A pipe sealing device for gas engineering installation

Abstract

The utility model discloses a pipeline sealing device for gas engineering installation relates to pipeline sealing technical field, and the utility model discloses two mounting seats have the fixedly connected air inlet pipe between two mounting seats, and the lateral surface of air inlet pipe is provided with the air inlet hole of central symmetry distribution, and the fixedly connected rubber sleeve between two mounting seats and located the outside of air inlet hole, and the middle part fixedly connected with connecting pipe of one mounting seat, and the inside of connecting pipe communicates with air inlet pipe, and one side of mounting seat is fixedly connected with L type board, and the inboard of L type board is provided with movable plate, and one side fixedly connected with the inflator of movable plate, and one end of inflator is fixedly connected with connecting pipe, through extruding the air in the inflator and entering the inside of rubber sleeve, make rubber sleeve pressurization collision and pipeline inner wall closely fit, realize the sealing operation of pipeline, and through the control extrusion amount control rubber sleeve's expansion volume, realize the sealing operation of different pipe diameter pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipeline sealing technology, specifically a pipeline sealing device for gas engineering installation. Background Technology

[0002] During the installation of gas engineering projects, pipeline sealing devices are key equipment to ensure construction safety and pipeline quality. Their main function is to seal the pipeline ports during the pipeline laying, connection, or maintenance stages to prevent external debris and moisture from entering the pipeline and causing blockage or corrosion, while also avoiding safety hazards such as gas leaks.

[0003] However, traditional gas pipeline sealing devices for installation typically employ a fixed structural design, with their sealing size and shape pre-set, only suitable for pipelines of specific diameters. Furthermore, the installation and disassembly of traditional sealing devices usually require specialized tools, making the process cumbersome and time-consuming. Especially in complex construction site environments, frequent replacement of devices of different specifications can significantly reduce construction efficiency. To address these issues, the inventors propose a gas pipeline sealing device for installation to solve these problems. Utility Model Content

[0004] In order to solve the problem of poor flexibility of pipeline sealing devices used in gas engineering installation, the purpose of this utility model is to provide a pipeline sealing device for gas engineering installation.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a pipe sealing device for gas engineering installation, comprising two mounting seats, an air inlet pipe fixedly connected between the two mounting seats, air inlet holes centrally symmetrically distributed on the side of the air inlet pipe, a rubber sleeve fixedly connected between the two mounting seats and outside the air inlet holes, a connecting pipe fixedly connected to the middle of one of the mounting seats, the connecting pipe communicating with the interior of the air inlet pipe, an L-shaped plate fixedly connected to one side of the mounting seat, a movable plate provided on the inner side of the L-shaped plate, an air pump fixedly connected to one side of the movable plate, and one end of the air pump fixedly connected to the connecting pipe.

[0006] Preferably, a threaded rod is threadedly connected to one side of the L-shaped plate, one end of the threaded rod is rotatably connected to the movable plate, and a handle is fixedly connected to the end of the threaded rod away from the movable plate. Guide grooves are provided on both sides of the L-shaped plate, and guide blocks are fixedly connected to both sides of the movable plate. The guide blocks are slidably engaged in the corresponding guide grooves, and handles are fixedly connected to both sides of the L-shaped plate near the end of the threaded rod.

[0007] Preferably, a fixing plate is fixedly connected inside the connecting pipe, and a telescopic rod is movably passed through the fixing plate. A conical plug is fixedly connected to the end of the telescopic rod away from the fixing plate. An O-ring is fixedly connected to the side of the connecting pipe near the conical plug. The conical plug and the inner ring of the O-ring are in close contact. A spring is provided between the side of the conical plug away from the O-ring and the fixing plate. The spring is movably sleeved on the outside of the telescopic rod.

[0008] Preferably, an L-shaped rod is fixedly connected to the top of the O-ring, and a movable groove is provided inside the mounting base. The L-shaped rod is slidably engaged in the movable groove, and the top of the L-shaped rod extends to the outside of the mounting base.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. By squeezing the air inside the air pump into the rubber sleeve, the rubber sleeve is pressed and impacted to fit tightly against the inner wall of the pipe, thus sealing the pipe. Furthermore, by controlling the amount of squeezing, the expansion volume of the rubber sleeve can be controlled to achieve sealing operations on pipes of different diameters.

[0011] 2. The cooperation between the telescopic rod, conical plug, O-ring, and spring allows the gas inside the air pump to smoothly enter the interior of the rubber sleeve, while inhibiting the reverse flow of gas to prevent the rubber sleeve from depressurizing.

[0012] 3. Using a spiral drive method is more labor-saving than direct drive. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0016] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0017] Figure 4 This is a schematic diagram of the partially disassembled structure of this utility model.

[0018] In the diagram: 1. Mounting base; 2. Air inlet pipe; 3. Air inlet hole; 4. Rubber sleeve; 5. Connecting pipe; 6. L-shaped plate; 7. Movable plate; 8. Air pump; 9. Threaded rod; 10. Thruster; 11. Guide groove; 12. Guide block; 13. Fixing plate; 14. Telescopic rod; 15. Conical plug; 16. O-ring; 17. Spring; 18. Movable groove; 19. L-shaped rod; 20. Grip. Detailed Implementation

[0019] 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.

[0020] Example: Figure 1-4 As shown, this utility model provides a pipe sealing device for gas engineering installation, including two mounting bases 1, an air inlet pipe 2 fixedly connected between the two mounting bases 1, and air inlet holes 3 centrally symmetrically distributed on the side of the air inlet pipe 2. A rubber sleeve 4 is fixedly connected between the two mounting bases 1 and outside the air inlet holes 3. A connecting pipe 5 is fixedly connected to the middle of one of the mounting bases 1. The connecting pipe 5 communicates with the interior of the air inlet pipe 2. An L-shaped plate 6 is fixedly connected to one side of the mounting base 1. A movable plate 7 is provided on the inner side of the L-shaped plate 6. An air pump 8 is fixedly connected to one side of the movable plate 7. One end of the air pump 8 is fixedly connected to the connecting pipe 5.

[0021] A threaded rod 9 is threadedly connected to one side of the L-shaped plate 6. One end of the threaded rod 9 is rotatably connected to the movable plate 7, and a throttle 10 is fixedly connected to the end of the threaded rod 9 away from the movable plate 7.

[0022] By adopting the above technical solution, the screw rod 9 is rotated by turning the handle 10, which pushes the movable plate 7 to one side of the air pump 8 to realize the inflation operation. The design of the screw rod 9 is more labor-saving than direct push.

[0023] Guide grooves 11 are provided on both sides of the L-shaped plate 6, and guide blocks 12 are fixedly connected to both sides of the movable plate 7. The guide blocks 12 are slidably engaged in the corresponding guide grooves 11.

[0024] By adopting the above technical solution, the cooperation between the guide groove 11 and the guide block 12 facilitates the lateral movement of the movable plate 7, thereby improving the stability of the movable plate 7 during lateral movement.

[0025] A fixing plate 13 is fixedly connected inside the connecting pipe 5. A telescopic rod 14 is movably passed through the fixing plate 13. A conical plug 15 is fixedly connected to the end of the telescopic rod 14 away from the fixing plate 13. An O-ring 16 is fixedly connected to the side of the connecting pipe 5 near the conical plug 15. The conical plug 15 and the inner ring of the O-ring 16 are in close contact. A spring 17 is provided between the side of the conical plug 15 away from the O-ring 16 and the fixing plate 13. The spring 17 is movably sleeved on the outside of the telescopic rod 14.

[0026] By adopting the above technical solution, when the gas inside the air pump 8 is filled into the rubber sleeve 4, the air pressure overcomes the elastic force of the spring 17 and pushes open the conical plug 15, allowing it to smoothly enter the interior of the rubber sleeve 4. When the gas flows in the reverse direction, the elastic force of the spring 17 causes the conical plug 15 to come into close contact with the O-ring 16, blocking the reverse flow of gas and preventing the rubber sleeve 4 from depressurizing.

[0027] The top of the O-ring 16 is fixedly connected to an L-shaped rod 19. The mounting base 1 has a movable groove 18 inside. The L-shaped rod 19 is slidably engaged in the movable groove 18, and the top of the L-shaped rod 19 extends to the outside of the mounting base 1.

[0028] By adopting the above technical solution, when depressurizing the inside of the rubber sleeve 4, the L-shaped rod 19 is pushed from the outside to slide along the inside of the movable groove 18, and at the same time, the conical plug 15 is moved synchronously to overcome the elastic force of the spring 17, so that the conical plug 15 is opened, allowing the gas inside the rubber sleeve 4 to flow in the reverse direction.

[0029] Handles 20 are fixedly connected to both sides of the L-shaped plate 6 near the threaded rod 9.

[0030] By adopting the above technical solution and setting the grip 20, it is easier to operate the handheld device.

[0031] Working principle: When sealing the gas pipeline, one hand holds the handle 20 and inserts the rubber sleeve 4 into the pipe opening. Then, the other hand turns the handle 10, which drives the threaded rod 9 to rotate. Under the guidance of the guide block 12 by the guide groove 11, the movable plate 7 is pushed to one side of the air pump 8, which sends the gas inside the air pump 8 into the interior of the connecting pipe 5. Overcoming the elastic force of the spring 17, the conical plug 15 and the O-ring 16 are opened, allowing the gas to enter the interior of the air inlet pipe 2 and finally be discharged through the air inlet 3. This causes the rubber sleeve 4 to expand. The expanded rubber sleeve 4 can fit tightly against the inner wall of the pipeline, thereby achieving a sealing effect.

[0032] When it is necessary to disassemble the rubber sleeve 4, the L-shaped rod 19 is pushed to slide along the inside of the movable groove 18, which actively opens the conical plug 15, allowing the gas inside the rubber sleeve 4 to flow in the reverse direction to the inside of the air pump 8. Then, the threaded rod 9 is rotated in the reverse direction to reset the movable plate 7.

[0033] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pipe sealing device for gas engineering installation, comprising two mounting bases (1), characterized in that: An air inlet pipe (2) is fixedly connected between two mounting bases (1). The side of the air inlet pipe (2) is provided with centrally symmetrically distributed air inlet holes (3). A rubber sleeve (4) is fixedly connected between the two mounting bases (1) and outside the air inlet holes (3). A connecting pipe (5) is fixedly connected to the middle of one of the mounting bases (1). The connecting pipe (5) communicates with the inside of the air inlet pipe (2). An L-shaped plate (6) is fixedly connected to one side of the mounting base (1). A movable plate (7) is provided on the inner side of the L-shaped plate (6). An air pump (8) is fixedly connected to one side of the movable plate (7). One end of the air pump (8) is fixedly connected to the connecting pipe (5).

2. The pipeline sealing device for gas engineering installation as described in claim 1, characterized in that, A threaded rod (9) is threadedly connected to one side of the L-shaped plate (6). One end of the threaded rod (9) is rotatably connected to the movable plate (7). A throttle (10) is fixedly connected to the end of the threaded rod (9) away from the movable plate (7).

3. A pipeline sealing device for gas engineering installation as described in claim 1, characterized in that, The L-shaped plate (6) has guide grooves (11) on both sides, and guide blocks (12) are fixedly connected to both sides of the movable plate (7). The guide blocks (12) are slidably engaged in the corresponding guide grooves (11).

4. A pipeline sealing device for gas engineering installation as described in claim 1, characterized in that, A fixing plate (13) is fixedly connected inside the connecting pipe (5). A telescopic rod (14) is movably passed through the fixing plate (13). A conical plug (15) is fixedly connected to one end of the telescopic rod (14) away from the fixing plate (13). An O-ring (16) is fixedly connected to the side of the connecting pipe (5) near the conical plug (15). The conical plug (15) and the inner ring of the O-ring (16) are in close contact.

5. A pipeline sealing device for gas engineering installation as described in claim 4, characterized in that, The top end of the O-ring (16) is fixedly connected to an L-shaped rod (19). The mounting base (1) has an internal movable groove (18). The L-shaped rod (19) is slidably engaged in the movable groove (18). The top end of the L-shaped rod (19) extends to the outside of the mounting base (1).

6. A pipeline sealing device for gas engineering installation as described in claim 2, characterized in that, The L-shaped plate (6) has handles (20) fixedly connected to both sides of the end near the threaded rod (9).

7. A pipeline sealing device for gas engineering installation as described in claim 4, characterized in that, A spring (17) is provided between the side of the conical plug (15) away from the O-ring (16) and the fixing plate (13), and the spring (17) is movably sleeved on the outside of the telescopic rod (14).

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