CN112412218A - Concealed automatic door closing hinge - Google Patents
Concealed automatic door closing hinge Download PDFInfo
- Publication number
- CN112412218A CN112412218A CN202011219885.6A CN202011219885A CN112412218A CN 112412218 A CN112412218 A CN 112412218A CN 202011219885 A CN202011219885 A CN 202011219885A CN 112412218 A CN112412218 A CN 112412218A
- Authority
- CN
- China
- Prior art keywords
- seat
- movable
- swing arm
- block
- rotating shaft
- 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
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Classifications
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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
- E05D3/00—Hinges with pins
- E05D3/06—Hinges with pins with two or more pins
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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
- E05D11/00—Additional features or accessories of hinges
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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
- E05D11/00—Additional features or accessories of hinges
- E05D11/08—Friction devices between relatively-movable hinge parts
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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
- E05D11/00—Additional features or accessories of hinges
- E05D11/10—Devices for preventing movement between relatively-movable hinge parts
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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
- E05D3/00—Hinges with pins
- E05D3/06—Hinges with pins with two or more pins
- E05D3/12—Hinges with pins with two or more pins with two parallel pins and one arm
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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
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- 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
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- 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
Abstract
The invention relates to the field of door hinges, in particular to a concealed automatic door closing hinge, and provides a concealed automatic door closing hinge which comprises a fixed seat arranged on a door frame, a movable seat arranged on a door leaf and a hinge assembly. The fixed seat comprises a fixed seat outer seat and a fixed seat inner seat; the movable seat comprises a movable seat outer seat, a movable seat fixed block, a movable sliding block and a buffer mechanism, wherein the movable seat fixed block, the movable sliding block and the buffer mechanism are fixed in the movable seat outer seat; the damper is embedded into the damping sleeve, the middle part of the damping shifting block and the middle part of the damping bearing are hinged with the spring clamping block, and the damping sleeve is embedded into the middle part of the spring; the hinge assembly includes a swing center arm and a swing center arm pivot.
Description
Technical Field
The invention relates to the field of door hinges, in particular to a concealed automatic door closing hinge.
Background
With social progress and scientific development, the technical level of products in China is continuously improved. There are new requirements for door hinges, and hinges with self-closing function have created a great deal of market demand. Hinge for door that has self-closing buffer function is mostly obviously adorns the hinge, and its shortcoming that exists is: the hinge is not attractive, and the whole effect of the door of the room is easy to damage due to the exposed part of the hinge. Although the traditional hidden door hinge is installed in a hidden way, the effect of automatic door closing cannot be realized.
Disclosure of Invention
The invention aims to overcome the defects and provides a concealed automatic door closing hinge which is arranged on a door, can not only play the effect of preventing a concealed door hinge from being exposed, but also realize the function of automatic slow closing after the door is opened. When the door opening angle is within the self-closing angle, the automatic slow door closing can be realized, and the self-closing angle range can be any value between 5 degrees and 180 degrees. Meanwhile, the invention also has the advantages of compact structure and silence.
The technical scheme adopted by the invention is as follows: a concealed automatic door closing hinge comprises a fixed seat arranged on a door frame, a movable seat arranged on a door leaf, and a hinge assembly for connecting the fixed seat and the movable seat, wherein the fixed seat comprises a fixed seat outer seat and a fixed seat inner seat, and a fixed seat inner seat groove is formed in the fixed seat outer seat; the movable seat comprises a movable seat outer seat, a movable seat fixing block, a movable sliding block and a buffer mechanism, and a movable sliding block groove is formed in the movable seat outer seat; a sliding block toggle pin shaft and a sliding block rolling surface are arranged on two sides of the movable sliding block; the damping mechanism comprises a damping sleeve, a spring, a damper, a hinge buckle, a damping shifting block and a damping bearing, wherein a spring clamping block is arranged at one end of the damping sleeve, and a damper caulking groove is formed in the middle of the damping sleeve; the movable sliding block is embedded into a movable sliding block groove in the outer seat of the movable seat, and the movable sliding block can slide in the range of the movable sliding block groove; the buffer mechanism is fixed in the outer seat of the movable seat, the damper is embedded in a damper embedding groove in the middle of the damping sleeve, and one end of the damper is hinged with one end of the hinge buckle; the other end of the hinge buckle is hinged with one end of the damping shifting block; the middle part of the damping shifting block is hinged with the spring clamping block; the middle part of the damping bearing is hinged with the spring clamping block, the damping bearing is abutted against the rolling surface of the sliding block, the damping sleeve is embedded into the middle part of the spring, and one end of the spring is abutted against the spring clamping block; the hinge assembly comprises a center swing arm and a center swing arm rotating shaft, and the center swing arm rotating shaft penetrates through the other end and two ends of the center swing arm and is connected with the movable sliding block.
The inside adjusting screw hole that is equipped with of fixing base outer seat, fixing base inner seat both ends are equipped with the adjusting screw, establish an adjusting screw embedding adjusting screw and adjusting screw downthehole, fix the fixing base inner seat in the fixing base outer seat.
The two sides of the movable seat outer seat are provided with movable seat pin holes, the middle part of the movable seat fixing block is embedded with a fixing block pin shaft, and the two ends of the fixing block pin shaft are embedded into the movable seat pin holes to fix the movable seat fixing block in the movable seat outer seat.
Buffer gear includes adjustable dog, it is equipped with adjustable dog hole to remove outer seat both ends of seat, adjustable dog is fixed in the adjustable dog hole on removing the outer seat of seat, and adjustable dog and damping sleeve other end are connected, and adjustable dog one end and spring butt can adjust the prestressing force of spring through the position of adjusting adjustable dog to the elasticity degree of adjustment switch door.
One end of the damping sleeve is provided with a damper blocking groove, one end of the damper is provided with a damper pin hole, and a damper pin shaft is embedded into the damper blocking groove and the damper pin hole to fix the damper in the damping sleeve.
One end of the sliding block rolling surface is an inclined surface, and the other end of the sliding block rolling surface is a straight surface.
The slider bearing sliding groove is arranged on two sides of the moving slider groove, a slider central rotating shaft is embedded in the middle of one end of the moving slider, slider bearings are arranged at two ends of the slider central rotating shaft, the slider bearings are embedded in the slider bearing sliding grooves, and the slider bearings can slide in the range of the slider sliding grooves of the moving seat.
The hinge assembly comprises a Y-shaped swing arm, a side swing arm, a fixed seat inner seat rotating shaft, a side swing arm rotating shaft, a Y-shaped swing arm rotating shaft, a center rotating shaft and a movable seat inner seat rotating shaft; the rotating shaft of the inner seat of the fixed seat penetrates through one end of the central rotating shaft, and two ends of the rotating shaft of the inner seat of the fixed seat are connected with the inner seat of the fixed seat; the side swing arm rotating shaft is fixed in the fixed seat inner seat, and two ends of the side swing arm rotating shaft are connected with one end of the side swing arm; the Y-shaped swing arm rotating shaft penetrates through one end and two ends of the Y-shaped swing arm and is connected with the other end of the side swing arm; the central rotating shaft penetrates through the middle part and two ends of the central swing arm and is connected with the Y-shaped swing arm; the rotating shaft of the inner seat of the movable seat penetrates through the other end and two ends of the Y-shaped swing arm to be connected with the fixed block of the movable seat.
The inside removal seat spring caulking groove that is equipped with of removal seat outer seat, removal seat fixed block one side is equipped with the fixed block spring caulking groove, spring one side embedding removes the seat spring caulking groove, the opposite side embedding fixed block spring caulking groove.
One end of the damping shifting block is provided with a shifting groove.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a fixing base of the present invention;
FIG. 3 is a schematic view of a movable base according to the present invention;
FIG. 4 is a schematic front view of the hinge assembly of the present invention;
FIG. 5 is a side view of the hinge assembly of the present invention;
FIG. 6 is a schematic sectional view illustrating the door-open state of the present invention;
fig. 7 is a sectional structure schematic view of the door closing state of the present invention.
In the figures, the reference numerals denote
1. The fixing seat comprises a fixing seat, 11 parts of a fixing seat outer seat, 111 parts of a fixing seat inner seat groove, 112 parts of an adjusting screw hole, 12 parts of a fixing seat inner seat, 121 parts of an adjusting screw hole and 13 parts of an adjusting screw;
2. a movable seat;
21. moving seat outer seat, 211, moving slider groove, 2111, slider bearing sliding groove, 212, moving seat spring caulking groove, 213, moving seat pin hole, 214, adjustable stop block hole;
22. a movable seat fixing block 221, a fixing block spring embedding groove 222 and a fixing block pin shaft;
23. 231. a movable slide block, 232. a slide block toggle pin shaft, 233. a slide block bearing, 234. a slide block rolling surface;
24. the damping device comprises a buffer mechanism, 241 damping sleeves, 2411 damper blocking grooves, 2412 spring clamping blocks, 2413 damper embedding grooves, 242 springs, 243 dampers, 2431 damper pin holes, 2432 damper pin shafts, 244 hinge buckles, 245 damping shifting blocks, 2451 shifting grooves, 246 damping bearings and 247 adjustable blocking blocks;
3. the hinge assembly comprises a Y-shaped swing arm, a center swing arm, a side swing arm, a fixed seat inner seat rotating shaft, a side swing arm rotating shaft, a Y-shaped swing arm rotating shaft, a center swing arm rotating shaft, a fixed seat inner seat.
Detailed Description
The concealed automatic door closing hinge comprises a fixed seat 1 installed on a door frame, a movable seat 2 installed on a door leaf, and a hinge assembly 3 for connecting the fixed seat 1 and the movable seat 2.
The fixing seat 1 comprises a fixing seat outer seat 11, a fixing seat inner seat 12 and an adjusting screw 13, a fixing seat inner seat groove 111 and an adjusting screw hole 112 are formed in the fixing seat outer seat 11, and adjusting screw holes 121 are formed in two ends of the fixing seat inner seat 12; the inner fixing seat 12 is fixed in the inner fixing seat groove 111, and the adjusting screw 13 is embedded in the adjusting screw hole 121 and the adjusting screw hole 112, so that the inner fixing seat 12 is fixed in the outer fixing seat 11.
The movable seat comprises a movable seat outer seat 21, a movable seat fixing block 22, a movable slider 23 and a buffer mechanism 24, wherein a movable slider groove 211 is arranged in the middle of the inner portion of the movable seat outer seat 21, movable seat spring caulking grooves 212 are arranged on two sides of the inner portion of the movable seat outer seat 21, slider bearing sliding grooves 2111 are arranged on two sides of the movable slider groove 211, movable seat pin holes 213 are arranged on two sides of the movable seat outer seat 21, and adjustable stop block holes 214 are arranged at two ends of the movable seat outer seat 21. A fixed block spring embedding groove 221 is formed in one side of the movable seat fixed block 22, and a fixed block pin shaft 222 is embedded in the middle of the movable seat fixed block 22. The middle part of one end of the movable sliding block 23 is embedded with a sliding block center rotating shaft 231, two ends of the sliding block center rotating shaft 231 are provided with sliding block bearings 233, two sides of the movable sliding block 23 are embedded with a sliding block toggle pin shaft 232 and a sliding block rolling surface 234, one end of the sliding block rolling surface 324 is an inclined surface, and the other end of the sliding block rolling surface is a straight surface. The buffer mechanism 24 comprises a damping sleeve 241, a spring 242, a damper 243, a hinge buckle 244, a damping shifting block 245, a damping bearing 246 and an adjustable stop block 247, wherein one end of the damping sleeve 241 is provided with a damper stop groove 2411, the other end of the damping sleeve 241 is provided with a spring stop block 2412, the middle part of the damping sleeve 241 is provided with a damper caulking groove 2413, and one end of the damper 243 is provided with a damper pin hole 2431; one end of the damping shifting block 245 is provided with a shifting groove 2451.
Two ends of the fixed block pin shaft 222 are embedded into the moving seat pin holes 213 to fix the moving seat fixed block 22 in the moving seat outer seat 21; the movable slider 23 is embedded in the movable slider groove 211 in the movable seat outer seat 21, the slider bearing 233 is embedded in the slider bearing sliding slot 2111, and the slider bearing 233 can slide in the slider bearing sliding slot 2111 range to drive the movable slider 23 to slide in the movable slider groove 211.
The buffer mechanism 224 is fixed in the moving seat outer seat 21, and one side of the spring 242 is embedded in the moving seat spring embedding groove 212, and the other side is embedded in the fixed block spring embedding groove 221; the damper 2411 is embedded into a damper embedding groove 2413 in the middle of the damping sleeve 241, a damper pin shaft 2432 is embedded into the damper blocking groove 2411 and a damper pin hole 2431 to fix the damper 243 in the damping sleeve 241, and the other end of the damper 243 is hinged with one end of the hinge buckle 244; the other end of the hinge buckle 244 is hinged with one end of a damping shifting block 245; the middle part of the damping shifting block 245 is hinged with a spring clamping block 2412; the middle part of the damping bearing 246 is hinged with the spring fixture block 2412, and the damping bearing 246 is abutted with the sliding block rolling surface 234; the adjustable stopper 247 is fixed in the adjustable stopper hole 214 on the movable seat outer seat 21, and the adjustable stopper 246 is connected with the other end of the damping sleeve 241; the damping sleeve 241 is embedded in the middle of the spring 242, one end of the spring 242 abuts against the spring latch 2412, and the other end abuts against the adjustable stopper 247.
The hinge assembly 3 comprises a Y-shaped swing arm 31, a central swing arm 32, a side swing arm 33, a fixed seat inner seat rotating shaft 34, a side swing arm rotating shaft 35, a Y-shaped swing arm rotating shaft 36, a central rotating shaft 37, a central swing arm rotating shaft 38 and a movable seat inner seat rotating shaft 39. The fixed seat inner seat rotating shaft 34 penetrates through one end of the central swing arm 32, and two ends of the fixed seat inner seat rotating shaft 34 are connected with the fixed seat inner seat 12; the side swing arm rotating shaft 35 is fixed in the fixed seat inner seat 12, and two ends of the side swing arm rotating shaft are connected with one end of the side swing arm 33; the rotating shaft of the Y-shaped swing arm 36 penetrates through one end and two ends of the Y-shaped swing arm 31 to be connected with the other end of the side swing arm 33; the central rotating shaft 37 passes through the middle part and two ends of the central swing arm 32 and is connected with the Y-shaped swing arm 36; the central swing arm rotating shaft 38 passes through the other end and two ends of the central swing arm 32 and is connected with the movable sliding block 23; the moving seat inner seat rotating shaft 39 penetrates through the other end and two ends of the Y-shaped swing arm 31 to be connected with the moving seat fixing block 22.
When the door leaf is in the state of opening the door, the damping bearing is abutted to the straight surface of the sliding block rolling surface, and the spring is in a compressed state.
When the door is closed, the hinge assembly drives the movable sliding block to slide towards the inner side of the outer seat of the movable seat along the movement of the door leaf, and the damping bearing rolls from a straight surface to a slope surface along the sliding block rolling surface of the movable sliding block. When the damping bearing rolls to the inclined plane, under the action of the spring force, the damping bearing has a component force towards the inner side of the outer seat of the movable seat to the movable sliding block, the movable sliding block is forced to continuously slide towards the inner side of the outer seat of the movable seat, and the hinge starts to be automatically closed. The movable sliding block continues to slide until a sliding block toggle pin shaft on the movable sliding block is embedded into a toggle groove on the damping toggle block, the sliding block toggle pin shaft drives the damping toggle block to rotate towards the inner side of the outer seat of the movable seat, the damper is stretched and triggered, under the action of damping force, the sliding speed of the movable sliding block towards the inner side of the outer seat of the movable seat is slowed down, and the door is slowly closed.
When the door is opened, the hinge assembly drives the movable sliding block to slide towards the outer side of the outer seat of the movable seat along the movement of the door leaf, and the damping bearing rolls from the inclined surface to the straight surface along the sliding block rolling surface of the movable sliding block. The spring is forced to compress and store energy, the sliding block poking pin shaft drives the damping poking block to rotate towards the outer side of the outer seat of the movable seat, the damper is compressed until the sliding block poking pin shaft is disengaged from a poking groove in the damping poking block, the door is continuously opened, the spring is continuously compressed until the damping bearing rolls to the straight surface of the movable sliding block, the energy storage of the spring is finished, and the door can be continuously opened to 108 degrees. In the process of energy storage of the spring, the external force for opening the door is removed at any angle, and the door can be automatically closed. The tightness degree of the opening and closing door can be adjusted by adjusting the position of the adjustable stop block, so that the hand feeling of opening the door is improved.
Claims (10)
1. The utility model provides a concealed installation automatic door closing hinge, is including installing the fixing base on the door frame, installing the removal seat on the door leaf, connecting the fixing base and removing the hinge subassembly of seat, characterized by: the fixed seat comprises a fixed seat outer seat and a fixed seat inner seat, and a fixed seat inner seat groove is formed in the fixed seat outer seat; the movable seat comprises a movable seat outer seat, a movable seat fixing block, a movable sliding block and a buffer mechanism, and a movable sliding block groove is formed in the movable seat outer seat; the side surface of the movable sliding block is provided with a sliding block toggle pin shaft and a sliding block rolling surface; the damping mechanism comprises a damping sleeve, a spring, a damper, a hinge buckle, a damping shifting block and a damping bearing, wherein a spring clamping block is arranged at one end of the damping sleeve, and a damper caulking groove is formed in the middle of the damping sleeve; the movable sliding block is embedded into a movable sliding block groove in the outer seat of the movable seat, and the movable sliding block can slide in the range of the movable sliding block groove; the buffer mechanism is fixed in the outer seat of the movable seat, the damper is embedded in a damper embedding groove in the middle of the damping sleeve, and one end of the damper is hinged with one end of the hinge buckle; the other end of the hinge buckle is hinged with one end of the damping shifting block; the middle part of the damping shifting block is hinged with the spring clamping block; the middle part of the damping bearing is hinged with the spring clamping block, the damping bearing is abutted against the rolling surface of the sliding block, the damping sleeve is embedded into the middle part of the spring, and one end of the spring is abutted against the spring clamping block; the hinge assembly comprises a center swing arm and a center swing arm rotating shaft, and the center swing arm rotating shaft penetrates through the other end and two ends of the center swing arm and is connected with the movable sliding block.
2. A concealed automatic door closing hinge according to claim 1, wherein: the inside adjusting screw hole that is equipped with of fixing base outer seat, fixing base inner seat both ends are equipped with the adjusting screw, establish an adjusting screw embedding adjusting screw and adjusting screw downthehole, fix the fixing base inner seat in the fixing base outer seat.
3. A concealed automatic door closing hinge according to claim 1, wherein: the two sides of the movable seat outer seat are provided with movable seat pin holes, the middle part of the movable seat fixing block is embedded with a fixing block pin shaft, and the two ends of the fixing block pin shaft are embedded into the movable seat pin holes to fix the movable seat fixing block in the movable seat outer seat.
4. A concealed automatic door closing hinge according to claim 1, wherein: buffer gear includes adjustable dog, it is equipped with adjustable dog hole to remove outer seat both ends of seat, adjustable dog is fixed in the adjustable dog hole on removing the outer seat of seat, and adjustable dog and damping sleeve other end are connected, and adjustable dog one end and spring butt can adjust the prestressing force of spring through the position of adjusting adjustable dog to the elasticity degree of adjustment switch door.
5. A concealed automatic door closing hinge according to claim 1, wherein: one end of the damping sleeve is provided with a damper blocking groove, one end of the damper is provided with a damper pin hole, and a damper pin shaft is embedded into the damper blocking groove and the damper pin hole to fix the damper in the damping sleeve.
6. A concealed automatic door closing hinge according to claim 1, wherein: one end of the sliding block rolling surface is an inclined surface, and the other end of the sliding block rolling surface is a straight surface.
7. A concealed automatic door closing hinge according to claim 1, wherein: the slider bearing sliding groove is arranged on two sides of the moving slider groove, a slider central rotating shaft is embedded in the middle of one end of the moving slider, slider bearings are arranged at two ends of the slider central rotating shaft, the slider bearings are embedded in the slider bearing sliding grooves, and the slider bearings can slide in the range of the slider sliding grooves of the moving seat.
8. A concealed automatic door closing hinge according to claim 1, wherein: the hinge assembly comprises a Y-shaped swing arm, a side swing arm, a fixed seat inner seat rotating shaft, a side swing arm rotating shaft, a Y-shaped swing arm rotating shaft, a center rotating shaft and a movable seat inner seat rotating shaft; the rotating shaft of the inner seat of the fixed seat penetrates through one end of the central rotating shaft, and two ends of the rotating shaft of the inner seat of the fixed seat are connected with the inner seat of the fixed seat; the side swing arm rotating shaft is fixed in the fixed seat inner seat, and two ends of the side swing arm rotating shaft are connected with one end of the side swing arm; the Y-shaped swing arm rotating shaft penetrates through one end and two ends of the Y-shaped swing arm and is connected with the other end of the side swing arm; the central rotating shaft penetrates through the middle part and two ends of the central swing arm and is connected with the Y-shaped swing arm; the rotating shaft of the inner seat of the movable seat penetrates through the other end and two ends of the Y-shaped swing arm to be connected with the fixed block of the movable seat.
9. A concealed automatic door closing hinge according to claim 1, wherein: the inside removal seat spring caulking groove that is equipped with of removal seat outer seat, removal seat fixed block one side is equipped with the fixed block spring caulking groove, spring one side embedding removes the seat spring caulking groove, the opposite side embedding fixed block spring caulking groove.
10. A concealed automatic door closing hinge according to claim 1, wherein: one end of the damping shifting block is provided with a shifting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219885.6A CN112412218A (en) | 2020-11-05 | 2020-11-05 | Concealed automatic door closing hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011219885.6A CN112412218A (en) | 2020-11-05 | 2020-11-05 | Concealed automatic door closing hinge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112412218A true CN112412218A (en) | 2021-02-26 |
Family
ID=74827537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011219885.6A Pending CN112412218A (en) | 2020-11-05 | 2020-11-05 | Concealed automatic door closing hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112412218A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922476A (en) * | 2021-02-09 | 2021-06-08 | 广东名门锁业有限公司 | Door hinge |
| WO2022170786A1 (en) * | 2021-02-09 | 2022-08-18 | 广东名门锁业有限公司 | Door hinge |
| CN115856228A (en) * | 2023-02-21 | 2023-03-28 | 四川省公路规划勘察设计研究院有限公司 | Tunnel harmful gas monitoring device |
-
2020
- 2020-11-05 CN CN202011219885.6A patent/CN112412218A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922476A (en) * | 2021-02-09 | 2021-06-08 | 广东名门锁业有限公司 | Door hinge |
| CN112922476B (en) * | 2021-02-09 | 2021-11-23 | 广东名门锁业有限公司 | Door hinge |
| WO2022170786A1 (en) * | 2021-02-09 | 2022-08-18 | 广东名门锁业有限公司 | Door hinge |
| CN115856228A (en) * | 2023-02-21 | 2023-03-28 | 四川省公路规划勘察设计研究院有限公司 | Tunnel harmful gas monitoring device |
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