wrist-worn devices

Abstract

The present invention discloses a wrist-worn device, which includes a device body and a wristband. The device body is provided with a first connecting portion, the first connecting portion is provided with a connecting groove, the connecting groove has two opposite side walls, and each side wall of the connecting groove is provided with at least two connecting holes; the wristband is provided with a second connecting portion, the second connecting portion is a metal component, the second connecting portion is provided with a connecting end corresponding to each connecting hole, the second connecting portion extends into the connecting groove, and each connecting end extends into a corresponding connecting hole to connect the wristband to the device body. The technical solution of the present invention is to respectively provide at least two connecting holes on the opposite side walls of the connecting groove, and provide connecting ends corresponding to the connecting holes on the wristband, so that each connecting end extends into a corresponding connecting hole, so as to reduce the force on a single connecting end and thus avoid breakage. There is no other contact between the device body and the wristband, which reduces damage to the device body shell and the wristband, and the processing and assembly are simple and the cost is low.

Description

Technical Field

[0001] The present invention relates to the technical field of smart wearable devices, and in particular to a wrist-worn device. Background Art

[0002] The smart wearable industry is experiencing rapid growth, with wrist-worn devices such as smartwatches and smart bracelets, in particular, gaining widespread market acclaim due to their diverse functionality. These wrist-worn devices typically consist of a device body for displaying information and enabling press or touch interactions, and a wristband connected to the body to secure the device to the user's wrist.

[0003] With the increasing use of wristbands made of various metal materials in wearable devices, metal wristband structures are becoming increasingly diverse. When a wrist-worn device is dropped or collides with an object, the connection between the wristband and the device body can break easily. Currently, the wristband and device body are often connected via a spring tab, with a support on the device body that abuts the end of the wristband to reduce the force acting on the tab and prevent breakage.

[0004] However, the above structural design does not effectively solve the problem of easy breakage at the connection between the wristband and the device body. It is also complicated to process, requires high assembly precision, and has low product reliability, while increasing product costs and production risks. Summary of the Invention

[0005] The main purpose of the present invention is to provide a wrist-worn device, aiming to solve the problems of easy breakage at the connection between the wristband and the device body, low product reliability, and high product cost and production risk.

[0006] To achieve the above objectives, the wrist-worn device proposed by the present invention includes:

[0007] An equipment body, the equipment body being provided with a first connecting portion, the first connecting portion being provided with a connecting groove, the connecting groove having two opposite side walls, each of the side walls of the connecting groove being provided with at least two connecting holes; and

[0008] The wristband is provided with a second connecting part, which is a metal part. The second connecting part is provided with a connecting end corresponding to each connecting hole. The second connecting part extends into the connecting groove, and each connecting end extends into a corresponding connecting hole to connect the wristband to the device body.

[0009] In one embodiment, at least two of the connection holes are spaced apart along the thickness direction of the device body.

[0010] In one embodiment, each side wall of the connecting groove is provided with at least three connecting holes, and center points of at least three connecting holes are not on the same straight line.

[0011] In one embodiment, the side wall of the connecting groove is provided with a guide groove, and the bottom wall of the guide groove is provided with the connecting hole;

[0012] A guide section is provided on the side of the guide groove, and the guide section passes through the side wall of the guide groove and is smoothly connected to the bottom wall of the guide groove.

[0013] In one embodiment, the second connecting portion includes:

[0014] Metal head pellets; and

[0015] At least two first spring ears are provided in the metal head particle, and the portion of the first spring ear exposed on the side of the metal head particle is the connecting end, and the connecting end is retractably provided relative to the metal head particle.

[0016] In one embodiment, the metal head particle is provided with a mounting cavity, and at least two mounting holes are respectively provided on opposite side walls of the mounting cavity. The second connecting portion is provided with a first spring tab corresponding to each of the mounting holes, and each of the first spring tabs is movably disposed in one of the mounting holes.

[0017] A control member is provided in the mounting cavity, and an end of the first spring ear away from the connection end is connected to the control member. The control member can drive the first spring ear to move in the mounting hole.

[0018] In one embodiment, the control element comprises:

[0019] a control body, the control body being movably disposed in the installation cavity; and

[0020] a first spring, wherein the first spring is sleeved on the first spring ear, and two ends of the first spring are respectively connected to the metal head particle and the first spring ear;

[0021] Guide surfaces facing the mounting hole are provided on both sides of the portion of the control body located in the mounting cavity. When the control body moves, the first spring causes the end of the first ear away from the connection end to slide and abut against the guide surfaces, so that the first ear extends or retracts into the mounting cavity.

[0022] In one embodiment, the metal head particle is provided with an avoidance opening connected to the installation cavity, and the control body includes a pressing portion and a guide portion connected thereto, the pressing portion is provided at the avoidance opening, the guide portion is provided in the installation cavity and is provided with the guide surface, and the pressing portion is pressed to move the guide portion away from the avoidance opening so that the first ear extending out of the installation cavity is retracted.

[0023] In one embodiment, the control member further includes a second spring, and two ends of the second spring are respectively connected to the bottom wall of the installation cavity and the control body;

[0024] And / or, a limiting platform is provided between the pressing portion and the guiding portion, and the limiting platform is used to abut against the inner wall surface of the avoidance opening;

[0025] And / or, the guide surface is an arc-shaped surface;

[0026] And / or, the distance between the two guide surfaces gradually decreases from the side of the guide portion away from the escape opening to the side close to the escape opening.

[0027] In one embodiment, the metal head particle includes:

[0028] A head particle body, wherein the head particle body is provided with a mounting groove, and at least two mounting holes are respectively provided on two opposite side walls of the mounting groove; and

[0029] A cover plate covers the notch of the installation slot to form the installation cavity, and the cover plate is provided with the avoidance opening.

[0030] The technical solution of the present invention is to respectively set at least two connecting holes on the opposite side walls of the connecting groove of the device body, and set connecting ends corresponding to the connecting holes on the wristband, so that each connecting end extends into a corresponding connecting hole, so that at least two connecting ends on the same side can simultaneously disperse and bear the shear force during falling, reduce the force on a single connecting end, and thus avoid breakage. At the same time, since the device body and the wristband in this application are only connected through the connecting ends and the connecting holes, there is no need to set up a support position on the device body to abut against the wristband, and there is no other contact between the device body and the wristband, which reduces the interaction between the two and reduces damage to the device body and the wristband. Compared with the additional design and production and assembly of the device body and wristband with a support position, the processing and assembly method of the connecting hole and the connecting end is relatively mature, does not require additional design, and is simple to process and assemble at a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0032] Figure 1 This is a schematic structural diagram of an embodiment of a wrist-worn device of the present invention;

[0033] Figure 2 for Figure 1 An exploded diagram of part of the wrist-worn device structure;

[0034] Figure 3 for Figure 2 A magnified schematic diagram of point A in the middle;

[0035] Figure 4 for Figure 1 An exploded diagram of a portion of the structure of another embodiment of a wrist-worn device;

[0036] Figure 5 for Figure 4 A magnified schematic diagram of point B in the middle;

[0037] Figure 6 This is a schematic diagram of the exploded structure of an embodiment of the second connecting portion of the present invention;

[0038] Figure 7 This is a structural diagram of an embodiment of a control body of the present invention;

[0039] Figure 8 for Figure 7 Schematic diagram of the cross-sectional structure of the control body from another perspective.

[0040] Description of Figure Numbers:

[0041]

[0042]

[0043] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0047] At present, common anti-fracture structures for the connection between the wristband and the device body include a support in the middle of the head piece on the device body, supports on both sides of the head piece, and reinforced supports at other positions of the head piece, etc., so as to share the shear force borne by the connection between each support and the head piece when the wrist-worn device falls.

[0048] However, practice has shown that this structure not only fails to effectively prevent fractures at the connection, but also easily damages the device housing and wristband due to contact between the support and the head body, resulting in low product reliability. Furthermore, this structure complicates the manufacturing of the wrist-worn device housing, requiring a precise dimensional fit between the device body and the wristband, which in turn requires higher machining and assembly precision, naturally increasing the product's production cost.

[0049] In view of this, in order to achieve the purpose of solving the problems of easy breakage of the connection between the wristband and the device body, low product reliability, high product cost and production risk, the present invention proposes a wrist-worn device 100.

[0050] Reference Figures 1 to 8 In some embodiments of the present application, the wrist-worn device 100 includes a device body 10 and a wristband 30. The device body 10 is provided with a first connecting portion, and the first connecting portion is provided with a connecting groove 11. The connecting groove 11 has two opposite side walls, and each side wall of the connecting groove 11 is provided with at least two connecting holes 11c; the wristband 30 is provided with a second connecting portion, and the second connecting portion is a metal component. The second connecting portion is provided with a connecting end 371 corresponding to each connecting hole 11c, and the second connecting portion extends into the connecting groove 11, and each connecting end 371 extends into a connecting hole 11c correspondingly to connect the wristband 30 to the device body 10.

[0051] In one embodiment, referring to Figure 1The device body 10 is used for information display and interactive operations, such as displaying clock information, interacting through the control body 33 or the touch screen, etc.; the wristband 30 is used to realize that the device body 10 is worn and fixed on the human wrist; taking the wrist-worn device 100 as a smart watch as an example, the device body 10 can be a dial and the wristband 30 can be a watch strap; taking the wrist-worn device 100 as a bracelet as an example, the device body 10 can be an interactive main body part that integrates display and other functions, and the wristband 30 is a ring belt connected to the main body part.

[0052] In this embodiment, the device body 10 has two ends, and each end of the device body 10 is provided with a first connecting portion. The first connecting portion can be an integrally formed structure with the outer shell of the device body 10. The material of the first connecting portion can be the same as or different from the material of the outer shell of the device body 10. For example, the outer shell of the device body 10 can be made of plastic, and the material of the first connecting portion is metal. For another example, the material of the device body 10 and the material of the first connecting portion are both metal.

[0053] The wristband 30 can be a one-piece belt-like structure or a chain-like structure formed by hinged multiple parts. In this case, the two ends of the wristband 30 are respectively connected to the two ends of the device body 10. The wristband 30 is put on the user's wrist to wear the wrist-worn device 100. The wristband 30 has a second connecting portion. The second connecting portion can be made of the same material as the wristband 30, for example, the wristband 30 is metal; or the second connecting portion and the wristband 30 can be made of different materials, for example, the wristband 30 is made of silicone or cotton and linen fabric, and the second connecting portion is made of metal.

[0054] Among them, the second connecting part is made of metal, which has good strength and durability. Because of this, the density of metal material is relatively high and the mass per unit volume is relatively high. When the wrist-worn device 100 falls to the ground, the connection between the device body 10 and the wristband 30 will be subjected to a large force.

[0055] Reference Figure 2 and Figure 3 In one embodiment, the first connecting portion includes two opposing connecting ears extending from one side of the housing of the device body 10. The two connecting ears and the housing together form a connecting groove 11. The connecting groove 11 is generally U-shaped, and the surfaces facing the two connecting ears serve as the side walls of the connecting groove 11. The side walls are recessed to form at least two blind holes, which serve as the connecting holes 11c.

[0056] In this embodiment, at least two connection ends 371 are respectively provided on both sides of the second connection portion, and the connection ends 371 protrude from the side surfaces of the second connection portion so that when the second connection portion is located in the connection groove 11, the connection ends 371 can extend into the connection holes 11c one by one.

[0057] As can be understood, when the wrist-worn device 100 falls to the ground, it is subjected to the reaction force of the ground, and the connecting end 371 interacts with the wall of the connecting hole 11c. The technical solution of this embodiment is to provide at least two connecting holes 11c on the opposite side walls of the connecting slot 11 of the device body 10, and to provide connecting ends 371 on the wristband 30 corresponding to the connecting holes 11c. Each connecting end 371 extends into a corresponding connecting hole 11c, so that at least two connecting ends 371 on the same side simultaneously distribute and bear the shear force during the fall, reducing the force on a single connecting end 371 and thus preventing breakage. At the same time, because the device body 10 and the wristband 30 in this application are connected only through the connecting end 371 and the connecting hole 11c, there is no need to provide a separate support on the device body 10 to abut the wristband 30. There is no other contact between the device body 10 and the wristband 30, which reduces the interaction between the two and reduces damage to the device body 10 housing and the wristband 30. Compared with the additional design, production and assembly of the device body and wristband with a bracket, the processing and assembly method of the connection hole 371 and the connection end 11c is more mature, does not require additional design, and is simple to process and assemble with low cost.

[0058] Furthermore, to ensure uniform force distribution in all directions on the connecting end 371 and avoid stress concentration, in one embodiment, the connecting end 371 is generally cylindrical, the connecting hole 11c is a circular hole, and the connecting end 371 is pluggably engaged with the connecting hole 11c. In another embodiment, the connecting end 371 is generally block-shaped, with a male snap-fit structure, and the connecting hole 11c is generally square, with a female snap-fit structure. The connecting end 371 is snap-fitted with the connecting hole 11c, and the second connecting portion is snapped into the connecting groove 11.

[0059] Optionally, refer to Figure 3 In one embodiment, at least two connection holes 11c are arranged at intervals along the thickness direction of the device body 10. In this embodiment, the line connecting the centers of the at least two connection holes 11c is on a straight line, and the extension direction of the straight line is the same as or angled with the thickness direction of the device body 10. In this way, on the one hand, the first connection part is not too long, and it is easy to disconnect from the shell of the device body 10 when it falls, making the structure of the first connection part and the second connection part more compact; on the other hand, when the dial of the device body 10 is placed horizontally, the distance between the two connection ends 371 in the horizontal direction is small, and the shear force it receives when the wrist-worn device 100 falls is more concentrated in the horizontal direction, reducing the structural impact on the first connection part and the second connection part.

[0060] It is understandable that the spacing between two adjacent connection holes 11c should not be too large and should be sufficient to achieve the above-mentioned beneficial effects. For example, at least two connection holes 11c are arranged side by side, the connection holes 11c are circular holes with a radius of r, and the distance between two adjacent connection holes 11c is h, satisfying the condition r<h<4r.

[0061] In other embodiments, each sidewall of the connection slot 11 is provided with at least three connection holes 11c, and the centers of the at least three connection holes 11c are not collinear. For example, in the case where the sidewall of the connection slot 11 is provided with three connection holes 11c, the three connection holes 11c are sequentially connected to form a right triangle, an acute triangle, an obtuse triangle, or the like.

[0062] Similarly, the four connection holes 11 c can be connected to form a quadrilateral or a triangle. There are many different ways to combine the multiple connection holes 11 c, which will not be listed here one by one.

[0063] In this way, the cross-sectional area of the connecting end 371 for shear resistance is increased in at least two dimensions at the same time, thereby further comprehensively improving the shear resistance of the connecting end 371 and preventing the connecting end 371 from breaking.

[0064] In one embodiment, a guide groove 11a is provided on the side wall of the connecting groove 11, and a connecting hole 11c is provided on the bottom wall of the guide groove 11a; a guide section 11b is provided on the side of the guide groove 11a, and the guide section 11b passes through the side wall of the guide groove 11a and is smoothly connected to the bottom wall of the guide groove 11a.

[0065] In this embodiment, the side walls of the connecting groove 11 are sunken to form a guide groove 11a, and the guide section 11b is arranged on one side of the opening of the guide groove 11a. The guide section 11b is a groove structure with an inclined or arc-shaped bottom wall. The bottom wall of the guide section 11b is smoothly connected to the bottom wall of the guide groove 11a. The guide sections 11b on the two side walls of the connecting groove 11 are arranged in a trumpet shape, so that the connecting end 371 can smoothly enter the connecting hole 11c along the guide section 11b.

[0066] Optionally, the side walls of the connecting groove 11 or the connecting ears forming the connecting groove 11 have a certain degree of elasticity. When the connecting end 371 abuts the inner wall of the guide section 11b and moves along the guide section 11b, the two side walls of the connecting groove 11 open slightly; when the connecting end 371 enters the connecting hole 11c, the two side walls elastically reset, making it difficult for the connecting end 371 to fall out of the connecting hole 11c.

[0067] Reference Figure 4 and Figure 5 In one embodiment of the present application, the second connecting portion includes a metal head bead 31 with at least two block-shaped protrusions protruding from each end of the metal head bead 31. These block-shaped protrusions serve as connecting ends 371, and the connecting hole 11c is shaped to accommodate the connecting ends 371. Due to the elasticity of the connecting ears, the connecting ends 371 can be aligned and connected to the connecting hole 11c. The connecting ends 371 on either side of the metal head bead are respectively inserted into the connecting holes 11c on the two side walls of the connecting groove 11.

[0068] Specifically, to facilitate assembly, an inclined guide surface is formed at one end of the connecting end 371 away from the metal head particle 31 body, so that the connecting end 371 will not be stuck during the assembly process, and it plays a certain guiding role in the snap-fitting between the connecting end 371 and the connecting hole 11c, so that the connecting end 371 can enter the connecting hole 11c more smoothly; correspondingly, the bottom wall of the connecting hole 11c is also provided with a guiding surface to fit tightly with the connecting end 371 and fit perfectly.

[0069] Furthermore, refer to Figure 5 In one embodiment, the connection end 371 is roughly rectangular, the connection hole 11c is roughly a rectangular groove, and the extension direction of the diagonal of the rectangular groove is roughly the same as the thickness direction of the device body 10, so that the connection end 371 has sufficient effective thickness to resist the shear force along the thickness direction of the device body 10, further improving the shear resistance of the wristband 30.

[0070] Reference Figure 2 and Figure 3 In another embodiment, the second connecting portion includes a metal head grain 31 and at least two first ears 37. The at least two first ears 37 are inserted into the metal head grain 31. The portion of the first ears 37 exposed on the side of the metal head grain 31 is a connecting end 371. The connecting end 371 is retractably arranged relative to the metal head grain 31.

[0071] Optionally, taking the example of the second connecting portion including two first ears 37, in this embodiment, the first ears 37 are rods with retractable ends, and the two first ears 37 are parallelly inserted into the metal head particle 31, so that the two ends of the first ears 37 are respectively exposed on opposite sides of the metal head particle 31, and the exposed part is the connecting end 371.

[0072] In this embodiment, when the wrist-worn device 100 is placed horizontally, the two connecting holes 11c in the guide groove 11a are spaced apart along the thickness direction of the device body 10, and the guide section 11b is provided on one side of at least two connecting holes 11c along the horizontal direction, so that the two connecting ends 371 can move simultaneously along the guide section 11b until they extend into the connecting holes 11c.

[0073] Reference Figure 6 In another embodiment, the metal head particle 31 is provided with a mounting cavity, and at least two mounting holes 311b are respectively provided on opposite side walls of the mounting cavity. The second connecting portion is provided with a first spring ear 37 corresponding to each mounting hole 311b, and each first spring ear 37 is movably provided in a mounting hole 311b; a control component is provided in the mounting cavity, and the end of the first spring ear 37 away from the connecting end 371 is connected to the control component, and the control component can drive the first spring ear 37 to move in the mounting hole 311b.

[0074] In this embodiment, the second connecting portion is provided with at least four first ears 37. These ears 37 are generally cylindrical rods with their ends immovable. By controlling the movement of the first ears 37 with a control member, at least two first ears 37 on the same side can be respectively extended into or retracted into the mounting cavity through the at least two mounting holes 311b.

[0075] Optionally, the control member includes an elastic member disposed within the mounting cavity, with its ends connected to the first ears 37 located on different side walls. For example, the elastic member is a spring. When the first ears 37 on either side are squeezed, they move toward each other, causing the spring to contract. When released, the spring returns to its original position, causing the first ears 37 on either side to pop out.

[0076] Furthermore, the telescopic movement of the first spring ear 37 can be controlled by controlling the contraction and extension of the elastic member.

[0077] Reference Figure 6 and Figure 7 In one embodiment, the control component includes a control body 33 and a first spring 35. The control body 33 is movably arranged in the installation cavity. The first spring 35 is sleeved on the first ear 37, and the two ends of the first spring 35 are respectively connected to the metal head particle 31 and the first ear 37; the control body 33 is provided with guide surfaces 333a facing the installation hole 311b on both sides of the part of the control body 33 located in the installation cavity. When the control body 33 moves, the first spring 35 causes the end of the first ear 37 away from the connection end to slide and abut against the guide surface 333a, so that the first ear 37 extends or retracts into the installation cavity.

[0078] In this embodiment, the starting point and the ending point of the guide surface 333a along the sliding direction of the first ear 37 are defined as the first position and the second position respectively.

[0079] When the first connection portion and the second connection portion are assembled together, the end of the first ear 37 away from the connection end 371 is in the first position. At this time, the guide surface 333a presses the first ear 37 so that the first ear 37 extends into the connection hole 11c, and the first spring 35 is in a compressed state. When the control body 33 moves toward the bottom wall of the installation cavity, the end of the first ear 37 away from the connection end 371 abuts the guide surface 333a under the action of the first spring 35 and slides along the guide surface 333a to the second position. At this time, the first ear 37 retracts from the connection hole 11c, and the first connection portion and the second connection portion are disconnected.

[0080] Optionally, the movement of the control body 33 can be controlled by an electronic control structure. For example, a micro-actuator can be provided at the second connection portion, with the output of the actuator connected to the control body 33. By inputting corresponding instructions into the device body, the micro-actuator drives the control body 33 to move, thereby achieving the extension and retraction of the first ear 37, thereby achieving the disassembly and assembly of the first and second connection portions.

[0081] In another embodiment, the metal head particle 31 is provided with an avoidance opening 315a connected to the installation cavity, and the control body 33 includes a pressing portion 331 and a guide portion 333 connected to each other. The pressing portion 331 is provided at the avoidance opening 315a, and the guide portion 333 is provided in the installation cavity and has a guide surface 333a. Pressing the pressing portion 331 causes the guide portion 333 to move away from the avoidance opening 315a, so that the first ear 37 extending out of the installation cavity is retracted.

[0082] In this embodiment, the pressing portion 331 is exposed at the escape opening 315a. Manually pressing the pressing portion 331 causes the guide portion 333 to move away from the escape opening 315a. The pressing portion 331 can be positioned protruding from the escape opening 315a; alternatively, if the escape opening 315a is relatively large, the pressing portion 331 can be substantially flush with the escape opening 315a.

[0083] In this embodiment, the distance between the two guide surfaces 333a gradually decreases from the side of the guide portion 333 away from the avoidance opening 315a to the side closer to the avoidance opening 315a. The side of the guide surface 333a away from the avoidance opening 315a is defined as the first position, and the side of the guide surface 333a closer to the avoidance opening 315a is defined as the second position.

[0084] When the first connection portion and the second connection portion are assembled together, the end of the first ear 37 away from the connection end 371 is in the first position. At this time, the guide surface 333a presses the first ear 37 so that the first ear 37 extends into the connection hole 11c, the first spring 35 is in a compressed state, and the pressing portion 331 extends out of the avoidance opening 315a; the pressing portion 331 is pressed, the guide portion 333 moves away from the avoidance opening 315a, and the end of the first ear 37 away from the connection end 371 abuts the guide surface 333a under the action of the first spring 35 and slides along the guide surface 333a to the second position. At this time, the first ear 37 retracts from the connection hole 11c, and the first connection portion and the second connection portion are disconnected.

[0085] In the above embodiment, at least two pairs of first ears 37 can be controlled to extend and retract simultaneously by a control body 33, thereby realizing quick disassembly and assembly of the wristband 30 and the device body 10, which is convenient, fast and efficient.

[0086] Correspondingly, since the control body 33 can control the simultaneous extension and contraction of at least two first ears 37, the guide section 11b and at least two connection holes 11c on the side wall of the connecting groove 11 can be arranged in sequence, or the side wall of the connecting groove 11 may no longer be provided with the guide section 11b.

[0087] Optionally, the guide surface 333a is an inclined plane; or, the guide surface 333a is an arc surface that arches toward the first ear 37, giving the first ear 37 a stable pressing force at the first position, and the end of the first ear 37 moves more smoothly along the guide surface 333a.

[0088] Optionally, a spring or a second spring 36 may be installed between the bottom of the guide portion 333 and the bottom wall of the installation cavity to provide a restoring force for the control body 33 and enable the control body 33 to provide a continuous and stable pressing force for the first ear 37 .

[0089] It can be understood that a limiting platform 335 is provided between the pressing portion 331 and the guiding portion 333, and the limiting platform 335 is used to abut against the inner wall surface of the avoidance opening 315a. Figure 7 In this embodiment, the size of the guide portion 333 is larger than that of the pressing portion 331. At the junction of the pressing portion 331 and the guide portion 333, the extra portion of the surface of the guide portion 333 forms a limit plate 335. When the end of the first ear 37 away from the connecting end 371 is in the first position, the limit plate 335 abuts against the inner wall surface of the avoidance hole to prevent the control body 33 from falling out and provides support for the control body 33, so that it can stably press against the first ear 37, thereby ensuring the relative stability of the first ear 37 and the connecting hole 11c.

[0090] Reference Figure 8 In one embodiment, a retaining hole 33a is defined within the control body 33. One end of the second spring 36 is connected to the bottom wall of the mounting cavity, while the other end extends into the retaining hole 33a and abuts the upper wall of the retaining hole 33a. This not only fully utilizes the space in the mounting cavity, resulting in a more compact structure, but also allows for the use of a higher-spec second spring 36, providing sufficient pressure against the first spring tab 37 and partially retaining the second spring 36 within the control body 33, improving connection stability.

[0091] Furthermore, the control body 33 is provided with two limiting holes 33 a arranged side by side, and the two second springs 36 extend into the two limiting holes 33 a in a one-to-one correspondence.

[0092] Reference Figure 6 In this embodiment, a sleeve 313 is positioned within the mounting hole 311b. The outer circumference of the sleeve 313 is serrated, as is the inner wall of the mounting hole 311b. The sleeve 313 is positioned on the side of the mounting hole 311b facing the outside and engages with the inner wall of the mounting hole 311b to prevent relative rotation and disengagement, thereby enhancing connection reliability. The sleeve 313 and the first spring 35 are both mounted on the first spring lug 37, which is equipped with a retaining ring. The ends of the first spring 35 elastically abut the sleeve 313 and retaining ring, respectively.

[0093] Reference Figure 6In one embodiment, the metal head granule 31 includes a head granule body 311 and a cover plate 315. The head granule body 311 is provided with a mounting slot 311a. The mounting slot 311a has at least two mounting holes 311b defined on opposite side walls thereof. The cover plate 315 covers the notches of the mounting slot 311a to form a mounting cavity. The cover plate 315 is provided with a clearance opening 315a. During assembly, at least four first lugs 37 are inserted into each mounting hole 311b. The control body 33 and other components are then placed into the mounting slot 311a. The cover plate 315 is then secured to the head granule body 311 using screws or other means. This completes assembly of the metal head granule 31, making it convenient, quick, and efficient.

[0094] In addition, refer to Figure 1 and Figure 2 The wristband 30 also includes other particles and a middle particle 39 for connecting the particles. One end of the metal head particle 31 is hinged to the middle particle 39 through a second ear 38. The second ear 38 is a rod structure with retractable ends. The particles are connected through the second ear 38 to complete the assembly of the wristband 30. The technology is mature, easy to implement, and low in cost.

[0095] The above are only preferred embodiments of the present invention and are not intended to limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's description and drawings, or direct / indirect applications in other related technical fields, within the scope of the present invention are included in the patent protection scope of the present invention.

Claims

1. A wrist-worn device, characterized in that: The wrist-worn device comprises: An equipment body, the equipment body being provided with a first connecting portion, the first connecting portion being provided with a connecting groove, the connecting groove having two opposite side walls, each of the side walls of the connecting groove being provided with at least three connecting holes; and A wristband, wherein the wristband is provided with a second connecting portion, the second connecting portion is a metal component, the second connecting portion is provided with a connecting end corresponding to each connecting hole, the second connecting portion extends into the connecting slot, and each connecting end extends into a corresponding connecting hole to connect the wristband to the device body; At least two of the connection holes are spaced apart and arranged along the thickness direction of the device body; a line connecting the centers of at least two of the connection holes is on a straight line, and the extension direction of the straight line is the same as the thickness direction of the device body; Center points of at least three of the connecting holes are not on the same straight line.

2. The wrist-worn device according to claim 1, wherein: The side wall of the connecting groove is provided with a guide groove, and the bottom wall of the guide groove is provided with the connecting hole; A guide section is provided on the side of the guide groove, and the guide section passes through the side wall of the guide groove and is smoothly connected to the bottom wall of the guide groove.

3. The wrist-worn device according to claim 1, wherein: The second connecting portion includes: Metal head pellets; and At least two first spring ears are provided in the metal head particle, and the portion of the first spring ear exposed on the side of the metal head particle is the connecting end, and the connecting end is retractably provided relative to the metal head particle.

4. The wrist-worn device according to claim 3, wherein: The metal head particle is provided with a mounting cavity, and at least two mounting holes are respectively provided on opposite side walls of the mounting cavity. The second connecting portion is provided with a first spring tab corresponding to each mounting hole, and each first spring tab is movably provided in one of the mounting holes. A control member is provided in the mounting cavity, and an end of the first spring ear away from the connection end is connected to the control member. The control member can drive the first spring ear to move in the mounting hole.

5. The wrist-worn device according to claim 4, wherein: The control element includes: a control body, the control body being movably disposed in the installation cavity; and a first spring, wherein the first spring is sleeved on the first spring ear, and two ends of the first spring are respectively connected to the metal head particle and the first spring ear; Guide surfaces facing the mounting hole are provided on both sides of the portion of the control body located in the mounting cavity. When the control body moves, the first spring causes the end of the first ear away from the connection end to slide and abut against the guide surfaces, so that the first ear extends or retracts into the mounting cavity.

6. The wrist-worn device according to claim 5, wherein: The metal head particle is provided with an avoidance opening connected to the installation cavity, and the control body includes a pressing part and a guide part connected to each other. The pressing part is provided at the avoidance opening, and the guide part is provided in the installation cavity and is provided with the guide surface. Pressing the pressing part causes the guide part to move away from the avoidance opening, so that the first raw ear extending out of the installation cavity is retracted.

7. The wrist-worn device according to claim 6, wherein: The control member further includes a second spring, two ends of which are respectively connected to the bottom wall of the installation cavity and the control body; And / or, a limiting platform is provided between the pressing portion and the guiding portion, and the limiting platform is used to abut against the inner wall surface of the avoidance opening; And / or, the guide surface is an arc-shaped surface; And / or, the distance between the two guide surfaces gradually decreases from the side of the guide portion away from the escape opening to the side close to the escape opening.

8. The wrist-worn device according to claim 6, wherein: The metal head particles include: A head particle body, wherein the head particle body is provided with a mounting groove, and at least two mounting holes are respectively provided on two opposite side walls of the mounting groove; and A cover plate covers the notch of the installation slot to form the installation cavity, and the cover plate is provided with the avoidance opening.

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