CN111005633A

CN111005633A - Hinge device

Info

Publication number: CN111005633A
Application number: CN201811169631.0A
Authority: CN
Inventors: 陈旺松
Original assignee: Waterson Corp
Current assignee: Waterson Corp
Priority date: 2018-10-08
Filing date: 2018-10-08
Publication date: 2020-04-14
Anticipated expiration: 2038-10-08
Also published as: CN111005633B

Abstract

A hinge device mainly comprises a first leaf and a second leaf which can be operated to bear external force to rotate, two sleeve units which are arranged between the first leaf and the second leaf in a penetrating way and rotate synchronously with the first leaf, and a mandrel. The mandrel comprises a fixing piece which rotates synchronously with the second sheet and two shaft sections which penetrate through the sleeve unit and are involuted with the fixing piece to form linkage. When the first leaf or the second leaf rotates in the positive direction, the shaft sections respectively interact with the kit unit, so that at least one of the kit unit generates a trigger force for resisting the external force or a trigger force capable of being stored, and after being released, the shaft sections are used for driving the first leaf or the second leaf to rotate in the reverse direction. Therefore, the split mandrel can be suitable for different types of kit units under the condition of replacing different shaft sections, the modular design can be adopted, the assembly cost is reduced, and the assembly simplicity can be greatly improved.

Description

Hinge device

Technical Field

The present invention relates to a hinge, and more particularly to a hinge device capable of adjusting a torsion and a slow closing speed of a door.

Background

A conventional hinge device disclosed in taiwan patent No. I580856 includes a first sheet unit for fixing two objects, a first sleeve unit penetrating the first sheet unit and rotating synchronously with two first sheets of the first sheet unit and linked with each other, and an oil pressure type sleeve unit. Therefore, under the condition that an external force acts on any object, the speed of the object in relative displacement is controlled by utilizing the oil pressure buffering effect generated by the oil pressure type external member unit, and the hinge device is free of directional limitation in installation through the linked design of hydraulic-mechanical interaction formed by the first external member unit and the oil pressure type external member unit, so that the effects of quick opening and slow closing are achieved.

However, referring to fig. 5, 6, 19 and 22 of the patent No. I580856, the reference numerals of the aforementioned patent application are added below, and the structure of the shaft center, such as the connecting shaft 42, the shaft 563, the connecting shaft 68, etc., and the matching components, the torsion spring type kit unit 4, the hydraulic type kit unit 5, or the frictional resistance type kit unit 6 must be matched, and there is a room for improvement in the number of components, the cost, and the assembling process.

Disclosure of Invention

The invention aims to provide a hinge device which can be designed in a modularized way, reduce the assembly cost and greatly improve the assembly simplicity.

The hinge device of the present invention is used for connecting two objects, and comprises: a leaf unit, two sleeve units, and a spindle.

The blade unit comprises a first blade and a second blade which can be operated to bear external force to rotate, the first blade is provided with at least one first seat pipe, and the second blade is provided with at least one second seat pipe which is arranged at intervals along the axial direction with the first seat pipe.

The external member unit is respectively arranged in the first seat tube and the second seat tube in a penetrating manner in the axial direction from two opposite directions of the leaf unit, and rotates synchronously with the first leaf.

The method is characterized in that:

the mandrel comprises a fixing piece which is positioned in a second seat tube of the second sheet and synchronously rotates with the second sheet, and two shaft sections which penetrate through the sleeve unit and are involuted with the fixing piece to form linkage, and when the first sheet or the second sheet rotates in the positive direction, the shaft sections respectively interact with the sleeve unit, so that at least one of the sleeve unit generates a trigger force for resisting the external force.

In the hinge device of the present invention, the first sheet further has a first attaching surface connected to the corresponding object, and a first reference surface formed on the first attaching surface along a direction parallel to the axis and protruding from the first attaching surface, wherein the first reference surface is used for the edge of the corresponding object to abut against.

In the hinge device of the present invention, the second sheet further has a second attaching surface connected to the corresponding object, and a second reference surface formed on the second attaching surface along a direction parallel to the axis and protruding from the second attaching surface, wherein the second reference surface is used for the edge of the corresponding object to abut against.

According to the hinge device, the first sheet is in a shape of a letter 21274, and the second sheet is arranged between the first sheets.

The hinge device further comprises a ring unit, the ring unit comprises a plurality of lantern rings and a plurality of spacing groups, the lantern rings penetrate between the sleeve unit and the second seat tube, each spacing group is provided with at least one spacing ring, and each spacing ring is provided with a ring wall penetrating at least one of the first seat tube and the second seat tube which are adjacent to each other and a ring edge blocking the space between the first seat tube and the second seat tube.

In the hinge device, the first leaf and the second leaf are made of metal materials, and the lantern ring can be made of a polymethyl material or a teflon.

In the hinge device of the invention, one of the kit units comprises a pipe fitting which is arranged in the first sleeve and the second sleeve in a penetrating way and forms linkage with the first leaf, a brake spring set arranged in the pipe fitting in a penetrating way, a friction piece which is forced by the brake spring set and forms linkage with the pipe fitting, and an end piece which is screwed with the pipe fitting and is forced to abut against the brake spring set to change the trigger force, wherein the friction piece is provided with a friction curved surface which is in friction contact with a corresponding shaft section, when the external force acts on the first leaf or the second leaf, the friction curved surface of the friction piece and the shaft section are in mutual friction contact, and generating friction resistance serving as the trigger force by the friction piece, wherein the curvature position of the friction curved surface is used for controlling the first sheet or the second sheet to generate the friction resistance effect when the angle is preset.

In the hinge device, the fixing part of the mandrel is provided with a square bolt hole extending along the axial direction and a groove, the square bolt hole is sleeved with a bolt post of one shaft section, the other shaft section adjacent to the friction part is provided with two convex parts facing the friction part and in friction contact with the friction part, and the bolt post is clamped with the groove of the fixing part.

The hinge device of the present invention, the other one of the kit units, includes a tube inserted into the first and second seat tubes, a torsion spring inserted into the tube of the other kit unit and surrounding the corresponding shaft section of the spindle, and an end piece rotatably engaged with the tube and rotating the torsion spring to change the magnitude of the trigger force, wherein the torsion spring has two ends connected to the end piece and the corresponding shaft section, when the external force acts on the first or second leaf, the end piece or the corresponding shaft section twists the torsion spring to generate and store the trigger force, and when the stored trigger force is released, the stored trigger force is used to drive the first or second leaf to rotate in the opposite direction.

The hinge device of the invention, another one of the kit units, include pierce in said first seat tube and said second seat tube and form the pipe fittings interlocked with said first leaf, pierce in said oil pressure module in the said pipe fittings of another kit unit, pierce in said pipe fittings and form the near-end acting member interlocked with said pipe fittings, and a end fitting to enclose one end of said pipe fittings, said oil pressure module have oil hydraulic cylinder, and force top pin and elastic element to support between said oil hydraulic cylinder and corresponding shaft section of said mandrel, said near-end acting member have, reverse to said fixed part near-end inclined plane, and support the perforation that the corresponding shaft section of said mandrel passes through, and the shaft section that passes through said perforation also has, force top pin that force support said oil hydraulic module and pressing surface of the elastic element, and face the near-end conjunction surface of the inclined plane of said near-end, when the aforesaid external force acts on said first leaf or said second leaf, the near-end fit surface and the near-end inclined surface are pushed to be away from each other and are pressed to abut against the oil pressure module to generate the trigger force.

The hinge device of the invention, one of the kit units, include the pipe fitting that is put through said first seat tube and said second seat tube and forms the interlock with said first leaf, the hydraulic module put through said pipe fitting, put through said pipe fitting and form the near-end acting part of the interlock with said pipe fitting, and a end fitting to encapsulate one end of said pipe fitting, said hydraulic module has hydraulic cylinders, and force and support in said hydraulic cylinders and top pin and elastic component between the corresponding shaft sections of said mandrel, said near-end acting part has near-end inclined plane opposite to said fixed part, and the perforation for the shaft section corresponding to said mandrel to pass through, and the shaft section that passes through said perforation also has the top pin that forces and supports in said hydraulic module and pressing surface of the elastic component, and the near-end conjunction surface facing said near-end inclined plane, when the aforesaid external force acts on said first leaf or said second leaf, the near-end fit surface and the near-end inclined surface are pushed to be away from each other and are pressed to abut against the oil pressure module to generate the trigger force.

In the hinge device of the present invention, the shaft section passing through the proximal acting element further has a distal engaging surface opposite to the proximal engaging surface, the distal acting element is disposed between the oil cylinder and the shaft section passing through the proximal acting element, the distal acting element has a distal inclined surface facing the distal engaging surface, and when the external force acts on the first leaf or the second leaf, the proximal engaging surface and the proximal inclined surface are pushed against each other and the distal engaging surface and the distal inclined surface are engaged with each other, so that the shaft section is forced to abut against the oil pressure module to generate the trigger force.

The hinge device of the invention is characterized in that the hydraulic cylinder is screwed with the corresponding pipe fitting and is provided with a hexagonal setting hole and a hexagonal throttling hole, the hexagonal setting hole extends from the top surface along the axis, the hexagonal setting hole is used for adjusting the screwing depth of the hydraulic cylinder after a tool is embedded into the hexagonal setting hole and is used for setting the angle range of an oil pressure buffer area when the corresponding object rotates, and the hexagonal throttling hole is used for adjusting the flowing speed of the internal oil pressure after another tool is embedded into the hexagonal throttling hole.

The hinge device of the invention, each kit unit includes the pipe fittings that are set in the first seat tube and the second seat tube, the torsion spring that is set in the pipe fittings and surrounds the corresponding shaft section of the mandrel, and one end piece that can be engaged with the pipe fittings and rotate the torsion spring to change the magnitude of the trigger force, the torsion spring has two ends that are connected with the end piece and the corresponding shaft section, when the external force acts on the first leaf or the second leaf, the end piece or the corresponding shaft section twists the torsion spring to generate and store the trigger force, the stored trigger force is used to drive the first leaf or the second leaf to rotate reversely after being released.

In the hinge device, the shaft section surrounded by the torsion spring is provided with the square bolt post which is sleeved with the end piece and can rotate together, the sleeve unit penetrated with the torsion spring also comprises an auxiliary spring and a slide block, the end piece is provided with an inclined surface, the auxiliary spring is penetrated between the torsion spring and the corresponding shaft section, the slide block is pressed against the end part of the auxiliary spring and is used for displacing along the axis relative to the end piece, and the hinge device is provided with a square bolt hole which is sleeved with the square bolt post and can rotate together and an inverse inclined surface facing the inclined surface.

In the hinge device of the present invention, the torsion spring further includes two sets of end coils connected to the end portion, and a middle coil connected between the end coils, each set of the end coils has at least two or more coils which are tightly wound with a first gap therebetween, and the middle coil has a plurality of coils which are spaced with a second gap therebetween, and the first gap is smaller than the second gap, so that the torsion generated by the end coils is larger than the torsion generated by the middle coil.

In the hinge device, each shaft section of the mandrel is provided with a bolt, the fixing piece is provided with a square bolt hole and a groove which are arranged along the axial direction, the square bolt hole is sleeved with one bolt, and the groove is sleeved with the other bolt.

In the hinge device, each shaft section of the mandrel is also provided with a ring edge forming a notch, the fixing piece is also provided with two grooves connected with the notches of the shaft sections, and one end part of the torsion spring passes through the corresponding notch and is inserted into the corresponding groove.

In the hinge device of the present invention, the first seat pipe has two inner planes formed on an inner surface, and each kit unit includes a pipe member inserted between the first seat pipe and the second seat pipe, the pipe member having two outer planes formed on an outer surface and abutting against the inner plane of the first seat pipe to be interlocked with the first seat pipe.

In the hinge device, at least one pipe fitting of the kit unit is also provided with a first pipe section and a second pipe section which are mutually involutory, and the involutory part of the first pipe section and the second pipe section is positioned in the first seat pipe.

The invention has the beneficial effects that: the separated mandrel can be suitable for kit units of different types under the condition of replacing different shaft sections, so that the modular design can be realized, the assembly cost is reduced, and the assembly simplicity can be greatly improved.

Drawings

Other features and effects of the present invention will become apparent from the following detailed description of the embodiments with reference to the accompanying drawings, in which:

FIG. 1 is a top view illustrating two objects connected to a first embodiment of the hinge device of the present invention;

FIG. 2 is an exploded perspective view of the first embodiment;

FIG. 3 is an exploded perspective view of a kit unit and a mandrel according to the first embodiment;

FIG. 4 is an assembled cross-sectional view of FIG. 3;

FIG. 5 is an exploded perspective view of another kit unit of the first embodiment;

FIG. 6 is an assembled cross-sectional view of FIG. 5;

FIG. 7 is an assembled perspective view of the first embodiment;

FIG. 8 is a cross-sectional view of the first embodiment;

fig. 9 is an exploded perspective view illustrating a second embodiment of the hinge device of the present invention;

FIG. 10 is an exploded perspective view of a kit unit of the second embodiment;

FIG. 11 is an assembled cross-sectional view of the kit unit of FIG. 10;

FIG. 12 is an exploded perspective view of another kit unit of the second embodiment;

FIG. 13 is an assembled cross-sectional view of the kit unit of FIG. 12;

FIG. 14 is a perspective view of the second embodiment;

FIG. 15 is a cross-sectional view of the second embodiment;

fig. 16 is a sectional view illustrating a third embodiment of the hinge device of the present invention;

fig. 17 is a cross-sectional view illustrating a fourth embodiment of the hinge device of the present invention;

FIG. 18 is a cross-sectional view illustrating another aspect of the cartridge unit of the previous embodiment;

fig. 19 is an exploded perspective view illustrating a fifth embodiment of the hinge device of the present invention;

FIG. 20 is a cross-sectional view of the fifth embodiment;

fig. 21 is an exploded perspective view illustrating a sixth embodiment of the hinge device of the present invention;

FIG. 22 is a cross-sectional view of the sixth embodiment;

FIG. 23 is an exploded perspective view illustrating a variation of one ring unit in the illustrated embodiment;

fig. 24 is a sectional view illustrating the ring unit and the leaf unit in the embodiment.

Fig. 25 is a sectional view illustrating another aspect of the cartridge unit including the torsion spring in the second, third, fourth and sixth embodiments;

FIG. 26 is a cross-sectional view illustrating the hinge assembly of the present invention in combination with two kit units as in FIG. 25; and

fig. 27 is a cross-sectional view similar to fig. 16, but with the cartridge unit including the torsion spring in the configuration of fig. 25.

Detailed Description

Before the present invention is described in detail, it should be noted that in the following description, like elements are represented by like reference numerals.

Referring to fig. 1 and 2, a first embodiment of the hinge device of the present invention for connecting two objects 11, 12 (such as a door frame and a door leaf) comprises a leaf unit 2, two

sleeve units

6, 7, a mandrel 4, and a ring unit 5.

The sheet unit 2 includes a first sheet 21 and a second sheet 22 that are operable to rotate by an external force. The first sheet 21 and the second sheet 22 are made of metal materials.

In the present embodiment, the first sheet 21 has two first seat tubes 211 formed at two ends and arranged at intervals along an axis X direction, a first attachment surface 212 adjacent to the first seat tubes 211 and connected to the corresponding object 11, and a first reference surface 213 formed on the first attachment surface 212 in a direction parallel to the axis X and protruding from the first attachment surface 212. The first reference plane 213 is intended to be abutted by one edge 111 of the corresponding article 11. The first seat tube 211 has two inner flat surfaces 2111 formed on the inner surface.

The second sheet 22 is disposed between the first sheets 21, and has a second seat tube 221 spaced from the first seat tube 211 along the axis X direction, a second attachment surface 222 adjacent to the second seat tube 221 and connected to the corresponding object 12, and a second reference surface 223 formed on the second attachment surface 222 along the axis X direction and protruding from the second attachment surface 222. The second reference surface 223 is intended to be abutted by one edge 121 of the corresponding article 12.

Referring to fig. 3 to 6 and 8, the kit unit 6 includes a tube 61 inserted through the first seat tube 211 and the second seat tube 221 and interlocked with the first seat tube 211, an oil pressure module 62 inserted through the tube 61, a distal end acting member 63 and a proximal end acting member 64 inserted through the tube 61 and interlocked with the tube 61, and an end member 65 enclosing an end of the tube 61.

The tube 61 has a first tube segment 611 and a second tube segment 612 adjoining the first tube segment 611. The first tube segment 611 has two outer flat faces 6111 formed on the outer surface and abutting against the inner flat face 2111 of the corresponding first seat tube 211, and two first caulking grooves 6112 extending from the end portion in the direction parallel to the axis X. The second tube segment 612 has two outer planes 6121 formed on the outer surface and abutted against the inner plane 2111 of the corresponding first seat tube 211, two concave portions 6122 formed on the inner surface oppositely, and two second caulking grooves 6123 extending from the end portion along the direction parallel to the axis X and being involuted with the first caulking grooves 6112 to define two embedding spaces 610. Therefore, the pipe 61 is linked with the corresponding inner plane 2111 of the first seat pipe 211 through the abutting relationship between the

outer planes

6111 and 6121. It should be noted that the two-section pipe 61 is easy to manufacture, easy to control in precision, and can be manufactured by using different materials to meet different requirements by improving the strength of the whole pipe during rotation through concave-convex matching, and the joint portion of the first pipe section 611 and the second pipe section 612 needs to be located in the corresponding first seat pipe 211.

The hydraulic module 62 has a hydraulic cylinder 621, and a top pin 622 and an elastic element 623 that are pressed against the hydraulic cylinder 621. The cylinder 621 is screwed to the first tubular segment 611 of the tubular member 61 and has a hexagonal setting hole 6211 extending from the top surface along the axis X and exposed through the end member 65, a hexagonal orifice 6212, and a needle 6213 abutting against the top pin 622 in a manner of telescopic displacement opposite to the hexagonal setting 6211.

The distal action member 63 is clamped between the first tube segment 611 and the second tube segment 612 of the tube 61, and has a distal inclined surface 631, and two engagement blocks 632 engaged with the first slot 6112 of the first tube segment 611 and the second slot 6123 of the second tube segment 612.

The proximal acting element 64 has a proximal slope 641, a through hole 642, and two protrusions 643 formed at the outer circumferential surface thereof. The male part 643 of the proximal acting element 64 fits snugly into the female part 6122 of the second tube section 612.

The kit unit 7 includes a tube 71 inserted between the first seat tube 211 and the second seat tube 221 and interlocked with the first seat tube 211, a brake spring assembly 72 inserted in the tube 71, a friction member 73 forced by the brake spring assembly 72 and interlocked with the tube 71, an end member 74 screwed with the tube 71 and forced against the brake spring assembly 72, and a plurality of spacers 75 disposed between the friction member 73 and the brake spring assembly 72, and between the brake spring assembly 72 and the end member 74. The tube 71 has a first tube section 711 and a second tube section 712 adjoining the first tube section 711. The first tube segment 711 has two outer flat surfaces 7111 formed on the outer surface and abutting against the inner flat surface 2111 of the corresponding first seat tube 211, and two fitting blocks 7112 extending from the end portions in a direction parallel to the axis X. The second tube segment 712 has two outer flat faces 7121 formed on the outer surface and abutting against the inner flat face 2111 of the corresponding first seat tube 211, two concave portions 7122 formed at the opposite ends, and two caulking grooves 7123 extending from the ends in the direction parallel to the axis X and butt-fitted to the fitting block 7112. The brake spring assembly 72 has a plurality of spring blades 721 disposed between the friction member 73 and the pad 75, and a pad 722 disposed between the two pads 75. The friction member 73 has two protrusions 731 formed on an outer circumferential surface thereof to be fitted into the recesses 7122, and a friction curved surface 732 formed on one end surface thereof. Thereby, the pipe 71 is interlocked with the abutting relationship between the outer

flat surfaces

7111 and 7121 and the inner flat surface 2111 of the corresponding first seat pipe 211. It should be noted that the two-section pipe 71 is also easy to manufacture, easy to control in precision, and can be manufactured by using different materials to meet different requirements by improving the strength of the whole pipe during rotation through concave-convex matching so as to prevent breakage, and the joint portion of the first pipe section 711 and the second pipe section 712 needs to be located in the corresponding first seat pipe 211.

In this embodiment, the mandrel 4 includes a fixing member 41 positioned in the second seat tube 221 of the second sheet 22 and rotating synchronously with the second sheet 22, a shaft section 43 penetrating the kit unit 6, and a shaft section 44. It is noted that the distal acting member 63 is located between the hydraulic cylinder 621 and the shaft section 43. And the proximal acting element 64 is disposed between the shaft segment 43 and the fixed element 41.

The fixing member 41 has a square bolt hole 411 and a recess 412 arranged along the axis X direction, and two grooves 413 formed on two opposite sides along the axis X direction. In this embodiment, the groove 412 is a circular groove.

The shaft segment 43 passes through the through hole 642 and has a stud 431 coupled with the square stud hole 411 of the fixing member 41 to form a linkage, a pressing surface 432 opposite to the stud 431 and for the knock pin 622 and the elastic element 623 to press against, a surrounding wall 433 defining a groove with the pressing surface 432, and a proximal engaging surface 434 opposite to the pressing surface 432 and facing the proximal inclined surface 434. The peripheral wall 433 has a distal engagement face 4331 opposite the proximal engagement face 434 and facing the distal ramp 631. In this embodiment, the studs 431 are square studs.

The shaft section 44 has a single bolt hole 440 that is engaged with and interlocked with the bolt 431 of the shaft section 43, a single bolt 441 that is engaged with and interlocked with the groove 413 corresponding to the fixing member 41, and two protrusions 442 facing the friction curved surface 732 of the kit unit 7. In this embodiment, the key hole 440 is a square key hole. The studs 441 may also be designed to interlock with the recesses 412. The protrusions 442 are in frictional contact with the corresponding curved friction surfaces 732 of the friction member 73. It should be noted that, by controlling the curvature position of the friction curved surface 732 of the friction member 73, the first leaf 21 interlocked with the kit unit 7 or the second leaf 22 interlocked with the fixing member 41 and the friction member 73 can be controlled to generate a friction stopping effect at the highest point of the friction curved surface 732 at a predetermined angle (e.g. 80-90 degrees), so that the door can be temporarily stopped at the predetermined angle position, and the door can be automatically closed only by lightly pulling or lightly pushing the door by hand, or the door closing speed of the door can be controlled to generate a friction resisting effect at the friction curved surface 732 to change the door closing speed at the predetermined angle, for example, less than 20 degrees or 20-60 degrees when the door is closed by the first leaf 21 or the second leaf 22. It should be noted that the angle for temporarily stopping the rotation of the door or changing the door closing speed of the door can be arbitrarily changed from 180 degrees to 80 degrees according to the curvature position of the friction curved surface 732 of the different friction members 73 and the customer's requirement, but not limited thereto.

Referring to fig. 2 and 8, the ring unit 5 includes two collars 51 and two spacing groups 52. The collar 51 is inserted between the

pipe members

61, 71 of the

kit units

6, 7 and the second seat pipe 221, respectively. Each spacer group 52 has a spacer ring 521. The spacer ring 521 has a ring wall 522 penetrating the second seat tube 221 and a ring edge 523 blocking the gap between the first seat tube 211 and the second seat tube 221. The collar 51 and the spacer 52 may be made of Polyoxymethylene (POM) or teflon (PTFE) for improving the lubrication between the first seat tube 211, the second seat tube 221 and the

tube members

61, 71 of the

kit units

6, 7 and reducing the resistance and wear.

When the

articles

11 and 12 are connected, the first reference surface 213 of the first sheet 21, the second reference surface 223 of the second sheet 22, or the edge 111 of the article 11, or the edge 121 of the article 12 is only required to abut against, so that the plurality of hinge devices can be aligned in a straight line in the vertical direction and the parallel direction with respect to the article 11 or the article 12, thereby avoiding errors in the positions of the hinge devices in the vertical direction and the parallel direction during the installation, and improving the smoothness during the rotation of the door leaf.

Referring to fig. 1, 5 and 6, when the first blade 21 is driven by an external force to rotate around the axis X to open the door, the first blade 21 drives the

pipes

61 and 71 of the

kit units

6 and 7 synchronously through the first seat pipe 211. At this time, since the engagement block 632 of the distal acting element 63 is fitted into the first groove 6112 of the first tube 611 and the second groove 6123 of the second tube 612, when the first leaf 21 rotates, the tube 61 simultaneously drives the distal acting element 63 and the proximal acting element 64 to rotate, and when the second seat tube 221 of the second leaf 22 and the fixing element 41 and the shaft section 43 are not rotated, the tube 61, the distal acting element 63 and the proximal acting element 64 are forced to abut against the proximal engagement surface 434 of the shaft section 43 by the proximal inclined surface 641 to enlarge the distance between the shaft section 43 and the proximal acting element 64, and the shaft section 43 is pushed to move linearly up and down in the direction of the distal acting element 63, and the distal inclined surface 631 engages with the distal engagement surface 4331, the distance between the shaft section 43 and the distal end effector 63 is reduced, so that the shaft section 43 pushes the top pin 622 to press the valve needle 6213 of the hydraulic cylinder 621 to extend and contract to control the door closing speed, and the pressing surface 432 compresses the elastic element 623 to generate the mutually linked acting force.

Meanwhile, the pipe 71 will simultaneously drive the friction member 73 to rotate, and also in the case that the second seat pipe 221 of the second sheet 22 and the fixing member 41 are not rotated, the friction member 73 will be in friction contact with the protrusion 442 of the shaft section 44 during the rotation process, so as to generate the trigger force against the aforementioned external force.

When the external force is released, the elastic element 623 is pressed by the hydraulic cylinder 621 and the distal acting element 63 when the door is closed, and when the door is closed, an elastic restoring force is provided, so that the tube 61 of the kit unit 6, the distal acting element 63, the proximal acting element 64, the tube 71 of the kit unit 7, the friction element 73 and the first leaf 21 rotate in opposite directions, until the distal acting element 63 pushes the distal engagement surface 4331 of the shaft segment 43 by the distal inclined surface 631, so as to enlarge the distance between the distal acting element 63 and the shaft segment 43, the proximal acting element 64 engages the proximal engagement surface 434 of the shaft segment 43 by the proximal inclined surface 641, and when the distance between the proximal acting element 64 and the shaft segment 43 is reduced, so as to displace the shaft segment 43 toward the proximal acting element 64, and the ejector pin 6213 of the hydraulic cylinder 621 no longer presses the ejector pin 622, thereby releasing the compression force of the elastic element 623 and the thimble 6213 of the oil hydraulic cylinder 621.

It should be noted that even if the triggering force of the elastic element 623 is insufficient, during the forward and reverse rotation of the inclined surface 631 of the distal acting element 63, the distance between the distal acting element 63 and the shaft segment 43 can be enlarged and the distance between the proximal inclined surface 641 of the proximal acting element 64 and the proximal engagement surface 434 of the shaft segment 43 can be reduced by pushing the distal inclined surface 631 of the distal acting element 63 through the engagement relationship with the distal engagement surface 4331 of the shaft segment 43 to assist the forward and reverse rotation of the distal acting element 63.

Since the hinge device of the present invention has no directional limitation when being installed, when the second leaf 22 is driven by external force to rotate around the axis X to open the door, the second leaf 22 synchronously drives the fixing member 41 of the spindle 4 through the second seat tube 221, so that the fixing member 41 synchronously rotates the shaft section 43 and the shaft section 44 through the engaging relationship between the square bolt hole 411 of the fixing member 41 and the bolt 431 of the shaft section 43, the engaging relationship between the groove 413 and the bolt 441 of the shaft section 44, and the engaging relationship between the bolt 431 of the shaft section 43 and the bolt hole 440 of the shaft section 44.

Thereby, the protrusion 442 of the shaft segment 44 is brought into frictional contact with the friction member 73, so as to generate a trigger force against the external force, and the door closing speed is controlled by the magnitude of the trigger force.

At the same time, the proximal engagement surface 434 of the shaft section 43 is forced to abut against the proximal inclined surface 641 of the proximal acting element 64, and since the proximal acting element 64 is fixed in the groove 6122 of the second tube section 612 of the tube 61, the distance between the shaft section 43 and the proximal acting element 64 is expanded, the shaft section 43 is pushed to move linearly up and down toward the distal acting element 63, the distance between the shaft section 43 and the distal acting element 63 is reduced by engaging the distal inclined surface 631 with the distal engagement surface 4331, the shaft section 43 is pushed to press the ejector pin 6213 of the hydraulic cylinder 621 by the ejector pin 622, and the elastic element 623 is compressed by the pressing surface 432 to reduce the distance, so that the ejector pin 6213 of the hydraulic cylinder 621 is inwardly compressed to generate resistance (i.e. trigger force).

Whereby, when the external force is released to close the door, the second leaf 22, the shaft section 43 and the shaft section 44 are driven by the return elastic force of the elastic element 623 to rotate in opposite directions, so that the shaft section 43 pushes the distal inclined surface 631 of the distal acting member 63 against the distal engaging surface 4331 during rotation without rotating the tube 61, the distal acting member 63, the proximal acting member 64, the tube 71 of the kit unit 7, the friction member 73 and the first leaf 21 of the kit unit 6, and the distance between the distal acting member 63 and the shaft section 43 is enlarged by the return elastic force of the spring 623, and the distance between the proximal acting member 64 and the shaft section 43 is reduced by the engagement between the proximal engaging surface 434 and the proximal acting member 64, and at the same time, the shaft section 64 is displaced toward the proximal acting member 64 without pressing the top pin 622, thereby releasing the compression force of the elastic element 623 and the thimble 6213 of the oil hydraulic cylinder 621.

It should be noted that the hexagonal setting hole 6211 of the hydraulic cylinder 621 can be inserted by a hand tool, so that the screwing depth of the hydraulic cylinder 621 and the pipe 61 can be adjusted by rotating the hydraulic cylinder 621 by the hand tool, and the tightness at the contact position of the thimble 6213 of the hydraulic cylinder 621 and the thimble 622 is adjusted to move the position of the buffer area, thereby adjusting the angle range with the hydraulic buffer area for door closing deceleration. The hexagonal orifice 6212 may be inserted into another hand tool, so that the flow rate of the oil pressure inside the oil pressure cylinder 621 is adjusted by the hand tool to control the door closing speed, and in addition, the end piece 74 may be screwed in or out, and the trigger force of the spring 721 is changed by the pad 722, or the friction piece 73 with different friction curved surfaces 732 is replaced, so that the friction curved surface 732 of the friction piece 73 and the protruding portion 442 of the shaft section 44 may generate friction resistance at different angles, and the magnitude of the friction force may be adjusted to form another way of mechanically controlling the door closing speed. Therefore, the door closing speed is controlled, and all the buffering resistance can be eliminated when the door is closed to be smaller than a preset angle (for example, smaller than 20 degrees) by releasing the oil pressure and setting the angle of the curved surface 732.

Referring to fig. 9 and 10, a second embodiment of the hinge device of the present invention, which is substantially the same as the first embodiment, also includes the leaf unit 2, the spindle 4 and the ring unit 5, except that: the second embodiment comprises two kit units 3.

In the embodiment, the first sheet 21 is in a shape of a letter 21274, and the second sheet 22 is arranged between the first sheets 21.

Referring to fig. 10, 11, 12 and 13, the sleeve unit 3 is respectively inserted into the first seat tube 211 and the second seat tube 221 from two opposite directions of the leaf unit 2 along the axis X direction, and rotates synchronously with the first leaf 21. Each kit unit 3 includes a tube 31 inserted into the first seat tube 211 and the second seat tube 221, a torsion spring 32 inserted into the tube 31, an end piece 33 rotatably engaged with the tube 31, two washers 34, and a limit bolt 35. The pipe 31 has a first pipe section 311 and a second pipe section 312 which are mutually engaged. The first tube segment 311 has a tooth notch 3111 formed on the inner surface, two fitting blocks 3112 extending from the end portion in a direction parallel to the axis X, and two outer flat surfaces 3113 formed on the outer surface and abutting against the inner flat surface 2111 of the corresponding first seat tube 211. The second pipe section 312 has two caulking grooves 3121 extending from the end portion in a direction parallel to the axis X and butt-fitted with the fitting block 3112, and two outer flat surfaces 3122 formed on the outer surface and abutting against the inner flat surfaces 2111 of the corresponding first seat pipe 211. The torsion spring 32 has two

end portions

321, 322, two end coils 323 connected to the

end portions

321, 322, and a middle coil 324 connected between the end coils 323. Each set of end coils 323 has at least two or more turns of tightly wound coils each separated by a first gap D1. The middle coil 324 has a plurality of turns each separated by a second gap D2. The first gap D1 is less than the second gap D2. The end piece 33 has a hexagonal hole 331 formed in one end surface and exposed to the outside of the pipe member 31, a recess 332 formed in the outer circumferential surface, a ring tooth 333 engaged with the tooth groove 3111 of the first pipe segment 311, and a groove 334 formed in the outer circumferential surface and into which the end 321 of the torsion spring 32 is inserted to be interlocked. After a hand tool (not shown) is fitted into the hexagonal hole 331, the torsion force of the torsion spring 32 can be changed by twisting the torsion spring 32 through the change of the rotation angle and the change of the engagement position of the tooth socket 3111 and the ring teeth 333. The washers 34 are respectively disposed in the opening of the second tube section 312 of the tube 31 and between the first tube section 311 and the second tube section 312 for stopping the torsion spring 32 and preventing the torsion spring 32 from being separated from the groove 334 of the end piece 33. The limiting bolt 35 is screwed into the first pipe section 311 of the pipe 31 and is inserted into the recess 332 of the end piece 33, so that the end piece 33 is limited in the first pipe section 311 of the pipe 31.

Referring to fig. 9, 10 and 12, the mandrel 4 includes a fixing member 41 positioned in the second seat tube 221 of the second sheet 22 and rotating synchronously with the second sheet 22, and two shaft sections 42 penetrating through the sleeve unit 3 and coupled with the fixing member 41 to form a linkage. The fixing member 41 has a square bolt hole 411 and a recess 412 arranged along the axis X direction, and two grooves 413 formed on two opposite sides along the axis X direction. In this embodiment, the groove 412 is a square groove. Each shaft segment 42 is inserted between the end coil 323 and the middle coil 324 of the torsion spring 32 along the axis X, and has a stud 421 and a rim 423 forming a notch 422. The stud 421 of the shaft segment 42 is engaged with the square bolt hole 411 and the groove 412 of the fixing member 41, and the notch 422 is connected to the groove 413, so that the ends 321 and 322 of the torsion spring 32 pass through the notch 422 and are inserted into the groove 413.

Referring to fig. 9, since the second leaf 22 is disposed between the v-shaped first leaves 21, when the hinge device according to the second embodiment of the present invention is connected to the

objects

11 and 12, the required door gap size is equal to or slightly larger than the thickness of the first leaves 21, so that a door frame and a door leaf with a small gap between the door gap can be used. When the

objects

11 and 12 are connected, the first reference surface 213 of the first leaf 21, the second reference surface 223 of the second leaf 22, or the edge 111 of the object 11, or the edge 121 of the object 12 is only required to abut against, so that the plurality of hinge devices can be linearly arranged in the vertical direction and the parallel direction relative to the object 11 or the object 12, thereby avoiding position errors when the hinge devices are installed, and improving the smoothness when the door leaf rotates.

Referring to fig. 9, 14 and 15, when the first leaf 21 is driven by external force to rotate around the axis X to open the door, the first leaf 21 drives the tube 31 of the kit unit 3 synchronously through the first seat tube 211, so that the tube 31 drives the end piece 33 to twist the end 321 of the torsion spring 32 synchronously during rotation, and when the second seat tube 221 of the second leaf 22 and the fixing piece 41 are fixed together with the end 322 of the torsion spring 32, the end coil 323 and the middle coil 324 of the torsion spring 32 rotate in the pressure accumulation direction, and generate trigger force capable of resisting the external force and being accumulated.

Therefore, when the external force is released, the torsion spring 32 releases the trigger force, and can provide an added restoring torsion force when the door is closed, so that the pipe 31 of the kit unit 3 and the first leaf 21 rotate in opposite directions.

For example, if the restoring force generated by each torsion spring 32 is 90Kg, the two torsion springs 32 of the two kit units 3 of the present embodiment can generate a trigger force (restoring torsion) of 90Kg +90 Kg-180 Kg after the external force is released, and is suitable for heavy doors. It should be noted that, in addition to the effect of adding the aforementioned restoring torsion, the present embodiment can further increase the torsion without changing the overall length of the torsion spring 32 by a special design that the first gap D1 of the end coil 323 of the torsion spring 32 is smaller than the second gap D2 of the middle coil 324, and taking the end coil 323 of each torsion spring 32 as a 3-turn tight coil as an example, the torsion springs with the same gap can generate 15Kg more trigger force (restoring torsion force) per one rotation of one scale, and then one torsion spring 32 of the present invention can generate 15 × 3 to 45Kg trigger force (restoring torsion force) per one rotation of one scale, thereby, when the end piece 33 drives the torsion spring 32 to rotate 1 more scale through the hexagonal hole 331, for example, when scale 1 rotates to scale 2, the torsion spring 32 of the present invention can generate the trigger force (return torsion force) of 15 × 3 × 2 — 90Kg, when the scale 2 rotates to the scale 3, the torsion spring 32 of the present invention can generate the trigger force (return torsion force) of 15 × 3 — 135Kg, and when the scale 3 rotates to the scale 4, the torsion spring 32 of the present invention can generate the trigger force (return torsion force) of 15 × 3 × 4 — 180 Kg. Therefore, a 300Kg heavy door originally needs three hinge devices to push, but the invention can push only by using a second embodiment (180Kg × 2 — 360 Kg).

Since the hinge device of the present invention has no directional limitation during installation, when the second leaf 22 is driven by external force to rotate around the axis X to open the door, the second leaf 22 will synchronously drive the fixing member 41 of the mandrel 4 through the second seat tube 221, so that the fixing member 41 synchronously drives the shaft section 42 to twist the end 322 of the torsion spring 32 during rotation, and under the condition that the first seat tube 211 of the first leaf 21, together with the end piece 33, and the end 321 of the torsion spring 32 are fixed, the end coil 323 and the middle coil 324 of the torsion spring 32 can also rotate in the pressure accumulation direction, and generate a trigger force capable of resisting the external force and accumulating.

Thereby, when the external force is released to close the door, the torsion spring 32 releases the trigger force, and can provide an added restoring torsion force to rotate the tube 31 of the kit unit 3 and the first leaf 21 in the opposite direction when the door is closed.

It should be noted that, since the first gap D1 of the three close end coils 323 of the torsion spring 32 is smaller than the second gap D2 of the middle coil 324, the torsion spring 32 can increase the expected torsion value by a factor to increase the trigger force (restoring torsion).

In addition, only by rotating the end piece 33 of the kit unit 3 with a tool (not shown), the end piece 33 twists the torsion spring 32 to a predetermined angle, so as to increase or decrease the torsion of the torsion spring 32, thereby achieving the purpose of controlling the door closing force, and further improving the smoothness of the door closing.

Referring to fig. 16, a third embodiment of the present invention is substantially the same as the previous embodiments, and mainly includes assembling the sleeve unit 3 and the sleeve unit 7 with the sheet unit 2, the mandrel 4, and the ring unit 5.

Therefore, when the first blade 21 or the second blade 22 is driven by an external force to rotate around the axis X to open the door, the operation principle and the efficacy of the kit unit 3 can be referred to the second embodiment, and the operation principle and the efficacy of the kit unit 7 can be referred to the first embodiment.

When the external force is released, the torsion spring 32 of the kit unit 3 also releases the aforementioned trigger force, so as to provide a restoring torsion force when the door is closed, so that the tube 31 of the kit unit 3, the tube 71 of the kit unit 7, the friction member 73 and the first leaf 21 rotate in opposite directions. Additional details will not be set forth in order to provide those skilled in the art with a understanding of the above description.

Referring to fig. 17, a fourth embodiment of the present invention is substantially the same as the previous embodiments, and mainly includes the assembly of the sleeve unit 3, the sleeve unit 6, the leaf unit 2, the mandrel 4, and the ring unit 5.

Therefore, when the first leaf 21 or the second leaf 22 is driven by external force to rotate around the axis X to open the door, the operation and efficacy of the kit unit 3 can be referred to the second embodiment, and the operation and efficacy of the kit unit 6 can be referred to the first embodiment. Additional details will not be set forth in order to provide those skilled in the art with a understanding of the above description.

Referring to fig. 18, another aspect of the cartridge unit 6 described in the previous embodiment is illustrated. The kit unit 6 does not include the distal end operator 63 shown in fig. 4, but similarly includes a tube 61 inserted through the first and

second seat tubes

211 and 221 and interlocked with the first seat tube 211, an oil hydraulic module 62 inserted through the tube 61, a proximal end operator 64 inserted through the tube 61 and interlocked with the tube 61, and an end fitting 65 enclosing one end of the tube 61.

Therefore, when the tube 61 is driven, the proximal acting element 64 will press the proximal matching surface 434 of the shaft segment 43 by the proximal slope 641 during the rotation process, so that the shaft segment 43 pushes the top pin 622 to press the hydraulic cylinder 621, and the pressing surface 432 compresses the elastic element 623, thereby generating the trigger force against the external force. Or when the fixing member 41 is driven, the shaft segment 43 is synchronously driven, so that the shaft segment 43 is pushed against the proximal inclined surface 642 of the proximal acting element 64 by the proximal engaging surface 434, the ejector pin 622 is pushed to press the ejector pin 6213 of the oil cylinder 621 to retract to generate buffering resistance, and the pressing surface 432 is used to compress the elastic element 623 to generate triggering force resisting the external force. Similarly, additional details will not be set forth, as those skilled in the art will appreciate the above description with the understanding that the present disclosure is to be considered an exemplification of the principles of the invention.

Referring to fig. 19 and 20, a fifth embodiment of the present invention is substantially the same as the first embodiment, and mainly includes the assembly of the sleeve unit 6, the sleeve unit 7, the leaf unit 2, the mandrel 4, and the ring unit 5. The difference lies in that:

the fixing member 41 can be turned up and down by 180 degrees and assembled with the shaft section 44 through the opening below the second seat tube 221 of the second leaf 22. Therefore, the square bolt hole 411 of the fixing member 41 can be engaged with the bolt of the shaft section 43 to form an interlocking action, and the shaft section 44 can be engaged with the bolt 431 of the shaft section 43 through the bolt hole 440 and can be in frictional contact with the friction curved surface 732 of the corresponding friction member 73 through the convex portion 442.

Referring to fig. 21 and 22, a sixth embodiment of the present invention is substantially the same as the second embodiment, and mainly the sleeve unit 3 is assembled with the sheet unit 2, the mandrel 4 and the ring unit 5. The difference lies in that:

the fixing member 41 can be turned up and down by 180 degrees and assembled through the opening below the second seat tube 221 of the second sheet 22. Therefore, the fixing member 41 can also be coupled and linked by the square bolt hole 411, the groove 412 and the bolt 421 of the shaft segment 42, and the groove 413 is connected to the notch 422 of the shaft segment 42, so that the ends 321 and 322 of the torsion spring 32 pass through the notch 422 and are inserted into the groove 413.

Referring to fig. 23 and 24, each of the spacing groups 52 of the ring unit 5 is not limited to have only one spacing ring 521, and may also have two spacing rings 521, and the ring walls 522 of the two spacing rings 521 of each spacing group 52 are inserted into the adjacent first seat pipe 211 and the second seat pipe 221, so that the ring edges 523 of the two spacing rings 521 are adjacent to and blocked between the first seat pipe 211 and the second seat pipe 221.

Thereby, the collar 51 may be a Polyoxymethylene (POM) or teflon (PTFE) material for improving the lubrication between the first seat tube 211, the second seat tube 221 and the

tube members

61, 71 of the

kit units

6, 7 and reducing the resistance. The spacer set 52 is made of a metal material, such as an aluminum material, which can reduce the friction coefficient, improve the wear resistance, and reduce the wear, and the annular edge 523 exposed between the first seat tube 211 and the second seat tube 221, and the first seat tube 211 and the second seat tube 221 are made of a metal material, which tends to be consistent in texture and visual effect, so as to further improve the overall aesthetic property.

Referring to fig. 25, another aspect of the kit unit 3 in the second, third, fourth and sixth embodiments is described. Wherein:

the shaft section 42 of the spindle 4 also has a square stud 424 opposite the stud 421 and which is able to rotate together in register with the end piece 33.

The kit unit 3 further comprises an auxiliary spring 36, and a slider 37.

And the end piece 33 further has a slope 335 formed on the other end surface opposite to the hexagonal hole 331.

The auxiliary spring 36 is inserted between the torsion spring 32 and the shaft section 42.

The slider 37 is urged against an end of the auxiliary spring 36, is displaceable along the axis X relative to the end piece 33, and has a square bolt hole 371 which is rotatably fitted to the square bolt 424, and a reverse inclined surface 372 facing the inclined surface 335.

As shown in fig. 26 and 27, when the end piece 33 is synchronously rotated by the first seat tube 211 via the tube 31, or when the shaft segment 42 is synchronously rotated by the second seat tube 221 via the fixing member 41, the inclined surface 335 of the end piece 33 and the reverse inclined surface 372 of the sliding block 37 are pushed against each other, and under the condition that the position of the end piece 33 along the axis X is unchanged, the sliding block 37 is made to press the auxiliary spring 36 along the axis X in the direction opposite to the end piece 33, so as to generate the trigger force capable of being stored, and after the external force driving the first leaf 21 or the second leaf 22 (not shown) is released, the torsion spring 32 and the auxiliary spring 36 are made to release the trigger force, thereby providing an additive restoring torsion force when the door is closed, at which the sliding block 37 is acted by the restoring torsion force of the torsion spring 32 and the auxiliary spring 36, along this axis X, in the direction of the end piece 33, until the counter-inclined surface 372 engages with the inclined surface 335.

From the above description, the advantages of the foregoing embodiments can be summarized as follows:

1. the present invention uses the separated spindle 4 to replace

different spindle segments

42, 43, 44, and is suitable for the kit unit 3, the kit unit 6, or the kit unit 7 according to the use requirement, so as to not only achieve the modular design, reduce the assembly cost, but also greatly improve the assembly simplicity.

2. The collar 5 inserted between the first seat tube 211, the second seat tube 221, and the kit unit 3, or the kit unit 6, or the kit unit 7 can block the metal elements, thereby improving the lubrication degree and reducing the resistance and wear.

3. The special design of the torsion spring 32 with the higher density of the end coils 323 can increase the expected torsion value multiple, and meet the requirement, not only can improve the trigger force (restoring torsion), but also can not cause the situation of too small torsion.

4. In addition, since the first leaf 21 in the shape of a v 21274can accommodate the second leaf 22, the required door gap size corresponds to the thickness of the first leaf 21, and a door frame and a door leaf with a small door gap can be applied.

5. Furthermore, when the

objects

11 and 12 are connected, the first reference surface 213 of the first sheet 21, the second reference surface 223 of the second sheet 22, or the edge 111 of the object 11, or the edge 121 of the object 12 is only required to abut against, so that the plurality of hinge devices can be linearly arranged in the vertical direction and the parallel direction with respect to the object 11 or the object 12, thereby preventing the position error of the hinge devices during installation, and improving the smoothness of door rotation.

The above description is only an example of the present invention, and the scope of the present invention should not be limited thereby, and the invention is still within the scope of the present invention by simple equivalent changes and modifications made according to the claims and the contents of the specification.

Claims

1. A hinge device for connecting two objects, the hinge device comprising:

the blade unit comprises a first blade and a second blade, wherein the first blade and the second blade can be operated to bear external force to rotate, the first blade is provided with at least one first seat pipe, and the second blade is provided with at least one second seat pipe which is arranged at intervals along the axial direction with the first seat pipe;

the two external member units penetrate through the first seat pipe and the second seat pipe from two opposite directions of the leaf unit along the axis direction respectively and rotate synchronously with the first leaf; and

the method is characterized in that:

2. The hinge device of claim 1, wherein: the first sheet is also provided with a first attaching surface connected with the corresponding article, and a first datum surface which is formed on the first attaching surface along the direction parallel to the axis and protrudes out of the first attaching surface, and the edge of the corresponding article is supported by the first datum surface.

3. The hinge device according to claim 1 or 2, wherein: the second sheet is also provided with a second attaching surface connected with the corresponding article, and a second datum surface which is formed on the second attaching surface along the direction parallel to the axis and protrudes out of the second attaching surface, and the edge of the corresponding article is abutted by the second datum surface.

4. The hinge device of claim 1, wherein: the first sheet is in a shape of a letter 21274, and the second sheet is arranged among the first sheets.

5. The hinge device of claim 1, wherein: the hinge device further comprises a ring unit, wherein the ring unit comprises a plurality of lantern rings and a plurality of spacing groups, the lantern rings penetrate between the sleeve unit and the second seat tube, each spacing group is provided with at least one spacing ring, and each spacing ring is provided with a ring wall penetrating at least one of the first seat tube and the second seat tube which are adjacent to each other and a ring edge obstructing between the first seat tube and the second seat tube.

6. The hinge assembly of claim 5, wherein: the first sheet, the second sheet and the at least one spacing ring are made of metal materials, and the lantern ring can be made of a polyurethane material or a teflon.

7. The hinge device of claim 1, wherein: one of the kit units comprises a pipe fitting which is arranged in the first seat pipe and the second seat pipe in a penetrating manner and is in linkage with the first leaf, a brake spring set arranged in the pipe fitting in a penetrating manner, a friction piece which is forced by the brake spring set and is in linkage with the pipe fitting, and an end piece which is screwed with the pipe fitting and is forced to abut against the brake spring set to change the trigger force, wherein the friction piece is provided with a friction curved surface in friction contact with a corresponding shaft section, when the external force acts on the first leaf or the second leaf, the friction curved surface of the friction piece is in mutual friction contact with the shaft section, the friction resistance which is used as the trigger force is generated through the friction piece, and the curvature position of the friction curved surface is used for controlling the first leaf or the second leaf to generate the friction resistance effect when the angle is preset.

8. The hinge assembly of claim 7, wherein: the fixing piece of the mandrel is provided with a square bolt hole extending along the axial direction and a groove, the square bolt hole is sleeved with a bolt post of one shaft section, the other shaft section adjacent to the friction piece is provided with two convex parts facing the friction piece and in friction contact with the friction piece, and the bolt post is clamped with the groove of the fixing piece.

9. The hinge assembly of claim 7, wherein: the other one of the kit units comprises a tube penetrating the first and second seat tubes, a torsion spring penetrating the tube of the other kit unit and surrounding the corresponding shaft section of the mandrel, and an end piece rotatably engaged with the tube and rotating the torsion spring to change the magnitude of the trigger force, wherein the torsion spring has two ends connected to the end piece and the corresponding shaft section, when the external force acts on the first or second leaf, the end piece or the corresponding shaft section twists the torsion spring to generate and store the trigger force, and when the stored trigger force is released, the stored trigger force is used for driving the first or second leaf to rotate reversely.

10. The hinge assembly of claim 7, wherein: the other one of the kit units comprises a pipe fitting which is penetrated in the first seat pipe and the second seat pipe and is interlocked with the first sheet, an oil pressure module which is penetrated in the pipe fitting of the other kit unit, a near-end acting piece which is penetrated in the pipe fitting and is interlocked with the pipe fitting, and an end piece which is used for packaging one end of the pipe fitting, wherein the oil pressure module is provided with an oil pressure cylinder, a top pin and an elastic element which are pressed and abutted between the oil pressure cylinder and a shaft section corresponding to the mandrel, the near-end acting piece is provided with a near-end inclined plane opposite to the fixing piece, a through hole for the shaft section corresponding to the mandrel to penetrate through, the shaft section penetrating through the through hole is also provided with a pressing surface which is pressed and abutted between the top pin of the oil pressure module and the elastic element, and a near-end conjunction surface facing to the near-end inclined plane, when the external force acts on the first sheet or the second sheet, the near-end fit surface and the near-end inclined surface are pushed to be away from each other and are pressed to abut against the oil pressure module to generate the trigger force.

11. The hinge device of claim 1, wherein: one of the kit units comprises a pipe fitting penetrating through the first seat pipe and the second seat pipe and forming linkage with the first sheet, an oil pressure module penetrating through the pipe fitting, a near-end acting piece penetrating through the pipe fitting and forming linkage with the pipe fitting, and an end piece encapsulating one end of the pipe fitting, wherein the oil pressure module is provided with an oil pressure cylinder, a top pin and an elastic element which are pressed and abutted between shaft sections corresponding to the oil pressure cylinder and the mandrel, the near-end acting piece is provided with a near-end inclined plane opposite to the fixing piece, a through hole for the shaft section corresponding to the mandrel to penetrate through, a shaft section penetrating through the through hole is also provided with a pressing surface which is pressed and abutted against the top pin and the elastic element of the oil pressure module, and a near-end engagement surface facing the near-end inclined plane, and when the external force acts on the first sheet or the second sheet, the near-end engagement surface and the near-end inclined plane are mutually pushed and away from each other, and forcibly abutting the oil pressure module to generate the trigger force.

12. The hinge device according to claim 10 or 11, wherein: the shaft section penetrating through the near-end acting element is also provided with a far-end fit surface opposite to the near-end fit surface, a far-end acting element is arranged between the oil hydraulic cylinder and the shaft section penetrating through the near-end acting element, the far-end acting element is provided with a far-end inclined surface facing the far-end fit surface, and when the external force acts on the first leaf or the second leaf, the near-end fit surface and the near-end inclined surface are pushed mutually, and the far-end fit surface and the far-end inclined surface are fit mutually, so that the shaft section is pressed against the oil hydraulic module to generate the trigger force.

13. The hinge device according to claim 10 or 11, wherein: the oil pressure cylinder is screwed with the corresponding pipe fitting and is provided with a hexagonal setting hole and a hexagonal throttling hole, the hexagonal setting hole extends from the top surface along the axis, the hexagonal setting hole is used for adjusting the screwing depth of the oil pressure cylinder after a tool is embedded into the hexagonal setting hole and is used for setting the angle range of an oil pressure buffer zone when the corresponding object rotates, and the hexagonal throttling hole is used for adjusting the flowing speed of the internal oil pressure after another tool is embedded into the hexagonal throttling hole.

14. The hinge assembly of claim 11, wherein: the other one of the kit units comprises a tube penetrating the first and second seat tubes, a torsion spring penetrating the tube of the other kit unit and surrounding the corresponding shaft section of the mandrel, and an end piece rotatably engaged with the tube and rotating the torsion spring to change the magnitude of the trigger force, wherein the torsion spring has two ends connected to the end piece and the corresponding shaft section, when the external force acts on the first or second leaf, the end piece or the corresponding shaft section twists the torsion spring to generate and store the trigger force, and when the stored trigger force is released, the stored trigger force is used for driving the first or second leaf to rotate reversely.

15. The hinge device of claim 1, wherein: each kit unit comprises a pipe member penetrating through the first seat pipe and the second seat pipe, a torsion spring penetrating through the pipe member and surrounding the corresponding shaft section of the mandrel, and an end member rotatably engaged with the pipe member and rotating the torsion spring to change the magnitude of the trigger force, wherein the torsion spring has two end parts connected with the end member and the corresponding shaft section, when the external force acts on the first leaf or the second leaf, the end member or the corresponding shaft section twists the torsion spring to generate and store the trigger force, and the stored trigger force is used for driving the first leaf or the second leaf to rotate reversely after being released.

16. Hinge device according to claim 9 or 14 or 15, characterized in that: the torsion spring is also provided with two groups of end coils connected to the end part and a middle coil connected between the end coils, each group of end coils is provided with at least two circles of tight coils which are respectively separated by a first gap, the middle coil is provided with a plurality of circles of coils which are respectively separated by a second gap, and the first gap is smaller than the second gap, so that the torsion generated by the end coils is larger than the torsion generated by the middle coil.

17. Hinge device according to claim 9 or 14 or 15, characterized in that: the shaft section surrounded by the torsion spring is provided with a square bolt column which is sleeved with the end piece and can rotate together, the kit unit penetrated with the torsion spring further comprises an auxiliary spring and a sliding block, the end piece is provided with an inclined surface, the auxiliary spring is arranged between the torsion spring and the corresponding shaft section in a penetrating mode, the sliding block is pressed against the end portion of the auxiliary spring and used for being displaced along the axis relative to the end piece, and the kit unit is provided with a square bolt hole which is sleeved with the square bolt column and can rotate together and a reverse inclined surface facing the inclined surface.

18. The hinge assembly of claim 15, wherein: each shaft section of the mandrel is provided with a bolt, the fixing piece is provided with a square bolt hole and a groove which are arranged along the axial direction, the square bolt hole is sleeved with one bolt, and the groove is sleeved with the other bolt.

19. The hinge assembly of claim 18, wherein: each shaft section of the spindle is also provided with a ring edge forming a notch, the fixing piece is also provided with two grooves connected with the notches of the shaft sections, and one end part of the torsion spring passes through the corresponding notch and is inserted into the corresponding groove.

20. The hinge device of claim 1, wherein: the first seat tube is provided with two inner planes formed on the inner surface, each kit unit comprises a pipe fitting penetrating between the first sleeve and the second sleeve, and the pipe fitting is provided with two outer planes which are formed on the outer surface and abut against the inner planes of the first seat tube to form linkage with the first seat tube.

21. The hinge assembly of claim 20, wherein: at least one pipe fitting of the kit unit is also provided with a first pipe section and a second pipe section which are mutually involutory, and the involutory part of the first pipe section and the second pipe section is positioned in the first seat pipe.