Magnetic control maintenance-free intelligent light-adjusting shutter

Abstract

The utility model belongs to the technical field of magnetron controlled louver, especially magnetron controlled intelligent light control louver, the utility model provides magnetron maintenance -free type intelligent light control louver, include: fixed frame, louver subassembly is set up in fixed frame, the side of fixed frame is provided with external limit strip and built -in limit strip, external limit strip and built -in limit strip jointly define the sliding slot, external limit strip and built -in limit strip side wall are provided with guide rail, the sliding slot is provided with the opening and closing sliding block and light control sliding block that can slide along its longitudinal direction, the side of opening and closing sliding block and light control sliding block is provided with the convex strip of shape adaptation with guide rail, a plurality of ball, it is evenly distributed in guide rail or convex strip, the utility model discloses the sliding slot defined through the setting external limit strip and built -in limit strip, and sets up the ball, has realized the significant reduction of movement resistance, operating noise and mechanical wear and tear, has obtained the operation light and smooth feeling and long service life.

Description

Technical Field

[0001] This utility model belongs to the field of magnetically controlled venetian blinds technology, specifically relating to magnetically controlled intelligent dimming venetian blinds, and more particularly to magnetically controlled maintenance-free intelligent dimming venetian blinds. Background Technology

[0002] Magnetic blinds are widely used in various types of buildings due to their excellent sealing performance, convenient operation, and modern aesthetic appeal. Their core functions—adjusting the slat angle to control light (dimming) and retracting / unfolding the slats (opening / closing)—are typically achieved through a magnetic slider system installed within the sealed window frame.

[0003] Specifically, the window frame is usually equipped with two main sliders: one is a smoothing slider that connects and rotates all the louvers, and the other is an opening and closing slider that gathers all the louvers. By operating the magnetic control components outside the window frame, the user drives the corresponding magnetic slider inside the window frame to move linearly along the guide rail, thereby achieving precise control of the louvers.

[0004] However, the traditional magnetically controlled venetian blinds use a sliding structure: the adjusting block and the opening / closing slider usually cooperate directly with the simple guide rail protrusion on the inner side of the window frame through the sliding groove on it, forming a sliding friction pair. After long-term use, the noise is relatively large. Therefore, related technologies set steel balls on the slider, but it still needs to rely on the guide rail to maintain balance. The guide rail will also become rough due to micro-wear, or dust will enter the friction interface, which will further aggravate the noise and jamming, producing an unpleasant "squeaking" sound and vibration, seriously affecting the user experience.

[0005] Therefore, how to avoid friction between the slider and the guide rail during the opening and closing of the louvers is a technical problem that urgently needs to be solved in this field.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0007] This disclosure provides at least one magnetically controlled, maintenance-free intelligent dimming venetian blind to solve the technical problem of friction between the slider and the guide rail during the opening and closing of the venetian blind.

[0008] In a first aspect, embodiments of this disclosure provide a magnetically controlled, maintenance-free intelligent dimming venetian blind, comprising: a fixed frame; a venetian assembly disposed within the fixed frame, wherein the fixed frame has an external limiting strip and an internal limiting strip on its side, the external limiting strip and the internal limiting strip together defining a sliding groove; a guide rail is disposed on the sidewall of the external limiting strip and the internal limiting strip; an opening / closing slider and an adjusting slider block are disposed within the sliding groove, the sides of the opening / closing slider and the adjusting slider block are provided with protrusions adapted to the shape of the guide rail, and a plurality of ball bearings are evenly distributed within the guide rail or on the protrusions; wherein the protrusions are embedded within the guide rail and form a rolling fit through the ball bearings.

[0009] In one alternative embodiment, the guide rail has a U-shaped or C-shaped cross-section.

[0010] In one optional embodiment, the guide rail has an opening with a notch, and a dust-blocking curtain is provided within the notch. Both sides of the free end of the dust-blocking curtain are provided with inclined surfaces. The opening and closing slider and / or adjusting slider are configured to move along the slide groove, so that the convex strip abuts against the inclined surface, driving the dust-blocking curtain to retract towards the notch end face to expose the guide rail.

[0011] In one optional embodiment, a mounting groove is provided on at least one side of the protrusion, and a plurality of balls are embedded in the mounting groove in a rotatable manner; when the protrusion is embedded in the guide rail, the balls partially protrude from the mounting groove and contact the inner wall of the guide rail.

[0012] In one alternative embodiment, the opening / closing slider and the adjusting slider are driven by a magnetically controlled component located outside the fixed frame via magnetic coupling.

[0013] Secondly, this disclosure also provides a magnetically controlled, maintenance-free intelligent dimming venetian blind, comprising: a fixed frame; a venetian blind assembly disposed within the fixed frame, wherein the fixed frame has an external limiting strip and an internal limiting strip on its side, the external limiting strip and the internal limiting strip together defining a sliding groove; a guide rail is disposed on the side wall of the external limiting strip and the internal limiting strip; an opening / closing slider and an adjusting slider block are disposed within the sliding groove, the sides of the opening / closing slider and the adjusting slider block are provided with protrusions adapted to the shape of the guide rail; a notch is provided at the opening position of the guide rail, a dust-blocking curtain is disposed within the notch, and inclined surfaces are provided on both sides of the free end of the dust-blocking curtain; wherein the opening / closing slider and / or the adjusting slider block are configured to move along the sliding groove, causing the protrusions to abut against the inclined surfaces, driving the dust-blocking curtain to retract toward the notch end face to expose the guide rail.

[0014] In one alternative embodiment, the venetian blind includes: a plurality of ball bearings evenly distributed within a guide rail or on a rib; wherein the rib is embedded within the guide rail and forms a rolling fit through the ball bearings.

[0015] In one optional embodiment, a mounting groove is provided on at least one side of the protrusion, and a plurality of balls are embedded in the mounting groove in a rotatable manner; when the protrusion is embedded in the guide rail, the balls partially protrude from the mounting groove and contact the inner wall of the guide rail.

[0016] In one alternative embodiment, the guide rail has a U-shaped or C-shaped cross-section.

[0017] In one alternative embodiment, the opening / closing slider and the adjusting slider are driven by a magnetically controlled component located outside the fixed frame via magnetic coupling.

[0018] The beneficial effects of this utility model are that it provides a magnetically controlled, maintenance-free intelligent dimming louver. By setting an external limit bar and an internal limit bar to define the slide groove, it provides a precise and stable movement path for the opening and closing slider and the dimming slider, avoiding operational sway. Furthermore, it is equipped with ball bearings that form a rolling fit with the inner wall of the guide rail, transforming harmful sliding friction into efficient rolling friction. This significantly reduces motion resistance, operating noise, and mechanical wear, resulting in a smooth and easy-to-use feel and a long service life.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A perspective view of the closed state of a louver provided in an embodiment of this disclosure; Figure 2 A perspective view of the louvers in the open state provided in an embodiment of this disclosure; Figure 3 A perspective view of the opening and closing slider provided in an embodiment of this disclosure; Figure 4This is a cross-sectional view of the preferred embodiment of the guide rail provided in this disclosure.

[0023] In the picture: 1. Fixed frame; 11. External limiting strip; 12. Internal limiting strip; 13. Guide rail; 14. Notch; 15. Dust curtain; 16. Sloping surface; 2. Louvered glass components; 3. Slide groove; 4. Opening and closing the slider; 5. Adjust the smooth block; 6. Convex strips; 7. Ball bearings. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0026] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0027] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0028] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0029] Research has revealed the shortcomings of existing technologies: the window frame typically has two main sliders: one for connecting and rotating all the louvers, and the other for bringing together all the louvers for opening and closing; the user operates the magnetic control components outside the window frame to drive the corresponding magnetic sliders inside the window frame to move linearly along the guide rail, thereby achieving precise control of the louvers.

[0030] However, the traditional magnetically controlled venetian blinds use a sliding structure: the adjusting block and the opening / closing slider usually cooperate directly with the simple guide rail protrusion on the inner side of the window frame through the sliding groove on it, forming a sliding friction pair. After long-term use, the noise is relatively large. Therefore, related technologies set steel balls on the slider, but it still needs to rely on the guide rail to maintain balance. The guide rail will also become rough due to micro-wear, or dust will enter the friction interface, which will further aggravate the noise and jamming, producing an unpleasant "squeaking" sound and vibration, seriously affecting the user experience.

[0031] Therefore, how to avoid friction between the slider and the guide rail during the opening and closing of the louvers is a technical problem that urgently needs to be solved in this field.

[0032] The shortcomings of the above solutions are the result of the utility model inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the utility model inventor to this disclosure.

[0033] It should be noted that similar labels and letters in the following 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.

[0034] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] like Figures 1 to 4As shown, some embodiments provide a magnetically controlled, maintenance-free intelligent dimming venetian blind, including: a fixed frame 1; the fixed frame 1 has an external limiting strip 11 and an internal limiting strip 12 on its side, the external limiting strip 11 and the internal limiting strip 12 together defining a sliding groove 3; the fixed frame 1 is the main support structure of the venetian blind, usually made of aluminum alloy, high-strength engineering plastic or composite material, providing rigidity and stability for the entire venetian blind system. Its internal space is used to accommodate the venetian blind assembly 2 and the related slider movement mechanism.

[0036] The sides of the fixed frame 1 are precisely designed with external limiting strips 11 and internal limiting strips 12. The external limiting strip 11 is located on the outer edge of the fixed frame 1 facing the outside, primarily serving external positioning and basic dust protection; while the internal limiting strip 12 is located on the inner edge of the fixed frame 1 facing the inside. The external limiting strip 11 and the internal limiting strip 12 are parallel to each other, jointly defining a longitudinally extending groove 3 between them. This groove 3 provides a precise movement path and accommodating space for the opening / closing slider 4 and the adjusting slider 5, ensuring that the slider can only move along a preset straight trajectory, avoiding swaying or jamming during operation, and improving the reliability and lifespan of the system.

[0037] The venetian blind assembly 2, housed within the fixed frame 1, is the core component for achieving the light-adjusting function of the venetian blinds. Similar to related technologies, the venetian blind assembly 2 consists of a series of parallel-arranged blades, a lifting cord (or strap), and a ladder rope. The angle rotation of the blades is controlled by the movement of the adjusting slider 5, thereby adjusting the light intensity. The overall retraction (lifting) and unfolding (lowering) of the blades are achieved through the movement of the opening and closing slider 4. The linkage design between the venetian blind assembly 2 and the slider system ensures the smooth operation of all functions of the venetian blinds.

[0038] The outer limiting strip 11 and the inner limiting strip 12 are provided with guide rails 13 on their side walls; the cross-section of the guide rail 13 is U-shaped or C-shaped; preferably, the cross-section of the guide rail 13 is U-shaped or C-shaped. This open slot structure can effectively accommodate and guide the protrusion 6 of the slider and provide multi-directional constraints to prevent the slider from detaching during movement. The U-shaped or C-shaped design gives the guide rail 13 high structural strength, which can withstand the lateral force brought about by the movement of the slider. At the same time, its inner wall can be processed to be very smooth, creating good conditions for rolling friction.

[0039] The slide groove 3 is equipped with an opening and closing slider 4 and an adjusting block 5 that can slide along its longitudinal direction. The opening and closing slider 4 and the adjusting block 5 are embedded with permanent magnets, and their magnetic poles correspond to the magnets of the external magnetic control components to form a magnetic circuit to drive the slider to move. The sides of the opening and closing slider 4 and the adjusting block 5 are provided with protrusions 6 that are adapted to the shape of the guide rail 13. The slide groove 3 is equipped with an opening and closing slider 4 and an adjusting block 5 that can slide along its longitudinal direction (i.e., the height direction of the blinds). The sides of the opening and closing slider 4 and the adjusting block 5 are provided with protrusions 6, and the shape of the protrusions 6 is adapted to the shape of the guide rail 13. The protrusions 6 serve as motion guide components for the slider, and their size and shape are precisely calculated and processed to ensure that they can be accurately embedded inside the guide rail 13.

[0040] A plurality of balls 7 are evenly distributed within the guide rail 13 or on the protrusion 6; wherein the protrusion 6 is embedded within the guide rail 13 and forms a rolling fit through the balls 7; in order to achieve a fundamental transformation from sliding friction to rolling friction and to solve the noise, wear and jamming problems mentioned in the background art, this embodiment introduces a plurality of balls 7. These balls 7 are preferably high-precision, high-hardness stainless steel or ceramic balls, which can be evenly distributed in the inner wall groove of the guide rail 13, or more preferably, evenly embedded on the side of the protrusion 6.

[0041] When the convex strip 6 is embedded in the guide rail 13, the ball 7 is located between the convex strip 6 and the inner wall of the guide rail 13, transforming the traditional surface contact sliding friction into point contact or line contact rolling friction. The rolling friction coefficient is much lower than the sliding friction coefficient, which significantly reduces motion resistance, frictional heat generation, and wear from the root. First, motion noise is greatly suppressed, avoiding unpleasant "squeaking" sounds. Second, the amount of wear is drastically reduced, allowing the guide rail 13 and the convex strip 6 to maintain a smooth surface for a long time, extending the system life and achieving the design goal of "maintenance-free" or "low maintenance". Finally, the operation feels light and smooth, improving the user experience.

[0042] In a preferred embodiment, at least one side of the protrusion 6 (typically the two main sides facing the inner wall of the guide rail 13) is provided with a mounting groove; a plurality of balls 7 are rolled into the mounting groove; the depth of the mounting groove is designed such that when the protrusion 6 is embedded in the guide rail 13, only a portion of the balls 7 protrudes from the mounting groove and forms point contact with the inner wall of the guide rail 13; this design ensures that the balls 7 can effectively bear weight and guide, while preventing the balls 7 from completely dislodging. The balls 7 can roll freely in the mounting groove, thereby transmitting motion through the rotation of the balls 7 when the slider moves, achieving efficient rolling contact; the main friction interface is transferred from the macroscopic surface of the slider / guide rail to the microscopic rotation of the balls 7 themselves, greatly reducing friction loss.

[0043] The guide rail 13 has an opening with a notch 14, and a dust curtain 15 is installed inside the notch 14. Both sides of the free end of the dust curtain 15 are provided with inclined surfaces 16. The opening and closing slider 4 and / or adjusting slider 5 are configured to move along the slide groove 3, so that the protrusion 6 abuts against the inclined surface 16, driving the dust curtain 15 to retract towards the end face of the notch 14 to expose the guide rail 13.

[0044] To address the long-standing problem of dust intrusion leading to deterioration of the friction interface, this embodiment incorporates an innovative dustproof design at the opening of the guide rail 13. Specifically, a notch 14 is provided at the opening of the guide rail 13, and a dust-blocking curtain 15 is installed within the notch 14. The dust-blocking curtain 15 can be made of flexible rubber, silicone, or soft plastic, and both sides of its free end (i.e., the end that extends into the opening of the guide rail 13) are provided with inclined surfaces 16. In its natural state (i.e., when the slider has not reached the opening), the dust-blocking curtain 15, under its own elasticity or slight pre-tightening force, will partially block the opening of the guide rail 13, thus physically preventing dust, fibers, and other impurities from intruding into the interior of the guide rail.

[0045] Specifically, when the opening / closing slider 4 and / or adjusting slider 5 are driven to move along the slide groove 3 to a position close to the dust curtain 15, the protrusion 6 on the slider will first contact and abut against the inclined surfaces 16 on both sides of the free end of the dust curtain 15; as the slider continues to move, the protrusion 6 applies pressure to the inclined surfaces 16, which will drive the dust curtain 15 to contract towards the end face of the notch 14 where it is located, that is, force the dust curtain 15 to undergo elastic deformation and retract into the notch 14; this action exposes the opening of the guide rail 13 that was originally covered by the dust curtain 15, creating a channel for the smooth passage of the protrusion 6; once the protrusion 6 has completely passed, the dust curtain 15 will rely on its own elasticity to restore its original shape and cover the opening of the guide rail 13 again.

[0046] The ingenuity of the aforementioned dynamic dustproof mechanism lies in the fact that it only temporarily opens the channel when the slider needs to pass through, while the guide rail 13 remains protected most of the time. This effectively prevents the continuous intrusion of dust, thereby keeping the interior of the guide rail 13 and the working environment of the ball bearing 7 clean, and further ensuring the long-term stability and low noise characteristics of rolling friction. This solves the key problem in the background technology that "dust intrusion into the friction interface will further aggravate noise and jamming."

[0047] At least one side of the protrusion 6 is provided with a mounting groove, and a plurality of balls 7 are embedded in the mounting groove in a rotatable manner; when the protrusion 6 is embedded in the guide rail 13, the balls 7 partially protrude out of the mounting groove and contact the inner wall of the guide rail 13.

[0048] The opening / closing slider 4 and the adjusting slider 5 are driven by a magnetically controlled component located outside the fixed frame 1 via magnetic coupling. This is the core operating principle of the magnetically controlled venetian blind. Permanent magnets are embedded in the slider inside the fixed frame 1, and permanent magnets are also installed in the external magnetic control component. When the user operates the magnetic control component externally, the internal slider is driven synchronously by magnetic force without contact. The advantage of this driving method is that it achieves complete sealing of the fixed frame 1, eliminating the need for mechanical connection holes in the frame, thus providing excellent airtightness, watertightness, and sound insulation. It is particularly suitable for locations with high sealing requirements, such as high-rise buildings and energy-efficient buildings. The magnetic coupling drive itself has no mechanical wear, further enhancing the system's maintenance-free characteristics.

[0049] Initial state: The venetian blinds are installed; the dust curtain 15 covers the opening of the guide rail 13 under the action of elasticity to prevent dust from entering; the ball bearing 7 is located in the mounting groove of the convex strip 6 and makes slight contact with the inner wall of the guide rail 13.

[0050] Opening and closing operation (folding / unfolding blades): The user operates the magnetic control component corresponding to the opening and closing slider 4; through magnetic coupling, the opening and closing slider 4 is driven to move longitudinally in the slide groove 3; when the opening and closing slider 4 moves close to the opening of the guide rail 13, its protrusion 6 contacts and presses the inclined surface 16 of the dust curtain 15, causing the dust curtain 15 to retract and expose the channel; the protrusion 6 carries the ball bearings 7 and moves smoothly in the guide rail 13.

[0051] Because of the rolling friction of the ball bearings 7, the motion resistance is extremely small and the noise is extremely low; the opening and closing slider 4 drives the lifting mechanism of the louver assembly 2 through the pull rope or connecting rod to realize the synchronous retraction or unfolding of all the blades; after the opening and closing slider 4 passes, the dust curtain 15 resets and re-closes the guide rail opening; the effect is that the blade retraction and unfolding action is quiet, smooth and labor-saving; due to low wear, the performance degradation is minimal after long-term use.

[0052] Dimming operation (adjusting blade angle): The user operates the external magnetic control component corresponding to the adjusting block 5 (usually separate from the opening and closing control); through magnetic coupling, the adjusting block 5 is driven to move longitudinally within the slide groove 3; similarly, when the convex strip 6 of the adjusting block 5 approaches the opening of the guide rail 13, it will drive the dust curtain 15 to temporarily retract to make way; the adjusting block 5 moves with low resistance within the guide rail 13 via the ball bearings 7; the movement of the adjusting block 5 is converted into the synchronous rotation of all blades through the transmission mechanism (such as a trapezoidal rope or rotating rod), changing the blade angle, thereby precisely controlling the amount of light entering the room; after the adjusting block 5 passes, the dust curtain 15 resets.

[0053] It should be further explained that the light adjustment is precise, smooth, and noiseless; the user experience is improved, and the mechanism is durable; the dust protection process: for most of the time when the slider is not moving, the dust curtain 15 is always in a shielded state, protecting the cleanliness of the inside of the guide rail 13 like an automatic door; it is only opened briefly "on demand" when the slider needs to pass through; this dynamic sealing mechanism greatly reduces the risk of dust, lint, and other impurities entering the friction pair; the effect: keeping the working interface of the guide rail and ball bearing clean for a long time avoids the problems of increased friction, increased noise, and jamming caused by the accumulation of dirt, which is the key to achieving "maintenance-free" or "long-term stability".

[0054] In summary, this utility model provides a precise and stable movement path for the opening and closing slider 4 and the adjusting block 5 by setting the slide groove 3 defined by the external limiting strip 11 and the internal limiting strip 12, thus avoiding running wobble; and by setting the ball bearing 7 to form a rolling fit with the inner wall of the guide rail 13, harmful sliding friction is transformed into efficient rolling friction, which significantly reduces motion resistance, running noise and mechanical wear, and achieves a light and smooth operation and a long service life, laying the core foundation for "maintenance-free" operation. By setting a dust-blocking curtain 15 with an inclined surface 16 inside the notch 14 of the guide rail 13, which interacts with the moving convex strip 6, a dynamic dust-proof mechanism is formed, which improves the dust-proof capability inside the guide rail system, effectively prevents performance degradation caused by dust intrusion, and reduces maintenance requirements and failure rate; the magnetic coupling drive method maintains the sealing integrity of the fixed frame 1 and improves the airtightness and sound insulation performance of the louver.

[0055] Some embodiments provide a magnetically controlled, maintenance-free intelligent dimming venetian blind, including: a fixed frame 1; a venetian blind assembly 2 disposed within the fixed frame 1, wherein an external limiting strip 11 and an internal limiting strip 12 are provided on the side of the fixed frame 1, the external limiting strip 11 and the internal limiting strip 12 together defining a sliding groove 3; guide rails 13 are provided on the side walls of the external limiting strip 11 and the internal limiting strip 12; and an opening / closing slider 4 and an adjusting slider 5, which can slide along the longitudinal direction of the sliding groove 3, are provided within the sliding groove 3. The sides of the opening and closing slider 4 and the adjusting block 5 are provided with protrusions 6 that are adapted to the shape of the guide rail 13; the opening position of the guide rail 13 is provided with a notch 14, and a dust curtain 15 is provided in the notch 14. Both sides of the free end of the dust curtain 15 are provided with inclined surfaces 16; wherein, the opening and closing slider 4 and / or the adjusting block 5 are configured to move along the slide groove 3, so that the protrusions 6 abut against the inclined surfaces 16, driving the dust curtain 15 to retract towards the end face of the notch 14 to expose the guide rail 13.

[0056] The louver includes a number of ball bearings 7, which are evenly distributed in the guide rail 13 or on the rib 6; wherein the rib 6 is embedded in the guide rail 13 and forms a rolling fit through the ball bearings 7; at least one side of the rib 6 is provided with a mounting groove, and the ball bearings 7 are rolled in the mounting groove; when the rib 6 is embedded in the guide rail 13, the ball bearings 7 partially protrude from the mounting groove and contact the inner wall of the guide rail 13; the cross-section of the guide rail 13 is U-shaped or C-shaped.

[0057] The opening and closing slider 4 and the adjusting slider 5 are driven by a magnetic control component located outside the fixed frame 1 through magnetic coupling.

[0058] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0059] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model 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 of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0060] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A magnetically controlled, maintenance-free intelligent dimming venetian blind, characterized in that, include: Fixed frame (1); The louver assembly (2) is set within the fixed frame (1). The fixed frame (1) is provided with an external limiting strip (11) and an internal limiting strip (12) on its side. The external limiting strip (11) and the internal limiting strip (12) together define the slide groove (3). The side walls of the external limiting strip (11) and the internal limiting strip (12) are provided with guide rails (13). The groove (3) is provided with an opening and closing slider (4) and an adjusting block (5) that can slide along its longitudinal direction. The sides of the opening and closing slider (4) and the adjusting block (5) are provided with protrusions (6) that are adapted to the shape of the guide rail (13). Several balls (7) are evenly distributed in the guide rail (13) or on the convex strip (6); The protrusion (6) is embedded in the guide rail (13) and forms a rolling fit through the ball (7).

2. The magnetically controlled, maintenance-free intelligent dimming venetian blind as described in claim 1, characterized in that, The cross-section of the guide rail (13) is U-shaped or C-shaped.

3. The magnetically controlled, maintenance-free intelligent dimming venetian blind as described in claim 2, characterized in that, The guide rail (13) has a notch (14) at the opening position, and a dust-blocking curtain (15) is provided in the notch (14). Both sides of the free end of the dust-blocking curtain (15) are provided with inclined surfaces (16). The opening and closing slider (4) and / or adjusting slider (5) are configured to move along the groove (3) so that the convex strip (6) abuts against the inclined surface (16) and drives the dust curtain (15) to retract toward the end face of the notch (14) to expose the guide rail (13).

4. The magnetically controlled, maintenance-free intelligent dimming venetian blind as described in claim 1, characterized in that, At least one side of the protrusion (6) is provided with an installation groove, and a plurality of balls (7) are embedded in the installation groove in a rotatable manner; when the protrusion (6) is embedded in the guide rail (13), the balls (7) partially protrude from the installation groove and contact the inner wall of the guide rail (13).

5. The magnetically controlled, maintenance-free intelligent dimming venetian blind as described in claim 1, characterized in that, The opening and closing slider (4) and the adjusting slider (5) are driven by a magnetic control component located outside the fixed frame (1) through magnetic coupling.

6. A magnetically controlled, maintenance-free intelligent dimming venetian blind, characterized in that, include: Fixed frame (1); The louver assembly (2) is set within the fixed frame (1). The fixed frame (1) is provided with an external limiting strip (11) and an internal limiting strip (12) on its side. The external limiting strip (11) and the internal limiting strip (12) together define the slide groove (3). The side walls of the external limiting strip (11) and the internal limiting strip (12) are provided with guide rails (13). The groove (3) is provided with an opening and closing slider (4) and an adjusting block (5) that can slide along its longitudinal direction. The sides of the opening and closing slider (4) and the adjusting block (5) are provided with protrusions (6) that are adapted to the shape of the guide rail (13). The guide rail (13) has a notch (14) at the opening position, and a dust-blocking curtain (15) is provided in the notch (14). Both sides of the free end of the dust-blocking curtain (15) are provided with inclined surfaces (16). The opening and closing slider (4) and / or adjusting slider (5) are configured to move along the groove (3) so that the convex strip (6) abuts against the inclined surface (16) and drives the dust curtain (15) to retract toward the end face of the notch (14) to expose the guide rail (13).

7. The magnetically controlled, maintenance-free intelligent dimming venetian blind as described in claim 6, characterized in that, include: Several balls (7) are evenly distributed in the guide rail (13) or on the convex strip (6); The protrusion (6) is embedded in the guide rail (13) and forms a rolling fit through the ball (7).

8. The magnetically controlled, maintenance-free intelligent dimming venetian blind as described in claim 7, characterized in that, At least one side of the protrusion (6) is provided with an installation groove, and a plurality of balls (7) are embedded in the installation groove in a rotatable manner; when the protrusion (6) is embedded in the guide rail (13), the balls (7) partially protrude from the installation groove and contact the inner wall of the guide rail (13).

9. The magnetically controlled, maintenance-free intelligent dimming venetian blind as described in claim 8, characterized in that, The cross-section of the guide rail (13) is U-shaped or C-shaped.

10. The magnetically controlled, maintenance-free intelligent dimming venetian blind as described in claim 6, characterized in that, The opening and closing slider (4) and the adjusting slider (5) are driven by a magnetic control component located outside the fixed frame (1) through magnetic coupling.

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