Double-pressure-accumulation type hinge

Abstract

The invention provides a double-pressure-accumulation type hinge. The double-pressure-accumulation type hinge comprises a pivoting unit, two pressure accumulation assemblies and a shaft unit, wherein the pivoting unit is provided with two hinge pieces; the two pressure accumulation assemblies penetrate through and pivot the hinge pieces; the shaft unit comprises a shaft piece passing through the multiple pressure storage assemblies and a reset element set arranged between the shaft piece and the multiple pressure storage assemblies in a sleeved mode. The multiple pressure storage assemblies can press the reset element sets and twist the reset element sets, so that the reset element sets generate elastic force for driving the corresponding blades to rotate reversely. Therefore, through a simplified structure, the purposes of being free of direction limitation in installation and improving door closing force are achieved.

Description

Double pressure storage hinge Technical Field

[0001] The present invention relates to a hinge, in particular to a double pressure-accumulating hinge. Background Art

[0002] Taking the hinge device disclosed in FIG. 15 of Taiwan Patent No. I654363 as an example, the hinge device mainly utilizes a double torsion spring design to generate an additive restoring force, making it suitable for heavier door panels.

[0003] However, Taiwan Patent No. I654363 can only force the multiple torsion springs to generate a restoring force by twisting them. Furthermore, the design, coupled with the unrestricted installation direction, results in a complex axial structure. Therefore, how to force the multiple torsion springs to generate a greater restoring force within a limited space and simplify the overall structure became technical challenges that the applicant of this case was eager to overcome.

[0004] Summary of the Invention

[0005] Therefore, the object of the present invention is to provide a double pressure-accumulating hinge with a simple structure and no directional restrictions on installation.

[0006] Therefore, the dual pressure-accumulating hinge of the present invention includes a pivot unit, two pressure-accumulating components, and an axis unit.

[0007] The pivot unit includes two plates, each of which has a sleeve. The sleeves are arranged along an axis and define a channel around the axis.

[0008] The multiple pressure storage assemblies are arranged in the pipeline along the axial direction, and each of the pressure storage assemblies includes a first sleeve that rotates together with one of the pages, a second sleeve that is rotatably sleeved on the first sleeve, and a pressure storage module arranged between the first sleeve and the second sleeve. One of the second sleeves of the multiple pressure storage assemblies rotates together with another of the pages, and the pressure storage module of one of the pressure storage assemblies has a pressure storage sleeve and a pressure storage slider. The pressure storage sleeve is connected to the first sleeve of one of the pressure storage assemblies and has an inclined surface. The pressure storage slider is pressed against the pressure storage sleeve and the second sleeve of one of the pressure storage assemblies and has a reverse inclined surface that can fit with the inclined surface. The pressure storage module of the other pressure storage assembly has a ratchet piece, which is movably and rotatably sleeved on the first sleeve of the other pressure storage assembly and can be disengaged from the first sleeve of the other pressure storage assembly.

[0009] The shaft unit includes a shaft member that is movably inserted between the multiple pressure storage components along the axial direction, and a restoring element group arranged between the shaft member and the multiple pressure storage components. The shaft member is sleeved on the pressure storage slider and the second sleeve of the other pressure storage component and rotates together with the pressure storage slider and the second sleeve of the other pressure storage component. The restoring element group is pressed between the pressure storage slider and the ratchet member and can be twisted by the corresponding second sleeve.

[0010] Thereby, when one of the pages drives the multiple first sleeves and the pressure accumulation sleeve to rotate, or the other page drives the corresponding second sleeve and the shaft to rotate, the inclined surface of the pressure accumulation sleeve and the reverse inclined surface of the pressure accumulation slider will push each other, and the return element group will be compressed by the pressure accumulation slider and twisted by the corresponding second sleeve, thereby generating an elastic force that drives the corresponding page to rotate.

[0011] The present invention achieves this by compressing and twisting the restoring element assembly through the multiple pressure accumulators, generating a spring force that drives the corresponding leaf to rotate in the opposite direction. This streamlined structure achieves unrestricted installation and enhanced closing force.

[0012] The double pressure-accumulating hinge, wherein the first sleeve of each pressure-accumulating assembly has two first notches spaced apart and extending from one end face along the axial direction; the second sleeve of each pressure-accumulating assembly has a rotating portion sleeved on the first sleeve, and a limiting portion opposite to the rotating portion; the pressure-accumulating sleeve has two convex portions spaced apart and formed on the circumferential surface; the multiple convex portions of the pressure-accumulating sleeve correspond to the multiple first notches of the first sleeve; and the shaft member can rotatably pass through the pressure-accumulating sleeve.

[0013] The double pressure-accumulating hinge, wherein the sleeve of the other leaf also has two engaging portions protruding from the inner surface, the rotating portion of the second sleeve of the other pressure-accumulating assembly has two second notches extending from an end face opposite to the rotating portion along the axial direction and engaged with the multiple engaging portions, and a rectangular hole formed on the end face, the pressure-accumulating slider has a rectangular hole extending from one end face along the axial direction to the other end face, the cross-section of the shaft is rectangular, and is fitted into the multiple rectangular holes.

[0014] The double pressure accumulator hinge, wherein the shaft member has a first shaft section and a second shaft section opposite to the first shaft section, the first shaft section is rotatably inserted into the ratchet member, the second shaft section has a rectangular cross-section, and is sleeved on the rectangular hole of the second sleeve of the other pressure accumulator component and the rectangular hole of the pressure accumulator slider, and rotates together with the second sleeve of the other pressure accumulator component and the pressure accumulator slider.

[0015] The double pressure-accumulating hinge, wherein the return element group has a compression spring and a torsion spring, the compression spring is pressed between the second sleeve of one of the pressure-accumulating components and the pressure-accumulating slider, the torsion spring is arranged between the ratchet part and the second sleeve of the other pressure-accumulating component, and has two opposite ends, and the multiple ends are connected to the ratchet part and the second sleeve of the other pressure-accumulating component.

[0016] The double pressure-accumulating hinge, wherein the shaft unit further includes an action member and at least one bolt member, the action member is mounted on the second sleeve of one of the pressure-accumulating assemblies, and has two spaced-apart high grooves, two low grooves spaced apart from the multiple high grooves along the axial direction, and two spaced-apart convex portions formed on the circumferential surface, the multiple convex portions correspond to the multiple second notches of the second sleeve of one of the pressure-accumulating assemblies, the at least one bolt member is connected to the shaft member, and can roll against the action member, and can sink into the multiple high grooves or the multiple low grooves.

[0017] The dual pressure-accumulating hinge, wherein the limiting portion of the second sleeve of one of the pressure-accumulating assemblies has two second notches extending along the axial direction from an end face opposite to the rotating portion, and the active member has two convex portions spaced apart and formed on the circumferential surface, and the multiple convex portions of the active member correspond to the multiple second notches of the second sleeve of one of the pressure-accumulating assemblies.

[0018] The double pressure-accumulating hinge, wherein the second sleeve of one of the pressure-accumulating assemblies is pressed against the pressure-accumulating slider, and the limiting portion of the second sleeve of one of the pressure-accumulating assemblies also has a rectangular hole formed on the end surface, and the pressure-accumulating slider has a rectangular hole extending from one end surface along the axial direction to the other end surface, and the cross-section of the shaft is rectangular and fits into the multiple rectangular holes.

[0019] The double pressure-accumulating hinge, wherein the return element group has a torsion spring, which is arranged between the ratchet part and the second sleeve of one of the pressure-accumulating assemblies and has two opposite ends, and the multiple ends are connected to the ratchet part and the second sleeve of one of the pressure-accumulating assemblies.

[0020] The dual pressure-accumulating hinge, wherein the pressure-accumulating module of one of the pressure-accumulating components further has a pressure-adjusting bolt, which is screwed into the first sleeve of one of the pressure-accumulating components along the axial direction and applies pressure to the pressure-accumulating sleeve, and by changing the screwing depth, forces the second sleeve of one of the pressure-accumulating components to move along the axial direction.

[0021] The double pressure-accumulating hinge, wherein the shaft unit further comprises two auxiliary elastic elements, wherein one of the auxiliary elastic elements is arranged between the shaft member and the pressure-adjusting bolt, and constantly generates an elastic force causing the shaft member to move along the axial direction, and the other auxiliary elastic element is arranged between the ratchet member and the shaft member, and constantly generates an elastic force causing the shaft member to move along the axial direction.

[0022] The double pressure storage hinge, wherein the first sleeve of the other pressure storage component has a ring tooth portion forming an inner circumferential surface, the ratchet member has a sleeve portion that is sleeved on the shaft member, a driving portion that extends from the sleeve portion along the axial direction and can be operated, and a plurality of latching teeth formed on the sleeve portion and disengageably engaged with the ring tooth portion.

[0023] The double pressure storage hinge, wherein each of the pressure storage components further includes a locking bolt, and the ratchet part further has a C-shaped annular groove formed on the outer peripheral surface, the locking bolt is screwed into the respective leaves in a direction perpendicular to the axis and inserted into the respective first sleeves, and the locking bolt of the other pressure storage component further has an extension portion, which can be detachably inserted into the annular groove of the ratchet part. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a perspective view illustrating a first embodiment of a double spring hinge according to the present invention;

[0025] FIG2 is an exploded perspective view of the first embodiment;

[0026] FIG3 is an exploded perspective view of a pressure accumulator assembly in the first embodiment;

[0027] FIG4 is an exploded perspective view of another pressure accumulator assembly in the first embodiment;

[0028] FIG5 is a fragmentary cross-sectional view illustrating the assembly of the plurality of pressure accumulator assemblies along an axial direction;

[0029] FIG6 is a cross-sectional view of the first embodiment;

[0030] FIG7 is a cross-sectional view of the first embodiment taken from another angle;

[0031] FIG8 is a cross-sectional view similar to FIG7 , but with a compression spring compressed and a torsion spring twisted;

[0032] FIG9 is a cross-sectional view similar to FIG7 , but with the first sleeves being different;

[0033] FIG10 is a schematic diagram illustrating the angular range of the restoring force generated by the first embodiment;

[0034] FIG11 is an incomplete exploded perspective view illustrating the changes of the two pressure accumulator modules and an operating member according to the first embodiment;

[0035] FIG12 is an incomplete exploded perspective view similar to FIG11 , but with the first shaft hole and the second notch at different angles;

[0036] FIG13 is an exploded perspective view illustrating a second embodiment of a double-spring hinge according to the present invention;

[0037] FIG14 is a cross-sectional view of the second embodiment; and

[0038] FIG15 is a cross-sectional view of the second embodiment taken from another angle.

[0039] Legend:

[0040] <The present invention> 11: Door leaf 12: Fixed surface 2: Pivot unit 20: Pipe 21: First leaf 211: First sleeve 212: Reinforcement portion 22: Second leaf 221: Second sleeve 222: Fitting portion 23: Spacer ring 231: Spacer ring protrusion 24: Ring buckle 3: Pressure storage assembly 3a: Pressure storage unit 3b: Torsion storage unit 31: First sleeve 311: First notch 312: Perforation 313: Ring tooth portion 32: Second sleeve 321: Rotating portion 322: Limiting portion 323: Second notch 324: Rectangular hole 33: Locking pin 34: Locking bolt 341: Extension portion 35: Pressure storage module 3511: Inclined surface 3512: Protrusion 3543: Gear 3544 : Annular groove 351: Pressure accumulator sleeve 352: Pressure accumulator slider 3521: Reverse slope 3522: Rectangular hole 353: Pressure regulating bolt 354: Ratchet 3541: Socket joint 3542: Driving part 36: Washer 4: Shaft unit 411: First shaft section 412: Second shaft section 413: Shaft hole 42: Action member 421: Protrusion 422: High groove 423: Low groove 424: Rib 43: Bolt 44: Pressing member 441: Rectangular hole 45: Annular gasket 451: Protrusion 46: Restoring element assembly 461: Compression spring 462: Torsion spring 463: End 464: Torsion spring 465: End 47: Auxiliary elastic element X: Axis 41: Shaft DETAILED DESCRIPTION

[0041] Referring to Figures 1 and 2 , a first embodiment of a dual-pressure-accumulation hinge according to the present invention is suitable for connecting a door leaf 11 to a fixed surface 12. Fixed surface 12 can be a door frame, a wall, or the ground. The dual-pressure-accumulation hinge comprises a pivot unit 2, two pressure-accumulation assemblies 3, and an axis unit 4.

[0042] The pivot unit 2 includes a first leaf 21 and a second leaf 22 that are pivotally connected to each other and can be operated to rotate under an external force, two spacer rings 23 , and two buckles 24 .

[0043] The first leaf 21 has two first sleeves 211 surrounding an axis X and spaced apart along the axis X, and a reinforcing portion 212 connecting the first sleeves 211 .

[0044] The second leaf 22 has a second sleeve 221 that surrounds the axis X and is inserted between the first sleeves 211. The second sleeve 221 and the first sleeves 211 define a channel 20 extending along the axis X (see FIG6 ) and has two equiangularly distributed engaging portions 222 protruding from the inner surface.

[0045] The plurality of spacer rings 23 are sleeved between the plurality of first sleeves 211 and the second sleeve 221 . Referring to FIG. 2 , the plurality of spacer rings 23 further include a spacer ring protrusion 231 . The spacer ring protrusion 231 is disposed in the first sleeve 211 or in the second sleeve 221 .

[0046] The ring buckles 24 are embedded in the inner surfaces of the first sleeves 211 .

[0047] 3 to 6 , the plurality of pressure accumulator assemblies 3 are disposed within the pipe 20 along the axis X. Each pressure accumulator assembly 3 includes a first sleeve 31 that rotates together with the plurality of first sleeves 211 of the first leaf 21, a second sleeve 32 rotatably sleeved on the first sleeve 31, two locking pins 33, a locking bolt 34, and a pressure accumulator module 35 disposed between the first sleeve 31 and the second sleeve 32.

[0048] The first sleeve 31 has two first notches 311 spaced apart from each other and extending from the end surface along the axis X direction, and a through hole 312 extending from the outer surface along the direction perpendicular to the axis X direction.

[0049] The second sleeve 32 has a rotating portion 321 rotatably sleeved on the first sleeve 31, and a limiting portion 322 opposite to the rotating portion 321. The limiting portion 322 has two second notches 323 spaced apart and extending from one end surface along the axis X direction.

[0050] The plurality of locking pins 33 pass through the corresponding first sleeves 211 along a direction perpendicular to the axis X and are inserted into the first sleeve 31 .

[0051] The locking bolts 34 are screwed into the respective first sleeves 211 along a direction perpendicular to the axis X and inserted into the through holes 312 of the first sleeve 31 .

[0052] In order to make it easier to understand the differences between the multiple pressure accumulator assemblies 3, it is further distinguished that one of the pressure accumulator assemblies 3 is a pressure accumulator unit 3a, and the other pressure accumulator assembly 3 is a torque-pressure accumulator unit 3b.

[0053] The pressure storage module 35 of the pressure storage unit 3 a includes a pressure storage sleeve 351 , a pressure storage slider 352 , and a pressure regulating bolt 353 .

[0054] The pressure accumulator sleeve 351 is mounted on the first sleeve 31 of the pressure accumulator unit 3a and has an inclined surface 3511 facing the second sleeve 32 of the pressure accumulator unit 3a, and two spaced-apart protrusions 3512 formed on its circumference. The protrusions 3512 align with the first notches 311 of the first sleeve 31 of the pressure accumulator unit 3a, rotating together with the first sleeve 31 of the pressure accumulator unit 3a.

[0055] The pressure storage slider 352 is installed between the first sleeve 31 of the pressure storage unit 3a and the second sleeve 32 of the pressure storage unit 3a, and has a reverse inclined surface 3521 facing the first sleeve 31 of the pressure storage unit 3a and capable of fitting with the inclined surface 3511, and a rectangular hole 3522 extending from one end face to the other end face along the axis X direction.

[0056] The pressure-adjusting bolt 353 is threadedly engaged with the first sleeve 31 of the pressure accumulator unit 3a along the axis X and abuts against the pressure-accumulator sliding sleeve 351. By varying the depth of the threaded engagement, the pressure-adjusting bolt 353 pushes the pressure-accumulator sliding sleeve 351 and the pressure-accumulator slider 352, thereby forcing the second sleeve 32 of the pressure accumulator unit 3a to move along the axis X.

[0057] The first sleeve 31 of the torque storage and pressure unit 3b also has a ring tooth portion 313 formed on its inner circumference. The stopper 322 of the second sleeve 32 of the torque storage and pressure unit 3b also has a rectangular hole 324 formed on its end surface. The second notch 323 of the second sleeve 32 of the torque storage and pressure unit 3b engages with the engagement portion 222 of the second sleeve 221, allowing the second sleeve 32 of the torque storage and pressure unit 3b to rotate together with the second leaf 22.

[0058] The pressure accumulator module 35 of the torque-pressure accumulator 3b includes a ratchet member 354. The ratchet member 354 is movable along the axis X and rotatably sleeved onto the first sleeve 31 of the torque-pressure accumulator 3b. The ratchet member 354 comprises a sleeve portion 3541, an operable drive portion 3542 extending from the sleeve portion 3541 along the axis X, a plurality of latching teeth 3543 formed on the sleeve portion 3541 and releasably engaged with the annular teeth 313, and a C-shaped annular groove 3544 formed between the sleeve portion 3541 and the drive portion 3542.

[0059] The locking bolt 34 of the torque storage and pressure unit 3 b has an extension portion 341 extending in a direction perpendicular to the axis X. The extension portion 341 is detachably inserted into the annular groove 3544 of the ratchet member 354 .

[0060] The shaft unit 4 includes a shaft 41 , an operating member 42 , two bolts 43 , a pressing member 44 , a plurality of annular gaskets 45 , a restoring element set 46 , and two auxiliary elastic elements 47 .

[0061] The shaft member 41 is movably positioned along the axis X between the multiple pressure accumulator assemblies 3. The shaft member 41 has a first shaft section 411 and a second shaft section 412 opposite the first shaft section 411. The first shaft section 411 is rotatably positioned within the ratchet member 354. The second shaft section 412 has a rectangular cross-section and is sheathed within the rectangular hole 324 of the second sleeve 32 of the torque and pressure accumulator unit 3b and the rectangular hole 3522 of the pressure accumulator slider 352, rotating together with the second sleeve 32 of the torque and pressure accumulator unit 3b and the pressure accumulator slider 352. The second shaft section 412 also has an axial hole 413 extending from one side to the other in a direction perpendicular to the axis X.

[0062] The operating member 42 is mounted on the second sleeve 32 of the pressure accumulator unit 3a and has two protrusions 421, two high grooves 422, and two low grooves 423. The multiple protrusions 421 are formed on the circumference of the operating member 42 and are spaced apart from each other. The multiple protrusions 421 mate with the multiple second notches 323 of the second sleeve 32 of the pressure accumulator unit 3a and rotate together with the second sleeve 32 of the pressure accumulator unit 3a. The multiple high grooves 422 are formed on one end surface facing the pressure accumulator slider 352 and are spaced apart from each other. The multiple low grooves 423 are formed on the end surface and are spaced apart from the multiple high grooves 422, and have a position difference with the multiple high grooves 422 along the axis X direction.

[0063] The bolts 43 are inserted into the shaft hole 413 of the shaft 41 in a direction perpendicular to the axis X. The bolts 43 are rollably pressed against the actuator 42 and can be sunk into the upper grooves 422 or the lower grooves 423 .

[0064] The pressing member 44 is inserted into the second sleeve 32 of the pressure accumulator unit 3a and is spaced apart from the pressure accumulator slider 352. The pressing member 44 has a rectangular hole 441 that is sleeved on the second shaft section 412, so that the pressing member 44 rotates together with the shaft member 41.

[0065] The annular gaskets 45 are mounted on the second sleeve 32 of the pressure accumulator unit 3a and positioned between the second sleeves 32. Each annular gasket 45 has two spaced-apart protrusions 451 formed on its circumference. The protrusions 451 align with the second notches 323 of the second sleeve 32 of the pressure accumulator unit 3a, allowing the annular gaskets 45 to rotate together with the second sleeve 32 of the pressure accumulator unit 3a.

[0066] The return element assembly 46 includes a compression spring 461 and a torsion spring 462. The compression spring 461 is inserted into the second sleeve 32 of the pressure accumulator unit 3a and abuts between the pressing member 44 and the pressure accumulator slider 352. The torsion spring 462 is positioned between the ratchet member 354 and the stopper 322 of the second sleeve 32 of the torque and pressure accumulator unit 3b and has two opposite ends 463. The ends 463 are connected to the ratchet member 354 and the second sleeve 32 of the torque and pressure accumulator unit 3b.

[0067] One of the auxiliary elastic elements 47 is pressed between the first shaft section 411 of the shaft 41 and the ratchet element 354 , while the other auxiliary elastic element 47 is pressed between the second shaft section 412 and the pressure-adjusting bolt 353 .

[0068] Referring to Figures 2, 6, and 8, during assembly, the preassembled pressure accumulator unit 3a and the shaft unit 4 are simply inserted into the pipe 20 from below the pivot unit 2, and the preassembled torque and pressure accumulator unit 3b is inserted into the pipe 20 from above the pivot unit 2, along the axis X. This is done until the first sleeves 31 of the pressure accumulator assemblies 3 engage with the rings 24 and abut against the first sleeves 211, thereby initially positioning them within the pipe 20. Next, each locking bolt 34 is threaded into the first sleeves 211 and inserted into the through-holes 312 of the first sleeves 31. The locking bolts 34 connect the pressure accumulator assemblies 3 to the pivot unit 2. Finally, the locking pins 33 are driven between the first sleeves 211 and the first sleeves 31. The locking pins 33 further secure the pressure accumulator assemblies 3 and the pivot unit 2.

[0069] When an external force drives the door leaf 11 to cause the second leaf 22 to rotate forward relative to the fixed surface 12 about the axis X, and rotates leftward or rightward from a closed state (0 degrees) to an open state (85 to 95 degrees), the second leaf 22 drives the shaft member 41 to rotate together via the second sleeve 32 of the torque and pressure storage unit 3b. Because the rotating portion 321 of the second sleeve 32 of the torque and pressure storage unit 3b is in an idle state with the first sleeve 31 of the torque and pressure storage unit 3b, when the first leaf 21 is not rotating, the shaft member 41 drives the pressure storage slider 352 to rotate relative to the pressure storage sleeve 351, drives the multiple bolts 43 to rotate on the operating member 42, and simultaneously drives the second sleeve 32 and the pressing member 44 of the torque and pressure storage unit 3b to rotate.

[0070] During the rotation of the pressure accumulator slider 352, the multiple bolts 43, the pressing member 44, and the second sleeve 32 of the pressure accumulator unit 3a, the pressure accumulator slider 352 pushes against the inclined surface 3511 of the pressure accumulator sleeve 351 with its reversed inclined surface 3521, thereby pushing the second sleeve 32 of the pressure accumulator unit 3a along the axis X toward the compression spring 461. Furthermore, the multiple bolts 43 frictionally contact the actuator 42, rolling from the multiple lower grooves 423 toward the multiple higher grooves 422, pushing the pressing member 44 toward the compression spring 461. This reduces the distance between the pressing member 44 and the pressure accumulator slider 352 and compresses the compression spring 461, generating a restoring force. Simultaneously, the second sleeve 32 of the torsion and pressure accumulator unit 3b twists the torsion spring 462, generating a restoring force. This combined vertical compression and lateral torsion force further enhances the restoring force.

[0071] It is worth noting that during the rolling of the multiple bolts 43, the opening speed of the door leaf 11 can be slowed down by the friction between the multiple bolts 43 and the active member 42, and when the multiple bolts 43 roll and sink into the multiple high grooves 422, the door leaf 11 can be temporarily stopped at a preset angle position.

[0072] To close the door 11, simply pull or push the door 11 gently, causing the bolts 43 on the shaft 41 to disengage from the high grooves 422 and roll toward the low grooves 423. This, through the restoring forces of the compression spring 461 and the torsion spring 462, causes the second sleeve 32 of the torque and pressure accumulator 3b and the pressure accumulator slider 352 to rotate in the opposite direction along the axis X. As the pressure accumulator slider 352 rotates, the gap between it and the pressing member 44 gradually increases. This causes the shaft 41, the second sleeve 32 of the torque and pressure accumulator 3b, and the second leaf 22 to rotate in the opposite direction. The bolts 43 then frictionally contact the actuator 42, rolling from the high grooves 422 toward the low grooves 423, thereby slowing the closing speed of the door 11.

[0073] When the pressure storage slider 352 rotates until the reverse slope 3521 fits into the slope 3511 of the pressure storage sleeve 351, and the multiple bolts 43 rotate to sink into the multiple lower grooves 423 of the action member 42, the compression spring 461 and the torsion spring 462 can be completely released, and the door leaf 11 can be stabilized in the closed state of 0 degrees.

[0074] It is worth noting that the curved surface between the plurality of high grooves 422 and the plurality of low grooves 423 of the actuator 42 controls the frictional resistance and thereby changes the rotational speed of the door 11 by varying the curvature. Furthermore, the door 11 can be temporarily stopped at a predetermined angle simply by changing the angle of the plurality of high grooves 422.

[0075] It should be noted that the present invention is not limited to achieving the buffering and door opening and closing effects by rotating the second leaf 22. In other variations of this embodiment, when an external force drives the first leaf 21 to rotate about the axis X, the first sleeves 211 may drive the first sleeves 31 to rotate. Furthermore, when the first sleeves 31 rotate idly relative to the second sleeves 32 and the second leaf 22, the second sleeves 32, and the shaft 41 are fixed, the first sleeves 31 drive the pressure accumulator sleeve 351 to rotate relative to the pressure accumulator slider 352 and the ratchet 354 to rotate relative to the shaft 41. Thus, the pressure accumulator slider 352 also pushes the inclined surface 3511 of the pressure accumulator sleeve 351 with its reverse inclined surface 3521, compressing the compression spring 461 to generate a restoring force. Furthermore, the ratchet member 354 also twists the torsion spring 462 to generate a restoring force. The combined vertical compression pressure and lateral thrust torque further enhance the restoring force, eliminating any directional restrictions during installation.

[0076] Furthermore, by using a hand tool (not shown) to rotate the pressure-adjusting bolt 353, the threaded depth between the pressure-adjusting bolt 353 and the first sleeve 31 of the pressure-accumulating unit 3a can be adjusted. This in turn pushes the second sleeve 32 of the pressure-accumulating unit 3a and the pressure-accumulating slider 352 relative to each other along the axis X, thereby increasing or decreasing the spacing between the pressure-adjusting bolt 353 and the pressing member 44 and varying the amount of compression of the compression spring 461. For example, screwing the pressure-adjusting bolt 353 approximately 1 mm deeper increases the restoring force by approximately 18.5 kg, and screwing the pressure-adjusting bolt 353 approximately 4 mm deeper increases the restoring force by approximately 75 kg.

[0077] Similarly, the ratchet member 354 is first pressed downward using a hand tool, disengaging its multiple latching teeth 3543 from the annular tooth portion 313 of the first sleeve 31 of the torque storage and pressure unit 3b. Rotating the ratchet member 354 further twists the torsion spring 462, changing its elastic force. After the hand tool releases the ratchet member 354, it is again pushed by the torsion spring 462, engaging the multiple latching teeth 3543 with the annular tooth portion 313. For example, the ratchet member 354 can rotate 360 ​​degrees, with each 36-degree rotation increasing the restoring force by approximately 18.5 kg.

[0078] It is worth noting that although the ratchet member 354 can rotate 360 ​​degrees, it is limited by the extension 341 of the locking bolt 34 of the torque storage and pressure unit 3b, and can only rotate approximately 324 degrees. The locking bolt 34 of the torque storage and pressure unit 3b must be unscrewed until the extension 341 disengages the annular groove 3544 before the ratchet member 354 can continue to rotate.

[0079] According to the above, if the compression spring 461 and the torsion spring 462 are set to generate a restoring force of about 150Kg respectively, the multiple pressure storage components 3 can generate a restoring force of about 150Kg+150Kg=300Kg after the external force is released, which is suitable for heavier doors.

[0080] It should be noted that the multiple first sleeves 31 are not limited to abutting against the multiple first sleeves 211. In other variations of this embodiment, as shown in Figure 9, two washers 36 connected to the multiple first sleeves 31 can abut against the multiple first sleeves 211.

[0081] Referring to Figures 10, 11, and 12, in addition to providing a multiplier effect on the restoring force, this embodiment also allows the angular range within which the restoring element assembly 46 can generate the restoring force to be set by adjusting the angles of the shaft hole 413 of the shaft member 41 and the second notch 323 of the second sleeve 32 of the pressure accumulator unit 3a, or by adjusting the angles at which the multiple ends 463 of the torsion spring 462 engage with the ratchet member 354 and the second sleeve 32 of the pressure accumulator unit 3b. For example, when the angle between the shaft hole 413 of the shaft member 41 and the second notch 323 of the second sleeve 32 of the pressure accumulator unit 3a changes from the first position shown in Figure 11 to the second position shown in Figure 12, which is 45 degrees away from the first position, the multiple bolts 43 inserted into the shaft hole 413 and the operating member 42 mounted on the second sleeve 32 of the pressure accumulator unit 3a will also rotate approximately 45 degrees, thereby increasing the angular range within which the compression spring 461 can generate the restoring force to 45 to 135 degrees. According to the above, in the process of pushing the door leaf 11 to open from 0 degrees to 90 degrees, the angle range of the restoring force generated by the torsion spring 462 can be set between 0 degrees and 90 degrees, and the angle range of the restoring force generated by the compression spring 461 can be set between 45 degrees and 135 degrees as shown by the solid arrow, or between -45 degrees and 45 degrees as shown by the dotted arrow, etc.

[0082] The angle between the shaft hole 413 of the shaft member 41 and the second notch 323 of the second sleeve 32 of the pressure accumulator unit 3a can be approximately 45 degrees from the first position as shown in FIG12 , or can be approximately 90 degrees or approximately 135 degrees. Of course, other angle ranges can be varied based on practical requirements and are not limited to these. Since those skilled in the art can infer the details based on the above description, no further explanation is provided.

[0083] In addition, as shown in FIG11 , the operating member 42 may further include two ribs 424 formed on the plurality of high grooves 422 . Thus, by varying the angle range of the restoring force and the design of the plurality of ribs 424 , different door opening and closing effects may be achieved. For example:

[0084] Less hold on opening: As shown in Figures 9, 10, and 11, when the door leaf 11 is opened to approximately 90 degrees, the bolts 43 rolling from the lower grooves 423 toward the upper grooves 422 on the actuator 42 are blocked by the ribs 424 and cannot be positioned in the upper grooves 422. As a result, once the external force is released, the door leaf 11 is immediately closed by the aforementioned restoring force.

[0085] Back check power: As shown in Figure 12, with reference to Figures 3 and 4, the compression spring 461 generates a restoring force at an angle ranging from 45 to 135 degrees, while the torsion spring 462 generates a restoring force at an angle ranging from 0 to 90 degrees. Thus, during the initial opening of the door, only the compression spring 461 generates a restoring force, resulting in less resistance. However, when the door leaf 11 is opened to between 45 and 90 degrees, both the compression spring 461 and the torsion spring 462 generate a restoring force, requiring the user to apply greater external force to continue pushing the door leaf 11, which increases the resistance during door opening.

[0086] Latch power: Referring to Figures 11 and 12, the compression spring 461 generates a restoring force within an angle range of -45 to 45 degrees, and the torsion spring 462 generates a restoring force within an angle range of 0 to 90 degrees. This allows both the compression spring 461 and the torsion spring 462 to generate a restoring force during initial door opening or when the door is automatically closed from 45 to 0 degrees. This requires the user to apply greater external force to push the door leaf 11, and even when the door leaf 11 is closed close to 0 degrees, a strong closing force is still maintained.

[0087] 13 , 14 and 15 , a second embodiment of the dual pressure-accumulating hinge of the present invention also includes the pivot unit 2 , the plurality of pressure-accumulating components 3 , and the shaft unit 4 . The differences are:

[0088] The second sleeve 32 of the pressure accumulator unit 3a abuts against the pressure accumulator slider 352. The stopper 322 of the second sleeve 32 of the pressure accumulator unit 3a also has a rectangular hole 324. The second sleeve 32 of the torque and pressure accumulator unit 3b omits the rectangular hole 324 as shown in FIG4 .

[0089] The restoring element assembly 46 includes a torsion spring 464. The torsion spring 464 has two opposite ends 465. The ends 465 are connected between the ratchet member 354 and the second sleeve 32 of the pressure accumulator unit 3a.

[0090] Thus, when the shaft 41 is rotated by the second leaf 22, or when the pressure accumulator sleeve 351 is rotated by the first leaf 21, the pressure accumulator slider 352 and the pressure accumulator sleeve 351 can push against each other, thereby pushing the second sleeve 32 of the pressure accumulator unit 3a and compressing the compression spring 461. Simultaneously, the rotation of the second sleeve 32 of the pressure accumulator unit 3a or the ratchet 354 can cause the torsion spring 464 to twist. This also combines vertical compression pressure with lateral thrust torque to enhance the restoring force.

[0091] Through the above description, the advantages of the aforementioned embodiment can be summarized as follows:

[0092] 1. The present invention utilizes the unique design of the multiple pressure accumulator assemblies 3 to simultaneously compress and twist the restoring element assembly 46 when the first leaf 21 or the second leaf 22 is pushed, thereby increasing the restoring force or generating an additive restoring force. This not only enhances the door closing force, but also provides a streamlined structure and allows for installation in any desired direction.

[0093] 2. Importantly, the present invention can set the angle range within which the restoring force generated by the restoring element group 46 can be generated by designing the different angles of the shaft hole 413 and the multiple second notches 323, or changing the angles of the engagement positions of the multiple ends 463 of the torsion spring 462 with the ratchet member 354 and the second sleeve 32 of the torque storage and pressure unit 3b, so that the present invention can achieve the door opening and closing effects of less hold on opening, back check power, and latch power.

[0094] 3. The present invention also allows the threaded engagement depth of the pressure-adjusting bolt 353 with the first sleeve 31 of the pressure-accumulating unit 3a to be adjusted, thereby varying the compression of the compression spring 461. Alternatively, the ratchet member 354 can be used to twist the torsion spring 462 or 464, thereby varying the torsion force of the torsion spring 462 or 464. This in turn adjusts the restoring force of the restoring element assembly 46, thereby achieving adjustable door closing speed.

[0095] 4. In addition, the present invention can also easily install the multiple pressure storage components 3 and the pivot unit 2 through a modular design, and replace different pressure storage components 3 to obtain different usage effects and meet different usage requirements.

[0096] 5. Taking into account all the above advantages, the present invention is suitable for application in movable door panels, such as doors, windows, container doors, refrigerator doors, liftable furniture or bookcases, etc., so as to improve the practicality of the attached products.

[0097] However, the above is merely an embodiment of the present invention and should not be used to limit the scope of the present invention. All simple equivalent changes and modifications made according to the claims and patent description of the present invention are still within the scope of the present invention.

Claims

1. A double pressure storage hinge, characterized in that: Include: A pivot unit includes two leaves, each of which has a sleeve, and the sleeves are arranged along an axis and define a channel around the axis; Two pressure storage assemblies are inserted into the pipeline along the axial direction, each of the pressure storage assemblies includes a first sleeve rotating together with one of the pages, a second sleeve rotatably sleeved on the first sleeve, and a pressure storage module arranged between the first sleeve and the second sleeve, one of the second sleeves of the plurality of pressure storage assemblies rotates together with another of the pages, and the pressure storage module of one of the pressure storage assemblies has a ratchet, the ratchet is movably and rotatably sleeved on the first sleeve of the other pressure storage assembly, and is disengageably engaged with the first sleeve of the other pressure storage assembly, the pressure storage module of the other pressure storage assembly has a pressure storage sleeve, and a pressure storage slider, the pressure storage sleeve is connected to the first sleeve of one of the pressure storage assemblies, and has an inclined surface, the pressure storage slider is pressed against the pressure storage sleeve and the second sleeve of one of the pressure storage assemblies, and has a reverse inclined surface that can fit with the inclined surface; and an axis unit, comprising an axis member movably inserted between the plurality of pressure accumulator assemblies along the axis direction, and a restoring element group arranged between the axis member and the pressure accumulator assemblies, the axis member being sleeved on the pressure accumulator slider and the second sleeve of the other pressure accumulator assemblies and rotating together with the pressure accumulator slider and the second sleeve of the other pressure accumulator assemblies, the restoring element group being pressed between the pressure accumulator slider and the ratchet member and being capable of being twisted by the corresponding second sleeve; Thereby, when one of the leaves drives the multiple first sleeves and the pressure storage sleeve to rotate, or the other leaf drives the corresponding second sleeve and the shaft to rotate, the inclined surface of the pressure storage sleeve and the reverse inclined surface of the pressure storage slider will push each other, and the return element group will be compressed by the pressure storage slider and twisted by the corresponding second sleeve, thereby generating an elastic force to drive the corresponding leaf to rotate.

2. The double pressure storage hinge according to claim 1, characterized in that: The first sleeve of each pressure storage assembly has two first notches that are spaced apart from each other and extend from one end face along the axial direction. The second sleeve of each pressure storage assembly has a rotating portion that is sleeved on the first sleeve, and a limiting portion that is opposite to the rotating portion. The pressure storage sleeve has two convex portions that are spaced apart from each other and formed on the circumferential surface. The multiple convex portions of the pressure storage sleeve correspond to the multiple first notches of the first sleeve, and the shaft member can rotatably pass through the pressure storage sleeve.

3. The double pressure storage hinge according to claim 2, characterized in that: The sleeve of the other leaf piece also has two engaging parts protruding from the inner surface, the rotating part of the second sleeve of the other pressure storage assembly has two second notches extending from an end face opposite to the rotating part along the axial direction and engaged with the multiple engaging parts, and a rectangular hole formed on the end face, the pressure storage slider has a rectangular hole extending from one end face along the axial direction to the other end face, the cross-section of the shaft member is rectangular, and is sleeved on the multiple rectangular holes.

4. The double pressure storage hinge according to claim 3, characterized in that: The shaft member has a first shaft section and a second shaft section opposite to the first shaft section. The first shaft section is rotatably inserted into the ratchet member. The second shaft section has a rectangular cross-section and is sleeved on the rectangular hole of the second sleeve of the other pressure accumulator component and the rectangular hole of the pressure accumulator slider, and rotates together with the second sleeve of the other pressure accumulator component and the pressure accumulator slider.

5. The double pressure storage hinge according to claim 3, characterized in that: The return element group has a compression spring and a torsion spring. The compression spring is pressed between the second sleeve of one of the pressure storage components and the pressure storage slider. The torsion spring is arranged between the ratchet part and the second sleeve of the other pressure storage component and has two opposite ends. The multiple ends are connected to the ratchet part and the second sleeve of the other pressure storage component.

6. The double pressure storage hinge according to claim 5, characterized in that: The shaft unit also includes an action member and at least one bolt member, the action member is installed on the second sleeve of one of the pressure storage components, and has two spaced-apart high grooves, two low grooves that form a position difference with the multiple high grooves along the axial direction and are spaced from the multiple high grooves, and two spaced-apart convex parts formed on the circumferential surface, the multiple convex parts correspond to the multiple second notches of the second sleeve of one of the pressure storage components, the at least one bolt member is connected to the shaft member, and can roll against the action member, and can sink into the multiple high grooves or the multiple low grooves.

7. The double pressure storage hinge according to claim 6, characterized in that: The limiting portion of the second sleeve of one of the pressure accumulator assemblies has two second notches extending along the axial direction from an end face opposite to the rotating portion, and the active member has two convex portions spaced apart and formed on the circumferential surface, and the multiple convex portions of the active member correspond to the multiple second notches of the second sleeve of one of the pressure accumulator assemblies.

8. The double pressure storage hinge according to claim 2, characterized in that: The second sleeve of one of the pressure accumulator assemblies is pressed against the pressure accumulator slider, and the limiting portion of the second sleeve of one of the pressure accumulator assemblies also has a rectangular hole formed on the end surface, and the pressure accumulator slider has a rectangular hole extending from one end surface to the other end surface along the axial direction, and the cross-section of the shaft member is rectangular and fits into the multiple rectangular holes.

9. The double pressure storage hinge according to claim 8, characterized in that: The restoring element group has a torsion spring, which is arranged between the ratchet part and the second sleeve of one of the pressure storage components and has two opposite ends, and the multiple ends are connected to the ratchet part and the second sleeve of one of the pressure storage components.

10. The double pressure storage hinge according to claim 1, characterized in that: The pressure accumulator module of one of the pressure accumulator assemblies also has a pressure regulating bolt, which is screwed into the first sleeve of one of the pressure accumulator assemblies along the axial direction and applies pressure to the pressure accumulator sleeve, and through the change of the screwing depth, the second sleeve of one of the pressure accumulator assemblies is forced to move along the axial direction.

11. The double pressure storage hinge according to claim 10, characterized in that: The shaft unit also includes two auxiliary elastic elements, one of which is arranged between the shaft member and the pressure-adjusting bolt, and constantly generates an elastic force that causes the shaft member to move along the axial direction, and the other auxiliary elastic element is arranged between the ratchet member and the shaft member, and constantly generates an elastic force that causes the shaft member to move along the axial direction.

12. The double pressure-accumulating hinge according to claim 1, characterized in that: The first sleeve of the other pressure storage component has a ring tooth portion forming an inner circumferential surface, and the ratchet member has a sleeve portion that is sleeved on the shaft member, an operable driving portion that extends from the sleeve portion along the axial direction, and a plurality of latching teeth formed on the sleeve portion and disengageably engaged with the ring tooth portion.

13. The double pressure storage hinge according to claim 12, characterized in that: Each of the pressure storage components also includes a locking bolt, and the ratchet part also has a C-shaped annular groove formed on the outer peripheral surface. The locking bolt is screwed into the respective leaves in a direction perpendicular to the axis and inserted into the respective first sleeves. The locking bolt of the other pressure storage component also has an extension portion, which can be detachably inserted into the annular groove of the ratchet part.

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