Multi-motor fusing control method

Abstract

The invention provides a multi-motor fusing control method, which relates to the technical field of fireproof roller shutters and comprises the following steps of: electrically connecting fuses at a plurality of motors on a fireproof roller shutter with a bottom beam; before the fire resisting shutter is fused, the electromagnetic part in the fuse adsorbs the fusing plate; and when any fuse receives a fusing signal, the electromagnetic parts in all fuses electrically connected with the fuse stop adsorbing the fusing plate, and the fusing plate pops up to close the fire resisting shutter. According to the invention, the fuses at the plurality of motors on the same floor beam fireproof roller shutter are electrically connected, when any fuse is fused, all other fuses are fused at the same time, and the fusing mode is that the magnetism disappears and the fusing plate is released to pop out, the fusing triggering thrust is stable, and the reliability of the simultaneous fusing triggering of the plurality of motors is high; and safe fusing of the large-length fireproof roller shutter is effectively achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of fireproof roller shutters, and in particular to a multi-motor fusing control method. Background Art

[0002] Fireproof rolling shutter is a fireproof and heat-insulating facility suitable for larger openings in buildings. The product is designed with a built-in roller and has a reasonable and compact structure. It is divided into ordinary and composite types according to the curtain plate type. The curtain surface of the fireproof rolling shutter is raised and lowered through a transmission device and a control system to play a role in fire prevention and fire isolation. The product has a smooth and beautiful appearance, novel shape, and strong steel. Fireproof rolling shutter doors are widely used in fire-proof partition areas of industrial and civil buildings. They can effectively prevent the spread of fire and protect life and property. They are indispensable fire protection facilities in modern buildings.

[0003] When a fire occurs in a building, the temperature often rises, and the fire shutter needs to be automatically closed when the temperature rises. Therefore, a temperature-controlled release device is provided. The temperature-controlled release device generally uses a wire rope to pull the brake lever of the fire shutter rolling door machine, so that the brake pad of the fire shutter rolling door machine is separated from the transmission mechanism (and melted). The fire shutter slides down and closes by its own weight, sealing the building flue, preventing the fire from spreading between the flues on each floor, reducing the impact of the fire, and buying time for people to escape.

[0004] The existing fuse structure with electronic triggering directly fixes the end of a steel wire on the pull rod, and the steel wire directly pulls the brake pull rod to trigger the fuse. This makes it impossible to adjust the sensing accuracy. Moreover, as fire shutters are getting larger and larger, the fuse pulling force at the fire shutters needs to be larger, and the force pulling the steel wire can only be provided by the deformation tension of the thermal deformation material after reaching the predetermined temperature, resulting in unstable tension and unreliable fuse triggering; especially at large fire shutter doors, multiple lifting motors are provided on the same fire shutter bottom beam, and the fire shutters are synchronously driven by multiple lifting motors to open and close. If some motors are released and fused, and the other motors are not released and fused, then the fire shutter bottom beam may be bent and damaged, resulting in safety hazards for long-length fire shutters.

[0005] Therefore, in order to solve the above problems, it is necessary for us to design a multi-motor fusing control method. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-motor fusing control method, which electrically connects the fuses at several motors on the same bottom beam fireproof roller shutter. When any fuse blows, all other fuses blow at the same time, and the fusing mode is that the magnetic field disappears and the fuse plate pops up. The fuse triggering thrust is stable, and the reliability of the simultaneous fusing triggering of multiple motors is high, which effectively targets the safe fusing of long-length fireproof roller shutters.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions: A multi-motor fusing control method is applicable to a multi-motor fusing control structure, wherein the structure includes a plurality of motors arranged on a fireproof roller shutter with the same bottom beam and fuses matched with the motors, wherein the fuses include an electromagnetic component and a fuse plate; the method includes the following steps: Make electrical connections to the fuses at several motors on the bottom beam fireproof roller shutter; Before the fire curtain melts, the electromagnetic component in the fuse attracts the fuse plate; When any fuse receives a blown signal, the electromagnetic components in all fuses electrically connected to the fuse stop adsorbing the fuse plate, and the fuse plate pops out to close the fireproof roller shutter.

[0008] As a preferred embodiment of the present invention, the fuse includes a power supply component for supplying power to the electromagnetic component and an induction component electrically connected to the power supply component, and the induction component includes a contact induction component and an electrical signal receiving induction component; When the contact sensing element receives a contact signal and / or the electrical signal receiving sensing element receives a fusing electrical signal, the electromagnetic elements in all fuses electrically connected to the fuse stop adsorbing the fuse plate, and the fuse plate pops out to close the fireproof roller shutter.

[0009] As a preferred embodiment of the present invention, the fuse plate is connected to a pop-up plate, and the pop-up plate is connected to a pop-up spring; When the electromagnetic component stops adsorbing the fuse plate, the pop-up plate connected to the fuse plate pops out under the elastic force of the pop-up spring to close the fireproof roller shutter.

[0010] As a preferred embodiment of the present invention, the fuse is further provided with a communication component; The fuses at several motors on the bottom beam fireproof rolling curtain are electrically connected through the communication parts.

[0011] As a preferred embodiment of the present invention, the fuse is further provided with a control unit, and the induction component, the communication component and the power supply component are all electrically connected to the control unit; The control unit determines that the induction component receives a fuse signal, and the control units in all fuses electrically connected to the fuse communicate through the communication component. The control unit controls the power supply component to cut off power, the electromagnetic component stops adsorbing the fuse plate, and the fuse plate pops out to close the fireproof roller shutter.

[0012] As a preferred embodiment of the present invention, the communication component is a wireless communication component; The electrical connection methods between communication parts include Bluetooth, WiFi, laser, 4G and 5G.

[0013] The beneficial effect of the multi-motor fusing control method of the present invention is that the fuses at several motors on the same bottom beam fireproof roller shutter are electrically connected. When any fuse blows, all other fuses blow at the same time, and the fusing mode is that the magnetic disappearance releases the fuse plate to pop out. The fusing triggering thrust is stable, and the reliability of the simultaneous fusing triggering of multiple motors is high, which is effective for the safe fusing of long-length fireproof roller shutters. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic flow chart of a multi-motor fusing control method according to the present invention; Figure 2 This is a schematic diagram of the overall three-dimensional structure of a fuse in one embodiment of a multi-motor fusing control method of the present utility model; Figure 3 This is a schematic diagram of the overall structure of the fuse (excluding the communication component) in an embodiment of a multi-motor fusing control method of the present utility model; Figure 4 This is a schematic diagram of the overall structure of the fuse (including communication components) in an embodiment of a multi-motor fusing control method of the present utility model; In the figure: 1. Mechanical trigger part, 11. Fuse rope, 12. Trigger block, 13. First contact head, 14. Trigger spring, 2. Electromagnetic component, 21. Electromagnetic component fixing frame, 22. Contact sensing component, 23. Electric signal receiving sensing component, 24. Communication component, 3. Execution part, 31. Pop-up plate, 32. Pop-up spring, 33. Magnetic plate, 311 second contact head, 4. Bottom plate, 41. Limit plate, 42. Reset sensing component, 43. Reset motor, 5. Signal interface disk. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0016] In the following introduction, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The following introduction provides multiple embodiments of the present application. Different embodiments can be replaced or combined, so the present application can also be considered to include all possible combinations of the same and / or different embodiments described. Therefore, if one embodiment includes features A, B, and C, and another embodiment includes features B and D, then the present application should also be considered to include embodiments containing one or more of all other possible combinations of A, B, C, and D, even though the embodiment may not be clearly described in the following text.

[0017] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the elements described without departing from the scope of the present application. Various examples may appropriately omit, replace, or add various processes or components. For example, the described method may be performed in an order different from the order described, and various steps may be added, omitted, or combined. In addition, features described in some examples may be combined in other examples.

[0018] Example 1: Figures 1 to 4 As shown, Figure 1 This is a flow chart of a multi-motor fusing control method of the present invention, which is only one embodiment of the present invention. The multi-motor fusing control method is applicable to a multi-motor fusing control structure, which includes a plurality of motors and fuses matched with the motors, arranged on a fireproof roller shutter with the same bottom beam. The fuses include an electromagnetic component and a fuse plate. The lower end of a large fireproof roller shutter has a very long bottom beam, which can be ten meters or even more in length. The fireproof roller shutter and the bottom beam are very heavy, and it is impossible to be driven by a single motor for lifting and lowering. Generally, multiple motors are connected to the same bottom beam to complete the lifting and lowering drive of this large fireproof roller shutter. The most common ones are 3-link (3 motors connected to the same bottom beam) and 5-link (5 motors connected to the same bottom beam). Let's take the common 5-link motor as an example. There are 5 motors on the fireproof roller shutter with the same bottom beam, and each motor is equipped with a fuse, that is, there are 5 fuses in total, and the structure of each fuse is the same.

[0019] When multiple motors are connected to the same base beam, all fuses need to be managed under unified fusing control after these motors are installed.

[0020] The method comprises the following steps: Make electrical connections to the fuses at several motors on the bottom beam fireproof roller shutter; That is, all fuses on the bottom beam are electrically connected so that signals can be communicated; Before the fire curtain melts, the electromagnetic component in the fuse attracts the fuse plate; It should be noted here that the electromagnetic component is a magnetic component that generates magnetism when it is energized. The electromagnetic component is normally energized, that is, it generates magnetic force. The fuse plate is a magnetic component, including a magnet or a material that can be attracted by a magnet. When the electromagnetic component is energized, the electromagnetic component and the fuse plate generate magnetic attraction, and the electromagnetic component firmly adsorbs the fuse plate. When any fuse receives a blown signal, the electromagnetic components in all fuses electrically connected to the fuse stop adsorbing the fuse plate, and the fuse plate pops out to close the fireproof roller shutter.

[0021] When any fuse is blown, after signal communication, all fuses are blown at the same time, which can ensure that the bottom beam can descend at the same time and prevent damage to the bottom beam and fire rolling door.

[0022] A multi-motor fusing control method of the present invention electrically connects the fuses at several motors on the same bottom beam fireproof rolling shutter. When any fuse blows, all other fuses blow at the same time. The fusing mode is that the magnetic field disappears and the fuse plate pops out. The fusing triggering thrust is stable, and the reliability of the simultaneous fusing triggering of multiple motors is high, which effectively targets the safe fusing of long-length fireproof rolling shutters.

[0023] Example 2, still as Figures 1 to 4 The figure shown is only one embodiment of the present invention. Based on the first embodiment, in a multi-motor fusing control method of the present invention, the fuse includes a power supply for supplying power to the electromagnetic component and an induction component electrically connected to the power supply component, and the induction component includes a contact induction component 22 and an electrical signal receiving induction component 23; When the contact sensing element receives a contact signal and / or the electrical signal receiving sensing element receives a fusing electrical signal, the electromagnetic elements in all fuses electrically connected to the fuse stop adsorbing the fuse plate, and the fuse plate pops out to close the fireproof roller shutter.

[0024] The fuse plate is connected to a pop-up plate 31, and the pop-up plate is connected to a pop-up spring 32; When the electromagnetic component stops adsorbing the fuse plate, the pop-up plate connected to the fuse plate pops out under the elastic force of the pop-up spring to close the fireproof roller shutter.

[0025] In summary, the structure of a single fuse is as follows: when the induction component receives the induction signal, the power supply component is de-energized so that the electromagnetic component 2 stops adsorbing the magnetic plate 33, and the pop-up plate 31 is ejected with a large force under the elastic force of the pop-up spring 32, thereby separating the brake pad of the rolling door machine from the transmission mechanism, and the fireproof roller shutter slides down and closes by its own weight, sealing the building flue, preventing the fire from spreading between the flues on each floor, reducing the impact of the fire, and buying time for people to escape.

[0026] That is, the triggering method for the pop-up plate 31 in the present invention to pop up is magnetic demagnetization (or reduction of magnetic force), which is a new electronic triggering method. When the electromagnetic component 2 is energized, the magnetic force is greater than the elastic force of the pop-up spring 32, and the electromagnetic component 2 firmly adsorbs the magnetic plate 33. When the electromagnetic component 2 is powered off (or the power is reduced), the electromagnetic component is demagnetized (or the magnetic force is reduced), so that the magnetic force of the electromagnetic component 2 is less than the elastic force of the pop-up spring 32, and the electromagnetic component 2 cannot adsorb the magnetic plate 33, and the pop-up plate 31 pops out under the elastic force of the pop-up spring 32.

[0027] Moreover, the power supply component will be powered off (or the power supply will be reduced) only when the induction component receives the induction signal; wherein, the induction component includes a contact induction component 22 and an electrical signal receiving induction component 23, that is, the induction signal received by the induction component includes a contact signal and an electronic communication signal, and when any induction component receives the induction signal, the power supply component will be powered off (or the power supply will be reduced); it is further explained that the source of the fuse trigger signal also includes mechanical triggering and electronic triggering.

[0028] Of course, the fuse is also provided with a communication member 24; The fuses at several motors on the bottom beam fireproof roller shutter are electrically connected through the communication component 24.

[0029] The control unit is electrically connected to a wireless communication component 24. In a large-bottom-beam fireproof roller shutter with a longer span, multiple roller shutter door motors that are synchronously controlled to rise and fall are provided, so there should also be multiple fuse structures. In the event of a fire, multiple fuse structures need to be triggered and blown at the same time, and multiple roller shutter door motors need to cause the fireproof roller shutter to fall down at the same time; therefore, the wireless communication components 24 in the multiple fuse structures are electrically connected to each other, so that when any fuse structure is triggered and blown, the other fuse structures are also triggered and blown.

[0030] Furthermore, the fuse is further provided with a control unit, and the induction component, the communication component and the power supply component are all electrically connected to the control unit; The control unit determines that the induction component receives a fuse signal, and the control units in all fuses electrically connected to the fuse communicate through the communication component. The control unit controls the power supply component to cut off power, the electromagnetic component stops adsorbing the fuse plate, and the fuse plate pops out to close the fireproof roller shutter.

[0031] Specifically, the sensing element of one of the fuses (referred to as the first fuse) receives a blown signal, and the sensing element communicates with the control unit. The control unit sends a "pop-up preparation signal" to the control units of other fuses through the communication element. The other control units all receive this "pop-up preparation signal" and send back a "confirm pop-up signal" to the first fuse. At this time, the control units of all fuses simultaneously control the power supply to cut off the power and release the pop-up plate 31.

[0032] It is particularly important to note that since this application uses a magnetic release method, the release speed is fast and only the power supply needs to be cut off. Multiple machines can be interconnected, and the release time error of multiple fuses can be controlled within 0.2 seconds. There is no risk of mechanical jamming, and the simultaneous release of multiple motors on the same bottom beam is safer and more stable.

[0033] Of course, the communication element 24 is a wireless communication element; The electrical connection methods between communication parts include Bluetooth, WiFi, laser, 4G and 5G.

[0034] Example 3, still as Figures 1 to 4 The figure shown is only one embodiment of the present invention. On the basis of the second embodiment, in a multi-motor fusing control method of the present invention, the fuse further includes a mechanical triggering part 1, the mechanical triggering part 1 includes a fuse rope 11 and a triggering block 12 connected to the fuse rope 11, and the triggering block 12 is provided with a first contact head 13 extending toward the contact sensing element 22.

[0035] When the temperature near the fire shutter door rises, the temperature-induced deformation element deforms, causing the fuse rope 11 to move, thereby causing the trigger block 12 to move until the first contact head 13 contacts the contact sensing component 22. The contact sensing component 22 feeds back the contact signal to the power supply component, and the pop-up block pops out.

[0036] That is, the melting is mechanically triggered by temperature rise and deformation.

[0037] In the present invention, a trigger spring 14 is provided on the side of the trigger block 12 away from the fuse rope 11. At room temperature, the temperature-increasing deformation element does not deform, causing the temperature-increasing deformation element to tighten the fuse rope 11. The fuse rope 11 just offsets the elastic force of the trigger spring 14, and the trigger block 12 does not move. When the temperature at the fireproof roller shutter rises, the temperature-increasing deformation element begins to lengthen, causing the fuse rope 11 to slowly loosen until the temperature reaches a preset threshold, generally 70 degrees Celsius. At this point, the fuse rope 11 loosens to a certain extent, and the trigger spring 14, under the action of its elastic force, pulls the trigger block 12 toward the side away from the fuse rope 11 by the target displacement amount, causing the first contact head 13 to contact the contact sensing element 22.

[0038] The fuse further includes a bottom plate 4 and a cover plate arranged on the bottom plate 4 , and at least a portion of the sensing portion and the execution portion 3 are located between the bottom plate 4 and the cover plate.

[0039] An electromagnetic component fixing frame 21 for fixing the electromagnetic component 2 is provided on the bottom plate 4 , so that the position of the electromagnetic component 2 is stable.

[0040] Of course, a limiting plate 41 is provided on the bottom plate 4 , and a through hole is provided on the limiting plate 41 for facilitating the passage of the pop-up plate 31 .

[0041] It should be noted that the magnetic electromagnetic component is also convenient for resetting the actuator, that is, after the fire, the electromagnetic component 2 is powered on again and the magnetic plate 33 can be sucked back, and the repeated use stability is high.

[0042] Of course, some fireproof roller shutters require a larger pop-up stroke or a larger pop-up force (the elastic coefficient of the pop-up spring is large), which makes it impossible for the electromagnetic component 2 to reset. In this case, a reset motor 43 is required to drive the pop-up plate 31 to reset. The bottom plate 4 is provided with a reset motor 43 for driving the displacement of the pop-up plate 31. Of course, the reset process of multiple fuses is also executed simultaneously.

[0043] Here, the base plate 4 is provided with a reset sensing component 42 electrically connected to the power supply component, and the pop-up plate 31 is provided with a second contact head 311 extending toward the reset sensing component 42. When the pop-up plate 31 is reset and displaced until the second contact head 311 contacts the reset sensing component 42, it indicates that the magnetic plate 33 is in contact with the electromagnetic component 2 for stable adsorption.

[0044] Of course, the reset induction element and the induction element are both electrically connected to the power supply element through the control unit.

[0045] The bottom plate 4 is provided with a signal interface disk 5 electrically connected to the electric signal receiving induction element 23 . The signal interface disk 5 is provided with a plurality of communication interfaces, which may be wired interfaces or wireless interfaces.

[0046] The signal interface disk 5 can trigger the fuse through active electrical signals and other electronic sensing elements, and the fuse triggering reliability is high; specific signals include: active fuse signals sent by the control center, fire emergency signals sent by the fire center, emergency self-test signals of fireproof roller shutters on the wall, active protection signals sent by control buttons on the wall, etc.

[0047] The present invention is not limited to the above specific embodiments, and various modifications and variations are possible. Any modification, equivalent replacement, improvement, etc. made to the above embodiments based on the technical essence of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A multi-motor fusing control method, adapted for a multi-motor fusing control structure, comprising a plurality of motors mounted on a common bottom beam fireproof roller shutter and fuses matched with the motors, wherein the fuses comprise an electromagnetic element and a fuse plate; It is characterized by: The following steps are involved: Make electrical connections to the fuses at several motors on the bottom beam fireproof roller shutter; Before the fire curtain melts, the electromagnetic component in the fuse attracts the fuse plate; When any fuse receives a blown signal, the electromagnetic components in all fuses electrically connected to the fuse stop adsorbing the fuse plate, and the fuse plate pops out to close the fireproof roller shutter.

2. A multi-motor fusing control method according to claim 1, characterized in that: The fuse includes a power supply component for supplying power to the electromagnetic component and an induction component electrically connected to the power supply component, wherein the induction component includes a contact induction component and an electrical signal receiving induction component; When the contact sensing element receives a contact signal and / or the electrical signal receiving sensing element receives a fusing electrical signal, the electromagnetic elements in all fuses electrically connected to the fuse stop adsorbing the fuse plate, and the fuse plate pops out to close the fireproof roller shutter.

3. The multi-motor fusing control method according to claim 1, characterized in that: The fuse plate is connected to a pop-up plate, and the pop-up plate is connected to a pop-up spring; When the electromagnetic component stops adsorbing the fuse plate, the pop-up plate connected to the fuse plate pops out under the elastic force of the pop-up spring to close the fireproof roller shutter.

4. A multi-motor fusing control method according to claim 2, characterized in that: The fuse is also provided with a communication member; The fuses at several motors on the bottom beam fireproof rolling curtain are electrically connected through the communication parts.

5. A multi-motor fusing control method according to claim 4, characterized in that: The fuse is further provided with a control unit, and the induction component, the communication component and the power supply component are all electrically connected to the control unit; The control unit determines that the induction component receives a fuse signal, and the control units in all fuses electrically connected to the fuse communicate through the communication component. The control unit controls the power supply component to cut off power, the electromagnetic component stops adsorbing the fuse plate, and the fuse plate pops out to close the fireproof roller shutter.

6. A multi-motor fusing control method according to claim 4, characterized in that: The communication element is a wireless communication element; The electrical connection methods between communication parts include Bluetooth, WiFi, laser, 4G and 5G.

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