阅读说明：本技术 同步组件及折叠手戴式设备 (Synchronization assembly and folding hand-wearing device ) 是由 韦光东 刘明生 刘建军 于 2020-05-15 设计创作，主要内容包括：一种同步组件,包括若干相互转动咬合的铰接基座、第一铰链组、第二铰链组、第三铰链组、阻尼链及轴部件,所述第一铰链组包括若干相互咬合的第一铰接件,所述第二铰链组、第三铰链组包括若干相互铰接的第二、第三铰接件,所述阻尼链包括若干首尾衔接的阻尼块,若干所述铰接基座与所述第一铰链组将所述第二、第三铰链组夹持于内并通过所述轴部件对应地将所述铰接基座、第二或第三铰接件、第一铰接件及阻尼块串接在一起,所述铰接基座之间、第一铰接件之间、第二铰接件之间及第三铰接件之间依照设定的轨迹转动弯曲,所述阻尼链提供转动过程中的阻尼力。本申请还包括一种折叠手戴式设备,具有可折叠、屏幕大的优点。(A synchronous component comprises a plurality of hinged bases, a first hinge group, a second hinge group, a third hinge group, a damping chain and a shaft component, wherein the hinged bases are mutually rotatably meshed, the first hinge group comprises a plurality of first hinged pieces which are mutually meshed, the second hinge group and the third hinge group comprise a plurality of second hinged pieces and third hinged pieces which are mutually hinged, the damping chain comprises a plurality of damping blocks which are connected end to end, the hinged bases and the first hinge group clamp the second hinged pieces and the third hinged pieces and correspondingly connect the hinged bases, the second hinged pieces or the third hinged pieces, the first hinged pieces and the damping blocks in series, the hinged bases, the first hinged pieces, the second hinged pieces and the third hinged pieces are rotatably bent according to a set track, and the damping chain provides damping force in the rotating process. The application also comprises a folding hand-wearing type device which has the advantages of being foldable and large in screen.)

1. A synchronous component is characterized by comprising a plurality of hinged bases which are mutually rotated and meshed, a first hinge group, a second hinge group, a third hinge group, a damping chain and a shaft component, the first hinge group comprises a plurality of first hinge parts which are mutually meshed, the second hinge group and the third hinge group comprise a plurality of second hinge parts and third hinge parts which are mutually hinged, the damping chain comprises a plurality of damping blocks which are connected end to end, the second hinge group and the third hinge group are clamped by the hinge bases and the first hinge group, and the hinge bases, the second hinge parts or the third hinge parts, the first hinge parts and the damping blocks are correspondingly connected in series through the shaft parts, the damping chain provides damping force in the rotating process.

2. The synchronizing assembly according to claim 1, wherein the hinge base and the first hinge member are serially connected through the shaft member in a one-to-one correspondence, and the second and third hinge members are alternately serially connected in a staggered correspondence with the hinge base and the first hinge member, i.e., the hinge base and the first hinge member are serially connected through the shaft member to one of the second and third hinge members in a one-to-one correspondence.

3. The synchronizing assembly according to claim 2, wherein the hinge bases include a base portion, a fixing portion formed on one lateral side of the base portion, a locking strip extending from a bottom of the base portion in a lateral direction, and a shaft hole extending through the base portion in a lateral direction, a locking block is formed on a first longitudinal side of the base portion in a protruding manner, a locking groove opened toward a second longitudinal side is formed on an inner side of the base portion, and a plurality of locking blocks and locking grooves of the hinge bases are locked with each other and rotate along a track of the locking groove.

4. A synchronizing assembly according to claim 3, wherein the engaging groove includes a narrower opening portion formed at a second longitudinal side of the base portion and a wide groove portion extending upward from the opening portion in an arc-shaped groove structure, the wide groove portion having a width greater than that of the opening portion, the engaging block includes an arc-shaped strip and a holding head portion formed at a free end of the arc-shaped strip, the holding head portion having a width greater than that of the opening portion, the holding head portion having a length less than that of the wide groove portion, and the arc-shaped strip having a length greater than that of the opening portion.

5. The synchronizing assembly according to claim 4, wherein the engagement blocks of one of the hinged bases are engaged into the engagement slots of the other hinged base from a lateral side during assembly, and the engagement blocks are rotatable within the engagement slots; the first articulated elements comprise a first main body part, a first clamping groove formed at the bottom of the first main body part, a shaft hole transversely penetrating through the first main body part, an occlusion block which is arranged on the first main body part and has an opening facing the longitudinal first side of the first main body part and protrudes from the longitudinal second side of the first main body part, and the occlusion groove and the occlusion block of the first articulated elements are consistent with the occlusion groove and the occlusion block of the articulated base in structure.

6. The synchronizing assembly according to claim 5, wherein each of the second and third hinges comprises a second main body, a second engaging groove formed at a bottom of the second main body, a shaft hole transversely penetrating the second main body, a hinge groove formed at a first longitudinal side of the second main body, and a hinge block protruding from a second longitudinal side of the second main body, wherein the second hinges are hinged to the hinge groove by the hinge block to form a second hinge group, and the third hinges are hinged to the hinge groove by the hinge block to form a third hinge group.

7. The synchronizing assembly according to claim 6, characterized in that the length of the second and third articulations is greater than the length of the articulation bases and the first articulations, in particular the number of articulation bases is the same as the number of first articulations of the first hinge group, the sum of the numbers of second and third articulations of the second and third hinge groups is equal to the number of first articulations, the number of damping masses of the damping chain being one less than the number of articulation bases.

8. The synchronizing assembly according to claim 7, wherein one of the shaft members passes through the axial holes of one of the hinge base, the second or third hinge member, the first hinge member and the damping block to be connected and fixed together, the locking strip of the hinge base is locked into the first and second locking grooves of the first hinge member, the second or third hinge member to be limited, the engaging groove and the engaging block of the hinge base and the first hinge member are oppositely arranged in the longitudinal direction, and the engaging groove and the hinge block of the second or third hinge member are oppositely arranged in the longitudinal direction.

9. The synchronizing assembly according to claim 8, wherein the damping block includes a bar, a shaft hole disposed on a first longitudinal side of the bar, and a damping groove disposed on a second longitudinal side of the bar, the damping groove includes a first position groove, a second position groove, a damping protrusion disposed between the first and second position grooves, and a notch disposed on the bar to open the second position groove, and the damping protrusion communicates the first and second position grooves.

10. The synchronizing assembly according to claim 9, wherein the damping blocks are stacked and combined by a plurality of damping plates, the shaft hole of a first damping block and the second position groove of a second damping block are stacked and fixed on the shaft member, the second position groove is a position of the synchronizing assembly in a spread state, and when the synchronizing assembly rotates, the shaft member enters the first position groove from the second position groove along the space between the damping protrusions.

11. A folding hand-wearing apparatus comprising the synchronizing assembly according to any one of claims 1 to 10, a plurality of foldable housings, a plurality of foldable covers, and a flexible screen attached to an upper surface of the housings, wherein the synchronizing assembly articulates the housings, the covers are fixed to the housings in a one-to-one correspondence and define an assembly space therebetween, the housings comprise a first housing, a plurality of second housings articulated to both longitudinal sides of the first housing, and a third housing articulated to an outermost side of the second housings, each housing comprises a plate body formed by extending in a transverse direction and side walls formed integrally at both transverse ends of the plate body, the third housing further comprises an end wall formed integrally at the outer longitudinal side, the side walls and the end walls define the assembly space with the covers under the plate body, the side walls and the top of the end wall are upwards protruded to form flanges, and a mounting space for mounting the flexible screen is formed between the flanges.

Technical Field

The application relates to the field of mobile devices, in particular to a synchronizing assembly and a folding hand-wearing device.

Background

The intelligent bracelet is widely used in daily life of people and is used for being connected with a smart phone to monitor health indexes and the like. The general casing of current intelligent wrist-watch or intelligent bracelet, assemble in screen subassembly and electronic components on the casing and connect in a pair of watchband of casing both sides, watchband structure is various, has cortex material, hinge etc.. Because of the size that intelligent bracelet is limited by human hand, the screen is very little, and along with the rise of flexible screen, begin to try on the market with flexible screen equipment to intelligent wrist-watch or intelligent bracelet on the whole length of expanding, promptly the watchband part also assembles the screen as a part of casing. However, the watch band portion is required to assemble the screen with care taken to protect the flexible screen when folded and bent.

Disclosure of Invention

In view of this, it is necessary to provide a synchronization assembly and a foldable handheld device, so that the flexible screen is applied to the industrialization of the foldable handheld device by designing a smaller synchronization assembly.

In order to solve the above technical problem, the present application provides a synchronizing assembly, which comprises a plurality of hinged bases rotatably engaged with each other, a first hinge set, a second hinge set, a third hinge set, a damping chain and a shaft component, the first hinge group comprises a plurality of first hinge parts which are mutually meshed, the second hinge group and the third hinge group comprise a plurality of second hinge parts and third hinge parts which are mutually hinged, the damping chain comprises a plurality of damping blocks which are connected end to end, the second hinge group and the third hinge group are clamped by the hinge bases and the first hinge group, and the hinge bases, the second hinge parts or the third hinge parts, the first hinge parts and the damping blocks are correspondingly connected in series through the shaft parts, the damping chain provides damping force in the rotating process.

Preferably, the hinge base and the first hinge are connected in series through the shaft member in one-to-one correspondence, and the second hinge member and the third hinge member are staggered and connected in series in correspondence with the hinge base and the first hinge member in sequence, that is, the hinge base and the first hinge member are connected in series with one of the second hinge member and the third hinge member through the shaft member only in correspondence.

Preferably, the hinge base comprises a base portion, a fixing portion formed on one lateral side of the base portion, a locking strip formed by extending from the bottom of the base portion in the lateral direction, and a shaft hole transversely penetrating through the base portion, a biting block is formed by protruding the longitudinal first side of the base portion, a biting groove with an opening facing the longitudinal second side is formed on the inner side of the base portion, and the biting blocks and the biting groove of the plurality of hinge bases are mutually engaged and rotate along the track of the biting groove.

Preferably, the engaging groove includes a narrow opening portion formed at a second longitudinal side of the base portion and a wide groove portion extending upward from the opening portion in an arc-shaped groove structure, the wide groove portion has a width larger than that of the opening portion, the engaging block includes an arc-shaped strip and a holding head portion formed at a free end of the arc-shaped strip, the holding head portion has a width larger than that of the opening portion, the holding head portion has a length smaller than that of the wide groove portion, and the arc-shaped strip has a length larger than that of the opening portion.

Preferably, when the hinge base is assembled, the engagement block of one hinge base is clamped into the engagement groove of the other hinge base from one lateral side, and the engagement block can rotate in the engagement groove; the first articulated elements comprise a first main body part, a first clamping groove formed at the bottom of the first main body part, a shaft hole transversely penetrating through the first main body part, an occlusion block which is arranged on the first main body part and has an opening facing the longitudinal first side of the first main body part and protrudes from the longitudinal second side of the first main body part, and the occlusion groove and the occlusion block of the first articulated elements are consistent with the occlusion groove and the occlusion block of the articulated base in structure.

Preferably, each of the second and third hinge members includes a second main body portion, a second slot disposed at the bottom of the second main body portion, a shaft hole transversely penetrating through the second main body portion, a hinge groove disposed at a first longitudinal side of the second main body portion, and a hinge block protruding from a second longitudinal side of the second main body portion, the second hinge members are hinged to the hinge groove through the hinge blocks to form a second hinge group, and the third hinge members are hinged to the hinge grooves through the hinge blocks to form a third hinge group.

Preferably, the lengths of the second and third hinges are greater than the lengths of the hinge base and the first hinge, specifically, the number of the hinge bases is the same as the number of the first hinges of the first hinge group, the sum of the numbers of the second and third hinges of the second and third hinge groups is equal to the number of the first hinges, and the number of the damping blocks of the damping chain is one less than the number of the hinge bases.

Preferably, one the shaft part passes through the shaft hole of a hinged base, second or third hinge joint piece, first hinge joint piece and damping piece and fixes as an organic whole in order to connect, the screens strip card of hinged base is gone into spacing in the first draw-in groove, the second draw-in groove of first hinge joint piece, second or third hinge joint piece, hinged base with the interlock groove and the interlock piece of first hinge joint piece set up in the longitudinal direction is reverse, the hinge groove and the hinge piece of second, third hinge joint piece set up in the longitudinal direction is reverse.

Preferably, the damping block comprises a bar-shaped body, a shaft hole arranged on a first side of the bar-shaped body in the longitudinal direction, and a damping groove arranged on a second side of the bar-shaped body in the longitudinal direction, the damping groove comprises a first position groove, a second position groove, a damping convex part arranged between the first position groove and the second position groove, and a notch arranged on the bar-shaped body to open the second position groove, and the damping convex part is communicated with the first position groove and the second position groove.

Preferably, the damping blocks are formed by overlapping and combining a plurality of damping sheets, the shaft hole of the first damping block and the second position groove of the second damping block are overlapped together and sleeved in the shaft part to be fixed, the second position groove is a position of the synchronous component in an unfolded state, and when the synchronous component rotates, the shaft part enters the first position groove from the second position groove along the space between the damping convex parts.

In order to solve the technical problem, the application further provides a folding hand-wearing device, which comprises the synchronous component, a plurality of foldable shells, a plurality of foldable covers and a flexible screen attached to the upper surfaces of the shells, wherein the synchronous component hinges the shells together, the covers are fixed on the shells in a one-to-one correspondence manner and form an assembly space between the shells, each shell comprises a first shell, a plurality of second shells hinged to the two longitudinal sides of the first shell and a third shell hinged to the outer side of the outermost second shell, each shell comprises a plate body formed by extending in the transverse direction and side walls integrally formed at the two transverse ends of the plate body, the third shell further comprises an end wall integrally formed at the outer longitudinal side, the side walls and the end wall are arranged below the plate body and form the assembly space with the covers, the side walls and the top of the end wall are upwards protruded to form flanges, and a mounting space for mounting the flexible screen is formed between the flanges.

This application synchronizing assembly overlaps through the hinge group of a plurality of dislocation sets and realizes synchronous folding function together, has changed prior art and has need adopt at least three gears to carry out the product size that leads to the fact in step too big, can not be applicable to the problem on the less electronic product such as intelligent bracelet.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a perspective view of a folded hand-worn device of the present application in a mid-deployment state;

FIG. 2 is a perspective view of the housing of the present application;

FIG. 3 is a perspective view of the housing and synchronizing assembly therein of the present application;

FIG. 4 is a perspective view of the cover of the present application;

FIG. 5 is a perspective view of another angle of the cover of the present application and a partially enlarged view thereof;

FIG. 6 is a perspective view of a second cover of the present application;

FIG. 7 is a perspective view of a first housing of the present application;

FIG. 8 is a perspective view of a second housing of the present application;

FIG. 9 is a combination view of a second housing and a second cover according to the present application;

FIG. 10 is a perspective view of the folding hand worn device of the present application in a folded state;

fig. 11 is a perspective view of the cover body of the present application in a folded state between a first cover body and a plurality of second cover bodies;

FIG. 12 is a perspective view of several second housings of the present application in a folded state;

FIG. 13 is a perspective view of the synchronizing assembly of the present application in an expanded state;

FIG. 14 is a perspective view of another angle of the synchronizing assembly of the present application;

FIG. 15 is a perspective view of the synchronizing assembly of the present application in a folded condition;

FIG. 16 is a perspective view of the hinge base of the synchronizing assembly of the present application;

FIG. 17 is a front view of several of the hinged seats of the synchronizing assembly of the present application in an expanded condition;

fig. 18 is a perspective view of a plurality of sets of bite blocks of the synchronizing assembly of the present application in an expanded state;

fig. 19 is a perspective view of a first bite block of the synchronizing assembly of the present application;

FIG. 20 is a perspective view of second and third hinge groups of the synchronizing assembly of the present application;

FIG. 21 is a perspective view of a damping mechanism of the synchronizing assembly of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments.

In the present application, the X direction shown in fig. 1 is the front in the front-rear direction (longitudinal direction), the Y direction is the right in the left-right direction (lateral direction), and the Z direction is the upper in the up-down direction (vertical direction).

Referring to fig. 1 to 4, the foldable hand-worn device of the present application includes a foldable housing 10, a cover 20 assembled on the housing 10, a synchronization component 30 for controlling the housing 10 to be folded synchronously, an electronic component (not shown) assembled in an assembly space 40 defined by the housing 10 and the cover 20, and a flexible screen (not shown) attached to an upper surface of the housing 10.

Referring to fig. 4 to 6 and 11, the cover 20 includes a first cover 20a, a plurality of second covers 20b located at two longitudinal sides of the first cover 20a, and a third cover 20c located outside the outermost second cover 20 b. The first cover 20a, the second cover 20b and the third cover 20c each include a cover plate 21 and a fixing base 22 formed by protruding upward from the cover plate 21. The upper surface of the cover plate 21 at least includes a horizontal surface 211 formed to extend in a lateral direction, and the fixing seat 22 is formed to protrude upward from the horizontal surface 211. The fixing base 22 includes an extending portion 221, a fixing portion 222 extending upward from the top of the extending portion 221, a screw hole 224 formed on the top surface of the fixing portion 222, and a positioning post 223 protruding upward from the top surface of the fixing portion 222. The fixing portion 222 has a longitudinal width greater than that of the extending portion 221, and an avoidance space 225 is formed between the fixing portion 222 and the upper surface of the cover plate 21.

The first cover 20a further includes first arc portions 23 respectively disposed on the upper surfaces of the two longitudinal sides of the cover plate 21, two pairs of the fixing bases 22 are formed on the upper surface of the first cover plate 20a in an upward extending manner in the transverse direction, and the fixing portions 222 of the two pairs of the fixing bases 22 are oppositely and oppositely disposed. The first cover 20a has a longitudinal width greater than the second and third cover plates 20b, 20c, and the first cover 20a has a transverse width equal to that of the second and third cover plates 20b, 20 c.

The lower surface of the second cover plate 20b facing the first cover plate 20a is provided with a second arc portion 24 matching with the first arc portion 23, and the upper surface of the second cover plate 20b facing away from the first cover plate 20a is provided with the first arc portion 23. The lower surface of the third cover plate 20c on the side close to the second cover plate 20b is provided with a second arc surface portion 24. The first arc surface portion 23 is a concave arc surface, and the second arc surface portion 24 is a convex arc surface.

When the lid body 20 is unfolded, the edge of the second arc portion 24 overlaps the edge of the first arc portion 23. In the folded state, the second arc surface portion 24 is completely received in the first arc surface portion 23, and the lid body 20 is in the bent folded state.

As shown in fig. 1 to 3, 7 to 9, and 12, the housing 10 includes a first housing 10a, a plurality of second housings 10b located at two longitudinal sides of the first housing 10a, and a pair of third housings 10c located at outer sides of the second housings 10 b. The first casing 10a, the second casing 10b and the third casing 10c each include a plate body 11, side walls 12 integrally formed at both lateral ends of the plate body 11, and two rows of fixing strips 13 disposed on the bottom surface of the plate body 11. The upper surface of the plate body 11 is a horizontal surface, end walls 15 are integrally formed at two longitudinal ends of the third casing 10c, the side walls 12 and the end walls 15 include flanges 127 and 151 protruding upwards, and the flanges 127 and 151 of the first, second and third casings 10a,10b and 10c enclose a mounting space 50 for attaching a flexible screen. The side walls 12 and the end walls 15 enclose the assembly space 40 for assembling electronic components below the board body 11. Two sets of fixing holes 131, 132 are arranged in the transverse direction of each row of the fixing strip 13.

The side wall 12 of the first casing 10a has accommodating grooves 121 and key holes 19 penetrating the side wall 12 in the transverse direction respectively at two longitudinal sides. The longitudinal two ends of the plate body 11 are also provided with avoidance gaps 14, the avoidance gaps 14 are communicated with the mounting space 50 and the assembling space 40, and signals in the assembling space 40 are transmitted to the flexible screen in the mounting space 50 through cables.

The side wall 12 of the second casing 10b is formed with a matching protrusion 122 matching with the receiving slot 121 in a protruding manner on a side facing the first casing 10a, and the receiving slot 121 is opened on a side of the side wall 12 of the second casing 10b away from the first casing 10 a. The side wall 12 of the third housing 10c is formed with a fitting projection 122 that fits the receiving groove 121 in a protruding manner on the side toward the second housing 10 b.

The lateral outer surface of the side wall 12 of the second housing 10b is formed with an outward protrusion 123 protruding in the lateral direction with respect to the fitting projection 122, and the receiving groove 121 is located inside the outward protrusion 123. The accommodating groove 121 and the fitting protrusion 122 are both narrow-top and wide-bottom structures, and the outer protrusion 123 is narrow-top and wide-bottom structure. The accommodating groove 121 and the matching convex portion 122 are both of matched arc-surface structures, specifically, the accommodating groove 121 is of a concave arc-surface structure, and the matching convex portion 122 is of a convex arc-surface structure. When completely mated, the mating protrusion 122 is completely received in the receiving groove 121.

Referring to fig. 1 to 12, the cover 20 and the housing 10 are in a one-to-one correspondence relationship, the first, second and third covers 20a, 20b and 20c are respectively in one-to-one correspondence with the first, second and third housings 10a,10b and 10c, and the number of the second covers 20b and the second housings 10b is determined according to the product length and other factors.

The cover 20 covers the lower portion of the housing 10 and closes the lower portion of the assembly space 40. The fixing seat 22 of the cover 20 is connected to the fixing strip 13 of the housing 10 by screws, specifically, the fixing seat 22 is positioned on a set of fixing holes 132 of the fixing strip 13, and is screwed into a screw hole 224 on the bottom surface of the fixing seat 22 from the bottom of the cover 20 by screws, meanwhile, the fixing hole 132 further includes a through screw hole and a positioning hole matched and positioned with the positioning column 223, and the cover 20 is first positioned on the fixing strip 13 and then is fixed to the cover 20 and the housing 10 by screws.

When the cover is assembled and unfolded, the bottom end edge of the second arc portion 24 of the second cover 20b of the cover 20 is overlapped with the upper end edge of the first arc portion 23 of the first cover 20a, the bottom end edge of the second arc portion 24 of the second cover 20b is overlapped with the upper end edge of the first arc portion 23 of the second cover 20b, and so on, and the plurality of second covers 20b are linked together. When the folding hand-wearing device is folded and closed, the second cambered surface part 24 is completely matched below the first cambered surface part 23, so that folding and bending are realized.

The second housings 10b of the housings 10 are respectively located at two longitudinal sides of the first housing 10a, the engaging protrusion 122 at one longitudinal side of the second housing 10b is engaged with the receiving slot 121 of the first housing 10a, the receiving slot 121 at the other side opposite to the engaging protrusion 122 of the second housing 10b is engaged with the engaging protrusion 122 of the other second housing 10b, and so on, the plurality of second housings 10b are linked and engaged, and the engaging protrusion 122 of the third housing 10c is engaged with the receiving slot 121 of the outermost second housing 10 b. In the unfolded state, the end edges of the engaging protrusions 122 are located in the receiving grooves 121, and a gap is formed between the lower portions of the outer protrusions 123. In the closed state, the fitting protrusions 122 are completely received in the receiving grooves 121, and the outer protrusions 123 are attached to each other, so that the outer protrusions 123 are bent and folded downward due to the wide-top and narrow-bottom structure.

In practical implementation, the first, second and third housings 10a,10b and 10c of the housing 10 are linked together by the synchronizing assembly 30, and the synchronizing assembly 30 is fixed to a fixing hole 131 of the fixing strip 13. Meanwhile, the cover 20 is fixedly connected to the fixing strip 13 of the housing 10 through the fixing seat 22.

In an embodiment, the longitudinal sides of the sidewall 12 of the first housing 10a may be provided with the engaging protrusions 122, the corresponding receiving slots 121 of the second housing 10b are arranged in an alternating manner with the engaging protrusions 122, and the engaging protrusions 122 of the second housing 10c are replaced with the receiving slots 121.

In one embodiment, the two longitudinal sides of the first cover 20a are provided with second arc surface portions 24 of a convex arc surface structure, the first and second arc surface portions 23, 24 on the two longitudinal sides of the second cover 20b are arranged alternately, and the second arc surface portion 24 of the third cover 20c is replaced by the first arc surface portion 23.

Referring to fig. 13 to 21, the synchronizing assembly 30 includes a plurality of hinge bases 31, a first hinge set 32, a second hinge set 33, a third hinge set 34, a plurality of damping chains 35, and a shaft member 36 for combining the hinge bases 31, the first hinge set 32, the second hinge set 33, the third hinge set 34 and the damping chains 35.

Each hinge base 31 includes a base portion 311, a fixing portion 312 integrally formed on a first lateral side of the base portion 311, a locking strip 314 formed to protrude from a bottom of a second lateral side of the base portion 311, a screw hole (not numbered) passing through the fixing portion 312 in an up-down direction, a positioning post 313 formed to protrude downward from a bottom of the fixing portion 312, a snap groove 316 opened on the second lateral side of the base portion 311, a snap block 317 formed to protrude from a first longitudinal side of the base portion 311, and a shaft hole 315 passing through the base portion 311 in a lateral direction.

The engaging groove 316 includes a narrow opening 3162 formed on the second longitudinal side of the base portion 311 and a wide groove 3161 extending upward from the opening 3162 in an arc shape. The wide groove portion 3161 is formed to extend in an arc-shaped upward direction from the opening portion 3162, and the width of the wide groove portion 3161 is greater than the width of the opening portion 3162. The biting block 317 comprises an arc-shaped strip 3171 and a holding head 3172 formed at the free end of the arc-shaped strip 3171, wherein the width of the holding head 3172 is larger than that of the opening 3162, and the length of the holding head 3172 is smaller than that of the wide groove 3161. The length of the arc-shaped strip 3171 is greater than the length of the opening 3162. When assembled, the engagement block 317 of one of the hinge bases 31 is snapped into the engagement slot 316 of the other hinge base 31 from a lateral side, and the engagement block 317 is rotatable within the engagement slot 316. By analogy, the plurality of hinge bases 31 are hinged together to form a chain, when the plurality of hinge bases 31 are in the unfolded state, the holding head 3172 of the engaging block 317 is positioned in the wide groove 3161 and limited on the opening 3162, and the arc-shaped strip 317 is at least partially exposed out of the engaging groove 316; in the folded and bent state, the retaining head 3172 extends into the wide groove 3161, the arc-shaped bar 317 is completely received in the opening 3162, and the arc-shaped bar 317 at least partially enters the wide groove 3161.

The first hinge assembly 32 includes a plurality of first hinge elements, each of which includes a first main body 321, a first engaging groove 324 formed at the bottom of the first main body 321, a shaft hole 325 transversely penetrating the first main body 321, an engaging groove 322 opened on the first main body 321 and having an opening facing a first longitudinal side of the first main body 321, and an engaging block 323 protruding from a second longitudinal side of the first main body 321. The engagement slots 322 and the engagement blocks 323 of the first hinge member are identical to the engagement slots 316 and the engagement blocks 317 of the hinge base 31, and thus, the detailed description thereof is omitted.

The second hinge group 33 includes a plurality of second hinge members, each of which includes a second main body 331, a second locking slot 332 disposed at the bottom of the second main body 331, a shaft hole 335 transversely penetrating the second main body 331, a hinge slot 333 disposed at a first longitudinal side of the second main body 331, and a hinge block 334 formed by protruding from a second longitudinal side of the second main body 331. A plurality of the second hinge members are hinged to the hinge grooves 333 by hinge blocks 334 on one side to form a chain structure.

The third hinge group 34 includes a plurality of third hinges, and the third hinges are completely identical to the second hinges of the second hinge group 33, and will not be described herein again.

The damping chain 35 comprises a plurality of damping blocks, and each damping block comprises a bar 351, a shaft hole 352 arranged on a first side of the bar 351 in the longitudinal direction, and a damping groove 353 arranged on a second side of the bar 351 in the longitudinal direction. The damping groove 353 includes a first position groove 354, a second position groove 355, a damping protrusion 356 between the first and second position grooves 354, 355, and a notch 357 opened in the bar 351 to open the second position groove 355. The damping protrusions 356 communicate with the first and second position grooves 354 and 355. The damping block is formed by overlapping and combining a plurality of damping sheets.

The synchronizing assembly 30 combines a set of hinge base 31, a first hinge set 32, a second hinge set 33, a third hinge set 34 and a damping chain 35 together through a plurality of shaft members 36. The damping chain 35 is formed by connecting a plurality of damping blocks end to end, and the lengths of the second hinge member and the third hinge member are greater than the lengths of the hinge base 31 and the first hinge member.

Specifically, the number of the hinge bases 31 is the same as the number of the first hinges of the first hinge group 32. And the sum of the numbers of the second and third hinges of the second and third hinge groups 33, 34 is equal to the number of the first hinges, and the number of the damping blocks of the damping chain 35 is one less than the number of the hinge bases 31.

During assembly, the engagement blocks 317 and the engagement grooves 316 of the plurality of hinge bases 31 are mutually connected to form a combined chain of the hinge bases 31, and the engagement blocks 323 and the engagement grooves 322 of the plurality of first hinge pieces are mutually engaged to form the first hinge group 32; hinging the hinging blocks 334 of the second hinging pieces with the hinging slots 333 to form the second hinge group 33; the hinge blocks 334 of the plurality of third hinges are hinged to the hinge grooves 333 to form the third hinge group 33. The combined chain of the hinge base 31 and the first, second and third hinge groups 32, 33, 34 are stacked together, and the combined chain of the hinge base 31 and the second hinge group 32 sandwich the second and third hinge groups 33, 34 therebetween. One of the hinge bases 31 corresponds to a first hinge member and a second or third hinge member, i.e., the second and third hinge members are staggered and correspond to a first hinge member and a hinge base 31. The locking strip 314 of the hinge base 31 is engaged with the first locking groove 324 of the first hinge member and the second locking groove 332 of the second hinge member or the third hinge member, so as to limit the position relationship therebetween. Then, the shaft part 36 passes through the shaft holes 315, 325, 335 of the hinged base 31, the first, the second, and the third hinged members, and finally the damping chain 35 is sleeved in the end of the shaft part 36 and locked by a nut, wherein the first position groove 355 of the damping groove 353 of the first damping block is sleeved in the free end of the first shaft part 36 to be locked, then the shaft hole 352 of the first damping block and the first position groove 355 of the second damping block are overlapped and sleeved in the free end of the second shaft part 36 to be locked, and so on, the damping blocks are connected end to form the damping chain 35, the shaft hole 355 of the last damping block is sleeved in the last shaft part 36 to be locked, and the problem that the two rows of damping blocks in the longitudinal direction are kept flat by adjusting in a manner of a gasket when the two damping blocks in the end to end in the transverse direction are uneven.

The base portion 311 of the hinge base 31 and the first main body portion 321 of the first hinge group 32 are both wide in top and narrow in bottom, and have a substantially trapezoidal structure. In the initial state, the base portions 311 are spaced from each other, and the shaft member 36 is positioned in the first position groove 355 of the damper block; when the folding is performed, the plurality of hinge bases 31 and the plurality of engagement blocks 317, 323 of the first hinge members penetrate into the engagement grooves 316, 322, so that the longitudinal inclined sides of the base portion 311 of the hinge base 31 are attached to each other to be bent, and the first hinge group 32 is also bent; the hinge block 334 of the second and third hinge groups 33, 34 is inserted into the hinge groove 333; and the shaft member 36 moves from the first position groove 355 to the second position groove 354 of the damping piece, and after the shaft member 36 moves from the first position groove 355 to the second position groove 354 by applying a damping force to the shaft member 36 through the damping protrusion 35, an overlapping distance between the two damping pieces is increased, thereby implementing folding and applying a damping force to the shaft member 36 to make the damping force in the second position groove 354.

The hinge bases 31 and the engagement grooves 316 and 322 of the first hinge set 32 are oppositely arranged; the hinge slots 333 of the second and third hinge sets 33, 34 are oppositely arranged, and the engagement slots 316, 322 of the hinge base 31 and the first hinge set 32 are matched with the engagement blocks 317, 323; the hinge slots 333 of the second and third hinge groups 33, 34 cooperate with the hinge blocks 334 to form a plurality of offset track slots for controlling the synchronous folding of the synchronizing assembly 30, and a second or third hinge is offset and corresponds to each hinge base 31 to enable synchronous folding.

The first shell 10a of the shell 10 of the folding hand-wearing device is longitudinally and laterally connected with a plurality of second shells 10b, and the longitudinal outer sides of the two second shells 10b at the longitudinal two sides are connected with a third shell 10 c; the second and third housings 10b,10c on both sides of the longitudinal direction are respectively linked into a whole by two pairs of synchronizing assemblies 30, the synchronizing assemblies 30 are correspondingly fixed by the fixing portions 312 of the hinge bases 31 and the fixing holes 132 on the fixing strips 13 on the bottom surface of the housing 10, the hinge bases 31 are respectively fixed at both longitudinal ends of the first housing 10a, and the synchronizing assemblies 30 do not pass through the first housing 10a in the longitudinal direction, so that the first housing 10a has more width and lower space.

The housing 10 and the cover 20 are fixed in a one-to-one correspondence manner, the cover 20 includes a fixing seat 22 fixed to the first housing 10a, and the fixing seat 22 extends upward and is fixed in a fixing hole 131 of the fixing strip 13, so that the cover 20 is linked into a whole by the synchronizing assembly 30 through the housing 10.

The housing 10 of the present application can also be used in other fields, and only a plurality of the housings 10 are linked together by a simple hinge, for example, the synchronizing assembly 40 is replaced by a simple hinge; similarly, a plurality of the covers 20 can be directly connected to one body by a simple hinge and can be applied to other fields.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.