CN216307065U

CN216307065U - Reinforced PE pipe

Info

Publication number: CN216307065U
Application number: CN202123048211.7U
Authority: CN
Inventors: 卜亚祥; 刘承光; 颜爱忠
Original assignee: Jiangsu Zhongsu Water Saving Technology Co ltd
Current assignee: Jiangsu Zhongsu Water Saving Technology Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-04-15
Anticipated expiration: 2031-12-07

Abstract

The utility model relates to the technical field of PE pipes, in particular to a reinforced PE straight pipe, an L-shaped joint and a flange assembly, wherein the L-shaped joint is provided with two connecting ends. The connecting end is provided with a slot for splicing the reinforced PE straight pipe. The two slots are connected through the cavity. The outer wall of the connecting end is provided with a clamping groove. The bottom of the slot is provided with an annular boss. The annular boss is provided with a sealing gasket. And a sealing structure is arranged on the side wall of the slot. And the left clamping plate in the flange plate assembly is connected with the right clamping plate through a connecting piece. A clamping hole is formed between the left clamping plate and the right clamping plate. The side wall of the clamping groove forms axial limit to the end face of the clamping hole. And locking structures connected with the end parts of the reinforced PE straight pipes are arranged in the mounting holes on the left clamping plate and the right clamping plate. The utility model can realize the connection and steering between pipelines in long distance and complex terrain, and improve the connection strength between the pipelines and the sealing property of the pipelines.

Description

Reinforced PE pipe

Technical Field

The utility model relates to the technical field of PE (polyethylene) pipes, in particular to a reinforced PE pipe which can be used for sealing connection of reinforced PE pipes.

Background

In the construction of water pipelines for large-scale automated agricultural water, PE pipes, i.e. polyethylene plastic pipes, are usually used as the pipelines. Compared with the traditional steel pipe, the PE pipe has the advantages of lighter weight, corrosion resistance and longer service life. When the hot melt butt joint device is used, the PE pipes are installed and connected in a mode that after the two PE pipes are in butt joint end to end, the hot melt butt joint is implemented by using a special hot melt tool. Such as electrofusion docking, socket-and-spigot, and direct-fusion docking.

In the laying process of long-distance water pipelines, soil layers penetrated by the pipelines are relatively complex, especially under the condition that the content of sand and stone is higher suddenly, the water supply pipelines are usually laid by adopting reinforced PE pipes in order to improve the safety and reliability of the water supply pipelines. Therefore, as the reinforced layer for improving the structural strength of the pipe wall is additionally arranged in the PE pipe, the connection strength of the joint and the sealing performance of the pipe are difficult to ensure by adopting a hot-melting butt joint mode between the pipes. Especially, at the bent part of the pipeline, the common PE pipe can be subjected to pipeline bending through a hot bending process, and after the reinforced PE pipe is subjected to the hot bending process, the reinforced layer is easily damaged, so that the performance of the pipeline is influenced.

Disclosure of Invention

The utility model aims to provide an easily-connected reinforced PE pipe, which can be used for connecting two adjacent sections of pipelines under a complex terrain, realizing the steering of the pipelines, ensuring the connection strength between the pipelines and further improving the sealing property of the pipelines.

In order to achieve the purpose, the utility model adopts the following scheme: the reinforced PE pipe comprises a reinforced PE straight pipe, an L-shaped joint and a flange assembly;

the L-shaped joint is provided with two connecting ends, the connecting ends are provided with inserting grooves for inserting reinforced PE straight pipes, the two inserting grooves are connected through a cavity, the outer wall of each connecting end is provided with a clamping groove for mounting a flange plate assembly, the bottom of each inserting groove is provided with an annular boss, each annular boss is provided with a sealing gasket, and the side wall of each inserting groove is provided with a sealing structure;

the flange plate assembly comprises a left clamping plate and a right clamping plate, the left clamping plate is connected with the right clamping plate through a connecting piece, a clamping hole is formed between the left clamping plate and the right clamping plate, the side wall of the clamping groove axially limits the end face of the clamping hole, mounting holes are formed in the left clamping plate and the right clamping plate, and a locking structure connected with the end portion of the reinforced PE straight pipe is arranged in the mounting holes.

Preferably, the end of the reinforced PE straight pipe is provided with a limiting groove, a flange plate assembly is installed in the limiting groove, and the flange plate assembly on the reinforced PE straight pipe is connected with the flange plate assembly on the L-shaped joint through a locking structure. So set up, the tip that is convenient for add the muscle PE straight tube links to each other with the link that L shape connects, is favorable to exerting axial pressure to the seal ring of slot bottom through locking structure for seal ring keeps the compressive deformation, and then has further improved the sealing performance of pipeline junction.

Preferably, the locking structure comprises a first bolt, a locking end of the first bolt is connected with the end part of the reinforced PE straight pipe through a first flat washer, and a threaded end of the first bolt forms locking with a flange plate assembly on the L-shaped joint through a first locknut. So set up, be favorable to adding muscle PE straight tube and L shape to connect and realize rapid Assembly, simultaneously, through adjusting the length that closes soon of first lock nut on first bolt for locking structure has realized the regulation to seal ring received axial pressure, according to the operating mode of in-service use, regularly screws up first lock nut, is favorable to further improving seal ring's sealed ageing.

Preferably, the sealing structure comprises a sealing groove, and an O-shaped sealing ring is arranged in the sealing groove. So set up, the O shape sealing washer in the seal groove forms the side seal on the outer wall of muscle PE straight tube, has further improved the sealed effect of pipeline junction, and the O shape sealing washer not only is applicable to static sealed operating mode, still is applicable to the axial reciprocating motion's under the low-speed operating mode, consequently has under the condition of axial skew at the pipeline, and the O shape sealing washer still can guarantee the validity of side seal.

Preferably, the sealing grooves are arranged at equal intervals along the axial direction of the slot. So set up, be favorable to forming multichannel side seal on the outer wall of muscle PE straight tube, and then promoted the leakproofness of pipeline.

Preferably, the connecting piece comprises a second bolt, the locking end of the second bolt is connected with the left clamping plate through a second flat washer, and the threaded end of the second bolt is locked with the right clamping plate through a second locknut. So set up, with the flange subassembly lock solid in the draw-in groove during site operation of being convenient for, utilize the screw locking power of second bolt and second lock nut to exert radial force to the bottom of draw-in groove, avoided the flange subassembly to produce along the axial of pipeline and rotate, be favorable to further improving the joint strength between the pipeline.

Preferably, the acute included angle formed between the center lines of the two connecting ends of the L-shaped joint is 45-90 degrees. Therefore, the elbow connecting structure is suitable for more steering occasions, the structural design of laying pipelines is optimized, and the total length of the pipelines is reduced.

Preferably, the depth of the slot is 80mm to 150 mm. So set up, be favorable to optimizing the overlap ratio that adds muscle PE straight tube and L shape connect, when having guaranteed joint strength and leakproofness between the pipeline, increased the effective use length who adds muscle PE straight tube.

Compared with the prior art, the reinforced PE pipe provided by the utility model has the following substantive characteristics and progresses:

1. according to the reinforced PE pipe, the connection between two sections of reinforced PE straight pipes is realized by utilizing the slots in the connecting end of the L-shaped joint through the bent pipe connecting structure, the pipeline steering under the complex terrain is realized, and the flange disc assembly on the outer wall of the connecting end and the end of the reinforced PE straight pipe are locked through the locking structure, so that the connecting strength between the pipelines is improved;

2. axial pressure is applied to the sealing washer at the bottom of the slot through the locking structure in the elbow connecting structure, so that the sealing washer is deformed under pressure, the sealing performance of a pipeline joint is improved, and meanwhile, the sealing structure arranged on the side wall of the slot forms side sealing on the outer wall of the reinforced PE straight pipe, so that the sealing performance of the pipeline is further improved.

Drawings

FIG. 1 is a schematic structural diagram of a reinforced PE pipe in an embodiment of the utility model;

FIG. 2 is a schematic view of an assembly structure of the reinforced PE pipe in FIG. 1;

FIG. 3 is a cross-sectional view of the reinforced PE pipe joint of FIG. 1.

Reference numerals: reinforced PE straight tube 1, L shape connect 2, ring flange subassembly 3, draw-in groove 4, seal groove 5, locking structure 6, seal ring 7, annular boss 8, left cardboard 31, right cardboard 32, mounting hole 33, connecting piece 34.

Detailed Description

The following detailed description of embodiments of the utility model refers to the accompanying drawings.

The reinforced PE pipe provided by the embodiment of the utility model is combined with the drawings shown in FIGS. 1 and 2, so that the pipelines are easy to connect and turn in the process of laying the water pipeline at a long distance, and the traditional hot melting tool equipment is not used for connecting and turning the pipelines. In the design process of the utility model, the connection between two sections of reinforced PE straight pipes is realized by using the slot in the connecting end of the L-shaped joint by using the bent pipe connecting structure, and the steering and laying of the pipeline for laying water delivery in complicated terrains and long distances are realized. In some embodiments, the flange plate assembly on the outer wall of the connecting end and the end of the reinforced PE straight pipe are locked through the locking structure, so that the connecting strength between pipelines is improved.

The reinforced PE pipe of the embodiment shown in FIG. 1 comprises a reinforced PE straight pipe 1, an L-shaped joint 2 and a flange assembly 3.

As shown in fig. 2, the L-shaped joint 2 has two connection ends. The connecting end is provided with a slot for inserting the reinforced PE straight pipe 1. The two slots are connected through the cavity. And a clamping groove 4 for mounting the flange plate assembly 3 is formed in the outer wall of the connecting end.

As shown in fig. 3, the bottom of the socket is provided with an annular boss 8. The annular boss 8 is provided with a sealing gasket 7. And a sealing structure is arranged on the side wall of the slot.

As shown in fig. 2, the flange assembly 3 includes a left flange plate 31 and a right flange plate 32. The left catch plate 31 is connected to the right catch plate 32 by a connector 34. A catching hole is formed between the left catching plate 31 and the right catching plate 32.

The side wall of the clamping groove 4 forms axial limit to the end face of the clamping hole.

The left card board 31 and the right card board 32 are both provided with mounting holes 33. And a locking structure 6 connected with the end part of the reinforced PE straight pipe is arranged in the mounting hole 33.

The locking structure 6 comprises a first bolt, the locking end of the first bolt is connected with the end part of the reinforced PE straight pipe through a first flat washer, and the threaded end of the first bolt forms locking with the flange plate assembly 3 on the L-shaped joint 2 through a first locknut. So set up, be favorable to adding muscle PE straight tube and L shape to connect 2 realization rapid Assembly.

Meanwhile, the locking structure 6 adjusts the axial pressure applied to the sealing washer 7 by adjusting the screwing length of the first locknut on the first bolt, and the first locknut is screwed up regularly according to the working condition of practical use, so that the sealing timeliness of the sealing washer 7 is improved further.

The connector 34 includes a second bolt. The locking end of the second bolt is connected to the left catch plate 31 via a second flat washer. The threaded end of the second bolt is locked with the right clamping plate 32 through a second locknut.

So set up, with flange dish subassembly 3 lock solid in draw-in groove 4 during site operation of being convenient for, utilize the screw locking power of second bolt and second lock nut to apply radial force to the bottom of draw-in groove 4, avoided flange dish subassembly 3 to produce along the axial of pipeline and rotate, be favorable to further improving the joint strength between the pipeline.

In an alternative embodiment, the first bolt and the second bolt may both be a full thread hexagon head bolt of GB/T5783. The first locknut and the second locknut can be the 1-type nonmetal insert hexagonal locknut of GB/T889.1.

For example, as shown in fig. 2, the end of the reinforced PE straight pipe is provided with a stopper groove. And a flange plate component 3 is arranged in the limiting groove. And the flange plate assembly 3 on the reinforced PE straight pipe is connected with the flange plate assembly 3 on the L-shaped joint 2 through a locking structure 6. So set up, the tip that is convenient for add the muscle PE straight tube links to each other with the link that L shape connects 2, is favorable to exerting axial pressure to seal ring 7 of slot bottom through locking structure 6 for seal ring 7 keeps the compressive deformation, and then has further improved the sealing performance of pipeline junction.

As shown in fig. 3, the sealing structure includes a sealing groove 5. An O-shaped sealing ring is arranged in the sealing groove 5. So set up, the O shape sealing washer in seal groove 5 forms the side seal on the outer wall that adds muscle PE straight tube 1, has further improved the sealed effect of pipeline junction. The O-shaped sealing ring is not only suitable for the working condition of static sealing, but also suitable for the working condition of axial reciprocating motion at low speed, so that the O-shaped sealing ring still can ensure the effectiveness of side sealing under the condition that the pipeline has axial deviation.

Wherein, seal groove 5 is the equidistant arrangement along the axial of slot. So set up, be favorable to forming multichannel side seal on the outer wall that adds muscle PE straight tube 1, and then promoted the leakproofness of pipeline. For example, as shown in fig. 3, 3 sealing grooves 5 are arranged at equal intervals in the axial direction of the slot, and 3 side seals are formed on the outer wall of the reinforced PE straight pipe 1.

The depth of the slot can be selected to be 80mm-150 mm. So set up, be favorable to optimizing the overlap ratio that adds muscle PE straight tube 1 and L shape connect 2, when having guaranteed joint strength and leakproofness between the pipeline, increased the effective use length who adds muscle PE straight tube.

The acute included angle formed between the center lines of the two connecting ends of the L-shaped joint 2 is 45-90 degrees. So set up for return bend connection structure is applicable to more and turns to the occasion, is favorable to optimizing the structural design who lays the pipeline, has reduced the total length of pipeline.

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the utility model.

Claims

1. A reinforced PE pipe is characterized by comprising a reinforced PE straight pipe, an L-shaped joint and a flange assembly;

2. The reinforced PE pipe according to claim 1, wherein a limiting groove is formed in the end of the reinforced PE straight pipe, a flange plate assembly is installed in the limiting groove, and the flange plate assembly on the reinforced PE straight pipe is connected with the flange plate assembly on the L-shaped joint through a locking structure.

3. The reinforced PE pipe as claimed in claim 1 or 2, wherein the locking structure comprises a first bolt, a locking end of the first bolt is connected with the end of the reinforced PE straight pipe through a first flat washer, and a threaded end of the first bolt is locked with a flange plate assembly on the L-shaped joint through a first locknut.

4. The reinforced PE tube of claim 3 wherein the sealing structure comprises a sealing groove with an O-ring disposed therein.

5. The reinforced PE pipe of claim 4, wherein the sealing grooves are arranged at equal intervals along the axial direction of the slot.

6. The reinforced PE pipe of claim 1, wherein the connector comprises a second bolt, a locking end of the second bolt is connected with the left clamping plate through a second flat washer, and a threaded end of the second bolt is locked with the right clamping plate through a second locknut.

7. The reinforced PE pipe of claim 1 wherein the acute included angle formed between the centerlines of the two connection ends of the L-shaped joint is 45 ° -90 °.

8. The reinforced PE tube of claim 1 wherein the slots are 80mm to 150mm deep.