CN216009955U

CN216009955U - High-density polyethylene pipeline joint sealing device

Info

Publication number: CN216009955U
Application number: CN202121851901.3U
Authority: CN
Inventors: 张伟
Original assignee: Chengdu Qiyu Technology Co ltd
Current assignee: Chengdu Qiyu Technology Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-03-11
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a high-density polyethylene pipeline joint sealing device which comprises an upper semicircular fastener and a lower semicircular fastener, wherein the upper semicircular fastener and the lower semicircular fastener are buckled up and down, a pipeline connecting channel is formed between the upper semicircular fastener and the lower semicircular fastener, two sealing rings are symmetrically arranged in the pipeline connecting channel, the sealing rings are attached to the outer wall of a pipeline to form a first high-strength sealing surface, upper wing plates are fixed on two sides of the upper semicircular fastener, lower wing plates are fixed on two sides of the lower semicircular fastener, sealing strips are arranged at the bottoms of the upper wing plates and located between the two sealing rings, and the upper wing plates are connected with the lower wing plates through connecting pieces and used for enabling the sealing strips to be attached to the lower wing plates to form a second high-strength sealing surface. The pipeline sealing device is convenient to detach and install, has strong sealing performance, and avoids leakage of transported objects inside the pipeline.

Description

High-density polyethylene pipeline joint sealing device

Technical Field

The utility model relates to the technical field of polyethylene pipeline connection, in particular to a high-density polyethylene pipeline joint sealing device.

Background

Engineering plastic pipes such as ethylene pipes and the like have great advantages compared with traditional pipes such as steel pipes and the like, and are mainly reflected in strong flexibility, corrosion resistance, small density, light weight and the like, but the connection mode is always a long-standing problem in the engineering field. For polyethylene pipes with higher working pressure and thicker pipe wall thickness, two connection modes are generally adopted, one mode adopts special equipment to carry out butt welding connection, namely two pipe sections are ground flat and aligned and are heated and pressurized by a polyethylene welding machine for welding, the mode has the problems of high equipment investment cost and reduced sealing property caused by corrosion of the welding part, and the polyethylene pipes are difficult to disassemble during pipeline maintenance or replacement; its two adoption ring flanges can dismantle the connection, at the tip installation ring flange of two pipelines promptly, realize the connection of two ring flanges through the bolt, have the advantage of being convenient for change and maintenance, and the installation effectiveness is high, but the leakproofness is relatively poor, has the installation clearance between two ring flanges, leads to the inside transportation thing of pipeline to spill over from the clearance easily, consequently current pipe connection device can not compromise the problem of convenient to detach and leakproofness simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide the high-density polyethylene pipeline joint sealing device which is convenient to disassemble and assemble, has strong sealing performance and avoids leakage of transported objects in the pipeline.

The purpose of the utility model is realized by the following technical scheme: the utility model provides a high density polyethylene pipe joint sealing device, includes semicircle fastener and lower semicircle fastener, lock about last semicircle fastener and lower semicircle fastener, it is formed with the pipe connection passageway to go up between semicircle fastener and the lower semicircle fastener, the symmetry is provided with two sealing washers in the pipe connection passageway, sealing washer laminating pipeline outer wall forms the sealed face of first excelling in, the both sides of going up the semicircle fastener are fixed with the pterygoid lamina, the both sides of semicircle fastener are fixed with down the pterygoid lamina down, the bottom of going up the pterygoid lamina is provided with the sealing strip, the sealing strip is located two between the sealing washer, it is used for making the sealing strip hug closely down pterygoid lamina formation second excelling in through the connecting piece and lower pterygoid lamina connection to go up the pterygoid lamina.

Further, a rectangular groove is formed in the bottom of the upper wing plate along the axis direction of the pipeline connecting channel, the sealing strip is arranged in the rectangular groove, and the thickness of the sealing strip is larger than the depth of the rectangular groove.

Further, the length of the sealing strip is equal to that of the rectangular groove.

Further, one side of the rectangular groove is communicated with the pipeline connecting channel, and two ends of the sealing strip are respectively contacted with the two sealing rings.

Further, first ring channels have been seted up to the symmetry on the last semicircle fastener, the both ends of rectangular channel respectively with two first ring channel intercommunication, set up the second ring channel corresponding with first ring channel on the semicircle fastener down, first ring channel is connected with the second ring channel and is formed circular seal groove, the sealing washer sets up in the circular seal groove.

Furthermore, a connecting ring is fixed on the lower semicircular fastener, the connecting ring is positioned in the pipeline connecting channel, and an annular step is fixed on the inner wall of the connecting ring.

Furthermore, elastic sealing gaskets are fixed on two end faces of the annular step, and the end part of the connecting pipeline is abutted against the annular step and deforms the elastic sealing gaskets to form a third high-strength sealing surface.

Further, the connecting piece comprises a bolt and a nut, and the upper wing plate is fixedly connected to the lower wing plate through the matching of the bolt and the nut.

The utility model has the beneficial effects that:

a high-density polyethylene pipeline joint sealing device, an upper semicircular fastener and a lower semicircular fastener are matched to form a pipeline connecting channel, two pipelines are butted in the pipeline connecting channel, then the upper semicircular fastener and the lower semicircular fastener are buckled, so that the sealing ring is deformed and tightly attached to the outer wall of the pipeline to form a first high-strength sealing surface, meanwhile, the sealing strip is deformed and tightly attached to the lower wing plate to form a second high-strength sealing surface, so that the first high-strength sealing surface formed by the two sealing rings seals the two ends of the butt joint of the pipelines, two sides of the joint of the pipeline are sealed by two sealing strips which are positioned at the two sides of the pipeline, and the two ends of the sealing strips are respectively contacted with the two sealing rings, thereby form sealed high strength seal face, improved sealing strength, the effectual inside transportation thing that prevents the pipeline leaks, is convenient for dismantle simultaneously and carries out the maintenance and the change of pipeline.

Drawings

FIG. 1 is a schematic view of the overall structure of a sealing device for a high density polyethylene pipe joint according to the present invention;

FIG. 2 is a perspective view of an upper semicircular fastener in the sealing device for a high density polyethylene pipe joint according to the present invention;

FIG. 3 is a perspective view of a lower semicircular fastener in the sealing device for a high density polyethylene pipe joint according to the present invention;

in the figure, 1-an upper semicircular fastener, 2-a lower semicircular fastener, 3-a pipeline connecting channel, 4-an upper wing plate, 5-a lower wing plate, 6-a sealing ring, 7-a sealing strip, 8-a rectangular groove, 9-a first annular groove, 10-a second annular groove, 11-a connecting ring, 12-an annular step, 13-an elastic sealing gasket, 14-a bolt and 15-a nut.

Detailed Description

The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.

Fig. 1 to 3 show, a high density polyethylene pipeline connects sealing device, including last semicircle fastener 1 and lower semicircle fastener 2, lock about last semicircle fastener 1 and lower semicircle fastener 2, be formed with pipe connection passageway 3 between last semicircle fastener 1 and the lower semicircle fastener 2, the symmetry is provided with two sealing washers 6 in pipe connection passageway 3, sealing washer 6 laminating pipeline outer wall forms first high-strength seal face, the both sides of last semicircle fastener 1 are fixed with upper wing plate 4, the both sides of lower semicircle fastener 2 are fixed with lower wing plate 5, the bottom of upper wing plate 4 is provided with sealing strip 7, sealing strip 7 is located between two sealing washers 6, upper wing plate 4 is connected with lower wing plate 5 through the connecting piece and is used for making sealing strip 7 hug closely lower wing plate 5 and forms the second high-strength seal face. The upper semicircular fastener 1 and the lower semicircular fastener 2 are matched to form a pipeline connecting channel 3, a connecting gap exists between the upper semicircular fastener 1 and the lower semicircular fastener 2, so that gaps exist on two sides of the pipeline connecting channel 3, the gaps are linear gaps, a pipeline needs to be arranged in the pipeline connecting channel 3 in a penetrating manner, gaps exist between the pipeline and the upper semicircular fastener 1 and between the pipeline and the lower semicircular fastener 2, the gaps are distributed at two ends of the pipeline connecting channel 3 and are annular gaps, the two pipelines are butted in the pipeline connecting channel 3, then the upper semicircular fastener 1 is buckled with the lower semicircular fastener 2, the sealing ring 6 is deformed and tightly attached to the outer wall of the pipeline to form a first high-strength sealing surface, the sealing strip 7 is deformed and tightly attached to the lower wing plate 5 to form a second sealing surface, and therefore two ends of the butt joint of the pipeline are sealed through the first high-strength sealing surface formed by the two sealing rings 6, seal the annular gap promptly, seal the both sides of pipeline junction through two sealing strips 7 that are located the pipeline both sides, seal the linear gap promptly, and the both ends of sealing strip 7 contact with two sealing washers 6 respectively to form sealed high-strength seal face, improved seal strength, the inside transportation thing of effectual prevention pipeline leaks, is convenient for simultaneously dismantle and carries out the maintenance and the change of pipeline.

Further, as shown in fig. 2 and 3, a rectangular groove 8 is formed at the bottom of the upper wing plate 4 along the axial direction of the pipeline connecting channel 3, a sealing strip 7 is arranged in the rectangular groove 8, the thickness of the sealing strip 7 is greater than the depth of the rectangular groove 8, so that the sealing strip 7 has a protruding part, the sealing strip 7 is deformed to be closely attached to the lower wing plate when being connected with the lower wing plate 5, the sealing strength is improved, the length of the sealing strip 7 is equal to that of the rectangular groove 8, one side of the rectangular groove 8 is communicated with the pipeline connecting channel 3, two ends of the sealing strip 7 are respectively contacted with two sealing rings 6, so that linear gaps at two sides of the pipeline connecting channel 3 are filled and sealed, first annular grooves 9 are symmetrically formed on the upper semicircular fastener 1, two ends of the rectangular groove 8 are respectively communicated with the two first annular grooves 9, a second annular groove 10 corresponding to the first annular grooves 9 is formed on the lower semicircular fastener 2, the first annular groove 9 and the second annular groove 10 are connected to form a circular sealing groove, and the sealing ring 6 is arranged in the circular sealing groove.

Further, as shown in fig. 3, a connection ring 11 is fixed on the lower semicircular fastener 2, the connection ring 11 is located in the pipe connection passage 3, an annular step 12 is fixed on the inner wall of the connection ring 11, the abutting position of the two pipelines is limited by the annular step 12, when the end part of the pipeline abuts against the annular step 12, the installation of the pipeline is finished, then the upper semicircular fastener 2 is buckled on the lower semicircular fastener 2 to complete the butt joint of the pipelines, the two end surfaces of the annular step 12 are both fixed with elastic sealing gaskets 13, the end part of the connecting pipeline is abutted against the annular step 12 and the elastic sealing gaskets 13 are deformed to form a third high-strength sealing surface, the third high-strength sealing surface is used for sealing the installation gap between the end part of the pipeline and the annular step 12, so that the leakage of transported objects from the gap between the end part of the pipeline and the annular step 12 is avoided, and the sealing strength of the joint sealing device is further improved.

Further, the connecting piece comprises a bolt 14 and a nut 15, and the upper wing plate 4 is fixedly connected to the lower wing plate 5 through the matching of the bolt 14 and the nut 15. The detachable connection of the upper semicircular fastener 1 and the lower semicircular fastener 2 is realized through the bolt 14, so that the sealing device is convenient to mount and dismount, and the maintenance and replacement of pipelines are convenient.

The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the utility model is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a high density polyethylene pipe joint sealing device, a serial communication port, including last semicircle fastener (1) and lower semicircle fastener (2), go up semicircle fastener (1) and semicircle fastener (2) lock from top to bottom down, it has pipe connection passageway (3) to go up to be formed with between semicircle fastener (1) and lower semicircle fastener (2), pipe connection passageway (3) interior symmetry is provided with two sealing washer (6), sealing washer (6) laminating pipeline outer wall forms first high-strength seal face, the both sides of going up semicircle fastener (1) are fixed with pterygoid lamina (4), the both sides of semicircle fastener (2) are fixed with pterygoid lamina (5) down, the bottom of going up pterygoid lamina (4) is provided with sealing strip (7), sealing strip (7) are located two between sealing washer (6), it is used for making sealing strip (7) hug closely pterygoid lamina (5) down and form second high-strength seal to go up pterygoid lamina (5) through connecting piece and lower pterygoid lamina (5) connection to go up pterygoid lamina (4), and be used for making sealing strip (7) hug closely lower pterygoid lamina (5) form second high-strength seal And (4) a cover.

2. The high-density polyethylene pipeline joint sealing device according to claim 1, wherein a rectangular groove (8) is formed in the bottom of the upper wing plate (4) along the axial direction of the pipeline connecting channel (3), the sealing strip (7) is arranged in the rectangular groove (8), and the thickness of the sealing strip (7) is larger than the depth of the rectangular groove (8).

3. A high density polyethylene pipe joint sealing device according to claim 2, wherein the length of the sealing strip (7) is equal to the length of the rectangular groove (8).

4. A high density polyethylene pipe joint sealing device according to claim 3, wherein one side of said rectangular groove (8) is communicated with said pipe connecting channel (3), and both ends of said sealing strip (7) are respectively contacted with two said sealing rings (6).

5. The sealing device for the high-density polyethylene pipeline joint according to claim 4, wherein the upper semicircular fastener (1) is symmetrically provided with first annular grooves (9), two ends of the rectangular groove (8) are respectively communicated with the two first annular grooves (9), the lower semicircular fastener (2) is provided with second annular grooves (10) corresponding to the first annular grooves (9), the first annular grooves (9) and the second annular grooves (10) are connected to form a circular sealing groove, and the sealing ring (6) is arranged in the circular sealing groove.

6. The sealing device for the pipe joint of high density polyethylene according to claim 1, wherein the lower semicircular fastener (2) is fixed with a connecting ring (11), the connecting ring (11) is located in the pipe connecting channel (3), and the inner wall of the connecting ring (11) is fixed with an annular step (12).

7. The sealing device for the pipe joint made of high-density polyethylene according to claim 6, wherein elastic sealing gaskets (13) are fixed on two end faces of the annular step (12), and the end part of the connecting pipe abuts against the annular step (12) and deforms the elastic sealing gaskets (13) to form a third high-strength sealing surface.

8. The sealing device for the pipe joint made of high-density polyethylene according to claim 1, wherein the connecting piece comprises a bolt (14) and a nut (15), and the upper wing plate (4) is fixedly connected to the lower wing plate (5) through the matching of the bolt (14) and the nut (15).