HDPE double-wall corrugated pipe

Abstract

The utility model relates to an HDPE (high-density polyethylene) double-wall corrugated pipe in the field of double-wall corrugated pipes, which comprises a pipe body, a corrugated part is formed on the outer surface of the pipe body, a through flow channel is formed in the pipe body, an insertion flange is formed at the end part of the pipe body, a connecting sleeve is mounted at the end part of the pipe body, insertion ends are formed at two ends of the connecting sleeve, and the insertion ends are connected with the corrugated part. A flow guide channel communicated with the flow channel is formed in the connecting sleeve, a guide piece capable of achieving rotational flow guiding is formed on the inner wall of the connecting sleeve, a filter screen plate is installed in the flow guide channel, filter holes are formed in the filter screen plate, and a stirring paddle is connected to the filter screen plate; according to the utility model, the fluid can generate a rotational flow effect through the spiral guide piece, the deposition of impurities in the pipeline when the fluid passes through the connecting sleeve is reduced, the blocking risk is reduced, the stirring paddle can further stir the fluid and the impurities attached and accumulated on the filter screen plate, the passing ability and fluidity of the fluid on the filter screen plate are improved, and the service life of the filter screen plate is prolonged. The use effect is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of double-wall corrugated pipes, in particular to a HDPE double-wall corrugated pipe. Background Art

[0002] As a pipe material widely used in many fields, double-wall corrugated pipes are used in municipal engineering, electrical and telecommunication engineering, industry, agriculture, garden engineering, road engineering, and mines. In municipal engineering, double-wall corrugated pipes are mainly used for underground drainage pipes, sewage pipes, water pipes, ventilation pipes, etc. of buildings. Their excellent corrosion resistance and wear resistance enable the pipes to operate stably for a long time in various harsh environments; in electrical and telecommunication engineering, double-wall corrugated pipes are used as protective pipes for power cables, optical cables, and communication signal cables, effectively ensuring the safe operation of cables. In addition, in industry, agriculture, garden engineering, and road engineering, double-wall corrugated pipes also play an irreplaceable role, providing strong support for infrastructure construction in various fields.

[0003] The basic structure of a double-walled corrugated pipe consists of two corrugated pipes connected in the middle by a special reinforcement layer. This structure not only ensures the strength and rigidity of the pipe, but also increases its compressive resistance. The reinforcement layer is usually made of high-strength polyester fiber material, which can effectively enhance the overall strength of the double-walled corrugated pipe. The corrugated structure of the outer wall and the inner wall is the same. This design ensures the fluidity and flexibility of the medium inside the corrugated pipe, so that the pipe can maintain stable performance when conveying the medium.

[0004] However, although double-wall corrugated pipes have a wide range of applications and unique structural advantages, they still have some significant defects. When the existing HDPE double-wall corrugated pipes are used for sewage and drainage, the sewage and drainage usually carry filtered impurities. When the flowing liquid in the double-wall corrugated pipe channel carries too many impurities, it will cause blockage inside the double-wall corrugated pipe. In addition, when the existing double-wall corrugated pipes are spliced ​​and assembled for use, the liquid fluidity at the splicing joints is poor, which causes the debris inside the flowing liquid to easily accumulate and block at the splicing joints, thereby affecting the fluidity of the flowing liquid in the double-wall corrugated pipe, affecting the stable use of the double-wall corrugated pipe, and reducing the service life of the pipe. Utility Model Content

[0005] The purpose of the utility model is to solve the above defects and provide a HDPE double-wall corrugated pipe to solve the technical problem in the above background technology that impurities inside the flowing liquid are easily attached and accumulated at the connection of the double-wall corrugated pipe, causing blockage inside the double-wall corrugated pipe, affecting the fluidity of the liquid and being unfavorable for stable use.

[0006] The purpose of the utility model is achieved by the following methods:

[0007] A HDPE double-wall corrugated pipe comprises a pipe body, a corrugated portion is formed on the outer surface of the pipe body, a conductive flow channel is formed inside the pipe body, a plug-in flange is formed at the end of the pipe body, a connecting sleeve is installed at the end of the pipe body through the plug-in flange, plug-in ends are formed at both ends of the connecting sleeve, the connecting sleeve is coaxially plugged with the plug-in flange of the pipe body through the plug-in end, a guide flow channel connected to the flow channel is formed inside the connecting sleeve, a guide member capable of swirl flow guidance is formed on the inner wall of the connecting sleeve, the guide member extends in a spiral manner along the axial direction of the connecting sleeve, a filter screen is installed in the guide flow channel of the connecting sleeve, a plurality of filter holes are opened on the filter screen, and a stirring paddle is connected to the filter screen through a mounting shaft.

[0008] Further in the above description, the outer surface of the plug-in end is provided with a snap-in groove, and the inner wall of the plug-in flange is formed with a snap-in protrusion. The plug-in end and the plug-in flange are matched and plugged in so that the snap-in groove and the snap-in protrusion are matched. The plug-in end is matched and plugged in with the plug-in flange so that the snap-in groove and the snap-in protrusion are matched, which can facilitate the subsequent fixed connection of the connecting sleeve and the pipe body by welding, flange connection, hot melt connection or other methods.

[0009] Optionally, when a flange connection or a clamp connection is used, when a blockage occurs in the connecting sleeve, the connecting sleeve section can be easily disassembled for cleaning and maintenance.

[0010] Further in the above description, a sealing ring is nested in the flow channel of the tube body near the plug-in flange, the plug-in end is coaxially connected to the flow channel, and the end face of the plug-in end is in contact with the sealing ring. The sealing ring is nested in the flow channel and is in close contact with the end of the plug-in end, so as to improve the sealing of the connection between the tube body and the connecting sleeve and prevent leakage.

[0011] Further in the above description, the guide member is composed of a guide plate, and the guide member is distributed in a spiral extension along the guide channel in the connecting pipe. The spiral extension of the guide member forms a vortex channel. The outer side surface of the guide member is connected to the inner wall of the guide channel. The spirally extended guide member is arranged to generate a rotating flow for the flowing liquid, which can increase the contact area between the fluid and the inner wall of the pipe, make the fluid more evenly distributed inside the pipe, and increase the flow pressure under rotation, so that it can carry the flowing liquid containing debris through the connection between the pipe body and the connecting sleeve, reduce the deposition of impurities in the guide channel, thereby improving the flow capacity of the connecting sleeve, and also help to reduce the occurrence of blockage.

[0012] Further in the above description, a mounting hole is provided on the filter screen plate, one end of the mounting shaft extends through the mounting hole to the guide member and is connected to the stirring paddle, a sleeve hole is provided on the stirring paddle, the sleeve hole is transitionally matched with the mounting shaft through a bearing, a plurality of stirring blades are formed on the outer side of the stirring paddle, and the filter plate provided can be used to intercept and filter impurities in the fluid, and when impurities accumulate, the rotating flowing liquid can drive the stirring blades to stir the intercepted impurities, making it convenient for the impurities to pass through the filter screen plate for discharge.

[0013] Further in the above description, the corrugated portion of the tube body is composed of wave crests and wave troughs arranged in an array in sequence, and a hollow corrugated ring is formed on the inner wall of the flow channel near the wave crests.

[0014] Further in the above description, both ends of the tube body are coaxially plugged into and matched with the connecting sleeve through corresponding plug-in flanges.

[0015] The beneficial effects of the utility model are as follows: by arranging a plug-in flange at the end of the pipe body and cooperating with the connecting sleeve for plugging and use, it is convenient to quickly and easily assemble and connect, so that the flow channel and the guide channel are connected, ensuring the continuous flow of the medium when passing through the flow channel and the guide channel. At the same time, the spirally extending guide member in the connecting sleeve can cause the fluid to produce a swirl effect, and the rotating flow makes the flow of the fluid smoother, reducing the deposition of impurities in the pipeline when the fluid passes through the connecting sleeve, reducing the risk of clogging, and by installing a filter screen in the guide channel of the connecting sleeve, impurities in the fluid can be effectively filtered, and the stirring paddle connected to the filter screen can further stir the fluid and the impurities attached and accumulated on the filter screen, so that the impurities under stirring can easily penetrate the filter screen and flow out, thereby improving the permeability and fluidity of the fluid in the filter screen and enhancing the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional diagram of this embodiment;

[0017] Figure 2 Schematic diagram of the internal structure of this embodiment;

[0018] Figure 3 Schematic diagram of the structure of the filter screen plate in this embodiment;

[0019] Figure 4 is a three-dimensional diagram of the connecting sleeve in this embodiment;

[0020] Figure 5 is a cross-sectional view of the connecting sleeve in this embodiment;

[0021] The reference numerals in the figure are: 1-tube body, 2-corrugated part, 3-flow channel, 4-plug-in flange, 5-connecting sleeve, 6-plug-in end, 7-flow guide channel, 8-guide member, 9-filter screen plate, 10-filter hole, 11-installation shaft, 12-stirring paddle, 13-clamping groove, 14-clamping protrusion, 15-sealing ring, 16-bearing, 17-stirring blade, 18-peak, 19-trough, 20-corrugated ring. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] In this embodiment, refer to Figure 1-Figure 5 A HDPE double-wall corrugated pipe is specifically implemented, comprising a pipe body 1, a corrugated portion 2 is formed on the outer surface of the pipe body 1, and a conductive flow channel 3 is formed inside the pipe body 1, a plug-in flange 4 is formed at the end of the pipe body 1, a connecting sleeve 5 is installed at the end of the pipe body 1 through the plug-in flange 4, plug-in ends 6 are formed at both ends of the connecting sleeve 5, the connecting sleeve 5 is coaxially matched and plugged with the plug-in flange 4 of the pipe body 1 through the plug-in end 6, and a guide flow channel 7 connected to the flow channel 3 is formed inside the connecting sleeve 5, a guide member 8 that can guide swirl is formed on the inner wall of the connecting sleeve 5, and the guide member 8 extends spirally along the axial direction of the connecting sleeve 5, a filter screen plate 9 is installed in the guide flow channel 7 of the connecting sleeve 5, a plurality of filter holes 10 are opened on the filter screen plate 9, and a stirring paddle 12 is connected to the filter screen plate 9 through a mounting shaft 11.

[0024] In this embodiment, the outer surface of the plug-in end 6 is provided with a snap-in groove 13, and the inner wall of the plug-in flange 4 is formed with a snap-in protrusion 14. The plug-in end 6 is matched and plugged with the plug-in flange 4, so that the snap-in groove 13 and the snap-in protrusion 14 are matched. The plug-in end 6 is matched and plugged with the plug-in flange 4, so that the snap-in groove 13 and the snap-in protrusion 14 are matched, which can facilitate the subsequent fixed connection of the connecting sleeve 5 and the pipe body 1 by welding, flange connection, hot melt connection or other methods.

[0025] Optionally, when flange connection or clamp connection is used, when blockage occurs in the connecting sleeve 5, the connecting sleeve 5 section can be easily disassembled for cleaning and maintenance.

[0026] In this embodiment, a sealing ring 15 is embedded in the flow channel 3 of the tube body 1 near the plug-in flange 4, the plug-in end 6 is coaxially connected to the flow channel 3, and the end face of the plug-in end 6 is in contact with the sealing ring 15. The sealing ring 15 is embedded in the flow channel 3 and is in close contact with the end of the plug-in end 6, so as to improve the sealing performance of the plug-in connection between the tube body 1 and the connecting sleeve 5 and prevent leakage.

[0027] In this embodiment, the guide member 8 is composed of a guide plate, and the guide member 8 is distributed in a spiral extension along the guide channel 7 in the connecting pipe. The spiral extension of the guide member 8 forms a vortex channel. The outer side surface of the guide member 8 is connected to the inner wall of the guide channel 7. The spirally extended guide member 8 is provided to generate a rotating flow for the flowing liquid, which can increase the contact area between the fluid and the inner wall of the pipeline, make the fluid more evenly distributed inside the pipeline, and increase the flow pressure under rotation, so that it can carry the flowing liquid containing debris through the connection between the pipe body 1 and the connecting sleeve 5, reduce the deposition of impurities in the guide channel, thereby improving the flow capacity of the connecting sleeve 5, and also help to reduce the occurrence of blockage.

[0028] In this embodiment, a mounting hole is provided on the filter screen plate 9, one end of the mounting shaft 11 extends through the mounting hole to the guide member 8 and is connected to the stirring paddle 12, a sleeve hole is provided on the stirring paddle 12, and the sleeve hole is transitionally matched with the mounting shaft 11 through a bearing 16, and a plurality of stirring blades 17 are formed on the outer side of the stirring paddle 12. The filter plate provided can be used to intercept and filter impurities in the fluid. When impurities accumulate, the rotating flowing liquid can drive the stirring blades 17 to stir the intercepted impurities, making it convenient for the impurities to pass through the filter screen plate 9 for discharge.

[0029] In this embodiment, the corrugated portion 2 of the tube body 1 is composed of an array of wave crests 18 and wave troughs 19 arranged in sequence, and a hollow corrugated ring 20 is formed on the inner wall of the flow channel 3 near the wave crests 18. Both ends of the tube body 1 are coaxially plugged and matched with the connecting sleeve 5 through corresponding plug-in flanges 4.

[0030] The specific use principle of this embodiment is: the end of the pipe body 1 is plugged and matched with the plug-in end 6 of the connecting sleeve 5 through the plug-in flange 4, so that the snap-in groove 13 on the outer surface of the plug-in end 6 is snap-matched with the snap-in protrusion 14 on the inner wall of the plug-in flange 4, which is convenient for subsequent assembly connection, so that the flow channel 3 is connected with the guide channel. After one end of the connecting sleeve 5 is connected to the pipe body 1, the other end of the connecting sleeve 5 is connected to the external fluid discharge end. When the fluid enters the spirally extending guide member 8 in the connecting sleeve 5, it can cause the fluid to produce a swirl effect, and the rotating flow makes the flow of the fluid smoother. The impurities in the fluid can be filtered out by the filter plate 9 installed by bolts in the guide channel of the connecting sleeve 5, and the impurities in the fluid can be filtered out effectively. The stirring paddle 12 connected to the filter plate 9 by the mounting shaft 11 can further stir the fluid and the impurities attached and accumulated on the filter plate 9 under the vortex of the rotating fluid, so that the impurities stirred can be easily flowed out from the filter plate 9, and the fluid can be discharged from the connecting sleeve 5 at the other end through the flow channel 3 of the pipe body 1, thereby improving the permeability and fluidity of the fluid in the double-wall corrugated pipe and enhancing the use effect.

[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A HDPE double-wall corrugated pipe, comprising a pipe body, a corrugated portion formed on the outer surface of the pipe body, a conductive flow channel formed inside the pipe body, and a plug-in flange formed at the end of the pipe body, characterized in that: A connecting sleeve is installed at the end of the pipe body through a plug-in flange, and plug-in ends are formed at both ends of the connecting sleeve. The connecting sleeve is coaxially plugged with the plug-in flange of the pipe body through the plug-in end, and a guide flow channel connected to the flow channel is formed inside the connecting sleeve. A guide member that can guide the swirl flow is formed on the inner wall of the connecting sleeve, and the guide member extends spirally along the axial direction of the connecting sleeve. A filter screen plate is installed in the guide flow channel of the connecting sleeve, and a plurality of filter holes are opened on the filter screen plate. A stirring paddle is connected to the filter screen plate through a mounting shaft.

2. The HDPE double-wall corrugated pipe according to claim 1, characterized in that: The outer surface of the plug-in end is provided with a clamping groove, and the inner wall of the plug-in flange is formed with a clamping protrusion. The plug-in end and the plug-in flange are matched and plugged in, so that the clamping groove and the clamping protrusion are buckled and matched.

3. The HDPE double-wall corrugated pipe according to claim 2, characterized in that: A sealing ring is nested in the flow channel of the pipe body close to the plug-in flange, the plug-in end is coaxially connected to the flow channel, and the end face of the plug-in end is in contact with the sealing ring.

4. The HDPE double-wall corrugated pipe according to claim 1, characterized in that: The guide member is composed of a guide plate, which is distributed along the guide channel in the connecting pipe in a spiral manner, the spiral extension of the guide member forms a swirl channel, and the outer side surface of the guide member is connected to the inner wall of the guide channel.

5. A HDPE double-wall corrugated pipe according to any one of claims 1 to 4, characterized in that: The filter plate is provided with a mounting hole, one end of the mounting shaft extends through the mounting hole to the guide member and is connected to the stirring paddle. The stirring paddle is provided with a sleeve hole, and the sleeve hole is transitionally matched with the mounting shaft through a bearing. A plurality of stirring blades are formed on the outer side of the stirring paddle.

6. A HDPE double-wall corrugated pipe according to any one of claims 1 to 4, characterized in that: The corrugated portion of the tube body is composed of wave crests and wave troughs arranged in an array in sequence, and a hollow corrugated ring is formed on the inner wall of the flow channel near the wave crests.

7. A HDPE double-wall corrugated pipe according to any one of claims 1 to 4, characterized in that: The two ends of the tube body are coaxially plugged and matched with the connecting sleeve through corresponding plug-in flanges.

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