CN110905320A - Automatic door closing hinge - Google Patents

Automatic door closing hinge Download PDF

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Publication number
CN110905320A
CN110905320A CN201811077831.3A CN201811077831A CN110905320A CN 110905320 A CN110905320 A CN 110905320A CN 201811077831 A CN201811077831 A CN 201811077831A CN 110905320 A CN110905320 A CN 110905320A
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CN
China
Prior art keywords
ejector block
hinge
cavity
adjusting rod
concave
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811077831.3A
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Chinese (zh)
Inventor
卢能才
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201811077831.3A priority Critical patent/CN110905320A/en
Publication of CN110905320A publication Critical patent/CN110905320A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/04—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes
    • E05F3/10—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with liquid piston brakes with a spring, other than a torsion spring, and a piston, the axes of which are the same or lie in the same direction
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
    • E05F3/20—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices in hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/08—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
    • E05F5/10—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops with piston brakes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

The invention relates to an automatic door closing hinge, which comprises an upper hinge and a lower hinge which can rotate relatively, wherein an upper top block is arranged in a sleeve of the upper hinge in a non-relatively rotatable manner; a lower top block is arranged in the sleeve of the lower hinge in a non-relatively rotatable manner; the upper ejector block and the lower ejector block are matched with each other through concave-convex surfaces, and a cavity is formed at the lower end of the lower ejector block; an adjusting rod is arranged on the upper ejector block and extends into the cavity of the lower ejector block through a through hole on the upper end surface of the cavity of the lower ejector block, and an upward adjusting rod lower end surface is provided at the lower end of the adjusting rod; a spring is arranged between the upper end surface of the cavity and the lower end surface of the adjusting rod; therefore, when the upper hinge and the lower hinge rotate relatively, the upper top block and the lower top block are driven to rotate relatively to jack, and the spring is compressed to store energy or is extended to release energy. The invention has the advantages of simple structure, long service life, convenient installation, convenient adjustment and the like.

Description

Automatic door closing hinge
Technical Field
The invention relates to the field of hardware, in particular to an automatic door closing hinge.
Background
At present, common hinges on the market only can play a hinging role, the door is opened and closed without buffering, a door stopper is required to be fixed after the door is opened, the use is very inconvenient, and a hydraulic hinge structure with an automatic door closing function is too complex, the reliability is not high, and the cost is high.
Disclosure of Invention
The invention aims to provide an automatic door closing hinge, which solves the problems of complex structure, high manufacturing cost, troublesome installation, short service life, poor buffering performance and the like of the existing automatic door closer.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides an automatic door-closing hinge, includes but relative rotation's last hinge and lower hinge, the one side of going up the hinge is equipped with the hinge sleeve pipe, one side of lower hinge is equipped with lower hinge sleeve pipe, its characterized in that: an upper ejector block is arranged in the upper hinge sleeve in a non-relatively-rotatable manner; the lower hinge sleeve is internally provided with a lower ejector block in a non-relatively rotatable manner, the upper ejector block and the lower ejector block are matched with each other through a concave-convex surface, the lower end of the lower ejector block is provided with a cavity, the top of the cavity is provided with an upper end surface of the cavity, and the upper end surface of the cavity is provided with a through hole; an adjusting rod is arranged on the upper ejector block and extends into the cavity of the lower ejector block through a through hole on the upper end surface of the cavity of the lower ejector block, and an upward adjusting rod lower end surface is provided at the lower end of the adjusting rod; a spring is arranged between the upper end surface of the cavity and the lower end surface of the adjusting rod; when the upper hinge and the lower hinge rotate relatively, the upper ejector block and the lower ejector block are driven to rotate relatively, the upper ejector block and the lower ejector block are mutually ejected and separated or close to each other through concave and convex surfaces, when the upper ejector block and the lower ejector block are separated, the upper end surface of the cavity and the lower end surface of the adjusting rod are synchronously close to each other, and the spring is compressed to store energy; when the upper ejector block and the lower ejector block are close to each other, the upper end face of the cavity and the lower end face of the adjusting rod are synchronously separated, and the spring is stretched to release energy.
Furthermore, the upper hinge sleeve and the upper top block are mutually nested through a concave-convex structure, so that the upper hinge sleeve and the upper top block are mutually non-rotatable but movable along the axis of the upper hinge sleeve.
Furthermore, the lower hinge sleeve and the lower ejector block are mutually nested through a concave-convex structure, so that the lower hinge sleeve and the lower ejector block are mutually non-rotatable but movable along the axis of the lower hinge sleeve.
Furthermore, one end of each of the upper hinge sleeve and the lower hinge sleeve is provided with an end cover, and the other end of each of the upper hinge sleeve and the lower hinge sleeve is matched with each other through a gasket or a plane bearing.
Furthermore, the upper ejector block and the lower ejector block are matched with each other through a concave-convex surface, and the concave-convex surface is a spiral surface.
Furthermore, the upper ejector block and the lower ejector block are matched with each other through a concave-convex surface, and the concave-convex surface is a plane or an arc surface.
Furthermore, the lower end of the adjusting rod is fixedly connected with a piston, the piston moves up and down in a cavity of the lower ejector block, and the upper surface of the piston is used as the lower end face of the adjusting rod.
Furthermore, an adjusting screw thread is arranged at the upper end of the adjusting rod, an adjusting nut is screwed on the adjusting screw thread and pushes the lower surface of the nut against the upper ejector block, and the adjusting nut can be rotated to pull the adjusting rod to move relative to the upper ejector block so as to adjust the force when the door is closed.
Furthermore, an upper closed space is formed between the upper surface of the piston and the upper end surface of the cavity of the lower top block, the space is filled with a medium, a micro through hole is formed in the piston or the adjusting rod, and the medium is forced to enter and exit the upper closed space through the micro through hole by the movement of the piston.
Furthermore, the bottom of the cavity of the lower ejector block is fixedly provided with a lower ejector block end cover, a lower closed space is formed between the lower ejector block end cover and the lower surface of the piston, when the piston moves upwards, the medium flows into the lower closed space after flowing out of the upper closed space, otherwise, the medium flows backwards.
Furthermore, a one-way valve is arranged between the upper closed space and the lower closed space, particularly the one-way valve is arranged on the adjusting rod, and the one-way valve is opened when the piston moves upwards and closed when the piston moves downwards.
Furthermore, a concave pit is formed in the end cover of the lower top block, a boss is arranged on the lower surface of the piston, when the piston moves downwards to be close to the bottom, the boss extends into the concave pit, a medium in the concave pit is pressed, and the medium can only flow out from a fit clearance between the boss and the concave pit, so that the force and the speed of the door when the door is closed are further buffered.
The technical scheme of the invention has the following beneficial effects: simple structure, long service life goes up the hinge and all can split with lower hinge during the installation, and easy to assemble can easily adjust the power way of closing the door through adjusting nut, through the medium flow between airtight space and the airtight space down in the control, can cushion the speed of closing the door.
The present invention is further described below in conjunction with the drawings and the examples, and it should be understood that the following detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Drawings
Fig. 1 is a three-dimensional view of the automatic door closing hinge of the present invention in an open state.
Fig. 2 is a three-dimensional exploded view of the automatic door closing hinge of the present invention in an open state.
Fig. 3 is a partial sectional view of the automatic door closing hinge according to the present invention in an open state.
Fig. 4 is a sectional view a-a of the automatic door closing hinge of the present invention in an open state.
Fig. 5 is a partial cross-sectional view of the automatic door closing hinge of the present invention in a closed door state.
Detailed Description
The present invention is explained below with reference to fig. 1 to 5.
The utility model provides an automatic door-closing hinge, includes but relative rotation's last hinge 1 and lower hinge 2, one side of going up hinge 1 is equipped with hinge sleeve pipe 101, one side of lower hinge 2 is equipped with lower hinge sleeve pipe 201, its characterized in that: an upper top block 3 is arranged in the upper hinge sleeve 101 in a non-relatively rotatable manner; a lower top block 4 is arranged in the lower hinge sleeve 201 in a non-relatively rotatable manner, the upper top block 3 and the lower top block 4 are matched with each other through a concave-convex surface, the lower end of the lower top block 4 is provided with a cavity 401, the top of the cavity 401 is provided with a cavity upper end surface 402, and the cavity upper end surface 402 is provided with a through hole 403; an adjusting rod 5 is arranged on the upper top block 3, the adjusting rod 5 extends into a cavity 401 of the lower top block 4 through a through hole 403 on the upper end surface 402 of the cavity of the lower top block 4, and an upward adjusting rod lower end surface 501 is arranged at the lower end of the adjusting rod 5; a spring 6 is arranged between the upper end surface 402 of the cavity and the lower end surface 501 of the adjusting rod; when the upper hinge 1 and the lower hinge 2 rotate relatively, the upper ejector block 3 and the lower ejector block 4 are driven to rotate relatively, the upper ejector block 3 and the lower ejector block 4 are pushed against and separated or approach each other through concave and convex surfaces, when the upper ejector block 3 and the lower ejector block 4 are separated, the upper end surface 402 of the cavity and the lower end surface 501 of the adjusting rod approach synchronously, and the spring 6 is compressed to store energy; when the upper top block 3 and the lower top block 4 are close to each other, the upper end surface 402 of the cavity and the lower end surface 501 of the adjusting rod are synchronously separated, and the spring 6 is extended to release energy.
The upper hinge sleeve 101 and the upper ejector block 3 can be nested with each other through a concave-convex structure, as shown in fig. 1, the groove 102 is formed in the upper hinge sleeve 101, the projection 301 is formed in the upper ejector block 3, and the projection 301 is nested in the groove 102, so that the upper hinge sleeve 101 and the upper ejector block 3 are not rotatable but movable along the axis of the upper hinge sleeve 101, and when the door is rotated, the upper ejector block 3 can move, but the lower ejector block 4 is fixed relative to the door frame.
Of course, the lower hinge sleeve 201 and the lower top block 4 may be nested with each other through a concave-convex structure, as shown in fig. 1, a groove 202 is formed on the lower hinge sleeve 201, a protrusion 406 is formed on the lower top block 4, and the protrusion 406 is nested in the groove 202, so that the lower hinge sleeve 201 and the lower top block 4 are not rotatable but movable with respect to each other along the axis of the lower hinge sleeve 201, and thus when the door is rotated, the lower top block 4 is moved, but the upper top block 3 is fixed with respect to the door frame.
The end cover 7 is arranged at one end of the upper hinge sleeve 101, the end cover 8 is arranged at one end of the lower hinge sleeve 201, and the other ends of the upper hinge sleeve and the lower hinge sleeve are mutually matched through a gasket or a plane bearing or directly.
The upper ejector block 3 is provided with a concave-convex surface 302, the lower ejector block 4 is also provided with a concave-convex surface 404, the concave-convex surface 302 and the concave-convex surface 404 are helical surfaces, and the concave-convex surface 302 and the concave-convex surface 404 are matched with each other to push the upper ejector block 3 and the lower ejector block 4 to be separated or close to each other.
The above-mentioned upper ejector block 3 is provided with a concave-convex surface 303, the lower ejector block 4 is also provided with a concave-convex surface 405, the concave-convex surface 303 and the concave-convex surface 405 are planes, and they are mutually matched to control the friction force when the upper ejector block 3 and the lower ejector block 4 relatively rotate, and of course, the cambered surfaces between the concave-convex surface 303 and the concave-convex surface 302 and between the concave-convex surface 404 and the concave-convex surface 405 can be excessive.
The concave-convex surface 303 may be a spiral surface opposite to the concave-convex surface 302, and the concave-convex surface 405 may be a spiral surface opposite to the concave-convex surface 404, so that the door may be rotated to the position of automatically closing the door only by a certain force after being opened.
Further, a piston 503 and a seal ring 10 are fixedly connected to the lower end of the adjustment rod 5, the piston 503 moves up and down in the cavity 401 of the lower top block, and the upper surface of the piston 503 serves as the lower end surface 501 of the adjustment rod.
Furthermore, an adjusting screw thread 502 is arranged at the upper end of the adjusting rod 5, an adjusting nut 9 is screwed on the adjusting screw thread 502 and pushes the lower surface of the nut 9 against the upper top block 3, the adjusting rod 5 can be pulled to move relative to the upper top block 3 by rotating the adjusting nut 9 so as to adjust the force when the door is closed, and a plane bearing 15 or a gasket can be arranged between the adjusting nut 502 and the upper top block 3 in order to reduce the friction force.
Furthermore, an upper enclosed space is formed between the upper surface 501 of the piston and the upper end surface 402 of the cavity of the lower top block, the space is filled with a medium, a micro through hole 505 is arranged on the piston 503 or the adjusting rod 5, and the movement of the piston 503 forces the medium to enter and exit the upper enclosed space through the micro through hole 505.
Further, a lower top block end cover 11 is fixedly arranged at the bottom of the cavity 401 of the lower top block, a lower closed space is formed between the lower top block end cover 11 and the lower surface of the piston 503, when the piston 503 moves upwards, the medium flows into the lower closed space after flowing out from the upper closed space, otherwise, the medium flows backwards.
Further, a check valve 12 is disposed between the upper and lower enclosed spaces, and particularly, the check valve 12 is disposed on the adjusting rod 5, so that the check valve 12 is opened when the piston 503 moves upward, i.e., corresponding to pushing open the door, to reduce resistance when the door is opened, and the check valve 12 is closed when the piston 503 moves downward, i.e., corresponding to closing the door, to buffer the speed of closing the door.
Furthermore, a concave pit 111 is arranged on the lower top block end cover 11, a boss 504 is arranged on the lower surface of the piston 503, when the piston 503 moves downwards to be close to the bottom, the boss 504 extends into the concave pit 111, and the medium in the concave pit 111 is pressed and only flows out from a matching gap between the boss 504 and the concave pit 111, so that the force and the speed of the door when the door is closed are buffered.
The medium may be oil or gas or other liquid.
As shown in fig. 5, in the door closing state, the upper top block 3 and the lower top block 4 approach to the bottom under the tension of the spring 6, the door is closed, the process is the process of releasing energy of the spring 6, so the door can be automatically closed, and the piston 503 is also moving in the process of releasing energy or accumulating energy of the spring 6, so the controllable flow of the medium in the upper closed space and the lower closed space is caused, and the door closing speed is controlled.
Of course, the concave-convex surface adopted by the mutual matching motion of the upper ejector block 3 and the lower ejector block 4 can also be an inner cam structure, namely, the upper ejector block comprises a convex block such as a pin, the lower ejector block is provided with a cam groove, and then the relative motion between the upper ejector block 3 and the lower ejector block 4 is controlled by the motion of the pin in the cam groove; it is of course also possible to arrange the cam groove on the upper top block 4 and the pin on the lower top block 3.
Although the foregoing detailed description describes the preferred embodiment of the present invention, it should be understood that the present invention is capable of modification, variation and alteration without departing from the scope and full meaning of the appended claims.

Claims (12)

1. The utility model provides an automatic door-closing hinge, includes but relative rotation's last hinge and lower hinge, the one side of going up the hinge is equipped with the hinge sleeve pipe, one side of lower hinge is equipped with lower hinge sleeve pipe, its characterized in that:
an upper ejector block is arranged in the upper hinge sleeve in a non-relatively-rotatable manner;
the lower hinge sleeve is internally provided with a lower ejector block in a non-relatively rotatable manner, the upper ejector block and the lower ejector block are matched with each other through a concave-convex surface, the lower end of the lower ejector block is provided with a cavity, the top of the cavity is provided with an upper end surface of the cavity, and the upper end surface of the cavity is provided with a through hole;
an adjusting rod is arranged on the upper ejector block and extends into the cavity of the lower ejector block through a through hole on the upper end surface of the cavity of the lower ejector block, and an upward adjusting rod lower end surface is provided at the lower end of the adjusting rod;
a spring is arranged between the upper end surface of the cavity and the lower end surface of the adjusting rod;
when the upper hinge and the lower hinge rotate relatively, the upper ejector block and the lower ejector block are driven to rotate relatively, the upper ejector block and the lower ejector block are mutually ejected and separated or close to each other through concave and convex surfaces, when the upper ejector block and the lower ejector block are separated, the upper end surface of the cavity and the lower end surface of the adjusting rod are synchronously close to each other, and the spring is compressed to store energy; when the upper ejector block and the lower ejector block are close to each other, the upper end face of the cavity and the lower end face of the adjusting rod are synchronously separated, and the spring is stretched to release energy.
2. An automatic door-closing hinge according to claim 1, wherein: the upper hinge sleeve and the upper top block are mutually nested through a concave-convex structure, so that the upper hinge sleeve and the upper top block can not rotate but can move along the axis of the upper hinge sleeve.
3. An automatic door-closing hinge according to claim 1, wherein: the lower hinge sleeve and the lower ejector block are mutually nested through a concave-convex structure, so that the lower hinge sleeve and the lower ejector block can not rotate but move along the axis of the lower hinge sleeve.
4. An automatic door-closing hinge according to claim 1, wherein: and end covers are arranged at one ends of the upper hinge sleeve and the lower hinge sleeve, and the other ends of the upper hinge sleeve and the lower hinge sleeve are matched with each other through gaskets or plane bearings.
5. An automatic door-closing hinge according to claim 1, wherein: the upper ejector block and the lower ejector block are matched with each other through concave-convex surfaces, and the concave-convex surfaces are spiral surfaces.
6. An automatic door-closing hinge according to claim 1, wherein: the upper ejector block and the lower ejector block are mutually matched through concave-convex surfaces, and the concave-convex surfaces are planes or cambered surfaces.
7. An automatic door-closing hinge according to claim 1, wherein: the lower end of the adjusting rod is fixedly connected with a piston, the piston moves up and down in a cavity of the lower ejector block, and the upper surface of the piston is used as the lower end face of the adjusting rod.
8. An automatic door-closing hinge according to claim 7, wherein: the upper end of the adjusting rod is provided with an adjusting screw thread, an adjusting nut is screwed on the adjusting screw thread and pushes the lower surface of the nut against the upper ejector block, and the adjusting nut can be rotated to pull the adjusting rod to move relative to the upper ejector block so as to adjust the force when the door is closed.
9. An automatic door-closing hinge according to claim 7, wherein: an upper closed space is formed between the upper surface of the piston and the upper end surface of the cavity of the lower top block, a medium is filled in the space, a micro through hole is formed in the piston or the adjusting rod, and the medium is forced to enter and exit the upper closed space through the micro through hole by the movement of the piston.
10. An automatic door-closing hinge according to claim 9, wherein: the bottom of the cavity of the lower ejector block is fixedly provided with a lower ejector block end cover, a lower closed space is formed between the lower ejector block end cover and the lower surface of the piston, when the piston moves upwards, the medium flows into the lower closed space after flowing out of the upper closed space, otherwise, the medium flows backwards.
11. An automatic door-closing hinge according to claim 10, wherein: a one-way valve is arranged between the upper closed space and the lower closed space, particularly the one-way valve is arranged on the adjusting rod, and the one-way valve is opened when the piston moves upwards and closed when the piston moves downwards.
12. An automatic door-closing hinge according to claims 9 to 11, wherein: the lower ejector block end cover is provided with a pit, the lower surface of the piston is provided with a boss, when the piston moves downwards to be close to the bottom, the boss extends into the pit, a medium in the pit is pressed, and the medium can only flow out from a fit clearance between the boss and the pit, so that the force and the speed of the buffering door when the buffering door is closed are reduced.
CN201811077831.3A 2018-09-16 2018-09-16 Automatic door closing hinge Pending CN110905320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811077831.3A CN110905320A (en) 2018-09-16 2018-09-16 Automatic door closing hinge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811077831.3A CN110905320A (en) 2018-09-16 2018-09-16 Automatic door closing hinge

Publications (1)

Publication Number Publication Date
CN110905320A true CN110905320A (en) 2020-03-24

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ID=69812386

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811077831.3A Pending CN110905320A (en) 2018-09-16 2018-09-16 Automatic door closing hinge

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CN (1) CN110905320A (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1150738A (en) * 1997-08-04 1999-02-23 Haimetsuku:Kk Hinge with damper function
CN2464565Y (en) * 2000-10-06 2001-12-12 重庆汇洋减振器厂 Large flow and flow-saving type liquid damping shock-damper
CN2695576Y (en) * 2004-05-28 2005-04-27 潘教挺 Hinge for automatic door closing
CN201486334U (en) * 2009-05-31 2010-05-26 黄文朋 Automatic closing hinge
KR20100102315A (en) * 2009-03-11 2010-09-24 주식회사 델타아이티 Hinge device for a door
CN201620680U (en) * 2010-02-11 2010-11-03 郭文彬 Buffering hinge of self-closing door
CN203271390U (en) * 2013-05-28 2013-11-06 宁波市五角阻尼科技有限公司 Hydraulic buffering hinge capable of automatically closing door
US8683655B2 (en) * 2008-04-01 2014-04-01 Chan Ho Hong Separated type hinge apparatus with return function
CN207080074U (en) * 2016-12-31 2018-03-09 广东名门锁业有限公司 A kind of automatic door-closing and the door hinge of positioning

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1150738A (en) * 1997-08-04 1999-02-23 Haimetsuku:Kk Hinge with damper function
CN2464565Y (en) * 2000-10-06 2001-12-12 重庆汇洋减振器厂 Large flow and flow-saving type liquid damping shock-damper
CN2695576Y (en) * 2004-05-28 2005-04-27 潘教挺 Hinge for automatic door closing
US8683655B2 (en) * 2008-04-01 2014-04-01 Chan Ho Hong Separated type hinge apparatus with return function
KR20100102315A (en) * 2009-03-11 2010-09-24 주식회사 델타아이티 Hinge device for a door
CN201486334U (en) * 2009-05-31 2010-05-26 黄文朋 Automatic closing hinge
CN201620680U (en) * 2010-02-11 2010-11-03 郭文彬 Buffering hinge of self-closing door
CN203271390U (en) * 2013-05-28 2013-11-06 宁波市五角阻尼科技有限公司 Hydraulic buffering hinge capable of automatically closing door
CN207080074U (en) * 2016-12-31 2018-03-09 广东名门锁业有限公司 A kind of automatic door-closing and the door hinge of positioning

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Application publication date: 20200324