CN204554130U - Compound anti-wear spigot and socket type steel pipe joint - Google Patents

Abstract

The utility model discloses a composite anti-wear socket type steel pipe joint, which comprises a socket 6 and a socket 7, the socket is inserted into the socket, the socket 6 is provided with a pressure flange 3, and the pressure flange passes through a bolt 2 The nut 1 is fixedly connected with the edge of the socket, and the inner surface of the socket is provided with an embedding groove, and an apron 4 and a support ring 5 are embedded in the embedding groove, and the apron and the support ring are combined and combined with The socket portion inserted into the socket forms an interference fit. The utility model has the beneficial effects of simple structure, convenient installation and good sealing performance.

Description

Composite anti-abrasion socket type steel pipe joint

technical field

The utility model relates to the field of improving the structure of pipe joints, in particular to a composite anti-wear socket type steel pipe joint.

Background technique

In the pipe joints of the prior art, especially the plastic-coated pipe joints, during use, the plastic-coated inner wall of the socket is prone to friction and collision with the socket, the inner wall of the socket is worn, and even the coating is damaged. Then affect its sealing, and greatly shorten the service life of the joint.

Utility model content

The purpose of this utility model is to solve the above-mentioned problems and design a composite anti-wear socket type steel pipe joint.

The technical solution of this utility model to achieve the above object is a composite anti-wear socket type steel pipe joint, including a socket 6 and a socket 7, the socket is inserted into the socket, and the socket 6 is provided with a pressure flange 3, so that The pressure flange is fixedly connected to the edge of the socket through bolts 2 and nuts 1. An embedding groove is provided on the inner surface of the socket, and an apron 4 and a support ring 5 are embedded in the embedding groove. The apron and the support The rings fit together and form an interference fit with the socket portion that is inserted into the socket.

The embedding groove is a conical structure.

The cross section of the side wall of the rubber ring 4 is a wedge-shaped structure.

The cross-section of the side wall of the support ring 5 is a wedge-shaped structure.

The support ring 5 is located inside the embedding groove, and the rubber ring 4 is located at the port of the embedding groove.

The bottom end of the pressure flange 3 presses against the rubber ring embedded in the port of the groove.

In the composite wear-resistant socket-type steel pipe joint made by the technical scheme of the utility model, the inner wall of the socket is processed with a rolling process to form an embedding groove, and the rubber ring and the supporting ring are installed in the embedding groove, and then inserted into the socket. Complete sealing; the device has simple structure, convenient installation, firm connection, and will not damage the plastic coating layer during installation.

Description of drawings

Fig. 1 is a schematic structural view of the composite anti-wear socket type steel pipe joint described in the present invention;

In the figure, 1. Nut; 2. Bolt; 3. Pressure flange; 4. Rubber ring; 5. Support ring; 6. Socket; 7. Socket.

Detailed ways

The utility model is described in detail below in conjunction with the accompanying drawings. Figure 1 is a structural schematic diagram of the composite anti-wear socket type steel pipe joint of the utility model. As shown in the figure, a composite type anti-wear socket type steel pipe joint, It includes a socket 6 and a socket 7, the socket is inserted into the socket, the socket 6 is provided with a pressure flange 3, and the pressure flange is fixedly connected to the edge of the socket through bolts 2 and nuts 1, the inner surface of the socket An embedding groove is provided on the top, and an apron 4 and a support ring 5 are embedded in the inlay groove. The apron 4 and the support ring are combined together and form an interference fit with the socket part inserted into the socket. Wherein, the embedding groove is a conical structure; the cross-section of the side wall of the rubber ring 4 is a wedge-shaped structure; the cross-section of the side wall of the support ring 5 is a wedge-shaped structure; the support ring 5 is located inside the embedding groove, and the The apron 4 is located at the end of the embedding groove; the bottom end of the pressure flange 3 presses the apron at the end of the embedding groove.

The feature of this technical solution is that a conical surface-shaped embedding groove is processed on the inner wall of the socket by a rolling process, and the rubber ring and the support ring are embedded in the embedding groove, and the rubber ring and the support ring are next to each other and located Between the inner wall of the socket and the outer wall of the socket, and the rubber ring and the support ring are combined together to form an interference fit with the inner wall of the socket and the outer wall of the socket, so as to prevent frictional collision between the inlet and the socket and affect the sealing performance.

The above-mentioned technical solutions only embody the preferred technical solutions of the technical solutions of the present utility model, and some changes that may be made by those skilled in the art to some parts thereof reflect the principles of the present utility model and belong to the protection scope of the present utility model within.

Claims (6)

1. a compound anti-wear spigot and socket type steel pipe joint, comprise socket (6) and bellmouth (7), described socket inserts in bellmouth, it is characterized in that, described socket (6) is provided with differential (3), described differential is fixedly connected with bellmouth edge with nut (1) by bolt (2), the internal surface of described bellmouth is provided with embedded groove, described embedded groove has been embedded in cushion rubber (4) and bracing ring (5), and described cushion rubber and bracing ring are combined and formed interference fit with the jack part inserting bellmouth.

2. compound anti-wear spigot and socket type steel pipe joint according to claim 1, it is characterized in that, described embedded groove is conical structure.

3. compound anti-wear spigot and socket type steel pipe joint according to claim 1, is characterized in that, the cross section of described cushion rubber (4) sidewall is wedge-shaped structure.

4. compound anti-wear spigot and socket type steel pipe joint according to claim 1, is characterized in that, the cross section of described bracing ring (5) sidewall is wedge-shaped structure.

5. compound anti-wear spigot and socket type steel pipe joint according to claim 1, it is characterized in that, described bracing ring (5) is positioned at embedded groove inside, and described cushion rubber (4) is positioned at embedded groove port.

6. compound anti-wear spigot and socket type steel pipe joint according to claim 1, is characterized in that, the cushion rubber of embedded groove port is pushed down in the bottom of described differential (3).