CN113047722B - Buffer for closing door - Google Patents
Buffer for closing door Download PDFInfo
- Publication number
- CN113047722B CN113047722B CN202110540581.8A CN202110540581A CN113047722B CN 113047722 B CN113047722 B CN 113047722B CN 202110540581 A CN202110540581 A CN 202110540581A CN 113047722 B CN113047722 B CN 113047722B
- Authority
- CN
- China
- Prior art keywords
- door
- block
- rod
- deflector rod
- base
- 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.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 230000000087 stabilizing effect Effects 0.000 claims description 14
- 238000013016 damping Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The invention relates to a door and window assembly, and discloses a door closing buffer, which comprises a limiting block and a buffer device; the limiting block is arranged on the door frame; the buffer device is arranged on the door plate; a limiting rail is arranged on the limiting block; a rack is arranged in the limit rail; the buffer device comprises a base, a sliding block, a deflector rod and a transmission rod; the base is provided with a rotating shaft and a lower rail; the sliding block is hinged with the transmission rod through a rotating shaft; the deflector rod is positioned in the lower rail; a stop part is arranged at one end of the lower rail; the deflector rod is movably connected with the sliding block and the transmission rod; a rotary damper matched with the rack is arranged at one end of the transmission rod, which is far away from the deflector rod; a torsion spring is arranged on the base; one end of the torsion spring is connected with the base, the other end is connected with the deflector rod. The door plate is provided with the buffer device at the side far away from the hinge, and the kinetic energy of the door plate is eliminated through the rotary damper, so that the door closing buffer is realized.
Description
Technical Field
The present disclosure relates to door and window assemblies, and more particularly to a door closing buffer.
Background
When the door is opened, the door is easy to be driven to be closed by external force, and the door plate is stressed too much under the common conditions, so that the door plate and the door frame are large in impact force, and the door is too loud in door closing sound and even damaged. To prevent door closing collisions and excessive sound, a damping device is mounted on the door or door frame, and currently there are spring damped dampers or hydraulic damped door closers. The spring damping shock absorber reduces the impact between the door plate and the door frame in an energy absorption mode, the speed of the door plate in the closing process is not actually reduced, and the force of the door plate when contacting the spring damping shock absorber is still large; the hydraulic buffering door closer is multipurpose and fire prevention fire door, installs in the one side of door plant hinge generally, provides resistance through hydraulic pressure for the door plant slowly is close to the door frame when closing the door, and this kind of door closer usually needs very big effort just can open, and the people switch difficulty that effort is less. The Chinese patent with the publication number of CN211874224U discloses a guide type door buffer, a foldable guide rod is arranged on one side of a door plate far away from a hinge, a ramp type buffer device is arranged at a corresponding position of a door frame, kinetic energy of the door plate is released in advance through the guide rod and the ramp of the buffer device, impact force of the door plate to the door frame is reduced, the technical scheme occupies a large space, the passing space is influenced, and the ramp length of the buffer device in the technical scheme is not easy to control.
Disclosure of Invention
The invention solves the technical problem of providing a door closing buffer, wherein a buffer device is arranged on the side, far away from a hinge, of a door plate, and the kinetic energy of the door plate is eliminated through a rotary damper, so that the door closing buffer is realized.
The technical scheme adopted for solving the technical problems is as follows: a door closing buffer comprises a limiting block and a buffer device; the limiting block is arranged on the door frame; the buffer device is arranged on the door plate; a limiting rail is arranged on the limiting block; a rack is arranged in the limit rail; the buffer device comprises a base, a sliding block, a deflector rod and a transmission rod; the base is provided with a rotating shaft and a lower rail; the sliding block is hinged with the transmission rod through a rotating shaft; the deflector rod is positioned in the lower rail; a stop part is arranged at one end of the lower rail; the deflector rod is movably connected with the sliding block and the transmission rod; a rotary damper matched with the rack is arranged at one end of the transmission rod, which is far away from the deflector rod; a torsion spring is arranged on the base; one end of the torsion spring is connected with the base, the other end is connected with the deflector rod.
Further is: the base is provided with an adjusting screw and an adjusting block; one end of the torsion spring is connected with the adjusting block.
Further is: the adjusting block is provided with a threaded through hole; the adjusting screw is screwed into the threaded through hole of the adjusting block.
Further is: the limit rail is not parallel to the cross beam of the door frame.
Further is: the cushioning device also includes a stabilizing block.
Further is: the stabilizing block is arranged on the base through a plurality of positioning pins; an upper rail is arranged on the stabilizing block; the upper rail is consistent with the lower rail in structure.
Further is: the upper end of the deflector rod extends into the upper rail.
Further is: a poking piece is arranged on the poking rod; the sliding block is provided with a blind hole; the poking piece is provided with a connecting pin; the connecting pin is inserted into the blind hole of the sliding block.
Further is: one end of the transmission rod, which is close to the deflector rod, is provided with a transmission notch; the deflector rod is clamped in the transmission notch.
Further is: the buffer device also comprises a long magnet and a short magnet; the long magnet is arranged on the stabilizing block; the short magnet is arranged on the limiting block; the long magnet and the short magnet attract each other.
The beneficial effects of the invention are as follows: the motion track of the transmission rod is limited through the limiting track, and the kinetic energy of the door plate is counteracted through the rotary damper. The driving rod drives the deflector rod to move in the lower track, after the door plate is closed, the deflector rod is clamped at one end of the track by the elastic force provided by the torsion spring, and the deflector rod clamps the driving rod, so that the door plate can be prevented from rebounding after being closed; the long magnet and the short magnet attract each other and can provide the pulling force of closing the door when the door panel is close to the door frame. After the door is opened, the deflector rod is clamped into the stop part, so that the deflector rod can be prevented from being pushed back to the other end of the rail by the torsion spring, and the phenomenon that the bearing cannot scratch into the limit rail when the door is closed due to the deviation of the transmission rod is avoided. One end of the torsion spring is connected with the adjusting block, the position of the adjusting block can be controlled by the adjusting screw, the adjustment of the elasticity of the torsion spring is realized, and the excessive elasticity of the torsion spring is prevented from damaging the balance of the buffering supporting rod; the limiting rail is not parallel to the door frame cross beam, so that the upper bearing of the transmission rod can conveniently slide into the rail, and the thrust required by door opening can be reduced; the upper track on the stabilizing block and the lower track on the base form a double-layer track for limiting the movement of the deflector rod, so that the stability of the movement of the deflector rod can be improved, and the stability of the buffer can be improved.
Drawings
FIG. 1 is a schematic diagram of a door closing damper installation;
FIG. 2 is an exploded view of a buffer device;
FIG. 3 is a schematic view of a base structure;
FIG. 4 is a schematic view of a door in a just-opened state;
FIG. 5 is a schematic view of a door closed condition;
Fig. 6 is a schematic diagram of the positional relationship between a long magnet and a short magnet.
Marked in the figure as: 1. a door frame; 11. a door panel; 2. a limiting block; 21. a limit rail; 22. a rack; 3. a buffer device; 301. a long magnet; 302. a short magnet; 31. a base; 311. an adjusting screw; 32. a lower rail; 321. a stopper; 33. a torsion spring; 331. an adjusting block; 34. a slide block; 35. a deflector rod; 351. a pulling piece; 36. a transmission rod; 361. a rotary damper; 362. a transmission notch; 37. a rotating shaft; 38. a stabilizing block; 381. and (5) an upper rail.
Detailed Description
The present invention will be further described in detail with reference to the drawings and examples, which are only for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
Examples
As shown in fig. 1 to 3, a door closing buffer includes a stopper 2 and a buffer device 3; the limiting block 2 is arranged on the door frame 1; the buffer device 3 is arranged on the door plate 11; the method is characterized in that: a limiting rail 21 is arranged on the limiting block 2; a rack 22 is arranged in the limit rail 21; the buffer device 3 comprises a base 31, a sliding block 34, a deflector rod 35 and a transmission rod 36; the base 31 is provided with a rotating shaft 37 and a lower rail 32; the sliding block 34 is hinged with the transmission rod 36 through a rotating shaft 37; the deflector rod 35 is positioned in the lower rail 32; a stop portion 321 is disposed at one end of the lower rail 32; the deflector rod 35 is movably connected with the sliding block 34 and the transmission rod 36; a rotary damper 361 matched with the rack 22 is arranged on one end of the transmission rod 36 away from the deflector rod 35; a torsion spring 33 is arranged on the base 31; one end of the torsion spring 33 is connected with the base 31, and the other end is connected with the deflector rod 35.
On the basis of the above, the base 31 is provided with an adjusting screw 311 and an adjusting block 331; one end of the torsion spring 33 is connected with the adjusting block 331.
On the basis of the above, a threaded through hole is arranged on the adjusting block 331; the adjusting screw 311 is screwed into the threaded through hole of the adjusting block 331.
On the basis of the above, the limit rail 21 is not parallel to the beam of the door frame 1.
On the basis of the above, the damping device 3 further comprises a stabilizing block 38.
On the basis of the above, the stabilizing block 38 is mounted on the base 31 by a plurality of positioning pins; an upper track 381 is provided on the stabilizing block 38; the upper track 381 is structurally identical to the lower track 32.
On the basis of the above, the upper end of the deflector rod 35 extends into the upper rail 381.
On the basis of the above, a shifting piece 351 is arranged on the shifting lever 35; the slide block 34 is provided with a blind hole; a connecting pin is arranged on the poking piece 351; the connecting pin is inserted into a blind hole of the slider 34.
On the basis of the above, one end of the transmission rod 36, which is close to the deflector rod 35, is provided with a transmission notch 362; the deflector rod 35 is clamped in the transmission notch 362.
On the basis of the above, as shown in fig. 6, the buffer device 3 further includes a long magnet 301 and a short magnet 302; the long magnet 301 is disposed on the stabilizing block 38; the short magnet 302 is arranged on the limiting block 2; the long magnet 301 and the short magnet 302 attract each other. When the door panel 11 approaches the door frame 1, the long magnet 301 and the short magnet 302 attract each other to provide a pulling force for closing the door, so as to avoid the untight closing of the door.
In the initial state, as shown in fig. 5, the door is in a closed state, and at this time, the rotation damper 361 is located in the limit rail 21, and the torsion spring 33 clamps the deflector rod 35 to one side of the lower rail 32 and the upper rail 381 near the door frame. When the door panel 11 is opened, the first stage is a door opening state, as shown in fig. 4, in the process, the door panel 11 receives a pushing force, and the pushing force is transmitted to the deflector rod 35 through the transmission rod 36, so that the deflector rod 35 overcomes the elasticity of the torsion spring 33 to slide along the lower rail 32 and the upper rail 381, and the rotary damper 361 slides outwards along the limit rail 21 and the rack 22; when the deflector rod 35 slides to the stop portion 321 and is clamped in the stop portion 321, the rotary damper 361 just breaks away from the limit rail 21, the buffer support rod 39 stretches out to the maximum, and the deflector rod 35 cannot be pulled back to the other ends of the lower rail 32 and the upper rail 381 by the torsion spring 33 due to the deflector rod 35 clamped in the stop portion 321, and the buffer device 3 keeps the current state all the time under the condition that no external force exists, namely, the deflector rod 35 is clamped in the stop portion 321. When the door panel 11 is closed, before the door panel 11 contacts the door frame 1, the rotary damper 361 slides into the limit rail 21 first, so that the transmission rod 36 rotates along the rotating shaft 37, the transmission rod 36 dials the deflector rod 35 out of the stop portion 321, so that the deflector rod 35 slides to one end of the lower rail 32 and the upper rail 381, which is close to the door frame 1, and the door closing action is completed; during the door closing operation, the rotary damper 361 moves along the limit rail 21 and the rack 22, and the force applied by the door closing is counteracted by the damping of the rotary damper 36, so that the door closing buffer is realized.
The elastic force of the torsion spring 33 can be adjusted through the adjusting screw 311, and the compression state of one end of the torsion spring 33 can be changed by rotating the adjusting screw 311 to change the position of the adjusting block 331, so that the elastic force of the other end of the torsion spring 33 is changed.
The above embodiments should not limit the present invention in any way, and all technical solutions obtained by equivalent substitution or equivalent conversion fall within the protection scope of the present invention.
Claims (8)
1. A door closing buffer comprises a limiting block (2) and a buffer device (3); the limiting block (2) is arranged on the door frame (1);
The buffer device (3) is arranged on the door plate (11); the method is characterized in that: a limiting rail (21) is arranged on the limiting block (2);
a rack (22) is arranged in the limit track (21); the buffer device (3) comprises a base (31), a sliding block (34), a deflector rod (35) and a transmission rod (36); a rotating shaft (37) and a lower rail (32) are arranged on the base (31); the sliding block (34) is hinged with the transmission rod (36) through a rotating shaft (37); the deflector rod (35) is positioned in the lower rail (32); a stop part (321) is arranged at one end of the lower rail (32); the deflector rod (35) is movably connected with the sliding block (34) and the transmission rod (36); a rotary damper (361) matched with the rack (22) is arranged at one end of the transmission rod (36) far away from the deflector rod (35); a torsion spring (33) is arranged on the base (31); one end of the torsion spring (33) is connected with the base (31), and the other end of the torsion spring is connected with the deflector rod (35); a poking piece (351) is arranged on the poking rod (35); a blind hole is formed in the sliding block (34); a connecting pin is arranged on the poking piece (351); the connecting pin is inserted into a blind hole of the sliding block (34); one end of the transmission rod (36) close to the deflector rod (35) is provided with a transmission notch (362); the deflector rod (35) is clamped in the transmission notch (362).
2. A door closing buffer according to claim 1, wherein: an adjusting screw (311) and an adjusting block (331) are arranged on the base (31); one end of the torsion spring (33) is connected with the adjusting block (331).
3. A door closing buffer according to claim 2, characterized in that: the adjusting block (331) is provided with a threaded through hole; the adjusting screw (311) is screwed into the threaded through hole of the adjusting block (331).
4. A door closing buffer according to claim 1, wherein: the limit rail (21) is not parallel to the cross beam of the door frame (1).
5. A door closing buffer according to claim 1, wherein: the damping device (3) further comprises a stabilizing block (38).
6. A door closing buffer according to claim 5, wherein: the stabilizing block (38) is arranged on the base (31) through a plurality of positioning pins; an upper track (381) is arranged on the stabilizing block (38); the upper track (381) is structurally identical to the lower track (32).
7. A door closing buffer according to claim 6, wherein: the upper end of the deflector rod (35) extends into the upper track (381).
8. A door closing buffer according to claim 1, wherein: the buffer device (3) further comprises a long magnet (301) and a short magnet (302); the long magnet (301) is arranged on the stabilizing block (38); the short magnet (302) is arranged on the limiting block (2); the long magnet (301) and the short magnet (302) attract each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540581.8A CN113047722B (en) | 2021-05-18 | 2021-05-18 | Buffer for closing door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110540581.8A CN113047722B (en) | 2021-05-18 | 2021-05-18 | Buffer for closing door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113047722A CN113047722A (en) | 2021-06-29 |
| CN113047722B true CN113047722B (en) | 2024-09-17 |
Family
ID=76518441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110540581.8A Active CN113047722B (en) | 2021-05-18 | 2021-05-18 | Buffer for closing door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113047722B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338742B (en) * | 2021-07-21 | 2024-09-13 | 苏州升德精密电气有限公司 | Mute door stopper |
| CN115822409B (en) * | 2022-11-14 | 2024-08-09 | 福建西河卫浴科技有限公司 | A rotating shaft door assembly and a buffer device thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215212958U (en) * | 2021-05-18 | 2021-12-17 | 苏州升德精密电气有限公司 | A closed door buffer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080088731A (en) * | 2007-03-30 | 2008-10-06 | 김광련 | Hinge and Shock Absorber Damper |
| CN201412007Y (en) * | 2009-02-27 | 2010-02-24 | 何颖琦 | Limiting buffer device |
| CN107401340B (en) * | 2017-08-23 | 2023-04-25 | 张秦鸣 | A door suction structure |
| CN109972951B (en) * | 2019-03-23 | 2023-09-15 | 广东星徽精密制造股份有限公司 | Automatic turn-up door buffering hinge of opening and close |
| CN112554714A (en) * | 2020-11-28 | 2021-03-26 | 温州赛球家具科技有限公司 | Windproof mechanical wooden door structure capable of preventing door closer from falling off |
-
2021
- 2021-05-18 CN CN202110540581.8A patent/CN113047722B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN215212958U (en) * | 2021-05-18 | 2021-12-17 | 苏州升德精密电气有限公司 | A closed door buffer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113047722A (en) | 2021-06-29 |
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