CN-224228484-U - Shock-resistant door opening mechanism

CN224228484UCN 224228484 UCN224228484 UCN 224228484UCN-224228484-U

Abstract

The utility model relates to the technical field of protection engineering and discloses an impact-resistant door opening mechanism which comprises an electric control opening and closing mechanism, a folding arm and a pull wire type sensor, wherein the electric control opening and closing mechanism is arranged on a door frame wall at the inner side of a door and comprises an electric driver, a first speed reducer and a second speed reducer which are sequentially connected, the folding arm comprises a first swing rod and a second swing rod, the first end of the first swing rod is connected with an output shaft of the second speed reducer, the second end of the first swing rod is hinged with the first end of the second swing rod, the second end of the second swing rod is connected with a door leaf so as to open or close the door leaf under the driving of the electric control opening and closing mechanism, the pull wire type sensor is arranged on the door frame wall at the inner side of the door and is connected with the door leaf through a pull wire type sensor, and the pull wire type sensor is connected with the electric control opening and closing mechanism through signals so as to feed back the real-time opening and closing angle of the door leaf to the electric control opening and closing mechanism. By arranging the electric control opening and closing mechanism on the door frame wall at the inner side of the door, the degree of strong vibration of the electric control opening and closing mechanism along with the door leaf is reduced, and impact damage is avoided.

Inventors

HAO LUBO
WANG SHUAIJIE
WANG HUIJIE
ZHANG BEI
SONG HAIQING
QI ZEHAO

Assignees

中国人民解放军军事科学院国防工程研究院

Dates

Publication Date: 20260512
Application Date: 20250410

Claims (10)

1. An impact resistant door opening mechanism, comprising: The electric control opening and closing mechanism comprises an electric driver, a first speed reducer and a second speed reducer which are sequentially connected, wherein the axes of the electric driver and the first speed reducer extend along a first direction, the input shaft of the second speed reducer extends along the first direction, the output end of the second speed reducer extends along a second direction, the axis of a rotating shaft of a door leaf extends along a third direction, and the first direction, the second direction and the third direction are mutually perpendicular; The folding arm comprises a first swing rod and a second swing rod, wherein the first end of the first swing rod is connected with an output shaft of the second speed reducer, the second end of the first swing rod is hinged with the first end of the second swing rod, and the second end of the second swing rod is connected with a door leaf so as to open or close the door leaf under the drive of an electric control opening and closing mechanism; The stay wire type sensor is arranged on a door frame wall at the inner side of the door, a stay wire of the stay wire type sensor is connected with the door leaf, and the stay wire type sensor is in signal connection with the electric control opening and closing mechanism so as to feed back the real-time opening and closing angle of the door leaf to the electric control opening and closing mechanism.
2. The impact resistant door opening mechanism as set forth in claim 1, wherein said electrically controlled opening and closing mechanism is located in a plane higher than a plane of said folding arm to reduce occupation of the door opening space.
3. The impact resistant door opening mechanism of claim 2, wherein the electric drive, the first decelerator and the second decelerator are semi-embedded in a door frame wall inside the door to reduce occupation of the door opening space.
4. The shock resistant door opening mechanism as set forth in claim 1 further comprising a shock resistant clutch having an axis extending in a first direction, an output shaft of said first speed reducer being connected to a drive end of said shock resistant clutch, a driven end of said shock resistant clutch being connected to an input shaft of said second speed reducer.
5. The shock resistant door opening mechanism according to claim 4, wherein the shock resistant clutch comprises an electromagnetic clutch, a fixed shaft and a sleeve, the sleeve is connected with a passive end of the electromagnetic clutch and is coaxially arranged with the electromagnetic clutch, the fixed shaft is arranged in the electromagnetic clutch, an output shaft of the first speed reducer is connected with the fixed shaft, and the sleeve is connected with an input shaft of the second speed reducer.
6. The door opening shock resistant mechanism as set forth in claim 5, further comprising a first buffer member and a second buffer member, wherein the first buffer member is disposed between the stationary shaft and the output shaft of the first speed reducer, and the second buffer member is disposed between the sleeve and the input shaft of the second speed reducer.
7. The impact door opening mechanism of claim 5, wherein the first end of the fixed shaft is positioned in the inner cavity of the sleeve and the fixed shaft is connected with the inner wall of the sleeve through a bearing.
8. The shock resistant door opening mechanism according to claim 7, further comprising a shaft retainer ring, a hole retainer ring and a non-magnetic washer, wherein the shaft retainer ring is arranged between the end of the first end of the fixed shaft and the bearing, the hole retainer ring is arranged between the bearing and the inner wall of the sleeve, and the non-magnetic washer is arranged between the fixed shaft and the driven end of the electromagnetic clutch.
9. The shock resistant door opening mechanism according to claim 8, wherein the second end of the stationary shaft extends outwardly of the drive end of the electromagnetic clutch, and the second end of the stationary shaft has a stationary slot for connection to an output shaft of the first reduction gear.
10. The impact door opening mechanism of claim 9, wherein the inner wall of the fixed groove is provided with a first flat key groove for connecting the output shaft of the first speed reducer and the second end of the fixed shaft into a whole, and the end of the sleeve, which is far away from the fixed shaft, is provided with a second flat key groove for connecting the input shaft of the second speed reducer.

Description

Shock-resistant door opening mechanism Technical Field The utility model relates to the technical field of protection engineering, in particular to an impact-resistant door opening mechanism. Background The door leaves of the protective device vibrate strongly when subjected to shock waves. In particular to an electric opening and closing protective door, a driving mechanism and an electric control system of the protective door are arranged on a door leaf, and the electric control driving system is extremely easy to damage along with strong vibration of the door leaf. Accordingly, there is a need for an impact resistant door opening mechanism. Disclosure of utility model The utility model aims to provide an impact-resistant door opening mechanism, which solves the problems that in the prior art, when a door leaf vibrates strongly, an electric control driving mechanism is easy to damage and the like. In order to achieve the above purpose, the present utility model provides the following technical solutions: An impact resistant door opening mechanism comprising: The electric control opening and closing mechanism comprises an electric driver, a first speed reducer and a second speed reducer which are sequentially connected, wherein the axes of the electric driver and the first speed reducer extend along a first direction, the input shaft of the second speed reducer extends along the first direction, the output end of the second speed reducer extends along a second direction, the axis of a rotating shaft of a door leaf extends along a third direction, and the first direction, the second direction and the third direction are mutually perpendicular; The folding arm comprises a first swing rod and a second swing rod, wherein the first end of the first swing rod is connected with an output shaft of the second speed reducer, the second end of the first swing rod is hinged with the first end of the second swing rod, and the second end of the second swing rod is connected with a door leaf so as to open or close the door leaf under the drive of an electric control opening and closing mechanism; The stay wire type sensor is arranged on a door frame wall at the inner side of the door, a stay wire of the stay wire type sensor is connected with the door leaf, and the stay wire type sensor is in signal connection with the electric control opening and closing mechanism so as to feed back the real-time opening and closing angle of the door leaf to the electric control opening and closing mechanism. The stay wire type sensor is arranged at a position far away from the door leaf, so that the degree of strong vibration of the electric control opening and closing mechanism and the stay wire type sensor along with the door leaf under strong impact load is reduced, and impact damage is avoided. Further, the plane of the electric control opening and closing mechanism is higher than the plane of the folding arm, so that occupation of the door hole space is reduced. Further, the electric driver, the first speed reducer and the second speed reducer are half-embedded in the door frame wall at the inner side of the door, so that occupation of the door hole space is reduced. Further, the anti-shock clutch also comprises an anti-shock clutch, wherein the axis of the anti-shock clutch extends along the first direction, the output shaft of the first speed reducer is connected with the driving end of the anti-shock clutch, and the driven end of the anti-shock clutch is connected with the input shaft of the second speed reducer. By arranging the shock-resistant clutch, the shock impact applied to the electromagnetic clutch can be reduced, and the shock impact transmitted to the first speed reducer and the electric driver can be reduced. The anti-impact clutch comprises an electromagnetic clutch, a fixed shaft and a sleeve, wherein the sleeve is connected with the driven end of the electromagnetic clutch and is coaxially arranged with the electromagnetic clutch, the fixed shaft is arranged in the electromagnetic clutch, the output shaft of the first speed reducer is connected with the fixed shaft, and the sleeve is connected with the input shaft of the second speed reducer. Through setting up electromagnetic clutch, this door mechanism that opens can flashlight dual-purpose, when automatically controlled opening and close mechanism damages, can open the door through manual. The device further comprises a first buffer piece and a second buffer piece, wherein the first buffer piece is arranged between the fixed shaft and the output shaft of the first speed reducer, and the second buffer piece is arranged between the sleeve and the input shaft of the second speed reducer. The electromagnetic clutch has low shock resistance, and in order to improve the shock resistance, the buffer parts are additionally arranged at the two ends of the electromagnetic clutch assembly, so that the shock impact on the electromagnetic clutch is reduced. Further, the fi