Electric roller shutter door with emergency unlocking function

Abstract

This utility model belongs to the technical field of electric roller shutter doors, and provides an electric roller shutter door with an emergency unlocking function. It includes a top frame assembly, a roller shutter assembly, a longitudinal guide rail assembly, a torsion spring traction mechanism assembly, and a drive mechanism assembly. The roller shutter assembly, longitudinal guide rail assembly, torsion spring traction mechanism assembly, and drive mechanism assembly are installed on the upper part of the top frame assembly. The drive mechanism assembly is connected to the roller shutter assembly and drives the roller shutter assembly to roll up on the longitudinal guide rail assembly. An emergency unlocking component is provided on the drive mechanism assembly. When the electric roller shutter door malfunctions, the emergency unlocking component unlocks the door, allowing it to freely roll up and down. This patent features a simple structure, high integration, and small space occupation; it uses only one motor to achieve the above functions, greatly reducing product costs; a small torque single motor can realize the opening and closing of the roller shutter door; it focuses on user experience, considering and solving problems for customers from the smallest details.

Description

Technical Field

[0001] This utility model belongs to the technical field of electric roller shutter doors, specifically relating to an electric roller shutter door with an emergency unlocking function. Background Technology

[0002] With the development of automotive technology and people's increasing emphasis on privacy and property security, the installation rate of electric roller shutters is rising, gradually becoming an indispensable product for pickup trucks and vans. However, the opening and closing of electric roller shutters is affected by the electric drive system and motor. When the electric drive system or motor malfunctions, the electric roller shutter can easily get stuck at a certain position in its travel, affecting the loading and unloading of items in the cargo box or compartment, significantly diminishing the customer experience. Therefore, it is necessary to address the following issues with existing electric roller shutter products: First, when the electric drive system or motor malfunctions, an emergency unlocking function should be available to unlock the motor and roller shutter to avoid affecting its use; second, in addition to the above emergency unlocking function... In addition to functionality, electric roller shutters also need to integrate electric opening and closing drive, anti-pinch and anti-collision, arbitrary position locking, and high-precision position detection. Thirdly, the required motor torque is too high, and during operation, the torque required by the motor is uneven across different positions due to gravity and friction, significantly impacting motor lifespan and reducing it considerably. Fourthly, electric roller shutters need to integrate a lighting system to facilitate customers' nighttime access to and from items. Existing electric roller shutters mainly suffer from the following technical deficiencies and functional gaps: Firstly, they lack emergency unlocking, anti-pinch and anti-collision, high-precision position detection, and arbitrary position locking functions; secondly, they have poor integration, occupy a large space, have a high failure rate, and are costly; thirdly, they require multiple motors or high-torque motors for drive; and fourthly, they offer a poor user experience. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an electric roller shutter door with emergency unlocking function, which realizes the opening and closing drive of the electric roller shutter door, anti-pinch and anti-collision, and high integration, in view of the current situation of the existing technology.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an electric roller shutter door with an emergency unlocking function, characterized in that it includes a top frame assembly, a roller shutter assembly, a longitudinal guide rail assembly, a torsion spring traction mechanism assembly, and a drive mechanism assembly. The roller shutter assembly, the longitudinal guide rail assembly, the torsion spring traction mechanism assembly, and the drive mechanism assembly are installed on the upper part of the top frame assembly, and the longitudinal guide rail assembly is installed on the front part of the top frame assembly. The torsion spring traction mechanism assembly is used for the opening and closing of the roller shutter. The drive mechanism assembly is connected to the roller shutter assembly and drives the roller shutter assembly to roll up on the longitudinal guide rail assembly. An emergency unlocking component is provided on the drive mechanism assembly. When the electric roller shutter door malfunctions, it can be unlocked through the emergency unlocking component, allowing the electric roller shutter door to be in a free state for opening and closing.

[0005] In the aforementioned electric roller shutter door with emergency unlocking function, the drive mechanism assembly includes a motor, gears, a synchronous shaft, and a fixed mounting bracket. The two ends of the synchronous shaft are connected to the gears, the motor is mounted on the fixed mounting bracket, and the motor is connected to the synchronous shaft. The gears are ratchet gears.

[0006] In the aforementioned electric roller shutter door with emergency unlocking function, the motor includes a motor body, an output shaft, a spring, a coupling, bolts, and bearings. The emergency unlocking component includes a lever and a pull rope. The end of the output shaft is fixedly connected to the coupling by bolts, and the spring is secured to the output shaft. The other end of the output shaft is equipped with a bearing. The lever is fixed to the outer ring of the bearing and the motor body. One end of the lever is equipped with a pull rope, and the other end of the pull rope is hidden outside the carriage. When the pull rope is operated, the coupling can be disconnected from the synchronous shaft.

[0007] In the above-mentioned electric roller shutter door with emergency unlocking function, the motor has a self-locking mechanism and a Hall module. The self-locking mechanism realizes the locking function of the electric roller shutter door, and realizes the opening and closing drive, anti-pinch and anti-collision, and high-precision position detection of the electric roller shutter door through the Hall module and current detection and other electrical control logic systems.

[0008] In the aforementioned electric roller shutter door with emergency unlocking function, the torsion spring traction mechanism assembly consists of a torsion spring, a rope, a winding wheel, and a rotating assembly. One end of the torsion spring is fixed to the top frame assembly, and the other end is fixed to the rotating assembly. The winding wheel is fixed to the rotating assembly, and one end of the rope is fixed to the winding wheel, while the other end is fixed to the roller shutter assembly.

[0009] In the above-mentioned electric roller shutter door with emergency unlocking function, the roller shutter assembly includes a leaf assembly, a pulley assembly, and a sealing strip. The leaves are connected by a rotating shaft, the pulley assembly is fixed at both ends of the leaf, and the sealing strip is engaged with the bottom leaf.

[0010] In the above-mentioned electric roller shutter door with emergency unlocking function, the top frame assembly includes a first horizontal guide rail, a second horizontal guide rail, a beam assembly, and a mounting bracket. The first horizontal guide rail, the second horizontal guide rail, and the beam assembly are fixedly connected, and the mounting bracket is fixed on the first horizontal guide rail and the second horizontal guide rail.

[0011] In the aforementioned electric roller shutter door with emergency unlocking function, the longitudinal guide rail assembly comprises a first longitudinal guide rail, a second longitudinal guide rail, a first sealing strip, and a second sealing strip, wherein the first sealing strip and the second sealing strip are respectively snapped onto the first longitudinal guide rail and the second longitudinal guide rail.

[0012] In the aforementioned type of electric roller shutter door with emergency unlocking function, the electric roller shutter door is arranged in an L-shape.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] 1. Electric roller shutter doors with integrated emergency unlocking function: When the electric roller shutter door is working normally, the output shaft is in the fully extended state. When the electric drive system or motor fails, the output shaft is retracted by pulling the rope connected to the other end of the output shaft, and the connection with the roller shutter door drive mechanism is disconnected. At this time, the roller shutter door is in a free state to achieve the unlocking function. When the pull rope is released, the output shaft returns to the fully extended state and reconnects to the roller shutter door drive mechanism, so that the electric roller shutter door function is restored to normal.

[0015] 2. The motor integrates a self-locking mechanism and a Hall module. The self-locking mechanism enables the locking function of the electric roller shutter door, while the Hall module and current detection enable the opening and closing drive, anti-pinch and anti-collision functions, and high-precision position detection of the electric roller shutter door.

[0016] 3. The roller shutter door is equipped with a torsion spring traction mechanism, which balances the gravity and friction of the roller shutter during operation through the winding torque of the torsion spring, thus protecting the motor. The electric roller shutter door integrates a lighting system, providing convenience for customers to retrieve and place items at night.

[0017] 4. Simple structure, high integration, and small footprint; the above functions can be achieved with only one motor, greatly reducing product costs; the rolling shutter door can be raised and lowered using a single low-torque motor; user experience is emphasized, and problems are solved for customers from the smallest details. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an electric roller shutter door with an emergency unlocking function;

[0019] Figure 2 This is a schematic diagram of the axle side structure of an electric roller shutter door with an emergency unlocking function;

[0020] Figure 3 This is a structural schematic diagram of the roller blind assembly;

[0021] Figure 4 This is a structural diagram of the top frame assembly;

[0022] Figure 5 This is a structural schematic diagram of the torsion spring traction mechanism assembly;

[0023] Figure 6 This is an isometric view of the drive mechanism assembly;

[0024] Figure 7 This is a schematic diagram of the internal structure of the motor in the overall structure of this electric roller shutter door with emergency unlocking function; Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] In the diagram, the roller blind assembly is 100; the flap assembly is 101; the pulley assembly is 102; the sealing strip is 103; the top frame assembly is 200; the first horizontal guide rail is 201; the second horizontal guide rail is 202; the crossbeam assembly is 203; the mounting bracket is 204; the torsion spring traction mechanism assembly is 300; the torsion spring is 301; the rope is 302; the winding wheel is 303; the rotating assembly is 304; the drive mechanism assembly is 400; the motor is 401; the motor body is 4011; the output shaft is 4012; the spring is 4013; the coupling is 4014; the bolt is 4015; the bearing is 4016; the gear is 402; the synchronous shaft is 403; the fixed mounting bracket is 404; the longitudinal guide rail assembly is 500; the first longitudinal guide rail is 501; the second longitudinal guide rail is 502; the first sealing strip is 503; the second sealing strip is 504; the lighting system is 600; the emergency unlocking assembly is 700; the lever is 701; and the pull rope is 702.

[0027] like Figure 1 As shown, this electric roller shutter door with emergency unlocking function is arranged in an L-shape, allowing it to lie flat on the roof of the vehicle when retracted, minimizing space occupation and maximizing opening size. The entire electric roller shutter door includes a top frame assembly 200, a roller shutter assembly 100, a longitudinal guide rail assembly 500, a torsion spring traction mechanism assembly 300, and a drive mechanism assembly 400. The roller shutter assembly 100, longitudinal guide rail assembly 500, torsion spring traction mechanism assembly 300, and drive mechanism assembly 400 are installed on the upper part of the top frame assembly 200, and the longitudinal guide rail assembly 500 is installed on the front part of the top frame assembly 200. 300 is used for the raising and lowering of the roller shutter. The drive mechanism assembly 400 is connected to the roller shutter assembly 100 and drives the roller shutter assembly 100 to roll up on the longitudinal guide rail assembly 500. An emergency unlocking component 700 is provided on the drive mechanism assembly 400. When the electric roller shutter door malfunctions, it can be unlocked by the emergency unlocking component 700, allowing the electric roller shutter door to be raised and lowered in a free state. This patent integrates emergency unlocking, anti-pinch and anti-collision, high-precision position detection and arbitrary position locking functions. It is equipped with a torsion spring traction mechanism to balance the weight and friction of the roller shutter blades and protect the motor. The integrated lighting system 600 provides convenience for customers to retrieve and put away items at night.

[0028] Specifically, such as Figure 6As shown, the drive mechanism assembly 400 includes a motor 401, a gear 402, a synchronous shaft 403, and a fixed mounting bracket 404. Both ends of the synchronous shaft 403 are connected to the gear 402. The motor 401 is mounted on the fixed mounting bracket 404 and connected to the synchronous shaft 403. The gear 402 is a ratchet; the ratchet allows for more precise movement of the pulley assembly 102 and precise positioning and locking of the leaf blades, reducing impact noise.

[0029] like Figure 3 as well as Figure 4 As shown, the roller blind assembly 100 includes a leaf assembly 101, a pulley assembly 102, and a sealing strip 103. The leaves are connected by a pivot shaft. The pulley assembly 102 is fixed to both ends of the leaves. The sealing strip 103 is engaged with the bottom leaves. The top frame assembly 200 includes a first horizontal guide rail 201, a second horizontal guide rail 202, a beam assembly 203, and a mounting bracket 204. The first horizontal guide rail 201, the second horizontal guide rail 202, and the beam assembly 203 are fixedly connected. The mounting bracket 204 is fixed to the first horizontal guide rail 201 and the second horizontal guide rail 202. The longitudinal guide rail assembly 500 includes a first longitudinal guide rail 501, a second longitudinal guide rail 502, a first sealing strip 503, and a second sealing strip 504. The first sealing strip 503 and the second sealing strip 504 are respectively engaged with the first longitudinal guide rail 501 and the second longitudinal guide rail 502. Figure 5 As shown, the torsion spring traction mechanism assembly 300 consists of a torsion spring 301, a rope 302, a winding reel 303, and a rotating component 304. One end of the torsion spring 301 is fixed to the top frame assembly 200, and the other end is fixed to the rotating component 304. The winding reel 303 is fixed to the rotating component 304. One end of the rope 302 is fixed to the winding reel 303, and the other end is fixed to the roller blind assembly 100. The lighting system 600 consists of a lighting lamp and a drive mechanism cover plate. The lighting lamp is fixed to the drive mechanism cover plate, and the illumination direction is the interior of the carriage.

[0030] The biggest innovation of this patent lies in the emergency unlocking function, which utilizes a retractable output shaft 4012 designed on the motor 401. This shaft, integrated with the roller shutter door drive mechanism, drives the roller shutter door slats to retract. Figure 7As shown, the motor 401 specifically includes a motor body 4011, an output shaft 4012, a spring 4013, a coupling 4014, bolts 4015, and a bearing 4016. The emergency unlocking assembly 700 includes a lever 701 and a pull rope 702. The end of the output shaft 4012 is fixedly connected to the coupling 4014 by bolts 4015, securing the spring 4013 to the output shaft 4012. The other end of the output shaft 4012 is equipped with a bearing 4016. The lever 701 is fixed to the outer ring of the bearing 4016 and the motor body 4011. One end of the lever 701 is equipped with a pull rope 702, one end of which is hidden outside the carriage. When the pull rope 702 is operated, the coupling 4014 can be disconnected from the synchronous shaft 403.

[0031] When the electric roller shutter door is working normally, the spring 4013 is freely extended, and the spring 4013 pushes against the output shaft 4012 in a fully extended state. The output shaft 4012 is connected to the synchronous shaft 403 of the drive mechanism through the coupling 4014. When the electric drive system or motor malfunctions and cannot operate, pulling the pull rope 702 on the motor drives the lever 701, which in turn causes the output shaft 4012 to compress the spring 4013 and retract. At the same time, the connection between the coupling 4014 and the synchronous shaft 403 of the drive mechanism is disconnected, and the roller shutter door is in a free state. The motor is designed to unlock the door. When the pull cord 702 is released, the spring 4013 unfolds freely and pushes the output shaft 4012 back to its fully extended state. The coupling 4014 is then reconnected to the synchronous shaft 403 of the drive mechanism, restoring the electric roller shutter door to normal operation. The motor integrates a self-locking mechanism and a Hall module. The self-locking mechanism enables the locking function of the electric roller shutter door, while the Hall module and current detection and other electrical control logic systems enable the opening and closing drive, anti-pinch and anti-collision functions, and high-precision position detection of the electric roller shutter door.

[0032] This patent balances the weight and friction of the roller blind during operation by using the winding torque of a torsion spring, reducing the torque output by the motor and protecting the motor. The specific implementation is detailed below: The torsion spring traction mechanism assembly 300 consists of a torsion spring, a rope 302, a winding wheel 303, and a rotating assembly 304. One end of the torsion spring is fixed to the top frame assembly 200, and the other end is fixed to the rotating assembly 304. The winding wheel 303 is fixed to the rotating assembly 304. One end of the rope 302 is fixed to the winding wheel 303, and the other end is connected to the roller blind assembly 100. Fixed; when the roller blind assembly 100 is closed, the motor moves the roller blind assembly 100 downward, pulling the rope 302, the winding wheel 303, and the rotating component 304, thereby driving the torsion spring to store force; when the roller blind assembly 100 is opened, the torsion spring releases force and pulls the rope 302, the winding wheel 303, and the rotating component 304, thereby driving the roller blind assembly 100 upward together with the motor; in addition, this patent provides a door head water cutter and sealing strip at the carriage door opening, the longitudinal guide rail assembly 500, the bottom leaf, and the carriage door head position to prevent water and foreign objects from entering.

[0033] The specific embodiments described herein are merely illustrative examples of the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications to the described specific embodiments or adopt similar methods to replace them, but without departing from the scope defined by the spirit of this utility model.

Claims

1. An electric roller shutter door with an emergency unlocking function, characterized in that, The device includes a top frame assembly, a roller shutter assembly, a longitudinal guide rail assembly, a torsion spring traction mechanism assembly, and a drive mechanism assembly. The roller shutter assembly, longitudinal guide rail assembly, torsion spring traction mechanism assembly, and drive mechanism assembly are installed on the upper part of the top frame assembly, and the longitudinal guide rail assembly is installed on the front part of the top frame assembly. The torsion spring traction mechanism assembly is used for the raising and lowering of the roller shutter. The drive mechanism assembly is connected to the roller shutter assembly and drives the roller shutter assembly to roll up on the longitudinal guide rail assembly. An emergency unlocking component is provided on the drive mechanism assembly. When the electric roller shutter door malfunctions, it can be unlocked through the emergency unlocking component, allowing the electric roller shutter door to be raised and lowered freely.

2. An electric roller shutter door with emergency unlocking function according to claim 1, characterized in that, The drive mechanism assembly includes a motor, gears, a synchronous shaft, and a fixed mounting bracket. The two ends of the synchronous shaft are connected to the gears, the motor is mounted on the fixed mounting bracket, and the motor is connected to the synchronous shaft. The gears are ratchet gears.

3. An electric roller shutter door with emergency unlocking function according to claim 2, characterized in that, The motor includes a motor body, an output shaft, a spring, a coupling, bolts, and bearings. The emergency unlocking assembly includes a lever and a pull rope. The end of the output shaft is fixedly connected to the coupling by bolts, and the spring is secured to the output shaft. The other end of the output shaft is equipped with a bearing. The lever is fixed to the outer ring of the bearing and the motor body. One end of the lever is equipped with a pull rope, and the other end of the pull rope is hidden outside the carriage. When the pull rope is operated, the coupling can be disconnected from the synchronous shaft.

4. An electric roller shutter door with an emergency unlocking function according to claim 2 or 3, characterized in that, The motor has a self-locking mechanism and a Hall module. The self-locking mechanism realizes the locking function of the electric roller shutter door, and the Hall module and current detection and other electrical control logic systems realize the opening and closing drive, anti-pinch and anti-collision, and high-precision position detection of the electric roller shutter door.

5. An electric roller shutter door with emergency unlocking function according to claim 1, characterized in that, The torsion spring traction mechanism assembly consists of a torsion spring, a rope, a winding wheel, and a rotating assembly. One end of the torsion spring is fixed to the top frame assembly, and the other end is fixed to the rotating assembly. The winding wheel is fixed to the rotating assembly, and one end of the rope is fixed to the winding wheel, while the other end is fixed to the roller blind assembly.

6. An electric roller shutter door with emergency unlocking function according to claim 1, characterized in that, The roller shutter assembly comprises a blade assembly, a pulley assembly, and a sealing strip. The blades are connected by a rotating shaft, the pulley assembly is fixed at both ends of the blades, and the sealing strip is engaged with the bottom blade.

7. An electric roller shutter door with emergency unlocking function according to claim 1, characterized in that, The top frame assembly includes a first horizontal guide rail, a second horizontal guide rail, a beam assembly, and a mounting bracket. The first horizontal guide rail, the second horizontal guide rail, and the beam assembly are fixedly connected, and the mounting bracket is fixed on the first horizontal guide rail and the second horizontal guide rail.

8. An electric roller shutter door with emergency unlocking function according to claim 1, characterized in that, The longitudinal guide rail assembly comprises a first longitudinal guide rail, a second longitudinal guide rail, a first sealing strip, and a second sealing strip, wherein the first sealing strip and the second sealing strip are respectively snapped onto the first longitudinal guide rail and the second longitudinal guide rail.

9. An electric roller shutter door with emergency unlocking function according to claim 1, characterized in that, The electric roller shutter door is arranged in an L-shape.

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