Pressure test sealing plate suitable for different steel pipe diameters

Abstract

The utility model discloses a kind of pressure test sealing plate suitable for different steel pipe diameters, including the plugging pipe of circular truncated cone, the narrow mouth end of plugging pipe is open side, wide mouth end is closed side, the side wall of plugging pipe corresponding closed side is fixed with multiple connecting ears;Including connecting rod, the connecting rod one end is positioned and fixed with connecting ear cooperation, another end is threaded end, for extending to the flange piece round hole of steel pipe mouth side, fixed by nut;According to the caliber of steel pipe, select appropriate number of connecting rod, so that connecting rod is evenly arranged, when the flange of steel pipe corresponding port side is 4 hole structure, connecting rod can be installed in each hole, improve stability, if it is 6 hole flange piece, then connecting rod can be selected and installed in each hole, also can be set apart 3 connecting rods, improve work efficiency.It is suitable for steel pipe mouth side plugging of various calibers.

Description

Technical Field

[0001] This utility model belongs to the technical field of municipal pipeline quality control, and in particular relates to a test pressure sealing plate suitable for different steel pipe diameters. Background Technology

[0002] With increasingly stringent national environmental protection requirements, more and more pipeline projects are incorporating booster pump stations, which in turn increases the pressure requirements on the pipelines. Pipeline pressure testing is an essential step in pipeline construction. Traditionally, a pressure testing sealing plate is required for each pipe diameter, which is inconvenient in practical application.

[0003] When the pipeline installation is less than 1km long (the length is adjusted according to the actual situation), the pipeline quality needs to be tested, especially the sealing of the pipe sockets. The test checks whether the pipeline can operate normally under high water pressure without localized cracking or leakage at the joints. A pressure test involves sealing the pipe ends with a sealing plate, then injecting water to pressurize the pipeline. If the water pressure remains constant at one end for a period of time, it proves that the pipeline's sealing and other performance aspects are good and meet construction standards.

[0004] The present invention mainly prepares a pipeline pressure test sealing plate, which is suitable for pipelines of various diameters and solves the problem that the existing pipeline sealing plates are not adjustable and increase the cost of using the sealing plates. Utility Model Content

[0005] The purpose of this utility model is to provide a test pressure sealing plate suitable for different steel pipe diameters. The test pressure sealing plate designed in this patent is suitable for different pipe diameters. Compared with traditional test pressure sealing plates, it reduces the use of sealing plate materials and lowers costs.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] A pressure test sealing plate suitable for different steel pipe diameters includes a sealing tube in the shape of a frustum, wherein the narrow end of the sealing tube is the open side and the wide end is the closed side, and multiple connecting lugs are fixed to the side wall of the sealing tube corresponding to the closed side.

[0008] The system includes a connecting rod, one end of which engages with a connecting lug for positioning and fixation, and the other end is a threaded end for extending into the flange hole on the side of the steel pipe opening and being fixed by a nut.

[0009] Furthermore, the connecting lug is formed by bending a steel bar in an arc shape, and the end of the steel bar is welded and fixed to the side wall of the sealing pipe. A limiting rod is provided at one end of the connecting rod corresponding to the connecting lug, and the middle part of the limiting rod is welded perpendicularly to the corresponding end of the connecting rod. The connection position of the threaded section of the connecting rod is a hinged joint.

[0010] Furthermore, the sidewall of the sealing tube has a rubber sleeve.

[0011] This invention offers the following advantages: During use, the narrow end of the sealing tube is inserted into the corresponding opening of the steel pipe, ensuring the arc-shaped sidewall of the sealing tube contacts the opening side of the steel pipe, thus completing the sealing. To ensure the sealing tube presses firmly against the opening side of the steel pipe, the wide end of the sealing tube has connecting lugs. Connecting rods are used for fixing. The appropriate number of connecting rods is selected based on the diameter of the steel pipe, ensuring even distribution. When the flange on the corresponding end of the steel pipe has a 4-hole structure, connecting rods can be installed in each hole to improve stability. If it is a 6-hole flange, connecting rods can be installed in each hole, or three connecting rods can be spaced out to improve work efficiency. This invention is suitable for sealing the opening sides of steel pipes of various diameters. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0013] Figure 1 : Schematic diagram of the structure of this utility model.

[0014] Figure 2 : Schematic diagram of the structure of this utility model.

[0015] Figure 3 : Schematic diagram of the structure of this utility model.

[0016] The components represented by each number in the attached diagram are listed below: sealing pipe 1, connecting lug 11, connecting rod 2, steel pipe 3, flange 31, nut 22, limit rod 21, rubber sleeve 4. Detailed Implementation

[0017] 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.

[0018] like Figure 1-2 As shown: A pressure test sealing plate suitable for different steel pipe diameters includes a sealing pipe 1 in the shape of a frustum. The narrow end of the sealing pipe 1 is the open side, and the wide end is the closed side. Multiple connecting ears 11 are fixed on the side wall of the sealing pipe 1 corresponding to the closed side. The connecting ears are evenly distributed around the axis of the sealing pipe.

[0019] Includes a connecting rod 2, one end of which engages with a connecting lug for positioning and fixation, and the other end is a threaded end for extending into the round hole of the flange 31 on the pipe opening side of the steel pipe 3, and is fixed by a nut 22;

[0020] In use, insert the narrow end of the sealing tube into the corresponding opening of the steel pipe, ensuring the curved sidewall of the sealing tube contacts the opening side of the steel pipe to complete the sealing. To ensure the sealing tube presses firmly against the opening side of the steel pipe, the wide end of the sealing tube has connecting lugs. These lugs are secured by connecting rods. Select an appropriate number of connecting rods based on the diameter of the steel pipe, ensuring they are evenly distributed. When the flange on the corresponding end of the steel pipe has a 4-hole structure, connecting rods can be installed in each hole to improve stability. If it is a 6-hole flange, connecting rods can be installed in each hole, or three connecting rods can be spaced out to improve efficiency. This method is suitable for sealing the opening sides of steel pipes of various diameters.

[0021] like Figure 2 As shown: Connecting lug 11 is formed by bending a steel bar in an arc shape, with the end of the steel bar welded and fixed to the side wall of the sealing pipe 1. A through hole is formed for the end of the connecting rod to pass through. A limiting rod 21 is provided at one end of the connecting rod 2 corresponding to the connecting lug 11, with the middle of the limiting rod 21 welded perpendicularly to the corresponding end of the connecting rod 2. The limiting rod is used to form a force-bearing point between the end of the connecting rod and the connecting lug. The connection position of the threaded section of the connecting rod 2 is a hinge. The hinge consists of a hinge lug and a hinge plate, both with hinge holes. The angle of the threaded section of the connecting rod can be adjusted via the hinge shaft, allowing the threaded section of the connecting rod to be inserted coaxially with the circular hole of the flange, improving stability.

[0022] like Figure 3 As shown: The sealing tube 1 has a rubber sleeve 4 on its side wall. When the side wall of the sealing tube contacts the end of the steel pipe, the rubber sleeve can deform to improve the sealing performance.

[0023] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. A pressure testing sealing plate suitable for different steel pipe diameters, characterized in that: It includes a frustum-shaped sealing tube (1), the narrow end of the sealing tube (1) is the open side and the wide end is the closed side, and the sealing tube (1) has multiple connecting lugs (11) fixed on the side wall corresponding to the closed side; Includes a connecting rod (2), one end of which is positioned and fixed by engaging with a connecting lug, and the other end is a threaded end, which is used to extend into the round hole of the flange (31) on the pipe opening side of the steel pipe (3) and is fixed by a nut (22).

2. The pressure testing sealing plate suitable for different steel pipe diameters according to claim 1, characterized in that: The connecting lug (11) is formed by bending a steel bar in an arc shape, and the end of the steel bar is welded and fixed to the side wall of the sealing pipe (1).

3. The pressure test sealing plate suitable for different steel pipe diameters according to claim 2, characterized in that: The connecting rod (2) is provided with a limiting rod (21) at one end corresponding to the connecting ear (11), and the middle part of the limiting rod (21) is welded perpendicularly to the corresponding end of the connecting rod (2).

4. A test pressure sealing plate suitable for different steel pipe diameters according to any one of claims 1-3, characterized in that: The connection position of the threaded section of the connecting rod (2) is the hinge.

5. The pressure testing sealing plate applicable to different steel pipe diameters according to claim 1, characterized in that: The sealing tube (1) has a rubber sleeve (4) on its side wall.

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