Guide rail noise reduction roller shutter door

Abstract

The invention provides a guide rail noise reduction roller shutter door, and relates to the technical field of roller shutter doors, the guide rail noise reduction roller shutter door comprises a guide rail, a door body is arranged on the inner side of the guide rail, a transmission box used for supporting the door body is assembled at the top end of the guide rail, a reel is rotatably arranged in the transmission box, and an emergency stop assembly is arranged at the end part of one side of the reel; a pawl is arranged on one side over the emergency stop assembly, a conductive slip ring is arranged on one side of the emergency stop assembly, a rotating part of the conductive slip ring is arranged on a reel in a sleeving mode, a motor is arranged on the side, away from the emergency stop assembly, of the reel, the rotating part of the motor is fixedly connected with the reel, and a plurality of sound absorption plates are fixedly installed on the outer wall of the transmission box. And the door body is prevented from falling at high speed due to self weight during power failure, so that serious accidents caused by high-speed falling of the door body due to self weight are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of rolling shutter doors, in particular to a guide rail noise reduction rolling shutter door. Background Art

[0002] A rolling shutter door is a door body that is hinged by multiple pieces of metal or non-metallic plates (such as aluminum alloy, steel, PVC) and can be opened or closed by vertically rolling along guide rails on both sides. It is characterized by saving space, strong anti-theft and high durability. It is widely used in shops, garages, warehouses and other places. Modern rolling shutter doors often have noise-reducing structures and are extremely practical. At the same time, the appearance can be customized (such as perforated plates, colored coatings) to meet architectural aesthetic requirements.

[0003] As disclosed in a Chinese patent: a rolling shutter door with a noise reduction function, application number: CN202320889681.6, includes a guide rail, a door body is provided on the inner side of the guide rail, and a transmission box for supporting the door body is equipped on the top of the guide rail. A noise reduction structure is fixedly connected to one side of the door body. The noise reduction structure is used to reduce the noise when the door body descends, and the top of the transmission box is fixedly connected to a limiting frame, and a sound-absorbing plate is slidably connected to the inner side of the limiting frame. A positioning mechanism is provided at the bottom end of the limiting frame. The positioning mechanism is used to form a stop for the sound-absorbing plate. The noise reduction structure includes a noise reduction frame, an extension frame, a conduction rod, a buffer plate, a sound-absorbing spring and a stabilizing sliding rod. The utility model relates to the technical field of rolling shutter doors; the utility model can utilize the displacement of the conduction rod to compress the sound-absorbing spring and the noise reduction spring through the structural coordination of the noise reduction structure, so as to reduce the noise when the door body contacts the ground, and can avoid damage caused by direct contact between the door body and the ground.

[0004] However, in the above technical solution, during the use of traditional rolling shutter doors, the door body is usually driven by a motor or manually operated to open and close. However, due to the heavy weight of the door body, if a power outage or drive system failure occurs during operation, the door body is very likely to lose control and fall at high speed due to gravity. This high-speed fall will not only cause serious damage to the door body itself, but also pose a serious safety threat to people, equipment or vehicles below, and may even cause personal injury or property damage. Summary of the Invention

[0005] To address the shortcomings of the existing technology, the present invention provides a guide rail noise-reducing rolling shutter door that effectively solves the problem in the background art that, during the use of traditional rolling shutter doors, the door body is usually driven by a motor or manually operated to open and close. However, due to the heavy weight of the door body, if a power outage or drive system failure occurs during operation, the door body is very likely to lose control and fall at high speed due to gravity. This high-speed fall not only causes serious damage to the door body itself, but also poses a serious safety threat to people, equipment or vehicles below, and may even cause personal injury or property damage accidents.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a guide rail noise reduction rolling shutter door, comprising a guide rail, a door body is provided on the inner side of the guide rail, a transmission box for supporting the door body is equipped on the top of the guide rail, a reel is rotatably provided in the transmission box, an emergency stop assembly is provided at one end of the reel, a pawl is provided on the side directly above the emergency stop assembly, a conductive slip ring is provided on one side of the emergency stop assembly, the rotating part of the conductive slip ring is sleeved on the reel, a motor is provided on the side of the reel away from the emergency stop assembly, the rotating part of the motor is fixedly connected to the reel, and a number of sound-absorbing panels are fixedly installed on the outer wall of the transmission box.

[0007] Preferably, the pawl, conductive slip ring and motor are all fixedly mounted on the transmission box.

[0008] Preferably, the emergency stop assembly includes an assembly base, a first groove is provided on the assembly base, and an electromagnet is fixedly installed in the first groove.

[0009] Preferably, a plurality of through grooves are provided on the inner wall of the first groove, ratchet teeth are provided in the through grooves, and second grooves are provided on the inner walls on both sides of the through groove.

[0010] Preferably, the electromagnet is electrically connected to the rotating power supply part of the conductive slip ring.

[0011] Preferably, the ratchet comprises a ratchet body, and slide plates are fixedly mounted on outer walls on both sides of the ratchet body.

[0012] Preferably, a spring is fixedly provided on a side of the slide close to the electromagnet.

[0013] Preferably, the ratchet body slides in the through groove.

[0014] Preferably, the slide slides in the second groove.

[0015] Preferably, the spring is fixedly installed in the second groove.

[0016] The present invention provides a guide rail noise reduction rolling shutter door. It has the following beneficial effects: (1) The present invention drives the reel to rotate by a motor, and retracts and extends the door body through the reel, and reduces noise through the sound-absorbing board. During the process of retracting and extending the door body, the electromagnet is energized through the conductive slip ring, so that the electromagnet is always in a magnetic state, and the ratchet body is magnetically attracted by the electromagnet. The ratchet body moves toward the electromagnet, and the slide plate moves with the ratchet body. The spring is deformed, and the ratchet body is fixed inside the through slot by magnetic attraction. At this time, since the ratchet body is inside the through slot, the ratchet body will not interfere with the rotation of the component base. When the power is suddenly cut off, the electromagnet exits the magnetic state, and the spring rebounds, causing the ratchet body to return to its original position. At this time, a part of the ratchet body is located outside the through slot, and then the unidirectional rotation of the pawl and the ratchet is used to limit the rotation direction of the component base, and then the rotation direction of the reel is limited by the component base, so that the reel can only reel in the door body, which is convenient for reeling in after power is cut off, and the door body cannot be extended, thereby preventing the door body from falling at high speed due to its own weight when the power is cut off, and preventing the door body from falling at high speed due to its own weight and causing serious accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 Schematic diagram of the internal structure of the present invention; Figure 3 Schematic diagram of the structure of the emergency stop assembly in the present invention; Figure 4 Schematic diagram of the structure of the ratchet in the present invention.

[0018] Among them, 1. guide rail; 2. door body; 3. transmission box; 4. reel; 5. emergency stop assembly; 501. assembly base; 502. first groove; 503. electromagnet; 504. through groove; 505. ratchet; 50501. ratchet body; 50502. slide plate; 50503. spring; 506. second groove; 6. pawl; 7. conductive slip ring; 8. motor; 9. sound absorbing panel. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] like Figure 1 and Figure 2As shown, an embodiment of the present invention provides a guide rail noise reduction rolling shutter door, comprising a guide rail 1), a door body 2 is provided on the inner side of the guide rail 1, a transmission box 3 for supporting the door body 2 is equipped at the top of the guide rail 1, a reel 4 is rotatably provided in the transmission box 3, an emergency stop component 5 is provided at one end of the reel 4, a pawl 6 is provided on the side directly above the emergency stop component 5, a conductive slip ring 7 is provided on one side of the emergency stop component 5, the rotating part of the conductive slip ring 7 is sleeved on the reel 4, a motor 8 is provided on the side of the reel 4 away from the emergency stop component 5, the rotating part of the motor 8 is fixedly connected to the reel 4, and a plurality of sound absorbing panels 9 are fixedly installed on the outer wall of the transmission box 3.

[0021] like Figure 3 As shown, the emergency stop assembly 5 includes an assembly base 501, a first groove 502 is provided on the assembly base 501, and an electromagnet 503 is fixedly installed in the first groove 502; A plurality of through grooves 504 are provided on the inner wall of the first groove 502 . Ratchet teeth 505 are provided in the through grooves 504 . Second grooves 506 are provided on the inner walls on both sides of the through groove 504 .

[0022] By means of the above technical solution, when the door body 2 is retracted or extended, the electromagnet 503 is energized through the conductive slip ring 7, so that the electromagnet 503 is always in a magnetic state, and the ratchet 505 is magnetically attracted by the electromagnet 503, so that the ratchet 505 moves toward the inside of the through slot 504, thereby fixing the ratchet 505 inside the through slot 504 by magnetic attraction. At this time, since the ratchet 505 is located inside the through slot 504, the ratchet 505 will not interfere with the rotation of the component base 501. However, when the power is cut off, the electromagnet 503 exits the magnetic state and the ratchet 505 returns to its original position. At this time, a part of the ratchet 505 is located outside the through slot 504. Then, the unidirectional rotation of the pawl 6 and the ratchet 505 limits the rotation direction of the component base 501, and then the rotation direction of the reel 4 is limited by the component base 501, so that the reel 4 can only reel in the door body 2 and cannot extend the door body 2, thereby preventing the door body 2 from falling at high speed due to its own weight when the power is cut off.

[0023] like Figure 4 As shown, the ratchet 505 includes a ratchet body 50501 , and slide plates 50502 are fixedly mounted on both sides of the outer walls of the ratchet body 50501 ; A spring 50503 is fixedly provided on one side of the slide plate 50502 close to the electromagnet 503 .

[0024] Through the above technical solution, when the electromagnet 503 magnetically attracts the ratchet body 50501, the ratchet body 50501 moves toward the electromagnet 503, the slide 50502 follows the ratchet body 50501 to move, and the spring 50503 is deformed. When the electromagnet 503 exits the magnetic attraction state, the spring 50503 rebounds, causing the ratchet body 50501 to return to its original position.

[0025] Working principle: The present invention drives the reel 4 to rotate through the motor 8, and the door body 2 is retracted and extended through the reel 4, and noise is reduced by the sound-absorbing plate 9. During the process of retracting and extending the door body 2, the electromagnet 503 is energized through the conductive slip ring 7, so that the electromagnet 503 is always in a magnetic state, and the ratchet body 50501 is magnetically attracted by the electromagnet 503. The ratchet body 50501 moves toward the electromagnet 503, and the slide plate 50502 moves with the ratchet body 50501. The spring 50503 is deformed, thereby fixing the ratchet body 50501 inside the through groove 504 through magnetic attraction. At this time, since the ratchet body 50501 is located inside the through groove 504, the ratchet body 50501 will It will not interfere with the rotation of the component base 501. When the power is suddenly cut off, the electromagnet 503 exits the magnetic state, and the spring 50503 rebounds, causing the ratchet body 50501 to return to its original position. At this time, a part of the ratchet body 50501 is located outside the through slot 504. Then, the unidirectional rotation of the pawl 6 and the ratchet 505 is used to limit the rotation direction of the component base 501, and then the rotation direction of the reel 4 is limited by the component base 501, so that the reel 4 can only reel in the door body 2, which is convenient for reeling in the door body 2 after power is cut off, and the door body 2 cannot be extended, thereby preventing the door body 2 from falling at high speed due to its own weight when the power is cut off, and preventing the door body 2 from falling at high speed due to its own weight and causing serious accidents.

[0026] When the door body 2 is retracted or extended, the electromagnet 503 is energized through the conductive slip ring 7, so that the electromagnet 503 is always in a magnetic state, and the ratchet 505 is magnetically attracted by the electromagnet 503, so that the ratchet 505 moves toward the inside of the through slot 504, thereby fixing the ratchet 505 inside the through slot 504 by magnetic attraction. At this time, since the ratchet 505 is located inside the through slot 504, the ratchet 505 will not interfere with the rotation of the component base 501. When the power is suddenly cut off, the electromagnet 503 exits the magnetic state and the ratchet 505 returns to its original position. At this time, a part of the ratchet 505 is located outside the through slot 504, and then the unidirectional rotation of the pawl 6 and the ratchet 505 is used to limit the rotation direction of the component base 501, and then the rotation direction of the reel 4 is limited by the component base 501, so that the reel 4 can only reel the door body 2, and cannot extend the door body 2, thereby preventing the door body 2 from falling at high speed due to its own weight when the power is cut off.

[0027] Among them, when the electromagnet 503 magnetically attracts the ratchet body 50501, the ratchet body 50501 moves toward the electromagnet 503, the slide 50502 moves with the ratchet body 50501, and the spring 50503 deforms. When the electromagnet 503 exits the magnetic attraction state, the spring 50503 rebounds, causing the ratchet body 50501 to return to its original position.

[0028] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. Any obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A guide rail noise reduction rolling shutter door, comprising a guide rail (1), a door body (2) provided on the inner side of the guide rail (1), and a transmission box (3) for supporting the door body (2) provided on the top end of the guide rail (1), characterized in that: A reel (4) is rotatably provided in the transmission box (3), an emergency stop assembly (5) is provided at one end of the reel (4), a ratchet (6) is provided on the side directly above the emergency stop assembly (5), a conductive slip ring (7) is provided on one side of the emergency stop assembly (5), a rotating portion of the conductive slip ring (7) is sleeved on the reel (4), a motor (8) is provided on the side of the reel (4) away from the emergency stop assembly (5), a rotating portion of the motor (8) is fixedly connected to the reel (4), and a plurality of sound absorbing panels (9) are fixedly installed on the outer wall of the transmission box (3).

2. The guide rail noise reduction rolling shutter door according to claim 1, characterized in that: The pawl (6), the conductive slip ring (7) and the motor (8) are all fixedly mounted on the transmission box (3).

3. The guide rail noise reduction rolling shutter door according to claim 2, characterized in that: The emergency stop assembly (5) comprises an assembly base (501), a first groove (502) is provided on the assembly base (501), and an electromagnet (503) is fixedly installed in the first groove (502).

4. The guide rail noise reduction rolling shutter door according to claim 3, characterized in that: The inner wall of the first groove (502) is provided with a plurality of through grooves (504), ratchet teeth (505) are provided in the through grooves (504), and the inner walls on both sides of the through groove (504) are provided with second grooves (506).

5. The guide rail noise reduction rolling shutter door according to claim 4, characterized in that: The electromagnet (503) is electrically connected to the rotating power supply part of the conductive slip ring (7).

6. The guide rail noise reduction rolling shutter door according to claim 5, characterized in that: The ratchet (505) comprises a ratchet body (50501), and slide plates (50502) are fixedly mounted on the outer walls of both sides of the ratchet body (50501).

7. The guide rail noise reduction rolling shutter door according to claim 6, characterized in that: A spring (50503) is fixedly provided on one side of the slide plate (50502) close to the electromagnet (503).

8. The guide rail noise reduction rolling shutter door according to claim 7, characterized in that: The ratchet body (50501) slides in the through groove (504).

9. The guide rail noise reduction rolling shutter door according to claim 8, characterized in that: The slide plate (50502) slides in the second groove (506).

10. The guide rail noise reduction rolling shutter door according to claim 9, characterized in that: The spring (50503) is fixedly mounted in the second groove (506).

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