Roller blind device avoiding motion jam
By introducing a hinged seat and a flexible swing rod structure into the roller shutter device, combined with the design of the scraper strip, the problem of motion jamming caused by tilting of the roller shutter device is solved, achieving stable opening and closing of the roller shutter and cleaning effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI AKMEIDA SHADE TECHNOLOGY CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-21
AI Technical Summary
Existing roller blind devices are prone to tilting of the roller blind and roller drum due to external wind or impact, resulting in movement stagnation and affecting the stability of use.
The system employs a hinged seat and a flexible swing rod structure. The flexible swing rod ensures full contact between the roller blind and the roller blind on the roller blind drum. A scraper strip is installed on the surface of the roller blind to clean dirt and eliminate surface protrusions, ensuring a stable connection between the roller blind and the roller blind drum.
This effectively avoids structural interference when the roller blind is raised and lowered, improves the stability of the roller blind device, and keeps the surface of the roller blind clean.
Smart Images
Figure CN224532606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of roller blind technology, specifically a roller blind device that avoids movement jamming. Background Technology
[0002] Existing roller blind systems generally include a roller blind box, a roller blind tube with the blind rolled up on its surface, and a drive mechanism. The drive mechanism, controlled electrically or manually, rotates the roller blind tube within the roller blind box to open or close the blind. In actual use, external factors such as wind and impact cause the blind to sway on the roller blind tube, resulting in relative tilting. This can lead to structural interference and movement jamming during opening or closing, resulting in poor stability of the roller blind. Utility Model Content
[0003] The purpose of this invention is to provide a roller blind device that avoids motion jamming, thereby solving the problem of poor stability in the use of existing roller blind devices.
[0004] To achieve the above objectives, this utility model adopts the following technical solution: a roller shutter device for avoiding movement jamming, comprising:
[0005] A roller shutter box has an opening at its bottom, and a roller shutter tube is rotatably installed inside it. The outer end of the roller shutter wound on the roller shutter tube extends downward and passes through the opening.
[0006] A hinge seat is positioned on the inner wall of the roller shutter box, and a swing rod is elastically oscillating on it. The abutment at the end of the swing rod abuts against the roller shutter surface on the roller shutter tube.
[0007] As a further description of the above technical solution:
[0008] Several hinge seats and swing rods are arranged at intervals along the axial and circumferential directions of the roller shutter cylinder.
[0009] As a further description of the above technical solution:
[0010] The swing rod is rotatably connected to the hinge seat via a first rotating shaft at both ends. The first rotating shaft passes through the hinge seat, and a limiting block on it abuts against the outer wall and / or inner wall of the hinge seat. A torsion spring is sleeved on the first rotating shaft, and the ends of the torsion spring are respectively positioned on the hinge seat and the swing rod, which apply an elastic preload force to the swing rod to rotate toward the roller shutter cylinder.
[0011] As a further description of the above technical solution:
[0012] A pad is provided on the inner side of the hinge seat, and the pad abuts against the swing rod.
[0013] As a further description of the above technical solution:
[0014] The abutting component is a wheel that is rotatably connected to the swing arm via a second pivot.
[0015] As a further description of the above technical solution:
[0016] The roller shutter box is provided with an annular scraper strip on the inner and / or outer side of the opening, through which the roller shutter passes.
[0017] As a further description of the above technical solution:
[0018] The bottom of the roller shutter is provided with a lower hanging plate, which is tightly fitted with the opening.
[0019] In summary, by adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:
[0020] The roller blind device of this utility model can achieve full contact between the roller blind and the roller blind on the roller blind tube through the swing rod that rotates elastically on the hinge seat. The scraper strip can remove and clean the dirt on the surface of the roller blind, eliminate surface protrusions, and thus avoid the roller blind tilting relative to the roller blind tube, which would cause structural interference and movement jamming when the roller blind is rolled up and unfolded, thereby improving the stability of the roller blind in use. Attached Figure Description
[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a diagram showing the usage state of a roller blind device that avoids movement jamming when the roller blind is unfolded.
[0023] Figure 2 This is a schematic diagram of the connection structure of the hinge seat and the swing rod in a roller shutter device that avoids movement jamming.
[0024] Figure 3 This is a diagram showing the usage state of a roller blind device that avoids movement jamming when the roller blind is retracted.
[0025] Legend:
[0026] 1. Roller shutter box; 2. Opening; 3. Roller shutter tube; 4. Lower hanging plate; 5. Hinge seat; 6. Swing rod; 7. Abutment part; 8. First pivot; 9. Limiting block; 10. Pad block; 11. Second pivot; 12. Plaster strip. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0029] Please see Figures 1-3 This utility model provides a technical solution: a roller shutter device to avoid movement jamming, comprising:
[0030] The roller blind box 1 has an opening 2 at its bottom, and a roller blind tube 3 is rotatably installed inside it. The outer end of the roller blind wound on the roller blind tube 3 extends downward and passes through the opening 2. The roller blind tube 3 can be driven by electric or manual means. For example, it can be driven directly by a motor or driven by a motor in conjunction with a transmission structure to rotate the roller blind tube 3, thereby realizing the raising and lowering of the roller blind. Other electric or manual drive structures can also be used, which are conventional drive structures for roller blinds and will not be described in detail here.
[0031] The hinge seat 5 is positioned on the inner wall of the roller blind box 1, and a swing rod 6 is elastically oscillating on it. The abutment 7 at the end of the swing rod 6 abuts against the roller blind surface on the roller blind tube 3.
[0032] The hinge seat 5 and the swing rod 6 are arranged at intervals along the axial and circumferential directions of the roller blind 3. This ensures full contact between the roller blind and the roller blind, so that the roller blind on the roller blind 3 is always pressed against the roller blind 3 and tightly wound. This prevents the roller blind from tilting relative to the roller blind 3 due to external impacts, which could cause structural interference or movement jamming when the roller blind is rolled up or down, thus improving the stability of the roller blind in use.
[0033] The swing rod 6 is rotatably connected to the hinge seat 5 via the first rotating shaft 8 at both ends. The first rotating shaft 8 passes through the hinge seat 5, and the limiting block 9 on it abuts against the outer wall and / or inner wall of the hinge seat 5. A torsion spring is sleeved on the first rotating shaft 8, and the ends of the torsion spring are respectively positioned on the hinge seat 5 and the swing rod 6, which apply an elastic preload force to the swing rod 6 to rotate toward the roller shutter 3.
[0034] A pad 10 is provided on the inner side of the hinge seat 5. The pad 10 abuts against the swing rod 6 and limits and guides the swing rod to ensure the stability of its movement.
[0035] The abutting member 7 is a wheel that is rotatably connected to the swing rod 6 via the second rotating shaft 11, thereby ensuring the stability of the abutment against the roller shutter.
[0036] The roller shutter box 1 is provided with an annular scraper strip 12 on the inner and / or outer side of the opening 2. The roller shutter passes through the scraper strip 12, thereby removing dust and other dirt from the surface of the roller shutter, ensuring cleanliness, and avoiding tilting of the roller shutter due to surface dirt protrusion, which would cause it to jam when it is rolled up or unfolded.
[0037] The bottom of the roller blind is provided with a lower hanging plate 4, which is tightly fitted with the opening 2, thereby ensuring the airtightness of the roller blind box 1 when the roller blind is retracted, and preventing dust and other airborne dirt from contaminating the roller blind device.
[0038] The working principle of a roller blind device for preventing movement jamming in this embodiment includes: when the roller blind is unfolded, such as Figure 1 As shown, the roller shutter drum 3 rotates, causing the roller shutter to gradually detach and move downwards under the gravity of the lower hanging plate 4; when the roller shutter is retracted, the roller shutter drum 3 rotates, causing the lower end of the roller shutter to be pulled upwards, where it passes through the scraper strip 12 to scrape and clean the dirt. Finally, it is wound back onto the roller shutter drum 3, and the lower hanging plate 4 is fitted onto the opening 2, as shown. Figure 3 As shown. During this period, the roller blind on the roller blind drum 3 is always pressed against the roller blind drum 3 by the abutment member 7 to avoid the roller blind tilting and causing movement jamming.
[0039] In summary, due to the adoption of the above technical solution, the roller shutter device for avoiding movement jamming in this embodiment has the following advantages compared with the prior art:
[0040] The roller blind device of this utility model can achieve full contact between the roller blind and the roller blind on the roller blind tube through the swing rod that rotates elastically on the hinge seat. The scraper strip can remove and clean the dirt on the surface of the roller blind, eliminate surface protrusions, and thus avoid the roller blind tilting relative to the roller blind tube, which would cause structural interference and movement jamming when the roller blind is rolled up and unfolded, thereby improving the stability of the roller blind in use.
[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A roller blind device for preventing movement jamming, characterized in that, include: A roller shutter box has an opening at its bottom, and a roller shutter tube is rotatably installed inside it. The outer end of the roller shutter wound on the roller shutter tube extends downward and passes through the opening. A hinge seat is positioned on the inner wall of the roller shutter box, and a swing rod is elastically oscillating on it. The abutment at the end of the swing rod abuts against the roller shutter surface on the roller shutter tube.
2. The roller shutter device for avoiding movement jamming according to claim 1, characterized in that, Several hinge seats and swing rods are arranged at intervals along the axial and circumferential directions of the roller shutter cylinder.
3. The roller shutter device for avoiding movement jamming according to claim 1, characterized in that, The swing rod is rotatably connected to the hinge seat via a first rotating shaft at both ends. The first rotating shaft passes through the hinge seat, and a limiting block on it abuts against the outer wall and / or inner wall of the hinge seat. A torsion spring is sleeved on the first rotating shaft, and the ends of the torsion spring are respectively positioned on the hinge seat and the swing rod, which apply an elastic preload force to the swing rod to rotate toward the roller shutter cylinder.
4. The roller shutter device for avoiding movement jamming according to claim 1, characterized in that, A pad is provided on the inner side of the hinge seat, and the pad abuts against the swing rod.
5. A roller shutter device for avoiding movement jamming according to claim 1, characterized in that, The abutting component is a wheel that is rotatably connected to the swing arm via a second pivot.
6. A roller shutter device for avoiding movement jamming according to claim 1, characterized in that, The roller shutter box is provided with an annular scraper strip on the inner and / or outer side of the opening, through which the roller shutter passes.
7. A roller shutter device for avoiding movement jamming according to claim 1, characterized in that, The bottom of the roller shutter is provided with a lower hanging plate, which is tightly fitted with the opening.