Rigid sealing pneumatic shutter

By introducing a cleaning mechanism and sealing structure into a rigid-sealed pneumatic louver, the problems of dust contamination on the blade surface and insufficient sealing are solved, achieving efficient cleaning and sealing.

CN121533645APending Publication Date: 2026-02-17WUXI BAOHONG SHIPPING MASCH CO LTD
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Patent Information

Application Number
CN202511990113.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-26
Publication Date
2026-02-17

AI Technical Summary

Technical Problem

Dust easily accumulates on the blade surface, and it can be easily brought into the room when the air flows. Existing rigid-sealed pneumatic louvers lack effective cleaning and sealing measures.

Method used

A rigid-sealed pneumatic louver with a cleaning mechanism was designed. The louver surface is cleaned by a motor-driven threaded rod that drives gears and cleaning rollers. The louvers are opened and closed by a cylinder-driven connecting rod. The sealing performance is improved by combining a sealing plate and a plug structure.

Benefits of technology

It effectively cleans dust from the surface of the slats, improves sealing, prevents dust from entering the room, and ensures the cleanliness and sealing effect of the blinds.

✦ Generated by Eureka AI based on patent content.

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Abstract

The rigid sealing pneumatic shutter comprises a frame body, a first groove and a second groove are formed in one side of the frame body, and a plurality of blades are rotationally installed in an inner cavity of the first groove; the cleaning mechanism is used for cleaning the surfaces of the blades; the cleaning mechanism comprises a threaded rod, the threaded rod is rotatably installed in an inner cavity of the second groove, one end of the threaded rod is fixedly connected with a motor, the motor is fixedly connected with the frame body, a sliding block is slidably installed in the inner cavity of the second groove, rotating rods are rotatably connected to the two sides of the sliding block, and cleaning rollers are fixedly connected to the outer surfaces of the rotating rods. The rotating rod drives the cleaning roller to rotate on the outer surface of the blade to clean the surface of the blade, so that the rotating rod is limited through the limiting groove, the cleaning roller can be tightly attached to the surface of the blade during sliding, and the rotating rod can drive the limiting block to slide in an inner cavity of the limiting groove during use, so that the cleaning roller can be tightly attached to the surface of the blade; and the cleaning effect of the cleaning roller on blade surface dust is improved.
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Description

Technical Field

[0001] This invention relates to the field of louver technology, specifically a rigid-sealed pneumatic louver. Background Technology

[0002] Venetian blinds are a common window covering consisting of multiple horizontally or vertically arranged slats. Their core feature is the ability to precisely control indoor light and ventilation by adjusting the angle of the slats, while effectively protecting privacy. Combining practicality and aesthetics, they are available in various materials (such as metal, wood, and PVC) and are widely used in residential, office, and factory buildings, making them a representative interior design element of modern minimalist style.

[0003] Rigid-sealed pneumatic louvers are professional isolation devices used in industrial systems such as power plant flue gas ducts. They are highly automated and are mainly operated remotely through a central control system. When closed, the pneumatic actuator drives the linkage to make all the louvers close synchronously. When opened, the pneumatic actuator drives the linkage to make all the louvers open synchronously, thereby achieving the purpose of light transmission and ventilation of the room.

[0004] However, in actual use, the outer surface of the blades is exposed, and the surface of the blades is prone to accumulating a lot of dust. When the blinds are opened, air passes over the surface of the blades, and the flowing air can easily bring the dust on the blades into the room.

[0005] Therefore, a rigid-sealed pneumatic louver is proposed to address the above problems. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies and solve the problem of large amounts of dust on the blades, which can easily be brought indoors by airflow, this invention proposes a rigid sealing pneumatic louver.

[0007] A rigid sealing pneumatic louver includes a frame, with two first grooves and a second groove formed on one side of the frame, and a plurality of blades rotatably installed in the inner cavity of the first groove. It also includes a cleaning mechanism for cleaning the blade surface; The cleaning mechanism includes a threaded rod rotatably mounted in the inner cavity of the second groove. A motor is fixedly connected to one end of the threaded rod, and the motor is fixedly connected to the frame. A slider is slidably mounted in the inner cavity of the second groove. Rotating rods are rotatably connected to both sides of the slider. A cleaning roller is fixedly connected to the outer surface of the rotating rod. A rack is fixedly mounted in the inner cavity of the second groove, and a gear is fixedly connected to the outer surface of the rotating rod. The gear and the rack mesh with each other.

[0008] Preferably, two limiting plates are fixedly installed on one side of the frame, and a limiting groove is formed on one side of the limiting plate. A limiting block is slidably installed in the inner cavity of the limiting groove, and the limiting block is fixedly connected to the rotating rod.

[0009] Preferably, an ear plate is fixedly installed on the outer surface of the frame, and a fixing plate is movably connected to one side of the ear plate. The fixing plate and the ear plate are threadedly connected by bolts.

[0010] Preferably, a collection plate and an installation plate are fixedly installed on both sides of the frame, and a drain pipe is fixedly connected to the bottom of the collection plate.

[0011] Preferably, a plurality of first sealing plates and second sealing plates are fixedly installed in the inner cavity of the first groove, and the blade is rotatably installed between the first sealing plates and the second sealing plates.

[0012] Preferably, two third sealing plates are fixedly installed on one side of the blade, the first sealing plate is located between the two third sealing plates, and a connecting rod is rotatably connected to one side of the blade.

[0013] Preferably, a support block is fixedly installed on the top of the mounting plate, a cylinder is rotatably connected to the top of the support block, a connector is fixedly connected to the output end of the cylinder, and the connector is rotatably connected to the connecting block.

[0014] Preferably, a first connecting frame is fixedly connected to one side of the connecting block, and several connecting rods are rotatably installed in the inner cavity of the first connecting frame.

[0015] Preferably, a second connecting frame is rotatably mounted on the outer surface of the first connecting frame, the second connecting frame is rotatably connected to the mounting plate, and a third groove is provided on one side of the second connecting frame.

[0016] Preferably, a support pad is fixedly installed on the top of the mounting plate, and an insert rod is slidably installed in the inner cavity of the support pad. A fourth groove is formed on the outer surface of the insert rod, and a limiting pad is slidably connected to the outer surface of the fourth groove. The limiting pad is fixedly connected to the mounting plate, and the insert rod has the same diameter as the third groove.

[0017] The advantages of this invention are: 1. This invention uses a motor output shaft to drive a threaded rod to rotate. When the threaded rod rotates, it works in conjunction with a second groove to limit the slider, allowing the slider to slide along the second groove. As the slider slides, it drives a gear to move. The gear is driven to rotate by a rack. The rotation of the slider drives a rotating rod to rotate, which in turn drives a cleaning roller to rotate on the outer surface of the blade, thus cleaning the blade surface. In order to ensure that the cleaning roller can closely adhere to the blade surface when sliding, a limiting groove is used to limit the rotating rod. During use, the rotating rod drives the limiting block to slide within the limiting groove. This allows the cleaning roller to closely adhere to the blade surface, increasing the cleaning effect of the cleaning roller on the dust on the blade surface.

[0018] 2. In this invention, the cylinder output end retracts to pull the connector, which in turn pulls the connecting block. The second connecting frame limits the first connecting frame, causing it to move downwards. The first connecting frame pushes the connecting rod, which in turn pushes the blade, thus opening the blade. When closing the blade, the support block output end extends to push the connector and connecting block, which can move the first connecting frame away from the frame. The first connecting frame drives the connecting rod to pull the blade to rotate, thus closing the blade.

[0019] 3. The present invention rotates the second connecting frame to drive the first connecting frame to open the blade. Then, the third groove and the insertion rod are on the same horizontal plane. The insertion rod is inserted into the inner cavity of the third groove to achieve the purpose of unfolding and fixing the blade. In use, the fourth groove will slide in the inner cavity of the limiting pad. This can prevent the insertion rod support pad from separating and being lost. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 This is a schematic diagram of the frame structure according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a gear drive structure according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a blade connection structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a cylinder connection structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the insertion rod structure according to an embodiment of the present invention.

[0022] In the diagram: 1. Frame; 11. Ear plate; 12. Fixing plate; 13. Bolt; 14. Collection plate; 15. Leakage pipe; 16. Mounting plate; 2. First groove; 21. Second groove; 22. Rack; 23. Threaded rod; 24. Motor; 25. Slider; 26. Gear; 27. Rotating rod; 28. Cleaning roller; 29. ​​Limiting plate; 291. Limiting groove; 292. Limiting block; 3. First sealing plate; 31. Second sealing plate; 32. Blade; 33. Third sealing plate; 34. Connecting rod; 35. First connecting frame; 4. Support block; 41. Cylinder; 42. Connector; 43. Connecting block; 44. Second connecting frame; 441. Third groove; 45. Support pad; 451. Insert rod; 452. Fourth groove; 453. Limiting pad. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 6 As shown, a rigid-sealed pneumatic louver includes a frame 1. Two first grooves 2 and a second groove 21 are formed on one side of the frame 1. A plurality of blades 32 are rotatably mounted inside the first groove 2. The louver also includes a cleaning mechanism for cleaning the surface of the blades 32. The cleaning mechanism includes a threaded rod 23, which is rotatably mounted inside the second groove 21. One end of the threaded rod 23 is fixedly connected to a motor 24, which is fixedly connected to the frame 1. A slider 25 is slidably mounted inside the second groove 21. Rotating rods 27 are rotatably connected to both sides of the slider 25. A cleaning roller 28 is fixedly connected to the outer surface of the rotating rod 27. A rack 22 is fixedly mounted inside the second groove 21. A gear 26 is fixedly connected to the outer surface of the rotating rod 27, and the gear 26 meshes with the rack 22. Two limiting plates 29 are fixedly installed on one side of the frame 1. A limiting groove 291 is opened on one side of the limiting plate 29. A limiting block 292 is slidably installed in the inner cavity of the limiting groove 291. The limiting block 292 is fixedly connected to the rotating rod 27.

[0025] When using existing venetian blinds, the outer surface of the slats is exposed, and the surface of the slats is prone to accumulating a lot of dust. When the venetian blinds are opened, the air passes over the surface of the slats, and the flowing air can easily bring the dust on the slats into the room.

[0026] In use, the dust on the surface of the blade is cleaned before the blade is opened. During use, the output shaft of the motor 24 drives the threaded rod 23 to rotate. When the threaded rod 23 rotates, it cooperates with the second groove 21 to limit the slider 25, allowing the slider 25 to slide along the second groove 21. When the slider 25 slides, it drives the gear 26 to move. The gear 26 is driven to rotate by the rack 22. When the slider 25 rotates, it drives the rotating rod 27 to rotate. Furthermore, the rotating rod 27 drives the cleaning roller 28 to rotate on the outer surface of the blade 32, thereby cleaning the surface of the blade 32. In order to ensure that the cleaning roller 28 can stick tightly to the surface of the blade 32 when sliding, the rotating rod 27 is limited by the limiting groove 291. During use, the rotating rod 27 drives the limiting block 292 to slide in the inner cavity of the limiting groove 291. This allows the cleaning roller 28 to stick tightly to the surface of the blade 32, increasing the cleaning effect of the cleaning roller 28 on the dust on the surface of the blade 32.

[0027] Furthermore, such as Figure 2 As shown, an ear plate 11 is fixedly installed on the outer surface of the frame 1, and a fixing plate 12 is movably connected to one side of the ear plate 11. The fixing plate 12 and the ear plate 11 are threadedly connected to a bolt 13. A collection plate 14 and an installation plate 16 are fixedly installed on both sides of the frame 1, and a drain pipe 15 is fixedly connected to the bottom of the collection plate 14.

[0028] When using this invention, the fixing plate 12 is fixed when installing the entire louver. First, the ear plate 11 is aligned with the fixing plate 12. Then, the fixing plate 12 and the ear plate 11 are fixed by bolts 13, thereby achieving the fixed installation of the louver. In rainy weather, the blades 32 are closed, and the rainwater falls into the inner cavity of the collection plate 14 and is finally discharged through the drain pipe 15.

[0029] Furthermore, such as Figure 4 As shown, a plurality of first sealing plates 3 and second sealing plates 31 are fixedly installed in the inner cavity of the first groove 2, and the blade 32 is rotatably installed between the first sealing plates 3 and the second sealing plates 31. Two third sealing plates 33 are fixedly installed on one side of the blade 32, and the first sealing plate 3 is located between the two third sealing plates 33. A connecting rod 34 is rotatably connected to one side of the blade 32.

[0030] In use, the blade 32 can be opened by rotating the inner cavity of the first sealing plate 3 and the second sealing plate 31. When the blade 32 is in the closed state, in order to increase the sealing performance of the blade 32, two third sealing plates 33 are placed on both sides of the second sealing plate 31. The two third sealing plates 33 and the blade 32 wrap around the second sealing plate 31, which can prevent light sources from passing between the second sealing plate 31 and the blade 32.

[0031] Furthermore, such asFigure 5 and Figure 6 As shown, a support block 4 is fixedly installed on the top of the mounting plate 16, and a cylinder 41 is rotatably connected to the top of the support block 4. A connector 42 is fixedly connected to the output end of the cylinder 41, and the connector 42 is rotatably connected to the connector block 43. A first connecting frame 35 is fixedly connected to one side of the connecting block 43, and several connecting rods 34 are rotatably installed in the inner cavity of the first connecting frame 35.

[0032] When the present invention is in use, when it is necessary to open the blade 32, the output end of the cylinder 41 retracts and pulls the connector 42, the connector 42 pulls the connecting block 43, and the second connecting frame 44 limits the first connecting frame 35. The first connecting frame 35 will move downward and push the connecting rod 34. The connecting rod 34 further pushes the blade 32, thereby achieving the purpose of opening the blade 32. When closing the blade 32, the output end of the support block 4 extends and pushes the connector 42 and the connecting block 43 to move the first connecting frame 35 away from the frame 1. The first connecting frame 35 drives the connecting rod 34 to pull the blade 32 to rotate, thereby achieving the purpose of closing the blade 32.

[0033] Furthermore, such as Figure 6 As shown, a second connecting frame 44 is rotatably mounted on the outer surface of the first connecting frame 35. The second connecting frame 44 is rotatably connected to the mounting plate 16. A third groove 441 is provided on one side of the second connecting frame 44. A support pad 45 is fixedly installed on the top of the mounting plate 16. A rod 451 is slidably installed in the inner cavity of the support pad 45. A fourth groove 452 is formed on the outer surface of the rod 451. A limiting pad 453 is slidably connected to the outer surface of the fourth groove 452. The limiting pad 453 is fixedly connected to the mounting plate 16. The rod 451 has the same diameter as the third groove 441.

[0034] When using this invention, if the support block 4 cannot be used, the blade 32 needs to be opened manually. First, rotate the second connecting frame 44. During the rotation, the second connecting frame 44 will drive the first connecting frame 35 to open the blade 32. Then, make the third groove 441 and the insertion rod 451 at the same horizontal plane. Insert the insertion rod 451 into the inner cavity of the third groove 441 to achieve the purpose of unfolding and fixing the blade 32. When using, the fourth groove 452 will slide in the inner cavity of the limiting pad 453. This can prevent the insertion rod 451 from separating from the support pad 45 and being lost.

[0035] Working principle: The output shaft of motor 24 drives the threaded rod 23 to rotate. When the threaded rod 23 rotates, it cooperates with the second groove 21 to limit the slider 25, allowing the slider 25 to slide along the second groove 21. When the slider 25 slides, it drives the gear 26 to move. The gear 26 is driven to rotate by the rack 22. When the slider 25 rotates, it drives the rotating rod 27 to rotate. Furthermore, the rotating rod 27 drives the cleaning roller 28 to rotate on the outer surface of the blade 32, thereby cleaning the surface of the blade 32. In order to make the cleaning roller 28 fit tightly against the surface of the blade 32 when sliding, the rotating rod 27 is limited by the limiting groove 291. When in use, the rotating rod 27 will drive the limiting block 292 to slide in the inner cavity of the limiting groove 291. This allows the cleaning roller 28 to fit tightly against the surface of the blade 32, increasing the cleaning effect of the cleaning roller 28 on the dust on the surface of the blade 32.

[0036] The cylinder 41 retracts at its output end, pulling the connector 42. The connector 42 pulls the connecting block 43, and the second connecting frame 44 limits the first connecting frame 35, causing the first connecting frame 35 to move downwards. The first connecting frame 35 pushes the connecting rod 34, which in turn pushes the blade 32, thus opening the blade 32. When closing the blade 32, the support block 4 extends at its output end, pushing the connector 42 and connecting block 43 to move the first connecting frame 35 away from the frame 1. The moving link 34 pulls the blade 32 to rotate, thereby closing the blade 32. By rotating the second connecting frame 44, the second connecting frame 44 drives the first connecting frame 35 to open the blade 32. Then, the third groove 441 and the insertion rod 451 are on the same horizontal plane. Inserting the insertion rod 451 into the inner cavity of the third groove 441 can achieve the purpose of unfolding and fixing the blade 32. During use, the fourth groove 452 will slide in the inner cavity of the limiting pad 453. This can prevent the insertion rod 451 from separating from the support pad 45 and being lost.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A rigid sealing pneumatic louver, comprising a frame (1), wherein two first grooves (2) and a second groove (21) are provided on one side of the frame (1), and a plurality of blades (32) are rotatably installed in the inner cavity of the first groove (2). It also includes a cleaning mechanism for cleaning the surface of the blades (32); Its features are: The cleaning mechanism includes a threaded rod (23), which is rotatably installed in the inner cavity of the second groove (21). One end of the threaded rod (23) is fixedly connected to a motor (24), which is fixedly connected to the frame (1). A slider (25) is slidably installed in the inner cavity of the second groove (21). Rotating rods (27) are rotatably connected to both sides of the slider (25). A cleaning roller (28) is fixedly connected to the outer surface of the rotating rod (27). A rack (22) is fixedly installed in the inner cavity of the second groove (21). A gear (26) is fixedly connected to the outer surface of the rotating rod (27). The gear (26) meshes with the rack (22).

2. The rigid-sealed pneumatic louver according to claim 1, characterized in that: Two limiting plates (29) are fixedly installed on one side of the frame (1). A limiting groove (291) is opened on one side of the limiting plate (29). A limiting block (292) is slidably installed in the inner cavity of the limiting groove (291). The limiting block (292) is fixedly connected to the rotating rod (27).

3. A rigid-sealed pneumatic louver according to claim 2, characterized in that: An ear plate (11) is fixedly installed on the outer surface of the frame (1). A fixing plate (12) is movably connected to one side of the ear plate (11). The fixing plate (12) and the ear plate (11) are threadedly connected by a bolt (13).

4. A rigid-sealed pneumatic louver according to claim 3, characterized in that: A collection plate (14) and an installation plate (16) are fixedly installed on both sides of the frame (1), and a drain pipe (15) is fixedly connected to the bottom of the collection plate (14).

5. A rigid-sealed pneumatic louver according to claim 1, characterized in that: The first groove (2) has a plurality of first sealing plates (3) and second sealing plates (31) fixedly installed in its inner cavity, and the blade (32) is rotatably installed between the first sealing plates (3) and the second sealing plates (31).

6. A rigid-sealed pneumatic louver according to claim 5, characterized in that: Two third sealing plates (33) are fixedly installed on one side of the blade (32), and the first sealing plate (3) is located between the two third sealing plates (33). A connecting rod (34) is rotatably connected to one side of the blade (32).

7. A rigid-sealed pneumatic louver according to claim 4, characterized in that: A support block (4) is fixedly installed on the top of the mounting plate (16). A cylinder (41) is rotatably connected to the top of the support block (4). A connector (42) is fixedly connected to the output end of the cylinder (41). The connector (42) is rotatably connected to the connector block (43).

8. A rigid-sealed pneumatic louver according to claim 7, characterized in that: The first connecting frame (35) is fixedly connected to one side of the connecting block (43), and several connecting rods (34) are rotatably installed in the inner cavity of the first connecting frame (35).

9. A rigid-sealed pneumatic louver according to claim 8, characterized in that: The second connecting frame (44) is rotatably mounted on the outer surface of the first connecting frame (35). The second connecting frame (44) is rotatably connected to the mounting plate (16). A third groove (441) is provided on one side of the second connecting frame (44).

10. A rigid-sealed pneumatic louver according to claim 9, characterized in that: A support pad (45) is fixedly installed on the top of the mounting plate (16). A plug rod (451) is slidably installed in the inner cavity of the support pad (45). A fourth groove (452) is opened on the outer surface of the plug rod (451). A limiting pad (453) is slidably connected to the outer surface of the fourth groove (452). The limiting pad (453) is fixedly connected to the mounting plate (16). The plug rod (451) has the same diameter as the third groove (441).