Watchband quick-release connecting piece and watch

Abstract

The utility model provides a quick-release connecting piece for a watchband. The quick-release connecting piece comprises a watchband head bead, a key, an elastic piece and two telescopic needles, a key groove and two telescopic needle holes are formed in the watchband head bead, an opening of the key groove is located in the bottom surface of the watchband head bead, the key comprises two clamping parts which are arranged at an interval, and a clamping groove is formed in each clamping part; the tail part of each telescopic needle is provided with a stop block part, a clamping section and a circumferential groove; the two telescopic needles are respectively arranged in the two telescopic needle holes, the key and the elastic piece are both arranged in the key groove, and the two telescopic needles are respectively inserted into the clamping grooves of the two clamping parts of the key from the circumferential groove and are clamped into the inner sides of the clamping grooves from the two clamping sections under the pushing of the elastic piece; and at least one of the inner side of the clamping part of the key and the inner side of the stop block part of the telescopic needle is provided with a sliding guide surface. According to the utility model, the disassembly and assembly of the watchband are greatly facilitated, and meanwhile, the assembly of the quick disassembly connecting piece of the watchband is also facilitated.

Description

Technical Field

[0001] The utility model relates to the field of watches, and more particularly to a watchband quick-release connector and a watch. Background Art

[0002] A watch, also known as a wristwatch, is an instrument worn on the wrist to measure and display time. Watches are typically made of leather, rubber, nylon, stainless steel, or other materials, with a strap that secures the dial, which displays the time, to the wrist. The dial typically consists of a case and a timing mechanism housed within it. Mounting portions for the strap are typically located on either side of the case. The strap securely connects to the case by connecting its head end to the mounting portion, securing the dial to the wearer's wrist.

[0003] Currently, existing watch straps are mainly fixed to the side of the watch case by means of ear pins and screws, so the disassembly and assembly of the watch strap requires the use of tools, which makes the disassembly and assembly of the watch strap more troublesome. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a watch strap quick-release connector and a watch in order to solve the problem that the watch strap is difficult to assemble and disassemble.

[0005] The utility model solves the above technical problems by providing a quick-release connector for a watch strap, which is used to assemble the watch strap to the watch head. The quick-release connector includes a watch strap head bead, a button, an elastic member and two telescopic pins.

[0006] The watch strap head bead is provided with a key slot and two telescopic pin holes, and the opening of the key slot is located on the bottom surface of the watch strap head bead, and the two telescopic pin holes are respectively penetrated by two slot walls on the key slot that are perpendicular to the width direction of the watch strap to two side walls of the watch strap head bead that are perpendicular to the width direction of the watch strap: the key includes two clamping parts arranged at intervals, each of the clamping parts is formed with a card slot, and the width of the opening of the card slot is smaller than the width of the inner side of the card slot; the tail of each telescopic pin is provided with a stop block part, a card connection section and a circumferential groove arranged in sequence along the axial direction, the width of the opening of the card slot is larger than the diameter of the telescopic needle at the circumferential groove and smaller than the diameter of the card connection section, the width of the inner side of the card slot is adapted to the diameter of the card connection section and smaller than the diameter of the stop block part;

[0007] The two telescopic needles are respectively installed in the two telescopic pin holes of the watch strap head bead, and the button and the elastic member are both installed in the button slot of the watch strap head bead, and the two ends of the elastic member are respectively against the two telescopic needles, and the two telescopic needles are respectively embedded in the card slots of the two clamping parts of the button from the circumferential groove, and are clamped into the inner side of the card slot by the two clamping sections under the push of the elastic member; at least one of the inner side of the clamping part of the button and the inner side of the stop block part of the telescopic needle has a sliding guide surface, and when the button is pushed toward the bottom of the button slot, the sliding guide surface pushes the two telescopic needles to move toward the elastic member respectively so that the heads of the two telescopic needles are retracted into the two telescopic pin holes respectively.

[0008] As a further improvement of the present invention, the tails of the two telescopic needles have a first axial blind hole, the elastic member is composed of a compression spring, and both ends of the compression spring are respectively inserted into the first blind holes of the two telescopic needles.

[0009] As a further improvement of the present invention, when the elastic member pushes the heads of the two telescopic needles to extend out of the two telescopic needle holes respectively, the stopper parts of the two telescopic needles push the top surface of the button to protrude from the bottom surface of the strap head bead through the sliding guide surface.

[0010] As a further improvement of the present invention, the distance between the top surface of the key and the free end of the clamping portion is adapted to the depth of the key slot.

[0011] As a further improvement of the present invention, the inner side of the clamping portion of the button and the inner side of the stopper portion of the telescopic needle are respectively provided with sliding guide surfaces.

[0012] As a further improvement of the present invention, the key slot is in the shape of a rectangular parallelepiped, the spacing between the two clamping parts is adapted to the spacing between the two slot walls on the key slot that are perpendicular to the width direction of the strap, and the spacing between the two clamping parts is greater than twice the sum of the axial lengths of the stop block part and the clamping section on the telescopic needle.

[0013] As a further improvement of the present invention, the two mounting ears of the watch head respectively have two coaxial second blind holes; the two telescopic pin holes on the watch strap head bead are coaxial, and the head of each telescopic pin has a needle head that matches the diameter of the second blind hole.

[0014] As a further improvement of the present invention, the diameter of the portion between the needle head and the circumferential groove of each telescopic needle is adapted to the diameter of the telescopic needle hole, and the diameter of the stop block portion is not greater than the diameter of the telescopic needle hole.

[0015] As a further improvement of the present invention, the strap head bead has a mounting groove and a pinhole for connecting the strap, the mounting groove is located on the side wall perpendicular to the length direction of the strap, and the pinhole is parallel to the telescopic pinhole and passes through the mounting groove.

[0016] The utility model also provides a watch, comprising a watch head, a watch strap and the watch strap quick-release connector as described above, wherein the watch strap is assembled to the watch head via the watch strap quick-release connector.

[0017] The utility model has the following beneficial effects: by arranging two clamping parts with C-shaped slots on the button, the button can be assembled with the two telescopic needles through the circumferential groove of the telescopic needle, and at the same time, the two telescopic needles are pushed to move by the sliding guide surface of the inner side of the clamping part or the block part of the telescopic needle, so that the heads of the two telescopic needles are retracted into the telescopic pin holes, which greatly facilitates the disassembly and assembly of the watch strap and also facilitates the assembly of the watch strap quick-release connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the watch strap quick-release connector provided by an embodiment of the present invention being assembled to a watch head.

[0019] Figure 2 It is a schematic diagram of the exploded structure of the watch strap quick-release connector provided in an embodiment of the present utility model.

[0020] Figure 3 It is a schematic diagram of the combined structure of a button, an elastic member and a telescopic pin in a watch strap quick-release connector provided by an embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the clamping portion of the button in the watchband quick-release connector provided by an embodiment of the present utility model.

[0022] Figure 5 It is a schematic cross-sectional structure diagram of the combination of a button, an elastic member and a telescopic pin in a watch strap quick-release connector provided by an embodiment of the present utility model.

[0023] Figure 6 This is a schematic diagram of disassembling a watch strap using the watch strap quick-release connector provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, 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 only used to explain the present invention and are not intended to limit the present invention.

[0025] like Figure 2 、 Figure 3The figure shows a schematic diagram of the structure of the watch strap quick-release connector provided by an embodiment of the present invention. The watch strap quick-release connector can be fixed to the end of the watch strap (which can be a metal watch strap or a leather watch strap) and is used to assemble the watch strap to the watch head. The watch strap quick-release connector of this embodiment includes a watch strap head bead 21, a button 22, an elastic member 23 and two telescopic pins 24. The watch strap head bead 21 can be made of a hard material such as stainless steel, and has a structure connected to the watch strap. Figure 1 As shown, the overall shape and size of the watch strap bead 21 can be adapted to the shape and size of the two mounting ears 11 of the watch head 10, and it can be assembled between the mounting ears 11 of the two watch heads 10. The button 22, the elastic member 23 and the two telescopic pins 24 are respectively mounted on the watch strap bead 21, and after being assembled, they are integrally assembled to the watch head 10.

[0026] The strap bead 21 has a key slot 211 and two telescopic pinholes 212. The key slot 211 opens at the bottom of the strap bead 21 (when the watch is worn, the bottom of the strap bead 21 faces the wrist). The two telescopic pinholes 212 extend from two groove walls perpendicular to the width of the strap on the key slot 211 to two side walls perpendicular to the width of the strap on the strap bead 21. Specifically, the key slot 211 can be formed as a rectangular parallelepiped groove, which can be located in the middle of the strap bead 21 in the width direction of the strap.

[0027] The button 22 includes two spaced apart clamping portions 221 , which are arranged in parallel, and each clamping portion 221 is formed with a slot 2212 . Figure 4 As shown, the width D1 of the slot 2212 at its opening is smaller than the width D2 of the inner side (i.e., away from the opening) of the slot 2212, resulting in a C-shaped cross-section. Specifically, each clamping portion 221 includes two clamping arms 2211, with the slot 2212 located between the two clamping arms 2211. In other words, the button 22 consists of a press plate and four clamping arms 2211 located on the same side of the press plate. To ensure structural strength, the button 22 can be integrally formed from a hard material such as stainless steel.

[0028] The two telescopic needles 24 may have the same shape and size, with each needle 24 generally being needle-shaped (i.e., a relatively thin column). The tail of each telescopic needle 24 includes a stopper 241, a snap-fit ​​section 242, and a circumferential groove 243. The stopper 241, snap-fit ​​section 242, and circumferential groove 243 may each have a circular cross-section. The stopper 241, snap-fit ​​section 242, and circumferential groove 243 are sequentially arranged along the axial direction of the telescopic needle 24 from the tail of the telescopic needle 24. The diameter of the telescopic needle 24 is smallest at the circumferential groove 243, followed by the snap-fit ​​end 242, and largest at the stopper 241. Furthermore, the width D1 of the opening of the snap-fit ​​groove 2212 is greater than the diameter of the telescopic needle 24 at the circumferential groove 243 and smaller than the diameter of the snap-fit ​​section 242. The inner width D2 of the snap-fit ​​groove 2212 matches the diameter of the snap-fit ​​section 242 and is smaller than the diameter of the stopper 241.

[0029] The two telescopic needles 24 are respectively installed in the two telescopic pin holes 212 of the watch strap head bead 21, and the button 22 and the elastic member 23 are both installed in the button slot 211 of the watch strap head bead 21, and the two ends of the elastic member 23 are respectively against the two telescopic needles 24. The two telescopic needles 24 are respectively inserted into the card slots 2212 of the two clamping parts 221 of the button 22 from the circumferential groove 243, and are clamped into the inner side of the card slot 2212 by the two clamping sections 342 under the push of the elastic member 23. At least one of the inner side of the clamping portion 221 of the button 22 (i.e., the side of each clamping portion 221 facing the other clamping portion 221) and the inner side of the stopper portion 241 of the telescopic needle 24 (i.e., the side facing the head of the telescopic needle 24) has a sliding guide surface 222. When the button 22 is pushed toward the bottom of the button slot 211, the sliding guide surface 222 pushes the stopper portions 241 of the two telescopic needles 24, causing the two telescopic needles 24 to move toward the elastic member 23 and compress the elastic member 23, thereby causing the heads of the two telescopic needles 24 to retract into the two telescopic needle holes 212. In other words, the sliding guide surface 222 can convert the movement of the button 22 perpendicular to the bottom surface of the watch strap head bead 21 into the movement of the two telescopic needles 24 parallel to the bottom surface of the watch strap head bead 21. Specifically, when the sliding guide surface 222 is located on the button 22, the sliding guide surface 222 can be composed of an inclined surface connected between the pressing plate of the button 22 and the clamping portion 221; when the sliding guide surface 222 is located on the block portion 241, the sliding guide surface 222 can be composed of a chamfer located on the inner side of the block portion 241.

[0030] When the button 22 is not subjected to force (i.e., not pressed), the elastic member 23 pushes the two telescopic pins 24 to move in a direction away from the elastic member 23, so that the heads of the telescopic pins 24 protrude out of the telescopic pin holes 212. At the same time, when the stopper portion 241 of the telescopic pin 24 moves away from the elastic member 23, the sliding guide surface 222 pushes the button 22 to move in a direction away from the bottom of the button groove 211 until the inner side surface of the stopper portion 241 moves to the bottom of the sliding guide surface 222 (when the sliding guide surface 222 is located at the button), and at this time, the engaging section 242 of the telescopic pin 24 is engaged in the engaging groove 2212 of the button 22. Since the diameter of the engaging section 242 is larger than the width D1 of the opening of the engaging groove 2212, the button 22 will not fall out.

[0031] The above-mentioned watchband quick-release connector is configured with two clamping portions 221 having C-shaped slots 2212 on the button 22, so that the button 22 can be assembled with the two telescopic pins 24 through the circumferential groove 243 of the telescopic pin 24. At the same time, the two telescopic pins 24 are pushed to move by the sliding guide surface 222 of the inner side of the clamping portion 221 or the block portion 241 of the telescopic pin 24, so that the heads of the two telescopic pins 24 are retracted into the telescopic pin holes 212, which greatly facilitates the disassembly and assembly of the watchband, and also facilitates the assembly of the watchband quick-release connector. There is no need to use additional components to limit or fix the button, so that the thickness of the entire watchband quick-release connector can be relatively small.

[0032] like Figure 5 As shown, in one embodiment of the present invention, the tail portions of the two telescopic pins 24 each have an axial first blind hole 246. The first blind hole 246 extends from the end surface of the tail end of the telescopic pin 24 to the engaging section 242. Accordingly, the elastic member 23 is formed from a compression spring, with both ends of the compression spring inserted into the first blind holes 246 of the two telescopic pins 24. This structure facilitates assembly of the telescopic pin 24 and the elastic member 23 without increasing the thickness of the strap head bead 21.

[0033] In one embodiment of the present invention, when the elastic member 23 pushes the heads of the two telescopic pins 24 to extend out of the two telescopic pin holes 212, the stopper portions 241 of the two telescopic pins 24 push the top surface of the button 22 through the sliding guide surface 222 to protrude from the bottom surface of the strap head bead 21. That is, when the button 22 is not under force (i.e., when the watch strap is connected to the watch head), the button 22 protrudes from the bottom surface of the strap head bead 21. Figure 6 As shown in (a).

[0034] In particular, the distance between the top surface of the button 22 and the free end of the clamping portion 221 is adapted to the depth of the button groove 211. In this way, when the button 22 is pressed to be level with the bottom surface of the strap head bead 21, the free end of the clamping portion 221 reaches the bottom of the button groove 211, and the head of the telescopic needle 24 is completely retracted into the telescopic needle hole 212. At this time, the strap head bead 21 can be removed from the watch head 10. Figure 6 (b) shown.

[0035] In one embodiment of the present invention, to ensure smooth movement of the two retractable needles when the button 22 is pressed, sliding guide surfaces are provided on the inner side of the clamping portion 221 of the button 22 and the inner side of the stopper portion 241 of the retractable needle 24. The two abutting sliding guide surfaces can better achieve the conversion of the movement direction between the button 22 and the retractable needle 24.

[0036] In one embodiment of the present invention, the button slot 211 on the watchband head bead 21 is rectangular in shape. The spacing between the two clamping portions 221 on the button 22 matches the spacing between the two groove walls of the button slot 211, which are perpendicular to the width of the watchband. Furthermore, the spacing between the two clamping portions 221 is greater than twice the combined axial length of the stopper portion 241 and the engaging section 242 on the telescopic pin 24. This structure ensures that the button 22 does not wobble when pressed, improving stability.

[0037] In one embodiment of the present invention, the two mounting ears 11 of the watch head 10 each have two coaxial second blind holes 111. The two telescopic pin holes 212 on the watch strap head bead 21 are coaxial, and each telescopic pin 24 has a needle tip 244 that matches the diameter of the second blind hole 111. This structure improves the stability of the connection between the watch strap quick-release connector and the watch head 10.

[0038] In one embodiment of the present invention, the diameter of the portion 245 between the needle head 244 and the circumferential groove 243 of each telescopic needle 24 matches the diameter of the telescopic needle hole 212, and the diameter of the stopper portion 241 is no larger than the diameter of the telescopic needle hole 212. In this way, the telescopic needle 24 can be inserted from the outside of the telescopic needle hole 212 into the telescopic needle hole 212, facilitating assembly of the telescopic needle 24 to the watch strap head bead 21.

[0039] like Figure 2 As shown, in one embodiment of the present invention, the strap bead 21 has a mounting slot 215 and a pinhole 216 for connecting to the strap. The mounting slot 215 is located on a side wall perpendicular to the length of the strap, and the pinhole 216 is parallel to the telescopic pinhole 212 and passes through the mounting slot 215. This structure facilitates the connection between the strap bead 21 and the strap.

[0040] When assembling the above-mentioned watchband quick-release connector, the two telescopic parts 24 can be first inserted into the two telescopic pin holes 212 respectively, and the two ends of the elastic part 23 can be inserted into the first blind holes 246 of the two telescopic pin holes 212 respectively; then use a tool (such as a thin needle) to further push the telescopic needle 24 toward the key slot 211 from the outside of the telescopic pin hole 212 until the circumferential grooves 243 of the two telescopic pins 24 are exposed to the key slot 211; then insert the key 22 into the key slot 211, and insert the card slot 2212 into the circumferential groove 243 of the telescopic pin 24. At this time, release the tool for pushing the telescopic pin 24, and the two telescopic pins 24 are pushed outward by the action of the elastic part 23. At the same time, the sliding guide surface 222 pushes the key 22 outward, completing the assembly of the watchband quick-release connector.

[0041] Combine Figure 6 As shown, when the watch strap is assembled to the watch head 10 using the above-mentioned watch strap quick-release connector, it is only necessary to press the button 22 (the watch strap is already connected to the watch strap head bead 21) to retract the heads of the two telescopic pins 24 into the telescopic pin holes 212 of the watch strap head bead 21. Figure 6 (b) As shown; then put the watch strap head bead 21 between the two mounting ears 11 of the watch head, and release the button 22, the needles 244 of the two telescopic needles 24 are inserted into the second blind holes 111 on the two mounting ears 11, as shown Figure 6 (a) shows the strap connection completed. To remove the strap, simply press button 22 to retract the heads of the two telescopic pins 24 into the telescopic pin holes 212 of the strap head bead 21. At the same time, the needle heads 244 of the telescopic pins 24 leave the second blind holes 111. At this time, the strap head bead 21 can be removed from the watch head 10.

[0042] The utility model also provides a watch, comprising a watch head, a watch strap and the watch strap quick-release connector as described above, wherein the watch strap is assembled to the watch head via the watch strap quick-release connector.

[0043] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A watch strap quick-release connector for assembling a watch strap to a watch head, characterized in that: The watch strap quick-release connector includes a watch strap head bead, a button, an elastic part and two telescopic pins; The watch strap head bead is provided with a key slot and two telescopic pin holes, and the opening of the key slot is located on the bottom surface of the watch strap head bead, and the two telescopic pin holes are respectively penetrated by two slot walls on the key slot that are perpendicular to the width direction of the watch strap to two side walls of the watch strap head bead that are perpendicular to the width direction of the watch strap: the key includes two clamping parts arranged at intervals, each of the clamping parts is formed with a card slot, and the width of the opening of the card slot is smaller than the width of the inner side of the card slot; the tail of each telescopic pin is provided with a stop block part, a card connection section and a circumferential groove arranged in sequence along the axial direction, the width of the opening of the card slot is larger than the diameter of the telescopic needle at the circumferential groove and smaller than the diameter of the card connection section, the width of the inner side of the card slot is adapted to the diameter of the card connection section and smaller than the diameter of the stop block part; The two telescopic needles are respectively installed in the two telescopic pin holes of the watch strap head bead, and the button and the elastic member are both installed in the button slot of the watch strap head bead, and the two ends of the elastic member are respectively against the two telescopic needles, and the two telescopic needles are respectively embedded in the card slots of the two clamping parts of the button from the circumferential groove, and are clamped into the inner side of the card slot by the two clamping sections under the push of the elastic member; at least one of the inner side of the clamping part of the button and the inner side of the stop block part of the telescopic needle has a sliding guide surface, and when the button is pushed toward the bottom of the button slot, the sliding guide surface pushes the two telescopic needles to move toward the elastic member respectively so that the heads of the two telescopic needles are retracted into the two telescopic pin holes respectively.

2. The watch strap quick-release connector according to claim 1, characterized in that: The tails of the two telescopic needles are provided with first axial blind holes, the elastic member is composed of a compression spring, and both ends of the compression spring are respectively inserted into the first blind holes of the two telescopic needles.

3. The watch strap quick-release connector according to claim 1, characterized in that: When the elastic member pushes the heads of the two telescopic needles to extend out of the two telescopic needle holes respectively, the stopper parts of the two telescopic needles push the top surface of the button to protrude from the bottom surface of the watchband head bead through the sliding guide surface.

4. The watch strap quick-release connector according to claim 1, characterized in that: The distance between the top surface of the key and the free end of the clamping portion is adapted to the depth of the key slot.

5. The watch strap quick-release connector according to claim 1, characterized in that: The inner side of the clamping portion of the button and the inner side of the stopper portion of the telescopic needle are respectively provided with sliding guide surfaces.

6. The watch strap quick-release connector according to claim 1, characterized in that: The key slot is in the shape of a rectangular parallelepiped, and the spacing between the two clamping parts is adapted to the spacing between the two slot walls on the key slot that are perpendicular to the width direction of the watch strap, and the spacing between the two clamping parts is greater than twice the sum of the axial lengths of the stop block part and the clamping section on the telescopic needle.

7. The watch strap quick-release connector according to claim 1, characterized in that: The two mounting ears of the watch head are respectively provided with two coaxial second blind holes; the two telescopic needle holes on the watch strap head bead are coaxial, and the head of each telescopic needle has a needle head adapted to the diameter of the second blind hole.

8. The watch strap quick-release connector according to claim 7, characterized in that: The diameter of the portion between the needle head and the circumferential groove of each telescopic needle is adapted to the diameter of the telescopic needle hole, and the diameter of the stopper portion is not greater than the diameter of the telescopic needle hole.

9. The watch strap quick-release connector according to claim 1, characterized in that: The strap head bead has a mounting groove and a pinhole for connecting the strap, the mounting groove is located on the side wall perpendicular to the length direction of the strap, and the pinhole is parallel to the telescopic pinhole and passes through the mounting groove.

10. A watch, characterized in that: The watch comprises a watch head, a watch strap and a watch strap quick-release connector according to any one of claims 1 to 9, wherein the watch strap is assembled to the watch head via the watch strap quick-release connector.

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