Quick connecting device for plastic-coated steel pipe

Abstract

The utility model provides a quick connecting device for a plastic-coated steel pipe, which comprises coupling pieces, the two coupling pieces are oppositely matched, connecting parts are integrally arranged at the two ends of each coupling piece, a mounting bolt and a mounting nut are arranged between every two adjacent and oppositely arranged connecting parts, and a connecting bulge is arranged on the outer side of each coupling piece. Due to the arrangement of the connecting protrusions, the inserting holes, the connecting bolts, the connecting nuts and the arc-shaped gaskets, the deformation position of the steel pipe can be fixed through splicing.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel pipe connection, in particular to a quick-connect device for plastic-coated steel pipes. Background Art

[0002] The plastic-coated steel pipe is a steel-plastic composite steel pipe with a steel pipe as the base, which is formed by welding a plastic anti-corrosion layer on the surface of the steel pipe or welding a plastic anti-corrosion layer on the inner and outer surfaces. When this type of steel pipe is quickly connected, it is usually connected by groove connection, flange connection, pipe clamp connection, etc. The existing plastic-coated steel pipe quick connection device includes two relatively arranged pipe clamps, and a sealing rubber layer is provided inside the pipe clamp. The two pipe clamps are fixed by bolts and nuts. Although this type of plastic-coated steel pipe connection device can quickly connect the steel pipe when in use, when the steel pipe is deformed, it is not convenient to splice and fix the steel pipe at a certain length. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a quick-connect device for a plastic-coated steel pipe, which can fix the deformed part of the steel pipe by splicing.

[0004] The utility model is realized by the following technical solutions:

[0005] A quick-connect device for a plastic-coated steel pipe comprises a coupling member, wherein two coupling members are arranged to cooperate with each other, and the device is characterized in that both ends of each coupling member are integrally provided with connecting parts, mounting bolts and nuts are provided between each two adjacent connecting parts, and a connecting protrusion is provided on the outer side of each coupling member.

[0006] Preferably, both ends of the connecting protrusion are chamfered.

[0007] Preferably, an arc-shaped gasket is arranged between two vertically adjacent connecting protrusions.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1. In the utility model, the arrangement of the connecting protrusion, the insertion hole, the connecting bolt and nut, and the arc-shaped gasket is conducive to fixing the deformed part of the steel pipe by splicing.

[0010] 2. In the utility model, the coupling member, the connecting part, the rubber sealing layer, and the arrangement of the mounting bolts and nuts are conducive to the quick connection of the plastic-coated steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model.

[0012] Figure 2 It is a structural schematic diagram of a coupling member of the utility model.

[0013] In the figure:

[0014] 1. Coupling; 2. Connecting part; 3. Rubber sealing layer; 4. Mounting bolts and nuts; 5. Connecting protrusion; 51. Socket; 52. Connecting bolts and nuts; 53. Arc-shaped gasket. DETAILED DESCRIPTION

[0015] The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1 As shown, a quick-connect device for a plastic-coated steel pipe comprises a coupling member 1. Two coupling members 1 are arranged to cooperate with each other. Both ends of each coupling member 1 are integrally provided with connecting parts 2. A mounting bolt and nut 4 is provided between each two adjacent connecting parts 2. A connecting protrusion 5 is provided on the outer side of each coupling member 1, and chamfers are provided at both ends of the connecting protrusion 5.

[0016] In this embodiment, combined with the Figure 2 As shown, the connecting protrusion 5 has holes 51 arranged side by side inside, an arc-shaped gasket 53 is arranged between two upper and lower adjacent connecting protrusions 5, and a connecting bolt and nut 52 is installed between the two upper and lower adjacent connecting protrusions 5. When the plastic-coated steel pipe is deformed and needs to be fixed, the user puts a plurality of coupling parts 1 arranged in pairs on the deformed part of the plastic-coated steel pipe, and connects the coupling parts 1 with the connecting bolts and nuts 52, thereby realizing the function of fixing the deformation of the plastic-coated steel pipe.

[0017] In this embodiment, specifically, a rubber sealing layer 3 is glued to the inner side of each coupling member 1 .

[0018] How it works

[0019] In the utility model, when the plastic-coated steel pipes are connected, the two plastic-coated steel pipes are aligned, the coupling 1 is installed between the two plastic-coated steel pipes, and the bolts and nuts 4 are installed to fix the connecting part 2, so that the coupling 1 and the rubber sealing layer 3 connect and fix the two plastic-coated steel pipes.

[0020] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A quick-connect device for a plastic-coated steel pipe, comprising a coupling member (1), wherein two coupling members (1) are arranged in a relative matching manner, and characterized in that: Both ends of each coupling member (1) are integrally provided with connecting parts (2), a mounting bolt nut (4) is provided between each two adjacent connecting parts (2) that are arranged opposite to each other, and a connecting protrusion (5) is provided on the outer side of each coupling member (1).

2. The quick-connect device for plastic-coated steel pipe according to claim 1, characterized in that: Both ends of the connecting protrusion (5) are provided with chamfers.

3. The quick-connect device for plastic-coated steel pipe according to claim 1, characterized in that: An arc-shaped gasket (53) is arranged between two vertically adjacent connecting protrusions (5).

4. The quick-connect device for plastic-coated steel pipe according to claim 1, characterized in that: A connecting bolt and nut (52) is installed between two connecting protrusions (5) arranged adjacent to each other up and down.

5. The quick-connect device for plastic-coated steel pipe according to claim 1, characterized in that: Insertion holes (51) are arranged side by side inside the connecting protrusion (5).

6. The quick-connect device for plastic-coated steel pipe according to claim 1, characterized in that: The inner side of each coupling member (1) is glued with a rubber sealing layer (3).

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