A state control device and control method of an externally-hung chain type electrically-operated shutter

Abstract

The application discloses a state control device and control method of an externally-hung chain type electrically-operated rolling shutter door, relates to the field of state control of electrically-operated rolling shutter doors, and discloses a maintenance supporting mechanism which comprises an electric rotating rod, a moving L-shaped frame, a rotating sliding rod, a driving motor, a sliding limiting groove, a bottom supporting plate and a trapezoidal rubber frame. The electric rotating rod is rotationally connected to the inner wall of an intelligent control box. The moving L-shaped frame is movably connected to the outer circumferential surface of the electric rotating rod. The inner circumferential wall of the moving L-shaped frame is provided with a movable key which is located in the spiral groove of the outer circumferential surface of the electric rotating rod. The rotating sliding rod is rotationally connected to the inner wall of the moving L-shaped frame. The driving motor is fixedly connected to the top of the moving L-shaped frame. The trapezoidal rubber frame shares part of the weight of the curtain door, thereby avoiding the situation that the gravity of the curtain door is too large during rolling, the pressure is applied to the internal driving motor and other components for a long time, the internal components are abraded, and the service life of the internal components is reduced.

Description

Technical Field

[0001] This invention belongs to the field of state control of electric rolling shutters, specifically relating to a state control device and control method for an external chain-type electric rolling shutter. Background Technology

[0002] External chain-type roller shutter motors are widely used in shops, warehouses, garages, industrial plants, and logistics channels. Traditional solutions typically use single-phase 220V or three-phase 380V AC asynchronous motors, which drive the curtain door to rise and fall through a gear reducer, chain, and sprocket. The travel position is set by mechanical limit switches, and safety protection often uses external devices such as infrared beams, airbags, or obstruction switches.

[0003] Patent CN105386709A discloses a roller shutter door with a pull-type component, including a door leaf and a door frame. The door frame includes a top frame and a side frame. A door lock is provided at the bottom of the door leaf, and the door lock has an oil injection hole for adding lubricating oil. A box body protruding inward is also provided at the bottom of the door leaf, and a movable baffle is provided at the bottom of the box body. A chain is provided at the bottom of one side frame of the door frame, extending to the baffle of the box body and connected to the outer surface of the baffle. The box body is opened by pulling the baffle through the chain. The inside of the box body is provided with a pull-type component for pulling down the door leaf. The beneficial effects of this invention are: the roller shutter door is provided with a pull-type component, which makes it easy to pull down the roller shutter door without the need for additional tools, making it convenient and practical. It also has an oil injection hole for adding lubricating oil to the door lock, preventing the door lock from rusting and extending its service life.

[0004] The above-mentioned device also has the following problems: Although the device solves the problems mentioned above, some roller shutter door components may be worn and damaged when the roller shutter door needs to stop urgently. In the existing technology, soft materials are generally used to limit and slow down the roller shutter door. At this time, when the roller shutter door is stopped at the top for a long time, the mechanical components at the top will be damaged due to the weight of the roller shutter door itself. Summary of the Invention

[0005] The purpose of this invention is to provide a status control device and control method for an external chain-type electric roller shutter door, so as to solve the problem that when the roller shutter door is stopped at the top for a long time, the mechanical parts at the top will be damaged due to the weight of the roller shutter door itself.

[0006] To achieve the above objectives, the present invention provides a status control device for an external chain-type electric roller shutter door, including an intelligent control box. The bottom of the intelligent control box is provided with a limiting slide groove, the side wall of the intelligent control box is provided with a take-up roller, the outer circumferential surface of the take-up roller is provided with a curtain door, the side wall of the intelligent control box is provided with a maintenance support mechanism, the side wall of the intelligent control box is provided with a winding auxiliary mechanism, and the outer wall of the intelligent control box is provided with a detection and maintenance mechanism. The maintenance support mechanism includes an electric rotary rod, a movable L-shaped frame, a rotating slide rod, a drive motor, a sliding groove, a bottom support plate, and a trapezoidal rubber frame. The electric rotary rod is rotatably connected to the inner wall of the intelligent control box. The movable L-shaped frame is movably connected to the outer circumferential surface of the electric rotary rod. A movable key is provided on the inner circumferential wall of the movable L-shaped frame, and the movable key is located in the spiral groove on the outer circumferential surface of the electric rotary rod. The rotating slide rod is rotatably connected to the inner wall of the movable L-shaped frame. The drive motor is fixedly connected to the top of the movable L-shaped frame. The rotating slide rod and the drive motor are connected by a bevel gear set. The sliding groove is opened on the outer wall of the intelligent control box. The rotating slide rod is slidably connected to the inner wall of the sliding groove. The bottom support plate is fixedly connected to the outer wall of the intelligent control box. The trapezoidal rubber frame is fixedly connected to the top of the bottom support plate by an elastic telescopic rod. The curtain door is located on the movement trajectory of the trapezoidal rubber frame.

[0007] According to another advantageous design of the invention, the maintenance support mechanism further includes a movable frame, a drive cylinder, and a horizontal top retraction plate. The movable frame is fixedly connected to the bottom of the curtain door, the drive cylinder is fixedly connected to the outer wall of the limiting slide groove, and the horizontal top retraction plate is fixedly connected to the output end of the drive cylinder.

[0008] According to another advantageous design of the present invention, the maintenance support mechanism further includes a movable column, a limiting ring, and a rubber strip. The movable column is fixedly connected to the inner wall of the horizontal top shrink plate, and the movable column is slidably connected to the inner wall of the limiting groove. The limiting ring is slidably connected to the inner wall of the limiting groove and is fixedly connected to the movable column. The rubber strip is fixedly connected to the outer wall of the limiting ring and is located on the movement trajectory of the movable frame. The trapezoidal rubber frame shares part of the curtain's weight, thus preventing excessive weight from putting long-term pressure on internal drive motors and other components during curtain retraction, which could lead to wear and reduce the lifespan of internal components.

[0009] According to another advantageous design of the present invention, the winding auxiliary mechanism includes a driving vertical moving bar, a spiral rod, a horizontal moving bar, a vertical fixing rod, and an arc-shaped maintaining plate. The driving vertical moving bar is fixedly connected to the outer wall of the trapezoidal rubber frame. The spiral rod is rotatably connected to the outer wall of the bottom support plate and is movably connected to the outer circumferential surface of the spiral rod. The inner circumferential wall of the horizontal moving bar is provided with a movable key, and the movable key is located in the spiral groove on the outer circumferential surface of the spiral rod. The vertical fixing rod is fixedly connected to the top of the horizontal moving bar, and the arc-shaped maintaining plate is fixedly connected to the top of the vertical fixing rod. The spiral rod and the driving vertical moving bar are connected by a gear and rack transmission.

[0010] According to another advantageous design of the invention, the winding auxiliary mechanism further includes a limiting crossbar and a detector. The limiting crossbar is fixedly connected to the outer wall of the bottom support plate at the other end. The moving crossbar is slidably connected to the limiting crossbar. The detector is disposed on the bottom inner wall of the moving frame.

[0011] According to another advantageous design of the present invention, the winding auxiliary mechanism further includes a movable frame and a connecting rod, the connecting rod being slidably connected to the inner wall of the movable frame bar by a spring, the movable frame being fixedly connected to the bottom of the connecting rod, and the movable frame bar being electrically connected to the drive cylinder; When the mobile frame reaches its lowest point, the connecting rod of the mobile frame will come into contact with the ground, thus cushioning the descent of the mobile frame and preventing it from colliding with the ground at too high a speed and causing damage.

[0012] According to another advantageous design of the present invention, the detection and maintenance mechanism includes an indicator needle and an arc-shaped numerical coil, the indicator needle being fixedly connected to the outer wall of the electric rotary rod, and the arc-shaped numerical coil being fixedly connected to the outer wall of the intelligent control box.

[0013] According to another advantageous design of the present invention, the inspection and maintenance mechanism further includes a sliding column and a fixed square plate, the sliding column being fixedly connected to the bottom of the trapezoidal rubber frame, the fixed square plate being fixedly connected to the outer circumferential surface of the sliding column, and the sliding column being slidably connected to the bottom support plate.

[0014] According to another advantageous design of the present invention, the inspection and maintenance mechanism further includes a guide bar and a numerical block, the guide bar being fixedly connected to the outer wall of the fixed square plate, and the numerical block being fixedly connected to the bottom of the bottom support plate; As the fixed square moves, it causes the indicator bar to move downwards, and then the indicator bar will point to the value on the value block. When the value differs from the value at the time of the last reset, it indicates that the trapezoidal rubber frame does not provide sufficient support for the curtain door.

[0015] A control method for a status control device of an externally mounted chain-type electric roller shutter door includes the following steps: S1: After the system is powered on, it completes self-tests of the power supply, IPM power module, motor, encoder, AI camera and safety input, and reads preset parameters and historical fault records; S2: When entering the installation, debugging, or travel learning mode, control the curtain door to run to the upper limit, lower limit, or specified opening, record encoder position data, and generate electronic limit parameters; S3: After receiving instructions to open, close, stop, or specify the opening degree, generate a speed curve based on the current curtain door position, target position, curtain door load, and historical operating parameters. S4: During operation, continuously collect encoder position, motor current, bus voltage, temperature and AI vision recognition results, and execute position closed-loop, speed closed-loop and load protection control; S5: When the curtain door approaches the end point or the specified opening degree, reduce the output frequency and perform a soft stop; after reaching the position, control the braking unit to operate to reduce impact and rebound; S6: When the AI ​​identifies an obstacle, or detects overcurrent, overheating, encoder malfunction, braking malfunction, undervoltage, or communication malfunction, the system will perform deceleration, shutdown, reversal, alarm, and event logging according to the fault level.

[0016] The beneficial effects of this invention are: 1. In this invention, with the cooperation of the limiting ring, the rotating slide bar, and the rubber strip, the limiting ring moves and drives the rubber strip to contact the moving frame bar. The rubber strip will squeeze the moving frame bar against the inner wall of the limiting slide groove, so that it will no longer fall. Since there are multiple rubber strips and they have a certain toughness, compared with traditional mechanical emergency stop devices, the damage to the moving frame bar is smaller and the noise generated during emergency stop is relatively reduced, which is less likely to cause panic among pedestrians. As the rotating slide bar moves, it drives the take-up roller to move as well. The take-up roller moves the curtain door towards the top of the trapezoidal rubber frame. The curtain door then stops at the top of the trapezoidal rubber frame in the rolled-up state. In this step, the trapezoidal rubber frame shares part of the weight of the curtain door, thereby preventing the curtain door from being under excessive weight during rolling and putting long-term pressure on the internal drive motor and other components, which would cause wear and reduce the service life of the internal components.

[0017] 2. With the cooperation of the curtain door, detector, and moving frame, when the curtain door bulges on the circumferential surface of the take-up roller during the winding process, it will cause improper curtain door winding and damage to the curtain door folds. At this time, the vertical rod will contact the outer circumferential surface of the curtain door and squeeze it. Combined with the rigidity of the curtain door itself, the insufficiently wound curtain door will be reset, avoiding the curtain door from being deformed and damaged due to the incorrect winding form during the winding process for a long time. The detector can better observe the situation at the bottom of the curtain door, enabling it to release electrical signals to the drive cylinder more quickly. When the moving frame bar descends to the bottom, the moving frame pressing connecting rod will contact the ground first, thus buffering the descent of the moving frame bar and preventing it from colliding with the ground and causing damage due to excessive descent speed.

[0018] 3. With the cooperation of the fixed square plate, the pointing strip, and the trapezoidal rubber frame, the fixed square plate moves downward during the movement of the fixed square plate. The pointing strip will then point to the value on the value block. When the value differs from the value at the time of the last reset, it indicates that the trapezoidal rubber frame is not strong enough to support the curtain door. In this case, the elastic telescopic rod at the bottom of the trapezoidal rubber frame needs to be replaced manually. This step can be done by visually inspecting the approximate operation of the device, which facilitates the risk assessment.

[0019] 4. It can drive a three-phase roller shutter motor under single-phase V mains power conditions, expanding the application range of three-phase motors in commercial door control scenarios. Electronic limit and travel learning are realized through magnetic encoders, reducing the workload of mechanical limit debugging and improving installation efficiency. Soft start, fast operation, end deceleration and soft stop reduce mechanical shock, noise and component wear. AI vision and motor status fusion judgment improve the reliability of anti-pinch, anti-clamping and abnormal shutdown. OLED, voice and mobile terminal tools improve the efficiency of installation, debugging, status feedback and after-sales maintenance. Fault recording and remote diagnosis reduce unnecessary on-site visits and reduce long-term operation and maintenance costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the maintenance support mechanism of the present invention; Figure 3 This is the invention Figure 2 Enlarged view of a portion of the structure at point A; Figure 4 This is a schematic diagram of the movable column structure of the present invention; Figure 5 This is a schematic diagram of the vertical support rod structure of the present invention; Figure 6 This is the invention Figure 5 Enlarged schematic diagram of the structure at point B in the middle; Figure 7 This is a schematic diagram of the connecting rod structure of the present invention; Figure 8 This is the invention Figure 7 Enlarged schematic diagram of the structure at point D; Figure 9 This is the invention Figure 7 A magnified view of the structure at point C.

[0021] The markings in the diagram are as follows: 1. Intelligent control box; 2. Limiting slide rail; 3. Retracting roller; 4. Curtain door; 5. Maintenance support mechanism; 501. Electric rotary rod; 502. Moving L-frame; 503. Rotating slide rail; 504. Drive motor; 505. Slide limiting groove; 506. Bottom support plate; 507. Trapezoidal rubber frame; 508. Moving frame bar; 509. Drive cylinder; 510. Horizontal top shrink plate; 511. Moving column; 512. Limiting ring; 513. Rubber parts 6. Winding Auxiliary Mechanism; 601. Driving Vertical Moving Bar; 602. Spiral Rod; 603. Horizontal Moving Bar; 604. Vertical Fixing Rod; 605. Arc-shaped Maintaining Plate; 606. Horizontal Limiting Rod; 607. Detector; 608. Moving Frame; 609. Connecting Rod; 7. Inspection and Maintenance Mechanism; 701. Indicator Needle; 702. Arc-shaped Numerical Ring; 703. Sliding Value Column; 704. Fixed Square Plate; 705. Pointing Bar; 706. Numerical Block. Detailed Implementation

[0022] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0023] like Figures 1-9 As shown, one embodiment of the present invention is a status control device for an external chain-type electric roller shutter door, including an intelligent control box 1, a limiting slide groove 2 provided at the bottom of the intelligent control box 1, a take-up roller 3 provided on the side wall of the intelligent control box 1, a curtain door 4 provided on the outer circumference of the take-up roller 3, a maintenance support mechanism 5 provided on the side wall of the intelligent control box 1, a winding auxiliary mechanism 6 provided on the side wall of the intelligent control box 1, and a detection and maintenance mechanism 7 provided on the outer wall of the intelligent control box 1. The maintenance support mechanism 5 includes an electric rotary rod 501, a movable L-shaped frame 502, a rotating slide rod 503, a drive motor 504, a sliding groove 505, a bottom support plate 506, and a trapezoidal rubber frame 507. The electric rotary rod 501 is rotatably connected to the inner wall of the intelligent control box 1. The movable L-shaped frame 502 is movably connected to the outer circumferential surface of the electric rotary rod 501. A movable key is provided on the inner circumferential wall of the movable L-shaped frame 502, and the movable key is located in the spiral groove on the outer circumferential surface of the electric rotary rod 501. The rotating slide rod 503 is rotatably connected to the inner wall of the movable L-shaped frame 502. The drive motor 504 is fixedly connected to the top of the movable L-shaped frame 502. The rotating slide rod 503 and... The drive motors 504 are connected by a bevel gear set. The sliding groove 505 is opened on the outer wall of the intelligent control box 1. The rotating slide rod 503 is slidably connected to the inner wall of the sliding groove 505. The bottom support plate 506 is fixedly connected to the outer wall of the intelligent control box 1. The trapezoidal rubber frame 507 is fixedly connected to the top of the bottom support plate 506 by an elastic telescopic rod. The curtain door 4 is located on the movement trajectory of the trapezoidal rubber frame 507. The drive motors 504 and the rotating slide rod 503 move together with the moving L frame 502. Therefore, the bevel gear set will always be in a meshing state to ensure that the drive motors 504 can always drive the rotating slide rod 503 to rotate through the bevel gear set.

[0024] The maintenance support mechanism 5 also includes a movable frame 508, a drive cylinder 509, and a horizontal top shrink plate 510. The movable frame 508 is fixedly connected to the bottom of the curtain door 4, the drive cylinder 509 is fixedly connected to the outer wall of the limiting slide 2, and the horizontal top shrink plate 510 is fixedly connected to the output end of the drive cylinder 509.

[0025] The maintenance support mechanism 5 also includes a movable column 511, a limiting ring 512, and a rubber strip 513. The movable column 511 is fixedly connected to the inner wall of the horizontal top shrink plate 510. The movable column 511 is slidably connected to the inner wall of the limiting slide groove 2. The limiting ring 512 is slidably connected to the inner wall of the limiting slide groove 2. The limiting ring 512 is fixedly connected to the movable column 511. The rubber strip 513 is fixedly connected to the outer wall of the limiting ring 512. The rubber strip 513 is located on the movement trajectory of the movable frame bar 508. The trapezoidal rubber frame 507 shares part of the weight of the curtain door 4, thereby preventing the curtain door 4 from being subjected to excessive gravity during rolling, which would put pressure on the internal drive motor 504 and other components for a long time, causing them to wear and reducing the service life of the internal components.

[0026] The winding auxiliary mechanism 6 includes a driving vertical bar 601, a spiral rod 602, a horizontal moving bar 603, a vertical fixing rod 604, and an arc-shaped maintaining plate 605. The driving vertical bar 601 is fixedly connected to the outer wall of the trapezoidal rubber frame 507. The spiral rod 602 is rotatably connected to the outer wall of the bottom support plate 506. The horizontal moving bar 603 is movably connected to the outer circumferential surface of the spiral rod 602. The inner circumferential wall of the horizontal moving bar 603 is provided with a movable key, and the movable key is located in the spiral groove on the outer circumferential surface of the spiral rod 602. The vertical fixing rod 604 is fixedly connected to the top of 603. The arc-shaped maintaining plate 605 is fixedly connected to the top of the vertical fixing rod 604. The spiral rod 602 and the driving vertical bar 601 are connected by a gear and rack transmission.

[0027] The winding auxiliary mechanism 6 also includes a limiting crossbar 606 and a detector 607. The limiting crossbar 606 is fixedly connected to the outer wall of the bottom support plate 506 at the other end. The horizontal moving bar 603 is slidably connected to the limiting crossbar 606. The detector 607 is set on the bottom inner wall of the moving frame bar 508. When the curtain door 4 leaves the trapezoidal rubber frame 507, the trapezoidal rubber frame 507 is reset under the action of the elastic telescopic rod, which drives the driving vertical moving bar 601 to move upward, causing the spiral rod 602 to reverse, and the arc-shaped maintaining plate 605 moves away from the curtain door 4.

[0028] The winding auxiliary mechanism 6 also includes a movable frame 608 and a connecting rod 609. The connecting rod 609 is slidably connected to the inner wall of the movable frame 508 by a spring. The movable frame 608 is fixedly connected to the bottom of the connecting rod 609. The movable frame 508 and the drive cylinder 509 are connected by an electric wire. The vertical rod 604 will contact and press against the outer circumferential surface of the curtain door 4, and together with the rigidity of the curtain door 4 itself, it will restore the curtain door 4 that is not fully wound, and prevent the curtain door 4 from being deformed and damaged due to the incorrect winding form during the winding process for a long time.

[0029] Working Principle: During winding, the electric rotary rod 501 is activated, driving the moving L-frame 502 through the spiral groove on the circumferential surface. During this movement, the moving L-frame 502 drives the rotating slide rod 503 to move within the limit of the sliding groove 505. The rotating slide rod 503 then drives the take-up roller 3, which in turn moves the curtain door 4 towards the top of the trapezoidal rubber frame 507. The curtain door 4 then remains at the top of the trapezoidal rubber frame 507 during winding. This step allows the trapezoidal rubber frame 507 to share some of the weight of the curtain door 4, preventing excessive weight from putting long-term pressure on internal components such as the drive motor 504 during winding, thus avoiding wear and tear and reducing the service life of internal parts. When the device unfolds downwards, the moving frame bar 50... 8. Under the limit of the limiting slide 2, it moves downward. When there is a foreign object under the moving frame bar 508, the drive cylinder 509 is started to drive the horizontal top shrink plate 510 to move backward. The horizontal top shrink plate 510 moves backward and drives the moving column 511 to move backward. Then, under the limit of the limiting slide 2, the moving column 511 drives the limiting ring 512 to move in the direction of the moving frame bar 508. During the movement of the limiting ring 512, the rubber strip 513 comes into contact with the moving frame bar 508. The rubber strip 513 will squeeze the moving frame bar 508 against the inner wall of the limiting slide 2, so that it will no longer fall. Since there are multiple rubber strips 513 and they have a certain toughness, compared with traditional mechanical emergency stop devices, the damage to the moving frame bar 508 is smaller and the noise generated during emergency stop is relatively reduced, which is less likely to cause panic among pedestrians.

[0030] When the curtain door 4 lands on top of the trapezoidal rubber frame 507, the trapezoidal rubber frame 507, under the pressure of gravity, will drive the vertical moving bar 601 to move downward under the limit of the bottom elastic telescopic rod. The downward movement of the vertical moving bar 601 drives the spiral rod 602 to rotate through the gear rack. During the rotation, the spiral rod 602 drives the 603 to move towards the curtain door 4 under the limit of the horizontal bar 606 through the spiral groove on the circumferential surface. The movement of 603 drives the vertical fixing rod 604 to move closer to the curtain door 4. At the same time, the vertical fixing rod 604 moves closer to the curtain door 4, causing the arc-shaped maintaining plate 605 to contact the circumferential surface of the curtain door 4. When the curtain door 4 bulges on the circumferential surface of the take-up roller 3 during the winding process, it will cause improper winding of the curtain door 4, resulting in wrinkles and damage to the curtain door 4. At this time, the vertical fixing rod 604 will contact the outer circumferential surface of the curtain door 4. The contact pressure, combined with the rigidity of the curtain door 4 itself, resets the insufficiently wound curtain door 4, preventing the curtain door 4 from deforming and being damaged due to prolonged incorrect winding. When the curtain door 4 moves downward, the moving frame 508 also moves downward, which drives the detector 607 downward. Since the detector 607 is located at the bottom of the moving frame 508, it can better observe the situation at the bottom of the curtain door 4, enabling it to release an electrical signal to the drive cylinder 509 more quickly. When the moving frame 508 reaches the bottom, the moving frame 608 presses the connecting rod 609 to contact the ground first, thus buffering the descent of the moving frame 508 and preventing it from colliding with the ground at too high a speed and causing damage.

[0031] like Figures 1-9 As shown, based on the above embodiment, the testing and maintenance mechanism 7 includes an indicator needle 701 and an arc-shaped numerical coil 702. The indicator needle 701 is fixedly connected to the outer wall of the electric rotary rod 501, and the arc-shaped numerical coil 702 is fixedly connected to the outer wall of the intelligent control box 1.

[0032] The inspection and maintenance mechanism 7 also includes a sliding column 703 and a fixed square plate 704. The sliding column 703 is fixedly connected to the bottom of the trapezoidal rubber frame 507, and the fixed square plate 704 is fixedly connected to the outer circumferential surface of the sliding column 703. The sliding column 703 is slidably connected to the bottom support plate 506.

[0033] The testing and maintenance mechanism 7 also includes a guide bar 705 and a value block 706. The guide bar 705 is fixedly connected to the outer wall of the fixed square plate 704, and the value block 706 is fixedly connected to the bottom of the bottom support plate 506. During the movement of the fixed square plate 704, it drives the pointer bar 705 to move downwards. Then the pointer bar 705 will point to the value on the value block 706. When the value differs from the value at the time of the last reset, it indicates that the trapezoidal rubber frame 507 does not provide sufficient support for the curtain door 4.

[0034] A control method for a status control device of an externally mounted chain-type electric roller shutter door includes the following steps: S1: After the system is powered on, it completes self-tests of the power supply, IPM power module, motor, encoder, AI camera and safety input, and reads preset parameters and historical fault records; S2: When entering the installation and debugging or travel learning mode, control the curtain door 4 to run to the upper limit, lower limit or specified opening, record the encoder position data and generate electronic limit parameters; S3: After receiving instructions to open, close, stop, or specify the opening degree, generate a speed curve based on the current position of curtain door 4, the target position, the load of curtain door 4, and historical operating parameters; S4: During operation, continuously collect encoder position, motor current, bus voltage, temperature and AI vision recognition results, and execute position closed-loop, speed closed-loop and load protection control; S5: When the curtain door 4 approaches the end point or the specified opening degree, reduce the output frequency and perform a soft stop; after reaching the position, control the braking unit to operate to reduce impact and rebound; S6: When the AI ​​identifies an obstacle, or detects overcurrent, overheating, encoder malfunction, braking malfunction, undervoltage, or communication malfunction, the system will perform deceleration, shutdown, reversal, alarm, and event logging according to the fault level.

[0035] Working principle: During operation, the electric rotary rod 501 rotates, causing the indicator needle 701 on the circumferential surface to rotate. As the indicator needle 701 rotates, it points to the value on the outer wall of the arc-shaped numerical ring 702. When the value is within the normal range, it indicates that the mechanical parts inside the intelligent control box 1 have been properly reset. Otherwise, maintenance personnel need to be notified for inspection. When the trapezoidal rubber frame 507 is no longer squeezed by the curtain door 4, the sliding column 703 resets, causing the fixed square plate 704 to move. During the movement of the fixed square plate 704, the indicator bar 705 moves downward, and then the indicator bar 705 points to the value on the numerical block 706. When the value differs from the value at the time of the last reset, it indicates that the trapezoidal rubber frame 507 does not provide sufficient support for the curtain door 4. In this case, the elastic telescopic rod at the bottom of the trapezoidal rubber frame 507 needs to be replaced manually. This step allows for a visual inspection of the approximate operation of the device, facilitating risk assessment.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A status control device for an externally mounted chain-driven electric roller shutter door, characterized in that, The system includes an intelligent control box (1), a limiting groove (2) at the bottom of the intelligent control box (1), a take-up roller (3) on the side wall of the intelligent control box (1), a curtain door (4) on the outer circumference of the take-up roller (3), a maintenance support mechanism (5) on the side wall of the intelligent control box (1), a winding auxiliary mechanism (6) on the side wall of the intelligent control box (1), and a detection and maintenance mechanism (7) on the outer wall of the intelligent control box (1). The maintenance support mechanism (5) includes an electric rotary rod (501), a movable L-shaped frame (502), a rotating slide rod (503), a drive motor (504), a sliding groove (505), a bottom support plate (506), and a trapezoidal rubber frame (507). The electric rotary rod (501) is rotatably connected to the inner wall of the intelligent control box (1). The movable L-shaped frame (502) is movably connected to the outer circumferential surface of the electric rotary rod (501). A movable key is provided on the inner circumferential wall of the movable L-shaped frame (502), and the movable key is located in the spiral groove on the outer circumferential surface of the electric rotary rod (501). The rotating slide rod (503) is rotatably connected to the inner wall of the movable L-shaped frame (502). The drive motor... (504) is fixedly connected to the top of the movable L-frame (502). The rotating slide rod (503) and the drive motor (504) are connected by a bevel gear set. The sliding groove (505) is opened on the outer wall of the intelligent control box (1). The rotating slide rod (503) is slidably connected to the inner wall of the sliding groove (505). The bottom support plate (506) is fixedly connected to the outer wall of the intelligent control box (1). The trapezoidal rubber frame (507) is fixedly connected to the top of the bottom support plate (506) by an elastic telescopic rod. The curtain door (4) is located on the movement trajectory of the trapezoidal rubber frame (507). The rotating slide rod (503) and the take-up roller (3) are coaxially fixedly connected.

2. The status control device for an external chain-type electric roller shutter door according to claim 1, characterized in that, The maintenance support mechanism (5) also includes a movable frame (508), a drive cylinder (509), and a horizontal top retractor (510). The movable frame (508) is fixedly connected to the bottom of the curtain door (4). The drive cylinder (509) is fixedly connected to the outer wall of the limiting slide (2). The horizontal top retractor (510) is fixedly connected to the output end of the drive cylinder (509). The intelligent control box (1) is equipped with a power supply, an IPM power module, a motor, an encoder, an AI camera, a safety input module, and a detection module.

3. The status control device for an external chain-type electric roller shutter door according to claim 2, characterized in that, The maintenance support mechanism (5) further includes a movable column (511), a limiting ring (512), and a rubber strip (513). The movable column (511) is fixedly connected to the inner wall of the horizontal top shrink plate (510). The movable column (511) is slidably connected to the inner wall of the limiting groove (2). The limiting ring (512) is slidably connected to the inner wall of the limiting groove (2). The limiting ring (512) is fixedly connected to the movable column (511). The rubber strip (513) is fixedly connected to the outer wall of the limiting ring (512). The rubber strip (513) is located on the movement trajectory of the movable frame (508).

4. The status control device for an external chain-type electric roller shutter door according to claim 3, characterized in that, The winding auxiliary mechanism (6) includes a driving vertical moving bar (601), a spiral rod (602), a horizontal moving bar (603), a vertical fixing rod (604), and an arc-shaped maintaining plate (605). The driving vertical moving bar (601) is fixedly connected to the outer wall of the trapezoidal rubber frame (507). The spiral rod (602) is rotatably connected to the outer wall of the bottom support plate (506). The (603) is movably connected to the outer circumferential surface of the spiral rod (602). The inner circumferential wall of the horizontal moving bar (603) is provided with a movable key, and the movable key is located in the spiral groove on the outer circumferential surface of the spiral rod (602). The vertical fixing rod (604) is fixedly connected to the top of the horizontal moving bar (603). The arc-shaped maintaining plate (605) is fixedly connected to the top of the vertical fixing rod (604). The spiral rod (602) and the driving vertical moving bar (601) are connected by a gear and rack transmission.

5. The status control device for an external chain-type electric roller shutter door according to claim 4, characterized in that, The winding auxiliary mechanism (6) also includes a limiting crossbar (606) and a detector (607). The limiting crossbar (606) is fixedly connected to the outer wall of the bottom support plate (506) at the other end. The horizontal moving strip (603) is slidably connected to the limiting crossbar (606). The detector (607) is set on the bottom inner wall of the moving frame (508).

6. The status control device for an external chain-type electric roller shutter door according to claim 5, characterized in that, The winding auxiliary mechanism (6) also includes a movable frame (608) and a connecting rod (609). The connecting rod (609) is slidably connected to the inner wall of the movable frame (508) by a spring. The movable frame (608) is fixedly connected to the bottom of the connecting rod (609). The movable frame (508) and the driving cylinder (509) are connected by telecommunications.

7. The status control device for an external chain-type electric roller shutter door according to claim 6, characterized in that, The testing and maintenance mechanism (7) includes an indicator needle (701) and an arc-shaped numerical ring (702). The indicator needle (701) is fixedly connected to the outer wall of the electric rotary rod (501), and the arc-shaped numerical ring (702) is fixedly connected to the outer wall of the intelligent control box (1).

8. The status control device for an external chain-type electric roller shutter door according to claim 7, characterized in that, The testing and maintenance mechanism (7) also includes a sliding column (703) and a fixed square plate (704). The sliding column (703) is fixedly connected to the bottom of the trapezoidal rubber frame (507), and the fixed square plate (704) is fixedly connected to the outer circumferential surface of the sliding column (703). The sliding column (703) is slidably connected to the bottom support plate (506).

9. The status control device for an external chain-type electric roller shutter door according to claim 8, characterized in that, The testing and maintenance mechanism (7) also includes a guide bar (705) and a numerical block (706). The guide bar (705) is fixedly connected to the outer wall of the fixed square (704), and the numerical block (706) is fixedly connected to the bottom of the bottom support plate (506).

10. A control method for a state control device of an external chain-type electric roller shutter door, employing the state control device for an external chain-type electric roller shutter door as described in claim 9, characterized in that... Includes the following steps: S1: After the system is powered on, it completes self-tests of the power supply, IPM power module, motor, encoder, AI camera and safety input, and reads preset parameters and historical fault records; S2: When entering the installation and debugging or travel learning mode, control the curtain door (4) to run to the upper limit, lower limit or specified opening, record the encoder position data and generate electronic limit parameters; S3: After receiving the instructions to open, close, stop or specify the opening degree, generate a speed curve based on the current position of the curtain door (4), the target position, the load of the curtain door (4) and historical operating parameters; S4: During operation, continuously collect encoder position, motor current, bus voltage, temperature and AI vision recognition results, and execute position closed-loop, speed closed-loop and load protection control; S5: When the curtain door (4) approaches the end point or the specified opening degree, reduce the output frequency and perform a soft stop; after reaching the position, control the braking unit to operate to reduce impact and rebound; S6: When the AI ​​identifies an obstacle, or detects overcurrent, overheating, encoder malfunction, braking malfunction, undervoltage, or communication malfunction, the system will perform deceleration, shutdown, reversal, alarm, and event logging according to the fault level.

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