TWM545173U - A folio type hinge with hidden torque structure - Google Patents

Description

Concealed split hinge (2)

This creation is about a hinge, especially a multi-axis hidden folio of an electronic device.

Conventional folding electronic devices, such as the display and the base of a notebook computer, are mainly connected to the side of the display and the base through a single-hinge hinge to form a pivot, so that the display can be flipped or closed relative to the base.

As shown in the patent of the "New Link Device and Electronic Device Holder Using the Link Device", No. M529774 of Taiwan, it can be pivoted by one of the first link and the second link. Actuated to achieve the above-mentioned lifting and closing purposes, and can be used when the above-mentioned folding electronic device or an integrated electronic device such as a tablet computer is used, the stand supporting the display can be flipped up or closed, and It will not be exposed when closed. In addition, as shown in the "Electronic Device and Hinge" patent of CN102606616A of the People's Republic of China, the effect of the above-mentioned lifting, closing and concealing can also be achieved by the action of the two arms of the coaxial pivoting.

However, whether it is the "link device and the electronic device bracket using the link device" patent or the structure disclosed in the "electronic device and hinge" patent case, it is necessary to generate sufficient torque through the external torque module to Support is formed during the lifting or closing action. In this way, in order to install a plurality of elastic modules composed of shrapnels, washers and nuts, if the structural design is not obtrusive or even concealed, it is necessary to preset enough accommodating space for adding or accommodating the The torque module, but will also make the overall volume larger, not only is not conducive to the overall design, and does not meet the market demand for the overall volume gradually towards light and thin.

In view of this, in order to provide a structure different from the conventional technology and to improve the above-mentioned shortcomings, the creator has accumulated many years of experience and continuous research and development improvements, and this creation has not been produced.

One of the purposes of this creation is to provide a hidden split hinge that can solve the problem of complicated structure of the conventional technology and large overall size, which is not conducive to the overall design, and can effectively simplify the components to reduce the cost and reduce the overall volume for the design. And to achieve the overall volume of light, thin market demand to promote sales.

For the purpose of the above creation, the hidden split hinge provided by the present invention comprises a first body, a second body, a first link set and a second link set. The first body includes two first rails and two first pivoting portions. The first body has a first opening. The second body includes two second rails and two second pivoting portions. The body has a second opening portion; the first link group is located in the first opening portion and the second opening portion, the first link group includes at least one first link, and the first link has a first connecting portion and a first extending portion extending from an end of the first connecting portion at an angle, the first connecting portion and the bent portion of the first extending portion form a first intermediate portion, and the other end of the first connecting portion has a first torque The unit, at least one first torsion unit of the at least one first link is simultaneously sleeved with a first guiding member for forming a frictional torque; the two ends of the first guiding member are respectively limited to be movable relative to the first body Located on the two first rails; at least one first extension of the at least one first link is pivotally connected to the second pivoting portion. The second link set is located in the first opening portion and the second opening portion, the second link set includes at least one second link, and the second link has a second connecting portion and the second connecting portion One end extends at an angle to the second extension portion, and the second connection portion and the second extension portion form a second intermediate portion, and a shaft rod coaxially passes through the first intermediate portion and the second intermediate portion to pivot at least a first connecting rod and at least one second connecting rod; the other end of the second connecting portion has a second torsion unit, and at least one second torsion unit of the at least one second connecting rod simultaneously sleeves a second guiding member, Providing a frictional torsion; the two ends of the second guiding member are respectively respectively arranged on the two second rails in a manner of being translatable relative to the second body; at least one second extending portion of the at least one second connecting rod is pivotally connected to the first Pivot.

In implementation, a first step is formed at the first body of the first opening portion, and a second step is formed at the second body of the second opening portion.

The first body includes a first body, a first left side plate and a first right side plate, and the two first rails and the two first pivoting portions are respectively formed on the board surface of the first left side panel and the first right side panel. The first opening is formed between the first left side plate and the first right side plate.

In implementation, the first left side plate, the first seat body and the first right side plate are simultaneously passed through at least one rivet to be integrally joined. At least one first left positioning hole may be disposed on the surface of the first left side plate, and at least one first right positioning hole is disposed on the surface of the first right side plate, and the left and right sides of the first seat body respectively The at least one first protruding post is disposed to respectively pass through the at least one first left positioning hole and the at least one first right positioning hole to connect the first left side plate, the first seat body and the first right side plate.

The second body includes a second body, a second left side plate and a second right side plate. The two second tracks and the second second pivoting portions are respectively formed on the second left side plate and the second right side plate. The second opening portion is formed between the second left side plate and the second right side plate.

In implementation, the second left side plate, the second seat body and the second right side plate are simultaneously passed through at least one rivet to be integrally joined. At least one second left positioning hole may be disposed on the surface of the second left side plate, and at least one second right positioning hole is disposed on the surface of the second right side plate, and the left and right sides of the second seat body respectively The at least one second protrusion is disposed to respectively pass through the at least one second left positioning hole and the at least one second right positioning hole to connect the second left side plate, the second seat body and the second right side plate.

In implementation, the first torsion unit includes two corresponding first arcuate arms for forming a first shaft hole, and a first radial opening is formed between the corresponding ends of the two first arcuate arms, first The radial opening is in communication with the first shaft bore. The second torsion unit includes two corresponding second arcuate arms for forming a second shaft hole, and a second radial opening between the opposite ends of the two second arcuate arms, the second radial direction The opening is in communication with the second shaft hole.

In practice, the first torsion unit may further include a closed first annular piece and a first space, and the inner circumference of the first annular piece is provided with at least one first groove, and at least one first groove is away from The axial direction of the first annular piece is radially recessed, and the first space is formed on the outer circumference of the first annular piece for accommodating the deformation amount of the first annular piece. The second torsion unit may further include a closed second annular piece and a second space. The inner circumference of the second annular piece is provided with at least one second groove, and the at least one second groove is away from the axis of the second annular piece. The core direction is radially recessed, and the second space is formed on the outer circumference of the second annular sheet for accommodating the amount of deformation of the second annular sheet.

In implementation, the first link set includes a plurality of first links, the second link set includes a plurality of second links, and the plurality of first links and the plurality of second links are arranged in an interleaved manner . The two ends of the first guiding member respectively have two parallel parallel faces which are respectively arranged on the two first rails and can be translated relative to the first body; the two ends of the second guiding member respectively have Two mutually parallel second parallel faces are respectively defined on the two second tracks and are translatable relative to the second body.

In practice, the first guiding member has at least one first ring for positioning a plurality of first torsion units of the plurality of first links; the second guiding member has at least one second ring for positioning the plurality of a plurality of second torsion units of the two links.

In order to facilitate a deeper understanding of this creation, it is detailed later:

The present hidden concealed hinge system includes a first body, a second body, a first link set, and a second link set. The first body includes two first rails and two first pivoting portions. The first body has a first opening. The second body includes two second rails and two second pivoting portions. The body has a second opening portion; the first link group is located in the first opening portion and the second opening portion, the first link group includes at least one first link, and the first link has a first connecting portion and a first extending portion extending from an end of the first connecting portion at an angle, the first connecting portion and the bent portion of the first extending portion form a first intermediate portion, and the other end of the first connecting portion has a first torque The unit, at least one first torsion unit of the at least one first link is simultaneously sleeved with a first guiding member for forming a frictional torque; the two ends of the first guiding member are respectively limited to be movable relative to the first body Located on the two first rails; at least one first extension of the at least one first link is pivotally connected to the second pivoting portion. The second link set is located in the first opening portion and the second opening portion, the second link set includes at least one second link, and the second link has a second connecting portion and the second connecting portion One end extends at an angle to the second extension portion, and the second connection portion and the second extension portion form a second intermediate portion, and a shaft rod coaxially passes through the first intermediate portion and the second intermediate portion to pivot at least a first connecting rod and at least one second connecting rod; the other end of the second connecting portion has a second torsion unit, and at least one second torsion unit of the at least one second connecting rod simultaneously sleeves a second guiding member, Providing a frictional torsion; the two ends of the second guiding member are respectively respectively arranged on the two second rails in a manner of being translatable relative to the second body; at least one second extending portion of the at least one second connecting rod is pivotally connected to the first Pivot.

Referring to FIG. 1 , which is a first embodiment of the present concealed split hinge 1 , comprising a first body 2 , a second body 3 , a first link set 4 , and a second link . Group 5 and a shaft 6. The first body 2 is coupled to the side of the display 9 of an electronic device, and the second body 3 is coupled to the base 91 of the electronic device.

As shown in FIG. 2 , the first body 2 includes a first seat body 21 , a first left side plate 22 , and a first right side plate 23 . Wherein, the first body 21 is substantially L-shaped, and the top surface of one side has a downwardly recessed groove 211 to save the material cost of manufacturing the first seat body 21. The first step 24 is the first seat. The top surface of the body 21 side is formed by descending toward the other side of the first seat body 21. The first left side plate 22 and the first right side plate 23 are respectively symmetrical with respect to the left and right sides of the first seat body 21, and the plate faces of the first left side plate 22 and the first right side plate 23 are respectively formed. An elongated first track (221, 231) and a circular first shaped pivot (222, 232). The first left side plate 22, the first base body 21 and the first right side plate 23 are sequentially passed through by two rivets 25 to be integrally connected, and a first between the first left side plate 22 and the first right side plate 23 is formed. An opening portion 26 is located at the first seat body 21 of the first opening portion 26.

The second body 3 includes a second base 31 , a second left side plate 32 , and a second right side plate 33 . Wherein, the second base body 31 is substantially L-shaped, and a top surface of one side thereof has a downwardly recessed groove 311 to save the material cost of manufacturing the second base body 31, and a second step 34 is provided by the second seat. The top surface of the body 31 side is formed by descending toward the other side of the second seat body 31. The second left side plate 32 and the second right side plate 33 are respectively symmetrical with respect to the left and right sides of the second seat body 31, and the board faces of the second left side plate 32 and the second right side plate 33 are respectively formed on the board surface. An elongated second track (321, 331) and a circular hole shaped second pivot (322, 332). The second left side plate 32, the second base body 31 and the second right side plate 33 are sequentially passed through by two rivets 35 to be integrated, and a second front plate 32 and the second right side plate 33 are formed. Two openings 36. The second step 34 is located at the second seat body 31 of the second opening portion 36, and the first link group 4 and the second link group 5 are located in the first opening portion 26 and the second opening portion 36.

In the implementation, as shown in FIG. 3, the first left side plate 22 has two first left positioning holes 223, and the first right side plate 23 has two first right positioning positions. The hole 233, the first and second sides of the first body 21 are respectively provided with two first protrusions (212, 213) for respectively corresponding to the two first left positioning holes 223 and the two first right positioning holes. 233, the first left side plate 22, the first base body 21, and the first right side plate 23 are coupled. Two second left positioning holes 323 are disposed on the surface of the second left side plate 32, and two second right positioning holes 333 are disposed on the surface of the second right side plate 33, and the left and right sides of the second base body 31 are Two second protrusions (312, 313) are respectively disposed on the side to respectively pass through the two second left positioning holes 323 and the two second right positioning holes 333, and the second left side plate 32 and the second side are also connected. The seat body 31 and the second right side plate 33.

As shown in Fig. 4, the first link group 4 includes a complex array of two juxtaposed first links 41. The first connecting portion 411 has a first connecting portion 411 and a first extending portion 412 extending at an angle from one end of the first connecting portion 411. The first connecting portion 411 and the first extending portion 412 are bent. A first intermediate portion 413 is formed. The other end of the first connecting portion 411 has a first torsion unit 414. The first torsion unit 414 includes two corresponding first curved arms 415, and a first axial hole is formed between the two first curved arms 415. 416. A first radial opening 417 is defined between the opposite ends of the two first curved arms 415. The first radial opening 417 and the first axial hole 416 are in communication with each other. The plurality of first torsion units 414 are simultaneously passed through by a first guiding member 42. The first guiding member 42 is a straight rod, so that the first torsion unit 414 and the first guiding member 42 are rotationally rubbed to generate a torque. . The first guiding member 42 passes through the plurality of first rings 43, the plurality of first rings 43 are respectively positioned between any two groups of juxtaposed first links 41, and the two juxtaposed first links 41 and the first Between the left side panels 22. The two ends of the first guiding member 42 respectively have two parallel parallel faces (421, 422), and the two sets of first parallel faces (421, 422) respectively pass through the two first tracks (221, 231) To be respectively limited to the two first tracks (221, 231), the first guiding member 42 can be translated relative to the first body 2 without relative rotation. The plurality of first extending portions 412 of the first link group 4 have coaxial circular holes, so that after the plurality of circular holes and the two second pivoting portions (322, 332) are simultaneously passed through one axis, the plurality of first portions are made. The extension portion 412 is rotatable relative to the second left side plate 32 and the second right side plate 33.

The second link group 5 includes a plurality of two parallel second links 51, and the second link 51 has the same shape as the first link 41. The juxtaposed second links 51 and the juxtaposed first links 41 are arranged in a staggered manner. The second connecting portion 511 has a second connecting portion 511 and a second extending portion 512 extending at an angle from one end of the second connecting portion 511. The second connecting portion 511 and the second extending portion 512 are bent. Forming a second intermediate portion 513, a shaft 6 coaxially passing through the first intermediate portion 413 of the plurality of first links 41 and the second intermediate portion 513 of the plurality of second links 51 for pivoting the plurality of first links 41 and a plurality of second links 51.

The other end of the second connecting portion 511 has a second torsion unit 514. The second torsion unit 514 includes two corresponding second curved arms 515. The second curved arms 515 form a second axial hole. 516, a second radial opening 517 is formed between the corresponding ends of the two second curved arms 515, and the second radial opening 517 and the second axial hole 516 are in communication with each other. The plurality of second torsion units 514 are simultaneously passed through by a second guiding member 52. The second guiding member 52 is a straight rod, so that the second torsion unit 514 and the second guiding member 52 are frictionally rubbed to generate a torque. . The second guiding member 52 passes through the plurality of second rings 53, and the plurality of second rings 53 are respectively positioned between any two groups of juxtaposed second links 51, and the two juxtaposed second links 51 and second Between the right side plates 33. Two ends of the second guiding member 52 respectively have two parallel parallel faces (521, 522), and the two sets of second parallel faces (521, 522) respectively pass through the two second tracks (321, 331) The two guiding members 52 are respectively arranged on the two second rails (321, 331) so that the second guiding member 52 can be translated relative to the second body 3 without relative rotation. In addition, the plurality of second extending portions 512 of the second link group 5 have coaxial circular holes, so that after a plurality of circular holes and two first pivoting portions (222, 232) are simultaneously passed through one axis, a plurality of The second extension portion 512 is rotatable relative to the first left side plate 22 and the first right side plate 23. In the implementation, the first link group 4 and the second link group 5 are arranged in the same manner as shown in FIG. 5, and the first link group 4 is formed by stacking a plurality of first links 41 in parallel. The second link group 5 is formed by stacking a plurality of second links 51 in parallel, and the first link group 4 and the second link group 5 have a single staggered shape.

Therefore, as shown in FIG. 6, when the display 9 is closed relative to the base 91, the user can rotate the display 9 to rotate relative to the base 91, so that the first body 2 and the first link set 4 are opposite to each other. The second body 3 and the second link group 5 rotate, and the first torsion unit 414 and the second torsion unit 514 respectively rotate and friction with the first guiding member 42 and the second guiding member 52 to generate a torsion force. The display 9 and the base 91 are free to stagnate at a certain angle while rotating. As shown in FIG. 7, when the display 9 and the base 91 are fully deployed at an angle of about 180 degrees, since the plurality of first connecting portions 411 of the first link group 4 press against the first step 24 of the first body 2, When the plurality of second connecting portions 511 of the second link group 5 press against the second step 34 of the second body 3, a stop action can be generated, so that the display 9 and the base 91 do not continue to rotate relative to each other.

Please refer to FIG. 8 , which is a second embodiment of the present invention, which is different from the first embodiment in that the first torsion unit 414 of the first link 41 includes a closed first annular piece. 418 and a first space 419, the inner circumference of the first annular piece 418 is provided with three annular grooves 420, and the three first grooves 420 are away from the axial direction of the first annular piece 418. To the recess, the first space 419 is formed on the outer circumference of the first annular piece 418; and the second torsion unit 514 of the second link 51 also has a closed second annular piece 518 and a second space 520, The inner circumference of the two annular segments 518 is provided with three second grooves 520, and the three second grooves 520 are radially recessed away from the axial direction of the second annular piece 518, and the second space 520 is formed on the second ring. The outer edge of the piece 518. In this way, the loops of the first and second annular pieces (418, 518) of the first and second torsion units (414, 514) can be formed into unequal widths to facilitate elastic deformation and elastically adjust the interference. Acting, and storing oil in the first and second grooves (420, 520) to provide lubrication while simultaneously closing the first and second spaces with the arc around the first and second annular pieces (418, 518) ( 419, 519) to provide heat dissipation and contain the effect of deformation. Thereby, the rotational friction between the first torsion unit 414, the second torsion unit 514 and the shaft 6 can also be generated to generate a torsion force, so that the display 9 and the base 91 can be freely stagnant when rotating, and both delay wear and cause The torsional decay effect caused by wear.

Therefore, the present invention has the following advantages: 1. The authoring unit accommodates the first link group and the second link group between the first body and the second body, and is at one end and the second of the first link group. One end of the connecting rod set is respectively provided with a plurality of first torsion units and a second torsion unit, so that the first torsion unit and the second torsion unit respectively clamp the first guiding member and the second guiding member as frictional torque The source, therefore, helps to reduce the volume without taking up space, and facilitates the overall design of the electronic device to achieve the overall volumetric and thin market demand. 2. The first link and the second link of the present invention have the same shape, and therefore, the processing procedure of the component members can be effectively simplified to reduce the production cost. 3. The first body of the creation has a first step, and the second body is provided with a second step to respectively generate a limit stop for the first link group and the second link group. Can effectively control the relative rotation angle of the display and the base. 4. Each of the links of the present invention can pass through a pair of curved arms and radial openings, or through a closed annular piece having an unequal ring width and a plurality of grooves for storing oil in the ring. The torsion units of the different structures are respectively formed, and each of them is connected with the curved space adjacent to or adjacent to each other. Therefore, when the friction is respectively rotated with the different shafts, in addition to elastic deformation, the interference between the two can be elastically adjusted to achieve the same. In addition to the torque value, it can also reduce the heat of rotation to reduce the thermal energy of the rotating friction, to delay the wear and the torsional decay caused by the wear, and to reduce the physical properties between the shaft and the flexible parts (for example) The shaft/flexible portions are plastically deformed to change the structure, or the chemical properties are changed (for example, the lubricating agent is easily deteriorated to cause etch).

The present invention has been disclosed in order to achieve the above objects, but it is not intended to limit the structural features of the present invention. Any person skilled in the art should know that in the technical spirit of the present invention, any thoughts Variations or modifications are possible and are covered by the scope of the patent application.

1‧‧‧Hidden split hinge
2‧‧‧First ontology
21‧‧‧First body
211, 311‧‧‧ grooves
212, 213‧‧‧ first stud
22‧‧‧ first left side panel
221, 231‧‧‧ first track
222, 232‧‧‧ first pivotal
223‧‧‧First left positioning hole
23‧‧‧First right side panel
233‧‧‧First right positioning hole
24‧‧‧ first step
25, 35‧‧ ‧ rivets
26‧‧‧First opening
3‧‧‧Second ontology
31‧‧‧Second body
312, 313‧‧‧second stud
32‧‧‧Second left side panel
321, 331‧‧‧ second track
322, 332‧‧‧ second pivotal
323‧‧‧Second left positioning hole
33‧‧‧second right side panel
333‧‧‧Second right positioning hole
34‧‧‧ second step
36‧‧‧second opening
4‧‧‧First Link Group
41‧‧‧First Link
411‧‧‧First connection
412‧‧‧First Extension
413‧‧‧The first intermediate part
414‧‧‧First Torque Unit
415‧‧‧First curved arm
416‧‧‧First shaft hole
417‧‧‧First radial opening
418‧‧‧First ring piece
419‧‧‧First space
420‧‧‧first groove
42‧‧‧First guide
421, 422‧‧‧ first parallel plane
43‧‧‧ First ring
5‧‧‧Second linkage
51‧‧‧Second connecting rod
511‧‧‧Second connection
512‧‧‧Second extension
513‧‧‧ second intermediate part
514‧‧‧Second Torque Unit
515‧‧‧Second curved arm
516‧‧‧Second shaft hole
517‧‧‧second radial opening
518‧‧‧second ring piece
519‧‧‧Second space
520‧‧‧second groove
52‧‧‧Second guide
521, 522‧‧‧ second parallel surface
53‧‧‧ second ring
6‧‧‧ shaft
9‧‧‧ display
91‧‧‧Base

Figure 1 is a perspective view of the first embodiment of the present invention. Fig. 2 is an exploded view of the first embodiment of the present invention. Figure 3 is an exploded view of the first body and the second body of the creation in different implementations. Figure 4 is an exploded view of the first link set and the second link set of the first embodiment of the present invention. Figure 5 is a perspective exploded view of the first link set and the second link set of the present invention in different combinations. Figures 6 and 7 are diagrams showing the state of use of the first embodiment of the present invention. Figure 8 is a perspective view of the first link and the second link of the second embodiment of the present invention.

1‧‧‧Hidden split hinge

2‧‧‧First ontology

21‧‧‧First body

211, 311‧‧‧ grooves

22‧‧‧ first left side panel

221, 231‧‧‧ first track

222, 232‧‧‧ first pivotal

23‧‧‧First right side panel

24‧‧‧ first step

25, 35‧‧ ‧ rivets

26‧‧‧First opening

3‧‧‧Second ontology

31‧‧‧Second body

32‧‧‧Second left side panel

321, 331‧‧‧ second track

322, 332‧‧‧ second pivotal

33‧‧‧second right side panel

34‧‧‧ second step

36‧‧‧second opening

4‧‧‧First Link Group

5‧‧‧Second linkage

6‧‧‧ shaft

Claims (15)

A concealed split hinge includes: a first body comprising two first tracks and two first pivoting portions, the first body having a first opening; and a second body comprising two a second track and a second second pivoting portion, the second body has a second opening portion; a first link group is located in the first opening portion and the second opening portion, the first connection The rod set includes at least one first connecting rod, the first connecting rod has a first connecting portion and a first extending portion extending from an end of the first connecting portion at an angle, the first connecting portion and the first connecting portion Forming a first intermediate portion at a bend of the extending portion, the other end of the first connecting portion has a first torsion unit, and the at least one first torsion unit of the at least one first connecting rod simultaneously sleeves a first guiding portion a guiding member for forming a frictional torsion; the two ends of the first guiding member are respectively restricted to the two first rails in a manner of being translatable relative to the first body; the at least one first connecting rod is at least a first extension is pivotally connected to the second pivoting portion; and a second linkage is located Among the first opening portion and the second opening portion, the second link group includes at least one second link, the second link has a second connecting portion and is formed by one end of the second connecting portion An angle extending one of the second extensions, the second connection portion and the second extension portion forming a second intermediate portion, a shaft coaxially passing through the first intermediate portion and the second intermediate portion for pivoting The at least one first link and the at least one second link; the other end of the second connecting portion has a second torsion unit, and the at least one second torsion unit of the at least one second link is simultaneously sleeved a second guiding member for forming a friction torque; the two ends of the second guiding member are respectively restricted to the two second rails in a manner of being translatable relative to the second body; the at least one second connecting rod The at least one second extension is pivotally connected to the first pivoting portion. The concealed split hinge according to the first aspect of the invention, wherein the first body of the first opening portion forms a first step, and the second body portion of the second opening portion forms a first Two steps. The concealed split hinge according to claim 1 or 2, wherein the first system comprises a first seat body, a first left side plate and a first right side plate, the two first tracks and The two first pivoting portions are respectively formed on the board surface of the first left side panel and the board surface of the first right side panel, and the first opening portion is formed on the first left side panel and the first right side panel between. The concealed split hinge according to claim 3, wherein the first left side panel, the first base body and the first right side panel are simultaneously passed through at least one rivet for joining together. The concealed split hinge according to claim 3, wherein the first left side panel is provided with at least one first left positioning hole, and the first right side panel is provided with at least one a right positioning hole, the left and right sides of the first body are respectively provided with at least one first protrusion for respectively passing through the at least one first left positioning hole and the at least one first right positioning hole, The first left side plate, the first seat body and the first right side plate are coupled. The concealed split hinge according to claim 1 or 2, wherein the second system comprises a second seat, a second left side plate and a second right side plate, the two second tracks and The two second pivoting portions are respectively formed on the plate surface of the second left side plate and the second right side plate, and the second opening portion is formed on the second left side plate and the second right side plate between. The concealed split hinge according to claim 6, wherein the second left side panel, the second base body and the second right side panel are simultaneously passed through at least one rivet for joining together. The concealed split hinge according to claim 6, wherein the second left side panel is provided with at least one second left positioning hole, and the second right side board is provided with at least one a second right positioning hole, wherein the left and right sides of the second body are respectively provided with at least one second protrusion for respectively passing through the at least one second left positioning hole and the at least one second right positioning hole, The second left side plate, the second seat body and the second right side plate are coupled. The concealed split hinge according to claim 1 or 2, wherein the first torsion unit comprises two corresponding first arcuate arms for forming a first shaft hole, the two first A first radial opening is formed between the opposite ends of the curved arm, the first radial opening being in communication with the first axial bore. The concealed split hinge according to claim 1 or 2, wherein the second torsion unit comprises two corresponding second arcuate arms for forming a second shaft hole, the two second A second radial opening is formed between the opposite ends of the curved arm, and the second radial opening is in communication with the second axial bore. The concealed split hinge according to claim 1 or 2, wherein the first torsion unit comprises a closed first annular piece and a first space, and the inner circumference of the first annular piece is set Having at least one first groove, the at least one first groove is radially recessed away from the axial direction of the first annular piece, and the first space is formed on the outer periphery of the first annular piece for The amount of deformation of the first annular piece is accommodated. The concealed split hinge according to claim 1 or 2, wherein the second torsion unit comprises a closed second annular piece and a second space, and the inner circumference of the second annular piece is provided with at least a second groove, the at least one second groove is radially recessed away from the axial direction of the second annular piece, and the second space is formed on the outer circumference of the second annular piece for accommodating the second The amount of deformation of the annular piece. The concealed split hinge according to claim 1 or 2, wherein the first link set includes a plurality of first links, and the second link set includes a plurality of second links, A plurality of first links and the plurality of second links are disposed in a staggered stack. The concealed split hinge according to claim 13, wherein the two ends of the first guiding member respectively have two parallel parallel faces which are respectively arranged on the two first rails. And translating with respect to the first body; the two ends of the second guiding member respectively have two parallel parallel faces which are respectively parallel to the two second tracks, and are opposite to the second Body translation. The concealed split hinge according to claim 13 , wherein the first guide member has at least one first ring for positioning the plurality of first torsion units of the plurality of first links; The second guiding member has at least one second ring for positioning the plurality of second torsion units of the plurality of second links.