Mechanism for automatically opening roller shutter doors in emergency situations

Abstract

This application relates to a mechanism for automatically opening a roller shutter door (20) in an emergency, comprising: a roller (21), which is a hollow cylindrical roller, including at least one first positioning hole (211), the first positioning hole being disposed at one end of the roller; a rotating shaft (22), the diameter of which is smaller than that of the roller (21), which can rotate with the roller (21) and protrudes from both ends of the roller to form two rotating ends (222); at least one spring (24), one end (241) fixed on the rotating shaft (22), and the other end (242) fixed on the inner surface of the roller (21); when the rotating shaft (22) rotates relative to the roller (21) in the opposite direction of the roller shutter door body, the spring (24) rotates back to generate elastic energy storage; an elastic energy storage fixing unit (25), disposed on the rotating end (222) of the rotating shaft (22), and the roller (21) is provided with a first positioning hole (211) for fixing the elastic energy storage; and a starter is activated to release the elastic energy storage, thereby ensuring the efficiency of automatic opening of the roller shutter door.

Description

Technical Field

[0001] This application relates to roller shutter doors, and more particularly to a mechanism for automatically opening roller shutter doors in emergency situations. This mechanism has a simple structure, is easy to install, and has high operating efficiency. Background Technology

[0002] Today, roller shutters play a vital role in the robust development of modern architecture due to their convenience and aesthetics. They have been developed to be more suitable and convenient in all conditions and situations or events.

[0003] However, in some incidents, such as fires, emergency exits via roller shutter doors are not always easy, even though roller shutter doors are usually equipped with uninterruptible power supply (UPS) systems or manual opening mechanisms. In the event of a fire, UPS systems and motors are easily burned out, and manual opening mechanisms require some operation and sufficient force, not to mention being unable to operate due to overheating of the zippers.

[0004] Specifically, such as Figure 1 As shown, a conventional roller shutter door consists of a roller 1 with two ends 11, at least two rollers 2 fixed to the outer surface of the roller 1, a main body 3 composed of many slats / foil sheets that roll / unroll on the at least two rollers 2, a pair of support frames 4 mounted on the wall to support the roller 1, an engine 5 placed on the support frames 4, and a conveying mechanism 6 connecting the ends 11 of the roller 1 to the engine 5 to roll / unroll the main body 3. An uninterruptible power supply system 7 is used to supply power to the engine 5 in the event of a power outage; a manual opening / closing mechanism 8, consisting of a zipper 81, is used to roll / unroll (open / close) the body 3 in the event of engine / power failure.

[0005] according to Figure 1 In the structure shown, the roller shutter door is opened by an engine 5, which is powered by an uninterruptible power supply (UPS) / electric grid or by a manual switch mechanism 8 via a chain 81. Therefore, in the event of a fire, the engine 5 and the UPS 7 will shut down, and the chain 81 of the manual opening and closing mechanism 8 will heat up, preventing the machine body 3 from opening. Summary of the Invention

[0006] The purpose of this application is to provide a mechanism for automatically opening roller shutter doors in emergency situations such as fires. This mechanism is highly responsive, easy to operate, simple in structure, easy to install, and reasonably priced.

[0007] To achieve the above objectives, this application provides a mechanism 20 for automatically opening a roller shutter door in an emergency, comprising:

[0008] Roller 21 is a hollow cylindrical roller and includes at least one first positioning hole 211, which is disposed at one end of the roller.

[0009] A rotating shaft 22, the diameter of which is smaller than that of the roller 21, can rotate with the roller 21 and protrudes from both ends of the roller to form two rotating ends 222;

[0010] At least one partition plate 23 is fixed inside the cavity of the roller 21, dividing the cavity of the roller 21 into two sub-cavities;

[0011] At least one spring 24 is placed in two sub-cavities of the roller 21, wherein one end 241 of each spring 24 is fixed to the rotating shaft 22, and the other end 242 is fixed to the inner surface of the roller 21; the rotating shaft 22 rotates relative to the roller 21 in the opposite direction of the roller shutter door, so that the spring 24 generates elastic energy storage when it rotates.

[0012] An elastic energy storage fixing unit 25 is disposed on the rotating end 222 of the rotating shaft 22; the first positioning hole 211 provided on the roller 21 is used to fix the elastic energy storage of the spring 24; and

[0013] Actuator 26 is used to release the elastic stored energy of the spring to ensure the automatic opening efficiency of the roller shutter door. Attached Figure Description

[0014] Figure 1 It is a 3D diagram of an existing roller shutter door;

[0015] Figure 2 This is a cross-sectional view of the mechanism for automatically opening the roller shutter door in an emergency according to the embodiment of this application;

[0016] Figure 3 yes Figure 2 The right view. Detailed Implementation

[0017] The present invention will now be described in detail with reference to preferred embodiments and accompanying drawings. However, it should be understood that the present invention is not limited thereto. The accompanying drawings are simple and are only used to illustrate the principles and technical nature of the present invention. Therefore, similar modifications or improvements can be made to them without departing from the scope of the present invention as defined by the appended claims.

[0018] like Figure 2As shown, the mechanism 20 for automatically opening the roller shutter door in an emergency (hereinafter referred to as the automatic opening mechanism 20) consists of a hollow roller 21 with a predetermined diameter. Two positioning holes 211 are formed at one end of the roller 21. The diameter of the rotating shaft 22 is smaller than that of the roller 21, allowing it to rotate with the roller 21 and protruding from both ends of the roller to form two rotating ends 222. A partition plate 23 is fixed inside the cavity of the roller 21, dividing the cavity of the roller 21 into two sub-cavities. Two springs 24 are placed in the two sub-cavities of the roller 21, each spring 24 inserted into the outside of the rotating shaft 22, with one end 241 fixed to the rotating shaft 22 and the other end 242 fixed to the inner surface of the roller 21. An elastic energy storage fixing unit 25 is set on the rotating end 222 of the rotating shaft 22, and the roller 21 is provided with a first positioning hole 211. A starter 26 is used to activate the automatic opening mechanism 20 to open the roller shutter door.

[0019] According to another alternative of this application, the hollow compartment of the roller 21 can be divided into more or fewer than two sub-cavities by one or more partition plates 23; therefore, the number of springs 24 may be more or fewer than two, depending on the elastic accumulated energy of the springs 24 to form the roller 21 (as detailed below).

[0020] like Figure 2 and Figure 3 As shown, the elastic energy storage fixing unit 25 consists of a pair of positioning keys 251, which are fixed to the outer surface of the rotating end 222 of the rotating shaft 22. The positioning disk 252 is a disc with a hole 252a of sufficient diameter to pass through the rotating end 222. Two positioning key holes 252b are for passing through the two positioning keys 251. The second positioning hole 252c is concentric with the first positioning hole 211 of the roller 21. The two positioning pins 253 are non-threaded bolts that pass through the two second positioning holes 252c of the positioning disk 252 and the two first positioning holes 211 of the roller 21, fixing the elastic energy storage of the spring 24 when the spring rotates (details below).

[0021] Furthermore, according to another preferred embodiment of the invention, the push spring 254 can be replaced by an explosive (an explosion pushes the positioning pin 253 out of the first positioning hole of the roller 21; normally, the push spring 254 can be inserted and compressed), the positioning pin 253 is located outside the positioning disc 252, and when the pressure is reduced, the normally compressed push spring 254 pushes the positioning pin 253 out of the first positioning hole 211 of the roller 21.

[0022] To push the two locating pins 253 out of the two first locating holes 211 of the roller 21, according to a preferred alternative of the invention, two normally compressed push springs 254 are placed outside each locating pin 253 and located between one end of the roller 21 and the locating disc 252. A push spring retaining unit 255 is also provided to ensure proper compression of the push springs 254. According to a preferred alternative, the push spring retaining unit 255 may consist of a clutch, an adhesive, a retaining rope, and an explosive actuator.

[0023] According to a preferred alternative, the starter 26 may consist of a traction rope for releasing the clutch, decompressing the adhesive, disconnecting the retaining rope, or initiating the explosion.

[0024] The operating principle and efficiency of this application are described in detail below.

[0025] To ensure the automatic opening efficiency of the roller shutter door in emergencies such as fires, the automatic opening mechanism 20 of this application is pre-assembled and operates as follows:

[0026] First (during installation of the roller shutter door), by making the rotating shaft 22 relative to the roller 21 in the opposite direction of the roller shutter door body ( Figure 2 In the direction of the roller shutter door (i.e., the opening and closing direction of the roller shutter door), for example, through an engine, specifically, when the rotating shaft 22 rotates relative to the drum 21, one end 241 of the spring 24 is fixed on the rotating shaft 22, and the other end 242 is fixed on the inner surface of the drum 21, and the coiled spring 24 generates elastic energy storage.

[0027] Then, the elastic energy storage of spring 24 is fixed by the elastic energy storage fixing unit 25. Specifically, the positioning disk 252 is inserted into the rotating end 222, a pair of positioning keys 251, two positioning pins 253 pass through the two second positioning holes 252c of the positioning disk 252, and two push springs 254 and the two first positioning holes 211 of the roller 21. In this case, the roller 21 and the rotating shaft 22 are fixed to each other, forming a structure similar to... Figure 1 The roller 1 unit in the roller shutter door shown.

[0028] Next, the two push springs 254 are compressed by the clutch, and then the positions of the positioning plate 252 and the positioning pin 253 are adjusted to the appropriate positions so that when the two push springs 254 are depressurized, the positioning pin 253 will be pushed out of the first positioning hole 211 of the roller 21.

[0029] In the event of an emergency such as a malfunction or fire, the starter 26 will release the clutch, depressurizing the two push springs 254, and then push the positioning pin 253 out of the first positioning hole 211 of the roller 21. In this case, the elastic energy stored in the spring 24 causes the roller 21 to rotate on the rotating shaft 22 in the rolling direction of the roller shutter body, thereby automatically opening the roller shutter door.

[0030] Although the invention has been described in detail through preferred embodiments, those skilled in the art can make various modifications and improvements without departing from the spirit and scope of the invention. Therefore, the invention is not limited by the appended claims. For example, the invention does not limit the number of the first positioning hole 211, the second positioning hole 252c, and the positioning pin 253, as long as the number is sufficient to position / prevent the elastic energy accumulation of the spring. Furthermore, the number of positioning keys 251 may be sufficient to position the positioning disc 252.

[0031] Industrial applicability

[0032] Since one end of the spring 24 is fixed on the rotating shaft 22 and the other end 242 is fixed on the inner surface of the roller 21, when the rotating shaft 22 rotates, the spring 24 will curl up, and the energy stored in the elasticity will cause the roller 21 to rotate to roll / lift the roller shutter door in case of emergency such as fire.

Claims

1. A mechanism (20) for automatically opening a roller shutter door in an emergency, characterized in that, include: The roller (21) is a hollow cylindrical roller and includes at least one first positioning hole (211), which is disposed at one end of the roller; A rotating shaft (22) with a diameter smaller than that of the roller (21) can rotate with the roller (21) and protrude from both ends of the roller to form two rotating ends (222); At least one partition plate (23) is fixed inside the cavity of the roller (21) to divide the cavity of the roller (21) into two sub-cavities; At least one spring (24) is placed in two sub-cavities of the roller (21), wherein one end (241) of each spring (24) is fixed on the rotating shaft (22), and the other end (242) is fixed on the inner surface of the roller (21); the rotating shaft (22) rotates relative to the roller (21) in the opposite direction of the roller shutter door, so that the spring (24) generates elastic energy storage when it rotates; An elastic energy storage fixing unit (25) is set on the rotating end (222) of the rotating shaft (22), and the first positioning hole (211) provided on the roller (21) is used to fix the elastic energy storage of the spring (24); and a starter (26) is used to release the elastic energy storage of the spring to ensure the automatic opening efficiency of the roller shutter door. The elastic energy storage fixing unit (25) comprises: at least one positioning key (251) fixed on the outer surface of the rotating end (222) of the rotating shaft (22); a positioning disk (252) being a disc with a hole (252a) having a diameter sufficient for the rotating end (222) to pass through, at least one positioning key hole (252b) through which the at least one positioning key (251) passes, and at least one second positioning hole (252c) concentric with at least one first positioning hole (211) of the roller (21); and at least one positioning pin (253) being a non-threaded bolt that passes through at least one second positioning hole (252c) of the positioning disk (252) and at least one first positioning hole (211) of the roller (21).

2. The mechanism according to claim 1, characterized in that, The elastic energy storage fixing unit (25) includes at least one pusher unit (254), which is disposed between one end of the roller (21) and the positioning plate (252). When the starter (26) releases the elastic energy of the spring, the pusher unit (254) pushes the positioning pin (253) into at least one first positioning hole (211) of the roller (21) to ensure the efficiency of the automatic opening of the roller shutter door.

3. The mechanism according to claim 2, characterized in that, The sales unit (254) consists of a conventional compression spring and explosives.

4. The mechanism according to claim 1 or 2, characterized in that, The resilient energy storage fixing unit (25) includes a holding unit (255) to hold the push unit (254), wherein the holding unit (255) consists of a clutch, an adhesive, a holding line and an explosion actuator.

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