Lightweight high-strength sunshade curtain reinforcing structure and automobile sunshade curtain

By designing the folding components and mounting parts, a rigid whole is formed, solving the problem of swaying and falling off the sunshade in harsh environments, achieving high strength and stability of the sunshade, and ensuring safety during driving.

CN121893741APending Publication Date: 2026-04-21ANHUI YONGFANG AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI YONGFANG AUTO PARTS CO LTD
Filing Date
2026-03-02
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional car sunshades are prone to swaying, bulging and deforming at high speeds or in crosswinds, and the fasteners can easily slip out of the window gaps, posing a safety hazard.

Method used

The design incorporates a folding component and a first mounting part, forming a rigid whole through the linkage mechanism of the locking rod and the locking slot, which enhances the wind resistance and stability of the sunshade. The linkage between the second mounting part and the limiting component enables the sunshade to intelligently switch between the use state and the storage state.

Benefits of technology

It significantly improves the wind resistance and overall deformation resistance of the sunshade curtain, ensuring that the sunshade curtain is not easily detached in harsh environments, and provides a self-locking effect to ensure the stability and safety of the sunshade curtain.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a lightweight high-strength sunshade curtain reinforcing structure and an automobile sunshade curtain, and belongs to the technical field of automobile sunshade curtains, the lightweight high-strength sunshade curtain reinforcing structure comprises two folding assemblies, and the two folding assemblies are fixedly mounted on the two sides of a sunshade curtain body respectively; the two first mounting parts are respectively positioned at one ends of the two folding assemblies and are connected with a gap of an automobile window; when the first installation parts are inserted into the gaps of the automobile window, abutting force is applied to the corresponding folding assemblies, the deformation resistance of the folding assemblies is improved, the folding assemblies can be mutually clamped to form a rigid whole during installation, and the wind resistance and the overall deformation resistance of the unfolded sunshade curtain are remarkably improved; and when the folding assembly is subjected to external disturbance force, the force can be converted into thrust to the first mounting part, the self-locking effect that the force is more and more firm is formed, and the stability of the sunshade curtain in the driving process is guaranteed.
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Description

Technical Field

[0001] This invention relates to the field of automotive sunshade technology, specifically to a lightweight, high-strength sunshade reinforcement structure and an automotive sunshade. Background Technology

[0002] With the development of the automotive industry and people's increasing demands for driving comfort, car sunshades have become an essential accessory for many vehicles. They not only effectively block ultraviolet radiation and reduce interior temperature, but also protect passenger privacy. Currently, car sunshades are mainly available in various forms, including roll-up and folding types.

[0003] To achieve compact storage, traditional folding or roller blind sunshades often use multi-segment flexible connecting rods or rely solely on the tension of the fabric itself to maintain their shape. When the vehicle is traveling at high speed, there is a strong crosswind, or the airflow impact from opening and closing the car door, the sunshade is prone to swinging significantly from side to side, bulging and deforming vertically, or even collapsing entirely. This not only produces abnormal noises and affects the driving experience, but may also cause it to fall off due to structural instability.

[0004] In existing technologies, the fasteners inserted into the gaps of car windows are mostly rigid components such as ordinary plastic or metal straight pieces, L-shaped pieces, or simple U-shaped pieces, which are fixed to the glass only by friction. When the vehicle accelerates rapidly, brakes suddenly, goes over speed bumps, or experiences crosswinds, the sunshade is easily subjected to force, causing the fasteners to slip out of the gaps in the window, resulting in the entire sunshade falling into the car, posing a significant safety hazard and causing inconvenience.

[0005] To address the aforementioned problems, this invention provides a lightweight, high-strength sunshade reinforcement structure and an automotive sunshade. Summary of the Invention

[0006] To address the aforementioned technical shortcomings, the present invention aims to provide a lightweight, high-strength sunshade reinforcement structure and an automotive sunshade. Through the cooperation of the first mounting part and the folding assembly, the folding assembly can lock together to form a rigid whole during installation, significantly improving the wind resistance and overall deformation resistance of the sunshade after it is unfolded. Furthermore, when the folding assembly is subjected to external interference, the force is converted into a thrust on the first mounting part, forming a self-locking effect that becomes tighter under stress, ensuring the stability of the sunshade during driving.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a lightweight, high-strength sunshade reinforcement structure and an automotive sunshade, comprising: Two folding components are respectively fixedly installed on both sides of the sunshade body; Two first mounting parts are located at one end of each of the two folding assemblies and are connected to the gap of the car window; When the first mounting part is inserted into the gap of the car window, a clamping force is applied to the corresponding folding component to increase the deformation resistance of the folding component. At the same time, when the folding component is subjected to external interference, a thrust is applied to the first mounting part to push it into the gap of the car window, making the first mounting part more stable.

[0008] Preferably, the folding assembly includes: The fixing rod is fixedly installed on the sunshade curtain body; A plug-in rod is fixedly installed on the sunshade body, and the first mounting part is installed at the end of the plug-in rod away from the fixed rod; Multiple connecting rods are located between the fixed rod and the plug-in rod, and are fixedly installed on the sunshade body; When the first mounting part is inserted into the gap of the car window, multiple connecting rods interlock with each other, and the fixing rod and the plugging rod interlock with their corresponding connecting rods.

[0009] Preferably, a locking rod is slidably installed inside the plug rod and the plurality of connecting rods, and a locking groove adapted to the locking rod is provided on the lower end surface of the fixing rod and the plurality of connecting rods.

[0010] Preferably, the upper end face of the plug rod and the plurality of connecting rods are provided with a sliding groove for the locking rod to slide. The upper end of the locking rod extends to the outside of the corresponding sliding groove. A spring is connected between the lower end of the locking rod and the bottom side wall of the corresponding sliding groove. The spring has an elastic tendency to pull the locking rod into the sliding groove.

[0011] Preferably, a top rod is fixedly installed at one end of the clamp rod inside the slide groove, and the end of the top rod away from the corresponding clamp rod penetrates the bottom sidewall of the corresponding slide groove and extends to the outside of the slide groove.

[0012] Preferably, the first mounting part is U-shaped and made of elastic material. One end of its open end is a fixed end that is fixedly connected to the plug rod, and the other end is a floating end that is fixedly connected to the outer end of the top rod located on the plug rod. When the first mounting part is inserted into the gap of the car window, the floating end of the first mounting part will apply a pressing force towards the inside of the plug rod to the top rod connected to it, thereby causing the locking rod located inside the plug rod to move upward, pushing the top rod on the connecting rod above it upward, causing all the locking rods to move upward and engage with the corresponding locking slots.

[0013] Preferably, the upper end of the lever is hemispherical, and the shape of the slot is adapted to the shape of the lever.

[0014] A car sunshade includes a main frame for wrapping and storing the sunshade body, and also includes any of the sunshade reinforcement structures described above. Both ends of the main frame are equipped with second mounting parts and limiting components for limiting the sunshade body when storing it. The limiting components retract into the main frame when the second mounting parts are inserted into the gap of the car window, and extend out from the inside of the main frame when stored.

[0015] The second mounting part is U-shaped and made of elastic material. One end of its opening is a fixed end that is fixedly installed on the main frame, and the other end is a floating end that extends into the interior of the main frame through a through hole provided on the main frame and is fixedly installed with a pressing block. The upper side of the pressing block is a sloping surface that is high in the middle and low on both sides.

[0016] The limiting component includes: Two sliding plates are symmetrically slidably installed on both sides of the inside of the main frame. The side of the two sliding plates facing each other extends into the inside of the main frame through a through groove provided on the main frame and is fixedly installed with a fixing block adapted to the extrusion block. The lower side of the fixing block away from the corresponding sliding plate is a slope with the inside higher than the outside. Two sliding plates are fixedly installed at both ends of one side of the two sliding plates. A spring is installed between the fixed plate and the inner wall of the main frame. The spring has a clamping force to press the sliding plates against the middle of the main frame.

[0017] The beneficial effects of this invention are as follows: The invention's first mounting part, top rod, locking rod, and locking slot, in their coordinated arrangement, achieve automatic rigid locking and strength enhancement of the sunshade's side-folding structure in the installed state. The first mounting part adopts an elastic U-shaped design, which deforms under pressure when inserted into the gap of a car window. This deformation force drives the floating end to push the top rod, which in turn links the locking rod inside the insertion rod and connecting rod to overcome spring resistance and slide upward, inserting it into the corresponding locking slot above. This linkage mechanism allows the folding components, originally designed for storage, to instantly lock together during installation and use, forming a rigid whole. This significantly improves the sunshade's wind resistance and overall deformation resistance after unfolding, solving the problem of traditional folding sunshades easily swaying. Furthermore, because the upper end of the locking rod is hemispherical, when the sunshade is under force, the locking rod and the slot wall squeeze against each other, making the connection between the first mounting part and the window glass gap tighter. This creates a self-locking effect that becomes tighter under pressure, making the first mounting part less likely to fall off in harsh environments and further ensuring the stability of the sunshade during driving.

[0018] This invention achieves intelligent automatic switching between the use state and the storage state of the sunshade limiting component through the coordinated arrangement of the second mounting part, the squeezing block, the fixing block, and the sliding plate. The second mounting part also uses the pressure inserted into the gap of the car window to force the floating end of the U-shaped structure to push the squeezing block to move, so that the squeezing block no longer applies a clamping force to the fixing block. At this time, under the elastic force of the spring, the sliding plate will retract into the interior of the main frame, without affecting the practicality of the sunshade. When the sunshade is removed and prepared for rolling up and storing, the pressure disappears, and the second mounting part will pull the squeezing block, so that the squeezing block applies a clamping force to the fixing block, causing the sliding plate to extend from the interior of the main frame, limiting and guiding the rolling up of the sunshade body, and preventing it from rolling off-center or getting stuck. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a cross-sectional view of the fixing rod, the plug-in rod, and the connecting rod of the present invention.

[0022] Figure 3 For the present invention Figure 2 Enlarged view of point A.

[0023] Figure 4 This is an exploded view of the locking rod and locking slot of the present invention.

[0024] Figure 5 This is a cross-sectional view of the main frame of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of the skateboard, fixing block, and fixing plate of the present invention.

[0026] Figure 7 For the present invention Figure 6 Enlarged view of point B.

[0027] Explanation of reference numerals in the attached figures: 1. Fixing rod, 2. Insertion rod, 3. Connecting rod, 4. Clamping rod, 5. Clamping groove, 6. Slide groove, 7. Spring, 8. Top rod, 9. First mounting part, 10. Main frame, 11. Second mounting part, 12. Extrusion block, 13. Slide plate, 14. Fixing block, 15. Fixing plate, 16. Spring piece. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] This invention provides a lightweight, high-strength sunshade reinforcement structure and an automotive sunshade, such as... Figures 1 to 7 As shown.

[0030] Example 1: A lightweight, high-strength sunshade reinforcement structure includes two folding components, which are respectively fixedly installed on both sides of the sunshade body, serving as a support frame for the sunshade when unfolded. To achieve connection with a car window, a first mounting part 9 is provided at one end of each folding component. During installation, the first mounting part 9 is inserted into the gap of the car window. The folding assembly includes a fixing rod 1 and a connecting rod 2 fixedly installed on the sunshade body. Between the fixing rod 1 and the connecting rod 2, there are also multiple connecting rods 3, which are also fixed on the sunshade body.

[0031] The plug rod 2 and multiple connecting rods 3 are slidably mounted with a locking rod 4 via a sliding groove 6. To facilitate the locking action of the locking rod 4, a locking groove 5, which matches the shape of the locking rod 4, is provided on the lower end face of the fixed rod 1 and multiple connecting rods 3. The upper end of the locking rod 4 extends outward through the sliding groove 6, while a spring 7 connects the lower end of the locking rod 4 to the bottom side wall of the sliding groove 6. In the natural state (i.e., the retracted state), the spring 7 uses its own elastic tension to pull the locking rod 4 into the sliding groove 6, causing the locking rod 4 to retract completely into the rod body. At this time, the rods do not interfere with each other, and the folding assembly can be folded and stored freely.

[0032] A top rod 8 is fixedly installed at one end of the locking rod 4 inside the slide groove 6. The top rod 8 extends through the bottom wall of the slide groove 6 to the outside. The first mounting part 9 has an overall U-shaped structure and is made of elastic material. One side of its open end is fixedly connected to the plug rod 2 as a fixed end, and the other side is fixedly connected to the outer end of the top rod 8 as a floating end.

[0033] When the user inserts the first mounting part 9 into the gap of the car window, the opening of the U-shaped structure is pressed closed, and the floating end of the first mounting part 9 undergoes elastic deformation, applying a pressing force towards the inside of the insertion rod 2 to the top rod 8 connected to it. This force overcomes the resistance of the spring 7 and pushes the locking rod 4 located inside the insertion rod 2 upward. The top rods 8 and locking rods 4 inside the multiple connecting rods 3 form a linkage, and the lower locking rod 4 pushes the upper top rod 8 upward, thereby causing all the locking rods 4 to move upward synchronously and insert into the corresponding slots 5. At this time, the fixing rod 1, the insertion rod 2, and the multiple connecting rods 3 are locked together by the locking rods 4, forming a rigid whole, which greatly increases the deformation resistance of the folding assembly.

[0034] Example 2: To further optimize the locking structure and force feedback mechanism, the upper end of the lever 4 is designed as a hemispherical shape, and the corresponding slot 5 is also designed as a matching hemispherical groove. This spherical fit design not only facilitates the smooth insertion of the lever 4 into the slot 5 under the action of thrust, but also provides multi-angle force support after locking.

[0035] When the car is in motion, the sunshade is subjected to external disturbances (such as wind or bumps), and the folding assembly tends to twist or bend. Since the rods are rigidly connected by the latch 4, these external disturbances will not cause the assembly to fold, but will instead be converted into compressive force on the connection points. Because the first mounting part 9 adopts a flexible U-shaped design and is tightly connected to the plug rod 2 and the top rod 8, the external disturbances experienced by the folding assembly will act in the opposite direction on the first mounting part 9, applying a pushing force towards the gap in the car window.

[0036] This creates a self-locking effect: the greater the external interference, the deeper and tighter the first mounting part 9 is pushed into the gap. Simultaneously, the hemispherical locking rod 4 and the groove wall of the locking slot 5 press against each other, eliminating gaps between the rods and making the connection between the first mounting part 9 and the window glass gap even tighter. This not only solves the problem of traditional sunshades easily swaying but also ensures the stability of the sunshade installation under harsh road conditions, preventing accidental detachment.

[0037] Example 3: A car sunshade includes the aforementioned reinforcing structure and a main frame 10 for wrapping and storing the sunshade body. Second mounting portions 11 are installed at both ends of the main frame 10, along with a set of limiting components for confining the sunshade body during storage. The second mounting portion 11 is U-shaped, made of elastic material, with one open end fixedly mounted to the main frame 10, and the other end being a floating end that extends through a through-hole in the main frame 10 into the interior of the main frame 10, where a pressing block 12 is fixedly installed. The upper side of the pressing block 12 is designed as a sloping structure, higher in the middle and lower on both sides.

[0038] The limiting assembly includes two symmetrically sliding slide plates 13 mounted on both sides of the main frame 10. The opposing sides of these two slide plates 13 extend into the interior through through slots in the main frame 10 and are fixedly fitted with fixing blocks 14 adapted to the pressing blocks 12. The lower side of the fixing block 14 away from the slide plate 13 is designed as a slope with a higher inner surface and a lower outer surface. Furthermore, fixing plates 15 are fixed to both ends of the opposing sides of the slide plates 13. Spring tabs 16 are installed between the fixing plates 15 and the inner wall of the main frame 10, and the spring tabs 16 always apply a pressing force to the slide plates 13 towards the center of the main frame 10 (i.e., in the inward contraction direction).

[0039] When the sunshade is in use, i.e., when the second mounting part 11 is inserted into the gap of the car window, the U-shaped structure is deformed under pressure, and the floating end pushes the pressing block 12 to displace inside the main frame 10. The movement of the pressing block 12 releases the inclined support or compression on the fixed block 14. At this time, under the elastic force of the spring piece 16, the sliding plate 13 automatically retracts inward into the main frame 10. This design allows the limiting components to be completely hidden when the sunshade is in use, reducing the space occupied and not affecting the installation of the sunshade.

[0040] When the sunshade is removed for storage, the second mounting part 11 disengages from the window gap, and the pressure disappears. The U-shaped structure returns to its original state, pulling the compression block 12 back to its original position. During the resetting process, the inclined surface of the compression block 12 presses against the inclined surface of the fixing block 14 again, overcoming the resistance of the spring piece 16, and pushing the fixing block 14 and the sliding plate 13 outward. At this time, the sliding plate 13 extending from inside the main frame 10 forms a guide channel, limiting the sunshade body that is being rolled up and stored, effectively preventing the curtain from rolling off-center, wrinkling, or getting stuck.

[0041] Furthermore, the hemispherical locking rod 4 and the groove wall of the locking slot 5 press against each other, generating a bidirectional force that not only pushes the first mounting part 9 into the gap of the car window, but also pushes the second mounting part 11 into the gap of the car window.

[0042] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A lightweight, high-strength sunshade curtain reinforcement structure, characterized in that, include: Two folding components are respectively fixedly installed on both sides of the sunshade body; Two first mounting parts (9) are located at one end of the two folding assemblies and are connected to the gap of the car window; When the first mounting part (9) is inserted into the gap of the car window, a clamping force is applied to the corresponding folding component to increase the deformation resistance of the folding component. At the same time, when the folding component is subjected to external interference, a thrust is applied to the first mounting part (9) to push it into the gap of the car window, so that the first mounting part (9) is installed more stably.

2. The lightweight, high-strength sunshade curtain reinforcement structure as described in claim 1, characterized in that, The folding assembly includes: A fixing rod (1) is fixedly installed on the sunshade curtain body; The plug rod (2) is fixedly installed on the sunshade body, and the first mounting part (9) is installed on the end of the plug rod (2) away from the fixed rod (1); Multiple connecting rods (3) are located between the fixed rod (1) and the plug rod (2) and are fixedly installed on the sunshade body; When the first mounting part (9) is inserted into the gap of the car window, multiple connecting rods (3) are interlocked with each other, and the fixing rod (1) and the plugging rod (2) are interlocked with the corresponding connecting rod (3) respectively.

3. The lightweight, high-strength sunshade curtain reinforcement structure as described in claim 2, characterized in that, The plug rod (2) and multiple connecting rods (3) are slidably installed with a locking rod (4), and the lower end face of the fixing rod (1) and multiple connecting rods (3) is provided with a locking groove (5) that is compatible with the locking rod (4).

4. The lightweight, high-strength sunshade curtain reinforcement structure as described in claim 3, characterized in that, The upper end face of the plug rod (2) and the multiple connecting rods (3) is provided with a sliding groove (6) for the locking rod (4) to slide. The upper end of the locking rod (4) extends to the outside of the corresponding sliding groove (6). A spring (7) is connected between the lower end of the locking rod (4) and the bottom side wall of the corresponding sliding groove (6). The spring (7) has an elastic tendency to pull the locking rod (4) into the sliding groove (6).

5. The lightweight, high-strength sunshade curtain reinforcement structure as described in claim 4, characterized in that, One end of the clamp (4) located inside the slide groove (6) is fixedly installed with a top rod (8). The end of the top rod (8) away from the corresponding clamp (4) penetrates the bottom side wall of the corresponding slide groove (6) and extends to the outside of the slide groove (6).

6. The lightweight, high-strength sunshade curtain reinforcement structure as described in claim 5, characterized in that, The first mounting part (9) is U-shaped and made of elastic material. One end of its open end is a fixed end that is fixedly connected to the plug rod (2), and the other end is a floating end that is fixedly connected to the outer end of the top rod (8) located on the plug rod (2). When the first mounting part (9) is inserted into the gap of the car window, the floating end of the first mounting part (9) will apply a pressing force towards the inside of the plug rod (2) to the top rod (8) connected to it, thereby causing the locking rod (4) located inside the plug rod (2) to move upward, pushing the top rod (8) on the connecting rod (3) above it upward, causing all the locking rods (4) to move upward and engage with the corresponding locking slot (5).

7. The lightweight, high-strength sunshade curtain reinforcement structure as described in claim 3, characterized in that, The upper end of the lever (4) is hemispherical, and the shape of the slot (5) is adapted to the shape of the lever (4).

8. A car sunshade, comprising a main frame (10) for wrapping and storing the sunshade body, characterized in that, It also includes any of the sunshade reinforcement structures described in claims 1 to 7, wherein a second mounting part (11) and a limiting component for limiting the sunshade body when the sunshade body is stored are installed at both ends of the main frame (10), and the limiting component retracts into the main frame (10) when the second mounting part (11) is inserted into the gap of the car window, and extends out from the inside of the main frame (10) when stored.

9. A car sunshade as described in claim 8, characterized in that, The second mounting part (11) is U-shaped and made of elastic material. One end of its opening is a fixed end that is fixedly installed on the main frame (10), and the other end is a floating end that extends through the through hole provided on the main frame (10) to the interior of the main frame (10) and is fixedly installed with a pressing block (12). The upper side of the pressing block (12) is a slope with a high middle and low sides.

10. A car sunshade as described in claim 9, characterized in that, The limiting component includes: Two sliding plates (13) are symmetrically slidably installed on both sides of the inside of the main frame (10). The side of the two sliding plates (13) facing each other extends into the inside of the main frame (10) through the through groove provided on the main frame (10) and is fixedly installed with a fixing block (14) that is compatible with the extrusion block (12). The lower side of the fixing block (14) away from the corresponding sliding plate (13) is a slope with the inside higher than the outside. Two sliding plates (13) are fixedly installed at both ends of one side facing each other. A spring plate (16) is installed between the fixed plate (15) and the inner wall of the main frame (10). The spring plate (16) has a clamping force that presses the sliding plate (13) against the middle of the main frame (10).