GB2588105A

GB2588105A - Hydraulic buffer hinge structure

Info

Publication number: GB2588105A
Application number: GB1914433.6A
Authority: GB
Inventors: Lin Su-Wei
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-07
Filing date: 2019-10-07
Publication date: 2021-04-21
Also published as: GB201914433D0

Abstract

A hydraulic buffer hinge with a first hinge plate 10 and first sleeve 11, a second hinge plate 20 and second sleeve 21; and a hydraulic buffer device comprising a buffer portion (31 Fig 2) rotatably connected to a rotation component 33 with a variable receiving portion “C” formed therebetween; a resilient portion 35 having a spindle 351 and a resilient element e.g. spring 353, with the spindle partially entering the buffer portion, and a casing 37 enclosing parts of the buffer to confine movement of the buffer liquid. The top end of the rotation component is connected to the first sleeve and the bottom end of the resilient portion is connected to the second sleeve such that when the hinge is operated the buffer portion and rotation component are drawn apart against the spring increasing the size of the receiving portion. Preferably the rotation component has two helical grooves (311 Fig 2) which receive an actuating rod 331 fixed to the rotation component 333 and the rod slides in the grooves to cause linear movement. An adjustment valve may be located in a via 330, the spring may be adjusted at using a screw (Fig 4).

Description

HYDRAULIC BUFFER HINGE STRUCTURE

BACKGROUND OF THE INVENTION

1. Field of the Invention

[0001] The present disclosure relates to hinge structures, and in particular to a hydraulic buffer hinge structure

2. Description of the Related Art

[0002] A conventional door opened and shut manually by users works in a way as follows: Two hinge plates pivotally coupled together by an axle therebetween are connected to a door body and a door frame, respectively. However, odds are that users leaving in a hurry will forget to shut the door. Furthermore, it is not uncommon that the door slams, for example, under a gust or out of users' recklessness, generating noise and causing damage to the door body/frame and wall. To prevent the door from slamming, the axle is equipped with an automatic shutting and buffering mechanism.

[0003] In view of this, it is important to provide a hinge structure capable of shutting the door body automatically and buffering.

BRIEF SUMMARY OF THE INVENTION

[0004] An objective of the present disclosure is to provide a hydraulic buffer hinge structure which overcomes drawbacks of the prior art: users leaving in a hurry forget to shut the door and the door slams under a gust or because of users' recklessness.

[0005] To achieve at least the above objective, the present disclosure provides a hydraulic buffer hinge structure comprising: a first hinge plate comprising a first sleeve a second hinge plate comprising a second sleeve and a hydraulic buffer device penetratingly disposed at the first sleeve and the second sleeve, the hydraulic buffer device comprising: a buffer portion; a rotation component fitted and rotatably connected to the buffer portion, wherein a variable receiving portion is defined between the rotation component and a top end of the buffer portion a resilient portion having a spindle and a resilient element, the spindle being partially penetratingly disposed at the buffer portion; and a casing for enclosing the buffer portion, the rotation component in part, and the resilient portion in part, so as to confine buffer liquid to the casing; wherein a top end of the rotation component is connected to the first sleeve, and a bottom end of the resilient portion is connected to the second sleeve, such that when the first sleeve and the second sleeve rotate relative to each other, the rotation component rotates and changes volume of the variable receiving portion, causing the buffer liquid to flow between the variable receiving portion and other space within the casing [0006] In an embodiment of the present disclosure, the buffer portion comprises two helical grooves being parallel and disposed on a sidewall of the buffer portion, and the rotation component has an actuating rod penetrating and fixed to two opposing through holes on a sidewall of the rotation component, with the actuating rod being penetratingly disposed at the helical grooves, allowing the rotation component to be rotatably connected to the buffer portion.

[0007] In an embodiment of the present disclosure, the helical grooves each have an inward recess for temporarily receiving the actuating rod.

[0008] In an embodiment of the present disclosure, a via is centrally disposed at the top end of the buffer portion, a rim of the top end of the buffer portion is positioned proximate to the rotation component, and the buffer portion comprises a first 0-ring disposed between the rim of the top end of the buffer portion and the rotation component to prevent the buffer liquid from entering or exiting the variable receiving portion through the rim of the top end of the buffer portion. [0009] In an embodiment of the present disclosure, the buffer portion comprises: a flow rate control connecting element penetratingly disposed at the via and having a circulation hole; and a flow rate control adjustment element comprising: a control rod penetratingly disposed at the circulation hole and an adjustment component connected to the top of the control rod and surrounded by threads, with an opening disposed at the top end of the adjustment component. The control rod tapers from top to bottom [0010] In an embodiment of the present disclosure, the flow rate control connecting element has a second 0-ring disposed between the flow rate control connecting element and the top end of the buffer portion.

[0011] In an embodiment of the present disclosure, the first sleeve comprises a cover with an adjustment hole corresponding in position to the adjustment component and revealing the opening, and an area of the adjustment hole is less than an area of a top surface of the adjustment component.

[0012] In an embodiment of the present disclosure, the adjustment component further comprises at least an third 0-ring for preventing escape of the buffer liquid from a periphery of the adjustment component.

[0013] In an embodiment of the present disclosure, the rotation component further comprises at least an auxiliary through hole disposed on the s dewall of the rotation component [0014] In an embodiment of the present disclosure, the buffer portion comprises two opposing limiting grooves, whereas the resilient portion comprises a limiting rod penetrating the spindle and penetratingly disposed at the limiting grooves, so as to place a limitation on the length by which the spindle is penetratingly disposed at the buffer portion.

[0015] In an embodiment of the present disclosure, the resilient element surrounds the spindle, and the length of the resilient element is varied by the buffer portion.

[0016] In an embodiment of the present disclosure, the spindle comprises two opposing resilient force control grooves, and the resilient portion further comprises a resilient force control rod penetratingly disposed at the resilient force control groove and abutting against the resilient element.

[0017] In an embodiment of the present disclosure the resilient portion further comprises a resilient force adjustment component inserted into the resilient portion through the bottom end of the resilient portion such that the top end of the resilient force adjustment component abuts against the resilient force control rod.

[0018] In an embodiment of the present disclosure, threads are disposed around the resilient force adjustment component, and an opening is disposed at a bottom end of the resilient force adjustment component The resilient force adjustment component is fastened to and fixed inside the bottom end of the resilient portion because of the threads. Given the opening and the threads, a user can adjust the depth by which the resilient force adjustment component is penetratingly disposed at the resilient portion.

[0019] In an embodiment of the present disclosure, the second sleeve comprises a cover with an adjustment hole corresponding in position to the resilient force adjustment component and revealing the opening. The area of the adjustment hole is less than the area of the bottom surface of the resilient force adjustment component.

[0020] In an embodiment of the present disclosure, the resilient force adjustment component further comprises at least an 0-ring for preventing escape of the buffer liquid from the periphery of the resilient force adjustment component.

[0021] In an embodiment of the present disclosure, the hydraulic buffer hinge structure further comprises: an actuating ring fitted around the top end of the rotation component; and a fixing ring fitted around the bottom end of the resilient portion. The top end of the hydraulic buffer device is connected to the first sleeve through the actuating ring The bottom end of the hydraulic buffer device is fixed to the second sleeve by the fixing ring [0022] The hydraulic buffer hinge structure of the present disclosure is advantageous in that the resilient portion stores a resilience potential energy whenever the door body is opening and converts the resilience potential energy into a restoring kinetic energy upon disappearance of the force applied for opening the door body, so as to enable the door body to shut automatically. Furthermore, the buffer liquid passes through the circulation hole of the flow rate control connecting element to thereby exit/enter the variable receiving portion, so as to provide a buffer mechanism in the course of shutting/opening the door body.

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 is a partial exploded view of a hydraulic buffer hinge structure according to an embodiment of the present disclosure.

[0024] FIG. 2 is a partial exploded view of a hydraulic buffer device according to

an embodiment of the present disclosure.

[0025] FIG. 3 is a partial exploded view of a buffer portion according to an embodiment of the present disclosure.

[0026] FIG. 4 is a partial exploded view of a resilient portion according to an

embodiment of the present disclosure.

DETAILED DESCRIPTION OF THE INVENTION

[0027] To facilitate understanding of the object, characteristics and effects of this present disclosure, embodiments together with the attached drawings for the detailed description of the present disclosure are provided. The present disclosure can be implemented or applied by any other specific embodiments. Various modifications and changes can be made to the details described herein in accordance with different viewpoints and applications without departing from the spirit of the present disclosure. Accompanying drawings of the present disclosure are merely schematic and illustrative but are not drawn to scale. Technical features of the present disclosure are further explained below, but the disclosure is not restrictive of the claims of the present disclosure.

[0028] FIG. 1 is a partial exploded view of a hydraulic buffer hinge structure 100 according to an embodiment of the present disclosure. As shown in FIG. 1, the hydraulic buffer hinge structure 100 comprises a first hinge plate 10, a second hinge plate 20 and a hydraulic buffer device 30. The first hinge plate 10 comprises a first sleeve 11. The second hinge plate 20 comprises a second sleeve 21. The hydraulic buffer device 30 is penetratingly disposed at the first sleeve 11 and the second sleeve 21. The hydraulic buffer device 30 functions as the rotating shaft of the hydraulic buffer hinge structure 100.

[0029] FIG. 2 is a partial exploded view of the hydraulic buffer device 30 according to an embodiment of the present disclosure. Referring to FIG. 1 and FIG. 2, the hydraulic buffer device 30 comprises a buffer portion 31, a rotation component 33, a resilient portion 35 and a casing 37. The rotation component 33 is fitted and rotatably connected to the buffer portion 31. A variable receiving portion C (shown in FIG. 1 and indicative of an internal space) is defined between the rotation component 33 and a top end 310 of the buffer portion 31. The resilient portion 35 has a spindle 351 and a resilient element 353. The spindle 351 is partially penetratingly disposed at the buffer portion 31 (shown in FIG. 2). The casing 37 encloses the buffer portion 31, the rotation component 33 in part, and the resilient portion 35 in part, so as to confine buffer liquid to the casing 37. In addition, the casing 37 penetrates through another first sleeve at the bottom side of the first sleeve 11 and another second sleeve at the top side of the second sleeve 21. [0030] In an embodiment of the present disclosure, a top end 330 of the rotation component 33 is connected to the first sleeve 11, and a bottom end 350 of the resilient portion 35 is connected to the second sleeve 21 When the first sleeve 11 and the second sleeve 21 rotate relative to each other, the rotation component 33 rotates and changes the volume of the variable receiving portion C, causing the buffer liquid to flow between the variable receiving portion and the other space within the casing 37. The buffer liquid flowing between the variable receiving portion and the other space within the casing 37 serves as a buffer as described in detail below.

[0031] As shown in FIG. 1, in an embodiment, the hydraulic buffer hinge structure 100 further comprises an actuating ring 41 and a fixing ring 43. The actuating ring 41 is fitted around the top end 330 of the rotation component 33. The fixing ring 43 is fitted around the bottom end 350 of the resilient portion 35. The top end (the top end 330 of the rotation component 33) of the hydraulic buffer hinge structure 100 is connected to the first sleeve 11 because of the actuating ring 41. The bottom end (the bottom end 350 of the resilient portion 35) of the hydraulic buffer hinge structure 100 is fixed to the second sleeve 21 because of the fixing ring 43.

[0032] As shown in FIG. 2, the buffer portion 31 comprises two helical grooves 311. The helical grooves 311 are parallel and disposed on the sidewall of the buffer portion 31. The rotation component 33 has an actuating rod 331. The actuating rod 331 penetrates and is fixed to two opposing through holes 333 (FIG. 2 shows just one of the through holes 333) on the s dewall of the rotation component 33. With the actuating rod 331 being penetratingly disposed at the helical grooves 311, the rotation component 33 is rotatably connected to the buffer portion 31.

[0033] Therefore, when the first sleeve 11 and the second sleeve 21 rotate relative to each other, the rotation component 33 rotates, causing the actuating rod 331 to move along the helical grooves 311. Since the rotation component 33 is restrained by the first sleeve 11, and the resilient portion 35 by the second sleeve 21, the rotation component 33 and the spindle 351 of the resilient portion 35 do not undergo displacement parallel to the lengthwise direction of the spindle 351. Since the actuating rod 331 moves along the helical grooves 311, the buffer portion 31 undergoes displacement relative to the resilient portion 35 and the rotation component 33 and parallel to the lengthwise direction of the spindle 351, thereby changing the volume of the variable receiving portion C. [0034] FIG. 3 is a partial exploded view of the buffer portion 31 according to an embodiment of the present disclosure. Referring to FIG. 1 through FIG. 3, a via 31H is centrally disposed at the top end of the buffer portion 31. The rim of the top end 310 of the buffer portion 31 is positioned proximate to the rotation component 33. The buffer portion 31 comprises a first 0-ring 31R disposed between the rim of the top end 310 and the rotation component 33 to preclude admission of the buffer liquid through the rim of the top end or prevent the buffer liquid from exiting the variable receiving portion C. [0035] As shown in FIG. 2, FIG. 3, in this embodiment of the present disclosure, the buffer portion 31 comprises a flow rate control connecting element 313. The flow rate control connecting element 313 is penetratingly disposed at the via 3111.

The flow rate control connecting element 313 has a circulation hole 313H. In an embodiment, the flow rate control connecting element 313 has a second 0-ring 313R. The second 0-ring 313R is disposed between the flow rate control connecting element 313 and the top end of the buffer portion 31.

[0036] The flow rate control connecting element 313 provides a path along which the buffer liquid flows between the buffer portion 31 and the variable receiving portion C. For example, opening the door body gradually is accompanied by increasing the volume of the variable receiving portion C gradually, such that the buffer liquid enters the variable receiving portion C through the circulation hole 313H of the flow rate control connecting element 313 and the gap between the flow rate control connecting element 313 and the via 31H. Conversely, shutting the door body gradually is accompanied by decreasing the volume of the variable receiving portion C gradually, such that the second 0-ring 313R supported by the flow rate control connecting element 313 stops the buffer liquid from passing through the gap between the flow rate control connecting element 313 and the via 31H and entering the buffer portion 31, but the buffer liquid can still pass through the circulation hole 31311 of the flow rate control connecting element 313 and enter the buffer portion 31. Therefore, shutting the door body gradually is buffered more than opening the door body gradually to thereby effectively prevent the door from slamming which might otherwise generate noise and cause damage to the door body/frame and wall.

[0037] As shown in FIG. 2, FIG. 3, the buffer portion 31 further comprises a flow rate control adjustment element 315. The flow rate control adjustment element 315 comprises a control rod 3151 and an adjustment component 3153. The control rod 3151 is penetratingly disposed at the circulation hole 313H. The adjustment component 3153 is connected to the top of the control rod 3151. In this embodiment, the adjustment component 3153 is surrounded by threads 3155. The top end of the adjustment component 3153 has an opening 3157. Owing to the threads 3155, the adjustment component 315 can be fitted inside the top end 330 of the rotation component 33. The opening 3157 and the threads 3155 together enable the user to adjust the depth by which the control rod 3151 is penetratingly disposed at the circulation hole 313H.

[0038] The control rod 3151 tapers from top to bottom. The greater the depth by which the control rod 3151 is penetratingly disposed at the circulation hole 313H, the smaller is the cross-sectional area of the circulation hole 31311 to be passed through by the buffer liquid to thereby attain a lower flow rate of the buffer liquid.

Conversely, the lesser the depth by which the control rod 3151 is penetratingly disposed at the circulation hole 313H, the larger is the cross-sectional area of the circulation hole 313H to be passed through by the buffer liquid to thereby attain a higher flow rate of the buffer liquid. A worker adjusts the depth by which the control rod 3151 is penetratingly disposed at the circulation hole 313H to evaluate the degree of buffering attained by the buffer portion 31.

[0039] As shown in FIG. 1, in an embodiment, the first sleeve 11 comprises a cover 111. The cover 111 has an adjustment hole 111H. The adjustment hole 111H corresponds in position to the adjustment component 3153 shown in FIG. 2 and FIG. 3 and reveals the opening 3157 of the adjustment component 3153. The area of the adjustment hole 11111 is less than the area of the top surface of the adjustment component 3153. hence, the worker adjusts the depth by which the control rod 3151 is penetratingly disposed at the circulation hole 31311 by passing a tool, such as a screwdriver, through the adjustment hole 111H instead of opening the cover 111 of the first sleeve 11. Since the area of the adjustment hole 111H is less than the area of the top surface of the adjustment component 3153, the cover 111 blocks the flow rate control adjustment element 315 to thereby prevent the escape of the flow rate control adjustment element 315 from the rotation component 33.

[0040] In an embodiment, the adjustment component 3153 further comprises at least an third 0-ring 315R. The at least an third 0-ring 315R prevents the exit of the buffer liquid through the rim of the adjustment component 3153.

[0041] As shown in FIG. 2 in a variant embodiment, the rotation component 33 further comprises at least an auxiliary through hole 33H. The at least an auxiliary through hole 33H is disposed on the sidewall of the rotation component 33 to provide for the buffer liquid a flow path other than the circulation hole 313E1 of the flow rate control connecting element 313. For example, auxiliary through holes 33H are located at different points on the sidewall of the rotation component 33 to provide a flow path whereby not only is the user not confronted with excessive resistance while opening the door body, but the user also perceives different degrees of resistance while rotating the door body by different degrees (for example, 30 degrees, 45 degrees, 60 degrees) relative to the completely shut state of the door body.

[0042] In this embodiment, the buffer portion 31 comprises two opposing limiting grooves 317 (only one of which is shown in FIG. 2 and FIG. 3), and the resilient portion 35 comprises a limiting rod 355. The limiting rod 355 penetrates the spindle 351 and is penetratingly disposed at the limiting grooves 317. The limiting rod 355 and the limiting grooves 317 together place a limitation on the length by which the spindle 351 is penetratingly disposed at the buffer portion 31. The resilient element 353 surrounds the spindle 351. The length of the resilient element 353 is varied by the buffer portion 31.

[0043] For example, when the first sleeve 11 and the second sleeve 21 relative to each other, the rotation component 33 rotates, and in consequence the actuating rod 331 moves along the helical grooves 311 and causes the buffer portion 31 to undergo displacement parallel to the lengthwise direction of the spindle 351. When the buffer portion 31 moves downward relative to the resilient portion 35 and the rotation component 33, and in consequence the buffer portion 31 compresses the resilient element 353 and causes the resilient element 353 to store a resilience potential energy. When the buffer portion 31 moves upward relative to the resilient portion 35 and the rotation component 33, and in consequence the buffer portion 31 compresses the resilient element 353 lesser and lesser, whereas the resilient element 353 releases the resilience potential energy gradually.

[0044] FIG. 4 is a partial exploded view of the resilient portion 35 according to an embodiment of the present disclosure. As shown in FIG. 2, FIG. 4, in an embodiment, the spindle 351 comprises two opposing resilient force control grooves 3511 (only one of the resilient force control grooves 3511 are shown in FIG. 2 and FIG. 4), and the resilient portion 35 further comprises a resilient force control rod 357. The resilient force control rod 357 is penetratingly disposed at the resilient force control groove 3511 and abuts against the resilient element 353. In this embodiment, the resilient portion 35 further comprises a resilient force adjustment component 359. The resilient force adjustment component 359 penetrates the bottom end 350 of the resilient portion 35 and enters the resilient portion 35 such that the top end of the resilient force adjustment component 359 abuts against the resilient force control rod 357.

[0045] The resilient force adjustment component 359 is surrounded by threads 3591. The bottom end of the resilient force adjustment component 359 is, for example, an opening 3593. Owing to the threads 3591, the resilient force adjustment component 359 is fastened to and fitted inside the bottom end 350 of the resilient portion 35. The opening 3593 and the threads 3591 together enable the user to adjust the depth by which the resilient force adjustment component 359 is penetratingly disposed at the resilient portion 35. The greater the depth by which the resilient force adjustment component 359 is penetratingly disposed at the resilient portion 35, the greater the force the rotation component 33 must exert on the buffer portion 31 in order to compress the resilient element 353, thereby causing the resilient element 353 to store more resilience potential energy. Conversely, the lesser the depth by which the resilient force adjustment component 359 is penetratingly disposed at the resilient portion 35, the lesser the force the rotation component 33 needs to exert on the buffer portion 31 in order to compress the resilient element 353, thereby causing the resilient element 353 to store less resilience potential energy. Therefore, the worker can adjust the depth by which the resilient force adjustment component 359 is penetratingly disposed at the resilient portion 35 so as to determine the quantity of the resilience potential energy which the resilient portion 35 (the resilient element 353) can store.

[0046] As shown in FIG. 1, in an embodiment, the second sleeve 21 comprises a cover 211. The cover 211 has an adjustment hole 21111. The adjustment hole 211E1 corresponds in position to the resilient force adjustment component 359 and reveals the opening 3593, as shown in FIG. 4. The area of the adjustment hole 211H is less than the area of the bottom surface of the resilient force adjustment component 359. Therefore, the worker adjusts the depth by which the resilient force adjustment component 359 is penetratingly disposed at the resilient portion 35 by passing a tool, such as a screwdriver, through the adjustment hole 111H instead of opening the cover 211 of the second sleeve 21. Since the area of the adjustment hole 211H is less than the area of the bottom surface of the resilient force adjustment component 359, the cover 211 blocks the resilient force adjustment component 359 to prevent the escape of the resilient force adjustment component 359 from the bottom end 350 of the resilient portion 35.

[0047] Likewise, in an embodiment, the resilient force adjustment component 359 further comprises at least an 0-ring 359R. The at least an 0-ring 359R prevents the exit of the buffer liquid through the rim of the resilient force adjustment component 359.

[0048] The hydraulic buffer hinge structure 100 in an embodiment of the present disclosure provides a mechanism capable of shutting the door body automatically and hydraulic buffering and thus effectively overcomes drawbacks of the prior art. For example, the first hinge plate 10 is disposed on a door body, and the second hinge plate 20 is disposed on a door frame. When the user exerts a force to open the door body relative to the door frame, the rotation component 33 is rotated because of the actuating ring 41, causing the actuating rod 331 to move along the helical grooves 311. Since the rotation component 33 is restrained by the first sleeve 11, and the resilient portion 35 by the second sleeve 21, the buffer portion 31 undergoes downward displacement parallel to the lengthwise direction of the spindle 351 and relative to the resilient portion 35 and the rotation component 33, and the volume of the variable receiving portion C increases. At this point, the buffer liquid passes through the circulation hole 313H of the flow rate control connecting element 313 and the gap between the flow rate control connecting element 313 and the via 31H so as to enter the variable receiving portion C or passes through the at least an auxiliary through hole 3311 so as to exit the buffer portion 31, attaining the buffer required in the course of opening the door body. The buffer portion 31 undergoing downward displacement compresses the resilient element 353 and causes the resilient element 353 to store a resilience potential energy.

[0049] As soon as the user stops exerting any force, the resilience potential energy previously stored as a result of the compression of the resilient element 353 converts into a restoring kinetic energy of the resilient element 353. The restoring kinetic energy enables the buffer portion 31 to undergo upward displacement parallel to the lengthwise direction of the spindle 351 and relative to the resilient portion 35 and the rotation component 33 and causes the volume of the variable receiving portion C to decrease. Thanks to the upward displacement of the buffer portion 31, the rotation component 33 rotates reversely, and the actuating ring 41 actuates the first sleeve 11 to rotate reversely, allowing the door body to shut automatically.

[0050] At this point, the buffer liquid passes through the circulation hole 313H of the flow rate control connecting element 313 (but cannot pass through the gap between the flow rate control connecting element 313 and the via 31H) or passes through the at least an auxiliary through hole 331-1 and thus exits the variable receiving portion C, providing the buffer required in the course of shutting the door body.

[0051] As shown in FIG. 2, FIG. 3, in an embodiment, the helical grooves 311 each have an inward recess 3111 for temporarily receiving the actuating rod 331 When the actuating rod 331 is received in the inward recess 3111, the inward recess 3111 enables the buffer portion 31 to resist the restoring force of the resilient element 353 such that the door body is temporarily opened. It is only when the user exerts an additional force under which the actuating rod 331 separates from the inward recess 3111 that the door body begins to shut automatically.

[0052] The hydraulic buffer hinge structure 100 of the present disclosure is advantageous in that the resilient portion 35 stores a resilience potential energy whenever the door body is opening and converts the resilience potential energy into a restoring kinetic energy upon disappearance of the force applied for opening the door body, so as to enable the door body to shut automatically. The buffer liquid passes through the circulation hole 31311 of the flow rate control connecting element 313 and thereby exits/enters the variable receiving portion C, providing the buffer required in the course of shutting/opening the door body.

[0053] While the present disclosure has been described by means of specific embodiments, numerous modifications and variations could be made thereto by those skilled in the art without departing from the scope and spirit of the present

disclosure set forth in the claims

Claims

WHAT IS CLAIMED IS: A hydraulic buffer hinge structure, comprising.a first hinge plate comprising a first sleeve; a second hinge plate comprising a second sleeve, and a hydraulic buffer device penetratingly disposed at the first sleeve and the second sleeve, the hydraulic buffer device comprising: a buffer portion; a rotation component fitted and rotatably connected to the buffer portion, wherein a variable receiving portion is defined between the rotation component and a top end of the buffer portion; a resilient portion having a spindle and a resilient element, the spindle being partially penetratingly disposed at the buffer portion; and a casing for enclosing the buffer portion, the rotation component in part, and the resilient portion in part, so as to confine buffer liquid to the casing; wherein a top end of the rotation component is connected to the first sleeve, and a bottom end of the resilient portion is connected to the second sleeve, such that when the first sleeve and the second sleeve rotate relative to each other, the rotation component rotates and changes volume of the variable receiving portion, causing the buffer liquid to flow between the variable receiving portion and other space within the casing.
2. The hydraulic buffer hinge structure of claim 1, wherein the buffer portion comprises two helical grooves being parallel and disposed on a s dewall of the buffer portion, and the rotation component has an actuating rod penetrating and fixed to two opposing through holes on a s dewall of the rotation component, with the actuating rod being penetratingly disposed at the helical grooves, allowing the rotation component to be rotatably connected to the buffer portion.
3. The hydraulic buffer hinge structure of claim 2, wherein the helical grooves each have an inward recess for temporarily receiving the actuating rod.
4. The hydraulic buffer hinge structure of claim 1, wherein a via is centrally disposed at the top end of the buffer portion, a rim of the top end of the buffer portion is positioned proximate to the rotation component, and the buffer portion comprises a first 0-ring disposed between the rim of the top end of the buffer portion and the rotation component to prevent the buffer liquid from entering or exiting the variable receiving portion through the rim of the top end of the buffer portion.
5. The hydraulic buffer hinge structure of claim 4, wherein the buffer portion comprises: a flow rate control connecting element penetratingly disposed at the via and having a circulation hole; and a flow rate control adjustment element comprising: a control rod penetratingly disposed at the circulation hole; and an adjustment component connected to a top of the control rod and surrounded by threads, wherein a top end of the adjustment component has an opening; wherein the control rod tapers from top to bottom.
6. The hydraulic buffer hinge structure of claim 5, wherein the flow rate control connecting element has a second 0-ring disposed between the flow rate control connecting element and the top end of the buffer portion.
The hydraulic buffer hinge structure of claim 5, wherein the first sleeve comprises a cover with an adjustment hole corresponding in position to the adjustment component and revealing the opening, and an area of the adjustment hole is less than an area of a top surface of the adjustment component
8. The hydraulic buffer hinge structure of claim 5, wherein the adjustment component further comprises at least an third 0-ring for preventing escape of the buffer liquid from a periphery of the adjustment component.
9. The hydraulic buffer hinge structure of any one of claims 4-8, wherein the rotation component further comprises at least an auxiliary through hole disposed on a sidewall of the rotation component.
10. The hydraulic buffer hinge structure of claim 1, wherein the buffer portion comprises two opposing limiting grooves, whereas the resilient portion comprises a limiting rod penetrating the spindle and penetratingly disposed at the limiting Grooves.
11. The hydraulic buffer hinge structure of claim 10, wherein the resilient element surrounds the spindle, and a length of the resilient element is varied by the buffer 10 portion.
12. The hydraulic buffer hinge structure of claim 11, wherein the spindle comprises two opposing resilient force control grooves, whereas the resilient portion further comprises a resilient force control rod penetratingly disposed at the resilient force control grooves and abutting against the resilient element.
13. The hydraulic buffer hinge structure of claim 12, wherein the resilient portion further comprises a resilient force adjustment component inserted into the resilient portion through the bottom end of the resilient portion, and a top end of the resilient force adjustment component abuts against the resilient force control rod.
14. The hydraulic buffer hinge structure of claim 13, wherein threads are disposed around the resilient force adjustment component, and an opening is disposed at a bottom end of the resilient force adjustment component.
15. The hydraulic buffer hinge structure of claim 14, wherein the second sleeve comprises a cover with an adjustment hole corresponding in position to the resilient force adjustment component and revealing the opening, and an area of the adjustment hole is less than an area of a bottom surface of the resilient force adjustment component.
16. The hydraulic buffer hinge structure of claim 13, wherein the resilient force adjustment component further comprises at least an 0-ring for preventing escape of the buffer liquid from a periphery of the resilient force adjustment component.
17. The hydraulic buffer hinge structure of claim 1, further comprising: an actuating ring fitted to the top end of the rotation component and a fixing ring fitted to the bottom end of the resilient portion; wherein a top end of the hydraulic buffer hinge structure is connected to the first sleeve through the actuating ring, and a bottom end of the hydraulic buffer hinge structure is fixed to the second sleeve through the fixing ring.