CN113876088A

CN113876088A - Hasp, bandage subassembly and wearable equipment

Info

Publication number: CN113876088A
Application number: CN202010630751.7A
Authority: CN
Inventors: 易炜
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2022-01-04

Abstract

The application relates to a buckle, a bandage assembly and wearable equipment. The lock catch comprises a shell, a guide post, a top block, an elastic piece and a key. The casing is equipped with the mounting hole, and the mounting hole extends to the relative both sides of casing, and the mounting hole can be used for wearing to establish the bandage. The guide post, the top block, the elastic piece and the key are all arranged on the shell. In the process that the bandage penetrated the mounting hole, the kicking block was driven along the guide post to the bandage and removed and compress the elastic component, and the elastic component can drive the kicking block and bandage looks block. The button can be pressed and moved along the width direction of the binding band to drive the top block to move along the guide post, so that the binding band can be extracted from the lock catch. When above-mentioned hasp is used for wearable equipment, the bandage can be fixed in the hasp more easily to promote the convenience of wearing the operation. After the bandage and the lock catch are clamped, the user can press the key to enable the bandage to be drawn out from the lock catch, and therefore the user can take down the wearable device from the body conveniently. The lock catch improves the convenience of wearing operation.

Description

Hasp, bandage subassembly and wearable equipment

Technical Field

The application relates to the technical field of wearable equipment, in particular to a lock catch, a bandage assembly and wearable equipment.

Background

Wearable equipment such as intelligent wrist-watch, intelligent bracelet adopt two segmentation watchband structures usually, and the end of one of them section watchband is equipped with the belt buckle, and the free end of another section watchband can pass the fixed connection of belt buckle in order to realize two sections watchbands. The buckle is generally of a pin buckle type structure, and after the free end of the watchband penetrates into the buckle, a user usually needs to operate the pin buckle of the buckle to enable the pin buckle to enter a through hole in the watchband, so that the fixed connection of the two sections of watchbands is realized. The buckle of this structure is inconvenient to operate during wearing.

Disclosure of Invention

The embodiment of the application discloses in the first aspect a hasp, the hasp can be used to wearable equipment to promote the convenience of wearing the operation.

A latch, comprising:

the binding belt fixing device comprises a shell, a fixing device and a fixing device, wherein the shell is provided with mounting holes, the mounting holes extend to two opposite sides of the shell, and the mounting holes can be used for penetrating through a binding belt;

the guide post is arranged on the shell;

the ejector block is arranged on the shell;

the elastic piece is arranged on the shell; and

the key is arranged on the shell;

in the process that the binding band penetrates into the mounting hole, the binding band can drive the ejector block to move along the guide post and compress the elastic piece, and the elastic piece can drive the ejector block to be clamped with the binding band; after the binding band is clamped with the lock catch, the key can be pressed and moves along the width direction of the binding band so as to drive the top block to move along the guide post, and therefore the binding band can be extracted from the lock catch.

When above-mentioned hasp is used for wearable equipment, the bandage can penetrate the mounting hole of casing and order about the kicking block and remove along the guide post, and the elastic component then can order about kicking block and bandage looks block to make the bandage be fixed in the hasp more easily, thereby promote the convenience of wearing the operation. After bandage and hasp block, the user presses the button so that the button removes along the width direction of bandage, and the button can order about the kicking block to remove along the guide post to make the bandage can follow the hasp and take out, thereby make things convenient for the user to take off wearable equipment from the health. The lock catch improves the convenience of wearing operation.

In one embodiment, the top block comprises a body and a lug connected to the body, the body is provided with a through hole, and the guide column penetrates through the through hole; and in the process that the binding band penetrates into the mounting hole, the elastic piece can drive the lug to be clamped with the binding band.

In one embodiment, the elastic member is sleeved on the guide post.

In one embodiment, at least two guide posts are arranged, the guide posts are arranged on two opposite sides of the projection in the width direction of the binding band, and each guide post is correspondingly provided with an elastic piece.

In one embodiment, the projection is provided with a first matching surface, the first matching surface is a plane, and the first matching surface and the top block are obliquely arranged along the moving direction of the guide column; in the process that the binding band penetrates into the mounting hole, the binding band presses against the first matching surface, so that the ejector block moves along the guide column.

In one embodiment, at least one of the body and the key is provided with a second matching surface, and the top block is obliquely arranged with the second matching surface along the moving direction of the guide column; the second matching surface guides the top block to move along the guide post in the process that the key is pressed and moves into the shell, so that the lug is separated from the binding band.

In one embodiment, the housing is provided with a cavity communicated with the mounting hole, and the guide column, the top block and the elastic piece are all arranged in the cavity; the key comprises a pressing part and a limiting part which are integrally formed, the limiting part is contained in the cavity, the limiting part is provided with the second matching surface, and the pressing part is exposed outside the shell.

In one embodiment, the housing comprises an outer frame and a bottom plate, wherein the bottom plate covers one end of the outer frame and forms the cavity with the outer frame; the mounting holes are located in the outer frame, the guide posts are connected to the bottom plate, and the keys are arranged on the outer frame.

In one embodiment, the keys are arranged on two opposite sides of the outer frame in the width direction of the binding band.

The embodiment of the application discloses in a second aspect a bandage subassembly, and the bandage subassembly can be used to wearable equipment to promote the convenience of wearing the operation.

The utility model provides a bandage subassembly, includes bandage and foretell hasp, the bandage includes first bandage and second bandage, the one end of first bandage connect in the hasp, the second bandage can wear to locate the mounting hole and with kicking block looks block.

In one embodiment, the strap assembly includes a clip pin, and the clip pin penetrates through the first strap and the lock catch along the width direction of the first strap, so that the first strap can rotate relative to the lock catch.

In one embodiment, the second strap is provided with a plurality of clamping holes arranged at intervals, and the elastic piece can drive the top block to enter the clamping holes so that the second strap is clamped with the lock catch.

The third aspect of the embodiment of the application discloses wearable equipment, and the wearing operation of the wearable equipment is convenient and fast.

A wearable device comprises an electronic device and the strap assembly, wherein one end of the first strap, which is far away from the lock catch, is connected to one end of the electronic device, and one end of the second strap is connected to the other opposite end of the electronic device.

Drawings

In order to more clearly illustrate the embodiments of the present application 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 some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a wearable device of an embodiment;

FIG. 2 is a schematic diagram of an electronic device of a wearable device of an embodiment;

FIG. 3 is a schematic view of a clasp of a wearable device according to an embodiment;

FIG. 4 is a front view of a latch of the wearable device of FIG. 3;

FIG. 5 is an exploded view of the latch of the wearable device of FIG. 3;

fig. 6 is a cross-sectional view of a second strap piercing clasp of the wearable device of an embodiment;

FIG. 7 is a cross-sectional view of a second strap of the wearable device of an embodiment engaged with a latch;

FIG. 8 is another cross-sectional view of the wearable device of FIG. 7 with the secondary strap engaged with the latch;

fig. 9 is a cross-sectional view of the wearable device of an embodiment with the second strap extracted from the latch.

Reference numerals: 10. a wearable device; 11. an accommodating space; 100. an electronic device; 103. a card slot; 110. a middle frame; 120. a display screen module; 200. a strap assembly; 210. a first strap; 220. a second strap; 220a, a clamping hole; 230. locking; 230a, mounting holes; 231. a housing; 231a, a cavity; 2311. an outer frame; 2313. a base plate; 233. a guide post; 235. a top block; 235a, a through hole; 2351. a body; 2353. a bump; 237. an elastic member; 239. pressing a key; 2391. a pressing part; 2393. a limiting part; 240. a band; 250. clamping a needle; a1, a first mating surface; a2, second mating surface.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1, in some embodiments, wearable device 10 includes an electronic device 100 and a strap assembly 200, electronic device 100 being mounted to strap assembly 200 and capable of being worn to a user's wrist by strap assembly 200. Referring to fig. 2, the electronic device 100 includes a middle frame 110 and electronic components such as a circuit board and a battery disposed in the middle frame 110, wherein the middle frame 110 has a mounting cavity, and the electronic components such as the circuit board and the battery are disposed in the mounting cavity. The middle frame 110 may be made of non-metal materials such as plastic, rubber, silica gel, wood, ceramic or glass, and the middle frame 110 may also be made of metal materials such as stainless steel, aluminum alloy or magnesium alloy. The middle frame 110 may also be a metal injection-molded part, that is, the structural rigidity of the middle frame 110 is ensured by using a metal material, and the inner surface of the metal body is formed with a protrusion, a groove, a threaded hole and other structures for assembling and positioning by injection molding.

In some embodiments, the wearable device 10 is a smart watch, the installation cavity is provided with electronic components such as a battery, a circuit board, the display screen module 120, and a biosensor, the circuit board may integrate the electronic components such as a processor, a storage unit, and a communication module of the wearable device 10, and the battery may supply power to the circuit board, the display screen module 120, and other electronic components. The display module 120 covers the installation cavity and is connected to the middle frame 110, which can be used to display information and provide an interactive interface for a user. The Display screen module 120 may further include a Display screen and a cover plate covering the Display screen, the Display screen may be an LCD (Liquid Crystal Display) screen or an OLED (Organic Light-Emitting Diode) screen, and the cover plate may be a glass cover plate or a sapphire cover plate. The cover plate is transparent and has relatively high light transmittance, for example, the light transmittance of the cover plate is over 80%. The display module 120 may have a touch function, but the touch function is not required, and the display module 120 is not required. Biosensors may be used to detect biological data such as heart rate, respiration rate, blood pressure, or body fat. In some embodiments, the biosensor may also be used to detect a state of motion, for example, for step counting. In other embodiments, the wearable device 10 may be a smart band or the like.

The middle frame 110 is substantially rectangular frame-shaped, and four corners of the rectangle may be processed into arc transition through a chamfering process, so that the wearable device 10 has good appearance characteristics. In other embodiments, the middle frame 110 may have a circular frame shape. The side of the middle frame 110 may be provided with a fitting structure for mounting the band assembly 200, and the band assembly 200 can form a reliable connection with the middle frame 110 through the fitting structure of the middle frame 110 to reliably wear the electronic device 100 to the hand of the user. In some embodiments, strap assembly 200 can also be relatively easily detached from middle frame 110 to allow a user to easily replace strap assembly 200. For example, a user may purchase various styles of strap assemblies 200 and replace the strap assemblies 200 according to a use scenario to improve convenience of use. For example, a user may use a more formal strap assembly 200 in formal situations and a casual style strap assembly 200 in casual recreational situations.

With continued reference to fig. 1 and 2, in the embodiment of the present application, the strap assembly 200 includes two straps, namely, a first strap 210 and a second strap 220, the two opposite ends of the electronic device 100 are respectively provided with a clamping groove 103, each of the first strap 210 and the second strap 220 has one end connected to the electronic device 100, and the ends of the first strap 210 and the second strap 220 facing away from the electronic device 100 may be fastened together to form the accommodating space 11, so that the electronic device 100 can be worn on the wrist of the user through the strap assembly 200. In other embodiments, the strap assembly 200 may be a one-piece structure, one end of the strap assembly 200 is connected to one end of the electronic device 100, the other end of the electronic device 100 may be provided with a buckle for the strap to pass through, the free end of the strap may pass through the buckle and be fixed to another position of the strap to form the receiving space 11, and the size of the receiving space 11 is easily adjusted to facilitate the user to wear the strap.

Referring to fig. 1 and 3, the strap assembly 200 includes a buckle 230, and the buckle 230 is used to fix the strap so that the wearable device 10 can be reliably worn on the wrist of the user. Specifically, in this embodiment, one end of the first strap 210 is connected to the buckle 230, one end of the first strap 210 away from the buckle 230 is connected to one end of the middle frame 110, one end of the second strap 220 is connected to the opposite end of the middle frame 110, and the second strap 220 can pass through the buckle 230 and be engaged with the buckle 230, so as to achieve the fixed connection between the second strap 220 and the first strap 210. In some embodiments, the length of first strap 210 is less than the length of second strap 220 in a flattened state. The material of the first strap 210 and the second strap 220 may be the same, for example, the material of the first strap 210 and the material of the second strap 220 may both be soft rubber, so that the first strap 210 and the second strap 220 have the characteristics of softness and easy deformation. In other embodiments, the first strap 210 and the second strap 220 may be made of leather or synthetic leather, and the first strap 210 and the second strap 220 may also have the characteristics of flexibility and easy deformation. Of course, in other embodiments, the material of first strap 210 and second strap 220 may be different, and the flattened length of first strap 210 may be equal to or greater than the flattened length of second strap 220.

Referring to fig. 4 and 5, the latch 230 is substantially rectangular box-shaped, and includes a housing 231, a guiding post 233, a top block 235, an elastic member 237 and a button 239, wherein the guiding post 233, the top block 235, the elastic member 237 and the button 239 are disposed on the housing 231, and are supported and limited by the housing 231. The housing 231 is provided with mounting holes 230a, the mounting holes 230a extending to opposite sides of the housing 231, the mounting holes 230a being capable of being used to pass a strap therethrough. Specifically, in the embodiment where the latch 230 is connected to the first strap 210, the free end of the second strap 220 (i.e., the end away from the electronic device 100) can be inserted into the mounting hole 230a of the latch 230. The guide post 233 is fixedly connected to the housing 231, and the top block 235 is provided in the housing 231 and is movable along the guide post 233. During the process of wearing the wearable device 10 on the wrist, the user may insert the free end of the second strap 220, i.e. the end of the second strap 220 away from the electronic device, into the mounting hole 230a to force the top block 235 to move along the guide post 233 by the second strap 220 and compress the elastic member 237. Referring to the second strap 220 passing through the portion of the locker 230, the top block 235 can be moved in the thickness direction of the second strap 220 by being urged by the second strap 220. In other words, during the process in which the second strap 220 is threaded into the mounting hole 230a, the engagement of the second strap 220 with the top block 235 converts the movement of the second strap 220 in the length direction thereof into the movement of the top block 235 in the thickness direction of the second strap 220, thereby enabling the second strap 220 to be continuously threaded from one end of the mounting hole 230a and to protrude from the other end of the mounting hole 230 a.

Referring to fig. 6 and 7, during the process of inserting the second strap 220 into the mounting hole 230a, the elastic element 237 can drive the top block 235 to be engaged with the second strap 220 to fix the first strap 210 and the second strap 220 to each other, so as to form the receiving space 11 adapted to the size of the wrist of the user. Specifically, in this embodiment, the second strap 220 is provided with a plurality of spaced fastening holes 220a along the length extension direction thereof, and the elastic element 237 can drive the top block 235 into the fastening holes 220a during the process of the second strap 220 penetrating into the fastener 230, so that the second strap 220 is fastened with the fastener 230. In other embodiments, the second strap 220 may be provided with a plurality of saw-toothed slots, which can also drive the top block 235 to move in the thickness direction of the second strap 220 during the process of the second strap 220 passing through the lock catch 230, and the elastic element 237 can press the top block 235 to make the top block 235 engage with the second strap 220.

Further, referring to fig. 1, the strap assembly 200 may include a band 240 sleeved on the first strap 210 and capable of moving along the first strap 210, and after the free end of the second strap 220 passes through the buckle 230, the free end of the second strap 220 may be inserted through the band 240, so that the band 240 may be used to limit the free end of the second strap 220, so that the free end of the second strap 220 can be attached to the first strap 210.

Referring to fig. 8 and 9, during the process of removing the wearable device 10 from the wrist, the user may press the button 239 of the latch 230 to move the button 239 in the width direction of the second strap 220, and further, drive the top block 235 to move along the guide post 233 to enable the second strap 220 to be extracted from the latch 230. Specifically, in the present embodiment, with reference to the second strap 220 penetrating through the portion of the lock catch 230 or with reference to the first strap 210, the keys 239 are disposed on two opposite sides of the housing 231 in the width direction of the second strap 220 or the first strap 210. The user can grip the buttons 239 at both sides of the lock catch 230 with two fingers and apply a force to the buttons 239 at both sides in the width direction of the first strap 210, so that the buttons 239 are retracted into the housing 231, and the top block 235 is driven to move along the guide post 233, so that the second strap 220 can be pulled out from the lock catch 230.

With continued reference to fig. 8 and 9, in the present embodiment, the housing 231 includes an outer frame 2311 and a bottom plate 2313, the bottom plate 2313 covers one end of the outer frame 2311 and forms a cavity 231a with the outer frame 2311, and the guide posts 233, the top block 235 and the elastic member 237 are disposed in the cavity 231 a. Referring to fig. 5, the mounting holes 230a are formed in the outer frame 2311, the mounting holes 230a communicate with the cavity 231a, the guide posts 233 are connected to the bottom plate 2313, and the buttons 239 are formed in the outer frame 2311. The base plate 2313 and the outer frame 2311 may be made of a metal material such as stainless steel or aluminum alloy or magnesium alloy, so that the housing 231 of the locker 230 has high structural strength, and deformation of the second strap 220 is suppressed during the process of inserting the second strap 220 into the locker 230, thereby facilitating wearing and preventing the second strap 220 from being easily removed from the locker 230. In some embodiments, the outer frame 2311 and the bottom plate 2313 are fixedly coupled using threaded fasteners, such as screws, to facilitate easy assembly and disassembly for maintenance of the latch 230. In other embodiments, the bottom plate 2313 may be fixedly connected to the outer frame 2311 by welding, bonding, or the like. Further, in the present embodiment, the bottom plate 2313 has a plate shape, and after the first strap 210 and the second strap 220 form the housing space 11, the bottom plate 2313 may be attached to the body of the user. In other words, after first strap 210 and second strap 220 form housing space 11, base plate 2313 faces electronic device 100. In other embodiments, the housing 231 may have other structures, for example, the housing 231 may be split into two parts along the width direction of the first strap 210, and the two parts are assembled to form the housing 231.

Further, referring to fig. 1, in some embodiments, the strap assembly 200 includes a locking pin 250, and the locking pin 250 is inserted through the first strap 210 and the outer frame 2311 in the width direction of the first strap 210, so that the first strap 210 can rotate relative to the buckle 230. Specifically, in the present embodiment, the outer frame 2311 is provided with a lug, the lug is provided with a hole for passing the clamping needle 250, and the clamping needle 250 may be a structure with two ends capable of elastically stretching. In the process of assembling the first strap 210 and the lock catch 230, the fastening pin 250 may be first inserted into one end of the first strap 210 away from the electronic device 100, and then the fastening pin 250 is inserted into the hole of the lug, so as to realize the rotation fit between the first strap 210 and the lock catch 230. The rotating fit structure of the first strap 210 and the lock catch 230 can facilitate the user to adjust the angle of the lock catch 230, and further facilitate the user to penetrate the second strap 220 into the mounting hole 230a of the lock catch 230, so as to improve the wearing convenience. Of course, the latch 250 is not required. For example, in other embodiments, first strap 210 may be fixedly coupled to bottom plate 2313 or outer frame 2311 of latch 230.

Further, referring to fig. 6, with reference to the bottom plate 2313, during the process of wearing the wearable device 10 by the user, one end of the second strap 220 away from the electronic device 100 may be inserted into the mounting hole 230a of the buckle 230, the second strap 220 presses against the top block 235 to move the top block 235 toward the bottom plate 2313 and compress the elastic member 237, so that the top block 235 can smoothly pass through the clipping hole 220a of the second strap 220, and the second strap 220 can be continuously inserted into one end of the mounting hole 230a and protrude out of the other end of the mounting hole 230 a. In the process that the second strap 220 is threaded into the mounting hole 230a, at the position where the top block 235 is aligned with the locking hole 220a, the pressing force of the second strap 220 against the top block 235 is small or even disappears, and the elastic element 237 can drive the top block 235 to move away from the bottom plate 2313 to enter the locking hole 220a, so that the second strap 220 is locked with the lock catch 230. After the second strap 220 is fastened to the buckle 230, the user can still hold the free end of the second strap 220 and stretch the second strap 220 to make the second strap 220 continuously pass through the mounting hole 230a, thereby facilitating the adjustment of the size of the receiving space 11, but when the user stretches the portion of the second strap 220 that does not pass through the buckle 230 in the opposite direction, the fastening of the top block 235 and the fastening hole 220a can restrict the movement of the second strap 220 relative to the buckle 230, thereby preventing the second strap 220 from being easily withdrawn from the buckle 230. In other words, the top piece 235 is configured to allow for one-way movement of the second strap 220 in the latch 230.

Referring to fig. 5, the top block 235 includes a body 2351 and a projection 2353 connected to the body 2351, wherein the elastic member 237 drives the projection 2353 to engage with the second strap 220 during the process of passing the second strap through the mounting hole 230 a. Specifically, in the present embodiment, the body 2351 is a thin plate, the body 2351 is provided with a through hole 235a, and the guide post 233 is inserted into the through hole 235a to realize the sliding fit between the top block 235 and the guide post 233. The body 2351 has a larger cross-sectional area than the projection 2353 to facilitate engagement of the guide post 233 and the resilient member 237 with the top block 235. For example, with a geometric plane perpendicular to the direction of movement of the top piece 235 as a reference plane, the ratio of the area of the body 2351 orthographically projected onto the reference plane to the area of the tab 2353 orthographically projected onto the reference plane may range from 7-10. The volume of the top block 235 and the projection 2353 can be relatively small and can be clamped with the clamping hole 220a of the second binding belt 220, and the body 2351 can be conveniently processed into a structure matched with the guide post 233 and the elastic element 237. In this embodiment, the body 2351 is integrally formed with the tab 2353. In other embodiments, the tab 2353 can be fixedly connected to the body 2351 by welding, bonding, etc.

With reference to fig. 5, in the present embodiment, the elastic element 237 is a spring, the elastic element 237 is sleeved on the guiding post 233, the elastic element 237 is disposed between the bottom plate 2313 and the body 2351, and the elastic element 237 can be deformed along the guiding post 233, so as to prevent the top block 235 from moving and deflecting. Further, the sliding engagement of the body 2351 with the guide post 233 may also provide a guiding and limiting function with the guide post 233 to prevent the top block 235 from deflecting during movement. Further, at least two guide posts 233 may be provided, and in the width direction of the first strap 210, the guide posts 233 are provided on two opposite sides of the projection 2353, and each guide post 233 is provided with the elastic member 237 correspondingly. Because the opposite sides of the projection 2353 are provided with the guide posts 233, the guide posts 233 on the two sides can limit and guide the movement of the top block 235 when the projection 2353 moves, so that the movement of the top block 235 is stable. It is understood that the resilient member 237 is not required to be disposed around the guide post 233, for example, the resilient member 237 may be connected to the base plate 2313 at one end and the body 2351 at the other end, and the resilient member 237 is disposed at a distance from the guide post 233. In other embodiments, the elastic member 237 may be a spring or a spring-post structure.

Referring to fig. 5 and 6, the protrusion 2353 is provided with a first engagement surface a1, the first engagement surface a1 is a plane, and the first engagement surface a1 and the top block 235 are disposed obliquely along the moving direction of the guide post 233. During the process of the second strap 220 penetrating into the mounting hole 230a, the second strap 220 presses against the first mating surface a1 to move the top block 235 along the guide post 233. Illustratively, in the present embodiment, when the projection 2353 is cut off in a plane perpendicular to the width direction of the first strap 210, the cut-off projection 2353 has a trapezoidal cross-section. Further, the trapezoid may be a right-angled trapezoid, i.e., a surface opposite to the first mating face a1 may be disposed parallel to the moving direction of the top block 235. The flat surface may restrain the second strap 220 after the tab 2353 enters the catch hole 220a of the second strap 220. This flat surface prevents second strap 220 from easily disengaging from latch 230 when the portion of second strap 220 not passing through latch 230 is pulled in a reverse direction to provide second strap 220 with a tendency to disengage from latch 230. Of course, in other embodiments, the cross-section of the tab 2353 can be other shapes. For example, the face opposite the first mating face a1 may be planar and at an acute angle of less than 5 degrees to the direction of movement of the top piece 235. As another example, the face opposite the first mating face a1 may be a curved face. For another example, a top surface of the tab 2353 away from the body 2351 can be planar or curved.

Further, a rectangular coordinate system is established with the moving direction of the second strap 220 in the lock catch 230 as the X-axis and the moving direction of the top block 235 as the Y-axis, and the first mating surface a1 may be perpendicular to the XOY plane, where O is the origin of the coordinate system. Further, referring to fig. 8, in the present embodiment, the button 239 is movable along the Z axis. The face of the tab 2353 opposite the first mating face a1 may also be perpendicular to the XOY plane. With the projection 2353 of this structure, during the process of the second strap 220 penetrating into the buckle 230, the force applied by the second strap 220 to the first mating surface a1 can be decomposed into a component force along the moving direction of the buckle 230 (i.e. the X-axis direction) of the second strap 220 and a component force perpendicular to the moving direction (i.e. the Y-axis direction), the component force along the moving direction of the buckle 230 of the second strap 220 can drive the second strap 220 to continuously penetrate into and extend out of the buckle 230, and the component force perpendicular to the moving direction of the buckle 230 of the second strap 220 drives the top block 235 to move along the thickness direction of the second strap 220, so that the elastic element 237 is compressed. The lock catch 230 of the above structure can realize the smooth movement of the second strap 220 and the projection 2353. Of course, in other embodiments, the first mating surface a1 may be disposed obliquely to the XOY plane. For example, the first mating surface a1 may be at an acute angle of less than 10 degrees from the XOY plane.

Of course, it will be appreciated that in embodiments where the second strap 220 is provided with a plurality of saw-tooth shaped slots, the first mating surface a1 need not be disposed obliquely to the top block 235 in the direction of movement of the guide post 233. In this embodiment, the first engagement surface a1 may be a curved surface or a flat surface, and the first engagement surface a1, which is planar, may be parallel to the direction of movement of the top piece 235 along the guide post 233. During the process of threading the second strap 220 into the buckle 230, the slot wall of the zigzag slot on the second strap 220 can drive the top block 235 to move along the thickness direction of the second strap 220, so that the elastic member 237 is compressed. In other words, in this embodiment, the force of the slot walls of the saw-tooth shaped slot on second strap 220 against top piece 235 may be resolved into a component force that urges top piece 235 to move in the thickness direction of second strap 220.

Referring to fig. 5, at least one of the body 2351 and the key 239 is provided with a second engagement surface a2, and in combination with fig. 8 and 9, the second engagement surface a2 is a plane and the top block 235 is disposed obliquely to the second engagement surface a2 along the moving direction of the guide post 233. During the pressing and moving of the button 239 into the housing 231, the second engagement surface a2 guides the top piece 235 to move along the guide post 233 so that the top piece 235 is pulled out of the second strap 220. Specifically, in this embodiment, the body 2351 and the key 239 are both provided with a second mating surface a2, the second mating surface a2 is perpendicular to the YOZ plane and forms an acute angle with the XOY plane, and the second mating surface a2 of the body 2351 and the second mating surface a2 of the key 239 are attached to each other. In the process of pressing the button 239 to move the button 239 in the Z-axis direction into the latch 230, the force applied by the button 239 to the body 2351 can be decomposed into a force in the Y-axis direction (i.e. the moving direction of the top block 235 along the guide post 233) and a force in the Z-axis direction (i.e. the moving direction of the button 239), the force in the Y-axis direction can move the top block 235 towards the bottom plate 2313, and can make the projection 2353 come out of the clamping hole 220a of the second strap 220, so that the second strap 220 can be pulled out from the side far from the free end thereof (i.e. the side where the part of the second strap 220 which does not enter the latch 230) to facilitate the user to remove the wearable device 10 from the wrist. Of course, in other embodiments, the sheet-like body 2351 may not be provided with the second engagement surface a2, for example, the end surface of the body 2351 for engaging the key 239 may be curved, and in such embodiments, the key 239 may also urge the top block 235 to move along the guide post 233.

In other embodiments, the provision of the second mating face a2 is not required. For example, the latch 230 may include a slider-crank mechanism, with the button 239 being rotationally coupled to an input end of the slider-crank mechanism and an output end of the slider-crank mechanism being rotationally coupled to the top piece 235. When the user presses the button 239 to move the button 239 in the Z-axis direction into the latch 230, the slider-crank mechanism may translate the movement of the button 239 in the Z-axis direction into the movement of the top block 235 in the Y-axis direction, thereby allowing the top block 235 to move toward the bottom plate 2313 and allowing the projection 2353 to come out of the engagement hole 220a of the second strap 220, so that the second strap 220 can be extracted from the side away from the free end thereof (i.e., the side of the portion of the second strap 220 that does not enter the latch 230). Of course, in other embodiments, other mechanisms may be used in place of the slider-crank mechanism. For example, the button 239 may be provided with a rack, the latch 230 may include a dual gear rotatably connected to the housing 231, the rack of the button 239 is in meshing transmission with one gear of the dual gear, the top block 235 is provided with another rack and in meshing transmission with another gear of the dual gear, and a length direction of the rack of the top block 235 is perpendicular to a length direction of the rack of the button 239. The mechanism also allows the top block 235 to move toward the bottom plate 2313 when the user presses the button 239 to move the button 239 in the Z-axis direction within the latch 230, and allows the projection 2353 to disengage from the catch hole 220a of the second strap 220 to allow the second strap 220 to be withdrawn from the side away from the free end thereof.

Further, referring to fig. 5, the button 239 may include a pressing portion 2391 and a position-limiting portion 2393 that are integrally formed, the position-limiting portion 2393 is accommodated in the cavity 231a of the casing 231, the second engagement surface a2 is disposed on the position-limiting portion 2393, and the pressing portion 2391 is exposed outside the casing 231 and can be pressed by a user. In the present embodiment, the length of the orthogonal projection of the stopper portion 2393 in the X-axis direction is longer than the length of the orthogonal projection of the pressing portion 2391 in the X-axis direction. The size of the hole on the outer frame 2311 for matching with the pressing portion 2391 is matched with the size of the pressing portion 2391, but the limiting portion 2393 can be limited in moving range by the limiting portion 2393, that is, the size of the hole on the outer frame 2311 for matching with the pressing portion 2391 is smaller than the size of the limiting portion 2393, so that the key 239 can be prevented from being separated from the latch 230, and the working reliability of the latch 230 can be improved.

When the buckle 230 is used in the wearable device 10, the strap can be threaded into the mounting hole 230a of the housing 231 and the top block 235 can be driven to move along the guide post 233, and the elastic element 237 can drive the top block 235 to be engaged with the strap, so that the strap can be easily fixed to the buckle 230, thereby improving the convenience of wearing operation. After the strap is engaged with the buckle 230, the user presses the button 239 to move the button 239 along the width direction of the strap, and the button 239 drives the top block 235 to move along the guiding post 233, so that the strap can be pulled out from the buckle 230, thereby facilitating the user to remove the wearable device 10 from the body. The lock catch 230 improves the wearing operation convenience, the guide post 233 can improve the movement stability of the top block 235, and the top block 235 is prevented from being blocked due to deflection in the moving process, so that the working reliability of the lock catch 230 can be improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A latch, comprising:

the guide post is arranged on the shell;

the ejector block is arranged on the shell;

the elastic piece is arranged on the shell; and

the key is arranged on the shell;

2. The latch of claim 1, wherein the top block comprises a body and a projection connected to the body, the body is provided with a through hole, and the guide post is arranged through the through hole; and in the process that the binding band penetrates into the mounting hole, the elastic piece can drive the lug to be clamped with the binding band.

3. A latch according to claim 2, wherein the resilient member is mounted around the post.

4. A shackle as claimed in claim 3, characterised in that there are at least two guide posts, and the guide posts are provided on opposite sides of the projection in the width direction of the strap, and each guide post is provided with an elastic member.

5. A latch according to claim 2, wherein the projection has a first mating surface, the first mating surface is a plane, and the first mating surface and the top block are disposed obliquely along the moving direction of the guide post; in the process that the binding band penetrates into the mounting hole, the binding band presses against the first matching surface, so that the ejector block moves along the guide column.

6. A latch according to claim 5, wherein at least one of the body and the key has a second mating surface, and the top piece is disposed obliquely to the second mating surface along the direction of movement of the guide post; the second matching surface guides the top block to move along the guide post in the process that the key is pressed and moves into the shell, so that the lug is separated from the binding band.

7. A latch according to claim 6, wherein the housing has a cavity in communication with the mounting hole, the guide post, the top block and the resilient member being disposed in the cavity; the key comprises a pressing part and a limiting part which are integrally formed, the limiting part is contained in the cavity, the limiting part is provided with the second matching surface, and the pressing part is exposed outside the shell.

8. A latch as defined in claim 7, wherein the housing includes an outer frame and a base plate covering one end of the outer frame and forming the cavity with the outer frame; the mounting holes are located in the outer frame, the guide posts are connected to the bottom plate, and the keys are arranged on the outer frame.

9. A buckle according to claim 8, wherein said keys are provided on opposite sides of said outer frame in the width direction of said strap.

10. A strap assembly comprising a strap and the latch of any one of claims 1-9, the strap comprising a first strap and a second strap, one end of the first strap being attached to the latch, the second strap being capable of being threaded through the mounting hole and engaging the top block.

11. The strap assembly of claim 10 wherein said strap assembly includes a latch, said latch extending through said first strap and said catch in a direction of a width of said first strap to enable said first strap to rotate relative to said catch.

12. The strap assembly of claim 10 wherein said second strap is provided with a plurality of spaced apart latch apertures, said resilient member urging said top block into said latch apertures to engage said second strap with said catch.

13. A wearable device comprising an electronic device and the strap assembly of any of claims 10-12, wherein an end of the first strap distal from the latch is attached to an end of the electronic device, and wherein an end of the second strap is attached to an opposite end of the electronic device.