Polypropylene HFB corrugated pipe with filtering structure

Abstract

The utility model relates to the technical field of corrugated pipes, in particular to a polypropylene HFB corrugated pipe with a filter structure, which comprises a corrugated pipe, a filter screen plate is arranged on the inner ring surface of one end of the corrugated pipe, and an assembly and disassembly component convenient to disassemble and assemble is arranged between the filter screen plate and the corrugated pipe. The mounting and dismounting assembly comprises a limiting pin which penetrates through the outer ring face of the corrugated pipe and is slidably inserted into the outer ring face of the filter screen plate, and the other end of the limiting pin is sleeved with a rubber sleeve and slidably connected with the outer ring face of the corrugated pipe through a reset spring. One side of the filter screen plate is connected with the perforated plate through a buffer assembly, the buffer assembly comprises a large spring, one end of the large spring is connected with the side wall of the filter screen plate, the other end is connected with a limiting rod, the limiting rod is connected with the perforated plate, the other end is connected with a limiting sleeve through a small spring, and the limiting sleeve is fixed on the side wall of the filter screen plate. The filter screen plate is convenient to disassemble and assemble through the assembly and disassembly assembly, replacement of the whole corrugated pipe is avoided, maintenance cost is reduced, and practicability is improved. Meanwhile, the buffer assembly effectively absorbs water flow impact, prolongs the service life of the filter screen plate, ensures stable filtering effect, and improves equipment reliability.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe technology, specifically a polypropylene HFB corrugated pipe with a filter structure. Background Technology

[0002] Polypropylene HFB corrugated pipe is a type of pipe product with a corrugated structure, made primarily from polypropylene resin through injection molding. The "HFB" in its name typically refers to the ring-shaped structure of the corrugated pipe, while the polypropylene material gives the pipe excellent corrosion resistance, high-temperature resistance, and lightweight properties. Due to its unique structural design and superior performance characteristics, polypropylene HFB corrugated pipe is widely used in building water supply and drainage, industrial sewage discharge, and agricultural irrigation, and is particularly suitable for applications requiring corrosion resistance and high flow rates.

[0003] In existing technologies, to prevent impurities in the water from entering the equipment or impurities in the equipment from being discharged with the water flow, a filter screen is usually fixedly installed at the inlet or outlet of the corrugated pipe. The function of the filter screen is to intercept solid particles or other impurities in the water flow, thereby protecting the equipment from damage by impurities and also improving the user experience.

[0004] However, in existing technologies, the filter screens fixed inside the corrugated pipe are prone to deformation or damage due to the continuous impact of water flow during long-term use, leading to a decrease in filtration efficiency or even failure. Because the filter screen is fixed inside the corrugated pipe, replacing or cleaning it is extremely inconvenient, usually requiring the entire corrugated pipe to be disassembled for replacement. This not only increases maintenance costs but also creates significant difficulties for installation and disassembly. Furthermore, frequent filter screen replacements reduce the overall lifespan of the corrugated pipe, thus affecting its practicality and reliability in real-world applications. Utility Model Content

[0005] The purpose of this invention is to provide a polypropylene HFB corrugated pipe with a filter structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a polypropylene HFB corrugated pipe with a filter structure, comprising: a corrugated pipe, a filter screen plate disposed on the inner ring surface of one end of the corrugated pipe, and an installation and removal assembly for easy disassembly of the filter screen plate between the filter screen plate and the corrugated pipe.

[0007] The installation and removal components include a limiting pin. One end of the limiting pin passes through the outer ring surface of the bellows and is slidably inserted into the outer ring surface of the filter plate. The other end of the limiting pin is fitted with a rubber sleeve, which is slidably inserted into the outer ring surface of the bellows through a return spring.

[0008] One side of the filter plate is connected to the perforated plate via a buffer assembly. The buffer assembly includes a large spring. One end of the large spring is fixedly connected to the side wall of the filter plate, and the other end of the large spring is fixedly connected to a limiting rod. One end of the limiting rod is fixedly connected to the perforated plate, and the other end of the limiting rod is slidably inserted into a limiting sleeve via a small spring. The limiting sleeve is fixedly connected to the side wall of the filter plate.

[0009] Preferably, connecting sleeves are fixedly fitted at both ends of the corrugated pipe, and the inner ring surface of the connecting sleeve is provided with internal threads.

[0010] Preferably, the outer surface of the filter plate has a groove, and the outer surface of the corrugated tube has a stepped hole at the corresponding position of the groove.

[0011] Preferably, one end of the limiting pin is slidably inserted into the groove, and the reset spring is fixedly connected between the stepped hole and the rubber sleeve.

[0012] Preferably, a retaining ring is fixedly connected to the inner ring surface of one end of the corrugated pipe near the filter screen plate, and one side of the retaining ring abuts against the limiting ring.

[0013] Preferably, the limiting ring is fixedly connected to one side of the perforated plate, the outer ring of the filter plate abuts against the inner wall of the corrugated pipe through a fixedly fitted rubber ring, the stepped hole penetrates the outer ring of the rubber ring, and the limiting pin is slidably fitted inside the rubber ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model makes the disassembly and installation of the filter plate more convenient by setting up the installation and disassembly components, avoiding the trouble of replacing the entire corrugated pipe required by the traditional fixed filter, reducing maintenance costs, and improving practicality.

[0016] 2. The buffer component of this utility model can effectively absorb the impact of water flow on the filter screen, extend the service life of the filter screen, and ensure the long-term stability of the filtration effect, thereby improving the overall reliability and user experience of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the overall structure of this utility model;

[0019] Figure 3 This is a top view of the internal structure of this utility model;

[0020] Figure 4 This is a bottom view of the internal structure of this utility model.

[0021] In the diagram: 1. Corrugated pipe; 2. Filter plate; 3. Limiting pin; 4. Rubber sleeve; 5. Return spring; 6. Perforated plate; 7. Large spring; 8. Limiting rod; 9. Small spring; 10. Limiting sleeve; 11. Connecting sleeve; 12. Internal thread; 13. Groove; 14. Stepped hole; 15. Retaining ring; 16. Limiting ring; 17. Rubber ring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Example 1: Please refer to Figures 1-4 This utility model provides a technical solution: a polypropylene HFB corrugated pipe with a filtration structure, comprising: a corrugated pipe 1, a filter screen plate 2 disposed on the inner surface of one end of the corrugated pipe 1, through which impurities in the water are further filtered; an installation and disassembly assembly is provided between the filter screen plate 2 and the corrugated pipe 1 to facilitate the installation and disassembly of the filter screen plate 2; the installation and disassembly assembly not only facilitates the disassembly of the filter screen plate 2, but also facilitates subsequent cleaning of the filter screen plate 2; the installation and disassembly assembly includes a limiting pin 3, one end of the limiting pin 3 penetrates through the outer surface of the corrugated pipe 1 and is slidably inserted into the outer surface of the filter screen plate 2, and the other end of the limiting pin 3 is fitted with a rubber sleeve 4, the rubber sleeve 4 being... The reset spring 5 is slidably inserted into the outer ring of the bellows 1. One side of the filter plate 2 is connected to the porous plate 6 through a buffer assembly. The buffer assembly is set to buffer the water liquid impacting the surface of the porous plate 6. The porous plate 6 has several through holes to facilitate the flow of water liquid. The buffer assembly includes a large spring 7. One end of the large spring 7 is fixedly connected to the side wall of the filter plate 2, and the other end of the large spring 7 is fixedly connected to the limiting rod 8. One end of the limiting rod 8 is fixedly connected to the porous plate 6, and the other end of the limiting rod 8 is slidably inserted into the limiting sleeve 10 through a small spring 9. The limiting sleeve 10 limits the limiting rod 8 and is fixedly connected to the side wall of the filter plate 2.

[0024] In use, the two ends of the bellows 1 are connected to the required equipment or components. In the initial state, the limiting pin 3 penetrates the outer ring surface of the bellows 1 and slides into the outer ring surface of the filter plate 2, thereby limiting and fixing the filter plate 2. When the water flows in the bellows 1 in the direction of the arrow, the water will come into contact with the porous plate 6 and impact it. As a result, the porous plate 6 will press the limiting rod 8 to move and the large spring 7 to compress. Under the deformation of the large spring 7, the impacting water is initially buffered. At the same time, the limiting rod 8 moves towards the filter plate 2 under the limitation of the limiting sleeve 10, which in turn compresses the small spring 9, further buffering the impacting water and preventing the filter plate 2 from being damaged. The filter screen 2 is easily damaged by water flow impact, which extends its service life and ensures stable filtration effect over a long period of time. When the filter screen 2 needs to be disassembled for maintenance and cleaning after a period of use, the limiting pin 3 is pulled outward. The limiting pin 3 stretches the return spring 5, causing the limiting pin 3 to slide out of the outer ring surface of the filter screen 2, thereby releasing the limiting of the filter screen 2. Then the filter screen 2 can be taken out for cleaning and maintenance. When the filter screen 2 needs to be installed, simply place the filter screen 2 in the bellows 1, release the limiting pin 3, and under the reverse elastic force of the return spring 5, the limiting pin 3 will be inserted into the filter screen 2 again, thus limiting and fixing it. This ultimately improves the ease of installation and disassembly of the filter screen 2.

[0025] Example 2: Based on Example 1, connecting sleeves 11 are fixedly sleeved at both ends of the corrugated pipe 1. The inner ring surface of the connecting sleeve 11 has an internal thread 12. The internal thread 12 on the inner ring surface of the connecting sleeve 11 facilitates the connection between the end of the corrugated pipe 1 and external equipment or components. The outer ring surface of the filter plate 2 has a groove 13. The groove 13 limits the positioning pin 3. The outer ring surface of the corrugated pipe 1 has a stepped hole 14 at the corresponding position of the groove 13. The stepped hole 14 and the groove 13 are arranged in a circumferential array. One end of the positioning pin 3 is slidably inserted into the groove 13. The return spring 5 is fixedly connected between the stepped hole 14 and the rubber sleeve 4. The rubber sleeve 4 is slidably inserted into the stepped hole 14, thereby improving the sealing performance of the stepped hole 14.

[0026] Example 3: Based on Example 2, a retaining ring 15 is fixedly connected to the inner ring surface of the filter plate 2 near the end of the corrugated pipe 1. One side of the retaining ring 15 abuts against the limiting ring 16, and the retaining ring 15 blocks and limits the limiting ring 16, thereby facilitating the positioning of the filter plate 2 during installation and improving the installation speed. The limiting ring 16 is fixedly connected to one side of the perforated plate 6. The outer ring surface of the filter plate 2 abuts against the inner wall of the corrugated pipe 1 through a fixedly sleeved rubber ring 17. The abutment between the rubber ring 17 and the inner wall of the corrugated pipe 1 improves the sealing performance of the connection between the filter plate 2 and the corrugated pipe 1. The stepped hole 14 penetrates the outer ring surface of the rubber ring 17, and the limiting pin 3 is slidably sleeved in the rubber ring 17, and the limiting pin 3 is further limited by the rubber ring 17.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polypropylene HFB corrugated pipe with a filter structure, comprising a corrugated pipe (1), characterized in that: A filter plate (2) is provided on the inner ring surface of one end of the corrugated pipe (1), and an installation and disassembly assembly is provided between the filter plate (2) and the corrugated pipe (1) to facilitate the installation and disassembly of the filter plate (2). The installation and removal components include a limiting pin (3), one end of which passes through the outer ring surface of the bellows (1) and is slidably inserted into the outer ring surface of the filter plate (2). The other end of the limiting pin (3) is fitted with a rubber sleeve (4), which is slidably inserted into the outer ring surface of the bellows (1) through a return spring (5). The filter plate (2) is connected to the perforated plate (6) on one side through a buffer assembly. The buffer assembly includes a large spring (7). One end of the large spring (7) is fixedly connected to the side wall of the filter plate (2), and the other end of the large spring (7) is fixedly connected to the limiting rod (8). One end of the limiting rod (8) is fixedly connected to the perforated plate (6), and the other end of the limiting rod (8) is slidably inserted into the limiting sleeve (10) through a small spring (9). The limiting sleeve (10) is fixedly connected to the side wall of the filter plate (2).

2. The polypropylene HFB corrugated pipe with a filter structure according to claim 1, characterized in that: The corrugated pipe (1) is fixedly fitted with connecting sleeves (11) at both ends, and the inner ring surface of the connecting sleeves (11) is provided with internal threads (12).

3. The polypropylene HFB corrugated pipe with a filter structure according to claim 2, characterized in that: The filter plate (2) has a groove (13) on its outer ring surface, and the corrugated pipe (1) has a stepped hole (14) on its outer ring surface corresponding to the groove (13).

4. The polypropylene HFB corrugated pipe with a filter structure according to claim 1, characterized in that: One end of the limiting pin (3) is slidably inserted into the groove (13), and the reset spring (5) is fixedly connected between the stepped hole (14) and the rubber sleeve (4).

5. A polypropylene HFB corrugated pipe with a filter structure according to claim 4, characterized in that: A retaining ring (15) is fixedly connected to the inner ring surface of one end of the corrugated pipe (1) near the filter plate (2), and one side of the retaining ring (15) abuts against the limiting ring (16).

6. A polypropylene HFB corrugated pipe with a filter structure according to claim 5, characterized in that: The limiting ring (16) is fixedly connected to one side of the perforated plate (6). The outer ring of the filter plate (2) abuts against the inner wall of the corrugated pipe (1) through the fixedly fitted rubber ring (17). The stepped hole (14) penetrates the outer ring of the rubber ring (17). The limiting pin (3) is slidably fitted inside the rubber ring (17).

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