CN109826552B - Friction blocking type anti-falling device for roller shutter door - Google Patents
Friction blocking type anti-falling device for roller shutter door Download PDFInfo
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- CN109826552B CN109826552B CN201910153671.4A CN201910153671A CN109826552B CN 109826552 B CN109826552 B CN 109826552B CN 201910153671 A CN201910153671 A CN 201910153671A CN 109826552 B CN109826552 B CN 109826552B
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Abstract
The invention discloses a friction blocking type 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 simultaneously, the spring A and the spring B rebound and extend and drive the left end and the right end of the rhombic connecting rod to extend, and the pair of stopping plates respectively support against the inner surface of the side wall of the door curtain sliding sleeve to prevent the door curtain from suddenly dropping; 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 support against the inner surface of the side wall of the door curtain sliding sleeve 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 shells (2) of the pair of stop devices (1) are respectively fixed with the left side and the right side of a hinge (16) at the lowest part of a door curtain (15) of the rolling door; the right stop device (1) of the lowermost hinge (16) is composed of a shell (2), an electromagnet A (3), an electromagnet B (4), a spring A (5), a spring B (6), stop plates (7) and a diamond-shaped connecting rod (25), the upper end of the spring A (5) is fixed with the upper inner wall of the shell (2), the lower end of the spring A (5) is fixed with the upper end of the electromagnet A (3), the lower end of the electromagnet A (3) is fixed with the upper hinged point of the diamond-shaped connecting rod (25), the lower hinged point of the diamond-shaped connecting rod (25) is fixed with the upper end of the electromagnet B (4), the lower end of the electromagnet B (4) is fixed with the upper end of the spring B (6), the lower end of the spring B (6) is fixed with the lower inner wall of the shell (2), the diamond-shaped connecting rod (25) is a diamond which is composed of four connecting rods and is symmetrical, the connection of the rods is hinged, the left hinged point and the right hinged point of the diamond The outer side surfaces of a left stop plate (7) and a right stop plate (7) face the inner surface of the side wall (18) of a door curtain sliding sleeve (17) respectively, the outer side surfaces of the stop plates (7) are provided with friction surfaces which have an anti-skidding function, each component of the left stop device (1) of a lowermost loose leaf (16) is identical to each component of the right stop device (1), a power circuit (24) of an electromagnet of a pair of stop devices (1) is provided with an electromagnetic switch (19) respectively, the electromagnetic switch (19) consists of a movable electromagnet (20) and a fixed electromagnet (21), the power circuit (24) on the left side is fixed with the center of a movable electromagnet (20), the right end of the power circuit is fixed with the center of the fixed electromagnet (21), the left end of the power circuit is fixed with an electrode B (23), the power circuits of the movable electromagnet (20) and the fixed electromagnet (21) are fixed with the fixed stator (9) of a trigger device (8) The outgoing lines of the sub-coils (14) are connected, when the currents of the movable electromagnet (20) and the fixed electromagnet (21) are smaller than a certain value, only a repulsive force is generated between the movable electromagnet and the fixed electromagnet, but separation movement is not generated, and when the currents of the movable electromagnet (20) and the fixed electromagnet (21) are larger than a certain value, the movable electromagnet and the fixed electromagnet repel each other and are 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 the bottom plate of the left door curtain sliding sleeve (17), and the stator shell (13) is fixed with a hinge (16); the working principle is as follows: when a door curtain (15) of the rolling door is driven by a driving device to rise and stop, an electromagnet A (3) and an electromagnet B (4) of a pair of stopping devices (1) are powered off simultaneously, the electromagnet A (3) and the electromagnet B (4) lose repulsive force, a spring A (5) and a spring B (6) rebound and extend, the upper end and the lower end of a rhombic connecting rod (25) are driven to shorten, the left end and the right end extend, a pair of stopping plates (7) respectively abut against the inner surface of a side wall (18) of a door curtain sliding sleeve (17), at the moment, no matter whether a chain wheel of the driving device of the door curtain (15) is unhooked, broken or other abnormal conditions, the pair of stopping devices (1) can prevent the door curtain (15) from falling down, when the door curtain (15) of the rolling door is driven by the driving device to fall, the electromagnet A (3) and the electromagnet B (4) of the pair of stopping devices (1) are powered on simultaneously, and the electromagnet A (3) and the electromagnet B, the upper end and the lower end of a diamond connecting rod (25) are driven to extend, the left end and the right end are shortened, a pair of stop plates (7) are respectively separated from the inner surface of the side wall (18) of a door curtain sliding sleeve (17), the door curtain (15) slides downwards at a normal speed, simultaneously a rotor (10) of a 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 a semicircular stator (9), the generated induced current is small, a movable electromagnet (20) and a fixed electromagnet (21) of an electromagnetic switch (19) only generate repulsive force under the action of the small induced current, but are not separated from each other, an electrode A (22) and an electrode B (23) are kept in a contact state, and if abnormal conditions such as unhooking, breaking and the like occur to a chain wheel of a driving device of the door curtain (15), the door curtain (, and the rotor (10) of the trigger device (8) is driven to accelerate suddenly, the generated induction current is increased suddenly, the increased induction 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 drive the electrode A (22) and the electrode B (23) to be separated, the power supply of the electromagnet A (3) and the electromagnet B (4) of the pair of stop devices (1) is disconnected, the electromagnet A (3) and the electromagnet B (4) lose the repulsive force, the spring A (5) and the spring B (6) rebound and extend, the upper end and the lower end of the rhombic connecting rod (25) are driven to be shortened, the left end and the right end of the rhombic connecting rod extend, and the pair of stop plates (7) respectively push against the inner surface of the side wall (18) of the door curtain sliding sleeve (17), so that the door curtain (15).
Drawings
1-stop device, 2-shell, 3-electromagnet A, 4-electromagnet B, 5-spring A, 6-spring B, 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, 18-side wall, 19-electromagnetic switch, 20-movable electromagnet, 21-fixed electromagnet, 22-electrode A, 23-electrode B, 24-power supply loop and 25-diamond connecting rod.
Fig. 1 is a schematic elevation view of the present invention.
Fig. 2 is a horizontal cross-sectional view of the stop device.
Fig. 3 is a cross-sectional view a-a of the stop device.
Fig. 4 is an elevational view of the trigger device.
Fig. 5 is an exploded perspective view of the trigger device.
Fig. 6 is a cross-sectional view B-B of the trigger device.
Fig. 7 is a cross-sectional view of the electromagnetic switch.
Detailed Description
Referring to fig. 1 to 7, 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 electromagnet A3 and the electromagnet B4 lose repulsive force, the spring a5 and the spring B6 rebound and extend, and drive the upper end and the lower end of the diamond-shaped connecting rod 25 to shorten, the left end and the right end to extend, the pair of stopping plates 7 respectively abut against the inner surface of the side wall 18 of the curtain sliding sleeve 17, 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 wheel 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, the electromagnet A3 and the electromagnet B4 of the pair of stopping devices 1 are simultaneously energized, the electromagnet A3 and the electromagnet B4 repel each other, and drive the upper end and the lower end of the diamond-shaped connecting rod 25 to extend, the, 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, the plurality of permanent magnets 11 uniformly distributed on the rotor 10 sweep 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 repulsion force under the action of the small induced current, but are not separated from each other, the electrode A22 and the electrode B23 are kept in a contact state, if abnormal conditions such as unhooking and breaking occur to the chain wheel of the driving device of the door curtain 15, 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 repulsion 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 stop devices 1 is cut off, the electromagnet A3 and the electromagnet B4 lose the repulsive force, the spring A5 and the spring B6 rebound and extend, the upper end and the lower end of the diamond-shaped connecting rod 25 are driven to shorten, the left end and the right end of the diamond-shaped connecting rod extend, the pair of stop plates 7 respectively support against the inner surface of the side wall 18 of the door curtain sliding sleeve 17, and the door curtain 15 is prevented from falling.
Claims (1)
1. The utility model provides a friction blocks formula rolling slats door anti-falling device, characterized by: the device consists of a pair of stop devices (1) and a trigger device (8); the shells (2) of the pair of stop devices (1) are respectively fixed with the left side and the right side of a hinge (16) at the lowest part of a door curtain (15) of the rolling door; the right stop device (1) of the lowermost hinge (16) consists of a shell (2), an electromagnet A (3), an electromagnet B (4), a spring A (5), a spring B (6), stop plates (7) and diamond-shaped connecting rods (25), wherein the upper end of the spring A (5) is fixed with the upper inner wall of the shell (2), the lower end of the spring A (5) is fixed with the upper end of the electromagnet A (3), the lower end of the electromagnet A (3) is fixed with the upper hinged point of the diamond-shaped connecting rods (25), the lower hinged point of the diamond-shaped connecting rods (25) is fixed with the upper end of the electromagnet B (4), the lower end of the electromagnet B (4) is fixed with the upper end of the spring B (6), the lower end of the spring B (6) is fixed with the lower inner wall of the shell (2), the diamond-shaped connecting rods (25) are diamonds which are symmetrical and composed of four connecting rods, the rods are hinged, the front hinged point and the rear hinged point of the diamond-shaped connecting rods (25 The outer side surfaces of the front stop plate (7) and the rear stop plate (7) face the inner surface of the side wall (18) of the door curtain sliding sleeve (17) respectively, the outer side surfaces of the stop plates (7) are provided with friction surfaces which have an anti-skidding function, each component of the left stop device (1) of the lowermost loose leaf (16) is identical to each component of the right stop device (1), an electromagnetic switch (19) is arranged on each power circuit (24) of the electromagnet of the pair of stop devices (1), each electromagnetic switch (19) consists of a movable electromagnet (20) and a fixed electromagnet (21), the power circuit (24) on the left side is fixed with the center of the movable electromagnet (20), an electrode A (22) is fixed at the right end of each power circuit, the power circuit (24) on the right side is fixed with the center of the fixed electromagnet (21), an electrode B (23) is fixed at the left end of each power circuit, and the power circuits of the movable electromagnet (20) and the fixed electromagnet (21) are fixed with the fixed with The outgoing lines of the sub-coils (14) are connected, when the currents of the movable electromagnet (20) and the fixed electromagnet (21) are smaller than a certain value, only a repulsive force is generated between the movable electromagnet and the fixed electromagnet, but separation movement is not generated, and when the currents of the movable electromagnet (20) and the fixed electromagnet (21) are larger than a certain value, the movable electromagnet and the fixed electromagnet repel each other and are 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 the bottom plate of the left door curtain sliding sleeve (17), and the stator shell (13) is fixed with a hinge (16); the working principle is as follows: when a door curtain (15) of the rolling door is driven by a driving device to rise and stop, an electromagnet A (3) and an electromagnet B (4) of a pair of stopping devices (1) are powered off simultaneously, the electromagnet A (3) and the electromagnet B (4) lose repulsive force, a spring A (5) and a spring B (6) rebound and extend, the upper end and the lower end of a diamond-shaped connecting rod (25) are driven to shorten, the front end and the rear end extend, a pair of stopping plates (7) respectively support against the inner surface of a side wall (18) of a door curtain sliding sleeve (17), at the moment, no matter a chain wheel of the driving device of the door curtain (15) is unhooked, broken or other abnormal conditions, the pair of stopping devices (1) can prevent the door curtain (15) from falling down, 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 pair of stopping devices (1) are powered on simultaneously, and the electromagnets A (3) and B (4, and drives the upper and lower ends of the rhombic connecting rod (25) to extend, the front and rear ends are shortened, a pair of stop plates (7) respectively leave the inner surface of the side wall (18) of the door curtain sliding sleeve (17), 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 the stator coil (14) of the semicircular stator (9), the generated induced current is 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) keep in a contact state, if abnormal conditions such as unhooking, breaking and the like occur to the chain wheel of the driving device of the door curtain (15), the door curtain (15) suddenly drops, and the rotor (10) of the trigger device (8) is driven to accelerate suddenly, the generated induced current is increased suddenly, 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 drive the electrode A (22) and the electrode B (23) to be separated, the power supply of the electromagnet A (3) and the electromagnet B (4) of the pair of stop devices (1) is disconnected, the electromagnet A (3) and the electromagnet B (4) lose the repulsive force, the spring A (5) and the spring B (6) rebound and extend, the upper end and the lower end of the rhombic connecting rod (25) are driven to be shortened, the front end and the rear end of the rhombic connecting rod extend, and the pair of stop plates (7) respectively push against the inner surface of the side wall (18) of the door curtain sliding sleeve (17), so that the door curtain (15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153671.4A CN109826552B (en) | 2019-03-01 | 2019-03-01 | Friction blocking type anti-falling device for roller shutter door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910153671.4A CN109826552B (en) | 2019-03-01 | 2019-03-01 | Friction blocking type anti-falling device for roller shutter door |
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| Publication Number | Publication Date |
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| CN109826552A CN109826552A (en) | 2019-05-31 |
| CN109826552B true CN109826552B (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910153671.4A Active CN109826552B (en) | 2019-03-01 | 2019-03-01 | Friction blocking type anti-falling device for roller shutter door |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110723616B (en) * | 2019-09-20 | 2021-07-06 | 日立楼宇技术（广州）有限公司 | Method and device for detecting foreign matter clamped by elevator door and computer equipment |
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| CN101737425A (en) * | 2010-01-21 | 2010-06-16 | 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 |
| CN106429763A (en) * | 2016-12-14 | 2017-02-22 | 青岛蓝天创先科技服务有限公司 | Safety lock for preventing elevator car from clamping people |
| JP6140502B2 (en) * | 2013-03-28 | 2017-05-31 | 文化シヤッター株式会社 | Switchgear |
| CN107117515A (en) * | 2017-04-01 | 2017-09-01 | 嘉兴学院 | A kind of elevator stall proof auxiliary brake |
| CN108429399A (en) * | 2017-02-15 | 2018-08-21 | 裘根富 | A kind of relay generator |
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2019
- 2019-03-01 CN CN201910153671.4A patent/CN109826552B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737425A (en) * | 2010-01-21 | 2010-06-16 | 山东科技大学 | Monostable radial magnetic bearing with low power consumption and zero gravity action |
| JP6140502B2 (en) * | 2013-03-28 | 2017-05-31 | 文化シヤッター株式会社 | Switchgear |
| CN203531709U (en) * | 2013-11-05 | 2014-04-09 | 王恒 | Electromagnetic roller shutter door |
| CN106429763A (en) * | 2016-12-14 | 2017-02-22 | 青岛蓝天创先科技服务有限公司 | Safety lock for preventing elevator car from clamping people |
| CN108429399A (en) * | 2017-02-15 | 2018-08-21 | 裘根富 | A kind of relay generator |
| CN107117515A (en) * | 2017-04-01 | 2017-09-01 | 嘉兴学院 | A kind of elevator stall proof auxiliary brake |
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| CN109826552A (en) | 2019-05-31 |
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Effective date of registration: 20220419 Address after: Room 2, south side of xujiacun Road, penglang, Kunshan Development Zone, Suzhou, Jiangsu 215300 Patentee after: KUNSHAN CITY NEW HENGBANG DOORS 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. |