Automatic screen door
By employing a suction positioning mechanism and a locking mechanism in the automatic screen door, the problem of the screen door being half-open and half-closed under the action of a slight breeze or rewind force is solved, thus achieving stability, quietness, and extended screen life.
Patent Information
- Application Number
- CN202511419274.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2025-12-02
AI Technical Summary
Existing automatic screen doors tend to open halfway under slight breezes or retraction forces, affecting ventilation and aesthetics. Furthermore, the screen door is prone to hitting the door frame and generating noise at the end of its rebound, and the lightweight screen mesh is prone to localized wrinkles.
The screen door is positioned by a suction and positioning mechanism, which includes first and second suction components. The suction force is perpendicular to the sliding direction of the screen door. The movement of the screen door is controlled by a drive mechanism to achieve gradual buffering positioning of the screen door. Combined with a locking mechanism, it ensures a tight closure.
It eliminates suction power loss caused by dust and deformation, avoids impact noise from the screen door, extends the life of the screen, and ensures the stability and quietness of the screen door when opening and closing.
Smart Images
Figure CN121047480A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of door and window equipment technology, specifically to an automatic screen door. Background Technology
[0002] Sliding screen doors are frequently used in RVs and residential buildings to prevent mosquitoes from entering. The door frame of a sliding screen door is equipped with guide rails, and the screen door itself has pulleys and guide grooves to allow it to slide.
[0003] Existing automatic screen doors generally use two methods to achieve opening and closing positioning: a retractable screen with magnetic strips at the ends, or a side-sliding screen door with mechanical stops. These methods have the following drawbacks:
[0004] 1. Opening the positioning relies on the magnetic strip and the iron sheet being in close contact. Dust, deformation, or loosening of the screen weakens the suction, and the screen door will be half-open and half-closed under the action of a slight breeze or rewind force, affecting ventilation and aesthetics.
[0005] 2. The magnetic strip's attraction direction is consistent with the direction of the mesh's rewinding or sliding. The mesh still has residual kinetic energy at the end of its rebound, causing the screen door to hit the door frame and generate noise. Lightweight mesh is prone to local wrinkling. Summary of the Invention
[0006] This application aims to solve at least one of the technical problems in the background art by providing an automatic screen door.
[0007] This application is achieved through the following technical solution:
[0008] An automatic screen door includes:
[0009] Door frame;
[0010] A movable screen door, wherein the movable screen door is slidably engaged with the door frame so that the screen door can slide within the door frame to realize the opening and closing of the screen door;
[0011] A suction positioning mechanism has a first suction component and a second suction component that can attract each other. The first suction component is connected to the door frame, and the second suction component is connected to the movable screen door. The suction force direction of the first suction component and the second suction component is perpendicular to the sliding direction of the movable screen door.
[0012] A drive mechanism is connected to the door frame and is also connected to the movable screen door to drive the movable screen door to slide within the door frame.
[0013] A locking mechanism is provided, which is connected to the door frame and is used to lock the movable screen door to restrict its sliding.
[0014] A controller that responds to an operation signal to control the drive mechanism to move, thereby driving the movable screen door.
[0015] The automatic screen door provided in this application has a controller that responds to the operation signal to open the screen door and controls the drive mechanism to pull the movable screen door towards one side of the door frame. The first and second suction components generate instantaneous magnetic force in the transverse direction perpendicular to the sliding direction. As the movable screen door gradually approaches the door frame, the overlapping area of the first and second suction components in the vertical direction increases, achieving gradual buffering of the movable screen door. Finally, the lightweight screen door is suspended and positioned in the open position, eliminating the need for the magnetic strips to adhere to each other, thus eliminating the suction force attenuation caused by dust and deformation, and preventing the end of the screen mesh from hitting the door frame. When the controller responds to the operation signal to close the screen door and controls the drive mechanism to pull the screen door in the opposite direction to the closing end point, the movable screen door is limited by the locking mechanism, forming a mechanical lock to ensure a tight and windproof closure. Since the direction of the suction force is perpendicular to the sliding direction, the screen door is laterally clamped rather than longitudinally pulled at the opening end point. The final speed of the rewind is absorbed by the lateral damping of the magnetic force, which can reduce noise and extend the life of the lightweight screen mesh.
[0016] In some alternative embodiments, the first suction component includes:
[0017] The first magnetic block is slidably connected to the door frame;
[0018] A drive assembly is connected to the first magnetic block to drive the first magnetic block to slide on the door frame.
[0019] In some alternative embodiments, the driving component includes:
[0020] A slider is elastically slidably connected to the door frame and connected to the first magnetic block. The slider has a notch groove, wherein the extending direction of the notch groove forms an angle with the movement direction of the movable screen door.
[0021] A lever is connected to the movable screen door. When the movable screen door moves, it can drive the lever into the notch groove to interact with the groove wall, thereby causing the slider to slide elastically in the positive direction on the door frame.
[0022] In some optional embodiments, the slider is further provided with a return slide, the return slide comprising:
[0023] The first segment extends in a direction parallel to the sliding direction of the slider, and the first segment connects to the notch groove.
[0024] The second segment connects to the first segment, and the extension direction of the second segment forms an angle with the extension direction of the first segment;
[0025] The third segment has one end connected to the second segment and the other end passing through the slider. The extension direction of the third segment is parallel to the movement direction of the movable screen door.
[0026] When the lever is located within the third segment, the slider has a positive elastic sliding motion tendency.
[0027] In some alternative embodiments, the slider includes:
[0028] Guide rod, which is movably inserted into the door frame;
[0029] A helical spring is sleeved on the guide rod, with one end of the helical spring connected to the end of the guide rod and the other end connected to the door frame.
[0030] In some alternative embodiments, the door frame is provided with a clearance groove, and the lever is located in the clearance groove.
[0031] In some alternative embodiments, the lever is provided with a roller for contacting the wall of the notch groove, wherein the diameter of the roller is smaller than the width of the notch groove.
[0032] In some optional embodiments, the drive mechanism is a belt drive mechanism, wherein the driven gear is connected to the door frame via a tensioning assembly, wherein the tensioning assembly includes:
[0033] A connecting plate, which is connected to the door frame;
[0034] A connecting seat is provided, which is connected to the connecting plate, wherein the driven gear is rotatably connected to the connecting seat.
[0035] The tensioning rod moves through the connecting seat and the connecting plate, and the end of the tensioning rod is threaded.
[0036] The tension nut is threadedly engaged with the tension rod;
[0037] A tension spring is connected between the tension nut and the connecting plate.
[0038] In some alternative embodiments, the locking mechanism is configured with a biometric module, wherein the locking mechanism responds to execution commands from the biometric module.
[0039] In some optional embodiments, the biometric module includes a fingerprint recognition module and a facial recognition module.
[0040] Compared with the prior art, this application has the following advantages and beneficial effects:
[0041] The automatic screen door provided in this application has a controller that responds to the operation signal to open the screen door and controls the drive mechanism to pull the movable screen door towards one side of the door frame. The first and second suction components generate instantaneous magnetic force in the transverse direction perpendicular to the sliding direction. As the movable screen door gradually approaches the door frame, the overlapping area of the first and second suction components in the vertical direction increases, achieving gradual buffering of the movable screen door. Finally, the lightweight screen door is suspended and positioned in the open position, eliminating the need for the magnetic strips to adhere to each other, thus eliminating the suction force attenuation caused by dust and deformation, and preventing the end of the screen mesh from hitting the door frame. When the controller responds to the operation signal to close the screen door and controls the drive mechanism to pull the screen door in the opposite direction to the closing end point, the movable screen door is limited by the locking mechanism, forming a mechanical lock to ensure a tight and windproof closure. Since the direction of the suction force is perpendicular to the sliding direction, the screen door is laterally clamped rather than longitudinally pulled at the opening end point. The final speed of the rewind is absorbed by the lateral damping of the magnetic force, which can reduce noise and extend the life of the lightweight screen mesh. Attached Figure Description
[0042] To more clearly illustrate the technical solutions of the exemplary embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be considered 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. In the drawings:
[0043] Figure 1 This is a schematic diagram of an automatic screen door structure provided in an embodiment of this application;
[0044] Figure 2 for Figure 1 Enlarged structural diagram at point A;
[0045] Figure 3 This is a partial structural diagram of the driving component provided in an embodiment of this application;
[0046] Figure 4 This is a schematic diagram of the slider structure provided in an embodiment of this application;
[0047] Figure 5 This is a schematic diagram of the lever structure provided in an embodiment of this application;
[0048] Figure 6 This is a schematic diagram of the side cross-sectional structure of an automatic screen door provided in an embodiment of this application;
[0049] Figure 7 for Figure 1 A magnified structural diagram at point B in the middle.
[0050] The attached diagram shows the markings and corresponding component names:
[0051] 1-Door frame, 11-Sliding block, 12-Roller, 2-Movable screen door, 21-Screw, 3-Drive mechanism, 31-Connecting plate, 32-Tensioning rod, 33-Tensioning nut, 34-Tensioning spring, 35-Connecting seat, 4-Locking mechanism, 5-First suction assembly, 51-First magnet, 52-Drive assembly, 521-Slider, 5211-Notch slide, 5212-First section, 5213-Second section, 5214-Third section, 5215-Guide rod, 5216-Helical spring, 522-Toggle lever, 5221-First rod section, 5222-Second rod section, 5223-Third rod section, 523-Roller, 53-Connecting block, 6-Second suction assembly, 7-Allowing groove. Detailed Implementation
[0052] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this application are only for explaining this application and are not intended to limit this application.
[0053] like Figure 1As shown, this application embodiment provides an automatic screen door, which includes a door frame 1, a movable screen door 2, a suction positioning mechanism, a drive mechanism 3, and a locking mechanism 4. The door frame 1 is typically composed of four aluminum alloy profiles, and the overall door frame 1 has a rectangular frame structure with guide rails on the lower profiles. There are usually two screen doors, one of which is a fixed screen door, which is fixedly connected to the door frame 1, and the other is a movable screen door 2, which slides with the guide rails on the lower profiles of the door frame 1. The automatic screen door is opened and closed by driving the movable screen door 2 to slide on the door frame 1. The suction positioning mechanism has a first suction component 5 and a second suction component 6 that can attract each other. The first suction component 5 is connected to the door frame 1, and the second suction component 6 is connected to the movable screen door 2. That is, during the movement of the movable screen door 2, the first suction component 5 and the second suction component 6 can correspond in the vertical position. Specifically, when the movable screen door 2 moves to the open position, the automatic screen door is in the open state, and the first suction component 5 and the second suction component 6 are in the locking position. The first and second suction components 5 and 6 are vertically aligned and spaced apart to form a non-contact adsorption mechanism, typically 2-4 mm. At this distance, the first suction component 5 and the second suction component 6 have the largest overlap area and the greatest suction force. When the movable screen door 2 reaches its closed position, the automatic screen door is closed. The first and second suction components 5 and 6 are vertically offset, and there is no interaction force between them. The direction of the suction force of the first and second suction components 5 and 6 is perpendicular to the sliding direction of the movable screen door 2. In actual implementation, the first suction component 5 is installed on the upper profile of the door frame 1, and the second suction component 6 is installed on the upper crossbeam of the movable screen door 2. The drive mechanism 3 is connected to the door frame 1 to fix it in place. The drive mechanism 3 is also connected to the movable screen door 2 to drive it to slide within the door frame 1, thus achieving automatic opening or closing of the automatic screen door. The locking mechanism 4 is connected to the door frame 1 and is used to lock the movable screen door 2 to restrict its sliding.
[0054] When the controller responds to the operation signal to open the screen door, it controls the drive mechanism 3 to move. The movable screen door 2, driven by the drive mechanism 3, first accelerates, then slides at a constant speed, and finally decelerates. The controller can calculate the movement distance of the movable screen door 2 based on the action time of the drive mechanism 3. When the movable screen door 2 reaches the predetermined distance from the end of the opening position, the controller automatically controls the drive mechanism 3 to stop, allowing the movable screen door 2 to move freely. The movable screen door 2 continues to move forward under inertia, simultaneously creating a counter-traction on the drive mechanism 3. The drive mechanism 3 acts as a load on the movable screen door 2 to achieve deceleration. The first suction component 5 and the second self-core component will also have a partial overlap in area vertically. As the movable screen door 2 continues... As the process continues forward, the overlapping area of the first suction component 5 and the second suction component 6 in the vertical direction gradually increases, and the attraction between the first suction component 5 and the second suction component 6 also gradually increases. This attraction acts as a lateral damping for the movable screen door 2, which can provide a certain buffering effect for the movable screen door 2 and assist the drive mechanism 3 in decelerating the sliding of the movable screen door 2. As the sliding speed of the movable screen door 2 gradually decreases, the attraction between the first suction component 5 and the second suction component 6 becomes stronger and stronger. This attraction can then prompt the movable screen door 2 to quickly position itself at the predetermined position, avoiding the impact of the movable screen door 2 with the door frame 1 caused by the accumulation of errors when the movable screen door 2 is positioned solely by the drive mechanism 3, which would result in a rebound and a gap between the movable screen door 2 and the door frame 1.
[0055] The automatic screen door provided in this embodiment provides effective buffering for the movable screen door 2 by forming a dynamic attraction through the first suction component 5 and the second suction component 6. This assists the drive mechanism 3 in decelerating the sliding of the movable screen door 2. When the sliding speed of the movable screen door 2 decreases to a certain value, the second suction component 6 forms a larger attraction to position the movable screen door 2, avoiding the problem of inaccurate positioning caused by the movable screen door 2 rebounding after colliding with the door frame 1. Compared with conventional positioning methods, the automatic screen door provided in this embodiment is exempt from the use of electrical components such as sensors and limit switches. It only requires acceleration and deceleration control of the drive mechanism 3. The control mode is simple, and the overall structure is simpler. It does not rely excessively on electrical control, making the system relatively reliable and the risk of loss of control relatively low.
[0056] The automatic screen door provided in this application embodiment has a natural deceleration and eventual stop, without relying on the drive mechanism 3 for positioning. This avoids the transmission structure in the drive mechanism 3 being subjected to inertial impact due to the sudden stop of the screen door 2, which helps to ensure the structural integrity and assembly accuracy of the drive mechanism 3 and ensures its long service life.
[0057] The automatic screen door provided in this application embodiment has a controller that responds to the operation signal to open the screen door and controls the drive mechanism 3 to pull the movable screen door 2 towards the door frame 1. The first suction component 5 and the second suction component 6 generate instantaneous magnetic force in the transverse direction perpendicular to the sliding direction. As the movable screen door 2 gradually approaches the door frame 1, the overlapping area of the first suction component 5 and the second suction component 6 in the vertical direction increases, realizing the gradual buffering of the movable screen door 2. Finally, the lightweight screen door is suspended and positioned in the open position without the need for the magnetic strip to be in contact with each other, eliminating the suction force attenuation caused by dust and deformation, and preventing the end of the screen mesh from hitting the door frame 1. When the controller responds to the operation signal to close the screen door and controls the drive mechanism 3 to pull the screen door in the opposite direction to the closing end point, the movable screen door 2 is limited by the locking mechanism 4 to form a mechanical lock, ensuring a tight closure and windproofing. Since the direction of the suction force is perpendicular to the sliding direction, the screen door is clamped laterally rather than pulled longitudinally at the opening end point. The final speed of the rewind is absorbed by the magnetic lateral damping, which can reduce noise and extend the life of the lightweight screen mesh.
[0058] In this embodiment, the operation signals for opening and closing the screen door can be generated manually. For example, a button connected to the controller can be configured on the door frame 1, and the operation signal for opening and closing the screen door can be generated by manual pressing. The controller responds to the operation signal to control the drive mechanism 3. The operation signal can also be generated by signal acquisition through sensors. For example, infrared sensors, contour sensors, and other sensing elements connected to the controller can be installed on the door frame 1. By collecting the temperature and height information of the target, it can be determined whether a pedestrian is approaching. The controller controls the drive mechanism 3 to perform corresponding actions based on the signals fed back by the infrared sensors and contour sensors. The operation signal can also be generated by acquiring image information through a camera. For example, the camera can acquire an image near the automatic screen door, and the image recognition algorithm and behavior recognition algorithm can be used to determine whether a living being near the automatic screen door needs to open the door. The controller selects whether to control the drive mechanism 3 to perform actions based on the judgment result. The operation signal can also be generated by biometric recognition. For example, the drive mechanism 3 can be controlled to operate through fingerprint recognition, iris recognition, or facial recognition.
[0059] like Figure 2 As shown, in some optional embodiments, the first magnetic component 5 includes a first magnetic block 51 and a drive component 52; the first magnetic block 51 can be slidably connected to the door frame 1 through the connecting block 53. In actual implementation, the movement direction of the first magnetic block 51 is vertical, which means that when the first magnetic block 51 slides on the door frame 1, it can approach the movable screen door 2; the drive component 52 is connected to the first magnetic block 51 to drive the first magnetic block 51 to slide on the door frame 1.
[0060] In this embodiment, the gap between the first suction component 5 and the second suction component 6 can be adjusted by the drive component 52. This allows the first suction component 5 and the second suction component 6 to generate greater lateral damping when the movable screen door 2 is close to the open end position, reducing the speed regulation load on the drive mechanism 3. At the same time, when the drive mechanism 3 drives the movable screen door 2 away from the open end position, the gap between the first suction component 5 and the second suction component 6 increases under the drive of the drive component 52, and the attraction between the first suction component 5 and the second suction component 6 decreases. This reduces the lateral damping of the movable screen door 2 and prevents it from causing a large load on the drive mechanism 3.
[0061] like Figures 2-4 As shown, in some optional embodiments, the drive assembly 52 includes a slider 521 and a lever 522; the slider 521 is elastically slidably connected to the door frame 1 and connected to the first magnetic block 51, wherein when the slider 521 is in the initial position, there is an initial gap of 2~4mm between the first magnetic block 51 and the second attraction assembly 6; the slider 521 is constructed with a notch groove 5211, wherein the extension direction of the notch groove 5211 forms an angle with the movement direction of the movable screen door 2, specifically, the plane containing the extension direction of the notch groove 5211 is parallel to the plane containing the movable screen door 2; the lever 522 is connected to the movable screen door 2, wherein the movement of the movable screen door 2 can drive the lever 522. 2. The slider 521 enters the notch groove 5211 and interacts with the groove wall of the notch groove 5211, so that the slider 521 slides elastically in the positive direction on the door frame 1. That is, as the lever 522 slides in the notch groove 5211, the lever 522 will contact the groove wall of the notch groove 5211 at different positions. The vertical stiffness of the lever 522 remains unchanged. Therefore, the lever 522 will push the slider 521 to move downward, so that the slider 521 drives the first magnetic block 51 to move closer to the movable screen door 2, thereby realizing that the first magnetic block 51 moves closer to the second suction assembly 6 in the vertical direction. The second suction assembly 6 includes a second magnetic block, which is fixedly connected to the top crossbeam of the movable screen door 2.
[0062] In actual implementation, the slider 521 and the first magnetic block 51 have the same thickness. The connecting block 53 has a groove suitable for sliding cooperation between the slider 521 and the first magnetic block 51. The depth of the groove is less than the thickness of the slider 521 and greater than 1 / 2 of the thickness of the slider 521. The notch groove 5211 is located on the part of the slider 521 that protrudes from the groove to facilitate cooperation with the lever 522.
[0063] In this embodiment, the sliding block 521 slides on the door frame 1 by providing power through the movable screen door 2, reducing the use of a power source. The vertical position control of the sliding block 521 is achieved through the existing sliding motion of the movable screen door 2, simplifying the control logic and reducing the system complexity. Since the first magnetic block 51 and the second magnetic block will generate a gradually increasing attraction force when they approach each other, the movable screen door 2 only needs to provide a constant or small vertical driving force to achieve the approach of the first magnetic block 51 and the second magnetic block. This means that the greater the sliding distance of the sliding block 521, the greater the elastic force that needs to be overcome. However, the first magnetic block 51 and the second magnetic block... As the distance between the two magnetic blocks decreases, the attraction force between the first magnetic block 51 and the second magnetic block increases. Therefore, as the first magnetic block 51 approaches the second magnetic block, the attraction force between the first magnetic block 51 and the second magnetic block will provide an auxiliary force to make the slider 521 overcome the elasticity and slide. During this process, the driving force provided by the movable screen door 2 will not change too much, so as not to cause excessive load on the drive mechanism 3. When the drive mechanism 3 drives the movable screen door 2 away from the open position, the elasticity between the slider 521 and the door frame 1 will act as an auxiliary force to drive the first magnetic block 51 away from the second magnetic block. Therefore, the starting torque requirement of the drive mechanism 3 will not be too large, so as not to cause a large load on the drive mechanism 3.
[0064] like Figure 4As shown, in some optional embodiments, the slider 521 is also constructed with a return slide, which includes a first section 5212, a second section 5213, and a third section 5214. The extension direction of the first section 5212 is parallel to the sliding direction of the slider 521, and the first section 5212 is connected to the notch groove 5211, that is, in the use state, the extension direction of the first section 5212 coincides with the vertical direction. When the lever 522 slides from the opening of the notch groove 5211 to the end of the notch groove 5211, The lever 522 is simultaneously located at the upper end of the second segment 5213. Since the slider 521 is elastically slidably connected to the door frame 1, the slider 521 will be able to slide upwards to its initial position under the drive of the elastic force. At this time, there is an initial gap of 2-4mm between the first magnet 51 and the second magnet, and the attraction between the first magnet 51 and the second magnet is relatively small. The second segment 5213 serves as the clearance groove 7 for the lever 522. The second segment 5213 connects to the first segment 5212, and the extension direction of the second segment 5213 is the same as that of the first segment 5212. The extension direction of segment 5212 forms an angle. Taking the first segment 5212 as the reference center line, the second segment 5213 is biased towards the notch groove 5211. This means that when the drive mechanism 3 drives the movable screen door 2 away from the open end position, the lever 522 will enter the second segment 5213. Since the second segment 5213 forms an angle with the first segment 5212, the lever 522 will exert a holding effect on the slider 521 to push the slider 521 upward. At this time, the first magnetic block 51 will move further away from the second magnetic block. The attraction between 1 and the second magnetic block will be further reduced; one end of the third segment 5214 is connected to the second segment 5213, and the other end passes through the slider 521. The extension direction of the third segment 5214 is parallel to the movement direction of the movable screen door 2; when the lever 522 is located in the third segment 5214, the slider 521 has a positive elastic sliding tendency, that is, when the lever 522 moves into the third segment 5214, the slider 521 is fixed in the vertical position and is always higher than the initial position of the slider 521.
[0065] In this embodiment, when the slider 521 returns to its original position, the distance between the first magnetic block 51 and the second magnetic block is large, and the attraction between the first magnetic block 51 and the second magnetic block is small. As a result, the lateral damping of the movable screen door 2 is relatively small. Although the movable screen door 2 needs to overcome the elastic force between the slider 521 and the door frame 1 when it leaves the open end position, the upward stroke of the slider 521 is not required. This stroke is relatively small. At the same time, the driving force required for the slider 521 to slide upward a small distance from the initial position is small. Therefore, it will not cause a large load on the drive mechanism 3.
[0066] In some optional embodiments, the slider 521 includes a guide rod 5215 and a helical spring 5216; the guide rod 5215 is movably inserted into the door frame 1, that is, the door frame 1 has a vertical guide hole, the guide rod 5215 is inserted into the guide hole to form a movable fit, the orifice of the guide hole is provided with necessary end caps and the guide rod 5215 is provided with necessary shoulders to prevent the guide rod 5215 from sliding out of the guide hole; the helical spring 5216 is sleeved on the guide rod 5215, one end of the helical spring 5216 is connected to the end of the guide rod 5215, and the other end is connected to the door frame 1.
[0067] In some alternative embodiments, the door frame 1 is provided with a clearance groove 7, and the lever 522 is located in the clearance groove 7.
[0068] In this embodiment, the clearance groove 7 is specifically located in the upper profile of the door frame 1. By setting the clearance groove 7, the lever 522 can extend into the upper profile, so that the slider 521 can be hidden in the upper profile, which is beneficial to improving the overall appearance of the automatic screen door.
[0069] In actual implementation, such as Figure 5 As shown, the lever 522 may include a first segment 5221, a second segment 5222, and a third segment 5223. The first segment 5221 is connected to the movable screen door 2. The second segment 5222 is perpendicular to the first segment 5221. The third segment 5223 is perpendicular to both the second segment 5222 and the first segment 5221. The end of the third segment 5223 is used to engage with the notch groove 5211.
[0070] In some alternative embodiments, the lever 522 is provided with a roller 12 for contacting the wall of the notch groove 5211, wherein the diameter of the roller 12 is smaller than the width of the notch groove 5211.
[0071] In this embodiment, the roller 12 reduces the frictional resistance between the lever 522 and the notch wall, thus avoiding a large burden on the drive mechanism 3.
[0072] In some optional embodiments, the drive mechanism 3 may adopt a commonly used synchronous belt drive mechanism. For example, the drive mechanism 3 may include a drive motor, a drive gear, a synchronous belt, and a driven gear; the drive motor is connected to the door frame 1; the drive gear is rotatably connected to the door frame 1 and is driven by the drive motor, and the drive gear rotates under the drive of the drive motor; the driven gear is rotatably connected to the door frame 1, and the drive gear and the driven gear are located at both ends of the width direction of the door frame 1 respectively; the drive gear and the driven gear are connected by a synchronous belt drive; the synchronous belt is connected to the movable screen door 2, so that when the synchronous belt is driven to move, it will synchronously drive the movable screen door 2 to move.
[0073] In some alternative embodiments, such as Figure 6As shown, a sliding block 11 is connected to the movable screen door 2 via a screw 21. The movable screen door 2 is connected to a synchronous belt via the sliding block 11. Two rollers 12 are connected to the sliding block 11. A corresponding slide rail is provided inside the door frame 1. The sliding block 11 cooperates with the slide rail through the rollers 12 to improve the smoothness of sliding. By disassembling the sliding block 11, the distance between the sliding block 11 and the movable screen door 2 can be changed when the sliding block 11 is rotated, thereby realizing the micro-adjustment of the height of the movable screen door 2.
[0074] In some alternative embodiments, such as Figure 7 As shown, the driven gear in the drive mechanism 3 can be connected to the door frame 1 through a tensioning assembly. The tensioning assembly can specifically include a connecting plate 31, a tensioning rod 32, a tensioning nut 33, a tensioning spring 34, and a connecting seat 35. The connecting plate 31 is fixedly connected to the door frame 1, the connecting seat 35 is connected to the connecting plate 31, the driven gear is rotatably connected to the connecting seat 35, the tensioning rod 32 passes through the connecting seat 35 and the connecting plate 31 in sequence, one end of the tensioning rod 32 is provided with a shoulder to form an axial limit with the connecting seat 35, and the other end of the tensioning rod 32 is provided with a threaded section, the tensioning nut 33 is threadedly engaged with the tensioning rod 32, and the tensioning spring 34 is connected between the tensioning nut 33 and the connecting plate 31.
[0075] In some alternative embodiments, the locking mechanism 4 is equipped with a biometric module, wherein the locking mechanism 4 responds to the execution command action of the biometric module to unlock or lock the movable screen door 2.
[0076] In some alternative embodiments, the biometric module includes a fingerprint recognition module and a facial recognition module.
[0077] In actual implementation, the locking mechanism 4 is configured as a manual / automatic door lock, which can be manually opened with a key in the event of a power outage.
[0078] The specific embodiments described above illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details are included in the above description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.
[0079] It should be noted that in this specification, similar reference numerals and letters in the above figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this application, it should be noted that unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0080] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. An automatic screen door, characterized in that, include: Door frame (1); A movable screen door (2) is slidably engaged with the door frame (1) so that the screen door can slide within the door frame (1) to achieve the opening and closing of the screen door; A suction positioning mechanism has a first suction component (5) and a second suction component (6) that can attract each other. The first suction component (5) is connected to the door frame (1), and the second suction component (6) is connected to the movable screen door (2). The suction force direction of the first suction component (5) and the second suction component (6) is perpendicular to the sliding direction of the movable screen door (2). A drive mechanism (3) is connected to the door frame (1) and is connected to the movable screen door (2) to drive the movable screen door (2) to slide within the door frame (1); A locking mechanism (4) is connected to the door frame (1) and is used to lock the movable screen door (2) to restrict the sliding of the movable screen door (2). A controller that responds to an operation signal to control the drive mechanism (3) to move, thereby driving the movable screen door (2) to move.
2. The automatic screen door according to claim 1, characterized in that, The first suction component (5) includes: The first magnetic block (51) is slidably connected to the door frame (1); A drive assembly (52) is connected to the first magnetic block (51) to drive the first magnetic block (51) to slide on the door frame (1).
3. The automatic screen door according to claim 2, characterized in that, The driving component (52) includes: The slider (521) is elastically slidably connected to the door frame (1) and connected to the first magnetic block (51). The slider (521) has a notch groove (5211) constructed on it, wherein the extension direction of the notch groove (5211) forms an angle with the movement direction of the movable screen door (2). A lever (522) is connected to the movable screen door (2). When the movable screen door (2) moves, it can drive the lever (522) into the notch groove (5211) to interact with the groove wall of the notch groove (5211), thereby causing the slider (521) to slide elastically in the positive direction on the door frame (1).
4. The automatic screen door according to claim 3, characterized in that, The slider (521) is also provided with a return slide, the return slide comprising: The first segment (5212) extends in a direction parallel to the sliding direction of the slider (521), and the first segment (5212) is connected to the notch groove (5211). The second segment (5213) is connected to the first segment (5212), and the extension direction of the second segment (5213) forms an angle with the extension direction of the first segment (5212). The third segment (5214) is connected at one end to the second segment (5213) and at the other end to the slider (521). The extension direction of the third segment (5214) is parallel to the movement direction of the movable screen door (2). When the lever (522) is located within the third segment (5214), the slider (521) has a positive elastic sliding motion tendency.
5. The automatic screen door according to claim 3, characterized in that, The slider (521) includes: Guide rod (5215), the guide rod (5215) is movably inserted into the door frame (1); A helical spring (5216) is sleeved on the guide rod (5215). One end of the helical spring (5216) is connected to the end of the guide rod (5215), and the other end is connected to the door frame (1).
6. The automatic screen door according to claim 3, characterized in that, The door frame (1) is provided with a clearance groove (7), and the lever (522) is located in the clearance groove (7).
7. The automatic screen door according to claim 3, characterized in that, The lever (522) is equipped with a roller (12) for contacting the groove wall of the notch (5211), wherein the diameter of the roller (12) is smaller than the width of the notch (5211).
8. The automatic screen door according to claim 1, characterized in that, The drive mechanism (3) is a belt drive mechanism, wherein the driven gear is connected to the door frame (1) through a tensioning assembly, wherein the tensioning assembly includes: A connecting plate (31) is connected to the door frame (1); A connecting seat (35) is connected to the connecting plate (31), wherein the driven gear is rotatably connected to the connecting seat (35); The tensioning rod (32) moves through the connecting seat (35) and the connecting plate (31), and the end of the tensioning rod (32) is threaded. Tensioning nut (33), which is threadedly engaged with tensioning rod (32); The tension spring (34) is connected between the tension nut (33) and the connecting plate (31).
9. The automatic screen door according to claim 1, characterized in that, The locking mechanism (4) is equipped with a biometric module, wherein the locking mechanism (4) responds to the execution command action of the biometric module.
10. The automatic screen door according to claim 9, characterized in that, The biometric module includes a fingerprint recognition module and a facial recognition module.