CN108798335A - A kind of damp hinge - Google Patents

A kind of damp hinge Download PDF

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Publication number
CN108798335A
CN108798335A CN201810931158.9A CN201810931158A CN108798335A CN 108798335 A CN108798335 A CN 108798335A CN 201810931158 A CN201810931158 A CN 201810931158A CN 108798335 A CN108798335 A CN 108798335A
Authority
CN
China
Prior art keywords
connector
oil cylinder
hinge
damping unit
column foot
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
CN201810931158.9A
Other languages
Chinese (zh)
Inventor
吴腾庆
吴积庆
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.)
Guangdong Jin Li Xiang Xing Hardware Precision Manufacturing Co Ltd
Original Assignee
Guangdong Jin Li Xiang Xing Hardware Precision Manufacturing Co Ltd
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 Guangdong Jin Li Xiang Xing Hardware Precision Manufacturing Co Ltd filed Critical Guangdong Jin Li Xiang Xing Hardware Precision Manufacturing Co Ltd
Priority to CN201810931158.9A priority Critical patent/CN108798335A/en
Priority claimed from PCT/CN2018/108925 external-priority patent/WO2020034348A1/en
Publication of CN108798335A publication Critical patent/CN108798335A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05DHINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00Hinges with pins
    • E05D3/06Hinges with pins with two or more pins
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12Mechanisms in the shape of hinges or pivots, operated by springs
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00Braking devices, e.g. checks; Stops; Buffers
    • E05F5/02Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
    • E05F5/027Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops with closing action
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/20Application of doors, windows, wings or fittings thereof for furnitures, e.g. cabinets

Abstract

The present invention relates to a kind of damp hinges, including hinge cups, hinge arm, torsional spring, the first connector, the second connector and damping unit, one end of first connector and the second connector is jointly hinged with hinge cups, the other end of first connector and the second connector is hinged with one end of hinge arm respectively, torsional spring is inserted in the hinged place of the first connector and hinge arm, damping unit is arranged in hinge arm, and the other end of the second connector mutually links with damping unit and damping unit is made to generate cushioned resistance with the rotation of the second connector.The damping unit of the present invention is simple, compact-sized firm with the connection of other spare and accessory parts, and installation is more convenient, and buffering effect is more preferable, and door-plate is made slowly mildly to close, and eliminates the strike note of door-plate and door cabinet.The present invention has the function of limiting cushioned resistance simultaneously, when because of hinge usage time is too long, torsional spring is tired or door-plate to cause very much to close a dynamics again inadequate, and lead to that door-plate is made not close or when closing velocity is too slow, this function can be opened.

Description

A kind of damp hinge
Technical field
The present invention relates to a kind of hinge more particularly to a kind of damp hinges.
Background technology
Damp hinge adapts to the closing velocity of door by a kind of completely new technology, it effectively prevents the cabinet of furniture item The restoring force that is subject in moving process of door and collide with cabinet, having firmly to close the door also can softly close, ensure household The comfortable advantage of environment quiet, therefore be commonly used and arrive in modern furniture.Damping unit and its are typically provided in damp hinge His connector, the effect for buffering of closing the door are realized by damping unit.The connection type of existing damping unit and other connectors Still extremely complex, connection accessory is more, and structure is not firm enough, and buffering effect is bad.
Invention content
In view of the deficiencies of the prior art, the present invention intends to provide a kind of stable structure, good buffer effect Damp hinge.
To achieve the above object, the present invention can be achieved by the following technical programs:
A kind of damp hinge, including hinge cups, hinge arm, torsional spring, the first connector, the second connector and damping unit, it is described One end of first connector and the second connector is jointly hinged with hinge cups, the other end of first connector and the second connector Hinged with one end of hinge arm respectively, the torsional spring is inserted in the hinged place of the first connector and hinge arm, and the damping unit setting exists In hinge arm, the other end of second connector mutually links with damping unit and damping unit is made to turn with the second connector It moves and generates cushioned resistance.
Further, second connector is equipped with bending hook part close to one end of damping unit, and the damping unit is equipped with The lug boss mutually linked with bending hook part.
Further, the damping unit includes oil cylinder slide and oil cylinder, and the bottom of the oil cylinder slide, which is equipped with, places oil The mounting groove of cylinder, the mounting groove are equipped with the first opening close to one end of torsional spring, and one end of the oil cylinder is placed in the first opening And inconsistent with the spring coil outer rim of torsional spring, the other end of the oil cylinder installation groove groove wall opposite with the first opening is inconsistent, The side of the oil cylinder and the installation groove groove wall of the first opening both sides are inconsistent.
Further, the damping unit includes oil cylinder slide and oil cylinder, and the bottom of the oil cylinder slide, which is equipped with, places oil The mounting groove of cylinder, the mounting groove are equipped with the first opening close to one end of torsional spring, and one end of the oil cylinder is placed in the first opening And inconsistent with the spring coil outer rim of torsional spring, the other end of the oil cylinder installation groove groove wall opposite with the first opening is inconsistent, The side of the oil cylinder and the installation groove groove wall of the first opening both sides are inconsistent, and the lug boss is arranged on oil cylinder slide.
Further, the bottom of the damping unit is equipped with support axis, the both sides riveting of the support axis and hinge arm.
Further, the front end of the piston rod of the oil cylinder is fixed with conflict piece.
Further, on the oil cylinder slide it is opposite with lug boss to one end be equipped with limiting section, the damp hinge Further include at least one switch, the bottom of the switch is equipped with the first column foot and the second column foot, the hinge arm at least side It is equipped with pilot hole and mounting hole accordingly;The first column foot press turns then to exist with lug boss, limiting section upwards after entering pilot hole In same horizontal line, hinge opens then that the first column foot is between lug boss and limiting section completely at this time, hinge at this time It completely closes, the first column foot, which is located at the right side of limiting section and limits damping unit, generates cushioned resistance;Described first Column foot turn downwards along pilot hole then with lug boss, limiting section not in the same horizontal line.
Further, the bottom of the first column foot and limiting section is opposite ramp structure, in hinge closing process Described in limiting section ramp structure oppress the first column foot ramp structure so that limiting section is forced through the first column foot.
Further, the bottom of the second column foot is equipped with the second opening and is equipped with stage portion in the outside of bottom.
Further, one end of first connector and the second connector is jointly hinged with hinge cups by U-shaped needle.
Compared with prior art, the connection of damping unit Yu other spare and accessory parts of the invention is simple, compact-sized firm, peace Dress is more convenient, and buffering effect is more preferable, and door-plate is made slowly mildly to close, and eliminates the strike note of door-plate and door cabinet.The present invention simultaneously Have the function of limiting cushioned resistance, when because hinge usage time is too long, torsional spring is tired or door-plate causes very much to close a dynamics again Not enough, lead to that door-plate is made not close or when closing velocity is too slow, this function can be opened, to ensure to close door dynamics and Speed.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention;
Fig. 2 is the semi-section structural schematic diagram of the present invention;
Fig. 3 is the decomposition texture schematic diagram of the present invention;
Fig. 4 is the structural schematic diagram of the oil cylinder slide of the present invention;
Fig. 5 is the structural schematic diagram of the oil cylinder of the present invention;
Fig. 6 is the structural schematic diagram of the switch of the present invention;
Fig. 7 is the partial enlarged view of full open position of the present invention;
Fig. 8 is of the invention from the partial enlarged view for being opened to closing process state;
Fig. 9 is the partial enlarged view of completely closed state of the present invention;
Figure 10 is the state diagram of closing motion process after present invention limitation pooling feature;
Figure 11 is the state diagram of opening action process after present invention limitation pooling feature;
Figure 12 is the state diagram of closing motion process when the non-pooling feature of the present invention limits;
Figure 13 is the state diagram of opening action process when the non-pooling feature of the present invention limits;
In figure:1, hinge cups;2, hinge arm;21, pilot hole;22, mounting hole;3, torsional spring;4, the first connector;5, the second connection Part;51, bending hook part;6, damping unit;61, oil cylinder slide;611, mounting groove;612, the first opening;613, lug boss;614, it limits Position portion;62, oil cylinder;621, cylinder barrel;622, spring;623, piston;624, piston rod;625, piece is contradicted;7, it switchs;71, first Column foot;72, the second column foot;721, the second opening;722, stage portion;8, U-shaped needle;9, support axis.
Specific implementation mode
Below in conjunction with attached drawing and specific implementation mode, the present invention is further illustrated:
As shown in Figures 1 to 3, damp hinge of the present invention, including hinge cups 1, hinge arm 2, torsional spring 3, the first connector 4, It is cut with scissors jointly with hinge cups 1 by U-shaped needle 8 one end of second connector 5 and damping unit 6, the first connector 4 and the second connector 5 It connects, the other end of the first connector 4 and the second connector 5 is hinged with one end of hinge arm 2 respectively by axis pin, axis pin and hinge arm 2 Both sides riveting, torsional spring 3 is inserted in the first connector 4 at the hinging pin shaft of hinge arm 2, and damping unit 6 is arranged in hinge arm 2.The The other end of two connectors 5 links with 6 phase of damping unit and damping unit 6 is made to be generated with the rotation of the second connector 5 Cushioned resistance, specifically, the second connector 5 is fixed with bending hook part 51 close to one end of damping unit 6, damping unit 6 is fixed Equipped with the lug boss 613 linked with 51 phase of bending hook part.
Damping unit 6 includes oil cylinder slide 61 and oil cylinder 62.Oil cylinder 62 includes cylinder barrel 621, the bullet being mounted in cylinder barrel 621 One end of spring 622, piston 623 and piston rod 624, piston 623 connects piston rod 624, the upper termination of the other end and spring 622 It touches, piston rod 624 stretches out outside cylinder barrel 621.The bottom of oil cylinder slide 61 is equipped with the mounting groove 611 for placing oil cylinder 62, mounting groove 611 Be equipped with the first opening 612 close to one end of torsional spring 3, one end of oil cylinder 62 be placed at the first opening 612 and with the spring coil of torsional spring 3 Outer rim is inconsistent, and the other end of oil cylinder 62 mounting groove 611 cell wall opposite with the first opening 612 is inconsistent, the side of oil cylinder 62 It is inconsistent with 611 cell wall of mounting groove of the first 612 both sides of opening.When the bottom of oil cylinder 62 be placed at the first opening 612 and with When the spring coil outer rim of torsional spring 3 is inconsistent, then the piston rod of oil cylinder 62 offsets with 612 opposite 611 cell wall of mounting groove of the first opening It touches;At the piston rod of oil cylinder 62 is placed in the first opening 612 and when inconsistent with the spring coil outer rim of torsional spring 3, then oil cylinder 62 Bottom mounting groove 611 cell wall opposite with the first opening 612 is inconsistent.It, can in order to increase the forced area of 624 front end of piston rod It is fixedly connected in the front end of piston rod 624 and contradicts piece 625, as shown in Figure 5.Mounting groove 611 can be designed as side and bottom The U-lag of opening, i.e., flute profile as shown in Figure 4.The lug boss 613 linked with 5 bending hook part of the second connector, 51 phase is specifically fixed Be arranged on oil cylinder slide 61, on oil cylinder slide 61 with lug boss 613 it is opposite to one end be equipped with limiting section 614.
Oil cylinder slide 61 and oil cylinder 62 are fallen out of hinge arm 2 in order to prevent, and the bottom of damping unit 6 is (i.e. close to mounting groove At 611 groove faces) it is equipped with support axis 9, support axis 9 and the both sides of hinge arm 2 rivet.
The invention also includes at least one switches 7, as shown in fig. 6, the bottom of switch 7 is equipped with the first column foot 71 and second Column foot 72, at least side of hinge arm 2 are equipped with pilot hole 21 and mounting hole 22 accordingly.It presses in first column foot, 71 alignment guide hole 21 Enter, the second column foot 72 is directed at mounting hole 22 and is pressed into, and switch 7 is rotatable after indentation, after the first column foot 71 is pressed into pilot hole 21 Turn upwards then with lug boss 613, limiting section 614 in the same horizontal line, hinge opens then 71, the first column foot completely at this time Between lug boss 613 and limiting section 614, hinge completely closes the right side that then the first column foot 71 is located at limiting section 614 at this time And it limits damping unit 6 and generates cushioned resistance;First column foot 71 along pilot hole 21 downwards turn then with lug boss 613, limit Position portion 614 is not in the same horizontal line;Corresponding " off " and " open " mark can be set on hinge arm 2.First column foot 71 and limit The bottom in position portion 614 is opposite ramp structure, and the ramp structure of limiting section 614 oppresses the first column in hinge closing process The ramp structure of foot 71 makes limiting section 614 be forced through the first column foot 71.The bottom of second column foot 72 is equipped with the second opening 721 and it is equipped with stage portion 722 in the outside of bottom, the second column foot 72 is facilitated easily indentation mounting hole 22 and to prevent second Column foot 72 deviates from mounting hole 22.In order to ensure to limit the effect of cushioned resistance, a switch 7 can be respectively set in the both sides of hinge arm 2.
As illustrated in figures 7-11, before 1 closing motion of hinge cups with the second column foot 72 of switch 7 be axle center will switch 7 it is past The directions off turn-knob makes lug boss 613, the limiting section 614 of the first column foot 71 and oil cylinder slide 61 of switch 7 be in same water On horizontal line, hinge cups 1 close rotation and oil cylinder slide 61 are driven to be moved toward 2 cephalad direction of hinge arm, when 61 limiting section 614 of oil cylinder slide When the ramp structure of 71 bottom of ramp structure and the first column foot contacts, mobile pulling force the first column of compressing of oil cylinder slide 61 is past It rises outside, limiting section 614 is made to be forced through, after limiting section 614 passes through, switch 7 oppresses to know outward to be put, and the first column foot 71 is inwardly Bottom of its bottom less than the limiting section 614 of oil cylinder slide 61 is resetted, the trailing flank of limiting section 614 is supported by the first column foot 71 It touches, when hinge cups 1 activate to open action, the first column foot 71 limits oil cylinder slide 61 and moved toward 2 tail portion of hinge arm, but hinge cups 1 are still It can so continue to open, only when hinge cups 1 are again started up closing motion, the pooling feature of hinge is limited, and at this time second Bending hook part 51 on connector 5 is rotated not into arm by the cushioned resistance of oil cylinder slide 61, bending hook part 51 and lug boss 613 It is separation, the dynamics and speed that hinge cups 1 are closed are unaffected.Such as to restore pooling feature, by switch 7 toward the directions open Turn-knob, the first column foot 71 of switch 7 is the limiting section 614 for avoiding oil cylinder slide 61 completely at this time, will not interfere with cylinder cunning The normal damping movement and reset movement of seat 61.It is closed when hinge usage time is too long, torsional spring 3 is tired or door-plate is too heavy caused Door dynamics is inadequate, causes door-plate not to close or when closing velocity is too slow, can switch 7 be turned to off, so that door is closed in guarantee Dynamics and speed.
Hinge closing motion process:
As shown in figure 12, hinge cups 1 are fixed on door-plate, and hinge arm 2 is fixed on the inside of a cabinet, and hinge cups 1 are big to closing direction rotation When about 30 angle, hinge cups 1 are driven to be rotated to closing direction from the torsion of torsional spring 3, hinge cups 1 drive the first connector 4 and second to connect Fitting 5 rotates, when the second connector 5 is rotated as axle center to closing direction using hinging pin shaft, the bending hook part 51 on the second connector 5 The lug boss 613 being arranged on oil cylinder slide 61 can be contradicted, and oil cylinder slide 61 is driven to be moved toward 2 cephalad direction of hinge arm, simultaneously Oil cylinder 62 in the mounting groove 611 of oil cylinder slide 61 is offseted with the spring coil for support, bottom and torsional spring 3 on the outside of cylinder barrel It touches, so that the resistance of oil cylinder 62 is passed through in piston rod power transmission to the madial wall of oil cylinder slide 61, slow down the mobile speed of oil cylinder slide 61 Degree, while the movement speed that oil cylinder slide 61 slows down makes the velocity of rotation of hinge cups 1 slow down by the second connector 5, keeps door-plate slow Slowly it mildly closes, eliminates the strike note of door-plate and door cabinet.
Hinge opening action process:
As shown in figure 13, when hinge cups 1 are rotated to opening direction, the second connector 5 is axle center to opening side using hinging pin shaft To rotation, the bending hook part 51 on the second connector 5 can leave the lug boss 613 of oil cylinder slide 61, while in 62 cylinder barrel of oil cylinder The elastic force of spring makes piston rod ejection that oil cylinder slide 61 be driven to be moved toward 2 caudal directions of hinge arm, after hinge cups 1 are opened, hinge Chain is returned to state before closing motion.
For those skilled in the art, it is various corresponding that other can be made according to above technical scheme and design Change and deformation, and all these change and distortions should all belong within the protection domain of the claims in the present invention.

Claims (10)

1. a kind of damp hinge, including hinge cups, hinge arm, torsional spring, the first connector, the second connector and damping unit, described One end of a connection piece and the second connector is jointly hinged with hinge cups, the other end point of first connector and the second connector Not hinged with one end of hinge arm, the torsional spring is inserted in the hinged place of the first connector and hinge arm, and the damping unit setting is being cut with scissors In arm, it is characterised in that:The other end of second connector mutually links with damping unit and makes damping unit with second The rotation of connector and generate cushioned resistance.
2. damp hinge according to claim 1, it is characterised in that:Second connector is close to one end of damping unit Equipped with bending hook part, the damping unit is equipped with the lug boss mutually linked with bending hook part.
3. damp hinge according to claim 1, it is characterised in that:The damping unit includes oil cylinder slide and oil cylinder, The bottom of the oil cylinder slide is equipped with the mounting groove for placing oil cylinder, and the mounting groove is equipped with the first opening close to one end of torsional spring, One end of the oil cylinder is placed in the first opening and, the other end of the oil cylinder and first inconsistent with the spring coil outer rim of torsional spring The opposite installation groove groove wall that is open is inconsistent, and the side of the oil cylinder and the installation groove groove wall of the first opening both sides are inconsistent.
4. damp hinge according to claim 2, it is characterised in that:The damping unit includes oil cylinder slide and oil cylinder, The bottom of the oil cylinder slide is equipped with the mounting groove for placing oil cylinder, and the mounting groove is equipped with the first opening close to one end of torsional spring, One end of the oil cylinder is placed in the first opening and, the other end of the oil cylinder and first inconsistent with the spring coil outer rim of torsional spring The opposite installation groove groove wall that is open is inconsistent, and the side of the oil cylinder and the installation groove groove wall of the first opening both sides are inconsistent, institute Lug boss is stated to be arranged on oil cylinder slide.
5. damp hinge according to claim 4, it is characterised in that:The bottom of the damping unit is equipped with support axis, institute The both sides for stating support axis and hinge arm rivet.
6. damp hinge according to claim 4 or 5, it is characterised in that:The front end of the piston rod of the oil cylinder is fixed and is set There is conflict piece.
7. damp hinge according to claim 6, it is characterised in that:On the oil cylinder slide it is opposite with lug boss to One end is equipped with limiting section, and the damp hinge further includes at least one switch, the bottom of the switch be equipped with the first column foot and Second column foot, the hinge arm at least side are equipped with pilot hole and mounting hole accordingly;The first column foot press enters pilot hole Afterwards upwards turn then with lug boss, limiting section in the same horizontal line, at this time hinge completely open then the first column foot be located at Between lug boss and limiting section, hinge completely closes at this time, and the first column foot is located at the right side of limiting section and limits resistance Buddhist nun's device generates cushioned resistance;The first column foot turns downwards along pilot hole then with lug boss, limiting section not in same water On horizontal line.
8. damp hinge according to claim 7, it is characterised in that:The bottom of the first column foot and limiting section is phase To ramp structure, the ramp structure that the ramp structure of the limiting section described in hinge closing process oppresses the first column foot makes limit Position portion is forced through the first column foot.
9. damp hinge according to claim 8, it is characterised in that:The bottom of the second column foot is equipped with the second opening And it is equipped with stage portion in the outside of bottom.
10. damp hinge according to claim 1, it is characterised in that:The one of first connector and the second connector End is jointly hinged with hinge cups by U-shaped needle.
CN201810931158.9A 2018-08-15 2018-08-15 A kind of damp hinge Pending CN108798335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810931158.9A CN108798335A (en) 2018-08-15 2018-08-15 A kind of damp hinge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810931158.9A CN108798335A (en) 2018-08-15 2018-08-15 A kind of damp hinge
PCT/CN2018/108925 WO2020034348A1 (en) 2018-08-15 2018-09-30 Damping hinge

Publications (1)

Publication Number Publication Date
CN108798335A true CN108798335A (en) 2018-11-13

Family

ID=64080251

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810931158.9A Pending CN108798335A (en) 2018-08-15 2018-08-15 A kind of damp hinge

Country Status (1)

Country Link
CN (1) CN108798335A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020107943A1 (en) * 2018-11-27 2020-06-04 广东金利祥兴五金精密制造有限公司 Damping hinge
WO2020124567A1 (en) * 2018-12-17 2020-06-25 广东金利祥兴五金精密制造有限公司 Hinge cup assembly and american damping hinge
WO2020124568A1 (en) * 2018-12-17 2020-06-25 广东金利祥兴五金精密制造有限公司 Combined main body and damping hinge
WO2020155276A1 (en) * 2019-02-01 2020-08-06 吴腾庆 Combining body and two-section damping hinge

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020107943A1 (en) * 2018-11-27 2020-06-04 广东金利祥兴五金精密制造有限公司 Damping hinge
WO2020124567A1 (en) * 2018-12-17 2020-06-25 广东金利祥兴五金精密制造有限公司 Hinge cup assembly and american damping hinge
WO2020124568A1 (en) * 2018-12-17 2020-06-25 广东金利祥兴五金精密制造有限公司 Combined main body and damping hinge
WO2020155276A1 (en) * 2019-02-01 2020-08-06 吴腾庆 Combining body and two-section damping hinge

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