Electric roller shutter driving assembly

Abstract

The utility model provides an electric roller shutter driving assembly, which relates to the technical field of electric roller shutters and comprises a mounting shaft used for mounting a roller shutter assembly. Lifting grooves are formed in the two sides of the mounting frame correspondingly, the roller shutter assembly comprises a roller shutter cylinder and a roller shutter piece which are arranged on the mounting shaft, and sliding pieces are fixedly mounted on the two sides of the roller shutter piece correspondingly; a brake structure is arranged in the lifting groove in at least one side of the mounting frame; the roller shutter door is high in safety, the detection piece is arranged at the end, close to the ground, of the installation frame, the shielding condition of the bottom of the installation frame can be monitored in real time, when an object or a person is detected, the detection piece is used for detecting the shielding condition of the bottom of the installation frame, and the detection piece is electrically connected with the braking structure. When the roller shutter is clamped, the brake structure responds quickly to lock the roller shutter, so that the occurrence of clamping accidents is effectively prevented, and the use safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of electric roller blind technology, and more specifically, to an electric roller blind drive assembly. Background Technology

[0002] Current electric roller shutter door drive devices mostly adopt an integrated design of motor, transmission components, and roller shutter structure, realizing the lifting and lowering of the door through power transmission. A typical drive mechanism includes core components such as motor, pulley, transmission belt, and load-bearing shaft. The motor transmits power to the roller shutter drum through gear or belt transmission, driving the roller shutter slats to move vertically along the lifting groove.

[0003] Although existing technologies have achieved electrification and structural optimization, there are still significant shortcomings in terms of safety protection. If there are people or objects under the door, it cannot stop automatically, posing a risk of injury. Utility Model Content

[0004] The purpose of this invention is to address the problems in the prior art by providing an electric roller shutter drive assembly that can lock the roller shutter when an object is detected under it.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] This utility model provides an electric roller blind drive assembly, including a mounting shaft, which is disposed at the top of a mounting frame and is used to mount the roller blind assembly.

[0007] A drive motor is provided on one side of the mounting shaft. The drive motor is used to drive the mounting shaft to rotate the roller blind assembly. Lifting grooves are provided on opposite sides of the mounting frame. The roller blind assembly includes a roller blind tube provided on the mounting shaft and multiple parallel roller blind strips wound and installed on the roller blind tube. Sliding plates are fixedly installed on opposite sides of the roller blind strips. The sliding plates are used to slide in the lifting grooves.

[0008] A braking structure is provided in the lifting groove on at least one side of the mounting frame;

[0009] A detection element is provided at one end of the mounting bracket near the ground. The detection element is used to detect the obstruction at the bottom of the mounting bracket. The detection element is electrically connected to the braking structure.

[0010] Optionally, the braking structure includes a groove and a slider, the slider sliding horizontally within the groove so that the slider is placed within the groove or extends between two adjacent sliders, the slider is connected to a rack, the rack meshes with a gear, and the gear is driven to rotate by a driving member;

[0011] The braking structure also includes a connecting groove disposed inside the lifting groove, the connecting groove communicating with the slide groove and disposed along the lifting groove;

[0012] The gear is coaxially connected to the first sprocket, the first sprocket is connected to the second sprocket via a chain, the second sprocket is located at the other end of the connecting groove, the chain is placed in the connecting groove, and the shaft of the second sprocket passes through the mounting bracket and is connected to the drive component.

[0013] Optionally, the drive unit may be a brake motor or a handle (44).

[0014] Optionally, the second sprocket shaft is provided with a snap-fit ​​groove, and the handle is provided with a snap-fit ​​block. The snap-fit ​​block of the handle is placed in the snap-fit ​​groove to connect the handle and the second sprocket.

[0015] Optionally, the detection element includes an infrared emitting device and an infrared receiving device disposed opposite to each other on both sides of the mounting frame.

[0016] Optionally, the mounting bracket has mounting slots on both sides, and each mounting slot has a plurality of elongated mounting holes. The mounting slots are used to mount the infrared emitting device or the infrared receiving device.

[0017] Optionally, a motor housing is provided on one side of the top of the mounting bracket. The motor housing is used to house the drive motor, and the mounting shaft passes through the mounting bracket and extends into the motor housing to connect to the drive motor.

[0018] The motor enclosure is a sealed box.

[0019] Optionally, a stop is provided at the end of the rack, and the stop is positioned facing the gear.

[0020] Optionally, a pressure sensor is provided on the surface of the last roller blind slat away from the mounting axis facing the ground;

[0021] The pressure sensor is electrically connected to the braking structure and the drive motor, respectively.

[0022] The beneficial effects that this utility model can produce include:

[0023] 1) High safety: By installing a detection element at the ground end of the mounting frame, the obstruction situation below the roller shutter can be monitored in real time. When an object or person is detected, the braking structure will respond quickly and lock the roller shutter, effectively preventing pinching accidents and improving safety. 2) Stable operation: The reasonable structural design of the drive component, the cooperation of the mounting shaft, drive motor and lifting groove, etc., allows the roller shutter to slide smoothly in the lifting groove, making the operation more stable and preventing shaking or jamming, thus improving the service life of the roller shutter. 3) High level of intelligence: The electrical connection between the detection element and the braking structure realizes the automatic control function. No manual intervention is required. The system can automatically detect and react, improving the intelligence level of the electric roller shutter and making it more convenient to use. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is one of the structural schematic diagrams of an electric roller shutter drive assembly provided in an embodiment of this application;

[0026] Figure 2 for Figure 1 One of the enlarged structural diagrams at point A in the middle;

[0027] Figure 3 for Figure 1 Second enlarged structural diagram at point A in the middle;

[0028] Figure 4 for Figure 1 A magnified structural diagram at point B;

[0029] Figure 5 for Figure 1 A magnified structural diagram at point C.

[0030] Icons: 1. Mounting bracket; 11. Lifting groove; 12. Connecting groove; 13. Slide groove; 2. Roller shutter slat; 21. Sliding plate; 3. Drive motor; 31. Mounting shaft; 41. Gear; 411. Slider; 412. Rack; 413. Stop; 42. Chain; 43. Second sprocket; 44. Handle; 5. Infrared emitting device. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. It should be noted that, without conflict, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.

[0032] While current electric roller shutters have achieved electrification and structural optimization, significant shortcomings remain in safety protection. If a person or object is located beneath the door, it cannot automatically stop, posing a risk of injury. To address these issues, this application provides an electric roller shutter drive assembly that can lock the roller shutter when an object is detected beneath it.

[0033] like Figure 1 As shown, this application embodiment provides an electric roller blind drive assembly, including a mounting shaft 31, which is disposed at the top of a mounting frame 1 and is used to mount the roller blind assembly. A drive motor 3 is disposed on one side of the mounting shaft 31 and is used to drive the mounting shaft 31 to rotate the roller blind assembly. Lifting grooves 11 are respectively disposed on opposite sides of the mounting frame 1. The roller blind assembly includes a roller blind tube disposed on the mounting shaft 31 and a plurality of parallel roller blind strips 2 wound and mounted on the roller blind tube. Sliding plates 21 are fixedly installed on opposite sides of the roller blind strips 2 and are used to slide within the lifting grooves 11. A braking structure is disposed in the lifting groove 11 on at least one side of the mounting frame 1. A detection element is disposed at the end of the mounting frame 1 near the ground and is used to detect the obstruction of the bottom of the mounting frame 1. The detection element and the braking structure are electrically connected. The detection component can monitor the obstruction below the roller shutter in real time. When an object or person is detected, the braking structure responds quickly, locking the roller shutter by inserting slider 411 between two adjacent sliding plates 21. This effectively prevents pinching accidents and improves safety. No manual intervention is required; the system automatically detects and reacts, enhancing the intelligence of the electric roller shutter and making it more convenient to use. During normal use, when the roller shutter rises to its highest position and opens, slider 411 can be driven to insert between two adjacent sliding plates 21 to secure the roller shutter and prevent it from accidentally sliding down.

[0034] like Figure 2 and Figure 3The braking structure includes a slide groove 13 and a slider 411. The slider 411 slides horizontally in the slide groove 13 so that the slider 411 is placed in the slide groove 13 or extends between two adjacent slide plates 21. The slider 411 is connected to a rack 412, which meshes with a gear 41. The gear 41 is driven to rotate by a driving member. Figure 2 This is a schematic diagram of the structure where the slider 411 is placed inside the groove 13. Figure 3 This is a schematic diagram of the structure where the slider 411 extends between two adjacent sliders 21. The braking structure also includes a connecting groove 12 disposed inside the lifting groove 11. The connecting groove 12 connects to the sliding groove 13 and is disposed along the lifting groove 11. Figure 4 As shown, gear 41 is coaxially connected to the first sprocket, which is connected to the second sprocket 43 via chain 42. The second sprocket 43 is located at the other end of the connecting groove 12, and chain 42 is placed inside the connecting groove 12. The shaft of the second sprocket 43 passes through the mounting bracket 1 and connects to the drive component. The drive component is configured as a brake motor or handle (44), which can be manually operated to drive gear 41 to rotate in case of power failure or malfunction, controlling slider 411 to brake or release, enhancing the flexibility of the braking structure and emergency operation capability, ensuring that the roller shutter can be controlled as needed under different conditions. Furthermore, as... Figure 1 As shown, handle 44 is positioned in a location easily accessible to the operator, making operation convenient.

[0035] Specifically, the shaft of the second sprocket 43 is provided with a snap-fit ​​groove, and the handle 44 is provided with a snap-fit ​​block. The snap-fit ​​block of the handle 44 is placed in the snap-fit ​​groove to connect the handle 44 and the second sprocket 43. When manual operation is not required, the handle 44 can be removed to prevent accidental contact and reduce space occupation.

[0036] like Figure 5 As shown, the detection components include an infrared emitting device 5 and an infrared receiving device positioned opposite each other on both sides of the mounting frame 1. The infrared detection has a fast response speed and can accurately acquire information about bottom obstruction.

[0037] Specifically, mounting bracket 1 has mounting slots on both sides for mounting the infrared transmitter 5 or the infrared receiver 5. Each mounting slot has several elongated mounting holes. These holes allow for easy adjustment of the infrared transmitter and receiver positions according to actual installation needs, ensuring accurate alignment and improving detection precision.

[0038] Specifically, a motor housing is provided on one side of the top of the mounting bracket 1. The motor housing is used to house the drive motor 3. The mounting shaft 31 passes through the mounting bracket 1 and extends into the motor housing to connect to the drive motor 3. The motor housing is a sealed enclosure. The sealed design effectively prevents dust, moisture, etc. from entering, protecting the normal operation of the drive motor and extending its service life.

[0039] Specifically, a stop 413 is provided at the end of the rack 412, and the stop 413 is positioned facing the gear 41. When the rack 412 moves to the end, the stop can prevent the rack 412 from disengaging from the gear 41, ensuring that the rack 412 and the gear 41 are always meshed, thus ensuring the normal operation of the braking structure.

[0040] Specifically, a pressure sensor is installed on the surface of the last roller blind slat 2 facing the ground, away from the mounting shaft 31. The pressure sensor is electrically connected to the braking structure and the drive motor 3. When an object touches the roller blind slat 2 and applies pressure during the descent of the roller blind, the pressure sensor can detect and feed back a signal in time, controlling the braking structure to make the slider 411 extend into the space between the sliders 21 to brake, and controlling the drive motor 3 to stop running, or to reverse and make the roller blind rise, effectively preventing the roller blind from pinching objects or people, further improving the safety and intelligence level of the roller blind, and is especially suitable for areas with frequent personnel activity.

[0041] The working process of the electric roller blind drive assembly provided in this application embodiment is as follows: When the roller blind needs to be opened, the drive motor 3 starts, driving the mounting shaft 31 to rotate, and the roller blind tube rotates accordingly, causing the roller blind slats 2 to rise. When the roller blind rises to the highest position and opens, the brake motor drives the gear 41 to rotate, which drives the slider 411 to move forward through the rack 412 and extend between two adjacent sliders 21, fixing the roller blind and preventing it from accidentally sliding down. During the roller blind's descent and closing process, when the detection component detects an obstruction at the bottom of the mounting frame 1, the brake motor drives the gear 41 to rotate clockwise, which drives the slider 411 to move to the left through the rack 412 and extend between two adjacent sliders 21, locking the roller blind. At the same time, the drive motor 3 is controlled to stop running or reverse to raise the roller blind, preventing pinching injuries. In the event of a power outage or malfunction, the handle 44 can drive the second sprocket 43 to rotate, which in turn drives the first sprocket and gear 41 to rotate, controlling the slider 411 to brake or release.

[0042] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electric roller shutter drive assembly, comprising a mounting shaft (31), characterized in that, The mounting shaft (31) is located at the top of the mounting frame (1), and the mounting shaft (31) is used to install the roller blind assembly; A drive motor (3) is provided on one side of the mounting shaft (31). The drive motor (3) is used to drive the mounting shaft (31) to rotate the roller blind assembly. Lifting grooves (11) are provided on opposite sides of the mounting frame (1). The roller blind assembly includes a roller blind tube provided on the mounting shaft (31) and a plurality of parallel roller blind strips (2) wound and installed on the roller blind tube. Sliding plates (21) are fixedly installed on opposite sides of the roller blind strips (2). The sliding plates (21) are used to slide in the lifting grooves (11). The mounting bracket (1) has a braking structure provided in the lifting groove (11) on at least one side; The mounting bracket (1) has a detection element at one end near the ground. The detection element is used to detect the obstruction at the bottom of the mounting bracket (1). The detection element is electrically connected to the braking structure.

2. The electric roller shutter drive assembly according to claim 1, characterized in that, The braking structure includes a groove (13) and a slider (411). The slider (411) slides horizontally within the groove (13) so that the slider (411) is placed within the groove (13) or extends between two adjacent slides (21). The slider (411) is connected to a rack (412), which meshes with a gear (41). The gear (41) is driven to rotate by a driving member.

3. The electric roller shutter drive assembly according to claim 2, characterized in that, The braking structure also includes a connecting groove (12) disposed inside the lifting groove (11), the connecting groove (12) communicating with the slide groove (13) and disposed along the lifting groove (11); The gear (41) is coaxially connected to the first sprocket, the first sprocket is connected to the second sprocket (43) via the chain (42), the second sprocket (43) is located at the other end of the connecting groove (12), the chain (42) is placed in the connecting groove (12), and the shaft of the second sprocket (43) passes through the mounting bracket (1) to connect to the drive component.

4. The electric roller shutter drive assembly according to claim 3, characterized in that, The drive component is configured as a brake motor or a handle (44).

5. The electric roller shutter drive assembly according to claim 4, characterized in that, The second sprocket (43) has a snap-fit ​​groove on its shaft, and the handle (44) has a snap-fit ​​block. The snap-fit ​​block of the handle (44) is placed in the snap-fit ​​groove to connect the handle (44) and the second sprocket (43).

6. The electric roller shutter drive assembly according to claim 1, characterized in that, The detection device includes an infrared emitting device (5) and an infrared receiving device disposed opposite to each other on both sides of the mounting frame (1).

7. The electric roller shutter drive assembly according to claim 6, characterized in that, The mounting bracket (1) has mounting slots on both sides, and several elongated mounting holes are provided in the mounting slots. The mounting slots are used to install the infrared emitting device (5) or the infrared receiving device.

8. The electric roller shutter drive assembly according to claim 1, characterized in that, A motor housing is provided on one side of the top of the mounting bracket (1). The motor housing is used to house the drive motor (3). The mounting shaft (31) passes through the mounting bracket (1) and extends into the motor housing to connect the drive motor (3). The motor enclosure is a sealed box.

9. The electric roller shutter drive assembly according to claim 2, characterized in that, The rack (412) is provided with a stop (413) at its end, and the stop (413) is provided facing the gear (41).

10. The electric roller shutter drive assembly according to claim 1, characterized in that, A pressure sensor is provided on the surface of the last roller shutter slat (2) away from the mounting shaft (31) facing the ground; The pressure sensor is electrically connected to the braking structure and the drive motor (3) respectively.

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