Conveyor track disconnection device and method for fire doors

Abstract

The present invention discloses a device and method for disconnecting a conveying track through a fireproof door, the device comprises a disconnected section beam, a driving unit and a locking mechanism; the driving unit comprises a driving source, a main shaft, a mounting plate and a torsion plate, the driving source is connected to the main shaft by transmission, the main shaft is connected to the mounting plate, the mounting plate is connected to the disconnected section beam, a torsion plate is fixedly arranged on the driving source, and the torsion plate is connected to the upstream track; the locking mechanism comprises an electromagnetic lock, an electromagnetic lock mounting plate, an armature, an armature mounting plate, a lever, a rotating shaft and a supporting seat, the electromagnetic lock is arranged on the electromagnetic lock mounting plate, the electromagnetic lock mounting plate is connected to the downstream track, a supporting seat is arranged on the downstream track, the armature mounting plate, the lever and the rotating shaft constitute a rotating part rotating around the supporting seat, and the armature mounting plate is provided with an armature. The disconnected section beam of the present invention is free to rotate, will not be subject to resistance from the driving source, can be quickly disconnected, and can be driven by the driving source to rotate the disconnected section beam when closed, without adding an additional power supply, and is safer and more reliable when the system is powered off.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics conveying equipment, and in particular to a conveying track disconnection device and method passing through a fire door. Background Art

[0002] In order to improve the transportation efficiency and make better use of space, many large supermarkets, garment factories, etc. now use hanging conveyor systems to transport products across areas and workstations. As supermarkets and factories are too large, fire doors are needed to divide the site for fire prevention reasons, and the conveying equipment needs to cross the fire doors to transport goods, while not affecting the closing of the fire doors in the event of a fire.

[0003] For this working scenario, the existing conveyor track disconnection device and method through the fire door adopts a cylinder push-up type or an electromagnetic plug-in lock core type. Among them, the cylinder push-up type uses the cylinder to push out and retract two strokes to achieve disconnection and resetting. Although this method is easy to control, it requires an air source to pull the air pipe and there are problems such as air leakage, so the stability and safety are insufficient; in addition, the electromagnetic plug-in lock core type conveyor track disconnection device and method through the fire door uses a motor to drive the gear to rotate to achieve the rotation of the conveyor track disconnection device and method through the fire door, and then uses an electromagnetic lock to lock the lock core to fix the device. Although this method does not require pulling the air pipe, it uses electromagnetic force to pull out the lock core. When a fire occurs and the power is cut off, the electromagnetic lock cannot work, so it is necessary to install a UPS (Uninterruptible Power Supply) to ensure that the electromagnetic lock can still operate when the system is powered off. Therefore, in summary, the existing conveyor track disconnection device and method through the fire door have problems such as insufficient stability and safety, high cost, and inconvenient on-site installation and debugging. Summary of the invention

[0004] In order to solve the above technical problems, an object of the present invention is to provide a conveying track disconnecting device through a fire door, comprising a disconnecting segment beam, a driving part connected to an upstream track, and a locking mechanism connected to a downstream track;

[0005] The driving part includes a driving source, a main shaft, a mounting plate and a torsion plate, wherein the driving source is connected to the main shaft by transmission, the main shaft is connected to the mounting plate, the mounting plate is connected to the disconnected segment beam, the driving source is fixedly provided with a torsion plate, and the torsion plate is connected to the upstream track;

[0006] The locking mechanism includes an electromagnetic lock, an electromagnetic lock mounting plate, an armature, an armature mounting plate, a lever, a rotating shaft and a support seat. The electromagnetic lock is arranged on the electromagnetic lock mounting plate. The electromagnetic lock mounting plate is connected to a downstream track, and a support seat is provided on the downstream track. The armature mounting plate, the lever and the rotating shaft constitute a rotating part rotating around the support seat, and the armature mounting plate is provided with an armature.

[0007] When the electromagnetic lock is energized to attract the armature, the rotating part is fixed on the support base. When the electromagnetic lock is de-energized to release the armature, the rotating part rotates around the support base.

[0008] Adopting the above technical solution, the rotating part further includes a locking plate. The locking plate is connected to the rotating shaft. A positioning pin is provided on the locking plate, and a positioning hole adapted to the positioning pin is provided on the disconnection section beam.

[0009] Adopting the above technical solution, the locking mechanism further includes a microswitch and a microswitch mounting plate. The microswitch is arranged on the electromagnetic lock mounting plate through the microswitch mounting plate.

[0010] Adopting the above technical solution, the driving part includes a flat key, a driving plate, a rotating fixed seat and a special-shaped shaft end retaining ring. The flat key, the driving plate, the rotating fixed seat and the special-shaped shaft end retaining ring form a rotating structure rotating around the main shaft. The rotating fixed seat is connected to the mounting plate.

[0011] Adopting the above technical solution, the driving part includes a limit switch. The limit switch is connected to the driving source on the side of the special-shaped shaft end retaining ring.

[0012] Adopting the above technical solution, the driving source is a motor.

[0013] Adopting the above technical solution, the driving part includes a spacer sleeve. A spacer sleeve is provided at the output shaft end of the driving source.

[0014] Another object of the present invention is to provide a method for disconnecting the conveying track of a fire door, including:

[0015] When a fire occurs, the electromagnetic lock is de-energized. The armature and the armature mounting plate drive the lever and the rotating shaft to rotate around the support base under the action of gravity. At the same time, the microswitch loses the contact signal, and the disconnection section beam rotates around the main shaft under the action of gravity to achieve disconnection;

[0016] When it is necessary to close to make the conveying track work normally after disconnection, the electromagnetic lock is energized, the driving source rotates, the flat key on the main shaft drives the driving plate, the rotating fixed seat, the special-shaped shaft end retaining ring, the mounting plate and the disconnection section beam to rotate. During the rotation of the disconnection section beam, it touches the lever to make it rotate. The lever drives the armature, the armature mounting plate and the rotating shaft to rotate around the support base. When the armature rotates and contacts the energized electromagnetic lock to make the electromagnetic lock attract, the microswitch is triggered at the same time. The trigger signal of the microswitch makes the driving source drive the special-shaped shaft end retaining ring to start rotating in the reverse direction. The disconnection section beam falls on the locking plate. When the driving source rotates in the reverse direction to make the special-shaped shaft end retaining ring trigger the limit switch, the driving source stops rotating and stays in this position to standby to achieve closing.

[0017] Adopting the above technical solution, the driving plate has an interval of more than 90° to rotate freely around the main shaft.

[0018] With the above technical solution, the lever drives the armature to rotate under the drive of the disconnecting beam section, causing it to contact and engage with the lock head of the electromagnetic lock. At the same time, the lever does not block the action of the disconnecting beam section falling onto the locking plate.

[0019] Advantages of the present invention: The disconnecting beam section of the present invention rotates freely and is not subject to the resistance of the drive source. Therefore, it can be quickly disconnected. When closing, the disconnecting beam section can be rotated under the drive of the drive source without additional power supply, making it safer and more reliable when the system is powered off and adaptable to various scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present invention.

[0021] Figure 2 is Figure 1 a partial enlarged schematic view of part A above.

[0022] Figure 3 is Figure 1 a partial enlarged schematic view of part B above.

[0023] Figure 4 is a schematic structural diagram of the drive part of the present invention.

[0024] Figure 5 is a schematic structural diagram of the locking mechanism of the present invention.

[0025] Explanation of reference numerals in the figures: 1, disconnecting beam section; 11, positioning hole; 2, drive part; 20, drive source; 21, main shaft; 22, mounting plate; 23, torsion plate; 24, flat key; 25, drive plate; 26, rotating fixed seat; 27, special-shaped shaft end retaining ring; 28, limit switch; 29, spacer sleeve; 3, locking mechanism; 30, electromagnetic lock; 31, electromagnetic lock mounting plate; 32, armature; 33, armature mounting plate; 34, lever; 35, rotating shaft; 36, support seat; 37, locking plate; 371, positioning pin; 38, microswitch; 39, microswitch mounting plate; 4, upstream track; 5, downstream track; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0027] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0028] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Referring to Figures 1 to 5 As shown, Embodiment 1 of the present invention provides a conveying track disconnection device for a fire door, which includes a disconnection section beam 1, a driving part 2, and a locking mechanism 3. One end of the disconnection section beam 1 is connected to the upstream track 4, and the other end of the disconnection section beam 1 is detachably connected to the downstream track 5.

[0030] Specifically, on the one hand, the driving part 2 includes a driving source 20, a spacer 29, a main shaft 21, a mounting plate 22, a torsion plate 23, a flat key 24, a driving plate 25, a rotating fixed seat 26, and a special-shaped shaft end retaining ring 27. A spacer 29 is provided at the output shaft end of the driving source 20. The driving source 20 is drivingly connected to the main shaft 21. The main shaft 21 is connected to the mounting plate 22. The mounting plate 22 is connected to the disconnection section beam 1. A torsion plate 23 is fixedly provided on the driving source 20. The torsion plate 23 is connected to the upstream track 4. The flat key 24, the driving plate 25, the rotating fixed seat 26, and the special-shaped shaft end retaining ring 27 form a rotating structure that rotates around the main shaft 21. The rotating fixed seat 26 is connected to the mounting plate 22. Further, the driving part 2 includes a limit switch 28, and the limit switch 28 is connected to the driving source 20 on the side of the special-shaped shaft end retaining ring 27.

[0031] On the other hand, the locking mechanism 3 includes an electromagnetic lock 30, an electromagnetic lock mounting plate 31, an armature 32, an armature mounting plate 33, a lever 34, a rotating shaft 35, and a support seat 36. The electromagnetic lock 30 is provided on the electromagnetic lock mounting plate 31. The electromagnetic lock mounting plate 31 is connected to the downstream track 5. A support seat 36 is provided on the downstream track 5. The armature mounting plate 33, the lever 34, and the rotating shaft 35 form a rotating part that rotates around the support seat 36. The armature mounting plate 33 is provided with an armature 32. When the electromagnetic lock 30 is energized to attract the armature 32, the rotating part is fixed on the support seat 36. When the electromagnetic lock 30 is de-energized to release the armature 32, the rotating part rotates around the support seat 36. Further, the rotating part further includes a locking plate 37. The locking plate 37 is connected to the rotating shaft 35. A positioning pin 371 is provided on the locking plate 37. A positioning hole 11 adapted to the positioning pin 371 is provided on the disconnection section beam 1.

[0032] Furthermore, the locking mechanism 3 further includes a microswitch 38 and a microswitch mounting plate 39. The microswitch 38 is provided on the electromagnetic lock mounting plate 31 through the microswitch mounting plate 39.

[0033] The following takes a motor, preferably a motor, to illustrate a method for disconnecting the conveying track through a fire door according to the present invention as follows:

[0034] When a fire occurs, the electromagnetic lock 30 loses power, and the armature 32 and the armature mounting plate 33 drive the lever 34 and the rotating shaft 35 to rotate around the support seat 36 under the action of gravity. At the same time, the microswitch 38 loses the contact signal, and the disconnecting section beam 1 rotates around the main shaft 21 under the action of gravity to achieve disconnection.

[0035] When it is necessary to close and make the conveying track work normally after disconnection, the electromagnetic lock 30 is powered on, the motor rotates, and the flat key 24 on the main shaft 21 drives the driving plate 25, the rotating fixing seat 26, the special-shaped shaft end retaining ring 27, the mounting plate 22 and the disconnecting section beam 1 to rotate. During the rotation of the disconnecting section beam 1, it touches the lever 34 and makes it rotate. The lever 34 drives the armature 32, the armature mounting plate 33 and the rotating shaft 35 to rotate around the support seat 36. When the armature 32 rotates and contacts the powered-on electromagnetic lock 30 to make the electromagnetic lock 30 attract and trigger the microswitch 38 at the same time, the trigger signal of the microswitch 38 makes the motor drive the special-shaped shaft end retaining ring 27 to start rotating in the reverse direction. The disconnecting section beam 1 falls on the locking plate 37. When the motor rotates in the reverse direction and the special-shaped shaft end retaining ring 27 triggers the limit switch 28, the motor stops rotating and stops at this position to standby for closing. When both the microswitch 38 and the limit switch 28 have trigger signals, the disconnection device is closed and completed.

[0036] Further, the disconnection state includes the following two situations:

[0037] Situation 1: When a fire occurs, the system receives a fire alarm, issues an instruction, and controls the electromagnetic lock 30 in the locking mechanism 3 to lose power. The armature 32 and the armature mounting plate 33 drive the lever 34 and the rotating shaft 35 to rotate around the support seat 36 under the action of gravity. At the same time, the microswitch 38 loses the contact signal, and the disconnecting section beam 1 loses the lower support and then rotates around the main shaft 21 under the action of gravity to achieve the disconnection function.

[0038] Situation 2: If the system loses power when a fire occurs, or the issued instruction cannot reach the receiving end, or the system does not receive a fire alarm when a fire occurs, and at this time the fire shutter door drops. When the fire shutter door drops, it triggers the limit switch 28 at the fire shutter door, causing the electromagnetic lock 30 in the locking mechanism 3 to lose power. The armature 32 and the armature mounting plate 33 drive the lever 34 and the rotating shaft 35 to rotate around the support seat 36 under the action of gravity. At the same time, the microswitch 38 loses the contact signal, and the disconnecting section beam 1 loses the lower support and then rotates around the main shaft 21 under the action of gravity to achieve the disconnection function.

[0039] Furthermore, the drive plate 25 can freely rotate around the main shaft 21 within an interval of more than 90° without driving the main shaft 21 and the motor to rotate. At the same time, the drive plate 25 can rotate around the main shaft 21 under the drive of the flat key 24 when the motor rotates. Therefore, when disconnected, the disconnected section beam 1 rotates freely and is not subject to the resistance of the motor, enabling rapid disconnection; when closed, the disconnected section beam 1 can be rotated under the drive of the motor.

[0040] In addition, the lever 34 drives the armature 32 to rotate under the drive of the disconnected section beam 1, making it contact and engage with the lock head of the electromagnetic lock 30. At the same time, the lever 34 does not block the action of the disconnected section beam 1 falling on the locking plate 37. That is, after the microswitch 38 sends a contact signal, the motor reverses, and the disconnected section beam 1 falls on the locking plate 37. The positioning pin 371 on the locking plate 37 is inserted into the positioning hole 11 of the disconnected section beam 1 to form a fixation.

[0041] Advantages of the present invention: The disconnected section beam of the present invention rotates freely and is not subject to the resistance of the drive source. Therefore, rapid disconnection can be achieved. When closed, the disconnected section beam can be rotated under the drive of the drive source without additional power supply. It is safer and more reliable when the system is powered off and can be adapted to various scenarios.

[0042] The above-described embodiments are only preferred embodiments cited to fully illustrate the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims

1. A conveyor track disconnection device through a fire door, Features: It includes a disconnected segment beam, a driving portion connected to the upstream track, and a locking mechanism connected to the downstream track; The driving part includes a driving source, a main shaft, a mounting plate and a torsion plate, wherein the driving source is connected to the main shaft by transmission, the main shaft is connected to the mounting plate, the mounting plate is connected to the disconnected segment beam, the driving source is fixedly provided with a torsion plate, and the torsion plate is connected to the upstream track; The locking mechanism comprises an electromagnetic lock, an electromagnetic lock mounting plate, an armature, an armature mounting plate, a lever, a rotating shaft and a supporting seat, wherein the electromagnetic lock is arranged on the electromagnetic lock mounting plate, the electromagnetic lock mounting plate is connected to a downstream track, a supporting seat is arranged on the downstream track, the armature mounting plate, the lever and the rotating shaft constitute a rotating part rotating around the supporting seat, and the armature mounting plate is provided with an armature; The rotating part also includes a locking plate, which is connected to the rotating shaft; the locking mechanism also includes a micro switch and a micro switch mounting plate, and the micro switch is arranged on the electromagnetic lock mounting plate through the micro switch mounting plate; the driving part includes a flat key, a driving plate, a rotating fixed seat and a special-shaped shaft end retaining ring, and the flat key, the driving plate, the rotating fixed seat and the special-shaped shaft end retaining ring constitute a rotating structure rotating around the main axis, and the rotating fixed seat is connected to the mounting plate; the driving part includes a limit switch, and the limit switch is connected to the driving source on the side of the special-shaped shaft end retaining ring; When the electromagnetic lock is powered and the armature is attracted, the rotating part is fixed on the support seat. When the electromagnetic lock loses power and releases the armature, the rotating part rotates around the support seat. When a fire occurs, the electromagnetic lock loses power, the armature and the armature mounting plate drive the lever and the rotating shaft to rotate around the support seat under the action of gravity, and the micro switch loses the contact signal, and the disconnecting section beam rotates around the main shaft under the action of gravity to achieve disconnection; When it needs to be closed after disconnection to make the conveyor track work normally, the electromagnetic lock is energized, the driving source rotates, and the flat key on the main shaft drives the driving plate, the rotating fixed seat, the special-shaped shaft end retaining ring, the mounting plate and the disconnected section beam to rotate. The disconnected section beam touches the lever during the rotation to make it rotate, and the lever drives the armature, the armature mounting plate and the rotating shaft to rotate around the support seat. When the armature rotates and contacts the energized electromagnetic lock, the electromagnetic lock is attracted and the micro switch is triggered at the same time. The micro switch triggers a signal to cause the driving source to drive the special-shaped shaft end retaining ring to start rotating in the opposite direction, and the disconnected section beam falls on the locking plate. When the driving source reverses, the special-shaped shaft end retaining ring triggers the limit switch, and the driving source stops rotating and stops at this position to wait for closing.

2. The conveyor track disconnection device through the fire door according to claim 1, Features: The locking plate is provided with a positioning pin, and the disconnected section beam is provided with a positioning hole matched with the positioning pin.

3. The conveyor track disconnecting device through a fire door as claimed in claim 1, Features: The driving source is a motor.

4. The conveyor track disconnection device through the fire door according to claim 1, Features: The driving part comprises a spacer sleeve, and the shaft outlet end of the driving source is provided with a spacer sleeve.

5. The conveyor track disconnection device through the fire door according to claim 1, Features: The driving plate can rotate freely around the main axis within a range of more than 90°.

6. The conveying track disconnection device for a fire door according to claim 1, characterized in that: the lever drives the armature to rotate under the drive of the disconnection section beam, so that the armature contacts and engages with the lock head of the electromagnetic lock. At the same time, the lever does not block the action of the disconnection section beam falling on the locking plate.

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