Flexible air bag cut-off device
The patented airbag sleeve connection, which connects a flexible, stretchable fan-shaped plate to the airbag sleeve, uses an air pump to inflate and deform the airbag, solving the problem of airbag bursting and effectively intercepting glass shards and sharp objects, thus improving the durability and safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-15
AI Technical Summary
Existing flexible airbag interception devices are prone to bursting when exposed to glass shards or sharp objects, resulting in device damage.
A flexible, stretchable fan-shaped plate is connected to the airbag sleeve. The fan-shaped plate is deformed and assembled by an air pump to form multiple interception holes to intercept foreign objects and protect the structural integrity of the airbag sleeve.
It effectively prevents glass shards or sharp objects from contacting the airbag sleeve, avoiding airbag rupture and improving the device's durability and safety.
Smart Images

Figure CN224245737U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of interception device technology, and in particular to a flexible airbag interception device. Background Technology
[0002] In industrial pipelines, fluid transport systems, or environmental protection projects, flow control devices are the core components for controlling fluid flow. Flexible flow control devices are one type of such device, and they have many advantages, such as self-adaptive sealing, strong anti-clogging ability, corrosion resistance, and wear resistance.
[0003] The core of the flexible airbag interception device is to achieve dynamic interception or regulation of fluid by inflating and deforming the flexible airbag. In practical applications, water often contains glass shards or other sharp objects, which may cause the airbag to burst upon contact with them. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flexible airbag interception device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A flexible airbag interception device includes an interception tube. Airbag sleeves (first type) are provided on both sides of the inner wall of the interception tube, and airbag sleeves (second type) are provided on the other two sides of the inner wall of the interception tube. Flexible stretchable fan-shaped plates (first type) are provided on both sides of the inner wall of the interception tube at one end of each airbag sleeve (first type), and flexible stretchable fan-shaped plates (second type) are provided on the other two sides of the inner wall of the interception tube at one end of each airbag sleeve (second type). Flexible stretchable fan-shaped plates (first type) and airbag sleeves (first type) are fixedly connected by a connecting plate (first type), and flexible stretchable fan-shaped plates (second type) are fixedly connected by a connecting plate (second type). Several interception holes (first type) and (second type) are respectively provided on the flexible stretchable fan-shaped plates (first type) and (second type).
[0007] In addition, a preferred structure is that air pumps are fixedly installed on both sides of the outer wall of the intercepting tube, and output pipe one and output pipe two are respectively provided at both ends of the air pumps.
[0008] In addition, in a preferred configuration, the first output pipe and the second output pipe are respectively connected to the first airbag sleeve and the second airbag sleeve.
[0009] In addition, a preferred structure is that each of the two flexible stretchable sector plates has a lightweight iron block at one opposite end.
[0010] Furthermore, in a preferred configuration, each of the two flexible stretchable sector plates has a lightweight magnet at one of its opposite ends.
[0011] In addition, a preferred structure is that both ends of the intercepting pipe are provided with mounting flanges.
[0012] The beneficial effects of this utility model are as follows:
[0013] In this invention, when the first and second airbag sleeves are inflated and deformed, the first and second flexible stretching sector plates move accordingly and then come together. Glass shards or some sharp objects will not come into contact with the first and second airbag sleeves due to the blocking effect of the first and second interception holes, thus protecting the safety of the first and second airbag sleeves. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of the flexible airbag interception device proposed in this utility model when the airbag sleeve is not inflated;
[0015] Figure 2 This is a schematic diagram of the structure of the flexible airbag interception device proposed in this utility model when the airbag sleeve is inflated;
[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the airbag sleeve of the flexible airbag interception device proposed in this utility model when it is not inflated;
[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the airbag sleeve of the flexible airbag interception device proposed in this utility model when it expands;
[0018] Figure 5 This is a schematic diagram of the flexible stretching fan-shaped plate of a flexible airbag interception device proposed in this utility model.
[0019] Figure 6 This is a schematic diagram of the flexible stretching fan-shaped plate structure of a flexible airbag interception device proposed in this utility model.
[0020] In the diagram: 1. Cut-off pipe body, 2. Mounting flange, 3. Air pump, 31. Output pipe one, 32. Output pipe two, 4. Flexible stretching sector plate one, 41. Connecting plate one, 42. Cut-off hole one, 43. Lightweight iron block, 5. Flexible stretching sector plate two, 51. Connecting plate two, 52. Cut-off hole two, 53. Lightweight magnet, 6. Airbag sleeve one, 7. Airbag sleeve two. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figure 1-6A flexible airbag interception device includes an interception tube 1, with airbag sleeves 6 on both sides of the inner wall of the interception tube 1 and airbag sleeves 7 on the other two sides of the inner wall of the interception tube 1. Flexible stretching fan-shaped plates 4 are located at one end of airbag sleeves 6 on both sides of the inner wall of the interception tube 1, and flexible stretching fan-shaped plates 5 are located at one end of airbag sleeves 7 on the other two sides of the inner wall of the interception tube 1. Flexible stretching fan-shaped plates 4 and 6 are fixedly connected by connecting plates 41, and flexible stretching fan-shaped plates 5 and 7 are fixedly connected by connecting plates 51. Several interception holes 42 and 52 are respectively opened on the flexible stretching fan-shaped plates 4 and 5.
[0023] Among them, air pumps 3 are fixedly installed on both sides of the outer wall of the intercepting tube 1, and output pipe 1 31 and output pipe 2 32 are respectively provided at both ends of the air pump 3.
[0024] At the same time, output pipe 31 and output pipe 32 are connected to airbag sleeve 6 and airbag sleeve 7 respectively. The air pump 3 inflates airbag sleeve 6 and airbag sleeve 7 through output pipe 31 and output pipe 32, causing airbag sleeve 6 and airbag sleeve 7 to be inflated and deformed.
[0025] Furthermore, lightweight iron blocks 43 are provided at opposite ends of the two flexible stretchable sector plates 4.
[0026] Meanwhile, lightweight magnets 53 are provided at opposite ends of the two flexible stretching sector plates 5. The lightweight magnets 53 attract the lightweight iron block 43, thus realizing the splicing of the flexible stretching sector plate 4 and the flexible stretching sector plate 5.
[0027] Furthermore, both ends of the intercepting pipe body 1 are equipped with mounting flanges 2, and the intercepting pipe body 1 is installed through the mounting flanges 2.
[0028] In this embodiment, the intercepting pipe 1 is installed at the required location via the mounting flange 2. Then, when fluid needs to be blocked, the two air pumps 3 first inflate the two airbag sleeves 6 through the two output pipes 31. The two airbag sleeves 6 deform upon inflation and come together. At this time, because the flexible stretching fan-shaped plate 4 is fixedly connected to the airbag sleeves 6 through the connecting plate 41, the flexible stretching fan-shaped plate 4 will be stretched, causing the two lightweight iron blocks 43 to come into contact. Then, the two air pumps 3 inflate the two airbag sleeves 7 through the two output pipes 32. The two airbag sleeves 2 7 are inflated and deformed, and together with the other two airbag sleeves 1 6, they block the intercepting tube 1. Since the flexible stretching sector plate 2 5 and the airbag sleeve 2 7 are connected and fixed by the connecting plate 2 51, the flexible stretching sector plate 2 5 5 will be stretched, causing the two lightweight magnets 53 to move towards each other, and then attract the two lightweight iron blocks 43 respectively, completing the splicing of the flexible stretching sector plate 1 4 and the flexible stretching sector plate 2 5. Glass shards or other sharp objects will not come into contact with the airbag sleeves 1 6 and 2 7 under the interception effect of the intercepting hole 1 42 and the intercepting hole 2 52.
[0029] In this invention, when the airbag sleeve 1 6 and the airbag sleeve 2 7 are inflated and deformed, the flexible stretching sector plate 1 4 and the flexible stretching sector plate 2 5 move accordingly and then fit together. Glass shards or some sharp objects will not come into contact with the airbag sleeve 1 6 and the airbag sleeve 2 7 due to the blocking effect of the interception hole 1 42 and the interception hole 2 52, thereby protecting the safety of the airbag sleeve 1 6 and the airbag sleeve 2 7.
[0030] 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 flexible airbag interception device, comprising an interception tube (1), characterized in that, The inner wall of the intercepting tube (1) is provided with airbag sleeve one (6) on both sides, and airbag sleeve two (7) on the other two sides. Flexible stretching fan-shaped plate one (4) is provided on both sides of the inner wall of the intercepting tube (1) at one end of airbag sleeve one (6), and flexible stretching fan-shaped plate two (5) is provided on the other two sides of the inner wall of the intercepting tube (1) at one end of airbag sleeve two (7). Flexible stretching fan-shaped plate one (4) and airbag sleeve one (6) are fixedly connected by connecting plate one (41), and flexible stretching fan-shaped plate two (5) and airbag sleeve two (7) are fixedly connected by connecting plate two (51). Several intercepting holes one (42) and intercepting holes two (52) are respectively opened on flexible stretching fan-shaped plate one (4) and flexible stretching fan-shaped plate two (5).
2. The flexible airbag interception device according to claim 1, characterized in that, Air pumps (3) are fixedly installed on both sides of the outer wall of the intercepting tube (1), and output pipe one (31) and output pipe two (32) are respectively provided at both ends of the air pump (3).
3. The flexible airbag interception device according to claim 2, characterized in that, The output tube one (31) and output tube two (32) are respectively connected to airbag sleeve one (6) and airbag sleeve two (7).
4. The flexible airbag interception device according to claim 1, characterized in that, Lightweight iron blocks (43) are provided at opposite ends of the two flexible stretchable sector plates (4).
5. The flexible airbag interception device according to claim 1, characterized in that, Lightweight magnets (53) are provided at opposite ends of the two flexible stretchable fan-shaped plates (5).
6. The flexible airbag interception device according to claim 1, characterized in that, The intercepting pipe (1) is provided with mounting flanges (2) at both ends.