CN210069170U

CN210069170U - Pipeline connecting device

Info

Publication number: CN210069170U
Application number: CN201920382976.8U
Authority: CN
Inventors: 刘忠林
Original assignee: Shenzhen Rui Ke Ke Technology Co Ltd
Current assignee: Shenzhen Rui Ke Ke Technology Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-02-14
Anticipated expiration: 2029-03-25

Abstract

The utility model provides a pipeline connecting device, is including connecting cap (2), connector (3) and packing ring (4), and two are connected cap (2) and connector (3) and are passed through threaded connection at connector (3) both ends, and two packing rings (4) are placed respectively in two and are connected cap (2) and lie in the both ends of connector (3). The hot-welding type pipeline connecting device has the advantages that a hot-machining welding method is not used in the process of connecting pipelines on site, a spanner is used for connecting the pipelines, safety and reliability are realized, the operation is simple, and special training is not needed for operating personnel.

Description

Pipeline connecting device

Technical Field

The present invention relates to a quick coupling of pipe fittings with a rotating outer sleeve or ring, and more particularly to a pipe coupling device.

Background

At present, in the construction of gas or liquid pipelines, a welding method is mostly used for pipeline connection. The requirement on the skills of welding workers in the welding process is high, the welding process needs protection of an inflatable body to prevent oxidation, fire prevention preparation needs to be carried out on a construction site, the product quality is influenced by human factors, the quality fluctuation is large, and the welding preparation workload is large.

Disclosure of Invention

To the shortcoming of prior art, the utility model aims to provide a pipeline connecting device. The pipeline connecting device aims to complete connection by a worker by using a simple wrench tool without using a welding method of hot working when pipeline connection is carried out.

The utility model provides a technical scheme that its technical problem adopted is: provided is a pipe connection device, characterized in that: the connecting device comprises connecting caps, a connecting body and gaskets, wherein the two connecting caps are connected with the connecting body through threads at two ends of the connecting body, and the two gaskets are respectively placed at two ends of the connecting body in the two connecting caps.

Further:

the connecting cap is of a hollow structure, the periphery of the connecting cap is hexagonal, and an inner hole is divided into three sections, namely an inner thread section, a cavity section and a retaining head.

The edge of the gasket is provided with a chamfer of 25 degrees.

The connecting body is of a hollow symmetrical structure, the middle of the periphery is a second stage, the two ends of the periphery are sequentially provided with a first stage and an external thread section, the second stage is a hexagonal wrench head, and the first stage is matched with the gasket; the external thread section is matched with the internal thread section of the connecting cap, and the middle part of the inner wall is provided with a limiting table section, an inner cavity section and an annular groove section.

The first step section is provided with a raised conical step, and the angle of the conical step is 150 degrees.

The utility model has the advantages that: when the pipeline is connected on site, a hot-working welding method is not used, but a spanner is used for connection, so that the pipeline connecting device is safe and reliable, is simple to operate, and does not need special training for operators.

Drawings

The present invention will be further described with reference to the accompanying drawings.

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

Fig. 2 is a schematic view of the utility model after connecting the pipe fitting 1.

Fig. 3 is a schematic structural view of the connector 3 of the present invention.

Fig. 4 is a schematic structural view of the connecting cap 2 of the present invention.

Fig. 5 is a schematic structural view of the connecting gasket 4 of the present invention.

In the figure: 1 is a workpiece tube, 2 is a connecting cap, 3 is a connector, and 4 is a gasket.

In the outer wall of the connector 3, a segment a1 is a first step, a segment a2 is an external thread, a segment a3 is a second step, and a segment a7 is a hexagonal wrench head; in the inner wall, a segment a4 is a limit step, a segment a5 is an inner cavity, and a segment a6 is an annular groove.

In the connecting cap 2, the b1 segment is an internal thread, the b2 segment is a cavity, and the b3 segment is a stopper.

Detailed Description

Referring to fig. 1, the utility model relates to a pipeline connecting device, its characterized in that: including connecting cap 2, connector 3 and packing ring 4, two connect cap 2 and connector 3 both ends at connector 3 pass through threaded connection, and two packing rings 4 are placed respectively in two both ends that are located connector 3 in connecting cap 2. The assembled inner diameter is placed into the workpiece tube 1 (see fig. 2).

In the embodiment of the present invention:

referring to fig. 4, the connecting cap 2 has a hollow structure, a hexagonal outer periphery, and an inner hole divided into three sections, namely an internal thread section b1, a cavity section b2, and a stopper b 3. The cavity section b2 is used for placing the gasket 4, and the stop b3 prevents the gasket 4 from falling out.

The edge of the washer 4 is chamfered by 25 degrees.

The connector 3 is of a hollow symmetrical structure, the middle of the periphery is provided with a second stage a7, the two ends of the periphery are sequentially provided with a first stage a1 and an external thread section a2, the second stage a7 is a hexagonal wrench head, and the first stage a1 is matched with the washer 4; the external thread section a2 is matched with the internal thread section b1 of the connecting cap 2, and the middle part of the inner wall is provided with a limiting step a4 section, an inner cavity a5 section and an annular groove a6 section. The limiting step a4 is used for limiting the insertion depth of the workpiece tube 1, the inner cavity a5 is used for inserting the workpiece tube 1, and the annular groove a6 is used for placing adhesive.

The first stage a1 has a raised tapered step at an angle of 150 °.

The utility model discloses install in advance before the connecting tube, see figure 1 and show. The coupling washer 4 is mounted in the cavity b2 of the coupling cap 2 to be rotated together with the coupling body 3. In the pre-assembled state, the coupling cap 2 is screwed with the coupling body 3 for two turns, so that the outer edge of the coupling washer 4 is just at the first stage a1 of the coupling body 3.

In particular, the connection is shown in FIG. 2. The connected workpiece tube 1 is inserted into the connection body 3 to the limit step a 4. The coupling cap 2 is rotated using a wrench. When the connecting cap 2 rotates in a threaded manner, the gasket 4 is extruded, and the gasket 4 is pushed inwards; during the process of pushing the gasket 4, the 25 ° angle at the edge of the gasket presses the first step a1 of the connecting body 3 (the material used for the connecting body 3 is softer than the material used for the gasket 4, but the hardness is higher than the connected pipeline), as the connecting cap 2 rotates and pushes, the gasket 4 completely presses the first step a1 of the connecting body 3, the excess volume of the first step a1 boss is pressed downwards when being pressed, and presses the outer surface of the workpiece tube 1 in the connecting body 3, and the workpiece tube 1 is correspondingly deformed by the force, and finally forms an annular deformation zone at c in fig. 2. When the coupling cap 2 is completely rotated to the second step a3 of the coupling body 3, the coupling is completed. After the connection is completed, the connection cap 2 and the gasket 4 are kept at the current position, and the connection force is continuously provided.

The workpiece tube 1 and the connecting body 3 to be connected are tightly pressed on the outer surface of the connecting body 3 by a gasket 4 in fig. 2, and the connecting body 3 and the workpiece tube form a tight plastic deformation area at c, and a permanent radial connecting force is provided due to the deformation area, so that the tube connection is realized.

Claims

1. A pipe connection device, characterized by: including connecting cap (2), connector (3) and packing ring (4), two connect cap (2) and pass through threaded connection with connector (3) at connector (3) both ends, two packing rings (4) are placed respectively in two and are connected cap (2) the both ends that are located connector (3).

2. The line connection apparatus according to claim 1, wherein: the connecting cap (2) is of a hollow structure, the periphery of the connecting cap is hexagonal, an inner hole is divided into three sections, namely an inner thread section (b 1), a cavity section (b 2) and a stopper (b 3).

3. The line connection apparatus according to claim 1, wherein: the connector (3) is of a hollow symmetrical structure, the middle of the periphery is provided with a second stage (a 7), the two ends of the periphery are sequentially provided with a first stage (a 1) and an external thread section (a 2), the second stage (a 7) is a hexagonal wrench head, and the first stage (a 1) is matched with the gasket (4); the external thread section (a 2) is matched with the internal thread section (b 1) of the connecting cap (2), and a limiting step (a 4) section, an inner cavity (a 5) section and an annular groove (a 6) section are arranged in the middle of the inner wall.