee: Ruixin Hardware Heyuan Co ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-04-27
Anticipated expiration: 2030-08-17

Abstract

The utility model provides an automatic locking type watch buckle for adjusting the tightness of a watchband and a watch, wherein the automatic locking type watch buckle for adjusting the tightness of the watchband comprises a buckle making base and a surface cover, the surface cover is pivoted on the buckle making base, the automatic locking type watch buckle for adjusting the tightness of the watchband also comprises a locking component and an elastic component, the elastic component is arranged on the surface cover, and the locking component is pivoted to the surface cover; the locking assembly comprises a locking position for inserting a watchband, a driving part and a hooking part, the hooking part is provided with a hooking structure, the driving part is connected with the elastic piece, and the hooking structure is fixedly connected to a groove or a hole of the watchband in a pushing mode of the elastic piece so as to lock the watchband in the face cover; the hook structure is separated from the groove or the hole in a mode that the driving part extrudes the elastic piece, so that the watchband does telescopic motion along the length direction. The utility model has the advantages of simple structure is reliable, and spare part is few, and easy dismounting has higher practicality.

Description

Watch buckle capable of automatically locking and buckling to adjust tightness of watchband and watch

Technical Field

The embodiment of the utility model provides a wearing equipment technical field, more specifically say, relate to an automatic hasp formula is adjusted watch buckle and wrist-watch of watchband elasticity.

Background

A wristwatch, also called a wristwatch, refers to an instrument worn on the wrist for timing and displaying time. Watches are generally made of leather, rubber, nylon cloth, stainless steel, etc. to form a band for holding a watch face displaying time on the wrist.

At present, for realizing that the length of watchband is adjustable, the elasticity degree of person's of facilitating the use quick adjustment watchband to improve the travelling comfort of wearing, present wrist-watch is buckled at the table and is add the tight regulation device that is used for watchband length adjustment more. Because the length of the watch buckle is fixed, the part of the watch buckle overlapped with the watch buckle can be adjusted by adjusting the length of the watch strap, and the tightness of the watch strap can be adjusted.

However, the structure of the tightness adjusting device of the existing watch is complex, so that the difficulty in assembling and disassembling the watch buckle is increased, the operation efficiency is low, the fixed connection between the watchband and the tightness adjusting device on the watch buckle is usually not detachable, and the practicability is low.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a to the dismouting degree of difficulty that the table of above-mentioned current wrist-watch was detained is big, inefficiency and wrist-watch and table detain the problem that fixed connection between is not removable, the practicality is low, provide an automatic hasp formula and adjust table knot and wrist-watch of watchband elasticity.

The embodiment of the utility model provides a technical scheme who solves above-mentioned technical problem provides an automatic hasp formula watch buckle of adjusting watchband elasticity, including system detain base and face lid, one end of face lid is fixed on system detains the base through the first round pin axle pin joint, automatic hasp formula watch buckle of adjusting watchband elasticity still includes hasp subassembly and elastic component, and the elastic component installation is fixed on the face lid, the hasp subassembly is fixed to the face lid through the second round pin axle pin joint; the locking assembly comprises a locking position for inserting a watchband, and a driving part and a hooking part which are respectively arranged at two sides of the locking position, the hooking part is provided with a hooking structure matched with a groove or a hole which is arranged on the watchband along the length direction, the driving part is connected with the elastic piece and drives the driving part to rotate in a pushing and pressing mode of the elastic piece, so that the hooking structure is fixedly connected to the groove or the hole of the watchband to lock the watchband in the face cover; the hook structure is separated from the groove or the hole in a mode that the driving part rotates around the second pin shaft to extrude the elastic piece, so that the watchband can do telescopic motion along the length direction relative to the surface cover and the locking position.

Preferably, the lock catch assembly comprises a rocking handle piece and a lock rod piece, and the rocking handle piece is pivotally connected and fixed to the face cover through the second pin shaft and forms the driving part; the lock rod piece is pivoted and fixed to the face cover through the second pin shaft and forms the hook part;

rocking handle spare includes the crossbeam and locates separately two support arms at the both ends of crossbeam, rocking handle spare is through two the support arm pin joint is arrived the both sides of face lid, just locking position by crossbeam, two support arms and locking lever spare enclose to close and form.

Preferably, the free ends of the two support arms are respectively provided with a first locking hole position, and the two ends of the lock rod piece are respectively provided with a second locking hole position; the side walls of two sides of the other end of the face cover are respectively provided with a pivoting hole, the distance between the two support arms is greater than or equal to the distance between the side walls of the two sides of the face cover, and the length of the lock rod piece is less than or equal to the distance between the side walls of the two sides of the face cover;

the second pin shaft comprises two pivot bolts, and the rocking handle piece and the lock rod piece are respectively pivoted and fixed with the face cover in a mode that the two pivot bolts penetrate through the first locking hole position, the pivot hole and the second locking hole position.

Preferably, each of the pivot bolts includes a first-stage locking section adapted to the first locking hole, a pivot section adapted to the pivot hole, and a second-stage locking section adapted to the second locking hole, and an outer diameter of the first-stage locking section is greater than an outer diameter of the pivot section, and an outer diameter of the pivot section is greater than an outer diameter of the second-stage locking section; when the rocking handle piece and the locking rod piece are pivotally connected and fixed to the face cover, the two pivoting bolts limit and fix the rocking handle piece through the matching of the primary locking section and the first locking hole, and limit and fix the locking rod piece through the matching of the secondary locking section and the second locking hole, so that the relative motion between the rocking handle piece and the locking rod piece is avoided.

Preferably, the first locking hole site comprises a limiting hole with a quincunx cross section, one side of the first-stage locking section, which is far away from the pivoting section, is provided with a locking head matched with the limiting hole, and the rocking handle piece synchronously rotates with the pivoting bolt in a mode that the limiting hole is matched with the locking head.

Preferably, the lock rod piece comprises an assembly hole arranged on the outer wall and a fastener arranged in the assembly hole, and the assembly hole penetrates through the second locking hole; the secondary locking section comprises an annular clamping groove and a first tooth pattern structure arranged on the outer wall;

the second locking hole position is provided with a second tooth pattern structure matched with the first tooth pattern structure, and the lock rod piece and the pin joint bolt synchronously rotate in a mode that the first tooth pattern structure is matched with the second tooth pattern structure; and when the second-stage locking section of the pivot bolt is inserted into the second locking hole position, at least one part of the fastening piece in the assembling hole is inserted into and clamped with the annular clamping groove of the pivot bolt, so that the pivot bolt is locked and fixed in the second locking hole position.

Preferably, the lock rod piece comprises a main rod body, and the hooking structure is L-shaped and is vertically connected to the main rod body; a chamfer inclined plane is arranged on one side, facing the locking position, of the free end of the hooking structure, and when the watchband slides towards the direction of the face cover, the groove of the watchband extrudes the chamfer inclined plane, so that the rocking handle piece rotates around the second pin shaft and extrudes the elastic piece;

the rocking handle piece also comprises a limiting pressure plate, and one end of the limiting pressure plate is fixedly connected with the cross beam; the bottom surface of the limiting pressure plate is provided with a buckling position, the top surface of the surface cover is provided with a limiting beam matched with the buckling position and an avoiding groove arranged adjacent to the limiting beam, and when the rocking handle piece is pushed and pressed by the elastic piece to move towards the buckling direction of the buckling structure, the buckling position of the limiting pressure plate is buckled to the limiting beam; when the handle shaking piece extrudes the elastic piece in a rotating mode around the second pin shaft, the limiting pressing plate is embedded into the avoiding groove.

Preferably, the elastic member includes two piston springs, two spring mounting holes are formed in an end face of the other end of the face cover in the length direction, and at least a part of each of the two piston springs is mounted and fixed in the two spring mounting holes.

Preferably, the buckle making base comprises a making frame, a first making core and a second making core, one end of the first making core is pivotally connected and fixed to a first end of the making frame through a third pin shaft, one end of the second making core is pivotally connected and fixed to a second end of the making frame through a fourth pin shaft, and the face cover is pivotally connected and fixed to the other end of the second making core through the first pin shaft; the first core making device is buckled on the frame through rotating around the third pin shaft, and the second core making device is buckled on the frame through rotating around the fourth pin shaft;

the both sides of the central authorities on the width of system frame have respectively along length direction set up and with the first empty slot of keeping away of the main part looks adaptation of first system core and with the second of the main part looks adaptation of second system core keeps away the empty slot, and first system core and second system core lock respectively arrive when making on the frame, the main part embedding of system core is in the first empty slot of keeping away, just the main part embedding of second system core is in the second keeps away in the empty slot.

The utility model also provides a watch, including a first watchband, a second watchband and a watch buckle which can adjust the tightness of the watchband by the automatic locking buckle, wherein one end of the first watchband is pivoted and fixed to the buckle making base, and one end of the second watchband is inserted into the locking position of the locking buckle component; the inner side surface of the second watchband is provided with a groove or a hole arranged along the length direction, and the groove or the hole is buckled and connected to the face cover through the hook structure.

The utility model discloses automatic hasp formula is adjusted table of watchband elasticity and is buckled and wrist-watch has following beneficial effect: through setting up hasp subassembly and elastic component, and bulldoze the hasp subassembly by the elastic component and can fix the watchband in the face lid, moreover, the steam generator is simple in structure reliable, and can not lead to the overall structure that the table was detained to complicate, can make the spare part that the table was detained less, make things convenient for the dismouting, the operation efficiency is improved, and when colluding the groove or the hole that the knot structure breaks away from the watchband, the watchband can be pulled out from the locking position, with the separation operation between the table knot of realizing watchband and above-mentioned automatic hasp formula regulation watchband elasticity, the wearing mode has been increased, and the steam generator has high practicability.

Drawings

Fig. 1 is a schematic structural view illustrating the disassembly of a watch buckle for automatically locking and adjusting the tightness of a watch band according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a cross section of the watch buckle for automatically locking and buckling the watch strap according to the embodiment of the present invention;

fig. 3 is an assembly operation diagram of the watch buckle for automatically locking and buckling the watch strap tightness, provided by the embodiment of the present invention, wherein: FIG. (a) is a structural schematic diagram of a watch buckle which automatically locks and adjusts the tightness of a watchband in a natural state; FIG. b is a schematic diagram of the operation of the driving portion; FIG. c is a schematic sectional view showing the band in a telescopic motion; and (d) is a cross-sectional view of the buckle structure and the watchband.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1, it is the embodiment of the utility model provides an automatic hasp formula is adjusted the structure schematic diagram of the decomposition of the table of watchband elasticity is detained, and this automatic hasp formula is adjusted the table of watchband elasticity and is detained and can be applied to wearing equipment technical field, especially in the wrist-watch. Referring to fig. 2, the watch buckle for automatically locking and adjusting the tightness of the watchband in this embodiment includes a buckle making base 1 and a surface cover 2, one end of the surface cover 2 is pivotally connected to the buckle making base 1 through a first pin 3, and the surface cover 2 can be rotationally locked to the buckle making base 1 around the first pin 3 or rotationally separated from the buckle making base 1 around the first pin 3, so as to increase or decrease the total length of the watch buckle for automatically locking and adjusting the tightness of the watchband.

Specifically, the watch buckle for automatically locking and adjusting the tightness of the watchband further comprises a locking assembly 4 and an elastic member 5 (e.g., a spring assembly), wherein the elastic member 5 is fixedly installed on the face cover 2, and the locking assembly 4 is pivotally connected to the face cover 2 through a second pin shaft 6, i.e., the locking assembly 4 can rotate relative to the face cover 2 through a second pin shaft 6, and the locking assembly 4 can abut against the elastic member 5 through rotation of the second pin shaft 6. In practical application, the locking assembly 4 is preferably pivotally connected to one end of the face cover 2 far away from the locking base 1 by a second pin shaft 6, and the second pin shaft 6 is disposed along a length direction perpendicular to the face cover 2, so that the locking assembly 4 rotates around the width direction of the face cover 2.

The locking assembly 4 of this embodiment includes a locking position for inserting the watch band, and a driving portion and a hooking portion respectively disposed at two sides of the locking position, wherein the hooking portion is provided with a hooking structure 421, and the hooking structure 421 is adapted to a groove or a hole formed along the length direction of the watch band. In addition, the driving part is connected with the elastic member 5 to realize the interaction between the latch assembly 4 and the elastic member 5. Since the locking assembly 4 can rotate around the second pin 6, the elastic member 5 is preferably connected with the elastic member 5 in an abutting manner, which is beneficial to the layout design of the elastic member 5 and enables the driving part and the elastic member 5 to be reliably connected.

Further, when the driving portion is connected to the elastic member 5, at least a portion of the hooking structure 421 is inserted in front of the locking position along the length direction of the face cover 2 (i.e., the locking position faces the side of the face cover 2). Therefore, when the watchband is inserted into the face cover 2 through the locking position, the hook structure 421 can be fixedly connected to the groove (sawtooth groove) or hole (through holes) of the watchband, and the driving portion is continuously subjected to the elastic force of the elastic member 5, so that the hook structure 421 does not separate from the groove or hole of the watchband, and the watchband can be reliably locked in the face cover 2 and the locking position.

The shape and the size of above-mentioned locking position and the shape and the size looks adaptation of watchband can carry out effective spacing to the watchband like this, improves the watchband and inserts the stability in face lid 2 through locking position, prevents the watchband drunkenness, makes the groove or the hole of fixedly receiving the watchband that collude knot portion can be high-efficient and reliable simultaneously. Moreover, when the matching structure of the watch band is a sawtooth groove arranged along the length direction of the watch band, the hook structure 421 is a buckle structure matched with the sawtooth groove; when the matching structure of the watch band is a plurality of through holes distributed along the length direction of the watch band, the hook structure 421 is a plug-in structure matched with the through holes.

As shown in fig. 3, when the adjustment operation is performed, a force can be applied to the locking assembly 4, so that the driving portion rotates around the second pin shaft 6 toward the elastic member 5, and the elastic member 5 is squeezed by overcoming the elastic force, so that the hook structure 421 moves in the direction away from the face cover 2, so as to be away from the front of the locking position along the length direction of the face cover 2, at this time, only the watchband needs to be grasped, so that the watchband makes a telescopic motion along the length direction relative to the face cover 2 and the locking position, the length of the overlapped part of the watchband and the face cover 2 can be adjusted, until the wearing tightness is proper, the pushing force applied to the locking assembly 4 is cancelled, so that the hook structure 421 is fixedly connected to the groove or hole of the watchband under the elastic restoring force of the elastic member 5.

Above-mentioned watch of watchband elasticity is adjusted to automatic hasp formula is detained through setting up hasp subassembly 4 and elastic component 5 to push away by elastic component 5 and press hasp subassembly 4 and can fix the watchband in face lid 2, simple structure is reliable, and convenient operation is swift, still can not lead to the overall structure of table knot to complicate, can make the spare part that the table was detained less, and convenient equipment and dismantlement operation can effectively improve operating efficiency. And, when colluding knot structure 421 and break away from the groove or the hole of watchband, the watchband can be pulled out from locking position to realize watchband and above-mentioned automatic locking formula and adjust the separation operation between the watchband elasticity's the watch buckle, increased the wearing methods, had higher practicality.

In an embodiment of the present invention, the latch assembly 4 includes a rocking handle member 41 and a latch member 42, and the rocking handle member 41 is pivotally connected to the face cover 2 by a second pin shaft 6 and constitutes the driving portion. In addition, the lock rod member 42 is pivotally fixed to the face cover 2 by the second pin shaft 6 and constitutes the above-mentioned hooking portion. Certainly, in practical application, the rocking handle piece 41 and the lock rod piece 42 can also be assembled together and then pivotally connected and fixed to the face cover 2 through the second pin shaft 6, so that the assembly difficulty can be greatly reduced, and the modular design and assembly are adopted; alternatively, the rocking handle member 41 and the locking lever member 42 are integrally formed, so that the number of parts for assembly can be reduced, and the structure of the watch buckle can be simplified.

Specifically, the rocking handle member 41 includes a cross member 411 and two arms 412, and the two arms 412 are integrally formed with both ends of the rocking handle member 41, respectively. The rocking handle member 41 is pivotally connected to both sides of the face cover 2 via the two support arms 412, so that the rocking handle member 41 is pivotally connected to the face cover 2. Specifically, the locking position is defined by the cross member 411, the two arms 412 and the lock rod member 42. The two arms 412 are parallel to each other, and the distance between the two arms 412 is greater than or equal to the width dimension of the wristband.

The free ends of the two support arms 412 are respectively provided with a first locking hole 413, the two ends of the locking rod 42 are respectively provided with a second locking hole 423, and the two side walls of one end of the surface cover 2 far away from the fastening base 1 are respectively provided with a pivoting hole 21. Further, the second pin 6 includes two pivot bolts 60, and the rocking handle 41 and the lock rod 42 are pivotally connected to the front cover 2 by inserting the two pivot bolts 60 into the first locking hole 413, the pivot hole 21 and the second locking hole 423, respectively. The pivot connection is the most preferable connection between the rocking handle 41 and the locking rod 42 and the panel cover 2, but the connection between the rocking handle 41 and the locking rod 42 and the panel cover 2 may be adjusted according to the actual situation.

Specifically, the distance between the two arms 412 is greater than or equal to the distance between the two side walls of the face cover 2, and the length of the lock rod 42 is less than or equal to the distance between the two side walls of the face cover 2, i.e. the lock rod 42 can be disposed between the two side walls of the face cover 2, and the two arms 412 of the rocking handle 41 can be disposed outside the two side walls of the face cover 2, and then are pivoted together through two pivoting shafts. Because the lock rod piece 42 and the rocking handle piece 41 rotate around the second pin shaft 6, the lock rod piece 42 and the rocking handle piece 41 are respectively arranged at two sides of the side wall of the face cover 2, so that the middle part of the pivoting bolt 60 (pivoted with the side walls at two sides of the face cover 2) is stressed, balanced stress is realized, the service life of the pivoting bolt 60 is prolonged, and deformation or damage caused by stress at one side is avoided.

Each pivot bolt 60 includes one-level locking section 61, pivot section 62 and the second grade locking section 63 that distributes in proper order, and one-level locking section 61 and first locking hole position 413 looks adaptation, pivot section 62 and pivot hole 21 looks adaptation, second grade locking section 63 and second locking hole position 423 looks adaptation. Therefore, the pivot bolt 60 can pivotally connect and fix the rocking handle piece 41 and the lock rod piece 42 on the face cover 2 in a manner that the first-stage locking section 61 is matched with the first locking hole 413, the pivot section 62 is matched with the pivot hole 21, and the second-stage locking section 63 is matched with the second locking hole 423, so that the rocking handle piece 41 and the lock rod piece 42 do not move relatively, and the driving part can be synchronously driven to rotate the hooking part when rotating.

Moreover, the outer diameter of the first-stage locking section 61 is greater than that of the pivoting section 62, and the outer diameter of the pivoting section 62 is greater than that of the second-stage locking section 63, so that the two pivoting bolts 60 can be inserted from the first locking hole 413 of the support arm 412, and the second-stage locking section 63 can be inserted into the second locking hole 423 matched with the locking rod 42 after passing through the first locking hole 413 and the pivoting hole 21.

Because the first locking hole 413 comprises a limiting hole with a quincunx cross section, and a locking head matched with the limiting hole is arranged on one side of the first-stage locking section 61 far away from the pivoting section 62, the rocking handle part 41 can be synchronously connected (i.e. synchronously rotated) with the pivoting bolt 60 in a mode of matching the limiting hole and the locking head, and the structure is simple and reasonable, and the connection is firm and reliable. Of course, in practical applications, the rocking handle member 41 may be synchronously connected with the pivot bolt 60 by other matching methods, which is determined according to practical situations. For example, a locking groove is formed in the primary locking section 61, a jackscrew hole communicated to the first locking hole 413 is formed in the outer wall of the support arm 412, and the jackscrew assembled in the jackscrew hole is locked and connected to the locking groove to realize synchronous connection between the handle member 41 and the pivot bolt 60.

The locking bar member 42 of the present embodiment includes a fitting hole provided on the outer wall, and a fastening member (e.g., a jack screw) installed in the fitting hole, and the fitting hole penetrates to the second locking hole portion 423, so that at least a portion of the fastening member installed in the fitting hole can be snapped into the first locking hole portion 413. In addition, second grade locking section 63 includes ring groove and locates the first profile structure on the outer wall, and first profile structure sets up along the axial of pin joint bolt 60 respectively.

Furthermore, a second thread structure is arranged in the second locking hole 423, and the second thread structure is matched with the first thread structure of the pivot bolt 60, so that the lock rod 42 can be synchronously connected with the pivot bolt 60 (i.e. synchronously rotated) in a manner that the first thread structure and the second thread structure are matched together, so as to be pivoted and fixed with the face cover 2, and synchronously connected with the crank piece 41 through the pivot bolt 60, thereby driving the crank piece 41 and driving the lock rod 42 to rotate.

Because the rocking handle part 41 is synchronously connected with the pin joint bolt 60 in a mode of matching the limiting hole with the locking head, and the cross section of the limiting hole is in a quincunx shape, the matching position between the limiting hole and the locking head can be adjusted, so that the relative position between the rocking handle part 41 and the locking rod part 42 can be adjusted, and the hooking direction of the hooking structure 421 can be effectively adjusted.

Specifically, when the secondary locking section 63 of the pivot bolt 60 is inserted into the second locking hole 423, at least a portion of the fastener in the assembly hole is inserted into and snapped into the annular groove of the pivot bolt 60 to lock and fix the pivot bolt 60 in the second locking hole 423. This connected mode is firm reliable, can effectively avoid the second grade locking section 63 of pivot bolt 60 to deviate from second locking hole position 423, guarantees the reliable cooperation between first profile of tooth structure and the second profile of tooth structure. Because the setting of second grade locking section 63 is ring groove, so be favorable to the fastener high efficiency joint to ring groove to reduce the assembly degree of difficulty, still can realize the adjustment operation of first profile of tooth structure and second profile of tooth structure simultaneously, in order to adjust the relative position between lock member 42 and pin joint bolt 60.

In another embodiment of the present invention, the locking rod 42 includes a main rod 422, and the hooking structure 421 is vertically connected to the main rod 422. The hook structure 421 is preferably arranged in an L-shape, so that the fixed connection portion (i.e., the free end of the hook structure 421) of the hook structure 421 and the watch band is far away from the locking position, thereby increasing the moving range of the fixed connection portion of the hook structure 421, and enabling the hook structure 421 to be completely separated from the groove or the hole of the watch band.

Specifically, the bottom surface of above-mentioned watchband is the sawtooth groove, and the free end of above-mentioned hook structure 421 is equipped with chamfer inclined plane 421a towards one side of locking position, and when the watchband was slided towards face lid 2 place orientation, the sawtooth groove extrusion chamfer inclined plane 421a of watchband to can make rocking handle spare 41 rotatory around second round pin axle 6, and overcome elasticity extrusion elastic component 5, in order to open hook structure 421, need not to drive rocking handle spare 41 and can tighten up the watchband, the convenience of operation has been improved greatly.

In addition, the rocking handle part 41 further comprises a limiting pressure plate 414, one end of the limiting pressure plate 414 is fixedly connected with the cross beam 411, and a fastening position 414a is arranged on the bottom surface of the limiting pressure plate 414. In addition, the top surface of the surface cover 2 is provided with a limiting beam 22 and an avoiding groove 23, wherein the limiting beam 22 and the avoiding groove 23 are adjacently arranged, and the limiting beam 22 is matched with the buckling position 414 a. Therefore, when the rocking handle 41 moves towards the hooking direction of the hooking structure 421 under the pushing action of the elastic member 5, the buckling position 414a of the limiting pressing plate 414 is buckled to the limiting beam 22 to restrict the rotation stroke of the rocking handle 41 towards the direction away from the elastic member 5. In addition, when the rocking handle piece 41 rotates around the second pin shaft 6 to extrude the elastic piece 5, the limiting pressing plate 414 is embedded into the avoiding groove 23, so that the situation that the hooking structure 421 cannot be effectively separated from the groove or the hole of the watchband due to the fact that the limiting pressing plate 414 is abutted to the face cover 2 is avoided. In operation, the rocking handle member 41 can also be driven by pressing the limit pressing plate 414, so that the rocking handle member 41 presses the elastic member 5.

The elastic member 5 of the present embodiment includes two piston springs, and the end surface of the other end of the face cover 2 is provided with two spring mounting holes 24 arranged along the length direction, and the two spring mounting holes 24 are respectively fitted with the fixing portions of the two piston springs, so that the two piston springs can be mounted and fixed on the face cover 2 in such a manner that the fixing portions are respectively fitted into the two spring mounting holes 24. In practical applications, the number of the piston springs 2 can be determined according to practical situations.

Particularly, the buckle making base 1 comprises a making frame 11, a first making core 12 and a second making core 13, one end of the first making core 12 is pivotally connected and fixed to a first end of the making frame 11 through a third pin shaft 7, one end of the second making core 13 is pivotally connected and fixed to a second end of the making frame 11 through a fourth pin shaft 8, and the face cover 2 is pivotally connected and fixed to the other end of the second making core 13 through a first pin shaft 3, so that the first making core 12 can be buckled to the making frame 11 through rotating around the third pin shaft 7, the second making core 13 can be buckled to the making frame 11 through rotating around the fourth pin shaft 8, the wearing length can be increased by unfolding the first making core 12 and the second making core 13, and then the first making core 12 and the second making core 13 are buckled to the making frame 11 to reduce the wearing length, and the wearing function is realized.

Preferably, the two sides of the center of the width of the frame 11 are respectively provided with a first empty avoiding slot and a second empty avoiding slot which are arranged along the length direction, the first empty avoiding slot is matched with the main body of the first core making 12, and the second empty avoiding slot is matched with the main body of the second core making 13, so that when the first core making 12 is buckled on the frame 11, the main body of the first core making 12 can be embedded in the first empty avoiding slot, and when the second core making 13 is buckled on the frame 11, the main body of the second core making 13 can be embedded in the second empty avoiding slot, so that the structural strength of the frame 11 can be ensured, the volume of the buckle base 1 can be reduced, and the wearing comfort can be prevented from being influenced.

The utility model also provides a wrist-watch, this wrist-watch include that first watchband, second watchband and foretell automatic locking formula adjust the table of watchband elasticity and buckle, and wherein the one end pin joint of first watchband is fixed to the system and is detained base 1, and the locking position of hasp subassembly 4 is inserted to the one end of second watchband. And, the inner side of the second band has a slot or hole arranged along the length direction, and is fixedly connected to the face cover 2 by being buckled to the slot or hole by the hook structure 421.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The watch buckle capable of automatically locking and adjusting the tightness of the watchband comprises a buckle making base and a surface cover, wherein one end of the surface cover is fixedly pivoted on the buckle making base through a first pin shaft; the locking assembly comprises a locking position for inserting a watchband, and a driving part and a hooking part which are respectively arranged at two sides of the locking position, the hooking part is provided with a hooking structure matched with a groove or a hole which is arranged on the watchband along the length direction, the driving part is connected with the elastic piece and drives the driving part to rotate in a pushing and pressing mode of the elastic piece, so that the hooking structure is fixedly connected to the groove or the hole of the watchband to lock the watchband in the face cover; the hook structure is separated from the groove or the hole in a mode that the driving part rotates around the second pin shaft to extrude the elastic piece, so that the watchband can do telescopic motion along the length direction relative to the surface cover and the locking position.

2. The watch buckle for automatically locking and buckling to adjust the tightness of the watch band according to claim 1, wherein the locking assembly comprises a rocking handle member and a locking rod member, and the rocking handle member is pivotally fixed to the face cover by the second pin shaft and constitutes the driving part; the lock rod piece is pivoted and fixed to the face cover through the second pin shaft and forms the hook part;

3. The watch buckle capable of automatically locking and buckling to adjust the tightness of the watchband according to claim 2, wherein the free ends of the two support arms are respectively provided with a first locking hole site, and the two ends of the lock rod member are respectively provided with a second locking hole site; the side walls of two sides of the other end of the face cover are respectively provided with a pivoting hole, the distance between the two support arms is greater than or equal to the distance between the side walls of the two sides of the face cover, and the length of the lock rod piece is less than or equal to the distance between the side walls of the two sides of the face cover;

4. The watch buckle for automatically locking and releasing the tightness of the watch band according to claim 3, wherein each of the pivot bolts comprises a first-stage locking section adapted to the first locking hole, a pivot section adapted to the pivot hole, and a second-stage locking section adapted to the second locking hole, and wherein the outer diameter of the first-stage locking section is larger than that of the pivot section, and the outer diameter of the pivot section is larger than that of the second-stage locking section; when the rocking handle piece and the locking rod piece are pivotally connected and fixed to the face cover, the two pivoting bolts limit and fix the rocking handle piece through the matching of the primary locking section and the first locking hole, and limit and fix the locking rod piece through the matching of the secondary locking section and the second locking hole, so that the relative motion between the rocking handle piece and the locking rod piece is avoided.

5. The watch buckle capable of automatically locking and buckling to adjust the tightness of the watch band according to claim 4, wherein the first locking hole comprises a limiting hole with a quincunx cross section, a locking head matched with the limiting hole is arranged on one side of the first-stage locking section away from the pivoting section, and the rocking handle piece rotates synchronously with the pivoting bolt in a manner that the limiting hole is matched with the locking head.

6. The watch buckle for automatically locking and releasing the tightness of the watch band according to claim 4 or 5, wherein the lock bar member comprises an assembly hole formed in an outer wall and a fastening member installed in the assembly hole, and the assembly hole penetrates through the second locking hole; the secondary locking section comprises an annular clamping groove and a first tooth pattern structure arranged on the outer wall;

7. The watch buckle capable of automatically locking and buckling to adjust the tightness of the watch band according to claim 2, wherein the lock rod comprises a main rod body, and the hook structure is L-shaped and vertically connected to the main rod body; a chamfer inclined plane is arranged on one side, facing the locking position, of the free end of the hooking structure, and when the watchband slides towards the direction of the face cover, the groove of the watchband extrudes the chamfer inclined plane, so that the rocking handle piece rotates around the second pin shaft and extrudes the elastic piece;

8. The watch buckle capable of automatically locking and releasing the tightness of the watch band according to claim 1, wherein the elastic member comprises two piston springs, the end surface of the other end of the face cover is provided with two spring mounting holes arranged along the length direction, and at least a part of each of the two piston springs is fixedly mounted in the two spring mounting holes.

9. The watch buckle capable of automatically locking and buckling to adjust the tightness of the watch band according to claim 1, wherein the buckle base comprises a frame, a first core and a second core, one end of the first core is pivotally fixed to a first end of the frame by a third pin, one end of the second core is pivotally fixed to a second end of the frame by a fourth pin, and the face cover is pivotally fixed to the other end of the second core by a first pin; the first core making device is buckled on the frame through rotating around the third pin shaft, and the second core making device is buckled on the frame through rotating around the fourth pin shaft;

10. A watch comprising a first band, a second band and a watch buckle for adjusting the tightness of the band according to the automatic locking buckle of any one of claims 1 to 9, wherein one end of the first band is pivotally fixed to the buckle making base, and one end of the second band is inserted into the locking position of the locking buckle assembly; the inner side surface of the second watchband is provided with a groove or a hole arranged along the length direction, and the groove or the hole is buckled and connected to the face cover through the hook structure.