A wear-resistant ceramic straight pipe based on a metal sheath

By designing flange structures with arc grooves and sliding grooves on ceramic tubes, as well as mechanical locking structures with positioning plates and spring columns, the problem of low connection efficiency of ceramic tubes is solved, achieving rapid docking and stable connection, and improving installation and maintenance efficiency.

CN224339674UActive Publication Date: 2026-06-09JIANGSU YANGYUAN METAL MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU YANGYUAN METAL MFG CO LTD
Filing Date
2025-08-18
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The current method of connecting ceramic pipes using multiple sets of bolts and flanges results in low installation and maintenance efficiency, and is time-consuming and labor-intensive.

Method used

The flange structure, featuring an arc groove and sliding groove design, combined with a mechanical locking structure of a positioning plate and spring column, enables rapid docking and positioning of ceramic tubes, reducing the use of bolts.

Benefits of technology

It improves the efficiency of ceramic tube installation and maintenance, ensures connection stability and sealing, and avoids displacement and leakage of ceramic tubes during the docking process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of wear-resistant ceramic straight pipe based on metal sheath, comprising: ceramic pipe, its outside is equipped with metal sheath body, one end of metal sheath body is equipped with first flange, and other end is equipped with second flange;First flange, its inside is evenly provided with four groups of arc grooves, and fixed groove is arranged in the inside of arc groove;Second flange, its inside is evenly provided with four groups of through slots, and sliding slot is arranged in the middle of the inside of through slot;Butt joint component, it includes connecting block, connecting ring, arc plate and bolt.The utility model is by the first flange of a group of ceramic straight pipe and the second flange of another group of ceramic straight pipe are butt jointed, by controlling arc plate to be inserted into arc groove, then controlling connecting ring to rotate, so that arc plate rotates to enter the inside of fixed groove, the quick butt jointing of two groups of flanges is realized, by screwing bolt to be screwed into threaded hole, arc plate can be firmly inserted into the inside of fixed groove, so workman's installation and maintenance efficiency can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, specifically to a wear-resistant ceramic straight pipe based on a metal sheath. Background Technology

[0002] With the rapid development of modern industry, especially in industries such as dredging, mining, metallurgy, chemical industry, power generation, cement, construction, and environmental protection, there is a need to transport various muddy slurry materials, powdery pneumatic conveying materials, and wet or dry mixed stone granules. These industries have placed higher demands on the wear resistance, corrosion resistance, and high temperature resistance of conveying pipelines.

[0003] In the field of material conveying, ceramic pipes occupy an important position due to their excellent wear resistance and corrosion resistance. To further improve their stability, existing devices usually add a metal sheath to the outside of the ceramic pipe. This not only gives full play to the wear and corrosion resistance of the ceramic pipe itself in the material conveying process, but also provides comprehensive external protection for the ceramic pipe, effectively avoiding the shortcomings of ceramic material being easily damaged by external impact, and ultimately achieving long-term stable material conveying.

[0004] However, when connecting two sets of ceramic tubes, the existing technology still usually uses multiple sets of bolts and flanges for fixing. This connection method not only requires workers to use tools to tighten multiple sets of bolts one by one, which is time-consuming and laborious, directly restricting the overall efficiency of installation and docking, but also requires disassembling multiple sets of bolts during the later maintenance stage, further reducing the convenience and efficiency of maintenance work. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a wear-resistant ceramic straight tube based on a metal sheath, which can solve the existing problems.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A wear-resistant ceramic straight pipe with a metal sheath, comprising:

[0008] A ceramic tube with a metal sheath body installed on its outer side. A first flange is installed at one end of the metal sheath body and a second flange is installed at the other end.

[0009] The first flange has four sets of arc-shaped grooves evenly distributed on its inner side, and a fixing groove is provided on the inner side of the arc-shaped grooves.

[0010] The second flange has four sets of through grooves evenly opened on its inner side, and a sliding groove is opened in the middle of the inner side of the through groove.

[0011] The docking assembly includes a connecting block, a connecting ring, an arc plate, and bolts. The connecting block is movably disposed inside the through groove. Slider blocks are installed on both sides of the connecting block and slide into the inner side of the groove. A connecting ring is installed at one end of the connecting block and an arc plate is installed at the other end. The arc plate is engaged with the inner side of the arc groove and slides into the inner side of the fixed groove. Two sets of bolts are symmetrically threaded on the inner side of the connecting ring.

[0012] The positioning assembly includes a positioning plate, a spring post, and a positioning post. Four sets of positioning plates are evenly installed on one end of the metal sheath body, and four sets of positioning grooves are evenly provided on the other end. The positioning plates are fitted into the inner side of the positioning grooves. A circular groove is provided on the inner side of the positioning plate. The bottom of the inner side of the circular groove is fixedly connected to one end of the spring post, and the other end of the spring post is fixedly connected to the bottom of the positioning post.

[0013] Furthermore, the inner side of the first flange is symmetrically provided with two sets of threaded holes, and bolts are screwed into the inner side of the threaded holes.

[0014] Furthermore, a positioning hole is provided inside the positioning groove, and the positioning hole penetrates the metal sheath body, with the positioning post engaging and locking into the inside of the positioning hole.

[0015] Furthermore, one end of the ceramic tube is uniformly provided with multiple sets of protrusions, a sealing ring is installed inside the port of the ceramic tube, and multiple sets of grooves are uniformly opened on the other side of the ceramic tube, with the protrusions engaging and fitting into the inside of the grooves.

[0016] Compared with the prior art, the beneficial effects of this utility model include:

[0017] 1. When it is necessary to fix two sets of ceramic straight pipes, the operator connects the first flange of one set of ceramic straight pipes with the second flange of the other set of ceramic straight pipes. By controlling the arc plate to fit into the arc groove, and then controlling the connecting ring to rotate, the arc plate rotates into the inner side of the fixing groove, realizing the quick connection and fixing of the two sets of flanges. At this time, the bolt and threaded hole are in a vertically aligned state. By screwing the bolt into the threaded hole, the arc plate can be firmly locked into the inner side of the fixing groove. This can realize the connection and fixing of the two sets of ceramic pipes, thereby reducing the use of bolts and improving the installation and maintenance efficiency of the operator.

[0018] 2. In order to ensure accurate positioning of the two sets of ceramic tubes during docking and prevent displacement during the docking process, the staff inserts the positioning plate into the positioning groove. At this time, the elasticity of the spring column can drive the positioning column into the positioning hole, thereby achieving rapid positioning of the two sets of ceramic tubes, which facilitates the staff to quickly dock and fix the two sets of ceramic tubes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. 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 overall structure of a wear-resistant ceramic straight tube based on a metal sheath according to the present invention.

[0021] Figure 2 This is a schematic diagram of the first flange structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the second flange structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the limiting plate of this utility model;

[0024] Figure 5 This is a schematic diagram of the connecting ring structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the positioning arc plate structure of this utility model;

[0026] The diagram shows the following labels: 1. Metal sheath body; 2. First flange; 3. Second flange; 4. Threaded hole; 5. Connecting ring; 6. Positioning hole; 7. Positioning pin; 8. Bolt; 9. Ceramic tube; 10. Sealing ring; 11. Protrusion; 12. Positioning plate; 13. Arc groove; 14. Positioning groove; 15. Through groove; 16. Sliding groove; 17. Arc plate; 18. Groove; 19. Circular groove; 20. Spring pin; 21. Connecting block; 22. Sliding block; 23. Fixing groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] like Figure 1 - Figure 6 As shown, this utility model provides a wear-resistant ceramic straight pipe based on a metal sheath, including: a ceramic pipe 9, on which a metal sheath body 1 is installed, a first flange 2 is installed at one end of the metal sheath body 1, and a second flange 3 is installed at the other end;

[0029] The first flange 2 has four sets of arc-shaped grooves 13 evenly opened on its inner side, and a fixing groove 23 is opened on the inner side of the arc-shaped grooves 13.

[0030] The second flange 3 has four sets of through grooves 15 evenly opened on its inner side, and a sliding groove 16 is opened in the middle of the inner side of the through grooves 15.

[0031] The docking assembly includes a connecting block 21, a connecting ring 5, an arc plate 17, and bolts 8. The connecting block 21 is movably disposed inside the through groove 15. Slider 22 is installed on both sides of the connecting block 21. The slider 22 is slidably embedded inside the slide groove 16. A connecting ring 5 is installed at one end of the connecting block 21, and an arc plate 17 is installed at the other end. The arc plate 17 is fitted into the arc groove 13 and slides into the fixing groove 23. Two sets of bolts 8 are symmetrically threaded on the inner side of the connecting ring 5.

[0032] The positioning assembly includes a positioning plate 12, a spring post 20, and a positioning post 7. Four sets of positioning plates 12 are evenly installed on one end of the metal sheath body 1, and four sets of positioning grooves 14 are evenly provided on the other end. The positioning plates 12 are fitted into the inner side of the positioning grooves 14. A circular groove 19 is provided on the inner side of the positioning plate 12. The bottom of the inner side of the circular groove 19 is fixedly connected to one end of the spring post 20, and the other end of the spring post 20 is fixedly connected to the bottom of the positioning post 7.

[0033] In the above scheme:

[0034] 1. The arc plate 17 is inserted into the arc groove 13, and then the connecting ring 5 is rotated, which can drive the four sets of arc plates 17 into the fixing groove 23 to achieve quick docking and fixing of the two sets of ceramic tubes 9.

[0035] 2. By controlling the thread of the bolt 8 to enter the threaded hole 4, the arc plate 17 can be fixed in the fixing groove 23, and the two sets of ceramic tubes 9 can be fixed again, so that the two sets of ceramic tubes 9 can be connected more tightly.

[0036] 3. When the positioning plate 12 is inserted into the positioning groove 14, the elastic force of the spring column 20 can drive the positioning column 7 to be inserted into the positioning hole 6, which can realize the rapid positioning of the two sets of ceramic tubes 9. This can prevent the ceramic tubes 9 from shifting when connecting and fixing the two sets of ceramic tubes 9 in the future.

[0037] In this embodiment, two sets of threaded holes 4 are symmetrically opened on the inner side of the first flange 2, and the bolts 8 are screwed into the inner side of the threaded holes 4.

[0038] In the above scheme: after the arc plate 17 is inserted into the fixing groove 23, the bolt 8 is turned into the threaded hole 4 to prevent the arc plate 17 from slipping out of the fixing groove 23 and enhance the docking stability.

[0039] In this embodiment, a positioning hole 6 is provided on the inner side of the positioning groove 14, and the positioning hole 6 penetrates the metal sheath body 1, and the positioning post 7 is engaged and inserted into the inner side of the positioning hole 6.

[0040] In the above scheme: during the docking process, the positioning plate 12 squeezes the positioning post 7 to retract it into the circular groove 19. When the positioning plate 12 is fully inserted into the positioning groove 14, the positioning post 7 is aligned with the positioning hole 6. The spring post 20 resets and pushes the positioning post 7 through the positioning hole 6 to form a mechanical locking structure, thereby achieving the initial positioning and fixing of the two sets of straight pipes.

[0041] In this embodiment, a plurality of protrusions 11 are uniformly arranged at one end of the ceramic tube 9, a sealing ring 10 is installed on the inner side of the port of the ceramic tube 9, and a plurality of grooves 18 are uniformly opened on the other side of the ceramic tube 9, with the protrusions 11 engaging and fitting into the inner side of the grooves 18.

[0042] In the above scheme: when the two sets of ceramic tubes 9 are connected, the protrusion 11 of one set of ceramic tubes 9 can be precisely inserted into the groove 18 of the other set of ceramic tubes 9 to form circumferential positioning and prevent the ceramic tubes 9 from rotating relative to each other; at the same time, the sealing ring 10 at the port is deformed by the two sets of ceramic tubes 9 to fill the gap, which can effectively prevent material from leaking from the connection and improve the sealing performance.

[0043] In this embodiment, when it is necessary to connect two sets of ceramic tubes 9 together, the operator aligns the first flange 2 on one set of ceramic tubes 9 with the second flange 3 on the other set of ceramic tubes 9. The four positioning plates 12 are aligned with the inner side of the positioning groove 14. During the process of the positioning plates 12 being inserted into the positioning groove 14, due to the curvature of the outer side of the positioning post 7, the positioning groove 14 will press against the positioning post 7, causing the positioning post 7 to slide into the inner side of the circular groove 19. When the positioning post 7 is vertically aligned with the positioning hole 6, the positioning groove 14 can no longer press against the positioning post 7. The elastic force of the spring post 20 can drive the positioning post 7 into the positioning hole 6, thus fixing the position of the two sets of ceramic tubes 9. At this time, the protrusion 11 is inserted into the groove 1. Within 8, the two sets of ceramic tubes 9 can be connected more tightly. The sealing ring 10 prevents leakage of materials during transportation. When the positioning plate 12 is inserted into the positioning groove 14, the arc plate 17 is located inside the arc groove 13. The operator controls the connecting ring 5 to rotate, which can drive the arc plate 17 into the fixing groove 23, thereby realizing the docking and fixing of the two sets of ceramic tubes 9. At this time, the bolt 8 and the threaded hole 4 are vertically aligned. The operator screws the bolt 8 into the threaded hole 4, thereby fixing the position of the arc plate 17. At the same time, it can also achieve another fixation of the position of the two sets of ceramic tubes 9, which can effectively reduce the use of bolt 8, thereby greatly improving the installation and maintenance efficiency.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wear-resistant ceramic straight pipe based on a metal sheath, characterized in that, include: A ceramic tube (9) is fitted with a metal sheath body (1) on its outer side. A first flange (2) is fitted at one end of the metal sheath body (1) and a second flange (3) is fitted at the other end. The first flange (2) has four sets of arc-shaped grooves (13) evenly opened on its inner side, and a fixing groove (23) is opened on the inner side of the arc-shaped grooves (13); The second flange (3) has four sets of through grooves (15) evenly opened on its inner side, and a sliding groove (16) is opened in the middle of the inner side of the through grooves (15). The docking assembly includes a connecting block (21), a connecting ring (5), an arc plate (17), and bolts (8). The connecting block (21) is movably disposed inside the through groove (15). Slider blocks (22) are installed on both sides of the connecting block (21). The sliders (22) slide into the inside of the slide groove (16). A connecting ring (5) is installed at one end of the connecting block (21), and an arc plate (17) is installed at the other end. The arc plate (17) is engaged and inserted into the inside of the arc groove (13), and the arc plate (17) slides into the inside of the fixed groove (23). Two sets of bolts (8) are symmetrically threaded on the inner side of the connecting ring (5). The positioning assembly includes a positioning plate (12), a spring post (20), and a positioning post (7). Four sets of positioning plates (12) are evenly installed on one end of the metal sheath body (1), and four sets of positioning grooves (14) are evenly provided on the other end. The positioning plates (12) are fitted into the inner side of the positioning grooves (14). A circular groove (19) is provided on the inner side of the positioning plate (12). The bottom of the inner side of the circular groove (19) is fixedly connected to one end of the spring post (20), and the other end of the spring post (20) is fixedly connected to the bottom of the positioning post (7).

2. The wear-resistant ceramic straight pipe based on a metal sheath according to claim 1, characterized in that: The inner side of the first flange (2) is symmetrically provided with two sets of threaded holes (4), and bolts (8) are screwed into the inner side of the threaded holes (4).

3. The wear-resistant ceramic straight pipe based on a metal sheath according to claim 2, characterized in that: The positioning groove (14) has a positioning hole (6) inside, and the positioning hole (6) penetrates the metal sheath body (1). The positioning post (7) is engaged and inserted into the inside of the positioning hole (6).

4. The wear-resistant ceramic straight pipe based on a metal sheath according to claim 3, characterized in that: One end of the ceramic tube (9) is uniformly provided with multiple sets of protrusions (11), a sealing ring (10) is installed inside the port of the ceramic tube (9), and multiple sets of grooves (18) are uniformly opened on the other side of the ceramic tube (9), with the protrusions (11) fitting into the inside of the grooves (18).