A double-walled corrugated pipe facilitating detection of a cut size
By designing structures such as fixing blocks, rotating shafts, threaded rods, fixing rings, measuring scales, and reflective balls on double-walled corrugated pipes, the problems of lack of measuring tools and easy wear of scales in existing technologies are solved, enabling accurate measurement of pipe cutting dimensions and long service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN LIANSU IND
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-09
AI Technical Summary
The lack of measuring tools during the cutting of existing double-walled corrugated pipes makes the measurement work cumbersome and the scale easily wears off, affecting the accuracy of the measurement.
A double-walled corrugated pipe with convenient cutting dimensions was designed. It is equipped with a fixed block, a rotating shaft, a threaded rod, a fixed ring, a measuring ruler, a pointer, and a reflective ball. The pipe dimensions can be accurately measured by the extension and retraction of the threaded rod and the light reflection of the reflective ball.
It enables accurate measurements on pipes of different sizes, reduces the impact of external factors on measurement results, and extends the service life of the device.
Smart Images

Figure CN224334577U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pipeline technology, specifically a double-wall corrugated pipe that facilitates the detection of cutting dimensions. Background Technology
[0002] Double-wall corrugated pipes are mainly used in urban drainage, sewage projects, water diversion projects, farmland irrigation, desertification control projects, low-pressure water supply systems, municipal drainage and sewage pipeline renovation, and underground sheathing for electrical wires and cables. Existing double-wall corrugated pipes have a smooth inner wall and a corrugated outer wall. The troughs of the outer wall are bonded to the inner wall through high-temperature extrusion. The annular corrugated structure of the outer wall greatly enhances the pipe's ring stiffness, thereby increasing its resistance to soil load. To achieve the same ring stiffness, corrugated pipes can save 50% to 70% of material compared to solid-wall pipes.
[0003] Meanwhile, a double-walled corrugated pipe with announcement number CN107477266B is disclosed, including an outer wall and an inner wall. The outer wall is cylindrical, with annular first protrusions and first concave portions alternately formed along the length of the outer wall. The inner wall is straight and cylindrical, fitted inside the outer wall, connected to the first concave portion, and forming a first cavity between the inner wall and the first protrusion. The outer wall material is HDPE, and the inner wall material is LDPE.
[0004] When the aforementioned double-wall corrugated pipe needs to be cut during use, the lack of measuring tools makes the measurement work cumbersome. Furthermore, the markings on the pipe are easily worn down during handling and other processes, making them blurry and affecting the measurement work and the progress of the work.
[0005] Therefore, a double-walled corrugated pipe that facilitates the detection of cutting dimensions is proposed to address the above problems. Utility Model Content
[0006] To address the problems mentioned in the background art, this utility model provides a double-walled corrugated pipe that facilitates the detection of cutting dimensions. It has the advantages of being compatible with measuring tools for dimensional measurement, and the measuring device is suitable for pipes of different sizes.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a double-wall corrugated pipe for easy detection of cutting dimensions, comprising a double-wall corrugated pipe body, a fixing block being attached to the outer side of the double-wall corrugated pipe body, a rotating shaft being fixedly mounted on the outer side of the fixing block, a threaded rod being rotatably mounted on the outer side of the rotating shaft, a fixing ring being spirally mounted on the outer side of the threaded rod, a rotating handle being fixedly mounted at the top end of the threaded rod, and a shaped groove being formed inside the fixing ring.
[0008] Preferably, a fixing block three is fixedly provided on the outer side of the fixing ring one, a measuring ruler two is fixedly provided on the left side of the fixing block three, a slide rail is fixedly provided inside the measuring ruler two, and a slider is slidably provided inside the slide rail.
[0009] By adopting the above technical solution, a fixing block three is set to fix the measuring ruler two, and a slide rail is set so that the slider slides in the slide rail, allowing the measuring ruler one to slide inside the measuring ruler two, which facilitates measurement according to different cutting dimensions.
[0010] Preferably, a measuring ruler is fixedly provided on the right side of the slider, a fixing block is fixedly provided on the right side of the measuring ruler, a fixing ring is fixedly provided on the right side of the fixing block, a connecting post is fixedly provided on the front side of the fixing ring, and a pointer is fixedly provided on the outer side of the connecting post.
[0011] By adopting the above technical solution, a connecting column is set, and a pointer is set on the connecting column so that the pointer points to the scale, making it convenient for staff to observe the values and preventing the values from being inaccurate due to external influences.
[0012] Preferably, the second fixing ring has a shaped groove inside, a fixing rod is slidably provided inside the second fixing ring, a limiting post is fixed above the fixing rod, a connecting rod is fixed below the fixing rod, a spring is attached to the outside of the connecting rod, and a fixing block is fixed below the connecting rod.
[0013] By adopting the above technical solution and setting a fixing rod, when the device is installed on the pipeline, pressing the limiting post will keep the fixing block two in contact with the pipeline without displacement. The spring is set to buffer the device and extend its service life.
[0014] Preferably, a reflective sphere is fixedly provided on the outer side of the double-walled corrugated pipe body, and a reflective layer is fixedly provided on the outer side of the reflective sphere.
[0015] By adopting the above technical solution, and by setting a reflective layer on the reflective sphere, the position can be determined by the light emitted from the reflection of light, which is more convenient.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. This utility model features a fixed ring. By rotating the handle, the threaded rod rotates with the shaft, causing the fixed block to extend and retract, thus fixing the device in the groove of the pipe for measuring and cutting dimensions. After measurement, rotating the threaded rod retracts the fixed block into the irregular groove for protection. This design is suitable for pipes of different sizes and makes measurement more convenient.
[0018] 2. This utility model uses a reflective layer on a reflective sphere to determine the position by reflecting light. A connecting column is set on the connecting column, and a pointer is set on the connecting column so that the pointer points to the scale, making it convenient for staff to observe the values and preventing the values from being inaccurate due to external influences. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the double-wall corrugated pipe of this utility model;
[0020] Figure 2 This is a schematic diagram of the fixing ring structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the measuring ruler structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the slide rail structure of this utility model.
[0023] In the diagram: 1. Double-walled corrugated pipe body; 2. Reflective ball; 3. Reflective layer; 4. Fixing ring one; 5. Irregular groove one; 6. Fixing block one; 7. Threaded rod; 8. Connecting post; 9. Fixing ring two; 10. Fixing rod; 11. Fixing block two; 12. Spring; 13. Pointer; 14. Fixing block three; 15. Measuring ruler one; 16. Measuring ruler two; 17. Slide rail; 18. Slider; 19. Irregular groove two; 20. Connecting rod; 21. Limiting post; 22. Rotating handle; 23. Rotating shaft. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0025] The following describes an embodiment of this utility model based on its overall structure.
[0026] like Figures 1 to 4As shown, this utility model provides a double-wall corrugated pipe for easy detection of cutting dimensions, including a double-wall corrugated pipe body 1. A fixing block 6 is attached to the outer side of the double-wall corrugated pipe body 1. A rotating shaft 23 is fixed to the outer side of the fixing block 6. A threaded rod 7 is rotatably provided on the outer side of the rotating shaft 23. A fixing ring 4 is spirally provided on the outer side of the threaded rod 7. A rotating handle 22 is fixed to the top of the threaded rod 7. The fixing ring 4 is provided. By rotating the rotating handle 22, the threaded rod 7 rotates with the rotating shaft 23, causing the fixing block 6 to extend and retract, so that the device is fixed in the groove of the pipe for measuring the cutting dimensions. A special groove 5 is opened inside the fixing ring 4. After the measurement is completed, rotating the threaded rod 7 retracts the fixing block 6 into the special groove 5 for protection.
[0027] In this embodiment, a fixing block 3 14 is fixedly mounted on the outer side of the fixing ring 4. A measuring ruler 2 16 is fixedly mounted on the left side of the fixing block 3 14. A slide rail 17 is fixedly mounted inside the measuring ruler 2 16. A slider 18 is slidably mounted inside the slide rail 17. The fixing block 3 14 fixes the measuring ruler 2 16. The slider 18 slides within the slide rail 17, allowing the measuring ruler 15 to slide within the measuring ruler 2 16, facilitating measurement according to different cutting dimensions. A measuring ruler 15 is fixedly mounted on the right side of the slider 18. A fixing block 3 14 is fixedly mounted on the right side of the measuring ruler 15. A fixing ring 2 9 is fixedly mounted on the right side of the fixing block 3 14. A connecting post 8 is fixedly mounted on the front side of the fixing ring 2 9. A pointer 13 is fixedly mounted on the outer side of the connecting post 8. The pointer 13 is positioned on the connecting post 8 so that the pointer 13 points to... The scale facilitates the observation of values by staff and prevents inaccuracies due to external influences. A shaped groove 19 is provided inside the second fixing ring 9, and a fixing rod 10 slides inside the second fixing ring 9. A limiting post 21 is fixed above the fixing rod 10, and a connecting rod 20 is fixed below the fixing rod 10. A spring 12 is attached to the outside of the connecting rod 20, and a fixing block 11 is fixed below the connecting rod 20. With the fixing rod 10 in place, when the device is installed on the pipeline, pressing the limiting post 21 will keep the fixing block 11 in contact with the pipeline and prevent displacement. The spring 12 provides cushioning and extends the service life of the device. A reflective ball 2 is fixed to the outside of the double-walled corrugated pipe body 1, and a reflective layer 3 is fixed to the outside of the reflective ball 2. By setting the reflective layer 3 on the reflective ball 2, the position can be determined by the reflected light, making it more convenient.
[0028] The working principle and process of a double-wall corrugated pipe that facilitates the detection of cutting dimensions:
[0029] In the use of a double-walled corrugated pipe for easy measurement of cutting dimensions, the fixing ring 4 is passed through the top of the pipe. By rotating the handle 22, the threaded rod 7 rotates with the rotating shaft 23, causing the fixing block 6 to extend and retract, fixing the device in the groove of the pipe. Next, the size to be cut is determined, and the slider 18 slides in the slide rail 17, causing the measuring ruler 15 to slide inside the measuring ruler 2 16. After determining the size, the fixing ring 9 is placed outside the pipe. Pressing the limit post 21 causes the fixing rod 10 to move down under the buffer of the spring 12, which in turn moves the fixing block 2 11 down, fixing it on the outside of the pipe. The scale pointed to by the pointer 13 is the size to be cut. At the same time, by setting a reflective layer 3 on the reflective ball 2, the position is determined by the light emitted by the reflection. The two work together to make it more accurate. After the measurement is completed, rotating the threaded rod 7 retracts the fixing block 6 into the irregular groove 5 for protection. This setting is suitable for pipes of different sizes, making measurement more convenient. Furthermore, the use of the pointer 13 and the reflective ball 2 makes it easy for the staff to observe the values and prevents the values from being inaccurate due to external influences.
[0030] 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 process, method, article, or apparatus.
[0031] 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 double-walled corrugated pipe for facilitating detection of a cut size, comprising a double-walled corrugated pipe body (1), characterized in that: The outer side of the double-wall corrugated pipe body (1) is attached with a fixed block one (6), the outer side of the fixed block one (6) is fixedly provided with a rotating shaft (23), the outer side of the rotating shaft (23) is rotationally provided with a threaded rod (7), the outer side of the threaded rod (7) is spirally provided with a fixed ring one (4), the top end of the threaded rod (7) is fixedly provided with a rotating handle (22), and the inside of the fixed ring one (4) is provided with a special-shaped groove one (5).
2. A double wall corrugated pipe for facilitating detection of a cut size according to claim 1, characterized in that: The outer side of the fixed ring one (4) is fixedly provided with a fixed block three (14), the left side of the fixed block three (14) is fixedly provided with a measuring scale two (16), the inside of the measuring scale two (16) is fixedly provided with a sliding rail (17), and the inside of the sliding rail (17) is slidably provided with a sliding block (18).
3. A double wall corrugated pipe for facilitating detection of a cut size according to claim 2, characterized in that: The right side of the sliding block (18) is fixedly provided with a measuring scale one (15), the right side of the measuring scale one (15) is fixedly provided with a fixed block three (14), the right side of the fixed block three (14) is fixedly provided with a fixed ring two (9), the front side of the fixed ring two (9) is fixedly provided with a connecting column (8), and the outer side of the connecting column (8) is fixedly provided with a pointer (13).
4. A double wall corrugated pipe for facilitating detection of a cut size according to claim 3, characterized in that: The inside of the fixed ring two (9) is provided with a special-shaped groove two (19), the inside of the fixed ring two (9) is slidably provided with a fixed rod (10), and the upper side of the fixed rod (10) is fixedly provided with a limiting column (21).
5. A double wall corrugated pipe for facilitating detection of a cut size according to claim 4, characterized in that: The lower side of the fixed rod (10) is fixedly provided with a connecting rod (20), the outer side of the connecting rod (20) is attached with a spring (12), and the lower side of the connecting rod (20) is fixedly provided with a fixed block two (11).
6. The double wall corrugated pipe with ease of detecting the cut size according to claim 1, wherein: The outer side of the double-wall corrugated pipe body (1) is fixedly provided with a reflecting ball (2), and the outer side of the reflecting ball (2) is fixedly provided with a reflecting layer (3).