CN113439914B

CN113439914B - Wrist strap and wrist-wearing device

Info

Publication number: CN113439914B
Application number: CN202110764653.7A
Authority: CN
Inventors: 张健宁; 邵青汝; 赵成; 冯华营; 薛瑶; 李亚薇; 张超; 仲颖
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2023-05-23
Anticipated expiration: 2041-07-06
Also published as: CN113439914A

Abstract

The invention discloses a wrist strap and a wrist-worn device, wherein the wrist strap comprises: the wrist-wearing device comprises a band body and a connecting part, wherein one end of the band body is connected with the connecting part, the connecting part is used for being connected with one end of a device main body of the wrist-wearing device, and the other end of the band body is a free end; and a memory metal part provided in the band body, the memory metal part having a memory state of being arc-shaped in a natural state, so that the band body is naturally maintained in an arc shape, and the wristband is naturally maintained in a wearing state. According to the technical scheme, the wrist wearing device can be worn or removed from the wrist conveniently and rapidly by a user, so that the use experience of the user is improved.

Description

Wrist strap and wrist-wearing device

Technical Field

The invention relates to the technical field of wrist-wearing equipment, in particular to a wrist strap and wrist-wearing equipment.

Background

With the development of electronic technology, wrist-worn devices are becoming more favored. Wrist-worn devices generally include a device body for displaying image information to a user, and a flexible wristband for wearing the device body on the wrist or ankle of the user. In the existing wrist-wearing device, since the flexible wrist strap has no supporting function and clamping function, a wrist strap buckle is usually required to be arranged on one wrist strap, and a plurality of adjusting holes are arranged on the other wrist strap, and the wrist strap buckle is matched with the adjusting holes so as to connect the two wrist straps, thereby enabling the wrist-wearing device to be stably worn on the wrist of a user. However, the wearing mode makes the user need to buckle or release the wrist belt buckle in the wearing and removing processes of the wrist-wearing device, so that the operation is inconvenient, and the use experience of the user is greatly affected.

Disclosure of Invention

The invention mainly aims to provide a wrist strap, which aims to enable a user to conveniently and rapidly wear or remove wrist-worn equipment on the wrist, so that the use experience of the user is improved.

To achieve the above object, the present invention provides a wristband comprising:

the wrist-wearing device comprises a band body and a connecting part, wherein one end of the band body is connected with the connecting part, the connecting part is used for being connected with one end of a device main body of the wrist-wearing device, and the other end of the band body is a free end; and

the memory metal part is arranged on the belt body part and has a memory state of being arc-shaped in a natural state, so that the belt body part is naturally maintained to be arc-shaped, and the wrist strap is naturally maintained to be in a wearing state.

Optionally, the material of the belt body comprises fabric and/or soft rubber and/or hard rubber.

Optionally, the connecting part is connected with the memory metal part by welding or bonding or screw locking;

or, the memory metal part is integrally formed with the connecting part in an insert injection molding mode.

Optionally, after the memory metal part and the connecting part are connected into a whole, the memory metal part and the belt body part are integrally formed in an insert injection molding mode.

Optionally, the memory metal part includes an elongated memory metal part, the memory metal part is bent into a U-shape or a U-like shape once and bent into an integral arc shape twice, and the memory metal parts are disposed close to each other at two ends of the opening of the U-shape or the U-like shape, and are connected to the connecting part through the two ends close to each other.

Optionally, the wrist strap is provided with two; a gap exists between the free ends of the two belt bodies; or the free ends of the two belt body parts are laminated; or the free ends of the two belt bodies are staggered and parallel; or the free ends of the two belt body parts are butted; or alternatively

The wrist strap is provided with one belt, and the free end of the belt body part of the wrist strap is close to the other end of the equipment body.

Optionally, when the free ends of the two belt body portions are stacked, at least one of the two opposite surfaces of the two stacked free ends is provided with a protrusion.

The invention also provides wrist-wearing equipment, which comprises an equipment main body and the wrist strap.

Optionally, an installation groove is formed in the end of the equipment main body, and a clamping hole is formed in the installation groove; the connecting part of the wrist strap is connected to the mounting groove in a pluggable manner, and the connecting part is provided with a clamping groove;

the wrist-wearing device further comprises a clamping block, after the connecting portion is inserted into the mounting groove, the clamping groove is opposite to the clamping hole, the clamping block penetrates through the clamping Kong Bingka to be combined with the clamping groove and is magnetically attracted with the connecting portion, and therefore the wrist strap is locked in the mounting groove.

Optionally, at least one of the connecting portion and the clamping block is a magnet, and at most one of the connecting portion and the clamping block is made of magnetic metal.

In the wrist strap, one end of the strap body is connected with the connecting part, the connecting part is used for being connected with one end of the equipment main body of the wrist wearing equipment, the other end of the strap body is a free end, and the memory metal part is provided with a memory state which is arc-shaped in a natural state, so that the strap body is naturally maintained in an arc shape, and the wrist strap is naturally maintained in a wearing state, therefore, on one hand, the wrist strap buckle and the related connecting structure thereof can be saved, and the material cost and the assembly cost are saved; on the other hand, when the wrist belt is worn, the user does not need to carry out counterpoint buckling of the wrist belt buckle, and the user can remove the wrist belt without unbuckling, so that the user can conveniently and rapidly wear or remove wrist wearing equipment on the wrist, and the use experience of the user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a first embodiment of the wrist-worn device of the present invention;

FIG. 2 is a schematic view of an exploded view of the wrist-worn device of FIG. 1;

FIG. 3 is a schematic view of a wrist-worn device according to a second embodiment of the invention;

FIG. 4 is a schematic structural view of a third embodiment of the wrist-worn device of the present invention;

FIG. 5 is a diagram showing various structures of a memory metal portion of a wrist band of the wrist-worn device of the present invention;

FIG. 6 is a schematic view of the structure between the memory metal portion of the wristband and the cap;

FIG. 7 is a schematic diagram of an embodiment of a wristband of the wrist-worn device of the present invention;

FIG. 8 is a schematic view of the configuration of the protrusions on the band body of the wristband of the wrist-worn device of the present invention;

FIG. 9 is a schematic structural view of a fourth embodiment of the wrist-worn device of the present invention;

FIG. 10 is a schematic view of an exploded view of the wrist-worn device of FIG. 9;

FIG. 11 is a schematic view of an exploded view of the wrist-worn device of FIG. 9 from another perspective;

FIG. 12 is a schematic view of another embodiment of a wristband of the wrist-worn device of the present invention;

FIG. 13 is a schematic view of an embodiment of a memory metal portion of the wristband;

FIG. 14 is a schematic view of the structure of a fifth embodiment of the wrist-worn device of the present invention;

FIG. 15 is a schematic view of an exploded construction of a portion of the components of the wrist-worn device of FIG. 14;

FIG. 16 is a schematic view of an embodiment of a wristband between a memory metal portion and a connecting portion.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present invention, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The present invention proposes a wrist-worn device, referring to fig. 1 and 4, the wrist-worn device generally includes a wrist strap 100 and a device body 200, one end of the wrist strap 100 is connected to one end of the device body 200, and the other end is a free end, and the device body 200 may be a watch body (for example, a normal watch dial, a smart watch dial, or a bracelet body, etc.), or may be a health monitoring module (generally a watch body without a screen display function, for example, a monitoring sensor for monitoring heart rate, blood pressure, etc. of a user may be provided, or a sensor for monitoring a movement state, a walking step number, etc. may be provided). In the present invention, the wristband 100 has an arc-shaped wearing state, and the wearing state thereof is naturally maintained, that is, the wristband 100 maintains the arc-shaped state even in the non-wearing state. Without loss of generality, in one embodiment of the present invention, the wristband 100 is generally provided with two, and the device body 200 is connected between the two wristbands 100; of course, in other embodiments, wristband 100 may be provided with only one and arranged in a major arc, as will be further described below.

It should be noted that, in the present invention, the curved wearing state of the wristband 100 means that the wristband 100 is only in one form in the natural state, that is, the wristband is only naturally maintained in the curved state, unlike the snap ring, the snap ring can have two forms in the natural state, one is in a straight form, the other is in an arc (ring) form, and the snap ring in the straight form can be converted into an arc (ring) form after the wrist is flapped, so as to realize wearing. Of course, it should be further noted that the wristband 100 is not limited to the ability of the wristband 100 to deform, at least, the free end of the wristband 100 may deform and expand outwards under the action of external force, so that the user can wear or remove the wrist-worn device from the wrist, and after the external force is removed, the deformation of the wristband 100 may recover and return to the curved wearing state.

Referring to fig. 1 and 2, in an embodiment of the present invention, the wristband 100 includes a band body 110 and a memory metal part 120 provided on the band body 110, wherein one end of the band body 110 is connected to one end of the device body 200, and the other end is a free end, and the memory metal part 120 has a memory state of being arc-shaped in a natural state, so that the band body 110 is naturally maintained in an arc shape, and the wristband 100 is naturally maintained in a wearing state, so that, on one hand, a wristband buckle and its related connection structure can be saved, thereby saving material costs and assembly costs; on the other hand, when the wrist belt is worn, the user does not need to carry out the alignment buckling of the wrist belt buckle, and the user can remove the wrist belt 100 without unbuckling, so that the user can conveniently and rapidly wear or remove wrist-worn equipment on the wrist, and the use experience of the user is improved.

It will be appreciated that the memory metal is superelastic in that it has a much greater ability to recover from deformation under external forces than conventional metals, i.e. large strains generated during loading (e.g. during donning/removal) are relieved with unloading and thus recover to the (arcuate) memory shape.

In an embodiment, one of the device main bodies 200 is provided with two wristbands 100, one end of the band body 110 of one of the wristbands 100 is connected to one end of the device main body 200, one end of the band body 110 of the other wristband 100 is connected to the other end of the device main body 200, and the two wristbands 100 together enclose a wearing space of the wrist-wearing device. Alternatively, referring to fig. 3, the free ends of the wristbands 100 are close to each other, but do not touch, i.e., there is a gap between the free ends of the bands 110, in which case the user breaks or struts the wristbands 100 apart so that the opening between the wristbands 100 allows the wrist to be accessed, and the wrist-worn device can be conveniently and quickly worn on or removed from the wrist. However, the present design is not limited thereto, and in other embodiments, in the wearing state, the free ends of the two belt body portions 110 are stacked (see fig. 1); in other embodiments, the free ends of the two belt bodies 110 may be offset and parallel; in other embodiments, the free ends of the two belt portions 110 may also abut.

Further alternatively, where two bracelets 100 are provided, the curvature of the band body 110 of each bracelet 100 is less than pi, i.e., the band body 110 of each bracelet 100 is disposed in a minor arc; it will be appreciated that the existence of the device body 200 does not require pi radians, and the two wristbands 100 can enclose a shape that stably encircles the wrist of the user, so that the wearing stability is ensured, and at the same time, the material of the wristbands 100 is saved, thereby reducing the material cost. However, the present design is not limited thereto, and in some embodiments, even when the bracelets 100 are provided in two, the curvature of the band body 110 of each bracelet 100 may be greater than or equal to pi, i.e., the band body 110 of each bracelet 100 may be disposed in a major arc.

In another embodiment, referring to fig. 4, the wrist strap 100 may be provided with only one, that is, one of the device bodies 200 is provided with the wrist strap 100, the free end of the strap body 110 is disposed near the other end of the device body 200, and the radian of the strap body 110 of the wrist strap 100 is greater than or equal to pi, that is, the strap body 110 of the wrist strap 100 is disposed in a major arc. In this case, the user breaks or spreads the free end of the wrist band 100 to form an opening between the wrist band and the device body 200 sufficient for the wrist to be moved in and out so that the wrist can be moved in and out of the wearing ring, thereby conveniently and rapidly wearing the wrist-worn device on or removing the wrist. It can be understood that if the radian of the band body 110 is too small, it is difficult to achieve stable wearing of the wrist-worn device of the single wrist band, and if the radian of the band body 110 is too large, the free end of the band body 100 is partially laminated inside the device main body 200, so that the user has discomfort during wearing, and the user experience is affected; in this embodiment, the radian range of the belt body 110 is optionally 1.3 pi to 1.8 pi, and the radian range is moderate, so that the wearing stability and wearing comfort can be both achieved.

Alternatively, referring to fig. 8, when the free ends of the two belt body portions 110 are stacked, at least one of the two opposite surfaces of the two stacked free ends is provided with protrusions 111, and the protrusions 111 may be in a flat spot shape or a thorn shape or a barb shape; typically, the protrusions 111 are provided in plurality to form a protrusion group; it will be appreciated that the addition of the protrusions 111 increases the friction between the opposite surfaces of the two free ends of the laminated strap, reduces the probability of displacement between the two free ends of the laminated strap along the length of the strap body 110, and thus improves the wearing stability of the wristband 100, and in particular, since the friction is increased when the two opposite surfaces are slidingly displaced, the connection force between the two free ends of the laminated strap in the direction perpendicular to the outer surface of the strap body 110 (the connection force is mainly increased by the conventional velcro tape), that is, when the two free ends of the two strap body 110 are pulled outwards (the force is approximately perpendicular to the outer surface of the strap body 110) to wear or remove the wristband 100, the protrusions 111 do not cause any obstruction, and thus do not cause additional labor to wear and remove the wristband 100.

Particularly for thorn-like or barb-like projections, it is preferred that the projections are soft rubber projections. During wearing, the user can severely shake the wrist, so that vertical extrusion force and horizontal relative displacement inertia are generated between two laminated ends of the wrist strap 100, the vertical extrusion force can enable the flexible adhesive bulge to be extruded in the vertical direction, and the horizontal relative displacement inertia can enable the flexible adhesive bulge to be stretched in the horizontal direction, so that the contact area between the flexible adhesive bulge and the wrist strap 100 on the opposite side and/or another group of flexible adhesive bulges arranged on the wrist strap 100 on the opposite side is increased, friction force between the two laminated ends of the wrist strap 100 is further increased, and the two laminated ends of the wrist strap 100 are prevented from being staggered, so that the wrist strap 100 is prevented from slipping from the wrist. Optionally, soft rubber protrusions are respectively disposed on two opposite surfaces of two end portions stacked together, and in the wrist wearing and shaking process, the wrist strap 100 is pressed by the extrusion force in the vertical direction and the relative displacement inertia in the horizontal direction to cause two groups of soft rubber protrusions to be extruded and deformed, so that the wrist strap 100 is more stable and firm to wear. Therefore, the wristband 100 of the present invention does not require buckle assistance nor concern about slipping.

In other embodiments of the present invention, software or hard plastic materials may be used for the flat protrusions.

Therefore, the memory metal part 120 of the present invention can realize stable support and wearing of the wrist-worn device at the wrist of the user without the need of the buckle to be fastened; the protrusions 111 at the ends of the band body 110 can prevent the dislocation of the two ends of the band body 110, thereby preventing the wrist band from slipping off the wrist due to the increased size of the wrist band, and further increasing the wearing stability; in addition, the memory metal part 120 and the protrusion 111 are arranged, so that the wrist strap buckling operation in the wearing process and the unbuckling operation in the removing process of the traditional wrist-wearing equipment are avoided, and the wearing and removing processes are easier.

In one embodiment, the belt body 110 is provided with a mounting cavity, and the memory metal part 120 is accommodated and mounted in the mounting cavity, that is, the memory metal part 120 is disposed in the belt body 110, so as to provide physical protection for the memory metal part 120 through the belt body 110.

Optionally, the memory metal part 120 comprises memory wires and/or memory metal sheets. To save material, the memory metal portion 120 is typically made of memory wire or memory metal strips. Referring to fig. 5 (d), 5 (e), 5 (f), in one embodiment, the memory metal part 120 includes a plurality of elongated memory metal pieces 120a (filament or narrow sheet) in parallel, the memory metal pieces 120a are in a strip shape extending along the length direction of the belt body 110, and at least two memory metal pieces 120a are respectively disposed near opposite sides of the belt body 110. In another embodiment, the memory metal part 120 includes an elongated memory metal part 120a (in the shape of a wire or a narrow sheet), and the memory metal part 120a is continuously bent in the parent phase plane to have a plurality of bending parts, and is bent in a ring shape with one side of the parent phase plane as the inner side. Referring to fig. 5 (g), in still another embodiment, the memory metal part 120 includes two elongated memory metal pieces 120a (filament or narrow sheet), each memory metal piece 120a has at least one bending portion in a parent phase plane, and is bent into a ring shape with one side of the parent phase plane as an inner side, and the bending portions of the two memory metal pieces 120a do not intersect. Referring to fig. 5 (h), in still another embodiment, the memory metal part 120 includes two elongated memory metal pieces 120a (filament or narrow sheet), each memory metal piece 120a is continuously bent in a parent phase plane to have a plurality of bent portions, and is bent in a ring shape with one side of the parent phase plane as an inner side, and the bent portions of the two memory metal pieces 120a intersect. Referring to fig. 5 (a), in still another embodiment, the memory metal part 120 includes an elongated memory metal part 120a, and the memory metal part 120a is bent once into a U-shape and secondarily into an overall arc shape. It should be noted that, in addition to the above-described structure of the memory metal part 120, the memory metal part 120 may have other structures, for example, but not limited to, those shown in fig. 5 (b) and 5 (c).

Optionally, referring to fig. 6, the mounting cavity extends through the free end of the band body 110, and the wristband 100 is further provided with a cap 140, the cap 140 being disposed over the free end of the band body 110. In this embodiment, the cap 140 is disposed to prevent the memory metal portion 120 from being exposed at the free end of the strap portion 110. Alternatively, the cap 140 may be made of soft rubber, hard rubber, metal, or the like. Further alternatively, the connection between the cap 140 and the band body 110 may be, but is not limited to, a heat press connection, an adhesive connection, or the like.

Optionally, when the memory metal part 120 is configured as a memory wire, the end of the memory wire is configured in a sphere or sphere-like shape, so as to reduce the sharpness of the end of the memory wire and reduce the probability of the end of the memory wire penetrating out of the belt body 110. It will be appreciated that the bulbous or spheroidal structure of the ends of the memory wire is thickened, i.e. the diameter of the bulbous or spheroidal structure is greater than the diameter of the memory wire.

Optionally, a positioning groove 140a is formed on the cap 140 for accommodating the spherical or spheroid end of the memory wire, so as to prevent the end of the memory wire from separating from the cap 140 and reduce the sliding of the memory wire in the relative mounting cavity. Further alternatively, referring to fig. 6, the cap 140 is in a clip shape and includes two clip parts 141 disposed opposite to each other, and a half of the positioning groove 140a is provided on a surface of each clip part 141 facing the other clip part 141.

Further, the material of the belt body 110 includes fabric and/or soft and/or hard glue. It should be noted that, in addition to the band body 110 being made of a single fabric or a single soft rubber or a single hard rubber (particularly, when the band body 110 is made of a single hard rubber, the band body 110 is in a long strip shape as a whole and has sufficient flexibility), the band body 110 may be made of two or more materials together. For example, referring to fig. 7, the belt body 110 may include a fabric body 110a in a belt shape, and a soft rubber covered edge 110b covering the edge of the fabric body 110a, wherein the fabric body 110a has better air permeability, the soft rubber covered edge 110b can provide better shaping effect, and can prevent the edge of the fabric body 110a from being off-line and reduce the dirt on the edge of the belt body 110 (compared with the fabric, the soft rubber is not easy to be dirty and is easy to scrub even if dirty); optionally, a soft adhesive film layer may be further disposed on the inner side of the fabric body 110a, so as to isolate sweat and the like through the soft adhesive film layer, and reduce the probability of the fabric body 110a being stained by sweat and the like; further alternatively, the ventilation holes are formed in the soft adhesive film layer, which is beneficial to ensuring good ventilation of the belt body 110.

In an embodiment, referring to fig. 2, the wristband 100 further includes a connection portion 130, where the connection portion 130 is disposed at one end of the strap body 110 for connection with the device body 200, and the connection portion 130 is fixedly connected to the memory metal portion 120. It is understood that the connection portion 130 may be provided with a structure for connecting with the apparatus main body 200 on the connection portion 130, which is beneficial to the stability of the connection structure between the wristband 100 and the apparatus main body 200.

Optionally, the material of the connecting portion 130 is a metal material or a hard plastic material, so as to ensure that the connecting portion 130 has a certain structural rigidity, and ensure the connection stability of the wristband 100 and the device main body 200. When the connecting portion 130 is made of metal, the connecting portion 130 may be connected to the memory metal portion 120 by welding or screw locking; when the material of the connecting portion 130 is a hard plastic material, the connecting portion 130 may be connected with the memory metal portion 120 by means of adhesion or screw locking, or the memory metal portion 120 is integrally formed with the connecting portion 130 by means of insert molding, so as to save the mounting process of the connecting portion 130 and the memory metal portion 120, and effectively improve the connection stability between the memory metal portion 120 and the connecting portion 130. In particular, when the connection portion 130 is connected to the memory metal portion 120 by means of screw locking, the specific arrangement manner may be: referring to fig. 16, the memory metal part 120 is configured as a memory metal wire, the connection part 130 is provided with a fixing hole 132 penetrating therethrough, the end of the memory metal wire is provided with a screw hole, and the connection screw 400 and the end of the memory metal wire are respectively inserted into the fixing hole 132 from both ends of the fixing hole 132 and are locked in the fixing hole 132.

In one embodiment, wristband 100 may be formed by: after the memory metal part 120 and the connecting part 130 are connected into a whole, the memory metal part and the belt body 110 (the belt body 110 is usually made of soft rubber) are integrally formed by an insert injection molding mode; thus, the injection molding mode is favorable for batch preparation of products, is favorable for improvement of production efficiency, and can ensure connection stability between the connected parts 130. Of course, in other embodiments, the wristband 100 may be formed by: the mounting cavity is formed in the band body 110, and the memory metal part 120 fixed to the connection part 130 is inserted into the mounting cavity, and the connection part 130 is connected and fixed to the band body 110.

In an embodiment, referring to fig. 9 to 11, the memory metal part 120 includes an elongated memory metal part 120a (which is generally configured as a memory metal wire but may be configured as a memory metal narrow sheet), the memory metal part 120a includes a first metal segment 121, a second metal segment 122 and a third metal segment 123 sequentially connected, wherein the first metal segment 121 and the third metal segment 123 are all extended along the length direction of the belt body 110 and are arranged in parallel, the second metal segment 122 is disposed at the free end of the belt body 110, and the second metal segment 122 is provided with a bending portion 122a; however, the present design is not limited thereto, and in other embodiments, referring to fig. 13, a plurality of bending portions 122a may be provided on the second metal segment 122. It can be understood that in the present embodiment, the memory metal piece 120a is substantially U-shaped (only the closed end thereof is provided with the bending portion 122 a), the open end thereof is fixedly connected with the connecting portion 130, and the closed end thereof is provided at the free end of the belt body 110. In this embodiment, the second metal section 122 of the memory metal portion 120 provided with the plurality of bending portions 122a is disposed at the free end of the belt body 110, and the structural strength of the bending portions 122a is high, so that the structural strength of the free end of the belt body 110 can be improved, and the structural stability of the product can be improved.

Alternatively, referring to fig. 12 and 13, an end of the first metal segment 121 far from the second metal segment 122 and an end of the third metal segment 123 far from the second metal segment 122 are both connected to the connection part 130 and disposed close to each other; in this way, the minimum distance between the free end of the first metal segment 121 and the periphery of the connecting portion 130 is advantageously increased, and the minimum distance between the free end of the third metal segment 123 and the periphery of the connecting portion 130 is advantageously increased, so that the connecting portion 130 (usually a hard plastic member) is advantageously wrapped around the free ends of the first metal segment 121 and the third metal segment 123, and structural strength is increased.

Alternatively, referring to fig. 9 to 11, the free end of at least one belt body 110 is provided with a mounting hole 114 inside the bent portion 122 a. It will be appreciated that the mounting hole 114 is located inside the bent portion 122a, so as to avoid that the second metal segment 122 is broken due to the mounting hole 114. In addition, the addition of mounting holes 114 can provide mounting locations for other accessories of wristband 100. For example, but not limited to, when the wristband 100 is provided with two bands, and the free ends of the two bands 110 are stacked, at least one of the mounting holes 114 of the band 110 is provided with a protrusion 112, and the other band 110 is provided with a recess 113 corresponding to the protrusion 112, and the protrusion 112 is at least partially embedded in the recess 113. It will be appreciated that the protruding member 112 extends partially into the mounting hole 114 to be fixedly connected to the mounting hole 114, and the other portion protrudes from the outer surface of the belt body 110 to be at least partially embedded in the concave hole 113 of the other belt body 110, so as to limit the relative displacement between the two belt bodies 110; in this embodiment, generally, the protrusion 112 and the concave hole 113 are in clearance fit, and there is no tight fit or buckling, that is, when an external breaking force perpendicular to the outer surface of the strap body 110 is applied, the two bracelets 100 can be easily opened, and the wrist-wearing device can still be removed conveniently, while the fit between the protrusion 112 and the concave hole 113 mainly increases the friction between the opposite surfaces of the two stacked free ends, and reduces the probability of displacement along the length direction of the strap body 110 between the two stacked free ends, so as to improve the wearing stability of the bracelets 100. Alternatively, the recess 113 is provided as a blind hole; however, the present design is not limited thereto, and in other embodiments, the concave hole 113 may be a through hole. Further alternatively, the concave holes 113 are provided on the belt body 110 at intervals along the extending direction of the belt body 110, so that the stacking lengths of the two free ends are different, and the cooperation between the protruding member 112 and the concave holes 113 can still exist, so that users with different wrist sizes can enjoy the wearing stability brought by the cooperation between the protruding member 112 and the concave holes 113.

However, the present design is not limited thereto, and in other embodiments, when the wristband 100 has a decorative spike, the decorative spike may be installed in the mounting hole 114 in a penetrating manner, and typically, opposite ends of the decorative spike are flush with opposite surfaces of the strap body 110. In particular, when the decorative nail is mounted in the mounting hole 114, the solution of providing the protrusion 111 as described above, that is, providing the protrusion 111 (especially, the soft rubber protrusion) on at least one of the two opposite surfaces of the two free ends stacked on each other, can be adopted to limit the relative displacement between the two belt body portions 110.

It should be noted that, in general, for the two solutions for limiting the relative displacement between the two belt body portions 110 (the solution in which the protrusion 112 is engaged with the concave hole 113 and the solution in which the protrusion 111 is provided), there is usually an alternative solution, that is, only the engagement between the protrusion 112 and the concave hole 113 may be provided, or only the protrusion 111 (especially, a soft rubber protrusion) may be provided.

Alternatively, referring to fig. 12, the band body 110 includes a body section 110c and a free section 110d connected, and the free section 110d forms a free end of the band body 110, that is, the mounting hole 114 is provided in the free section 110d, and for the memory metal part 120, at least the second metal section 122 protrudes from the body section 110c and is connected to the free section 110 d. The free section 110d is made of a hard plastic material or other hard materials, and it can be understood that the hard materials are not easy to deform, which is favorable for stable combination between the protruding member 112 and the mounting hole 114, and reduces the probability that the protruding member 112 is separated from the belt body 110; in addition, in some other embodiments, the protruding member 112 may be made of hard plastic or other hard materials, and integrally formed with the free end. Optionally, the free section 110d and the body section 110c are integrally formed by injection molding, so that the injection molding is beneficial to batch manufacturing and the production efficiency of the product can be improved; however, in other embodiments, the free section 110d may be further connected to the second metal section 122 in a snap-fit manner, and it should be noted that, at this time, the bent portion 122a of the second metal section 122 corresponding to the mounting hole 114 is bent toward the direction approaching the body section 110c, so that the protruding member 112 at the mounting hole 114 can be snapped into the bent portion 122 a.

In an embodiment, referring to fig. 14 to 16, an end of the apparatus body 200 is provided with a mounting groove 201, the mounting groove 201 being provided with a clamping hole 202; the connecting part 130 is connected to the mounting groove 201 in a pluggable manner, and the connecting part 130 is provided with a clamping groove 131; the wrist-wearing device further comprises a clamping block 300, after the connecting part 130 is inserted into the mounting groove 201, the clamping groove 131 is opposite to the clamping hole 202, and the clamping block 300 is arranged in the clamping hole 202 in a penetrating manner and clamped in the clamping groove 131, and magnetically attracts the connecting part 130 so as to lock the wrist strap 100 in the mounting groove 201. In this embodiment, when the wristband 100 is mounted, after the connection portion 130 is inserted into the mounting groove 201, the wristband 100 is indirectly connected to the device main body 200 through the connection portion 130, when the connection portion 130 is inserted into place, the clamping groove 131 on the connection portion 130 is opposite to the clamping hole 202 of the device main body 200, and then the clamping block 300 is put into the clamping hole 202, so that the clamping block 300 can be clamped in the clamping groove 131 and magnetically attracted to the connection portion 130, and the wristband 100 can be locked, so that the wristband 100 is firmly connected to the device main body 200; in contrast to the above-described procedure, when the wristband 100 is detached, specifically, the clip 300 is removed from the clip hole 202, so that the wristband 100 is unlocked, and the connection portion 130 is pulled out of the mounting groove 201, so that the wristband 100 is separated from the apparatus main body 200, thereby completing the detachment of the wristband 100.

However, the present design is not limited thereto, and in other embodiments, the connection portion 130 and the device main body 200 may be connected by a living ear; specifically, one end of the device main body 200 is provided with a connection notch corresponding to the connection part 130, two sides of the connection notch are respectively provided with a fixing groove, when the device is assembled, the raw ear is required to penetrate into the connection part 130, and the raw ear nails at the two ends of the raw ear are completely inserted into the two fixing grooves by aligning the two ends of the raw ear with the two fixing grooves and poking the raw ear poking rod; the disassembly mode is similar, the ear-producing deflector rod is also required to be stirred, and the watchband is taken down integrally after the ear-producing nail on one side firstly withdraws from a fixing groove.

Optionally, referring to fig. 15, in the technical solution of connecting and fixing by using the fixture block 300, a yielding gap 203 is formed on the side of the fixture hole 202, so as to facilitate the taking of the fixture block 300. Of course, in other embodiments, the latch 300 may have a portion exposed outside the latch hole 202, which is also convenient for taking the latch 300.

Optionally, at least one of the connecting portion 130 and the clamping block 300 is a magnet, and at most one of the connecting portion and the clamping block is made of magnetic metal. That is, in the present embodiment, the fixture block 300 may be a magnet, and the connecting portion 130 may be made of a magnetic metal material; the connecting portion 130 may be a magnet, and the clamping block 300 may be made of a magnetic metal material; the clamping block 300 and the connecting portion 130 may be both magnets, and at this time, when the magnetic poles of the clamping hole 202 and the connecting portion 130 are provided, it should be ensured that the clamping block 300 can be clamped in the clamping groove 131 and magnetically attracted to the connecting portion 130, that is, the magnetic pole of the part of the clamping block 300 for contacting with the clamping groove 131 should be opposite to the magnetic pole of the clamping groove 131 of the connecting portion 130. The above three arrangements can make the clamping block 300 magnetically attract the connecting portion 130, so that the clamping block 300 is stably clamped in the clamping groove 131, thereby ensuring that the wristband 100 can be locked.

Further, in the present embodiment, the clamping block 300 is a magnet, and the connecting portion 130 includes a magnetic metal sheet or a magnetic sheet disposed in the clamping groove 131. Thus, when the clamping block 300 is clamped in the clamping groove 131, the clamping block 300 is magnetically attracted with the magnetic metal sheet or the magnetic sheet, so as to limit the connecting portion 130, and lock the wristband 100. In particular, in order to ensure that the magnet and the magnetic sheet are magnetically attracted, it is necessary to comprehensively consider the magnetic pole of the magnetic sheet, the position where the magnetic sheet is disposed in the clamping groove 131, the mounting angle of the magnetic sheet, the magnetic pole of the clamping block 300, and the like, so as to ensure that the magnetic pole of the part of the clamping block 300 for contacting the magnetic sheet should be opposite to the magnetic pole of the magnetic sheet of the connection part 130. Of course, in other embodiments, the clamping block 300 may be a magnetic metal block, and the connecting portion 130 may include a magnetic sheet disposed in the clamping groove 131.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A wristband, comprising:

a memory metal part provided in the band body, the memory metal part having a memory state of being only arc-shaped in a natural state, so that the band body is naturally maintained in an arc shape, and the wristband is naturally maintained in a wearing state; the memory metal piece comprises a first metal section, a second metal section and a third metal section which are sequentially connected, wherein the first metal section and the third metal section extend along the length direction of the belt body and are arranged in parallel, the second metal section is arranged at the free end of the belt body, and the second metal section is provided with a bending part; the connecting part is made of rigid materials, and the memory metal part is fixedly connected to the connecting part;

the wrist strap is provided with two, two the free ends of the strap body are stacked, at least one of two opposite surfaces of the two stacked free ends is provided with a soft rubber bulge, the soft rubber bulge is in a thorn shape or a barb shape, and a plurality of soft rubber bulges are arranged to form bulge groups, and the bulge groups are used for increasing friction force between the two opposite surfaces of the two stacked free ends.

2. A wristband as claimed in claim 1, wherein the material of the strap body comprises fabric and/or soft and/or hard glue.

3. The wristband of claim 1 wherein the attachment portion is attached to the memory metal portion by welding or adhesive or screw locking;

4. The wristband of claim 1 wherein the memory metal portion is integrally formed with the strap body by insert molding after being integrally connected to the connecting portion.

5. A wristband as claimed in claim 1, wherein the memory metal part comprises an elongated memory metal element which is bent once into a U-shape or U-like shape and is bent twice into an integral arc shape, and wherein the memory metal elements are disposed adjacent to each other at both ends of the U-shape or U-like shape opening and are connected to the connecting part through the adjacent ends.

6. A wrist-worn device comprising a device body and the wrist strap of any one of claims 1 to 5.

7. The wrist-worn device according to claim 6, wherein an end portion of the device body is provided with a mounting groove provided with a clip hole; the connecting part of the wrist strap is connected to the mounting groove in a pluggable manner, and the connecting part is provided with a clamping groove;

8. The wrist-worn device of claim 7, wherein at least one of the connection portion and the clip is a magnet, and at most one of the connection portion and the clip is a magnetic metal.