CN213712203U

CN213712203U - Self-tightening type pipeline connecting device

Info

Publication number: CN213712203U
Application number: CN202022411965.3U
Authority: CN
Inventors: 黄献文; 姚直书; 刁奶毫; 李欣慰; 周瑞鹤; 陈汉青; 王雪松
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-07-16
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses a self-tightening type pipeline connecting device, including pipeline, upper pipe way, semi-flange connection pad, self-tightening interlock gasket down. Adopt the half flange interface system of self-tightening gasket of this application, when the connection pad of fastening is receiving vibration not hard up when taking place the reversal, the L type buckle drives the gasket through the friction side of self-tightening interlock gasket and rotates, push down the self-tightening interlock gasket when the sawtooth side of gasket reverses to the friction interlock power of increase friction side and terrace with edge enlarged footing end prevents the not hard up of connection pad, forms the half flange joint system of self-tightening gasket that never loosens, has locking reliable, the installation is compact convenient, low cost's advantage.

Description

Self-tightening type pipeline connecting device

Technical Field

The utility model relates to a mechanical connection field, especially a self-clinching formula pipe joint device.

Background

In the modern coal mine construction engineering, the arrangement of the water supply and drainage pipeline has important significance for the mine construction safety. At present, steel pipes or PE pipes are generally adopted as water supply and drainage pipelines for mine construction because of good deformability. Because the pipelines of water supply and drainage pipelines in mine construction are long, all the pipelines are spliced by adopting a joint mode. Common forms of joints include: flange connection, quick structure connection, butt welding connection and butt welding connection of an external sleeve.

The steel flange connection has simple operation, lower technical requirements on installation and construction, but slow installation speed; the number of pipe fittings is large, the manufacturing cost is high, and the load of the supporting beam is increased; the quick joint has high installation and construction speed, has a certain telescopic effect, but is easy to cause the pipeline to be misplaced, and if the whole pipeline is connected by the quick joint, the straightness and the safety of the pipeline are difficult to ensure; the rubber pad is easy to leak water after aging, and the maintenance in the vertical shaft is inconvenient; butt welding connection, namely, no pipe fitting is required to be added, the load of the supporting beam is small, and the later maintenance amount is small; however, when the construction is carried out in a vertical shaft, the welding gap and the welding quality of the whole pipeline are difficult to ensure; the external sleeve is inserted and welded for connection, so that the welding quality and the perpendicularity of the whole pipeline are easily ensured, the later maintenance amount is small, and the welding quality is difficult to ensure.

However, in the above joint form, under the condition of large impact, vibration and temperature change, loosening may occur between joints after repeated times, so that, by combining the above analysis, a pipeline joint form with reliable loosening prevention, compact and convenient installation and low cost is provided.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a from compact formula pipe joint device to the not enough of prior art, makes it have locking reliable, installation compactness convenience, low cost, the reliable advantage of quality.

The technical scheme is as follows:

a self-tightening pipe joint device is characterized in that: the lower pipeline comprises an external thread, an inner side occlusion port and an inner side frustum receiving end, and the lower pipeline frustum receiving end comprises an outer side occlusion port; the upper pipeline comprises a prismatic table expansion end and a prismatic table insertion end, the upper pipeline prismatic table expansion end comprises friction stripes on the upper side, and the upper pipeline prismatic table insertion end comprises occlusion ports on the outer side and the inner side; the half flange connecting disc comprises an L-shaped buckle and an inner thread, the L-shaped buckle comprises an inner side sawtooth-shaped occlusion side, and the inner thread of the half flange connecting disc is matched with an outer thread of a lower pipeline terrace receiving end; the self-tightening bite pad includes a serrated bite side and a friction side.

Furthermore, the lower pipeline prismoid receiving end occlusion port is in threaded matching with the upper pipeline prismoid inserting end occlusion port.

Further, the sawtooth-shaped occlusion side on the inner side of the L-shaped buckle of the half flange connection disc is matched with the sawtooth-shaped occlusion side of the self-tightening occlusion gasket.

Furthermore, after the frustum receiving end is occluded with the frustum insertion end of the upper pipeline, epoxy resin is filled in the gap of the occlusion port.

Further, the outer diameter and the inner diameter of the self-tightening occlusion gasket are respectively consistent with the inner diameter of the half-flange connecting disc and the outer diameters of the upper pipeline and the lower pipeline.

Further, one side of the self-tightening gripping pad is provided with large saw teeth, and the other side of the self-tightening gripping pad is provided with a striped friction surface.

Further, the width of the gap between the L-shaped buckle of the half-flange connecting disc and the enlarged end of the upper pipeline terrace is the thickness of the self-tightening occlusion gasket after being occluded with the L-shaped buckle.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a self-tightening type pipeline joint device, which comprises a lower pipeline, an upper pipeline, a half flange connecting disc and a self-tightening occlusion gasket, wherein the lower pipeline comprises an external thread, an inner occlusion port and an inner prismatic table receiving end, and the lower pipeline prismatic table receiving end comprises an outer occlusion port; the upper pipeline comprises a prismatic table expansion end and a prismatic table insertion end, the upper pipeline prismatic table expansion end comprises friction stripes on the upper side, and the upper pipeline prismatic table insertion end comprises occlusion ports on the outer side and the inner side; the half flange connecting disc comprises an L-shaped buckle, an inner thread and a sawtooth-shaped occlusion side at the inner side of the L-shaped buckle, and the inner thread of the half flange connecting disc is matched with an outer thread at the receiving end of the lower pipeline frustum; the self-tightening bite pad includes a serrated bite side and a friction side. Adopt the half flange interface system of self-tightening gasket of this application, when the connection pad of fastening is receiving vibration not hard up when taking place the reversal, the L type buckle drives the gasket through the friction side of self-tightening interlock gasket and rotates, push down the self-tightening interlock gasket when the sawtooth side of gasket reverses to the friction interlock power of increase friction side and terrace with edge enlarged footing end prevents the not hard up of connection pad, form the half flange joint system of self-tightening gasket that never loosens, have locking reliable, the installation is compact convenient, low cost's advantage.

Drawings

Fig. 1 is a schematic view of an interface structure according to an embodiment of the present invention.

Fig. 2 is a schematic view of a pipeline structure in an embodiment of the present invention.

Fig. 3 is a schematic view of the pipeline structure in the embodiment of the present invention.

Fig. 4 is a schematic diagram of a structure of a half-flange connection disc according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of a self-tightening engaging gasket according to an embodiment of the present invention.

Fig. 6 is a detailed view of the self-tightening engaging pad engaged and loosened according to the embodiment of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 2-5, the lower pipeline external thread 1.1 is matched with the half flange connection disc internal thread 3.1, the lower pipeline internal occlusion port 1.2, the lower pipeline internal terrace with edge receiving end 1.3 is matched with the upper pipeline terrace with edge inserting end 2.1, the upper pipeline terrace with edge expanding end 2.2 has friction stripe, the half flange connection disc L-shaped buckle 3.2 is integrated with the L-shaped buckle internal zigzag occlusion side 3.3, the L-shaped bayonet internal zigzag occlusion side 3.3 is matched with the self-tightening occlusion side 4.1, the friction side 4.2 of the self-tightening occlusion pad is in friction contact with the upper pipeline terrace with edge expanding end 2.2.

The installation process comprises the following steps: at first, a lower pipeline 1 and an upper pipeline 2 are prefabricated in a factory, and the pipe diameters of the lower pipeline and the upper pipeline are consistent and are made of PE materials. The outer side of the lower pipeline is provided with an external thread 1.1, the inner side of the lower pipeline is provided with an occlusion port 1.2, and the inner side of the lower pipeline is provided with a prismatic table receiving end 1.3. When an upper pipeline and a lower pipeline are connected, the upper pipeline frustum insertion end 2.1 is inserted into the lower pipeline frustum receiving end 1.3, the two end occlusion ports are mutually occluded and matched, and after occlusion, gaps of the upper pipeline frustum insertion end and the lower pipeline frustum receiving end are filled with epoxy resin to achieve a good water stopping effect. After the upper pipeline and the lower pipeline are connected, a self-tightening occlusion gasket 4 made of metal is placed on the upper side of the upper pipeline terrace expansion end 2.2, so that the friction side 4.2 of the self-tightening occlusion gasket is tightly attached to the friction side on the upper side of the upper pipeline terrace expansion end 2.2. After the gasket 4 is installed, the half flange connection disc 3 is connected with the upper pipeline 1 and the lower pipeline 2, and when the half flange connection disc 3 is connected, the zigzag engagement side 3.3 on the inner side of the L-shaped buckle is tightly engaged with the zigzag engagement side 4.1 of the self-tightening engagement gasket by clockwise rotating the half flange connection disc 3. At this point the installation is complete. After multiple times of impact, vibration or temperature change, as shown in fig. 6, the half flange connection disc 3 of the permanent self-tightening gasket half flange joint system slightly rotates anticlockwise, at the moment, the serrated engagement side 3.3 on the inner side of the L-shaped buckle of the half flange connection disc presses the self-tightening engagement gasket 4 downwards, and the anti-clockwise rotation of the half flange connection disc 3 is limited due to the fact that the frictional engagement force between the self-tightening engagement gasket 4 and the upper pipeline terrace edge expansion end 2.2 is increased. Thereby make the utility model discloses an interface is never not hard up, has locking reliable, installation compact convenience, low cost's advantage.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides a self-clinching formula pipe connection device which characterized in that: the lower pipeline comprises an external thread, an inner side occlusion port and an inner side frustum receiving end, and the lower pipeline frustum receiving end comprises an outer side occlusion port; the upper pipeline comprises a prismatic table expansion end and a prismatic table insertion end, the upper pipeline prismatic table expansion end comprises friction stripes on the upper side, and the upper pipeline prismatic table insertion end comprises occlusion ports on the outer side and the inner side; the half flange connecting disc comprises an L-shaped buckle and an inner thread, the L-shaped buckle comprises an inner side sawtooth-shaped occlusion side, and the inner thread of the half flange connecting disc is matched with an outer thread of a lower pipeline terrace receiving end; the self-tightening bite pad includes a serrated bite side and a friction side.

2. A self-tightening pipe coupling device according to claim 1, wherein: the lower pipeline frustum receiving end occlusion port is matched with the upper pipeline frustum insertion end occlusion port in thread.

3. A self-tightening pipe coupling device according to claim 2, wherein: and the sawtooth occlusion side at the inner side of the L-shaped buckle of the half flange connection disc is matched with the sawtooth occlusion side of the self-tightening occlusion gasket.

4. A self-tightening pipe coupling device according to claim 3, wherein: and after the frustum receiving end is occluded with the frustum insertion end of the upper pipeline, epoxy resin is filled in the gap of the occlusion port.

5. A self-tightening pipe coupling device according to claim 4, wherein: the outer diameter and the inner diameter of the self-tightening occlusion gasket are respectively consistent with the inner diameter of the half-flange connecting disc and the outer diameters of the upper pipeline and the lower pipeline.

6. A self-tightening pipe coupling device according to claim 5, wherein: one side of the self-tightening gripping pad is provided with larger saw teeth, and the other side of the self-tightening gripping pad is provided with a stripe friction surface.

7. A self-tightening pipe coupling device according to claim 6, wherein: the width of the gap between the L-shaped buckle of the half flange connecting disc and the enlarged end of the upper pipeline terrace is the thickness of the self-tightening occluding gasket occluded with the L-shaped buckle.