阅读说明：本技术 一种复合管连接接头 (Composite pipe connecting joint ) 是由 文建春 于 2019-11-02 设计创作，主要内容包括：本发明提供的一种复合管连接接头,所述的连接接头由至少两个预制件组合形成的环状机构,环状机构内侧壁上设有密封环。连接后的接口抗压、抗弯、防漏能力强。(The invention provides a composite pipe connecting joint, which is an annular mechanism formed by combining at least two prefabricated parts, wherein a sealing ring is arranged on the inner side wall of the annular mechanism. The connected interface has strong compression resistance, bending resistance and leakage resistance.)

1. The utility model provides a compound union coupling which characterized in that: the connecting joint is an annular mechanism formed by combining at least two prefabricated parts (1), and a sealing ring (3) is arranged on the inner side wall of the annular mechanism.

2. A composite pipe coupling joint as defined in claim 1, wherein: the ring mechanism is formed by combining two prefabricated parts (1) with radian of 180 degrees.

3. A composite pipe coupling joint as defined in claim 1, wherein: the ring mechanism is formed by combining three prefabricated parts (1) with radian of 120 degrees.

4. A composite pipe coupling joint as defined in claim 1, wherein: the prefabricated parts (1) are three, wherein the radian of one prefabricated part is 180 degrees, and the radian of the other two prefabricated parts is 90 degrees.

5. A composite pipe coupling joint as defined in claim 1, wherein: the connecting end surface of the prefabricated part (1) is provided with a dovetail groove (2).

6. A composite pipe coupling joint as defined in claim 1, wherein: the connecting end surface of the prefabricated member (1) is in a step shape.

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a composite pipe connecting joint.

Background

Most of the existing pipeline connection modes adopt a thermal contraction band or an electric hot melting mode at a joint, the joint is a place with the weakest stress of the whole pipeline, the leakage is easy, the influence of ground settlement is easy, the tensile resistance and the bending resistance are poor, and the connection is not firm.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the composite pipe connecting joint which is firm in connection and not easy to leak.

In order to achieve the purpose, the technical scheme provided by the invention is as follows: the utility model provides a compound union coupling, the union coupling by the ring-shaped mechanism that two at least prefabs combination formed, be equipped with the sealing ring on the ring-shaped mechanism inside wall.

The ring mechanism is formed by combining two prefabricated parts with radian of 180 degrees.

The ring mechanism is formed by combining three prefabricated parts with radian of 120 degrees.

The prefabricated part is three, the radian of one of the prefabricated parts is 180 degrees, and the other two prefabricated parts are both 90 degrees.

The connecting end surface of the prefabricated part is provided with a dovetail groove.

The connecting end surface of the prefabricated member is in a step shape.

After the scheme is adopted, firstly, a sealing ring is sleeved on each connecting joint of the pipelines, then the connecting joint is coated by using a heat shrinkable tape or glass fiber cloth, then the prefabricated parts are combined at the connecting joints, the sealing rings are positioned in the sealing rings of the prefabricated parts, and the prefabricated parts are connected by using a bolt; the outermost layer is fastened through the steel turns. The connected interface has strong compression resistance, bending resistance and leakage resistance.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic exploded view of fig. 1.

Figure 3 is a schematic view of a steel turn according to the invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings, in which preferred embodiments of the invention are: referring to fig. 1 to 3, the connection joint of the present embodiment is a ring mechanism formed by combining at least two preforms 1, wherein the number of the preforms 1 is three, one of the preforms has an arc of 180 °, and the other two preforms have an arc of 90 °. The radian of the three prefabricated parts 1 can be made into 120 degrees according to actual requirements, and the inner side wall of the annular mechanism is provided with a sealing ring 3. The connection end face of the prefabricated part 1 is in a step shape, a dovetail groove 2 is arranged on the step-shaped end face, and the dovetail groove 2 is connected through a bolt. When the prefabricated member is used, a sealing ring is sleeved on each connecting interface of a pipeline, then the connecting interface is coated by using a heat shrinkable tape or glass fiber cloth, glue is coated after the coating, and finally the prefabricated member is combined at the connecting interface, the sealing ring is positioned in the sealing ring of the prefabricated member, and the prefabricated members are connected by using a bolt; the outermost layer is fastened through the steel turns. The connected interface has strong compression resistance, bending resistance and leakage resistance.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the changes in the shape and principle of the present invention should be covered within the protection scope of the present invention.