Airbag-type municipal pipeline plugging device

Abstract

The utility model relates to pipeline plugging technical field especially air bag formula municipal administration pipeline plugging equipment, including air bag, the air bag is annular structure, the air bag middle part through -hole sealing connection has connecting rod, the front end of connecting rod is connected with the protection board, the protection board is circular structure, the air bag end part is connected with the air injection valve and exhaust valve and is provided with, the utility model prevents the condition of causing the air bag to be punctured to the effect of guaranteeing the plugging, prolongs the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of pipeline sealing technology, and in particular to an airbag-type municipal pipeline sealing device. Background Technology

[0002] Pipeline sealing can be categorized into mechanical sealing, brickwork sealing, flexible sealing, and chemical sealing, depending on the method used. Flexible sealing involves using an inflatable device made of rubber or polymer materials. This device expands and comes into contact with the inside of the pipeline, utilizing the friction generated between the expanded device and the pipeline wall to achieve the sealing effect.

[0003] However, because there may be debris in the pipe, the sharp parts of the debris can easily move under the action of water flow. When the sharp parts come into contact with the airbag, they may puncture the airbag, causing the sealing to fail and affecting the service life of the airbag sealing. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where airbags are easily punctured, leading to sealing failure and affecting the service life of airbag sealing devices. Therefore, this invention proposes an airbag-type municipal pipeline sealing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a bladder-type municipal pipeline sealing device, including a bladder with an annular structure. A connecting rod is sealed and connected to the central through hole of the bladder. A protective plate with a circular structure is connected to the front end of the connecting rod. An air injection valve and an air exhaust valve are connected to the end of the bladder.

[0007] Preferably, a connecting block is fixedly connected to the middle of one side of the protective plate, and a connecting groove is opened at the front end of the connecting rod, into which the connecting block is inserted.

[0008] Preferably, a fixing lug is fixedly connected to the front end of the connecting rod, a fixing hole is provided on the fixing lug, and a fixing post is connected to the connecting rod through an adjustment mechanism, with the upper end of the fixing post located inside the fixing hole.

[0009] Preferably, the connecting rod has an installation cavity, a spring is fixedly connected to the bottom wall of the installation cavity, and a fixing post is fixedly connected to the upper end of the spring.

[0010] Preferably, the spring is a stainless steel spring.

[0011] Preferably, the mounting cavity has a cylindrical structure, and the fixing post abuts against the inner wall of the mounting cavity.

[0012] Preferably, the inner ring wall of the airbag is provided with multiple mounting grooves at equal intervals, the mounting grooves are in the form of a ring structure, and multiple connecting rings are fixedly connected at equal intervals on the connecting rod, the connecting rings being located in the mounting grooves and fixedly connected to the inner wall of the mounting grooves.

[0013] Preferably, the protective plate is made of ABS resin material.

[0014] The present invention proposes an airbag-type municipal pipeline sealing device, which has the following advantages: by installing a protective plate at the front end of the airbag that matches the pipeline to be blocked, the front end of the airbag is protected, and sharp parts in the pipeline such as tree branches, wires, and steel bars come into contact with the protective plate, preventing puncture of the airbag, thereby ensuring the sealing effect and extending the service life of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an airbag-type municipal pipeline sealing device proposed in this utility model;

[0016] Figure 2 This is a three-dimensional sectional view of an airbag-type municipal pipeline sealing device proposed in this utility model;

[0017] Figure 3 This is an exploded view of an airbag-type municipal pipeline sealing device proposed in this utility model;

[0018] Figure 4 This is a three-dimensional sectional view of the airbag portion of an airbag-type municipal pipeline sealing device proposed in this utility model.

[0019] Figure 5 This utility model proposes an airbag-type municipal pipeline sealing device. Figure 2 Enlarged view of section A in the middle;

[0020] Figure 6 This utility model proposes an airbag-type municipal pipeline sealing device. Figure 3 Enlarged view of section B.

[0021] In the diagram: 1. Airbag; 2. Protective plate; 3. Connecting rod; 4. Connecting block; 5. Inflation valve; 6. Exhaust valve; 7. Connecting ring; 8. Connecting groove; 9. Fixing ear; 10. Fixing post; 11. Mounting cavity; 12. Spring; 13. Fixing hole; 14. Mounting groove. Detailed Implementation

[0022] 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.

[0023] Example 1: Refer to Figure 1-4 An airbag-type municipal pipeline sealing device includes an airbag 1, which has an annular structure. A connecting rod 3 is sealed and connected to a through hole in the middle of the airbag 1. A protective plate 2 is connected to the front end of the connecting rod 3. The protective plate 2 has a circular structure. An air injection valve 5 and an air exhaust valve 6 are connected to the end of the airbag 1. The air injection valve 5 is a one-way valve. The airbag 1 is inflated by an air inflation device connected to the air injection valve 5. The air exhaust valve 6 is used to expel the air from the airbag 1, making it easy to remove the device from the pipeline.

[0024] By installing a protective plate 2 at the front end of the airbag 1 that matches the blocked pipe, the front end of the airbag 1 is protected, so that sharp parts in the pipe such as tree branches, wires and steel bars come into contact with the protective plate 2, preventing the airbag 1 from being punctured, thus ensuring the sealing effect and extending the service life of the equipment.

[0025] Example 2: Due to the different inner diameters of various pipes, and in Example 1, the fixed size of the protective plate 2 only allows for sealing pipes of a fixed size. When the pipe size is larger than the protective plate 2, a gap is created between the protective plate 2 and the inner wall of the pipe. Sharp parts of debris can easily pass through this gap and puncture the airbag 1, failing to protect the airbag 1 and affecting the adaptability of the equipment. (Refer to...) Figure 1-5 In another preferred embodiment of this utility model, based on embodiment 1, a connecting block 4 is fixedly connected to the middle position of one side of the protective plate 2, and a connecting groove 8 is opened at the front end of the connecting rod 3. The connecting block 4 is inserted into the connecting groove 8. By using the connecting block 4 and the connecting groove 8, the protective plate 2 and the connecting rod 3 are connected, so that the protective plate 2 can be disassembled. When sealing different pipes, it is possible to replace the protective plate 2 with one of different diameters to protect the airbag 1 part, thereby improving the adaptability of the equipment.

[0026] Example 3: In Example 2, because there was no axial restraint between the connecting rod 3 and the connecting block 4, it is easy for part of the protective plate 2 to remain inside the pipe when the equipment is disassembled from the pipe. (Refer to...) Figure 1-6 As another preferred embodiment of this utility model, based on embodiment 2, a fixing ear 9 is fixedly connected to the front end of the connecting rod 3, and a fixing hole 13 is provided on the fixing ear 9. A fixing column 10 is connected to the connecting rod 3 through an adjustment mechanism. The upper end of the fixing column 10 is located in the fixing hole 13, which plays a connecting role between the connecting block 4 and the connecting rod 3. Thus, when the airbag 1 is pulled out, the connecting block 4 will be moved together to remove the protective plate 2.

[0027] The connecting rod 3 has an installation cavity 11. A spring 12 is fixedly connected to the bottom wall of the installation cavity 11. A fixing post 10 is fixedly connected to the upper end of the spring 12. Since there is water in the pipe, the spring 12 is a stainless steel spring to prevent the spring 12 from rusting and to extend the service life of the spring 12. Since the spring 12 needs to be compressed during disassembly, it is ensured that the fixing post 10 is not easy to fall out of the fixing hole 13 during use.

[0028] The mounting cavity 11 has a cylindrical structure, and the fixing post 10 abuts against the inner wall of the mounting cavity 11, which helps to prevent mud and sand from entering the mounting cavity 11. If mud and sand enter, they will clog around the spring 12, which can easily cause the spring 12 to jam.

[0029] During the sealing process, firstly, select a protective plate 2 of a matching size according to the inner diameter of the pipe to be sealed. Using a screwdriver or tree branch smaller than the size of the fixing hole 13, push the fixing 10 to move it into the installation cavity 11. Then, insert the connecting block 4 into the connecting groove 8. When a small part of the installation cavity 11 enters the connecting groove 8, pull out the screwdriver or tree branch. The upper part of the fixing post 10 will abut against the inner wall of the connecting groove 8. Continue to insert the connecting plate 4. When the fixing post 10 is aligned with the fixing hole 13, under the restoring force of the spring 12, the fixing post 10 is inserted into the fixing hole 13, fixing the protective plate 2. Then, place the equipment into the pipe. By using an air pump connected to the air injection valve 5, the air pump can be used to inflate the air bag 1, causing the inside of the air bag 1 to abut against the pipe, sealing the pipe.

[0030] Example 4: In Example 3, the water in the pipeline generates a thrust on the protective plate 2, causing the connecting rod 3 to receive an axial force. Since the connection area between the connecting rod 3 and the airbag 1 is small, it is prone to detachment from the airbag 1 when subjected to axial force. (Refer to...) Figure 1-6 In another preferred embodiment of this utility model, based on embodiment 3, multiple mounting grooves 14 are equally spaced on the inner ring wall of the airbag 1. The mounting grooves 14 are annular in structure. The connecting rings 7 are located in the mounting grooves 14 and are fixedly connected to the inner wall of the mounting grooves 14. By adopting the design of the connecting rings 7 and the mounting grooves 14, when the connecting rod 3 is subjected to axial force, the connecting rings 7 will act on the mounting grooves 14, which increases the contact area and relieves the local pressure. This helps to prevent the connecting rod 3 from falling off the airbag 1. At the same time, multiple connecting rings 7 are fixedly connected at equal distances on the connecting rod 3. The equidistant distribution forms a strong internal skeleton that can jointly resist external thrust, which helps to improve the overall structural strength.

[0031] The protective plate 2 is made of ABS resin material. ABS resin material has good strength and toughness, and can withstand the impact of water flow and collision with debris. It is not easy to break or deform, and can effectively protect the airbag 1. In addition, due to the complex environment in the pipeline, the water is prone to acidity or alkalinity. ABS resin material has good corrosion resistance, which helps to extend its service life.

[0032] 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 bladder-type municipal pipeline sealing device, comprising a bladder (1), characterized in that, The airbag (1) has a ring structure. A connecting rod (3) is sealed and connected to the through hole in the middle of the airbag (1). A protective plate (2) is connected to the front end of the connecting rod (3). The protective plate (2) has a circular structure. An air injection valve (5) and an air exhaust valve (6) are connected to the end of the airbag (1).

2. The airbag-type municipal pipeline sealing device according to claim 1, characterized in that, A connecting block (4) is fixedly connected to the middle of one side of the protective plate (2), and a connecting groove (8) is opened at the front end of the connecting rod (3), and the connecting block (4) is inserted into the connecting groove (8).

3. The airbag-type municipal pipeline sealing device according to claim 2, characterized in that, The connecting rod (3) is fixedly connected to a fixing ear (9) at its front end. A fixing hole (13) is provided on the fixing ear (9). A fixing column (10) is connected to the connecting rod (3) through an adjustment mechanism. The upper end of the fixing column (10) is located inside the fixing hole (13).

4. The airbag-type municipal pipeline sealing device according to claim 3, characterized in that, The connecting rod (3) has an installation cavity (11), and a spring (12) is fixedly connected to the bottom wall of the installation cavity (11). A fixing post (10) is fixedly connected to the upper end of the spring (12).

5. The airbag-type municipal pipeline sealing device according to claim 4, characterized in that, The spring (12) is a stainless steel spring.

6. The airbag-type municipal pipeline sealing device according to claim 4, characterized in that, The mounting cavity (11) has a cylindrical structure, and the fixing column (10) abuts against the inner wall of the mounting cavity (11).

7. A pneumatic municipal pipeline sealing device according to any one of claims 1-6, characterized in that, The airbag (1) has multiple mounting grooves (14) evenly spaced on its inner ring wall. The mounting grooves (14) are in the shape of a ring. Multiple connecting rings (7) are fixedly connected at equal distances on the connecting rod (3). The connecting rings (7) are located in the mounting grooves (14) and are fixedly connected to the inner wall of the mounting grooves (14).

8. The airbag-type municipal pipeline sealing device according to claim 7, characterized in that, The protective plate (2) is made of ABS resin material.

Images