Pipeline pressure test bell and spigot plugging device

Abstract

The utility model discloses a pipeline pressure test bell and spigot plugging device which comprises a pipe sleeve connected to the position of a pipeline bell and spigot in a sleeved mode, and a first flange piece is arranged at the end of the pipe sleeve. Comprising a sealing plate located on the pipeline bell and spigot end side, the sealing plate is of a disc structure, and a second flange piece is arranged on the side and used for being coincident with and fixed to a first flange piece; a plurality of clamping devices are arranged on the side wall of the pipe sleeve and used for fixing the pipe sleeve to a pipeline. A rubber ring is arranged on the inner side of the sealing plate and used for abutting against the side of the pipeline bell-and-spigot for sealing. The plugging device replaces a flange piece, welding at the bell and spigot of the steel pipe is avoided, and meanwhile the plugging device has the advantage of being suitable for pipe diameters of different specifications. Compared with a traditional method, labor and time are saved; and pipelines with different specifications can be clamped by adjusting the size, so that the cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of municipal pipeline quality control, and in particular relates to a pipe pressure test socket sealing device. Background Technology

[0002] Municipal stormwater and sewage systems are a primary function of cities, and the state has very strict inspection standards for their engineering quality. The water tightness test of drainage pipes is a crucial mandatory inspection item to ensure project quality and prevent pollution. Pipe connection methods mainly include rubber sealing connections, flange connections, welding connections, and socket connections. For steel pipe socket connections, a flange needs to be temporarily welded at the socket for pressure testing to facilitate the connection of the pressure test sealing plate. Flange welding and installation are time-consuming and labor-intensive, and cannot be removed later, resulting in high costs.

[0003] Based on the existing characteristics of the spigot and socket sealing in pipeline water tightness tests, this utility model prepares a detachable sealing device to solve the problem of high cost of existing spigot and socket welded flange sealing methods. Utility Model Content

[0004] The purpose of this utility model is to provide a pipe pressure test socket sealing device. Based on the existing pipe water tightness test socket sealing characteristics, a detachable sealing device is prepared to solve the problem of high cost of existing socket welded flange sealing methods.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A pipe pressure test socket sealing device includes a sleeve fitted onto the pipe socket, the end of which has a first flange.

[0007] Includes a sealing plate located at the end of the pipe socket, the sealing plate having a disc structure and a second flange on its side for overlapping and fixing with the first flange;

[0008] The sleeve sidewall has multiple clamping devices for fixing the sleeve to the pipe;

[0009] The sealing plate has a rubber ring on its inner side, which is used to seal against the side of the pipe socket.

[0010] Furthermore, each clamping device includes a screw, the sleeve has a threaded sleeve through which the screw passes, and the portion of the screw extending into the sleeve has a clamping plate. The clamping plate has a rubber pad on the corresponding clamping side. A nut is fixed to the other end of the screw, and an annular handle is also fixed to the side wall of the screw.

[0011] Furthermore, the second flange is fixed with bolts, and the first flange has a corresponding round hole for the bolts to pass through, and is fixed with nuts.

[0012] Furthermore, the inner side of the sealing plate has multiple concentric annular grooves for installing rubber rings.

[0013] This invention offers the following advantages: it replaces flanges with a sealing device, avoiding welding at the steel pipe socket, and is applicable to pipes of different diameters. Compared to traditional methods, it saves labor and time; and it allows for adjustable clamping of pipes of different specifications, reducing costs. Attached Figure Description

[0014] 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.

[0015] Figure 1 : Schematic diagram of the installation structure of this utility model.

[0016] Figure 2 : A schematic diagram of the disassembled structure of this utility model.

[0017] Figure 3 : Schematic diagram of the screw disassembly structure of this utility model.

[0018] The components represented by each number in the attached diagram are listed below: pipe 1, pipe sleeve 2, first flange 21, sealing plate 3, second flange 31, rubber ring 4, screw 5, threaded sleeve 22, clamping plate 51, rubber gasket 52, nut 53, handle 54, bolt 32, nut 23, annular groove 33. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] like Figure 1-2 As shown: A pipe pressure test socket sealing device includes a pipe sleeve 2 that is fitted onto the socket of pipe 1. In use, it is coaxially fitted onto the socket of pipe. The end of the pipe sleeve 2 has a first flange 21.

[0021] Includes a sealing plate 3 located at the socket end of pipe 1. The sealing plate 3 has a disc structure and a second flange 31 on its side for overlapping and fixing with the first flange 21.

[0022] The side wall of the sleeve 2 has multiple clamping devices for fixing the sleeve 2 to the pipe 1;

[0023] The inner side of the sealing plate 3 has a rubber ring 4, which is used to seal against the edge of the socket of the pipe 1.

[0024] Compared to existing methods that weld flanges to pipe sockets, this invention's sealing device is a detachable pipe sleeve with a first flange that is fixed to a second flange on a sealing plate. The pipe is secured by a clamping device, allowing for convenient disassembly and installation. It is reusable, and after pipe sealing testing, no welding residue is found at the corresponding socket. The inner ring of the sealing plate has a rubber ring to abut against the edge of the pipe socket, improving sealing. This design saves costs and construction time.

[0025] like Figure 3 As shown: The clamping device includes a screw 5, and the sleeve 2 has a threaded sleeve 22 through which the screw 5 passes. The portion of the screw 5 extending into the sleeve 2 has a clamping plate 51. By rotating the screw, the clamping plate contacts the pipe sidewall for clamping, enabling detachable installation of the sleeve. The clamping plate 51 has a rubber pad 52 on the corresponding clamping side. The elastic clamping of the sleeve improves clamping stability. A nut 53 is fixed to the other end of the screw 5, and a ring-shaped handle 54 is also fixed to the sidewall of the screw 5. The screw can be screwed in using an electric wrench in conjunction with the nut, or it can be screwed in manually by driving the handle.

[0026] like Figure 2 As shown: The second flange 31 is fixed with bolts 32, and the first flange 21 has corresponding circular holes for the bolts 32 to pass through, and is fixed with nuts 23. The inner side of the sealing plate 3 has multiple concentric annular grooves 33 for installing rubber rings 4. For pipes of different diameters, the diameter of the rubber ring can be adjusted, and the rubber ring can be installed in the appropriate annular groove.

[0027] 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 pipe pressure testing socket sealing device, characterized in that: Includes a sleeve (2) fitted onto the socket of the pipe (1), the sleeve (2) having a first flange (21) at its end; Includes a sealing plate (3) located at the socket end of the pipe (1), the sealing plate (3) having a disc structure and a second flange (31) on the side for overlapping and fixing with the first flange (21); The sleeve (2) has multiple clamping devices on its side wall for fixing the sleeve (2) to the pipe (1); The sealing plate (3) has a rubber ring (4) on its inner side, which is used to seal against the side of the pipe (1) socket.

2. The pipe pressure testing socket sealing device according to claim 1, characterized in that: Each clamping device includes a screw (5), the sleeve (2) has a threaded sleeve (22) through which the screw (5) passes, and the portion of the screw (5) extending into the sleeve (2) has a clamping plate (51).

3. The pipe pressure testing socket sealing device according to claim 2, characterized in that: The clamping plate (51) has a rubber pad (52) on the clamping side.

4. The pipe pressure testing socket sealing device according to claim 2, characterized in that: The other end of the screw (5) is fixed with a nut (53), and the side wall of the screw (5) is also fixed with an annular handle (54).

5. The pipe pressure testing socket sealing device according to claim 1, characterized in that: The second flange (31) is fixed with bolts (32), and the first flange (21) has a corresponding round hole for the bolts (32) to pass through and is fixed by nuts (23).

6. The pipe pressure testing socket sealing device according to claim 1, characterized in that: The sealing plate (3) has multiple concentric annular grooves (33) on its inner side for installing rubber rings (4).

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