Pipeline joint sealing performance enhancing device

Abstract

The utility model discloses a pipeline joint leakproofness enhancing device, which belongs to the technical field of pipeline sealing elements, and comprises a protective cylinder, two first connecting pieces and two second connecting pieces, the two first connecting pieces are fixedly connected with the protective cylinder through a plurality of screws, and the two second connecting pieces are fixedly connected with the protective cylinder through a plurality of screws. The two first connecting pieces and the two second connecting pieces are fixedly connected through a plurality of screws, sealing grooves are formed in the sides, close to the second connecting pieces, of the two first connecting pieces, first sealing rings are arranged on the inner sides of the sealing grooves, and extrusion rings are fixed to the sides, close to the first connecting pieces, of the second connecting pieces. Two limiting rings are fixed to the inner side of the protective cylinder, and two movable rings are further connected to the inner side of the protective cylinder in a sliding mode. The utility model solves the problem that the anti-pressure capability of the protective cover is usually smaller than that of pipeline flange connection, and when the pipeline leaks due to overlarge pressure, leaks are easy to flow out of the protective cover.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline sealing parts, and more specifically, particularly relates to a pipeline connection sealing enhancement device. Background Art

[0002] An anti-seepage pipe is a pipe that can effectively prevent liquid leakage. Liquid leakage will cause serious pollution and damage to the environment and equipment. Therefore, anti-seepage pipes are needed for protection in buildings, water conservancy projects and other fields. Anti-seepage pipes can prevent groundwater pollution, oil pollution, acid and alkali pollution, etc. The existing pipeline joint sealing enhancement device performs sealing enhancement work by installing a protective cover at the connection. The pressure resistance of the protective cover is often smaller than that of the pipeline flange connection. When the pipeline leaks due to excessive pressure, it is easy for the leaked material to flow out of the protective cover. Therefore, a pipeline joint sealing enhancement device is proposed. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a device for enhancing the sealing of pipeline joints. When leakage occurs, the two-component sealant in the two-component sealant tank is injected into the interior of the protective tube through the injection cylinder. The two-component sealant quickly solidifies to seal the protective tube, so as to solve the problem that the pressure resistance of the protective cover proposed in the above background technology is often smaller than that of the pipeline flange connection. When the pipeline leaks due to excessive pressure, it is easy for the leaked material to flow out of the protective cover.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a device for enhancing the sealing of pipeline joints, including a protective tube, two first connecting members and two second connecting members, the two first connecting members and the protective tube are fixedly connected by multiple screws, the two first connecting members and the two second connecting members are fixedly connected by multiple screws, a sealing groove is provided on one side of the two first connecting members close to the second connecting members, a first sealing ring is provided on the inner side of the sealing groove, an extrusion ring is fixed on the side of the second connecting member close to the first connecting member, two limit rings are fixed on the inner side of the protective tube, and the inner side of the protective tube is also slidably connected Two movable rings are connected, a first spring is fixed between the movable ring and the limit ring, mounting grooves are provided on the outer side and inner side of the circumference of the movable ring, second sealing rings are embedded on the inner sides of the two mounting grooves, the outer side of one of the second sealing rings is slidably connected to the inner side of the protective tube, and inclined surfaces are provided on the opposite sides of the two movable rings, an injection cylinder is fixed to the outer side of the protective tube, a piston block is slidably connected to the inner side of the injection cylinder, a piston rod is fixed to the bottom surface of the piston block, the lower end of the piston rod is in sliding contact with the outer side of the inclined surface, the top surface of the piston block is abutted against the second spring, and a two-component sealant tank is fixed to the upper end of the injection cylinder.

[0005] As a preferred technical solution of the utility model, the protective tube and the centers of the two first connecting members and the two second connecting members are on the same horizontal line.

[0006] As a preferred technical solution of the present utility model, the two first connecting members are located at two ends of the protective tube.

[0007] As a preferred technical solution of the present utility model, the two first connecting members are located between the two second connecting members.

[0008] As a preferred technical solution of the present utility model, the cross section of the extrusion ring is a wedge-shaped structure.

[0009] As a preferred technical solution of the present utility model, the interior of the injection cylinder is communicated with the interior of the protective cylinder.

[0010] As a preferred technical solution of the utility model, the inner side of the circumference of the extrusion ring abuts against the outer side of the circumference of the first sealing ring.

[0011] The utility model provides a device for enhancing the sealing performance of a pipeline connection, which has the following beneficial effects:

[0012] 1. The sealing enhancement device at the pipe connection allows the two-component sealant in the two-component sealant tank to be injected into the interior of the protective tube through the injection barrel when leakage occurs. The two-component sealant quickly solidifies and seals the protective tube, solving the problem that the pressure resistance of the protective cover is often less than that of the pipe flange connection. When the pipe leaks due to excessive pressure, it is easy for the leaked material to flow out of the protective cover.

[0013] 2. The sealing enhancement device for the pipe joint has a reasonable and compact structure design and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a device for enhancing the sealing performance of a pipeline connection.

[0015] Figure 2 The utility model is a schematic diagram of the disassembled structure of a device for enhancing the sealing performance of a pipeline connection.

[0016] Figure 3 The utility model is a pipeline connection sealing enhancement device Figure 2 A is an enlarged schematic diagram.

[0017] Figure 4 The utility model is a pipeline connection sealing enhancement device Figure 3 The enlarged schematic diagram of point B in FIG.

[0018] In the figure: 1. protective cylinder; 2. first connecting member; 3. second connecting member; 4. sealing groove; 5. first sealing ring; 6. extrusion ring; 7. limit ring; 8. movable ring; 9. first spring; 10. mounting groove; 11. second sealing ring; 12. inclined surface; 13. injection cylinder; 14. piston block; 15. piston rod; 16. second spring; 17. two-component sealant tank. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0020] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figures 1 to 4The utility model provides a technical solution: a device for enhancing the sealing performance of a pipeline connection, comprising a protective tube 1, two first connecting members 2 and two second connecting members 3, the two first connecting members 2 and the protective tube 1 are fixedly connected by a plurality of screws, the two first connecting members 2 and the two second connecting members 3 are fixedly connected by a plurality of screws, a sealing groove 4 is provided on one side of the two first connecting members 2 close to the second connecting members 3, a first sealing ring 5 is provided on the inner side of the sealing groove 4, an extrusion ring 6 is fixed on the side of the second connecting member 3 close to the first connecting member 2, two limiting rings 7 are fixed on the inner side of the protective tube 1, two movable rings 8 are also slidably connected to the inner side of the protective tube 1, a first spring 9 is fixed between the movable ring 8 and the limiting ring 7, an installation groove 10 is provided on the outer side and the inner side of the circumference of the movable ring 8, a second sealing ring 11 is embedded in the inner side of the two installation grooves 10, one of which The outer side of the second sealing ring 11 is slidably connected to the inner side of the protective cylinder 1, and the opposite sides of the two movable rings 8 are provided with inclined surfaces 12. An injection cylinder 13 is fixed to the outer side of the protective cylinder 1, and a piston block 14 is slidably connected to the inner side of the injection cylinder 13. A piston rod 15 is fixed to the bottom surface of the piston block 14, and the lower end of the piston rod 15 is in sliding contact with the outer side of the inclined surface 12. The top surface of the piston block 14 abuts against a second spring 16, and a two-component sealant tank 17 is fixed to the upper end of the injection cylinder 13. The centers of the protective cylinder 1, the two first connecting members 2, and the two second connecting members 3 are on the same horizontal line, the two first connecting members 2 are at the two ends of the protective cylinder 1, and the two first connecting members 2 are in the middle of the two second connecting members 3. The cross section of the extrusion ring 6 is a wedge-shaped structure, the interior of the injection cylinder 13 is connected to the interior of the protective cylinder 1, and the circumferential inner side of the extrusion ring 6 abuts against the circumferential outer side of the first sealing ring 5;

[0023] The two first connecting pieces 2 are sleeved on the outside of the pipeline, and the protective tube 1 and the two first connecting pieces 2 are fixed by screws. After that, the first sealing ring 5 is placed in the sealing groove 4 on the first connecting piece 2, and the first connecting piece 2 and the second connecting piece 3 are fixed by screws. In this process, the extrusion ring 6 on the second connecting piece 3 squeezes and pushes the sealing groove 4, so that the inner side of the circumference of the sealing groove 4 fits with the outer side of the pipeline, and the side of the sealing groove 4 away from the second connecting piece 3 fits with the inner side of the sealing groove 4, thereby realizing the sealing shape between the first connecting piece 2 and the pipeline. When leakage occurs, the liquid leaks out through the flange connection of the pipeline, so that the two movable rings 8 are connected. The air pressure in the area between the two parts increases, thereby pushing the two movable rings 8 to move to both sides. In this process, the inclined surface 12 on the movable ring 8 pushes the piston rod 15 to move upward, and the piston rod 15 pushes the piston block 14 to move upward, thereby driving the syringe 13, so that the two-component sealant in the two-component sealant tank 17 is injected into the interior of the protective tube 1 through the syringe 13. The two-component sealant quickly solidifies and seals the protective tube 1, further improving the sealing of the pipeline connection, thereby solving the problem that the pressure resistance of the protective cover is often less than that of the pipeline flange connection. When the pipeline leaks due to excessive pressure, it is easy to cause the leaked material to flow out of the protective cover.

[0024] Specific usage and function of this embodiment: The utility model sleeves two first connecting members 2 on the outside of the pipeline, fixes the protective tube 1 and the two first connecting members 2 by screws, then puts the first sealing ring 5 in the sealing groove 4 on the first connecting member 2, fixes the first connecting member 2 and the second connecting member 3 by screws, and in this process, the extrusion ring 6 on the second connecting member 3 squeezes and pushes the sealing groove 4, so that the inner side of the circumference of the sealing groove 4 fits with the outer side of the pipeline, and the side of the sealing groove 4 away from the second connecting member 3 fits with the inner side of the sealing groove 4, thereby realizing the first connecting member 2 and the pipeline. The sealing shape between the two movable rings 8 is formed. When leakage occurs, the liquid seeps out through the flange connection of the pipeline, causing the air pressure in the area between the two movable rings 8 to increase, thereby pushing the two movable rings 8 to move to both sides. During this process, the inclined surface 12 on the movable ring 8 pushes the piston rod 15 to move upward, and the piston rod 15 pushes the piston block 14 to move upward, thereby driving the syringe 13, so that the two-component sealant in the two-component sealant tank 17 is injected into the interior of the protective tube 1 through the syringe 13, and the two-component sealant quickly solidifies to seal the protective tube 1, further improving the sealing of the pipeline connection.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for enhancing the sealing performance of a pipeline connection, comprising a protective tube (1), two first connecting members (2) and two second connecting members (3), characterized in that: The two first connecting members (2) are fixedly connected to the protective tube (1) by a plurality of screws, and the two first connecting members (2) are fixedly connected to the two second connecting members (3) by a plurality of screws. A sealing groove (4) is provided on one side of the two first connecting members (2) close to the second connecting member (3), and a first sealing ring (5) is provided on the inner side of the sealing groove (4). An extrusion ring (6) is fixed on the side of the second connecting member (3) close to the first connecting member (2). Two limiting rings (7) are fixed on the inner side of the protective tube (1), and two movable rings (8) are slidably connected to the inner side of the protective tube (1). A first spring (9) is fixed between the movable ring (8) and the limiting ring (7), and the outer side of the circumference of the movable ring (8) and the The inner side of the circumference is provided with a mounting groove (10), and the inner sides of the two mounting grooves (10) are embedded with a second sealing ring (11), and the outer side of one of the second sealing rings (11) is slidably connected to the inner side of the protective tube (1). The opposite sides of the two movable rings (8) are provided with an inclined surface (12), and an injection cylinder (13) is fixed to the outer side of the protective tube (1), and a piston block (14) is slidably connected to the inner side of the injection cylinder (13). A piston rod (15) is fixed to the bottom surface of the piston block (14), and the lower end of the piston rod (15) is in sliding contact with the outer side of the inclined surface (12). The top surface of the piston block (14) is abutted against a second spring (16), and a two-component sealant tank (17) is fixed to the upper end of the injection cylinder (13).

2. A device for enhancing the sealing performance of a pipe joint according to claim 1, characterized in that: The protective tube (1) is located on the same horizontal line as the centers of the two first connecting members (2) and the two second connecting members (3).

3. A device for enhancing the sealing performance of a pipe joint according to claim 1, characterized in that: The two first connecting members (2) are located at two ends of the protective tube (1).

4. A device for enhancing the sealing performance of a pipe joint according to claim 1, characterized in that: The two first connecting members (2) are located between the two second connecting members (3).

5. The device for enhancing the sealing performance of a pipe joint according to claim 1, characterized in that: The cross section of the extrusion ring (6) is a wedge-shaped structure.

6. A device for enhancing the sealing performance of a pipe joint according to claim 1, characterized in that: The interior of the injection cylinder (13) is communicated with the interior of the protection cylinder (1).

7. The device for enhancing the sealing performance of a pipe joint according to claim 1, characterized in that: The inner circumference of the extrusion ring (6) abuts against the outer circumference of the first sealing ring (5).

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