CN109681522B - Friction hinge and display device - Google Patents
Friction hinge and display device Download PDFInfo
- Publication number
- CN109681522B CN109681522B CN201910092078.3A CN201910092078A CN109681522B CN 109681522 B CN109681522 B CN 109681522B CN 201910092078 A CN201910092078 A CN 201910092078A CN 109681522 B CN109681522 B CN 109681522B
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- CN
- China
- Prior art keywords
- shaft sleeve
- key
- damping
- hinge
- friction hinge
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/10—Arrangements for locking
- F16C11/103—Arrangements for locking frictionally clamped
Abstract
The invention discloses a friction hinge and display equipment, wherein the friction hinge comprises a shell and a hinge shaft arranged in the shell, two ends of the hinge shaft are respectively provided with an external conical surface, and each external conical surface is respectively matched with a corresponding damping adjusting mechanism; the damping adjusting mechanism comprises a damping shaft sleeve, a shaft sleeve key, a cantilever support and a set screw, wherein an inner conical surface matched with the outer conical surface of the hinge shaft is arranged in an inner hole of the damping shaft sleeve, the damping shaft sleeve is axially movably arranged in the inner hole of the cantilever support through the outer peripheral surface of the damping shaft sleeve, and the shaft sleeve key is clamped in a groove at the end part of the damping shaft sleeve; the shaft sleeve key is provided with a key part positioned on the outer side and a pressure-bearing part positioned at one end, and an inner hole of the cantilever support is provided with an axial key groove corresponding to the key part; the set screw is screwed into a threaded hole in the center of the outer side of the cantilever support, and the inner end of the set screw is directly or indirectly abutted to the bearing part of the shaft sleeve key. The friction hinge is simple in structure and convenient to use.
Description
Technical Field
The invention relates to the technical field of medical equipment, in particular to a hinge for adjusting the angle of a display in equipment with a display function. The invention also relates to a display device provided with said hinge.
Background
In some medical display devices, it is generally desirable that the screen of the display be tiltable at an angle and capable of being stopped at any position to facilitate viewing by the operator in different positions.
The display can be tilted to a certain angle and can be stopped at any position, which is usually accomplished by applying a certain friction force to the rotatable hinge shaft, either on the cylindrical surface or on the end surface.
The traditional friction hinge has the defects of complex structure and large occupied space, and the adjustable range of the friction resistance is limited, so that the friction hinge cannot adapt to displays with different weights, the displays with different weights need to be matched with friction hinges with different specifications, and the universality is poor.
Furthermore, after a period of use, the damping of the friction hinge may gradually decrease due to wear, but its adjustment may not be easy for the operator to adjust.
Disclosure of Invention
The invention aims to provide a friction hinge which is simple in structure and convenient to use.
Another object of the present invention is to provide a display apparatus provided with the friction hinge.
In order to achieve the purpose, the invention provides a friction hinge which comprises a shell and a hinge shaft arranged in the shell, wherein two ends of the hinge shaft are respectively provided with an outer conical surface, and each outer conical surface is respectively matched with a corresponding damping adjusting mechanism; the damping adjusting mechanism comprises a damping shaft sleeve, a shaft sleeve key, a cantilever support and a set screw, wherein an inner conical surface matched with the outer conical surface of the hinge shaft is arranged in an inner hole of the damping shaft sleeve, the damping shaft sleeve is axially movably arranged in the inner hole of the cantilever support through the outer peripheral surface of the damping shaft sleeve, and the shaft sleeve key is clamped in a groove at the end part of the damping shaft sleeve; the shaft sleeve key is provided with a key part positioned on the outer side and a pressure-bearing part positioned at one end, and an inner hole of the cantilever support is provided with an axial key groove corresponding to the key part; the set screw is screwed into a threaded hole in the center of the outer side of the cantilever support, and the inner end of the set screw is directly or indirectly abutted to the bearing part of the shaft sleeve key.
Preferably, the outer conical surface of the hinge shaft and the inner conical surface of the damping bushing have the same taper.
Preferably, the shaft sleeve key is in a C shape with an opening facing the end part of the damping shaft sleeve, and two radially symmetrical grooves are formed in the end part of the damping shaft sleeve; the shaft sleeve key is clamped in the groove of the damping shaft sleeve through a step part on the inner side of the opening of the shaft sleeve key, and the step surface of the step part is abutted against the bottom surface of the groove.
Preferably, the stepped portion of the sleeve key has a first side wall and a second side wall; the damping shaft sleeve is characterized in that a side plane corresponding to the groove in the axial direction is arranged on the outer peripheral surface of the damping shaft sleeve, a first side wall of the shaft sleeve key is located on the outer side of the side plane, and a gap is formed between a second side wall of the shaft sleeve key and an outer conical surface of the hinge shaft.
Preferably, the two outer corners of the end, provided with the bearing part, of the shaft sleeve key are respectively provided with an inclined surface.
Preferably, the outer end of the cantilever support is provided with an inner concave part for installing an end cover, the inner side of the end cover is provided with clamping jaws at the peripheral part, and the bottom surface of the inner concave part is provided with clamping holes corresponding to the clamping jaws.
Preferably, the inner end of the outrigger has an outer bore wall and an inner bore wall with an annular groove formed therebetween.
Preferably, the damping shaft sleeve is a copper alloy shaft sleeve, a plastic shaft sleeve or a composite material shaft sleeve.
Preferably, the shaft sleeve key and the damping shaft sleeve are of an integrated structure.
In order to achieve the above another object, the present invention provides a display device, including a display and a hinge provided on the display to adjust an angle of the display, wherein the hinge is the friction hinge described above, and the display is connected to a cantilever of the friction hinge.
The friction hinge provided by the technical scheme utilizes a conical structure to provide friction force, the damping shaft sleeve with an inner conical surface is matched with the hinge shaft, the hinge shaft has an outer conical surface with the same taper, and the position of the damping shaft sleeve on the hinge shaft can be adjusted through the set screw, so that the matching gap between the damping shaft sleeve and the hinge shaft is adjusted, and the purpose of generating friction resistance is achieved. The display has the advantages of simple structure and small occupied space, and the frictional resistance can be adjusted according to the requirement, so that the display can adapt to displays with different weights.
The display device provided by the invention is provided with the friction hinge, and the friction hinge has the technical effects, so the display device provided with the friction hinge also has the corresponding technical effects.
Drawings
FIG. 1 is an exploded view of the right half of a friction hinge according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of the right half of the friction hinge shown in FIG. 1;
fig. 3 is a partially enlarged view of the portion I in fig. 2.
In the figure:
1. the bearing comprises a shell 2, a hinge shaft 3, a cantilever support 3-1, an outer side hole wall 3-2, an inner side hole wall 4, a set screw 5, an end cover 5-1, a clamping jaw 6, a shaft sleeve key 6-1, a bearing part 6-2, an inclined surface 6-3, a key part 6-4, a first side wall 6-5, a second side wall 7, a damping shaft sleeve 7-1, a groove 7-2, a side plane 8, a sealing part 9, a connecting hole and a clamping groove
Detailed Description
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In this specification, terms such as "upper, lower, inner, and outer" are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, the terms are not to be construed as absolutely limiting the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
Referring to fig. 1 and 2, fig. 1 is an exploded schematic view of a right half of a friction hinge according to an embodiment of the present invention; fig. 2 is a cross-sectional view of the right half of the friction hinge shown in fig. 1.
In a specific embodiment, the friction hinge provided by the invention mainly comprises a cylindrical shell 1, a hinge shaft 2 arranged in the shell 1 and damping adjusting mechanisms positioned at two ends of the shell 1, wherein the hinge shaft 2 is transversely embedded in the shell 1, cannot rotate or move along the axial direction, and two ends respectively extend outwards for a certain distance.
The two ends of the hinge shaft 2 are respectively provided with an external conical surface, each external conical surface is respectively matched with a corresponding damping adjusting mechanism, the damping adjusting mechanism at the right end is mainly described below, and the damping adjusting mechanism at the left end is bilaterally symmetrical to the damping adjusting mechanism at the right end.
The damping adjusting mechanism mainly comprises a damping shaft sleeve 7, a shaft sleeve key 6, a cantilever support 3 and a set screw 4, wherein an inner hole of the damping shaft sleeve 7 is provided with an inner conical surface matched with an outer conical surface of the hinge shaft 2, the outer conical surface of the hinge shaft 2 has the same taper as the inner conical surface of the damping shaft sleeve 7, the damping shaft sleeve 7 is axially movably arranged in the inner hole of the cantilever support 3 through the outer peripheral surface of the damping shaft sleeve 7, and the damping shaft sleeve 7 is made of wear-resistant copper alloy or can be made of plastics or other composite materials.
The shaft sleeve key 6 is clamped in a groove 7-1 at the end part of the damping shaft sleeve 7. Specifically, the shaft sleeve key 6 is in a C shape with an opening facing the end part of the damping shaft sleeve 7, and two radially symmetrical grooves 7-1 are arranged at the end part of the damping shaft sleeve 7; the shaft sleeve key 6 is clamped in the groove 7-1 of the damping shaft sleeve 7 through a step part on the inner side of the opening of the shaft sleeve key, the step surface of the step part is abutted against the bottom surface of the groove 7-1, and two outer corners of one end, provided with the bearing part 6-1, of the shaft sleeve key 6 are respectively provided with an inclined surface 6-2 which can play a role in guiding and is convenient to mount into an inner hole of the cantilever support 3.
During assembly, the shaft sleeve key 6 is clamped in the groove 7-1 of the damping shaft sleeve 7 and is placed into the inner hole of the cantilever support 3 together, the shaft sleeve key 6 is provided with a key part 6-3 positioned on the outer side and a pressure bearing part 6-1 positioned at one end, and the inner hole of the cantilever support 3 is provided with an upper axial key groove and a lower axial key groove corresponding to the key part; the sleeve key 6 acts as a spline and when the outrigger 3 is rotated, the sleeve key 6 rotates together with the damping sleeve 7.
The set screw 4 is a socket head cap screw with a short size, is screwed into a threaded hole in the center of the outer side of the cantilever support 3, and the inner end of the set screw is directly abutted against a pressure-bearing part 6-1 of the shaft sleeve key 6. When the set screw 4 is screwed, the set screw 4 can push the shaft sleeve key 6 and the damping shaft sleeve 7 to move along the axial direction, the fit clearance between the damping shaft sleeve 7 and the hinge shaft 2 is reduced, the friction force is increased, and damping is generated. When worn for a period of time, the damping becomes less and the set screw 4 can be adjusted to increase the damping.
The inner end of the cantilever support 3 is provided with an outer side hole wall 3-1 and an inner side hole wall 3-2, an annular groove is formed between the outer side hole wall 3-1 and the inner side hole wall 3-2, the outer end of the cantilever support 3 is provided with an inner concave part used for installing an end cover 5, the inner side of the end cover 5 is provided with clamping claws 5-1 at the peripheral part, and the bottom surface of the inner concave part is provided with clamping holes corresponding to the clamping claws.
The outer surface of the outer side hole wall 3-1 of the cantilever support 3 is provided with a step part, the end edge of the shell 1 is in nested fit with the step part of the outer side hole wall 3-1, a sealing element 8 is arranged between the end edge of the shell and the step part, and the cross section of the sealing element 8 is L-shaped.
Referring to fig. 3, fig. 3 is a partially enlarged view of a portion I in fig. 2.
As shown in the figure, the stepped part of the shaft sleeve key 6 is provided with a first side wall 6-4 and a second side wall 6-5; the peripheral surface of the damping shaft sleeve 7 is provided with a side plane 7-2 which corresponds to the groove 7-1 along the axial direction, the first side wall 6-4 of the shaft sleeve key 6 is positioned at the outer side of the side plane 7-2, and a gap is formed between the second side wall 6-5 of the shaft sleeve key 6 and the outer conical surface of the hinge shaft 2.
Besides, a proper distance is left between the end of the hinge shaft 2 and the inner end of the sleeve key 6, and the sleeve key 6 is provided with a small center hole at the middle position of the bearing part.
Of course, the sleeve key 6 may also be "X" shaped in axial projection and have four key portions, and accordingly, four axial key grooves need to be formed in the inner hole of the cantilever support 3, or the sleeve key 6 may also be in the shape of an end cap having splines on the periphery.
The sleeve key 6 is equivalent to a spline and plays a role of transmitting the pressing force at the central position, so the sleeve key 6 and the damping sleeve 7 can be of an integrated structure. If the sleeve key 6 is formed integrally with the damping sleeve 7, the key portion and the pressure receiving portion may have various forms, for example, the key portion may be located at an upper portion and a lower portion, and the pressure receiving portion may extend laterally as long as it can receive the thrust of the set screw 4 and move axially.
The above embodiments are merely preferred embodiments of the present invention, and are not limited thereto, and on the basis of the above embodiments, various embodiments can be obtained by performing targeted adjustment according to actual needs. For example, a spring or a spring washer may be interposed between the set screw 4 and the pressure receiving portion 6-1 of the sleeve key 6, so that the set screw 4 indirectly abuts against the pressure receiving portion 6-1 of the sleeve key 6 via an elastic member, whereby the damping can be increased even if the damping is small, even if the set screw 4 is not adjusted, by the elastic member, and so on. This is not illustrated here, since many implementations are possible.
In addition to the above friction hinge, the present invention further provides a display device, which includes a display (not shown in the figures) and a hinge disposed on the display for adjusting an angle of the display, wherein the hinge is the above friction hinge, the friction hinge has a plane on one side of the cantilever 3, and two connection holes 9 are disposed on the plane for connecting with the display.
The friction hinge and the display device provided by the present invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A friction hinge is characterized by comprising a shell (1) and a hinge shaft (2) arranged in the shell (1), wherein two ends of the hinge shaft (2) are respectively provided with an external conical surface, and each external conical surface is respectively matched with a corresponding damping adjusting mechanism; the damping adjusting mechanism comprises a damping shaft sleeve (7), a shaft sleeve key (6), a cantilever support (3) and a set screw (4), wherein an inner conical surface matched with the outer conical surface of the hinge shaft (2) is arranged in an inner hole of the damping shaft sleeve (7), the damping shaft sleeve (7) is axially movably arranged in the inner hole of the cantilever support (3) through the peripheral surface of the damping shaft sleeve, and the shaft sleeve key (6) is clamped in a groove at the end part of the damping shaft sleeve (7); the bushing key (6) is provided with a key part (6-3) positioned on the outer side and a pressure bearing part (6-1) positioned at one end, and an axial key groove corresponding to the key part (6-3) is formed in an inner hole of the cantilever support (3); the set screw (4) is screwed into a threaded hole in the center of the outer side of the cantilever support (3), and the inner end of the set screw is directly or indirectly abutted against a pressure-bearing part (6-1) of the shaft sleeve key (6).
2. The friction hinge according to claim 1, characterized in that the outer conical surface of the hinge shaft (2) has the same conicity as the inner conical surface of the damping bushing (7).
3. The friction hinge according to claim 1, characterized in that said bushing key (6) presents a "C" shape opening towards the end of said damping bushing (7), the end of said damping bushing (7) being provided with two radially symmetrical grooves (7-1); the shaft sleeve key (6) is clamped in the groove (7-1) of the damping shaft sleeve (7) through a step part on the inner side of the opening of the shaft sleeve key, and the step surface of the step part is abutted against the bottom surface of the groove (7-1).
4. The friction hinge according to claim 3, characterized in that the stepped portion of the boss key (6) has a first side wall (6-4) and a second side wall (6-5); the damping shaft sleeve is characterized in that a side plane (7-2) corresponding to the groove (7-1) in the axial direction is arranged on the peripheral surface of the damping shaft sleeve (7), a first side wall (6-4) of the shaft sleeve key (6) is located on the outer side of the side plane (7-2), and a gap is formed between a second side wall (6-5) of the shaft sleeve key (6) and the outer conical surface of the hinge shaft (2).
5. The friction hinge according to claim 4, characterized in that the two outer corners of the end of the sleeve key (6) provided with the bearing part (6-1) are respectively provided with a bevel (6-2).
6. The friction hinge according to claim 1, characterized in that the outer end of the cantilever support (3) is provided with an inner recess for mounting an end cap (5), the inner side of the end cap (5) is provided with claws (5-1) at the peripheral part, and the bottom surface of the inner recess is provided with a clamping hole corresponding to each claw (5-1).
7. The friction hinge according to claim 1, characterized in that the inner end of the outrigger (3) has an outer bore wall (3-1) and an inner bore wall (3-2), an annular groove being formed between the outer bore wall (3-1) and the inner bore wall (3-2).
8. Friction hinge according to claim 1, characterized in that the damping bushing (7) is a copper alloy bushing, a plastic bushing or a composite bushing.
9. A friction hinge according to any of claims 1 to 8, characterized in that said bushing key (6) is of one-piece construction with said damping bushing (7).
10. A display device comprising a display and a hinge provided to the display for adjusting the angle of the display, characterized in that the hinge is a friction hinge according to any of the preceding claims 1 to 9, the display being connected to a cantilever support (3) of the friction hinge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910092078.3A CN109681522B (en) | 2019-01-30 | 2019-01-30 | Friction hinge and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910092078.3A CN109681522B (en) | 2019-01-30 | 2019-01-30 | Friction hinge and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109681522A CN109681522A (en) | 2019-04-26 |
| CN109681522B true CN109681522B (en) | 2021-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910092078.3A Active CN109681522B (en) | 2019-01-30 | 2019-01-30 | Friction hinge and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109681522B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09233165A (en) * | 1996-02-26 | 1997-09-05 | Saitama Nippon Denki Kk | Hinge structure for collapsible device |
| CN1977732A (en) * | 2005-11-29 | 2007-06-13 | 晨智实业股份有限公司 | Stick capable of adjusting length |
| CN101469737A (en) * | 2007-12-28 | 2009-07-01 | 鸿富锦精密工业（深圳）有限公司 | Adjustable hinge mechanism |
| CN101469738A (en) * | 2007-12-29 | 2009-07-01 | 深圳富泰宏精密工业有限公司 | Hinge mechanism and portable electronic device equipped therewith |
| CN201767898U (en) * | 2010-04-28 | 2011-03-23 | 周裕佳 | Toilet bowl cover plate hinge structure |
| CN102242761A (en) * | 2010-05-14 | 2011-11-16 | 深圳富泰宏精密工业有限公司 | Hinge structure and portable electronic device therewith |
| JP5042379B2 (en) * | 2011-07-12 | 2012-10-03 | パナソニック株式会社 | Communication terminal |
| CN204387065U (en) * | 2014-12-11 | 2015-06-10 | 韩建和 | A kind of retaining ring nut positioning device |
-
2019
- 2019-01-30 CN CN201910092078.3A patent/CN109681522B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09233165A (en) * | 1996-02-26 | 1997-09-05 | Saitama Nippon Denki Kk | Hinge structure for collapsible device |
| CN1977732A (en) * | 2005-11-29 | 2007-06-13 | 晨智实业股份有限公司 | Stick capable of adjusting length |
| CN101469737A (en) * | 2007-12-28 | 2009-07-01 | 鸿富锦精密工业（深圳）有限公司 | Adjustable hinge mechanism |
| CN101469738A (en) * | 2007-12-29 | 2009-07-01 | 深圳富泰宏精密工业有限公司 | Hinge mechanism and portable electronic device equipped therewith |
| CN201767898U (en) * | 2010-04-28 | 2011-03-23 | 周裕佳 | Toilet bowl cover plate hinge structure |
| CN102242761A (en) * | 2010-05-14 | 2011-11-16 | 深圳富泰宏精密工业有限公司 | Hinge structure and portable electronic device therewith |
| JP5042379B2 (en) * | 2011-07-12 | 2012-10-03 | パナソニック株式会社 | Communication terminal |
| CN204387065U (en) * | 2014-12-11 | 2015-06-10 | 韩建和 | A kind of retaining ring nut positioning device |
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| Publication number | Publication date |
|---|---|
| CN109681522A (en) | 2019-04-26 |
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Address after: 110179 No. 177-1 Innovation Road, Hunnan District, Shenyang City, Liaoning Province Applicant after: DongSoft Medical System Co., Ltd. Address before: 110179 No. 177-1 Innovation Road, Hunnan District, Shenyang City, Liaoning Province Applicant before: Dongruan Medical Systems Co., Ltd., Shenyang |
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