Porcelain tube with quick connection structure

By using the combination of annular grooves and convex ridges and threaded clamps, the problem of difficult quick disassembly of ceramic pipe connections is solved, achieving fast, stable, and airtight ceramic pipe connections, meeting the needs of rapid maintenance and replacement in industrial production.

CN224201277UActive Publication Date: 2026-05-05KUNSHAN JINLONG ELECTRIC APPLIANCES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN JINLONG ELECTRIC APPLIANCES CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing ceramic tube connection structures require tools or complex operations for disassembly, making rapid separation difficult and failing to meet the needs of rapid equipment maintenance and component replacement in industrial production.

Method used

The ceramic tube, which adopts a quick-connect structure, achieves initial positioning through the cooperation of annular grooves and annular protrusions. Combined with the threaded connection of threaded clamps and fixed clamps, the connection stability is enhanced, and the sealing mechanism prevents media leakage.

Benefits of technology

It achieves fast, stable, and airtight ceramic tube connections, meeting the needs of rapid equipment maintenance and component replacement in industrial production, and improving connection efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipe fitting connecting devices, and discloses a porcelain tube with a quick connecting structure, which comprises a porcelain tube I, a porcelain tube II is connected to the right side of the porcelain tube I in a sliding manner, an annular groove is formed in the right side of the outer wall of the porcelain tube I, and a fixing hoop is fixedly connected to the outer wall of the porcelain tube I; an annular protruding edge is fixedly connected to the left side of the outer wall of the second porcelain tube, a threaded hoop is slidably connected to the outer wall of the second porcelain tube, and a sealing mechanism is arranged outside the annular protruding edge and used for preventing materials in the tube from leaking. According to the utility model, through the cooperation of the annular groove and the annular rib, the first porcelain tube and the second porcelain tube can be rapidly and preliminarily positioned, and through the threaded connection of the threaded hoop and the fixing hoop, the fastening force can be effectively transmitted, and the threaded hoop and the fixing hoop can be tightly attached, so that the first porcelain tube and the second porcelain tube can be firmly fixed together. And the stability and the reliability of the connecting structure are enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of pipe fitting connection device technology, and in particular to ceramic pipe with a quick connection structure. Background Technology

[0002] Ceramic tubes are tubular components made of ceramic materials. Due to their excellent high temperature resistance, corrosion resistance, and strong insulation properties, they are used in power electronics, metallurgy, chemical industry, and machinery manufacturing. With the development of automation and precision in industrial production, the number and specifications of ceramic tubes used in equipment are increasing day by day. The connection efficiency and stability between ceramic tubes directly affect the reliability of equipment operation. Therefore, efficient and reliable ceramic tube connection structure has become a key issue that the industry urgently needs to solve.

[0003] Traditional ceramic pipe connection structures employ flange connections, welding, or adhesive bonding. Flange connections involve installing metal flanges at both ends of the ceramic pipe and securing them with bolts. Welding utilizes high temperatures to melt and fuse the ends of the ceramic pipe. Adhesive bonding uses high-temperature resistant, high-strength adhesive applied to the connection points. However, flange connections require tightening multiple bolts individually, a cumbersome process that demands consistent bolt tightening torque. Welding requires specialized equipment and technicians, and high-temperature operations can cause ceramic pipe deformation and cracking, making disassembly difficult after connection. Adhesive bonding requires waiting for the adhesive to cure, which is time-consuming, and the adhesive layer can peel off under high temperatures and vibrations, leading to connection failure.

[0004] Existing technologies have developed snap-fit ​​connection structures to address the shortcomings of traditional ceramic tube connection structures. Snap-fit ​​connections achieve quick engagement by setting elastic snaps and grooves on the ceramic tube. However, in practical use, although snap-fit ​​connections simplify the installation process, the elastic snaps will fatigue and break after repeated opening and closing. At the same time, disassembly still requires tools or complex operations, making quick separation difficult. This fails to meet the needs of rapid equipment maintenance and component replacement in industrial production, limiting the application efficiency of ceramic tube connection structures. Therefore, a ceramic tube with a quick-connect structure is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a ceramic tube with a quick-connect structure, which aims to improve the problem that in the prior art, tools or complex operations are still required during disassembly, making it difficult to achieve quick separation and failing to meet the needs of rapid equipment maintenance and component replacement in industrial production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a ceramic tube with a quick-connect structure, comprising a ceramic tube one, a ceramic tube two slidably connected to the right side of the ceramic tube one, an annular groove formed on the right side of the outer wall of the ceramic tube one, a fixing hoop fixedly connected to the outer wall of the ceramic tube one, an annular protrusion fixedly connected to the left side of the outer wall of the ceramic tube two, a threaded hoop slidably connected to the outer wall of the ceramic tube two, and a sealing mechanism provided outside the annular protrusion, the sealing mechanism being used to prevent leakage of substances inside the tube.

[0007] As a further description of the above technical solution:

[0008] The sealing mechanism includes a sealing ring, the inner wall of which is fixedly connected to the outer wall of the annular convex ridge. The inner wall of the first ceramic tube has a ring groove, and the outer wall of the first ceramic tube has multiple sliding grooves. The inner walls of the multiple sliding grooves are all fixedly connected to a fixing rod, and the inner walls of the multiple sliding grooves are all slidably connected to a slider. The outer walls of the multiple sliders are all provided with rod grooves.

[0009] As a further description of the above technical solution:

[0010] The outer wall of the threaded hoop is provided with anti-slip texture, and the outer wall of the second ceramic tube is fixedly connected with a limit plate.

[0011] As a further description of the above technical solution:

[0012] A locking piece is fixedly connected to the outer wall of the threaded hoop, and a screw hole is opened on the outer wall of the locking piece.

[0013] As a further description of the above technical solution:

[0014] A locking plate 2 is fixedly connected to the outer wall of the ceramic tube 1, and a bolt is threadedly connected to the inner wall of the locking plate 2.

[0015] As a further description of the above technical solution:

[0016] The outer wall of the bolt has a hexagonal groove, and a nut is threaded onto the outer wall of the bolt.

[0017] As a further description of the above technical solution:

[0018] Both ceramic tube one and ceramic tube two are fixedly connected to the outer walls of valve rings, and both valve rings are fixedly connected to pipe valves.

[0019] As a further description of the above technical solution:

[0020] Both valves are rotatably connected to switches on their outer walls, and both switches have finger grooves on their outer walls.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the cooperation of the annular groove and the annular protrusion enables the ceramic tube one and ceramic tube two to be quickly and initially positioned. At the same time, the threaded connection between the threaded hoop and the fixed hoop allows the tightening force to be effectively transmitted, achieving a tight fit between the threaded hoop and the fixed hoop, thereby firmly fixing the ceramic tube one and ceramic tube two together. This enhances the stability and reliability of the connection structure, making the ceramic tube connection process simple to operate, accurate in positioning, and firm in connection. It improves the efficiency and quality of ceramic tube connection and meets the usage requirements under different working conditions.

[0023] 2. In this utility model, by cooperating with the inner wall of the threaded hoop and the outer inclined side of the slider, the slider can move towards the center and squeeze the sealing ring during the tightening of the threaded hoop, thereby achieving active sealing enhancement. Through the deformation and filling of the sealing ring into the groove and the gap of the ceramic tube, the tiny gaps at the ceramic tube connection are filled, preventing the leakage of gas and liquid media and improving the sealing performance and reliability of the ceramic tube connection. Attached Figure Description

[0024] Figure 1 This is a perspective view of the ceramic tube with a quick-connect structure proposed in this utility model;

[0025] Figure 2 This is a front view of the ceramic tube with a quick-connect structure proposed in this utility model;

[0026] Figure 3 This is an exploded view of the ceramic tube with the quick-connect structure proposed in this utility model.

[0027] Figure 4 This is an exploded view of the ceramic tube 2 with the quick-connect structure proposed in this utility model;

[0028] Figure 5 This is a cross-sectional view of a ceramic tube with a quick-connect structure proposed in this utility model.

[0029] Legend:

[0030] 1. Ceramic tube one; 2. Sealing mechanism; 201. Sealing ring; 202. Ring groove; 203. Slide groove; 204. Fixing rod; 205. Sliding block; 206. Rod groove; 3. Ceramic tube two; 4. Annular groove; 5. Fixing clamp; 6. Annular protrusion; 7. Threaded clamp; 8. Anti-slip texture; 9. Limiting plate; 10. Locking piece one; 11. Screw hole; 12. Locking piece two; 13. Bolt; 14. Hexagonal groove; 15. Nut; 16. Valve ring; 17. Pipe valve; 18. Switch; 19. Finger groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] See attached document Figure 1 Appendix Figure 3 and attached Figure 4 This utility model provides an embodiment of a ceramic tube with a quick-connect structure, including a ceramic tube 1, which serves as a base component at one end of the connection structure, providing a corresponding structure for connection with a ceramic tube 3. The ceramic tube 3 is slidably connected to the right side of the ceramic tube 1. An annular groove 4 is formed on the right side of the outer wall of the ceramic tube 1, which engages with the annular protrusion 6 of the ceramic tube 3 to achieve initial positioning and engagement. A fixing clamp 5 is fixedly connected to the outer wall of the ceramic tube 1 to enhance the structural strength of the connection part and prevent deformation of the ceramic tube 1 during the connection process. An annular protrusion 6 is fixedly connected to the left side of the outer wall of the ceramic tube 3, which engages with the annular groove 4 of the ceramic tube 1 to restrict the relative movement of the two in the horizontal direction. A threaded clamp 7 is slidably connected to the outer wall of the ceramic tube 3 for... To achieve a tight connection and fastening between ceramic tube 1 and ceramic tube 3, a locking plate 10 is fixedly connected to the outer wall of the threaded clamp 7, which cooperates with the locking plate 12. The threaded clamp 7 and the fixed clamp 5 are fastened together by bolts 13. The outer wall of the locking plate 10 has a screw hole 11 for cooperating with the bolt 13 to achieve the fastening operation. The outer wall of the ceramic tube 1 is fixedly connected with the locking plate 12, which cooperates with the locking plate 10 to achieve the connection and fixation between the threaded clamp 7 and the fixed clamp 5. The inner wall of the locking plate 12 is threaded with a bolt 13. By screwing it into the screw hole 11, the locking plate 10 and the locking plate 12 are fastened together, thereby firmly connecting the ceramic tube 1 and the ceramic tube 3. A sealing mechanism 2 is provided on the outside of the annular convex rib 6. The sealing mechanism 2 is used to prevent the leakage of substances inside the pipe.

[0033] Specifically, ceramic tube 2 (3) is moved horizontally so that the annular protrusion 6 on the left side of the outer wall of ceramic tube 2 (3) aligns with the annular groove 4 on the right side of the outer wall of ceramic tube 1 (1). Ceramic tube 2 (3) is slid so that the annular protrusion 6 is inserted into the annular groove 4, achieving initial positioning of ceramic tube 1 (1) and ceramic tube 2 (3), restricting their relative horizontal movement, and forming a basic connection. Simultaneously, the fixing clamp 5, which is fixedly connected to the outer wall of ceramic tube 1 (1), enhances the structural strength of the connection point, preventing deformation of the outer wall of ceramic tube 1 (1) due to the compression caused by the inserted annular protrusion 6, and ensuring the stability of the shape of the annular groove 4. After initial positioning, the screw fitted onto the outer wall of ceramic tube 2 (3) is... The threaded hoop 7 slides along the outer wall of ceramic tube 2 3 toward ceramic tube 1, bringing it close to and threadedly connecting it with the fixing hoop 5. When the threaded hoop 7 slides to the appropriate position, the locking piece 10 fixedly connected to the outer wall of the threaded hoop 7 corresponds to the locking piece 2 12 fixedly connected to the outer wall of ceramic tube 1 1, and the screw hole 11 on the outer wall of the locking piece 10 is aligned with the position of the locking piece 2 12. The bolt 13 is screwed through the screw hole 11 and screwed into the inner wall of the locking piece 2 12 for threaded connection. As the bolt 13 is screwed in, the locking piece 10 and the locking piece 2 12 are tightened, and the tightening force is transmitted to the threaded hoop 7, so that the threaded hoop 7 and the fixing hoop 5 fit tightly together, realizing a firm connection between ceramic tube 1 1 and ceramic tube 2 3.

[0034] See attached document Figure 3 Appendix Figure 4 and attached Figure 5 The sealing mechanism 2 includes a sealing ring 201, which is used to fill the gap between the ceramic tube 1 and the ceramic tube 3 to achieve a sealing effect. The inner wall of the sealing ring 201 is fixedly connected to the outer wall of the annular protrusion 6, so that the sealing ring 201 can be embedded into the annular groove 4 along with the annular protrusion 6 at the connection gap. The inner wall of the ceramic tube 1 has an annular groove 202, which provides space for the sealing ring 201 to be deformed by compression, thereby enhancing the sealing performance. The outer wall of the ceramic tube 1 has multiple sliding grooves 203, which are used to provide sliding space for the slider 205. The track enables the linear motion of the slider 205. The inner walls of multiple grooves 203 are fixedly connected to fixed rods 204, which restrict the rotation of the slider 205 and make the slider 205 slide only along the direction of the groove 203. The inner walls of multiple grooves 203 are slidably connected to the slider 205. When squeezed by the threaded hoop 7, the slider 205 slides towards the center to squeeze the sealing ring 201. The outer walls of multiple sliders 205 are provided with rod grooves 206, which cooperate with the fixed rods 204 to ensure the stability and guidance of the slider 205 sliding.

[0035] Specifically, the inner wall of the sealing ring 201 is fixed to the outer wall of the annular protrusion 6. When the annular protrusion 6 of the ceramic tube 2 3 is embedded into the annular groove 4 of the ceramic tube 1 to complete the initial positioning, the sealing ring 201 is located at the connection gap between the ceramic tube 1 and the ceramic tube 2 3. The annular groove 202 on the inner wall of the ceramic tube 1 reserves space for its compression deformation. During the threaded connection stage between the threaded clamp 7 and the fixing clamp 5, the sliding groove 203 on the outer wall of the ceramic tube 1, the fixing rod 204 fixedly connected to the inner wall of the sliding groove 203, and the slider 205 slidably connected to the inner wall of the sliding groove 203 constitute a pressure transmission structure. The fixing rod 204 is inserted into the rod groove 20 on the outer wall of the slider 205. 6. Restrict the rotation of slider 205, allowing it to slide linearly along the slide groove 203. When the threaded clamp 7 slides along the outer wall of ceramic tube 2 3 toward ceramic tube 1 and is threadedly connected to the fixing clamp 5, the inner wall of the threaded clamp 7 contacts the outer inclined edge of slider 205. As the threaded clamp 7 tightens, its inner wall squeezes the outer inclined edge of slider 205. Under the guidance and limitation of the fixing rod 204, slider 205 slides along the slide groove 203 toward the center, squeezing the sealing ring 201 on the outer wall of the annular convex rib 6. After being squeezed, the sealing ring 201 deforms and fills the groove 202 and the gap between the ceramic tubes, forming a sealing layer to prevent gas and liquid from leaking from the ceramic tube connection.

[0036] See attached document Figure 1 Appendix Figure 2 and attached Figure 3 The outer wall of the threaded clamp 7 has anti-slip texture 8 to increase the friction between the operator's hand and the threaded clamp 7, facilitating the connection operation by rotating the threaded clamp 7. A limit plate 9 is fixedly connected to the outer wall of the ceramic tube 2 3 to limit the sliding range of the threaded clamp 7 on the outer wall of the ceramic tube 2 3, preventing the threaded clamp 7 from sliding excessively and dislodging from its predetermined position. The outer wall of the bolt 13 has a hexagonal groove 14 to facilitate the insertion of a hexagonal tool for tightening or loosening the bolt 13. A nut 15 is threaded onto the outer wall of the bolt 13, used in conjunction with the bolt 13 to further tighten the locking plate 10 and the locking plate 2 12, reinforcing the ceramic tube 1. The connection between the ceramic tube 1 and ceramic tube 2 is stable. Both ceramic tube 1 and ceramic tube 2 are fixedly connected to the outer walls of valve rings 16, which provide the installation base for pipe valve 17 and realize the control of the fluid inside the ceramic tube. Both valve rings 16 are fixedly connected to pipe valve 17, which is used to control the flow of fluid inside the ceramic tube and realize the regulation of fluid transport. Both pipe valve 17 are rotatably connected to the outer walls of the two pipe valves 17. The opening and closing state of pipe valve 17 is controlled by rotating the switch 18, which is convenient to operate. Both switches 18 are provided with finger grooves 19 on the outer walls, which makes it easy for operators to hook or press with their fingers, improving the convenience and stability of switch 18 operation.

[0037] Specifically, the anti-slip texture 8 on the outer wall of the threaded clamp 7 effectively increases friction, ensuring that operators can easily rotate the threaded clamp 7 to complete the connection operation, thus improving installation efficiency. The limiting plate 9 on the outer wall of the ceramic tube 2 3 precisely limits the sliding range of the threaded clamp 7, preventing it from leaving the predetermined position and ensuring the stability of the connection structure. The hexagonal groove 14 on the outer wall of the bolt 13, in conjunction with the nut 15, facilitates tool operation while further tightening the locking plate 10 and locking plate 2 12, significantly enhancing the firmness of the connection between ceramic tube 1 and ceramic tube 2 3. The valve ring 16, pipe valve 17, and switch 18 on the outer walls of ceramic tube 1 and ceramic tube 2 3 constitute a fluid control system. The valve ring 16 provides installation support for the pipe valve 17, which realizes fluid on / off control. The switch 18, through the design of the finger groove 19, facilitates flexible operation and can accurately adjust the fluid delivery to meet the needs of different working conditions.

[0038] Working Principle: First, prepare ceramic tube 1 and ceramic tube 3. Observe the annular groove 4 on the right side of the outer wall of ceramic tube 1 and the annular protrusion 6 fixedly connected to the left side of the outer wall of ceramic tube 3. Move ceramic tube 3 horizontally so that its annular protrusion 6 aligns with the annular groove 4 of ceramic tube 1. Slide ceramic tube 3 to the right so that the annular protrusion 6 is embedded in the annular groove 4. This operation achieves the initial positioning of ceramic tube 1 and ceramic tube 3. At this time, the relative movement of the two in the horizontal direction is restricted, forming a basic connection relationship, which can resist a certain degree of external force pulling and prevent easy separation. At the same time, the fixing hoop 5 fixedly connected to the outer wall of ceramic tube 1 at this stage plays a role in strengthening the structural strength of the connection part of ceramic tube 1, avoiding deformation of the outer wall of ceramic tube 1 due to the squeezing force when the annular protrusion 6 is embedded, and ensuring the annular groove The stable shape of 4 provides a reliable foundation for subsequent connection. After the initial positioning is completed, the threaded clamp 7, which is fitted on the outer wall of the ceramic tube 2 3, is slid along the outer wall of the ceramic tube 2 3 toward the ceramic tube 1, so that the threaded clamp 7 gradually approaches the fixing clamp 5 and is threadedly connected with it. When the threaded clamp 7 slides to the appropriate position, the locking piece 10 and the locking piece 2 12 are in the corresponding state, and the screw hole 11 on the outer wall of the locking piece 10 is completely aligned with the position of the locking piece 2 12. At this time, the bolt 13 is taken out, passed through the screw hole 11, and screwed into the inner wall of the locking piece 2 12 for threaded connection. As the bolt 13 is continuously screwed in, the locking piece 10 and the locking piece 2 12 gradually approach and tighten. This tightening force is transmitted to the threaded clamp 7 through the locking piece 10, so that the threaded clamp 7 and the fixing clamp 5 fit tightly together, thereby firmly connecting the ceramic tube 1 and the ceramic tube 2 3 together.

[0039] Furthermore, the sealing ring 201, as the core sealing component, has its inner wall fixedly connected to the outer wall of the annular protrusion 6, forming the initial sealing foundation. When the annular protrusion 6 of the ceramic tube 2 3 is embedded into the annular groove 4 of the ceramic tube 1, completing the initial positioning, the sealing ring 201 is positioned at the connection gap between the ceramic tube 1 and the ceramic tube 2 3, awaiting further compression deformation to enhance the sealing effect. The groove 202 opened on the inner wall of the ceramic tube 1 provides space for the compression deformation of the sealing ring 201, allowing it to fill the gap inward when subjected to external pressure, thus improving the sealing performance. In the threaded connection between the threaded clamp 7 and the fixed clamp 5, the multiple sliding grooves 203 opened on the outer wall of the ceramic tube 1, the fixed rod 204 fixedly connected to the inner wall of the sliding groove 203, and the slider 205 slidably connected to the inner wall of the sliding groove 203 together constitute the pressure transmission and pushing structure. The fixed rod 204 is inserted into the rod groove 206, restricting the slider 205. The slider 205 is rotated and only allowed to slide linearly within the groove 203. When the threaded clamp 7 is pushed to slide from the outer wall of the second ceramic tube 3 toward the first ceramic tube 1, gradually approaching the fixed clamp 5 and forming a threaded connection, the inner wall of the threaded clamp 7 contacts the outer inclined edge of the slider 205. As the threaded clamp 7 is tightened, its inner wall contacts the outer inclined edge of the slider 205 and generates a squeezing effect. Due to the guidance and limitation of the fixed rod 204 on the slider 205, after being squeezed by the inner wall of the threaded clamp 7, the slider 205 can only slide along the groove 203 toward the center. During the movement of the slider 205 toward the center, it directly squeezes the sealing ring 201 located on the outer wall of the annular convex rib 6. The sealing ring 201 has good elasticity and plasticity. After being squeezed by the slider 205, it will deform and fill the groove 202 on the inner wall of the first ceramic tube 1 and the gap between the first ceramic tube 1 and the second ceramic tube 3, preventing gas and liquid media from leaking from the ceramic tube connection.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ceramic tube with a quick-connect structure, comprising a ceramic tube (1), characterized in that: A second ceramic tube (3) is slidably connected to the right side of the first ceramic tube (1). An annular groove (4) is provided on the right side of the outer wall of the first ceramic tube (1). A fixing hoop (5) is fixedly connected to the outer wall of the first ceramic tube (1). An annular protrusion (6) is fixedly connected to the left side of the outer wall of the second ceramic tube (3). A threaded hoop (7) is slidably connected to the outer wall of the second ceramic tube (3). A sealing mechanism (2) is provided on the outside of the annular protrusion (6). The sealing mechanism (2) is used to prevent leakage of substances inside the tube.

2. The ceramic tube with a quick-connect structure according to claim 1, characterized in that: The sealing mechanism (2) includes a sealing ring (201), the inner wall of which is fixedly connected to the outer wall of the annular protrusion (6). The inner wall of the ceramic tube (1) is provided with a ring groove (202), and the outer wall of the ceramic tube (1) is provided with multiple sliding grooves (203). The inner walls of the multiple sliding grooves (203) are all fixedly connected with a fixing rod (204), and the inner walls of the multiple sliding grooves (203) are all slidably connected with a slider (205). The outer walls of the multiple sliders (205) are all provided with a rod groove (206).

3. The ceramic tube with a quick-connect structure according to claim 1, characterized in that: The outer wall of the threaded hoop (7) is provided with anti-slip texture (8), and the outer wall of the ceramic tube (3) is fixedly connected with a limiting plate (9).

4. The ceramic tube with a quick-connect structure according to claim 1, characterized in that: The outer wall of the threaded hoop (7) is fixedly connected to a locking piece (10), and the outer wall of the locking piece (10) is provided with a screw hole (11).

5. The ceramic tube with a quick-connect structure according to claim 1, characterized in that: The outer wall of the ceramic tube (1) is fixedly connected to a locking plate (12), and the inner wall of the locking plate (12) is threadedly connected to a bolt (13).

6. The ceramic tube with a quick-connect structure according to claim 5, characterized in that: The outer wall of the bolt (13) is provided with a hexagonal groove (14), and a nut (15) is threaded onto the outer wall of the bolt (13).

7. The ceramic tube with a quick-connect structure according to claim 1, characterized in that: Both the outer walls of the first ceramic tube (1) and the second ceramic tube (3) are fixedly connected with valve rings (16), and both valve rings (16) are fixedly connected with pipe valves (17).

8. The ceramic tube with a quick-connect structure according to claim 7, characterized in that: Both of the valves (17) are rotatably connected to switches (18) on their outer walls, and both switches (18) have finger grooves (19) on their outer walls.