Self-stabilization type water plugging air bag

Abstract

The utility model relates to a self-stabilizing type water plugging air bag which comprises an air bag body, one end of the air bag body is provided with a conical compression assembly, the conical compression assembly comprises a hinge ring and a plurality of steel rods hinged to the hinge ring in a radiation mode, and after the steel rods are evenly radiated, the two sides of the steel rods are connected with rubber films to form conical compression faces. The outer ends of the steel rods are connected with annular rubber sleeves, an inflation nozzle is arranged at the end, provided with the conical compression assembly, of the air bag body, the inflation nozzle is connected through an inflation pipe and then penetrates out of the hinge ring, and the inflation pipe is connected with the hinge ring in a sealed mode. The utility model discloses can block the inspection well upstream and also can block the inspection well downstream, and can realize self-stabilization limit, use scene is wide, safety and reliability are high.

Description

Technical Field

[0001] This utility model relates to the field of pipeline airbag technology, specifically a self-stabilizing water-blocking airbag. Background Technology

[0002] Currently, water-blocking airbags are widely used in municipal drainage network operation and maintenance, pipeline repair, and other scenarios. However, if the airbag leaks or becomes unstable during the sealing process, it can cause personal injury such as drowning or poisoning and suffocation to downstream workers. Therefore, sealing stability is a crucial technical indicator for water-blocking airbags. Currently, the industry generally uses steel wire ropes to traction and fix the airbag to ground anchor points to prevent instability. However, this method requires the airbag to be installed at the downstream pipe opening of the inspection well; otherwise, steel wire rope traction is impossible, which places certain requirements on the application scenario. Utility Model Content

[0003] The purpose of this invention is to provide a self-stabilizing water-blocking airbag. This invention can block both the upstream and downstream of a manhole and can achieve self-stabilizing limit. It has a wide range of applications and is highly safe and reliable.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A self-stabilizing water-blocking airbag includes an airbag body. One end of the airbag body is provided with a conical pressure-bearing component. The conical pressure-bearing component includes a hinge ring and multiple steel rods radially hinged to the hinge ring. The multiple steel rods are evenly radiated and connected to rubber membranes on both sides to form a conical pressure-bearing surface. The outer ends of the multiple steel rods are connected to an annular rubber sleeve. The airbag body is provided with an inflation nozzle at the end where the conical pressure-bearing component is provided. The inflation nozzle is connected through an inflation tube and passes through the hinge ring. The inflation tube is sealed to the hinge ring.

[0006] Preferably, the annular rubber sleeve is heat-fused to the airbag body so that the airbag body, the conical pressure surface, and the annular rubber sleeve form an integral structure.

[0007] Preferably, the taper of the conical pressure surface is between 160° and 170°.

[0008] Preferably, both ends of the airbag body are provided with inflation nozzles.

[0009] Preferably, the rubber membrane is heat-fused to the annular rubber sleeve.

[0010] Preferably, the steel rod is made of stainless steel.

[0011] Preferably, the airbag body is cylindrical.

[0012] Preferably, the included angle between two adjacent steel rods is no greater than 5°.

[0013] Preferably, the outer surface of the airbag body is covered with a wear-resistant coating.

[0014] Preferably, the hinge ring has reinforcing ribs inside.

[0015] Compared with the prior art, the technical solution of this application has the following technical effects:

[0016] 1. This utility model can block both the upstream and downstream of the inspection well, and can achieve self-stabilizing limit. It has a wide range of applications and high safety and reliability.

[0017] 2. This utility model has a wide range of applications, and can be used for sealing both upstream and downstream pipelines in inspection wells. It offers high safety and reliability, can withstand high water heads, and is simple to use and maintain. Attached Figure Description

[0018] 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 protection scope of the present utility model.

[0019] Figure 1 This is a schematic diagram of the structure of one embodiment of the present invention.

[0020] Figure 2 for Figure 1 Enlarged structural diagram of section A in the middle.

[0021] Figure 3 This is a schematic diagram of the conical pressure-bearing component in this utility model.

[0022] Figure 4 This is a schematic diagram of another embodiment of the present invention.

[0023] In the diagram: 1. Airbag body; 2. Conical pressure-bearing component; 21. Hinge ring; 22. Steel rod; 23. Annular rubber sleeve; 24. Rubber diaphragm; 25. Inflation nozzle; 26. Conical pressure-bearing surface. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] As a preferred embodiment of this utility model, see attached... Figures 1-3As shown: This embodiment provides a self-stabilizing water-blocking airbag, including an airbag body 1. One end of the airbag body 1 is provided with a conical pressure-bearing component 2. The conical pressure-bearing component 2 includes a hinge ring 21 and multiple steel rods 22 radially hinged to the hinge ring 21. The multiple steel rods 22 are evenly radiated and connected to rubber membranes 24 on both sides to form a conical pressure-bearing surface 26. The outer ends of the multiple steel rods are connected to an annular rubber sleeve 23. The airbag body 1 is provided with an inflation nozzle 25 at the end where the conical pressure-bearing component 2 is provided. The inflation nozzle 25 is connected through an inflation tube and passes through the hinge ring 21. The inflation tube is sealed to the hinge ring 21.

[0026] In the above embodiment, the annular rubber sleeve 23 is heat-fused to the airbag body 1, so that the airbag body 1, the conical pressure-bearing surface 26, and the annular rubber sleeve 23 form an integral structure. This embodiment can improve the strength and sealing of the overall structure, reduce the risk of leakage caused by loosening between parts, and enhance durability and reliability.

[0027] In a preferred embodiment, the taper of the conical pressure-bearing surface 26 is between 160° and 170°. This taper range helps to optimize pressure distribution, ensure stability and adaptability in different application scenarios, and also improve water-blocking efficiency.

[0028] In some preferred embodiments, such as Figure 1 As shown, both ends of the airbag body 1 are provided with inflation nozzles.

[0029] In some preferred embodiments, the rubber membrane is heat-fused to the annular rubber sleeve 23.

[0030] In some preferred embodiments, the steel rod 22 is made of stainless steel. Stainless steel has excellent corrosion resistance and is particularly suitable for use in complex environments to extend equipment life and reduce maintenance costs. In this embodiment, the steel rod 22 is made of stainless steel to enhance its corrosion resistance and extend its service life.

[0031] In some preferred embodiments, in order to better fit the airbag body in confined spaces such as pipes and provide a more effective sealing effect, as well as to facilitate storage and transportation, the airbag body 1 in this embodiment is cylindrical; the outer surface of the airbag body 1 is covered with a wear-resistant coating. Adding a wear-resistant coating to the outer surface can effectively prevent the airbag from being worn by contact with rough surfaces during use, extend its service life, and ensure the stable performance of the airbag in harsh environments.

[0032] In some preferred embodiments, such as Figure 3As shown, the included angle between two adjacent steel rods 22 is no greater than 5°. This embodiment uses a smaller included angle to make the conical pressure surface smoother and more continuous, which helps to evenly distribute pressure, reduce local stress concentration, and enhance the stability and safety of the structure.

[0033] In some preferred embodiments, the hinge ring 21 is provided with reinforcing ribs inside. This embodiment, by providing a reinforcing rib structure inside the hinge ring, can enhance the mechanical strength and stability of the hinge ring, ensuring that the conical pressure-bearing assembly can maintain structural integrity under high pressure, and improving overall durability and reliability.

[0034] The working principle of the entire device is as follows:

[0035] like Figure 1 and Figure 4 As shown, when using it, first place the self-stabilizing airbag at the upstream or downstream pipe opening of the inspection well according to the actual needs and the conventional airbag operation requirements, ensuring that the conical pressure surface is the water-facing surface. When sealing the downstream of the inspection well, connect the inflation pipe to the inflation nozzle at one end of the inspection well.

[0036] Then the airbag is inflated, so that the annular rubber sleeve fits tightly against the inner wall of the pipe.

[0037] As the water level in the pipe slowly rises and the water pressure gradually increases, the water pressure is converted into friction between the annular rubber sleeve and the pipe wall through the conical pressure-bearing surface, thus balancing the water pressure. This is the physical and mechanical phenomenon of "self-locking," thereby stabilizing the water-blocking airbag.

[0038] You can try releasing the air pressure in the airbag body to check for leaks, to ensure that the conical structure surface is self-stabilizing, and then re-inflate the airbag body as a second layer of protection for the water-blocking airbag.

[0039] During use, please note the following: Before and after each use, conduct a thorough visual inspection of the airbag, including checking for wear, cracks, scratches, or any other type of damage, paying particular attention to the condition of connections, seams, and the inflation nozzle. After use, promptly clean the surface of the airbag to remove dirt, sand, and other impurities. It can be rinsed with clean water and gently wiped clean with a soft cloth. Avoid using corrosive or abrasive cleaning agents to prevent damage to the airbag material. After cleaning, the airbag must be thoroughly dried before storage to prevent mold growth or material rot. The airbag should be placed in a well-ventilated area to air dry naturally, avoiding direct sunlight or proximity to heat sources to prevent material aging. Even if not used frequently, the airbag should be inflated periodically (e.g., quarterly) to check for leaks and the integrity of the overall structure. This helps to identify potential problems early and take appropriate action.

[0040] For tapered compression components, steel rods, etc., special attention needs to be paid to the condition of these components to ensure that they function properly. For example, lubricate the hinge parts and check the steel rods for signs of rust.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A self-stabilizing water-blocking airbag, characterized in that: The airbag body (1) includes a conical pressure-bearing component (2) at one end. The conical pressure-bearing component (2) includes a hinge ring (21) and multiple steel rods (22) radially hinged to the hinge ring (21). The multiple steel rods (22) are evenly radiated and connected to rubber membranes (24) on both sides to form a conical pressure-bearing surface (26). The outer ends of the multiple steel rods are connected to annular rubber sleeves (23). The airbag body (1) is provided with an inflation nozzle (25) at one end where the conical pressure-bearing component (2) is provided. The inflation nozzle (25) is connected through an inflation tube and passes through the hinge ring (21). The inflation tube is sealed to the hinge ring (21).

2. The self-stabilizing water-blocking airbag according to claim 1, characterized in that: The annular rubber sleeve (23) is heat-fused to the airbag body (1) so that the airbag body (1), the conical pressure surface (26) and the annular rubber sleeve (23) form an integral structure.

3. The self-stabilizing water-blocking airbag according to claim 1, characterized in that: The taper of the conical pressure surface (26) is between 160° and 170°.

4. The self-stabilizing water-blocking airbag according to claim 1, characterized in that: Both ends of the airbag body (1) are provided with inflation nozzles.

5. A self-stabilizing water-blocking airbag according to claim 1, characterized in that: The rubber membrane (24) is heat-fused to the annular rubber sleeve (23).

6. A self-stabilizing water-blocking airbag according to claim 1, characterized in that: The steel rod (22) is made of stainless steel.

7. A self-stabilizing water-blocking airbag according to claim 1, characterized in that: The airbag body (1) is cylindrical.

8. A self-stabilizing water-blocking airbag according to claim 1, characterized in that: The included angle between two adjacent steel rods (22) shall not exceed 5°.

9. A self-stabilizing water-blocking airbag according to claim 1, characterized in that: The outer surface of the airbag body (1) is covered with a wear-resistant coating.

10. A self-stabilizing water-blocking airbag according to claim 1, characterized in that: The hinge ring (21) is provided with reinforcing ribs inside.

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