Spiral pipe seaming structure
By designing specific structures for the first and second tubes and utilizing the pressing of inclined, U-shaped, and L-shaped sections, the problems of material usage and production efficiency in the connection process of spiral tube seam structures were solved, achieving a tight and stable connection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-24
AI Technical Summary
The existing spiral pipe seam structure increases the use of additional materials and production costs during the connection process, and may also affect production efficiency, and the connection is not tight and stable enough.
The system employs a specific structural design for the first and second tubes, including inclined sections, U-shaped sections, L-shaped sections, and sealing rings. Through multiple pressing structures, it achieves tight fit and mechanical locking, increasing the contact area and connection strength.
It achieves a simple, stable, and sealed connection between spiral tubes, improving connection performance and safety, reducing material usage and processing complexity, and increasing production efficiency.
Smart Images

Figure CN224033263U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spiral tube technology, and in particular to a spiral tube seam structure. Background Technology
[0002] Spiral pipes, due to their unique spiral structure, are widely used in ventilation, water supply and drainage, and oil and gas transportation. The spiral pipe seam structure is a commonly used technique in the manufacturing and connection of spiral pipes, primarily used to achieve a tight connection and seal between pipes.
[0003] In the prior art, a search revealed a Chinese patent disclosing a spiral duct seam structure, application number 202322976438.0. This patent mainly includes two pressure blocks, with a connecting seam mechanism installed between the opposite sides of the two pressure blocks to prevent the accumulation of dirt and fine debris inside the existing spiral duct seam structure. Both sides of the connecting seam mechanism are equipped with pipe body locking mechanisms for pressing and connecting with the connecting seam mechanism. The connecting seam mechanism includes a fixing block fixedly installed between the opposite sides of the two pressure blocks, with pressure tail grooves on both sides of the fixing block, and a convex groove on the opposite side of each of the two pressure tail grooves. While the above-mentioned spiral duct seam structure effectively avoids the problem of dirt and fine debris accumulating inside the existing spiral duct seam structure, ensuring the cleanliness of the spiral duct, it can effectively improve the performance of the existing spiral duct seam structure. However, the aforementioned seaming structure uses pressure blocks to connect thin-walled tubes. Firstly, the introduction of these pressure blocks increases the amount of other materials used, and the processing and manufacturing of these blocks require additional steps and equipment, thus increasing production costs. Secondly, adding pressure blocks necessitates precise positioning and installation before the tube seaming operation, which may negatively impact production efficiency. Therefore, those skilled in the art provide a spiral tube seaming structure to address the problems mentioned in the background section. Utility Model Content
[0004] The purpose of this utility model is to provide a spiral tube interlocking structure. The multiple pressing structures increase the contact area and connection strength between the first tube body and the second tube body, which can effectively improve the connection performance and safety of the spiral tube and realize a simple, stable and sealed connection between spiral tubes.
[0005] To achieve the above objectives, a spiral tube seam structure is provided, comprising a first tube body and a second tube body arranged adjacent to each other. One end of the first tube body is formed with a first inclined section, the first inclined section is formed with a U-shaped section, and the U-shaped section is formed with a first L-shaped section. One end of the second tube body is formed with a bent section, the bent section is formed with a second L-shaped section, the second L-shaped section is formed with a second inclined section, and the second inclined section is formed with a connecting section. The connecting section is pressed against the inside of the U-shaped section, the bent section is pressed against the U-shaped section and the first L-shaped section, and the first L-shaped section is pressed against the bent section and the second L-shaped section.
[0006] According to the spiral tube seam structure, the first inclined section and the second inclined section have the same inclination angle, and the second inclined section and the first inclined section are in close contact with each other.
[0007] According to the spiral tube seam structure described above, the bottom surface of the second L-shaped segment is flush with the bottom surface of the first tube body.
[0008] According to the spiral tube seam structure, the vertical height of the inner gap of the U-shaped segment is slightly greater than the thickness of the joint segment, and the height between the U-shaped segment and the horizontal segment of the second L-shaped segment is slightly greater than the thickness of the bending segment.
[0009] According to the spiral tube seam structure, a sealing ring is provided between the vertically bent end of the first L-shaped section and the top of the second inclined section.
[0010] This utility model has the following beneficial effects:
[0011] Compared to existing technologies, this spiral tube interlocking structure presses the bent section of the second tube body into the gap between the U-shaped section and the first L-shaped section, ensuring initial contact between the two. Subsequently, the connecting section is precisely pressed into the inside of the U-shaped section, ensuring a tight connection. Simultaneously, the gaps between the bent section and the second and first L-shaped sections are also fully utilized for pressing, forming a robust mechanical locking structure. The multiple pressing structures increase the contact area and connection strength between the first and second tube bodies, effectively improving the connection performance and safety of the spiral tube, achieving a simple, stable, and sealed connection between spiral tubes.
[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0014] Figure 1 This is a schematic diagram of the overall structure of a spiral tube seam structure according to the present invention;
[0015] Figure 2 This is a schematic diagram of the first tube body structure of a spiral tube seam structure according to the present invention;
[0016] Figure 3 This is a schematic diagram of the second tube body structure of a spiral tube seam structure according to the present invention.
[0017] Legend:
[0018] 1. First pipe body; 11. First inclined section; 12. U-shaped section; 13. First L-shaped section; 2. Second pipe body; 21. Bending section; 22. Second L-shaped section; 23. Second inclined section; 24. Joint section; 3. Sealing ring. Detailed Implementation
[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0020] Reference Figure 1 , Figure 2 and Figure 3 This utility model discloses a spiral tube seam structure, comprising a first tube body 1 and a second tube body 2 arranged adjacent to each other. One end of the first tube body 1 is formed with a first inclined section 11, which gradually extends outward at a certain angle to facilitate a tight fit with the second tube body 2. The first inclined section 11 is formed with a U-shaped section 12, and the U-shaped section 12 is formed with a first L-shaped section 13. One end of the second tube body 2 is formed with a bent section 21, which is formed by bending the two sides of the second tube body 2. The bent section 21 is formed with a second L-shaped section 22, and the second L-shaped section 22 is formed with a second inclined section 23. The second inclined section 23 is formed with a connecting section 24, which is pressed against the inner side of the U-shaped section 12. The bent section 21 is pressed between the U-shaped section 12 and the first L-shaped section 13, and the first L-shaped section 13 is pressed between the bent section 21 and the second L-shaped section 22.
[0021] The bent section 21 of the second tube 2 is pressed into the gap between the U-shaped section 12 and the first L-shaped section 13, ensuring initial contact between the two. Subsequently, the connecting section 24 is precisely pressed into the inside of the U-shaped section 12, ensuring a tight connection. At the same time, the gaps between the bent section 21 and the second L-shaped section 22 and the first L-shaped section 13 are also fully utilized for pressing, forming a stable mechanical locking structure. The multiple pressing structures increase the contact area and connection strength between the first tube 1 and the second tube 2, effectively improving the connection performance and safety of the spiral tube, and achieving a simple, stable, and sealed connection between the spiral tubes.
[0022] The first inclined segment 11 and the second inclined segment 23 have the same inclination angle, and the second inclined segment 23 fits into the first inclined segment 11, ensuring that the first inclined segment 11 and the second inclined segment 23 fit tightly and without gaps when connected.
[0023] The bottom surface of the second L-shaped section 22 is flush with the bottom surface of the first pipe body 1, which helps to improve the overall aesthetics and also makes the pipe more consistent during the laying or installation process.
[0024] To facilitate the insertion between the first tube 1 and the second tube 2, the vertical height of the gap inside the U-shaped section 12 is slightly greater than the thickness of the connecting section 24, and the height between the U-shaped section 12 and the horizontal section of the second L-shaped section 22 is slightly greater than the thickness of the bending section 21, so that the first tube 1 and the second tube 2 can be inserted and connected more easily, which is conducive to the subsequent pressing work.
[0025] To further enhance the sealing performance, a sealing ring 3 is provided between the vertically bent end of the first L-shaped section 13 and the top of the second inclined section 23. The sealing ring 3 is made of a highly elastic material, which can effectively fill part of the gap between the two, enhance the sealing performance of the overall bite structure, and prevent liquid or gas leakage.
[0026] Working principle: The bent section 21 of the second tube 2 is pressed into the gap between the U-shaped section 12 and the first L-shaped section 13, ensuring initial contact between the two. Subsequently, the connecting section 24 is precisely pressed into the inside of the U-shaped section 12, ensuring a tight connection. At the same time, the gaps between the bent section 21 and the second L-shaped section 22 and the first L-shaped section 13 are also fully utilized for pressing, forming a stable mechanical locking structure. The multiple pressing structures increase the contact area and connection strength between the first tube 1 and the second tube 2, effectively improving the connection performance and safety of the spiral tube, and achieving a simple, stable, and sealed connection between the spiral tubes.
[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A spiral tube seam structure, characterized in that, The device includes a first tube (1) and a second tube (2) arranged adjacent to each other. One end of the first tube (1) is formed with a first inclined section (11). The first inclined section (11) is formed with a U-shaped section (12). The U-shaped section (12) is formed with a first L-shaped section (13). One end of the second tube (2) is formed with a bent section (21). The bent section (21) is formed with a second L-shaped section (22). The second L-shaped section (22) is formed with a second inclined section (23). The second inclined section (23) is formed with a connecting section (24). The connecting section (24) is pressed against the inside of the U-shaped section (12). The bent section (21) is pressed between the U-shaped section (12) and the first L-shaped section (13). The first L-shaped section (13) is pressed between the bent section (21) and the second L-shaped section (22).
2. The spiral tube seam structure according to claim 1, characterized in that, The first inclined segment (11) and the second inclined segment (23) have the same inclination angle, and the second inclined segment (23) and the first inclined segment (11) fit together.
3. The spiral tube seam structure according to claim 2, characterized in that, The bottom surface of the second L-shaped segment (22) is flush with the bottom surface of the first tube (1).
4. The spiral tube seam structure according to claim 3, characterized in that, The vertical height of the inner gap of the U-shaped segment (12) is slightly greater than the thickness of the joint segment (24), and the height between the U-shaped segment (12) and the horizontal segment of the second L-shaped segment (22) is slightly greater than the thickness of the bending segment (21).
5. The spiral tube seam structure according to claim 4, characterized in that, A sealing ring (3) is provided between the vertically bent end of the first L-shaped segment (13) and the top of the second inclined segment (23).
Citation Information
Patent Citations
Spiral duct seaming structure
CN221362317U