CN110973776A - Wearable equipment and telescopic watchband thereof - Google Patents

Abstract

The invention discloses a telescopic watchband, which comprises an outer layer band body connected with one end of an equipment main body, an inner layer band body connected with the other end of the equipment main body, and a sliding support arranged in an inner cavity of the outer layer band body in a sliding manner, wherein the tail end of the inner layer band body is connected with the sliding support, a wave-shaped sliding rail with a wavy and undulating surface is arranged on the wall surface of the inner cavity of the outer layer band body along the length direction of the inner cavity, and an arch spring used for being tightly abutted to all levels of wave trough surfaces of the wave-shaped sliding rail is arranged on the surface of the sliding support. The telescopic watchband disclosed by the invention can improve the convenience of length adjustment operation, realize the continuous adjustment of the length of the watchband, enhance the operation feeling and feedback feeling of a user and improve the use experience of the user. The invention also discloses wearable equipment, which has the beneficial effects as described above.

Description

Wearable equipment and telescopic watchband thereof

Technical Field

The invention relates to the technical field of wearing equipment, in particular to a telescopic watchband. The invention also relates to a wearable device.

Background

With the development of electronic technology, more and more electronic devices have been widely used.

The rise of intelligent electronic equipment makes people be seen everywhere in daily life, and to some electronic equipment that the frequency of use is higher, the wearable structure of design into usually makes things convenient for people to hand-carry and use. Common wearable electronic equipment, including electronic watch, intelligent bracelet, intelligent wrist-watch etc. its primary structure all includes two parts, equipment main part and bandage promptly.

Taking a smart watch as an example, the device body is a watch case, and the strap is a watch band. Traditional watchband on the market all is the disconnect-type, need connect through the watchband, need all operate the watchband at every turn in the use, and it is more troublesome to dress. When different users use, because the wrist diameter is different, the length of watchband and dress space also need synchronous regulation.

Present flexible watchband, its flexible length's regulation mode all carries out hierarchical formula length adjustment through similar structures such as buckle, can only wind the watchband earlier and wear the regulation of length again one hand after on the wrist when wearing, the operation is inconvenient and troublesome, can't realize the continuous adjustment of watchband length, can only realize adjusting discretely through the mode that inserts another buckle after taking out from one of them buckle with the table knot again, and do not have feedback sense (like sound feedback, effort feedback etc.) and operation sense to the user at length adjustment's in-process, user experience is relatively poor.

Therefore, how to improve the convenience of the length adjustment operation of the telescopic watchband, realize the continuous adjustment of the length of the watchband, enhance the operation feeling and the feedback feeling of the user, and improve the use experience of the user is a technical problem faced by technical personnel in the field.

Disclosure of Invention

The invention aims to provide a telescopic watchband, which can improve the convenience of length adjustment operation, realize the continuous adjustment of the length of the watchband, enhance the operation feeling and feedback feeling of a user and improve the use experience of the user. Another object of the present invention is to provide a wearable device.

In order to solve the technical problem, the invention provides a telescopic watchband, which comprises an outer layer band body connected with one end of an equipment main body, an inner layer band body connected with the other end of the equipment main body, and a sliding support arranged in an inner cavity of the outer layer band body in a sliding manner, wherein the tail end of the inner layer band body is connected with the sliding support, a wave-shaped sliding rail with a wavy and undulated surface is arranged on the wall surface of the inner cavity of the outer layer band body along the length direction of the inner cavity, and an arch spring used for being tightly abutted to and mounted with all levels of wave trough surfaces of the wave-shaped sliding rail is arranged on the surface of the sliding.

Preferably, the adjusting device further comprises an adjusting rod which is slidably arranged on the outer-layer belt body in a penetrating mode and used for driving the sliding support to slide along the length direction of the sliding support.

Preferably, an extension belt body extending outwards for a preset length to be connected with the sliding support is embedded in the tail end of the inner layer belt body.

Preferably, the sliding support offer along length direction on the surface be used for holding extend the terminal mounting groove of the area body, the joint groove has been seted up to the end of mounting groove, just the end of the extension area body be provided with on the surface be used for with the installation boss of joint groove cooperation joint.

Preferably, groove walls are vertically arranged on two sides of the mounting groove in the width direction, and the adjusting rod is transversely arranged in each groove wall in a penetrating manner; the long sliding holes are formed in the side walls of the two sides of the outer-layer belt body along the length direction, and the rod body of the adjusting rod is slidably arranged in each long sliding hole in a penetrating mode.

Preferably, the bottom surface of the sliding support is provided with fastening grooves at two ends in the length direction, and two ends of the bow spring are fastened in the corresponding fastening grooves respectively.

Preferably, the two ends of the adjusting rod are hollow, a sliding rod can be inserted into the adjusting rod in an axially sliding manner, a limiting pin radially penetrates through a rod body of the sliding rod, and the two ends of the limiting pin are respectively abutted against the top wall and the bottom wall of the long sliding hole; the side walls of the two ends of the adjusting rod are provided with limiting slide holes which extend along the axial direction and are used for the limiting pins to slide along the axial direction so as to be abutted against the side walls of the two sides of the long slide hole.

Preferably, an extension rod inserted into the inner cavity of the adjusting rod is axially arranged on the end face of the inner end of the sliding rod, and a return spring is arranged between the tail end of the extension rod and the end face of the inner cavity of the adjusting rod, so that the side wall of the limiting pin is tightly abutted to the side wall of the outer side of the long sliding hole through elasticity in a natural state.

Preferably, an arc-shaped protruding part which protrudes outwards by a preset height and is used for tightly abutting against the side walls of the two sides of each stage of wave valley surface in the wave-shaped sliding rail is arranged at the middle part of the bow-shaped spring.

The invention further provides wearable equipment, which comprises an equipment body and the telescopic watchband detachably connected to the equipment body, wherein the telescopic watchband is specifically the telescopic watchband in any one of the above.

The invention provides a telescopic watchband which mainly comprises an outer layer band body, an inner layer band body, a sliding support, a wave-shaped sliding rail and an arch spring. Wherein, the outer area body links to each other with the one end of equipment main part, and the inlayer area body links to each other with the other end of equipment main part, and both can enclose the connection, supply the user to dress. The inner chamber has been seted up along length direction in the inside of the outer layer area body, installs slidable sliding bracket in the inner chamber, and the end of the inlayer area body inserts in the inner chamber of the outer layer area body simultaneously to connect on sliding bracket, along with sliding bracket's slip in the inner chamber drives the inlayer area body and carries out concertina movement in the outer layer area body, realize watchband length adjustment. Importantly, the inner cavity wall surface of the outer layer belt body is provided with a wave-shaped sliding rail, and the surface of the wave-shaped sliding rail is undulated and distributed in a stretching way along the length direction of the outer layer belt body. The bow spring is arranged on the surface of the sliding support, has elasticity, is overall bow-shaped, is mainly used for sliding in a matching way with the waveform sliding rail, can be tightly abutted against all levels of wave trough surfaces in the waveform sliding rail, and realizes interference mounting through elastic deformation. And in the sliding process of the sliding support, the bow spring can slide on the surface of the wave-shaped slide rail in the process of generating elastic deformation (compression), so that the bow spring slides from one wave valley surface of the wave-shaped slide rail to the other wave valley surface, and the sliding of the sliding support and the length expansion of the tail end of the inner-layer belt body in the inner cavity of the outer-layer belt body are realized. Therefore, when the length of the watchband is adjusted by the user through the sliding support, the bow spring always keeps the elastic force on the surface of the waveform sliding rail, so that the operation feeling and the feedback feeling of the user can be enhanced, and the use experience of the user is improved; meanwhile, the user can continuously stir the sliding support, the convenience of length adjustment operation is improved, and the length of the watchband can be continuously adjusted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an overall structural sectional view of an embodiment of the present invention.

Fig. 2 is another view of fig. 1.

Fig. 3 is an enlarged view of a portion of the structure of fig. 2.

Fig. 4 is another view of fig. 3.

Fig. 5 is a schematic view of an installation structure of the sliding bracket and the extension belt.

Fig. 6 is a schematic view of an installation structure of the extension belt body and the inner layer belt body.

Fig. 7 is a schematic view of the installation structure of the wave-shaped slide rail in the outer belt body.

Fig. 8 is a cross-sectional view of the mounting structure of the spacing pin in the elongated sliding hole.

Fig. 9 is a partial structural schematic diagram of fig. 8.

Fig. 10 is a schematic view of an installation structure of the outer layer belt body, the inner layer belt body and the apparatus main body.

Wherein, in fig. 1-10:

the device comprises a device main body-1, an outer layer belt body-2, an inner layer belt body-3, a sliding support-4, an adjusting rod-5, an arch spring-6, an extension belt body-7, a sliding rod-8, a limiting pin-9, an extension rod-10 and a reset spring-11;

the sliding rail comprises a wave-shaped sliding rail-201, a long sliding hole-202, a mounting groove-401, a groove wall-402, a catching groove-403, a limiting sliding hole-501, an arc-shaped protruding part-601 and a mounting boss-701.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4 and 9, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention, fig. 2 is a schematic view from another perspective of fig. 1, fig. 3 is an enlarged view of a portion of fig. 2, fig. 4 is a schematic view from another perspective of fig. 3, and fig. 9 is a schematic view of an installation structure of an outer layer belt body 2, an inner layer belt body 3 and an apparatus main body 1.

In one embodiment of the present invention, the retractable watchband mainly comprises an outer band body 2, an inner band body 3, a sliding support 4, a wave-shaped sliding rail 201 and a bow spring 6.

Wherein, the outer layer area body 2 links to each other with the one end of equipment main part 1, and the inner layer area body 3 links to each other with the other end of equipment main part 1, and both can enclose the connection, supply the user to dress.

The inner chamber has been seted up along length direction in the inside of the outer layer area body 2, installs slidable sliding support 4 in the inner chamber, and the end of the inner layer area body 3 inserts in the inner chamber of the outer layer area body 2 simultaneously to connect on sliding support 4, along with sliding support 4 slides in the inner chamber and drives the inner layer area body 3 and carry out concertina movement in the outer layer area body 2, realize watchband length adjustment.

What is important is that a wave-shaped sliding rail 201 is arranged on the inner cavity wall surface of the outer belt body 2, and the surface of the wave-shaped sliding rail 201 undulates in a wave shape and extends and distributes along the length direction of the outer belt body 2. Bow-shaped spring 6 sets up on sliding support 4's surface, has elasticity, wholly is bow-shaped, mainly used and wave form slide rail 201 cooperation slip, can closely butt with the trough face at all levels in the wave form slide rail 201, realizes interference fit through elastic deformation. In the sliding process of the sliding support 4, the bow spring 6 can slide on the surface of the wave-shaped sliding rail 201 in the process of generating elastic deformation (compression), so that the bow spring slides from one wave valley surface of the wave-shaped sliding rail 201 to the other wave valley surface, and the sliding of the sliding support 4 and the length expansion of the tail end of the inner-layer belt body 3 in the inner cavity of the outer-layer belt body 2 are realized.

Therefore, when the length of the watchband is adjusted by the user through the sliding support 4, the bow spring 6 always keeps the elastic force on the surface of the waveform sliding rail 201, so that the operation feeling and the feedback feeling of the user can be enhanced, and the use experience of the user is improved; meanwhile, the user can continuously stir the sliding support 4, so that the convenience of length adjustment operation is improved, and the continuous adjustment of the length of the watchband is realized.

In order to facilitate the user to operate the sliding support 4 to conveniently slide in the inner cavity of the outer belt body 2, the adjusting rod 5 is additionally arranged in the embodiment. Specifically, this regulation pole 5 wears to establish on outer area body 2 slidable to link to each other with its inside sliding support 4, can drive sliding support 4 and slide in step in the inner chamber of outer area body 2 at the slip in-process, in order to make things convenient for the user to carry out length adjustment operation through adjusting pole 5.

As shown in fig. 6, fig. 6 is a schematic view of an installation structure of the extension belt body 7 and the inner layer belt body 3.

In a preferred embodiment regarding the inner layer band body 3, in order to extend the overall length of the inner layer band body 3 as much as possible and to expand the length adjustment range of the band, an extension band body 7 is embedded in the end of the inner layer band body 3 in this embodiment. Specifically, the extension tape body 7 may be embedded inside along the length direction of the inner layer tape body 3 and extend outward by a predetermined length at the end surface of the end of the inner layer tape body 3. So set up, insert the back in the inner chamber port of outer layer area body 2 when the end of the body of the inlayer area 3, can link to each other through extending the sliding support 4 that takes body 7 and outer layer area body 2 inner chamber to the length that the body 7 was taken in to the utilization has increased the body of the inlayer area 3. Here, the extension band body 7 may be specifically a steel sheet or the like.

As shown in fig. 5, fig. 5 is a schematic view of an installation structure of the sliding bracket 4 and the extending belt body 7.

For conveniently extending the connection between area body 7 and the sliding support 4, mounting groove 401 has been seted up along its length direction on the (outside) surface of sliding support 4 to this embodiment, has seted up the joint groove in the extreme position department of mounting groove 401 simultaneously. Correspondingly, this embodiment is provided with installation boss 701 on the terminal surface of extension area body 7, and this installation boss 701 mainly is used for forming the joint with the joint groove cooperation in the installation groove 401. So set up, the end of the extension area body 7 can inwards stretch into along the inner chamber of the outer layer area body 2, and install in the mounting groove 401 on the sliding support 4, simultaneously through the installation boss 701 on the outer layer area body 2 and the joint cooperation between the joint groove in the mounting groove 401, can install the extension area body 7 on the sliding support 4 steadily, and then, when sliding support 4 slides in the inner chamber of the outer layer area body 2, can drive and extend the synchronous concertina movement of the area body 7 and the inlayer area body 3 in the outer layer area body 2.

For convenience of customers slides through adjusting pole 5 drive sliding bracket 4, the cell wall 402 has all been established immediately to both sides position department on the width direction (horizontal) of the mounting groove 401 on sliding bracket 4 to this embodiment, the outside preset height that extends in surface of this cell wall 402 perpendicular sliding bracket 4, the through-hole has all been seted up to the same position department on both sides cell wall 402 simultaneously, and the body of rod of adjusting pole 5 wears to establish in the through-hole on this both sides cell wall 402 promptly, realize adjusting being connected between pole 5 and the sliding bracket 4 through the shaft hole cooperation (like interference fit etc.) of adjusting pole 5 and this through-hole.

Moreover, for the convenience of the user to operate the adjusting rod 5, the long sliding holes 202 are provided on the side walls of the two sides of the outer layer belt body 2, and the rod body of the adjusting rod 5 is inserted into the long sliding holes 202 of the two sides, and the two ends of the adjusting rod 5 can slightly extend out of the long sliding holes 202. Specifically, the long slide holes 202 are distributed along the longitudinal direction of the side wall of the outer belt body 2, and the adjustment rods 5 are inserted therein, so that the adjustment rods 5 can slide along the longitudinal direction of the long slide holes 202. So set up, the user can hold between the fingers the both ends of adjusting pole 5 with thumb and forefinger respectively simultaneously, and the application of force promotes again and adjusts pole 5 and slide along length direction in long slide opening 202, and then drives sliding support 4 through adjusting being connected of pole 5 and cell wall 402 and slide in outer skin internal cavity.

In order to improve the installation stability of the bow spring 6 on the sliding support 4, in this embodiment, fastening grooves 403 are formed at both ends of the sliding support 4 in the length direction, and both ends of the bow spring 6 are bent to form bending portions, and are fastened in the corresponding fastening grooves 403 on the sliding support 4 through the bending portions. With this arrangement, the bow spring 6 can be stably mounted on the sliding bracket 4 by engaging the both ends of the bow spring 6 with the engaging grooves 403 at the both ends of the sliding bracket 4. In addition, one end of bow spring 6 may extend beyond slot 403 and be connected to the end of extension strap 7 on inner strap 3.

Further, in order to ensure that the bow spring 6 can be tightly abutted against the wave-shaped slide rail 201 during the sliding process of the sliding support 4 and slide along the surface of the wave-shaped slide rail 201, the present embodiment provides an arc-shaped protrusion 601 at the middle part of the bow spring 6. Specifically, the arc-shaped protrusion 601 may have an arc shape and protrude outward at a predetermined height at a middle portion of the bow spring 6, and a radius of curvature of the arc-shaped protrusion 601 is equal to a radius of curvature of each valley in the wave-shaped slide rail 201. So set up, when bow-shaped spring 6 slided along wave form slide rail 201 surface, in the crest region of wave form slide rail 201, arc bulge 601 and crest surface butt to produce great elastic deformation, along with the motion of sliding support 4 goes on, arc bulge 601 will hug closely the surface of crest and slide gradually to the trough. When the arc-shaped protrusion 601 slides into the wave valley region of the wave-shaped sliding rail 201, because the curvature radii of the arc-shaped protrusion 601 and the wave valley region are equivalent, the two side walls of the arc-shaped protrusion 601 can be tightly attached to the two side walls of the wave valley surface, and the wave valley surface is tightly pressed by using the elastic force, so that interference installation to a certain degree is realized, namely, when a user pulls the sliding support 4 to slide through the adjusting rod 5, part of the elastic force of the bow spring 6 needs to be overcome.

As shown in fig. 7, fig. 7 is a schematic view of an installation structure of the wave-shaped sliding rail 201 in the outer belt body 2.

Considering that the bow spring 6 has to have sufficient width and thickness to ensure sufficient elastic force, and to prevent the bow spring 6 from accidentally falling out of the wave-shaped sliding rail 201 during the sliding process, in the present embodiment, a plurality of (for example, 2) wave-shaped sliding rails 201 are simultaneously disposed on the inner cavity wall surface (generally, the bottom surface) of the outer layer belt body 2, and each wave-shaped sliding rail 201 may be uniformly distributed on the inner cavity wall surface along the width direction (transverse direction) of the outer layer belt body 2. So set up, bow-shaped spring 6 can cooperate with many wave form slide rails 201 simultaneously at the slip in-process.

As shown in fig. 8 and 9, fig. 8 is a cross-sectional view of an installation structure of the stopper pin 9 in the elongated slide hole 202, and fig. 9 is a partial structural view of fig. 8.

In a preferred embodiment of the adjusting rod 5, both ends of the adjusting rod 5 in the axial direction are hollow structures, and an inner cavity with a certain depth is formed. Sliding rods 8 are inserted into the inner cavities at the two axial ends of the adjusting rod 5, and the sliding rods 8 can slide in the inner cavities at the two ends of the adjusting rod 5 along the axial direction. Meanwhile, a limit pin 9 penetrates through the rod body of the sliding rod 8 along the radial direction, and when the sliding rod 8 slides, the limit pin 9 is driven to slide synchronously. Specifically, the whole of the limit pin 9 penetrates the sliding rod 8 along the radial direction (or the transverse direction), and two ends of the limit pin 9 extend out of two radial sides of the sliding rod 8 and abut against the top wall and the bottom wall of the long sliding hole 202 on the side wall of the outer-layer belt body 2 respectively (but do not interfere with the sliding of the limit pin 9).

Correspondingly, the side walls of the two ends of the adjusting rod 5 are also provided with limiting slide holes 501. Specifically, the limiting slide holes 501 are distributed along the axial direction of the adjusting hole and are mainly used for being matched with the limiting pin 9, when the sliding rod 8 drives the limiting pin 9 to slide in the inner cavity of the adjusting rod 5, because two ends of the limiting pin 9 extend out of the side wall of the adjusting rod 5, the limiting slide holes 501 can provide space for the sliding of the limiting pin 9. In the case of the long slide hole 202, the axial movement of the stopper pin 9 in the adjustment lever 5, i.e., the lateral (width) movement in the long slide hole 202, in the direction indicated by the arrow shown in the figure, may reach the outer limit position when moving outward to abut against the outer inner wall 202a of the long slide hole 202, or may reach the inner limit position when moving inward to abut against the inner wall 202b of the long slide hole 202, in the movement stroke thereof.

Furthermore, in this embodiment, an extension rod 10 is further added to the end surface of the inner end of the sliding rod 8, and the extension rod 10 extends toward the depth of the inner cavity of the adjustment rod 5, but does not extend to the end of the inner cavity. Meanwhile, a return spring 11 is arranged between the end face of the tail end of the extension rod 10 and the end face of the tail end of the inner cavity of the adjusting rod 5. The return spring 11 has an elastic force in the axial direction, and when the return spring 11 is in a natural state (the length of the watchband is not adjusted), the return spring 11 is compressed by the extension rod 10, and has an axially outward elastic force, and the elastic force drives the extension rod 10, the sliding rod 8 and the limit pin 9 to move axially outward until the side wall of the limit pin 9 abuts against the outer side inner wall of the long sliding hole 202, so that the static friction force between the side wall of the limit pin 9 and the side wall of the long sliding hole 202 is utilized to enhance the locking degree of the watchband at the current length position, wherein the main function of locking the inner-layer band body 3 at the current length position is the elastic force between the bow spring 6 and the wave-shaped slide rail 201.

So set up, when the user needs to adjust the length of watchband, can at first pinch the both ends of adjusting pole 5 respectively with thumb and forefinger, and inwards press the slide bar 8 in adjusting pole 5 both ends simultaneously, make slide bar 8 overcome the elasticity of reset spring 11 and inwards remove, drive the spacer pin 9 on the slide bar 8 and slide along the transverse direction in long slide opening 202 simultaneously, thereby make spacer pin 9 break away from the butt to long slide opening 202 outside inner wall 202a, afterwards, the user can be through thumb and finger application of force, promote adjusting pole 5 and slide in long slide opening 202, until after adjusting the watchband to target length, loose hand and remove the power, make spacer pin 9 butt on the outside inner wall 202a of long slide opening 202 under the elastic force of reset spring 11 again, with the elasticity butt between bow-shaped spring 6 and the wave form slide rail 201 with the watchband locking at current length jointly.

The embodiment further provides a wearable device, which mainly includes a device body 1 and a retractable watchband detachably connected to the device body 1, wherein specific contents of the retractable watchband are the same as those of the above related contents, and are not described again here. The wearable device that points to in this embodiment mainly is intelligent bracelet or intelligent wrist-watch.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a telescopic watchband, its characterized in that includes the outer area body (2) that links to each other with the one end of equipment main part (1), with the inlayer area body (3) that the other end of equipment main part (1) links to each other to and set up slidable in sliding support (4) in the inner chamber of the outer area body (2), the end of the inlayer area body (3) with sliding support (4) link to each other, be provided with waveform slide rail (201) that the surface is wavy undulation along its length direction on the inner chamber wall of the outer area body (2), just sliding support (4) be provided with on the surface be used for with bow-shaped spring (6) that the wave valley surfaces at different levels of waveform slide rail (201) tightly supported the installation.

2. The retractable watchband as claimed in claim 1, further comprising an adjusting lever (5) slidably disposed through the outer band (2) for driving the sliding support (4) to slide along the length direction thereof.

3. The telescopic watchband according to claim 2, characterized in that an extension strip (7) extending outward by a predetermined length to be connected to the sliding support (4) is embedded in the end of the inner strip (3).

4. The retractable watchband as claimed in claim 3, wherein the surface of the sliding support (4) is provided with a mounting groove (401) along the length direction for accommodating the end of the extension band (7), the end of the mounting groove (401) is provided with a clamping groove, and the surface of the end of the extension band (7) is provided with a mounting boss (701) for being clamped with the clamping groove in a matching manner.

5. The retractable watchband according to claim 4, wherein groove walls (402) are vertically arranged on both sides of the width direction of the installation groove (401), and the adjusting bar (5) is transversely arranged in each groove wall (402); the long sliding holes (202) are formed in the side walls of the two sides of the outer-layer belt body (2) along the length direction, and the rod body of the adjusting rod (5) penetrates through the long sliding holes (202) in a sliding mode.

6. The retractable watchband according to claim 5, wherein the bottom surface of the sliding support (4) is provided with a groove (403) at each of the two ends in the length direction, and the two ends of the bow spring (6) are fastened in the corresponding grooves (403).

7. The retractable watchband according to claim 6, wherein the two ends of the adjusting rod (5) are hollow, a sliding rod (8) is inserted into the adjusting rod in an axially slidable manner, a limiting pin (9) is radially inserted into a rod body of the sliding rod (8), and two ends of the limiting pin (9) abut against the top wall and the bottom wall of the long sliding hole (202), respectively; and the side walls of the two ends of the adjusting rod (5) are provided with limiting slide holes (501) which extend along the axial direction and are used for the limiting pins (9) to slide along the axial direction so as to be abutted against the side walls of the two sides of the long slide hole (202).

8. The retractable watchband according to claim 7, wherein an extension rod (10) inserted into the inner cavity of the adjusting rod (5) is axially arranged on the end surface of the inner end of the sliding rod (8), and a return spring (11) is arranged between the end of the extension rod (10) and the end surface of the inner cavity of the adjusting rod (5) to press the side wall of the limit pin (9) against the outer side wall of the long sliding hole (202) through elasticity in a natural state.

9. The band according to any one of claims 1 to 8, wherein the bow spring (6) has, at its central portion, an outwardly projecting arcuate projection (601) of a predetermined height for abutting against the side walls of the wave-shaped valley surfaces of the respective steps in the wave-shaped slide (201).

10. A wearable device comprising a device body (1) and a watchband of a retractable type detachably connected to the device body (1), characterized in that the watchband of a retractable type is in particular a watchband of a retractable type according to any one of claims 1-9.

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