FRPP (Fiber Reinforced Polypropylene) pipe assembly with wear-resistant lining

Abstract

The FRPP pipe assembly with the wear-resistant lining comprises an FRPP pipe body, a lining pipe body is installed at the inner end of the FRPP pipe body, the length of the FRPP pipe body is equal to that of the lining pipe body, a plurality of arc-shaped outer supporting rings are fixedly connected to the outer end of the lining pipe body at equal intervals from front to back, a plurality of strip-shaped reinforcing ribs are fixedly connected to the front ends and the rear ends of the arc-shaped outer supporting rings, and the strip-shaped reinforcing ribs are fixedly connected to the outer ends of the arc-shaped outer supporting rings. According to the scheme, the lining pipe body is additionally arranged in the FRPP pipe body, the lining pipe body can play a role in double-layer protection, the strip-shaped reinforcing ribs are arranged between the arc-shaped outer supporting rings, the arc-shaped outer supporting rings are arranged between the arc-shaped outer supporting rings, the arc-shaped outer supporting rings are arranged between the arc-shaped outer supporting rings, and the arc-shaped outer supporting rings are arranged between the arc-shaped outer supporting rings and the arc-shaped outer supporting rings. And the triangular compression-resistant supports are annularly arranged outside the strip-shaped reinforcing ribs, so that the internal wear resistance and the external compression resistance of the FRPP pipe body in the use process are effectively improved, the use functionality of the FRPP pipe body is effectively improved, and the operation efficiency of the FRPP pipe body is guaranteed.

Description

Technical Field

[0001] This utility model relates to an FRPP pipe assembly with a wear-resistant inner lining, belonging to the technical field of water supply pipe fittings. Background Technology

[0002] FRPP pipe (glass fiber reinforced polypropylene pipe) is produced using glass fiber modified polypropylene material treated with coupling agent. It is manufactured according to HG20539-92 standard, with specifications of DN15-DN800mm, pressure of 0.4-1.0MPa, corrosion resistance, high temperature resistance, high pressure resistance, hygiene and non-toxicity, and recyclability. It is suitable for conveying corrosive liquids (such as acid and alkali solutions) and municipal water supply and drainage systems.

[0003] A high-strength, corrosion-resistant FRPP duct with Chinese patent number CN214466708U includes an FRPP duct body, a connecting plate fixed to one end of the FRPP duct body, a threaded hole inside the connecting plate, and a reinforcing mechanism connected to the outside of the connecting plate. This utility model features an FRPP duct body with a corrosion-resistant layer of chlorinated polyvinyl chloride, which has good heat resistance and flame retardancy, increased tensile strength and melt viscosity, and good chemical corrosion resistance, thus improving the corrosion resistance of this device.

[0004] When using FRPP pipes, which are single-layer designs, once wear occurs and a break occurs, the water flowing through the FRPP pipe will overflow directly, which is not conducive to ensuring the water conveyance efficiency of the FRPP pipe. Therefore, it is necessary to design an FRPP pipe assembly with a protective function and a wear-resistant inner lining to solve the above problems.

[0005] To address this, an FRPP pipe assembly with a wear-resistant inner lining is proposed. Utility Model Content

[0006] In view of this, the present invention provides an FRPP pipe assembly with a wear-resistant inner lining to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial alternative.

[0007] The technical solution of this utility model is implemented as follows: an FRPP pipe assembly with a wear-resistant inner liner includes an FRPP pipe body, an inner liner pipe body installed at the inner end of the FRPP pipe body, the lengths of the FRPP pipe body and the inner liner pipe body are equal, and multiple arc-shaped outer support rings are fixedly connected at equal intervals from front to back at the outer end of the inner liner pipe body. Multiple strip-shaped reinforcing ribs are fixedly connected at both the front and rear ends of the arc-shaped outer support rings, and the corresponding multiple strip-shaped reinforcing ribs are arranged in a ring shape. A triangular anti-compression bracket is fixedly connected between two adjacent strip-shaped reinforcing ribs.

[0008] More preferably, the arc-shaped outer support ring, the strip-shaped reinforcing rib, and the triangular compression-resistant support are all located between the FRPP tube body and the inner lining tube body.

[0009] More preferably, the outer end of the arc-shaped outer support ring is connected to the inner wall of the FRPP tube, and the apex of the triangular pressure-resistant bracket is connected to the inner wall of the FRPP tube.

[0010] More preferably, the inner end of the inner lining tube is fixedly connected with multiple strip-shaped inner grooves, and the four corners of the outer end of the hollow inner wall scraper ring are all fixedly connected with protruding sliders.

[0011] More preferably, the inner end of the FRPP tube is slidably connected to a hollow inner wall scraper ring, and multiple protruding sliders correspond to the corresponding strip-shaped inner grooves.

[0012] More preferably, multiple strip-shaped inner grooves are located around the inner sidewall of the inner lining tube, and a triangular inner support is fixedly connected to the inner end of the hollow inner wall scraper ring.

[0013] More preferably, a tension rope is fixedly connected to the middle of the triangular inner support, and a hollow ring is fixedly connected to the end of the tension rope away from the triangular inner support.

[0014] More preferably, the inner wall of the inner lining tube is fixedly connected with a wear-resistant inner layer, and water penetrates the inner end of the inner lining tube.

[0015] The present invention has the following advantages due to the adoption of the above technical solution:

[0016] I. This solution involves adding an inner liner to the FRPP pipe body. The inner liner provides double-layer protection, enhancing the pressure-bearing capacity of the inner wall of the FRPP pipe during water flow. Simultaneously, multiple arc-shaped external support rings are installed between the FRPP pipe body and the inner liner, forming segmented abutment within the gap layer. Strip-shaped reinforcing ribs are placed between these rings, and triangular pressure-resistant supports are annularly installed around these ribs. Utilizing the structural characteristics of these triangular supports, a high-pressure-bearing module is formed within the FRPP pipe body, distributing the external compressive force and preventing deformation under pressure. This effectively improves the internal wear resistance and external pressure resistance of the FRPP pipe during use, enhancing its functionality and ensuring operational efficiency.

[0017] Second, a hollow inner wall scraper ring is also provided on the inner side of the inner liner tube, which is slidably connected by a strip-shaped inner groove. The hollow inner wall scraper ring is placed inside the inner liner tube. The space outside the triangular inner support in the hollow inner wall scraper ring can meet the overflow function of water. When the staff disassembles the FRPP tube body for maintenance work on the inner liner tube body, they can pull the tension rope on one side of the FRPP tube body to slide the hollow inner wall scraper ring on the other side from the FRPP tube body, so that the outer wall of the hollow inner wall scraper ring slides in close contact with the inner wall of the inner liner tube body, and evenly scrapes away the auxiliary materials on the inner side of the inner liner tube body, further ensuring the service life of the inner liner tube body.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the axial structure of the FRPP tube body of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the FRPP pipe body of this utility model;

[0022] Figure 3 For the present utility model Figure 2 Schematic diagram of the partially truncated and enlarged structure;

[0023] Figure 4 This is a schematic diagram of the hollow inner wall scraper ring of this utility model;

[0024] Figure 5 This is an enlarged structural schematic diagram of the hollow inner wall scraper ring of this utility model.

[0025] Reference numerals: 1. FRPP pipe body; 2. Inner liner pipe body; 3. Arc-shaped outer support ring; 4. Strip-shaped reinforcing rib; 6. Triangular compression brace; 7. Strip-shaped inner groove; 8. Hollow inner wall scraper ring; 9. Outer protruding slider; 10. Triangular inner support frame; 11. Tension rope; 12. Hollow ring; 13. Wear-resistant inner layer. Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0028] Example 1

[0029] like Figure 1-5 As shown, this utility model embodiment provides an FRPP pipe assembly with a wear-resistant inner liner, including an FRPP pipe body 1, an inner liner pipe body 2 installed at the inner end of the FRPP pipe body 1, the FRPP pipe body 1 and the inner liner pipe body 2 having the same length, and multiple arc-shaped outer support rings 3 fixedly connected at equal intervals from front to back at the outer end of the inner liner pipe body 2, and multiple strip-shaped reinforcing ribs 4 fixedly connected at both the front and rear ends of the arc-shaped outer support rings 3, with the corresponding multiple strip-shaped reinforcing ribs 4 arranged in a ring shape, and a triangular anti-compression bracket 6 fixedly connected between two adjacent strip-shaped reinforcing ribs 4.

[0030] The arc-shaped outer support ring 3, the strip-shaped reinforcing rib 4, and the triangular pressure-resistant bracket 6 are all located between the FRPP pipe body 1 and the inner liner pipe body 2. The outer end of the arc-shaped outer support ring 3 is connected to the inner wall of the FRPP pipe body 1, and the apex of the triangular pressure-resistant bracket 6 is connected to the inner wall of the FRPP pipe body 1. The inner wall of the inner liner pipe body 2 is fixedly connected with a wear-resistant inner layer 13, and water penetrates through the inner end of the inner liner pipe body 2.

[0031] Example 2

[0032] In one embodiment, the inner end of the inner liner tube 2 is fixedly connected with a plurality of strip-shaped inner grooves 7, and the four corners of the outer end of the hollow inner wall scraper ring 8 are fixedly connected with outwardly protruding sliders 9. The inner end of the FRPP tube 1 is slidably connected with the hollow inner wall scraper ring 8. The plurality of outwardly protruding sliders 9 correspond to the corresponding strip-shaped inner grooves 7, and the plurality of strip-shaped inner grooves 7 are respectively located around the inner sidewall of the inner liner tube 2.

[0033] A triangular inner support frame 10 is fixedly connected to the inner end of the hollow inner wall scraping ring 8. A tension rope 11 is fixedly connected to the middle of the triangular inner support frame 10. A hollow ring 12 is fixedly connected to the end of the tension rope 11 away from the triangular inner support frame 10.

[0034] In operation, this invention addresses the following: When the FRPP pipe body 1 is used, its single-layer design means that if wear occurs, causing a break, the water flowing through it will overflow, compromising its water delivery efficiency. Therefore, an inner liner 2 is added inside the FRPP pipe body 1. This inner liner 2 provides double-layer protection, increasing the pressure resistance of the inner wall of the FRPP pipe body 1 during water flow. Multiple arc-shaped outer support rings 3 are also installed between the FRPP pipe body 1 and the inner liner 2, serving as segmented abutments. Strip-shaped reinforcing ribs 4 are placed between these rings, and triangular pressure-resistant supports 6 are annularly arranged around the reinforcing ribs 4. These supports 6 utilize their structural characteristics to form a high-pressure-bearing module within the FRPP pipe body 1, further enhancing the water delivery efficiency. The external pressure on the FRPP pipe body 1 is distributed to prevent deformation under pressure, effectively improving the internal wear resistance and external pressure resistance of the FRPP pipe body 1 during use, thus improving its functionality and ensuring its operating efficiency. Simultaneously, a hollow inner wall scraper ring 8 is slidably connected to the inner wall of the inner liner pipe body 2 via a strip-shaped inner groove 7. The space outside the triangular inner support 10 within the hollow inner wall scraper ring 8 allows for water overflow. Furthermore, when workers disassemble the FRPP pipe body 1 for maintenance of the inner liner pipe body 2, they can pull the tension rope 11 on one side of the FRPP pipe body 1 to slide the hollow inner wall scraper ring 8 from the inside of the FRPP pipe body 1, allowing the outer wall of the hollow inner wall scraper ring 8 to slide against the inner wall of the inner liner pipe body 2, evenly scraping away the auxiliary materials inside the inner liner pipe body 2, further ensuring its service life.

[0035] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An FRPP pipe assembly with a wear-resistant inner liner, characterized in that: The FRPP tube (1) is equipped with an inner liner tube (2) at its inner end. The FRPP tube (1) and the inner liner tube (2) are of equal length. Multiple arc-shaped outer support rings (3) are fixedly connected at equal intervals from front to back at the outer end of the inner liner tube (2). Multiple strip-shaped reinforcing ribs (4) are fixedly connected at both ends of the arc-shaped outer support rings (3). The corresponding multiple strip-shaped reinforcing ribs (4) are arranged in a ring. A triangular anti-compression bracket (6) is fixedly connected between two adjacent strip-shaped reinforcing ribs (4).

2. The FRPP pipe assembly with a wear-resistant liner according to claim 1, characterized in that: The arc-shaped outer support ring (3), the strip-shaped reinforcing rib (4), and the triangular compression brace (6) are all located between the FRPP tube body (1) and the inner lining tube body (2).

3. The FRPP pipe assembly with a wear-resistant liner according to claim 1, characterized in that: The outer end of the arc-shaped outer support ring (3) is connected to the inner wall of the FRPP pipe body (1), and the vertex of the triangular anti-compression bracket (6) is connected to the inner wall of the FRPP pipe body (1).

4. The FRPP pipe assembly with a wear-resistant liner according to claim 1, characterized in that: The inner end of the inner lining tube (2) is fixedly connected with multiple strip-shaped inner grooves (7), and the four corners of the outer end of the hollow inner wall scraper ring (8) are fixedly connected with externally protruding sliders (9).

5. An FRPP pipe assembly with a wear-resistant liner according to claim 4, characterized in that: The inner end of the FRPP tube (1) is slidably connected to a hollow inner wall scraper ring (8), and multiple externally protruding sliders (9) correspond to the corresponding strip-shaped inner grooves (7).

6. An FRPP pipe assembly with a wear-resistant liner according to claim 5, characterized in that: Multiple strip-shaped inner grooves (7) are located around the inner sidewall of the inner lining tube (2), and the inner end of the hollow inner wall scraper ring (8) is fixedly connected to a triangular inner support frame (10).

7. An FRPP pipe assembly with a wear-resistant liner according to claim 6, characterized in that: A tension rope (11) is fixedly connected to the middle of the triangular inner support frame (10), and a hollow ring (12) is fixedly connected to the end of the tension rope (11) away from the triangular inner support frame (10).

8. An FRPP pipe assembly with a wear-resistant liner according to claim 1, characterized in that: The inner wall of the inner lining tube (2) is fixedly connected with a wear-resistant inner layer (13), and water is passed through the inner end of the inner lining tube (2).

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