AIR-TIGHT DOOR SYSTEM AND AIR-TIGHT DOOR CONTROL METHOD

• US 20170218679A1
• Filed: 07/27/2015
• Published: 08/03/2017
• Est. Priority Date: 08/01/2014
• Status: Active Grant

• Current Assignee: Broadwell (Shenzhen) Technology Co., Ltd.
• Original Assignee: Broadwell (Shenzhen) Technology Co., Ltd.
• Inventors: XIAO, Long, WANG, Qin, YANG, Feng, LIU, Fengtao
• Granted Patent: US 10,407,969 B2
• Time in Patent Office: Days
• CPC Class Codes: E05F 15/73 responsive to movement or presence of persons or objects
• CPC Class Codes: E05F 2015/763 using acoustical sensors
• CPC Class Codes: E05F 2015/765 using optical sensors
• CPC Class Codes: E05Y 2900/116 for sluices
• CPC Class Codes: E05Y 2900/132 Doors
• CPC Class Codes: E06B 5/10 for protection against air-raid or other war-like action; for other protective purposes

Abstract

An air-tight door system and a control method therefor. The air-tight door comprises a first door (M1), a second door (M2), a first door detection module (S1, S2, P1), a second door detection module (S3, S4, P2) and a controller (K). The air-tight door control method comprises: the first and second detection modules (S1, S2, P1, S3, S4, P2) detect whether the first door (M1) and the second door (M2) are completely closed; and the controller (K) controls opening and closing of the first door (M1) and the second door (M2) according to whether the first and second doors (M1, M2) are completely closed. The air-tight door system and the control method therefor ensure that at least one door is in the closed state at any time, thereby further improving air-tightness and device safety.

Claims

1. An air-tight door system, comprising:

a first door, a second door, a first door detection module, a second door detection module, and a controller, wherein the first door and the second door form an air-tight passage therebetween;

wherein the controller is configured to;

open the first door and configure the second door to prohibit opening when the first door detection module detects that there is a transportation vehicle waiting to enter the first door;

close the first door and configure the first door to prohibit opening when the first door detection module detects that the transportation vehicle passes through the first door completely;

unlock the second door and open the second door when the second door detection module detects that the transportation vehicle will depart the second door, and the first door detection module detects that the first door is completely closed;

close the second door when the second door detection module detects that the transportation vehicle passes through the second door completely; and

unlock the first door when the second door detection module detects that the second door is completely closed.

2. The air-tight door system according to claim 1, wherein the first door detection module comprises a first door inside detection mechanism, a first door outside detection mechanism, and a first door closing detection mechanism, the first door detection mechanism is configured to detect whether there is a transportation located at the inner side of the first door, the second door detection module is configured to detect whether there is a transportation vehicle outside the first door, the first door closing detection mechanism is configured to detect whether the first door is completely closed.

3. The air-tight door system according to claim 1, wherein the second door detection module comprises a second door inside detection mechanism, a second door outside detection mechanism, and a second door closing detection mechanism, the second door detection mechanism is configured to detect whether there is a transportation located at the inner side of the second door, the second door outside detection mechanism is configured to detect whether there is a transportation vehicle outside the second door, the second door closing detection mechanism is configured to detect whether the second door is completely closed.

4. The air-tight door system according to claim 1, wherein the controller is further configured to close the opened first door and unlock the second door which is configured to prohibit opening, when the first door detection module detects a signal indicating that there is a transportation vehicle arriving outside the first door, and then the signal disappears, and the first door detection module does not detect a signal indicating that there is a transportation vehicle arriving inside the first door.

5. The air-tight door system according to claim 1, wherein the first door detection module and/or the second door detection module is at least one of an infrared ranging sensor, an ultrasonic ranging, a radar ranging sensor, or a laser sensor.

6. The air-tight door system according to claim 1, further comprising a first door prompt module, wherein the first door prompt module possesses at least one of the following functions:

A1, when the transportation vehicle waiting to enter the first door is detected, the first door prompt module is configured to send a prompt waiting signal;

B1, when the first door being completely opened is detected, the first door prompt module is configured to send a prompt passing signal;

C1. when the transportation vehicle passing through the first door completely is detected, the first door prompt module is configured to send an entering forbidding signal; and

D1. when the transportation vehicle passing through the second door completely and the second door being completely closed are detected, the first door prompt module is configured to send a standby signal.

7. The air-tight door system according to claim 1, further comprising a second door prompt module, wherein the second door prompt module possesses at least one of the following functions;

A2. when the a transportation vehicle waiting to enter the first door is detected, the second door prompt module is configured to send an outside avoidance signal until the second door detection module detects that the second door is opened and then completely closed;

B2. when the transportation vehicle passing through the first door completely is detected, the second door prompt module is configured to send a prompt passing signal or a prompt speed reducing signal;

C2. when the transportation vehicle waiting to depart the second door is detected, the second door prompt module is configured to send a prompt standby signal;

D2. when the second door being completely opened is detected, the second door prompt module is configured to send a prompt passing signal; and

E2. when the transportation vehicle passing through the second door completely and the second door being completely closed are detected, the second door prompt module is configured to send a standby signal.

8. The air-tight door system according to claim 7, wherein the second door prompt module comprises a second door inside prompt mechanism located inside the second door and a second door outside prompt mechanism located outside the second door, the second door inside prompt mechanism is configured to achieve the functions B2, C2, and D2, the second door outside prompt mechanism is configured to achieve the functions A2 and E2.

9. The air-tight door system according to claim 8, wherein the function A2 is that:

when the transportation vehicle waiting to enter the first door is detected, the second door prompt module is configured to send an entering forbidding signal, the second door detection module detects whether there is another transportation vehicle waiting to enter the second door, if yes, the second door prompt module is further configured to send an outside avoidance signal until the second door detection module detects that the second door is opened and is then completely closed.

10. An air-tight door control method, comprising the following steps:

detecting whether there is a transportation vehicle waiting to enter the first door, if yes, opening the first door and configuring the second door to prohibit opening;

the first door and the second door being an entrance and an exit of a same air-tight passage;

detecting whether the transportation vehicle passes through the first door completely, if yes, closing the first door and configuring the first door to prohibit opening;

detecting whether the transportation vehicle waits to depart the second door, and detecting whether the first door is completely closed at the same time, if all are yes, unlocking and opening the second door;

detecting whether the transportation vehicle passes through the second door completely, if yes, closing the second door; and

detecting whether the second door is completely closed, if yes, unlocking the first door.

11. The method according to claim 10, wherein, when a signal indicating that there is a transportation vehicle waiting to enter the first door is detected and then the signal disappears, and the transportation vehicle passing through the first door completely is not be detected, the method further comprise:

closing the opened first door and unlocking the second door which is configured to prohibit opening.