CN109779509B - Anti-falling device for rolling door - Google Patents
Anti-falling device for rolling door Download PDFInfo
- Publication number
- CN109779509B CN109779509B CN201910138509.5A CN201910138509A CN109779509B CN 109779509 B CN109779509 B CN 109779509B CN 201910138509 A CN201910138509 A CN 201910138509A CN 109779509 B CN109779509 B CN 109779509B
- Authority
- CN
- China
- Prior art keywords
- electromagnet
- fixed
- door curtain
- door
- stop
- 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
Images
Landscapes
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses an anti-falling device for a roller shutter door, which is mainly used for preventing the roller shutter door from falling down to hurt people, has simple structure, can prevent the roller shutter door from falling down in various states, and has safe and reliable protection; it is composed of a pair of stop devices and a trigger device; the working principle is as follows: when the door curtain of the roller shutter door rises and stops, the electromagnets A and B of the pair of stopping devices are powered off at the same time, the spring elastically extends, and drives the piston and the stopping plates to move towards the inner surfaces of the U-shaped bottom plates of the left and right door curtain sliding sleeves respectively and to prop against the inner surfaces of the U-shaped bottom plates, and at the moment, the pair of stopping devices can prevent the door curtain from falling despite the unhooking, breaking or other abnormal conditions of the chain wheel of the driving device of the door curtain; when the door curtain of the rolling door descends, if the door curtain suddenly falls down for some reason, the triggering device triggers the electromagnetic switch to act, the power supply of the electromagnet A and the electromagnet B of the pair of stopping devices is cut off, and the left stopping plate and the right stopping plate respectively abut against the inner surface of the U-shaped bottom plate to prevent the door curtain from falling down.
Description
Technical Field
The invention is mainly used for preventing the roller shutter door from falling down to hurt people.
Background
The anti-falling device for the rolling door which is applied or used at present has a complex structure and high maintenance cost.
Disclosure of Invention
The invention solves the problems, has simple structure, can prevent the roller shutter door from falling down in various states, and has safe and reliable protection; the device consists of a pair of stop devices (1) and a trigger device (8); the piston cylinders (2) of the pair of stop devices (1) are respectively fixed with the lower ends of the left side and the right side of the lowermost loose leaf (16) of the curtain (15) of the rolling door; the right stop device (1) of the lowermost hinge (16) consists of a piston cylinder (2), an electromagnet A (3), an electromagnet B (4), a spring (5), a piston (6) and a stop plate (7), the left end of the electromagnet A (3) is fixed with the bottom of the piston cylinder (2), the right end of the electromagnet A (3) is fixed with the left end of the spring (5), the right end of the spring (5) is fixed with the left end of the electromagnet B (4), the right end of the electromagnet B (4) is fixed with the left end of the piston (6), the right end of the piston (6) is fixed with the left end of the stop plate (7), the right end of the stop plate (7) faces towards the inner surface of the U-shaped bottom plate of the door curtain sliding sleeve (17), the right end of the stop plate (7) is provided with a friction surface which has an anti-slip function, and all components of the left stop device (1) of the lowermost hinge (16) are completely the same as all components of, the positions of the two are mirror images, an electromagnetic switch (19) is respectively arranged on a power supply loop (24) of a pair of stop devices (1), the electromagnetic switch (19) consists of a movable electromagnet (20) and a fixed electromagnet (21), the power supply loop (24) on the left is fixed with the center of the movable electromagnet (20), an electrode A (22) is fixed at the right end, the power supply loop (24) on the right is fixed with the center of the fixed electromagnet (21), an electrode B (23) is fixed at the left end, the power supply loops of the movable electromagnet (20) and the fixed electromagnet (21) are connected with an outgoing line of a stator coil (14) of a semicircular stator (9) of a trigger device (8), when the current of the movable electromagnet (20) and the fixed electromagnet (21) is less than a certain value, only a repulsive force is generated between the movable electromagnet (20) and the fixed electromagnet (21), but separation movement is not generated, and when the current of the movable electromagnet (20) and, are mutually exclusive and separated from each other; the trigger device (8) is composed of a semicircular stator (9), a rotor (10), a rotor shaft (12) and a stator shell (13), wherein the rotor (10) is provided with a plurality of permanent magnets (11) which are uniformly distributed, the front inner side and the rear inner side of the stator shell (13) of the semicircular stator (9) are fixed with stator coils (14), the left half part of the rotor (10) is exposed out of the stator shell (13), the rim of the rotor (10) is provided with a friction surface, the rim of the left end of the rotor (10) is propped against the inner surface of a U-shaped bottom plate of a left door curtain sliding sleeve (17), and the stator shell (13) is fixed with the left side of a hinge (; the working principle is as follows: when the door curtain (15) of the rolling door is driven by a driving device to rise and stop, the electromagnets A (3) and B (4) of the stopping devices (1) are powered off simultaneously, the spring (5) extends elastically and drives the piston (6) and the stopping plate (7) to move towards the inner surfaces of the U-shaped bottom plates of the left and right door curtain sliding sleeves (17) respectively and abut against the inner surfaces of the U-shaped bottom plates, at the moment, the stopping devices (1) can prevent the door curtain (15) from falling down regardless of the unhooking, breaking or other abnormal conditions of chain wheels of the driving device of the door curtain (15), and when the door curtain (15) of the rolling door is driven by the driving device to fall, the electromagnets A (3) and B (4) of the stopping devices (1) are powered on simultaneously, the electromagnets A (3) and B (4) attract each other and drive the pistons (6) and the stopping plate (7) to leave the inner surfaces of the U-shaped bottom plates of the left and right door curtain sliding sleeves (17) respectively, the door curtain (15) slides downwards at a normal speed, simultaneously the rotor (10) of the trigger device (8) rotates at the normal speed along with the sliding of the door curtain (15), a plurality of uniformly distributed permanent magnets (11) of the rotor (10) sweep a stator coil (14) of the semicircular stator (9), the generated induced current is also small, the movable electromagnet (20) and the fixed electromagnet (21) of the electromagnetic switch (19) only generate repulsive force under the action of the small induced current but are not separated from each other, the electrode A (22) and the electrode B (23) are kept in a contact state, if the chain wheel of a driving device of the door curtain (15) is unhooked and broken, the door curtain (15) suddenly drops and drives the rotor (10) of the trigger device (8) to suddenly accelerate, the generated induced current suddenly increases, and the increased repulsive force between the movable electromagnet (20) and the fixed electromagnet (21) of the electromagnetic switch (19), the movable electromagnet (20) and the fixed electromagnet (21) are separated from each other and drive the electrode A (22) and the electrode B (23) to be separated, power supplies of the electromagnet A (3) and the electromagnet B (4) of the pair of stop devices (1) are disconnected, the springs (5) of the pair of stop devices (1) extend elastically and drive the pistons (6) and the stop plates (7) to move towards the inner surfaces of the U-shaped bottom plates of the left door curtain sliding sleeves (17) and the right door curtain sliding sleeves (17) respectively and abut against the inner surfaces of the U-shaped bottom plates, and therefore the door curtains (15) are prevented from falling down.
Drawings
1-stop device, 2-piston cylinder, 3-electromagnet A, 4-electromagnet B, 5-spring, 6-piston, 7-stop plate, 8-trigger device, 9-semicircular stator, 10-rotor, 11-permanent magnet, 12-rotor shaft, 13-stator shell, 14-stator coil, 15-door curtain, 16-loose leaf, 17-door curtain sliding sleeve, 19-electromagnetic switch, 20-movable electromagnet, 21-fixed electromagnet, 22-electrode A, 23-electrode B and 24-power supply circuit.
Fig. 1 is a schematic elevation view of the present invention.
Fig. 2 is a broad view of the stop device.
Fig. 3 is an elevational view of the trigger device.
Fig. 4 is an exploded perspective view of the trigger device.
Fig. 5 is a cross-sectional view a-a of the trigger device.
Fig. 6 is a cross-sectional view of the electromagnetic switch.
Detailed Description
Referring to fig. 1 to 6, when the curtain 15 of the roll-up door is driven by the driving device to rise and stop, the electromagnet A3 and the electromagnet B4 of the pair of stopping devices 1 are simultaneously de-energized, the spring 5 elastically extends and drives the piston 6 and the stopping plate 7 to respectively move towards the inner surfaces of the U-shaped bottom plates of the left and right curtain sliding sleeves 17 and abut against the inner surfaces of the U-shaped bottom plates, at this time, the pair of stopping devices 1 can prevent the curtain 15 from falling down regardless of the unhooking, breaking or other abnormal conditions of the chain wheels of the driving device of the curtain 15, when the curtain 15 of the roll-up door is driven by the driving device to fall down, the electromagnet A3 and the electromagnet B4 of the pair of stopping devices 1 are simultaneously energized, the electromagnet A3 and the electromagnet B4 attract each other and drive the pair of piston 6 and the stopping plate 7 to respectively leave the inner surfaces of the U-shaped bottom plates of the left and right curtain sliding sleeves 17, meanwhile, the rotor 10 of the trigger device 8 rotates at a normal speed along with the downward sliding of the door curtain 15, the plurality of permanent magnets 11 uniformly distributed on the rotor 10 sweep across the stator coil 14 of the semicircular stator 9, the induced current generated is relatively small, the movable electromagnet 20 and the fixed electromagnet 21 of the electromagnetic switch 19 only generate a repulsive force under the action of the small induced current, but are not separated from each other, the electrode A22 is kept in contact with the electrode B23, if the abnormal conditions of unhooking and breaking of the chain wheel of the driving device of the door curtain 15 occur, the door curtain 15 suddenly drops down and drives the rotor 10 of the trigger device 8 to suddenly accelerate, the generated induced current is suddenly increased, the increased induced current increases the repulsive force between the movable electromagnet 20 and the fixed electromagnet 21 of the electromagnetic switch 19, the movable electromagnet 20 and the fixed electromagnet 21 are separated from each other and drives the electrode A22 to be separated from the electrode B23, the power supply of the electromagnet A3 and the electromagnet B4 of the pair of stopping devices 1 is disconnected, the springs 5 of the pair of stopping devices 1 elastically extend, and the piston 6 and the stopping plate 7 are respectively driven to move towards the inner surfaces of the U-shaped bottom plates of the left and right door curtain sliding sleeves 17 and abut against the inner surfaces of the U-shaped bottom plates, so that the door curtain 15 is prevented from falling.
Claims (1)
1. The utility model provides a rolling slats door anti-falling device, characterized by: the device consists of a pair of stop devices (1) and a trigger device (8); the piston cylinders (2) of the pair of stop devices (1) are respectively fixed with the lower ends of the left side and the right side of the lowermost loose leaf (16) of the curtain (15) of the rolling door; the right stop device (1) of the lowermost hinge (16) consists of a piston cylinder (2), an electromagnet A (3), an electromagnet B (4), a spring (5), a piston (6) and a stop plate (7), the left end of the electromagnet A (3) is fixed with the bottom of the piston cylinder (2), the right end of the electromagnet A (3) is fixed with the left end of the spring (5), the right end of the spring (5) is fixed with the left end of the electromagnet B (4), the right end of the electromagnet B (4) is fixed with the left end of the piston (6), the right end of the piston (6) is fixed with the left end of the stop plate (7), the right end of the stop plate (7) faces towards the inner surface of the U-shaped bottom plate of the door curtain sliding sleeve (17), the right end of the stop plate (7) is provided with a friction surface which has an anti-slip function, and all components of the left stop device (1) of the lowermost hinge (16) are completely the same as all components of, the positions of the two are mirror images, an electromagnetic switch (19) is respectively arranged on a power supply loop (24) of a pair of stop devices (1), the electromagnetic switch (19) consists of a movable electromagnet (20) and a fixed electromagnet (21), the power supply loop (24) on the left is fixed with the center of the movable electromagnet (20), an electrode A (22) is fixed at the right end, the power supply loop (24) on the right is fixed with the center of the fixed electromagnet (21), an electrode B (23) is fixed at the left end, the power supply loops of the movable electromagnet (20) and the fixed electromagnet (21) are connected with an outgoing line of a stator coil (14) of a semicircular stator (9) of a trigger device (8), when the current of the movable electromagnet (20) and the fixed electromagnet (21) is less than a certain value, only a repulsive force is generated between the movable electromagnet (20) and the fixed electromagnet (21), but separation movement is not generated, and when the current of the movable electromagnet (20) and, are mutually exclusive and separated from each other; the trigger device (8) is composed of a semicircular stator (9), a rotor (10), a rotor shaft (12) and a stator shell (13), wherein the rotor (10) is provided with a plurality of permanent magnets (11) which are uniformly distributed, the front inner side and the rear inner side of the stator shell (13) of the semicircular stator (9) are fixed with stator coils (14), the left half part of the rotor (10) is exposed out of the stator shell (13), the rim of the rotor (10) is provided with a friction surface, the rim of the left end of the rotor (10) is propped against the inner surface of a U-shaped bottom plate of a left door curtain sliding sleeve (17), and the stator shell (13) is fixed with the left side of a hinge (; the working principle is as follows: when the door curtain (15) of the rolling door is driven by a driving device to rise and stop, the electromagnets A (3) and B (4) of the stopping devices (1) are powered off simultaneously, the spring (5) extends elastically and drives the piston (6) and the stopping plate (7) to move towards the inner surfaces of the U-shaped bottom plates of the left and right door curtain sliding sleeves (17) respectively and abut against the inner surfaces of the U-shaped bottom plates, at the moment, the stopping devices (1) can prevent the door curtain (15) from falling down regardless of the unhooking, breaking or other abnormal conditions of chain wheels of the driving device of the door curtain (15), and when the door curtain (15) of the rolling door is driven by the driving device to fall, the electromagnets A (3) and B (4) of the stopping devices (1) are powered on simultaneously, the electromagnets A (3) and B (4) attract each other and drive the pistons (6) and the stopping plate (7) to leave the inner surfaces of the U-shaped bottom plates of the left and right door curtain sliding sleeves (17) respectively, the door curtain (15) slides downwards at a normal speed, simultaneously the rotor (10) of the trigger device (8) rotates at the normal speed along with the sliding of the door curtain (15), a plurality of uniformly distributed permanent magnets (11) of the rotor (10) sweep a stator coil (14) of the semicircular stator (9), the generated induced current is also small, the movable electromagnet (20) and the fixed electromagnet (21) of the electromagnetic switch (19) only generate repulsive force under the action of the small induced current but are not separated from each other, the electrode A (22) and the electrode B (23) are kept in a contact state, if the chain wheel of a driving device of the door curtain (15) is unhooked and broken, the door curtain (15) suddenly drops and drives the rotor (10) of the trigger device (8) to suddenly accelerate, the generated induced current suddenly increases, and the increased repulsive force between the movable electromagnet (20) and the fixed electromagnet (21) of the electromagnetic switch (19), the movable electromagnet (20) and the fixed electromagnet (21) are separated from each other and drive the electrode A (22) and the electrode B (23) to be separated, power supplies of the electromagnet A (3) and the electromagnet B (4) of the pair of stop devices (1) are disconnected, the springs (5) of the pair of stop devices (1) extend elastically and drive the pistons (6) and the stop plates (7) to move towards the inner surfaces of the U-shaped bottom plates of the left door curtain sliding sleeves (17) and the right door curtain sliding sleeves (17) respectively and abut against the inner surfaces of the U-shaped bottom plates, and therefore the door curtains (15) are prevented from falling down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138509.5A CN109779509B (en) | 2019-02-25 | 2019-02-25 | Anti-falling device for rolling door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910138509.5A CN109779509B (en) | 2019-02-25 | 2019-02-25 | Anti-falling device for rolling door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109779509A CN109779509A (en) | 2019-05-21 |
| CN109779509B true CN109779509B (en) | 2020-03-31 |
Family
ID=66487126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910138509.5A Active CN109779509B (en) | 2019-02-25 | 2019-02-25 | Anti-falling device for rolling door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109779509B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115370280B (en) * | 2022-09-01 | 2023-11-24 | 安徽盛鹏节能科技有限公司 | Sun-shading glass self-locking device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228492A (en) * | 1991-10-03 | 1993-07-20 | Jou Ming Sen | Electric rolling steel door safety stopping device |
| CN201065725Y (en) * | 2007-07-03 | 2008-05-28 | 史建刚 | Bolt type upper folding door drop-proof safety and protection device |
| CN101737425B (en) * | 2010-01-21 | 2011-06-22 | 山东科技大学 | Monostable radial magnetic bearing with low power consumption and zero gravity action |
| CN203531709U (en) * | 2013-11-05 | 2014-04-09 | 王恒 | Electromagnetic roller shutter door |
| US10113360B2 (en) * | 2016-12-09 | 2018-10-30 | Hall Labs Llc | Roll-up wall tensioning |
| CN106429763B (en) * | 2016-12-14 | 2018-04-24 | 青岛蓝天创先科技服务有限公司 | A kind of safety lock for preventing lift car folder people |
| CN108110998A (en) * | 2018-01-22 | 2018-06-01 | 曹曦 | Vacuum electromagnetic motivation |
-
2019
- 2019-02-25 CN CN201910138509.5A patent/CN109779509B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109779509A (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109779509B (en) | Anti-falling device for rolling door | |
| CN109826552B (en) | Friction blocking type anti-falling device for roller shutter door | |
| KR20160003698A (en) | Magnetic levitation system for doors and windows | |
| EP2976776A1 (en) | Magnetic actuating device for a current switching device | |
| CN109750971B (en) | Anti-falling device for rotary rod type rolling door | |
| CN110173158B (en) | Alarm lock | |
| CN109736697B (en) | Clamp type anti-falling device for roller shutter door | |
| EP2138661B1 (en) | Speed controller for aperture closing elements and method for controlling speed of said elements | |
| JP2015053839A (en) | Brake motor | |
| CN109750970B (en) | Four-connecting-rod type anti-falling device for roller shutter door | |
| CN104217900B (en) | High speed long-life electromagnetic mechanism | |
| CN206570574U (en) | The electromechanical integration movement of electric clothes airing machine | |
| CN110029927B (en) | Automatic induction rolling shutter door | |
| CN101786265B (en) | Spring hanging mechanism of spring assembly machine | |
| CN114576293A (en) | Electromagnetic mechanical brake, method and application | |
| CN204983838U (en) | A motor formula anti -falling device for stereo garage | |
| CN215293333U (en) | Electric control actuator and electric control multi-mode clutch thereof | |
| CN103952991B (en) | The electric turnover formula kinfe rest | |
| KR102127472B1 (en) | Magnet automatic door apparatus | |
| CN112161007B (en) | Pawl anti-collision mechanism of pawl type overrunning clutch | |
| CN204827165U (en) | Formula friction flipping wheel structure is inhaled to double glazing glass internally -arranged shutter's magnetism | |
| CN220379301U (en) | Safety protection monitoring device | |
| CN105239815A (en) | Falling-prevention hook power device for mechanical three-dimensional parking equipment | |
| CN117361265A (en) | Elevator safety tongs with speed limiting protection | |
| CN209411670U (en) | A kind of blocking protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220422 Address after: 233000 No. 260 Fengkang Road, Huaishang District, Bengbu City, Anhui Province Patentee after: Anhui Wantaimen Technology Co.,Ltd. Address before: 448000 69 Jingmen Road, Dugao District, Jingmen high tech Zone, Jingmen, Hubei Patentee before: HUBEI SIZE NEW ENERGY TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right |