CN204554140U - Combined anti-wear spigot and socket type steel pipe joint - Google Patents

Abstract

The utility model discloses a kind of combined anti-wear spigot and socket type steel pipe joint, comprise socket 7 and bellmouth 8, described socket inserts in bellmouth, described socket 7 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, and described embedded groove has been embedded in cushion rubber 4, cage ring 5 and bracing ring 6, and described cushion rubber and bracing ring are combined and formed interference fit with the jack part inserting bellmouth.The beneficial effects of the utility model are, structure is simple, easy for installation, good airproof performance.

Description

Combination anti-abrasion socket type steel pipe joint

technical field

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

The technical solution of this utility model to achieve the above object is a combined anti-wear socket type steel pipe joint, which includes a socket 7 and a socket 8, the socket is inserted into the socket, and the socket 7 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, and an embedded groove is provided on the inner surface of the socket, and a rubber ring 4, an isolation ring 5 and a support ring 6 are embedded in the embedded groove. The rubber ring and the support ring are combined and form an interference fit with the socket part 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 isolation ring 5 is a wedge-shaped structure.

The cross section of the side wall of the support ring 6 is semicircular.

The supporting ring 6 is located inside the embedding groove, the rubber ring 4 is located at the end of the embedding groove, and the spacer ring 5 is located between the supporting ring and the apron.

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

In the combined wear-resistant socket-type steel pipe joint produced 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, spacer ring and support ring are installed in the embedding groove, and inserted The socket part can complete the sealing; the device has simple structure, convenient installation, firm connection, and the plastic coating layer will not be damaged during the installation process.

Description of drawings

Fig. 1 is a structural schematic diagram of the combined anti-wear socket type steel pipe joint described in the utility model;

In the figure: 1. Nut; 2. Bolt; 3. Pressure flange; 4. Rubber ring; 5. Spacer ring; 6. Support ring; 7. Socket; 8. Socket.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings. Figure 1 is a schematic structural diagram of the combined anti-wear socket type steel pipe joint of the utility model. As shown in the figure, a combined anti-wear socket type steel pipe joint, It includes a socket 7 and a socket 8, the socket is inserted into the socket, the socket 7 is provided with a pressure flange 3, 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 the apron 4, the isolation ring 5 and the supporting ring 6 are embedded in the embedding groove, and the apron and the supporting ring are combined together to 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 spacer ring 5 is a wedge-shaped structure; the cross-section of the side wall of the support ring 6 is Semi-circular; the support ring 6 is located inside the embedding groove, the rubber ring 4 is located at the end of the embedding groove, and the spacer ring 5 is located between the support ring and the apron; the bottom end of the pressure flange 3 presses the embedding Rubber ring at the end of the slot.

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 apron, spacer ring and support ring are embedded in the embedding groove, and the apron, spacer ring and support ring are embedded in the embedding groove. The three rings are next to each other and are located between the inner wall of the socket and the outer wall of the socket, and the combination of the rubber ring, the spacer ring and the support ring forms an interference fit with the inner wall of the socket and the outer wall of the socket, so as to prevent the inlet from contacting the socket. Frictional collision occurs, affecting the purpose of sealing.

The above-mentioned technical solution only embodies the preferred technical solution of the technical solution of the utility model, and some changes that those skilled in the art may make to some parts thereof all reflect the principle of the utility model, and belong to the protection scope of the utility model within.

Claims (7)

1. a combined anti-wear spigot and socket type steel pipe joint, comprise socket (7) and bellmouth (8), described socket inserts in bellmouth, it is characterized in that, described socket (7) 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), cage ring (5) and bracing ring (6), and described cushion rubber and bracing ring are combined and formed interference fit with the jack part inserting bellmouth.

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

5. combined anti-wear spigot and socket type steel pipe joint according to claim 1, is characterized in that, the cross section of described bracing ring (6) sidewall is semicircle.

6. combined anti-wear spigot and socket type steel pipe joint according to claim 1, it is characterized in that, described bracing ring (6) is positioned at embedded groove inside, and described cushion rubber (4) is positioned at embedded groove port, and described cage ring (5) is between bracing ring and cushion rubber.

7. combined 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).