Automatic roller shutter for rail transit

Abstract

The utility model relates to the technical field of rail transit, in particular to an automatic roller shutter for rail transit. The device comprises a pull rod which is arranged at the top of the roller shutter; the right support comprises a motor base, a bearing seat, a fixing piece, a driving wheel and a pre-tightening spring, wherein the motor base, the bearing seat and the fixing piece are installed on the top of the pull rod. The left bracket is provided with a pulley synchronously acting along with the driving wheel; the driven wheel comprises a support fixed to the curtain cloth, a wheel body is arranged in the center of the bottom of the support and movably arranged between the check block I and the check block II through a wheel shaft, and a steel wire rope is wound around the wheel body; the position sensor comprises an anti-skid block installed on the curtain cloth, a limiting piece is arranged on the side portion of the anti-skid block, and the limiting piece is connected with the driving wheel and the driven wheel through an anti-disengaging spring; a photoelectric sensor is further arranged on the limiting piece. By means of precise cooperation of the gear motor, the electromagnetic clutch and other assemblies, the curtain cloth is stably and automatically opened and closed, impact and noise are reduced through the pre-tightening spring, and stable operation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rail transit, and particularly relates to an automatic rolling curtain for rail transit. Background Art

[0002] With the continuous progress of rail transit technology, the demand for comfortable experience and versatility in the passenger compartments of bullet trains is increasing day by day, which prompts the technicians in this field to continuously explore and innovate solutions. In this context, as disclosed in Chinese Patent CN117022349A, a compensation mandrel assembly for high-speed EMUs and its supporting rolling curtain mechanism, device and method achieve a fast and simplified three-step installation process through an innovative installation method, that is, firmly screwing the bracket to the wall panel and cleverly connecting the steel wire rope between the tension spring and the wall panel, effectively addressing challenges such as the easy detachment of the rolling curtain on the side wall of high-speed bullet trains, unstable finished product quality, and complex installation processes.

[0003] However, although the above solutions have made remarkable progress in the installation convenience and structural stability of the rolling curtain, the current rolling curtain systems in the market still face some problems that have not been fully overcome. Specifically, traditional manual rolling curtains are not convenient to operate and are difficult to meet the requirements of rapid adjustment and precise positioning; while existing electric rolling curtain systems, although providing a convenient automated operation experience, still have room for further improvement in terms of system stability, safety guarantee during operation, and durability in long-term use. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and provide an automatic rolling curtain for rail transit.

[0005] The technical solution adopted by the utility model is as follows:

[0006] An automatic rolling curtain for rail transit includes the following structures:

[0007] A pull rod is arranged at the top of the rolling curtain;

[0008] A right bracket is arranged in an L shape, including a motor seat, a bearing seat and a fixing piece installed at the top of the pull rod, and a driving wheel and a pre-tightening spring located at the side of the pull rod;

[0009] A left bracket includes an L-shaped bracket installed on the left side of the pull rod, and a pulley that moves synchronously with the driving wheel is arranged at the left bracket;

[0010] A driven wheel includes a bracket fixed on the curtain cloth, a wheel body is arranged at the center of the bottom of the bracket, the wheel body is movably arranged between a stop block Ⅰ and a stop block Ⅱ through a wheel shaft, and a steel wire rope is wound around the wheel body;

[0011] A position sensor, including an anti-slip block installed on the curtain, with a limiting piece provided on the side of the anti-slip block, and the limiting piece is connected to the driving wheel and the driven wheel respectively through anti-disengagement springs; a photoelectric sensor is also provided on the limiting piece.

[0012] This technical solution utilizes components such as a reduction motor, an electromagnetic clutch, a driving wheel and a pre-tightening spring on the right bracket, as well as a driven wheel and a position sensor at the bottom of the curtain to achieve the functions of smooth automatic opening and closing and safety limiting of the curtain. Specifically, the pull rod is fixed through the right bracket and the left bracket, and the rebound resistance of the curtain is adjusted through the pre-tightening spring to ensure that the curtain can move smoothly and stay at the desired position when unfolding or retracting; the driven wheel is fixed on the support at the bottom of the curtain and moves between stop block Ⅰ and stop block Ⅱ through the axle. A steel wire rope is also wound around the driven wheel and is connected to the steel wire rope on the driving wheel to form a closed-loop transmission system. When the driving wheel rotates, the driven wheel is driven by the steel wire rope, thereby driving the curtain to move; the main controller receives commands from the control button or the remote control, and realizes the opening and closing of the curtain by controlling the rotation direction and speed of the reduction motor, and at the same time controls the closed and open states of the electromagnetic clutch to connect or disconnect the power transmission between the motor and the transmission system; the anti-slip block is fixed on the curtain and moves with the curtain. The limiting piece is connected to the driving wheel and the driven wheel through anti-disengagement springs. When the curtain reaches the top or bottom limit position, the limiting piece will be triggered, and the signal is transmitted through the deformation of the anti-disengagement spring; when the limiting piece is triggered, the photoelectric sensor will detect the signal and send it to the main controller. After receiving the signal, the main controller will immediately stop the rotation of the reduction motor and cut off the power transmission by controlling the opening of the electromagnetic clutch, thereby preventing the curtain from continuing to move and causing damage or safety hazards.

[0013] In addition, the automatic rolling curtain for rail transit proposed above according to the present invention also has the following additional technical features:

[0014] According to an embodiment of the present invention, the rolling curtain further includes a drum, a torsion spring, a plug, a core shaft and a snap ring; one end of the core shaft is embedded in the drum through the snap ring, and the other end of the core shaft is connected to the end of the drum through the torsion spring and fixed by the plug.

[0015] This technical solution constructs a stable and efficient curtain storage mechanism by adding components such as a drum, a torsion spring, a plug, a core shaft and a snap ring to the rolling curtain system; the core shaft is connected to the drum through the torsion spring, which is convenient for the winding of the curtain and can also provide a certain amount of resilience when power is off or during manual operation to keep the curtain tidy.

[0016] According to an embodiment of the present utility model, the motor base and the bearing seat are respectively installed on both sides of the reduction motor. One end of the reduction motor is connected to the electric control mechanism through a quick cold connection terminal, and the other end of the reduction motor is connected with an electromagnetic clutch; the electromagnetic clutch is connected to the driving wheel through a fixing piece, and the reduction motor drives the steel wire rope wound on the driving wheel. The steel wire rope passes through the pre-tightening spring below and is connected to the driven wheel.

[0017] In this technical solution, the reduction motor is installed on the right bracket through the motor base and the bearing seat, and its output end is connected to the driving wheel through the electromagnetic clutch; the function of the reduction motor is to convert electrical energy into mechanical energy, and increase the torque by reducing the speed, so as to drive the driving wheel to rotate; a steel wire rope is wound around the driving wheel. When the reduction motor rotates, the driving wheel drives the steel wire rope to wind or unwind, realizing the rising or falling of the curtain cloth.

[0018] According to an embodiment of the present utility model, the right bracket is connected with an electric control mechanism for controlling the rolling curtain switch; the electric control mechanism includes a main controller and a wiring terminal. The main controller is respectively connected to the photoelectric sensor, the reduction motor and the electromagnetic clutch through the wiring terminal. The main controller receives the action information through the photoelectric sensor, controls the steering and speed actions of the reduction motor, and controls the closing and opening states of the electromagnetic clutch.

[0019] This technical solution realizes the precise control of the photoelectric sensor, the reduction motor and the electromagnetic clutch by constructing an electric control mechanism including a main controller and a wiring terminal. The main controller can intelligently adjust the steering and speed of the reduction motor according to the signal of the photoelectric sensor, and control the state of the electromagnetic clutch, so as to realize the precise control of the rolling curtain switch.

[0020] According to an embodiment of the present utility model, the electric control mechanism further includes a wireless module, and the main controller is connected to an external remote controller through the wireless module; the position sensor is internally provided with a wireless module connected to the main controller.

[0021] This technical solution adds a wireless module to the electric control mechanism, enabling the main controller to communicate wirelessly with an external remote controller to achieve the remote control function; the wireless module built into the position sensor also ensures real-time connection with the main controller, improving the response speed of the system.

[0022] According to an embodiment of the present utility model, the right bracket further includes a protective shell, which is installed on the right side of the pull rod. The motor base, the bearing seat and the fixing piece are all arranged on the protective shell.

[0023] This technical solution adds a protective shell to the right bracket, enclosing key components such as the motor base, the bearing seat and the fixing piece, to provide additional protection and prevent external factors such as dust and moisture from damaging these components, thereby improving the durability of the entire rolling curtain system.

[0024] Compared with the prior art, the utility model has the following beneficial effects:

[0025] By the precise cooperation of components such as a reduction motor and an electromagnetic clutch, the curtain cloth can be smoothly and automatically opened and closed. The pre-tightening spring reduces impact and noise, ensuring smooth operation; combined with a position sensor and a photoelectric sensor, the position of the curtain cloth is precisely controlled to prevent overstepping the boundary, improving safety and reliability; the curtain cloth can be remotely controlled by a remote controller, and the electric control mechanism is wirelessly connected, which is convenient and efficient, enhancing the user experience; the driven wheel support is firmly installed on the wall to prevent loosening, ensuring the overall stability of the system and long-life operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the whole utility model.

[0027] In the figure: 1, pull rod; 2, right bracket; 21, quick cold connection terminal; 22, reduction motor; 23, motor base; 24, electromagnetic clutch; 25, bearing seat; 26, fixing piece; 27, driving wheel; 28, pre-tightening spring; 3, left bracket; 4, electric control mechanism; 5, position sensor; 51, anti-sliding block; 52, steel wire rope; 53, anti-disengagement spring; 54, limiting piece; 55, photoelectric sensor; 6, driven wheel; 61, support; 62, wheel axle; 63, stop block I; 64, wheel body; 65, stop block II. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] As Figure 1 shown, this embodiment provides an automatic rolling curtain for rail transit, including the following structure:

[0031] A pull rod 1, arranged at the top of the rolling curtain;

[0032] A right bracket 2, arranged in an L shape, including a motor base 23, a bearing seat 25 and a fixing piece 26 installed at the top of the pull rod 1, as well as a driving wheel 27 and a pre-tightening spring 28 located at the side of the pull rod 1;

[0033] A left bracket 3, including an L-shaped bracket, the L-shaped bracket is installed on the left side of the pull rod 1, and a pulley that moves synchronously with the driving wheel 27 is arranged at the left bracket 3;

[0034] The driven wheel 6 includes a bracket fixed to the curtain fabric. At the center of the bottom of the bracket, a wheel body 64 is provided. The wheel body 64 is movably arranged between a stop block I 63 and a stop block II 65 through a wheel shaft 62. A steel wire rope 52 is wound around the wheel body 64.

[0035] The position sensor 5 includes an anti-slip block 51 installed on the curtain fabric. A limit piece 54 is arranged on the side of the anti-slip block 51. The limit piece 54 is connected to the driving wheel 27 and the driven wheel 6 respectively through an anti-disengagement spring 53. A photoelectric sensor 55 is also arranged on the limit piece 54.

[0036] This technical solution utilizes components such as the reduction motor 22, electromagnetic clutch, driving wheel 27 and pre-tightening spring 28 on the right bracket 2, as well as the driven wheel 6 and position sensor 5 at the bottom of the curtain fabric to achieve the functions of smooth automatic opening and closing and safety limit of the curtain fabric. Specifically, the pull rod 1 is fixed through the right bracket 2 and the left bracket 3, and the pre-tightening spring 28 is used to adjust the resilience resistance of the curtain fabric to ensure that the curtain fabric can move smoothly and stay at the desired position when unfolding or retracting; the driven wheel 6 is fixed on the support 61 at the bottom of the curtain fabric and is movable between the stop block I 63 and the stop block II 65 through the wheel shaft 62. A steel wire rope 52 is also wound around the driven wheel 6 and is connected to the steel wire rope 52 on the driving wheel 27 to form a closed-loop transmission system. When the driving wheel 27 rotates, the driven wheel 6 is driven through the steel wire rope 52, thereby driving the curtain fabric to move; the main controller receives commands from the control button or remote control, and realizes the opening and closing of the curtain fabric by controlling the rotation direction and speed of the reduction motor 22, and at the same time controls the closing and opening states of the electromagnetic clutch 24 to connect or disconnect the power transmission between the motor and the transmission system; the anti-slip block 51 is fixed on the curtain fabric and moves with the curtain fabric. The limit piece 54 is connected to the driving wheel 27 and the driven wheel 6 through the anti-disengagement spring 53. When the curtain fabric reaches the top or bottom limit position, the limit piece 54 will be triggered, and the signal is transmitted through the deformation of the anti-disengagement spring 53; when the limit piece 54 is triggered, the photoelectric sensor 55 will detect the signal and send it to the main controller. After receiving the signal, the main controller will immediately stop the rotation of the reduction motor 22 and cut off the power transmission by controlling the opening of the electromagnetic clutch 24, thereby preventing the curtain fabric from continuing to move and causing damage or safety hazards.

[0037] In addition, the automatic rolling curtain for rail transit proposed above according to the present invention further has the following additional technical features:

[0038] According to an embodiment of the present invention, the rolling curtain further includes a drum, a torsion spring, a plug, a mandrel and a snap ring; one end of the mandrel is embedded in the drum through the snap ring, and the other end of the mandrel is connected to the end of the drum through the torsion spring and fixed by the plug.

[0039] This technical solution constructs a stable and efficient curtain storage mechanism by adding components such as a reel, a torsion spring, a plug, a core shaft and an opening retaining ring to the rolling curtain system; the core shaft is connected to the reel through a torsion spring, which not only facilitates the winding of the curtain, but also provides a certain rebound force in the event of power failure or manual operation, thereby keeping the curtain tidy.

[0040] According to one embodiment of the utility model, the motor seat 23 and the bearing seat 25 are respectively installed on both sides of the reduction motor 22, one end of the reduction motor 22 is connected to the electric control mechanism 4 through the quick cold connection terminal 21, and the other end of the reduction motor 22 is connected to the electromagnetic clutch; the electromagnetic clutch is connected to the driving wheel 27 through the fixing plate 26, and the reduction motor 22 drives the wire rope 52 on the driving wheel 27 to wind, and the wire rope 52 passes through the preload spring 28 below and is connected to the driven wheel 6.

[0041] In this technical solution, the reduction motor 22 is installed on the right bracket 2 through the motor seat 23 and the bearing seat 25, and its output end is connected to the driving wheel 27 through an electromagnetic clutch; the function of the reduction motor 22 is to convert electrical energy into mechanical energy, and increase the torque by reducing the speed, thereby driving the driving wheel 27 to rotate; a steel wire rope 52 is wound around the driving wheel 27, and when the reduction motor 22 rotates, the driving wheel 27 drives the steel wire rope 52 to wind or loosen, thereby realizing the rising or falling of the curtain.

[0042] According to one embodiment of the utility model, the right bracket 2 is connected to an electric control mechanism 4 for electrically controlling the roller shutter switch; the electric control mechanism 4 includes a main controller and wiring terminals, and the main controller is respectively connected to the photoelectric sensor 55, the reduction motor 22 and the electromagnetic clutch 24 through the wiring terminals. The main controller receives action information through the photoelectric sensor 55, controls the direction and speed of the reduction motor 22, and controls the closing and opening states of the electromagnetic clutch 24.

[0043] This technical solution realizes precise control of the photoelectric sensor 55, the reduction motor 22 and the electromagnetic clutch 24 by constructing an electric control mechanism 4 including a main controller and wiring terminals. The main controller can intelligently adjust the direction and speed of the reduction motor 22 and control the state of the electromagnetic clutch 24 according to the signal of the photoelectric sensor 55, thereby realizing precise control of the roller shutter switch.

[0044] According to an embodiment of the present invention, the electric control mechanism 4 further includes a wireless module, and the main controller is connected to an external remote controller via the wireless module; the position sensor 5 is built with a wireless module connected to the main controller.

[0045] This technical solution adds a wireless module to the electronic control mechanism 4 so that the main controller can communicate wirelessly with an external remote controller to achieve remote control function; the built-in wireless module of the position sensor 5 also ensures real-time connection with the main controller, thereby improving the response speed of the system.

[0046] According to an embodiment of the present utility model, the right bracket 2 further includes a protective case, which is installed on the right side of the pull rod 1, and the motor base 23, the bearing seat 25 and the fixing piece 26 are all arranged on the protective case.

[0047] The using process of the present utility model is as follows:

[0048] As Figure 1 shown, in this technical solution, by adding a protective case to the right bracket 2, key components such as the motor base 23, the bearing seat 25 and the fixing piece 26 are wrapped inside to provide additional protection, preventing external factors such as dust and moisture from damaging these components, thereby improving the durability of the entire rolling curtain system; the reduction motor 22 and the electromagnetic clutch on the right bracket 2 drive the driving wheel 27, and the driving wheel 27 is connected to the driven wheel 6 through the steel wire rope 52 to form a closed-loop drive to control the automatic opening and closing of the curtain cloth. The pre-tightening spring 28 adjusts the rebound of the curtain cloth, and the position sensor 5 monitors the limit position, and the main controller is triggered to stop the motor through the photoelectric signal to achieve safe limit. Additional mechanisms such as a drum and a torsion spring enhance the storage effect of the curtain cloth; the electric control mechanism 4 integrates a main controller, a wireless module, etc., supports remote control, the protective case protects the key components and improves the durability, and the overall realization of the stable, automatic and safe control of the curtain cloth.

[0049] It should be noted that: the improvement points of the present utility model are only in hardware improvement, and the algorithms adopted by the main controller all belong to the prior art.

[0050] Although the present utility model is described in detail by referring to the drawings and in combination with the preferred embodiments, the present utility model is not limited thereto. Without departing from the spirit and essence of the present utility model, those of ordinary skill in the art make various equivalent modifications or substitutions to the embodiments of the present utility model, and these modifications or substitutions should all be within the scope covered by the present utility model / anyone familiar with the technical field of the present invention can easily think of changes or substitutions within the technical scope disclosed by the present utility model, and should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. An automatic rolling curtain for rail transit, characterized in that: Includes the following structure: A pull rod (1) is arranged on the top of the rolling curtain; The right bracket (2) is arranged in an L shape, and comprises a motor seat (23), a bearing seat (25) and a fixing plate (26) installed on the top of the pull rod (1), and a driving wheel (27) and a preload spring (28) located on the side of the pull rod (1); The left bracket (3) comprises an L-shaped bracket, the L-shaped bracket is installed on the left side of the pull rod (1), and a pulley that moves synchronously with the driving wheel (27) is arranged on the left bracket (3); The driven wheel (6) comprises a bracket fixed on the curtain cloth, a wheel body (64) is arranged at the center of the bottom of the bracket, the wheel body (64) is movably arranged between the stopper I (63) and the stopper II (65) through the wheel shaft (62), and a steel wire rope (52) is wound around the wheel body (64); The position sensor (5) comprises an anti-sliding block (51) mounted on the curtain, a limiting plate (54) is arranged on the side of the anti-sliding block (51), and the limiting plate (54) is respectively connected to the driving wheel (27) and the driven wheel (6) through an anti-slip spring (53); and a photoelectric sensor (55) is also arranged on the limiting plate (54).

2. The automatic rolling curtain for rail transit according to claim 1, characterized in that: The roller blind also includes a roller drum, a torsion spring, a plug, a core shaft and an open retaining ring; one end of the core shaft is embedded in the roller drum through the open retaining ring, and the other end of the core shaft is connected to the end of the roller drum through the torsion spring and fixed through the plug.

3. The automatic rolling curtain for rail transit according to claim 1, characterized in that: The motor seat (23) and the bearing seat (25) are respectively installed on both sides of the reduction motor (22); one end of the reduction motor (22) is connected to the electric control mechanism (4) through a quick cold connection terminal (21); the other end of the reduction motor (22) is connected to an electromagnetic clutch; the electromagnetic clutch is connected to the driving wheel (27) through a fixing plate (26); the reduction motor (22) drives the steel wire rope (52) on the driving wheel (27) to wind, and the steel wire rope (52) passes through a preload spring (28) below and is connected to the driven wheel (6).

4. The automatic rolling curtain for rail transit according to claim 1, characterized in that: The right bracket (2) is connected to an electric control mechanism (4) for electrically controlling the roller shutter switch; the electric control mechanism (4) comprises a main controller and wiring terminals, the main controller is respectively connected to a photoelectric sensor (55), a reduction motor (22) and an electromagnetic clutch (24) via the wiring terminals, the main controller receives action information via the photoelectric sensor (55), controls the direction and speed of the reduction motor (22), and controls the closing and opening states of the electromagnetic clutch (24).

5. The automatic rolling curtain for rail transit according to claim 4, characterized in that: The electric control mechanism (4) also includes a wireless module, and the main controller is connected to an external remote controller via the wireless module; the position sensor (5) is built with a wireless module connected to the main controller.

6. The automatic rolling curtain for rail transit according to claim 1, characterized in that: The right bracket (2) also includes a protective shell, which is installed on the right side of the pull rod (1), and the motor seat (23), the bearing seat (25) and the fixing plate (26) are all arranged on the protective shell.

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