MPP double-wall corrugated pipe anti-disengagement butt joint fixing structure
By using an anti-detachment docking and fixing structure, and employing springs and threaded connections to fix the plug, combined with sensor alarms, the problems of loosening and leakage in bellows docking are solved, achieving stable connection and timely leakage alarm.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUYANG ZHONGKE COMM EQUIP CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-14
AI Technical Summary
Existing MPP double-wall corrugated pipes are prone to loosening and falling off during connection, and may leak after long-term use, and the leak is not easy to detect in time.
It adopts an anti-detachment docking and fixing structure, including components such as connecting shell, plug block, plug post, rotating post, threaded post, pressure block and contact sensor. The plug block is fixed by the elastic push of the spring and the threaded connection, and the sensor and controller realize the leakage alarm.
It effectively prevents the corrugated pipe from falling off and provides timely alarms in case of leakage, ensuring stable pipeline connection and media safety.
Smart Images
Figure CN224497917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated pipe connection technology, specifically to an MPP double-wall corrugated pipe anti-detachment docking and fixing structure. Background Technology
[0002] MPP double-wall corrugated pipe is a new type of plastic pipe with a double-wall corrugated structure, made of polypropylene as the main raw material, using a special composite reinforcement and modification formula, and extruded through advanced processing technology.
[0003] Currently, when connecting bellows, most of them are connected using a connecting sleeve. The connection and fixation of the bellows are mostly done by thread or friction. The vibration generated during use may cause the fixing structure to loosen, which may lead to the bellows and the connecting sleeve falling off. At the same time, the bellows will age after long-term use, which may lead to leakage. If the leakage cannot be detected in time, it will cause the medium inside the bellows to be lost. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides an MPP double-wall corrugated pipe anti-detachment docking and fixing structure, which has the advantages of preventing detachment and providing leakage alarm, thus solving the problems mentioned in the background technology.
[0005] This utility model provides the following technical solution: an MPP double-wall corrugated pipe anti-detachment docking and fixing structure, including a connecting shell, a corrugated pipe body on the outside of the connecting shell, an extension shell one fixedly installed on the top of the connecting shell, an extension shell two fixedly installed on the bottom of the connecting shell, an insertion cylinder fixedly installed on the outer wall of the corrugated pipe body, a fixing liner fixedly fitted on the inner wall of the connecting shell, a partition layer opened inside the connecting shell, an insert block slidably connected to the inner wall of the extension shell one, a pull column fixedly installed on the top of the insert block, a spring on the outer wall of the pull column, and a rotating column rotatably connected to the pull column. A threaded column is fixedly installed at the bottom of the column. A pressure plate is slidably connected inside the second extension shell. A pressure column is fixedly installed at the bottom of the pressure plate. A spring is provided on the inner wall of the second extension shell. A contact sensor is fixedly installed on the inner wall of the second extension shell. A controller is fixedly installed at the bottom of the second extension shell. A warning light is fixedly installed at the bottom of the controller. A limit block is fixedly installed on the pressure plate. A limit groove is opened on the inner wall of the second extension shell. A pressure block is slidably connected to the inner wall of the insertion block. An insertion column is slidably connected to the inner wall of the insertion block. A compression slide plate is fixedly installed on the outer side of the insertion column. A spring is provided on the inner wall of the insertion block.
[0006] As a preferred technical solution of this utility model: the threaded post penetrates the pressure block, and the threaded post and the pressure block are threadedly connected, and the outer wall of the pressure block fits against the inner wall of the insertion block.
[0007] As a preferred technical solution of this utility model: the bottom of the pressing block and the top of the extrusion slide are both inclined surfaces, and the bottom of the pressing block is parallel to the top of the extrusion slide.
[0008] As a preferred technical solution of this utility model: the diameter of the insert is the same as the inner wall diameter of the fixed liner, and the shape of the insert block is adapted to the inner wall shape of the insert cylinder.
[0009] As a preferred technical solution of this utility model: the pressure column is located above the contact sensor, and the contact sensor is electrically connected to the controller, and the controller is electrically connected to the warning light.
[0010] As a preferred technical solution of this utility model: the number of the limiting blocks and the limiting grooves is two, and the two limiting blocks and the limiting grooves are symmetrically arranged, with the two limiting blocks located on the inner walls of the two limiting grooves.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. The MPP double-wall corrugated pipe anti-detachment docking and fixing structure uses the elasticity of spring one to push the insert block downward, thereby moving the insert block into the interior of the fixed liner. At this time, the height of the insert post is the same as that of the inner wall of the fixed liner. Then, rotating the rotating column causes the threaded column to rotate, which in turn causes the threaded column to move the pressure block downward, so that the inclined surface at the bottom of the pressure block fits with the inclined surface at the top of the extrusion slide plate. At this time, the continued movement of the pressure block pushes the insert post into the inner wall of the fixed liner, thereby fixing the insert cylinder. At the same time, the connection between the insert post and the fixed liner prevents the insert block from detaching from the insert cylinder.
[0013] 2. The MPP double-wall corrugated pipe anti-detachment docking and fixing structure, when leakage occurs through the insertion cylinder, the pressure inside the insertion cylinder causes the medium to spray out, which in turn sprays into the interior of the partition. The medium moves downward along the inner wall of the partition to the top of the pressure plate, which in turn presses the pressure plate downward, causing the pressure plate to move the pressure column downward, so that the pressure column is in contact with the top of the contact sensor. At this time, the contact sensor is triggered, which in turn sends an electrical signal to the controller, causing the controller to operate the warning light to flash, reminding the staff that there is a leak in the insertion cylinder. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic cross-sectional view of the present invention.
[0016] Figure 3 This is a schematic diagram of the fixed inner lining structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the extended shell of this utility model;
[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0019] Figure 6 This utility model Figure 4 Enlarged structural diagram at point B.
[0020] In the diagram: 1. Connecting shell; 2. Corrugated pipe body; 3. Extension shell one; 4. Extension shell two; 5. Insert cylinder; 6. Insert block; 7. Pull column; 8. Spring one; 9. Partition; 10. Rotating column; 11. Threaded column; 12. Pressure plate; 13. Pressure column; 14. Spring two; 15. Contact sensor; 16. Controller; 17. Warning light; 18. Limiting block; 19. Limiting groove; 20. Pressure block; 21. Extrusion slide plate; 22. Insert column; 23. Spring three; 24. Fixed inner liner. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1 - Figure 6A non-detachment docking and fixing structure for MPP double-wall corrugated pipe includes a connecting shell 1, a corrugated pipe body 2 on the outside of the connecting shell 1, an extension shell 3 fixedly installed on the top of the connecting shell 1, an extension shell 4 fixedly installed on the bottom of the connecting shell 1, an insertion cylinder 5 fixedly installed on the outer wall of the corrugated pipe body 2, a fixing liner 24 fixedly fitted on the inner wall of the connecting shell 1, a partition 9 opened inside the connecting shell 1, an insertion block 6 slidably connected to the inner wall of the extension shell 3, a pull post 7 fixedly installed on the top of the insertion block 6, a spring 8 on the outer wall of the pull post 7, a rotating post 10 rotatably connected to the pull post 7, and a threaded post 11 fixedly installed on the bottom of the rotating post 10. The inner wall of the second extension shell 4 is slidably connected to a pressure plate 12. A pressure post 13 is fixedly installed at the bottom of the pressure plate 12. A second spring 14 is provided on the inner wall of the second extension shell 4. A contact sensor 15 is fixedly installed on the inner wall of the second extension shell 4. A controller 16 is fixedly installed at the bottom of the second extension shell 4. A warning light 17 is fixedly installed at the bottom of the controller 16. A limit block 18 is fixedly installed on the pressure plate 12. A limit groove 19 is opened on the inner wall of the second extension shell 4. A pressure block 20 is slidably connected to the inner wall of the insertion block 6. An insertion post 22 is slidably connected to the inner wall of the insertion block 6. A squeezing slide plate 21 is fixedly installed on the outer side of the insertion post 22. A third spring 23 is provided on the inner wall of the insertion block 6.
[0023] In the above structure, the inner wall of the extension shell 2 4 is sealed by the pressure plate 12, so that the interior of the extension shell 2 4 forms two cavities, which prevents the medium above the pressure plate 12 from reaching the bottom of the pressure plate 12.
[0024] In a preferred embodiment: the threaded post 11 passes through the pressure block 20, and the threaded post 11 and the pressure block 20 are threadedly connected, and the outer wall of the pressure block 20 fits against the inner wall of the insert block 6;
[0025] In the above structure, by rotating the threaded column 11, the threaded column 11 drives the pressure block 20 to move through the threaded connection with the pressure block 20, thereby causing the pressure block 20 to move. At the same time, the pressure block 20 is prevented from rotating or tilting by fitting with the inner wall of the insert block 6.
[0026] In a preferred embodiment: the bottom of the pressure block 20 and the top of the extrusion slide plate 21 are both inclined surfaces, and the bottom of the pressure block 20 is parallel to the top of the extrusion slide plate 21;
[0027] In the above structure, when the pressure block 20 moves downward, the inclined surface at the bottom of the pressure block 20 is in contact with the inclined surface at the top of the extrusion slide plate 21. The pressure block 20 continues to move downward to press the inclined surface at the top of the extrusion slide plate 21 to both sides, thereby causing the extrusion slide plate 21 to move to both sides, which in turn causes the extrusion slide plate 21 to drive the insertion post 22 to move to both sides.
[0028] In a preferred embodiment: the diameter of the insert 22 is the same as the inner wall diameter of the fixed liner 24, and the shape of the insert 6 is adapted to the inner wall shape of the insert cylinder 5.
[0029] In the above structure, the insertion cylinder 5 is penetrated by the insertion block 6, so that the insertion block 6 moves downward to the inside of the fixed inner liner 24. At this time, the height of the insertion post 22 is the same as that of the inner wall of the fixed inner liner 24, so that the insertion post 22 enters the inner wall of the fixed inner liner 24, thereby fixing the insertion post 22 and the fixed inner liner 24.
[0030] In a preferred embodiment: the pressure post 13 is located above the contact sensor 15, and the contact sensor 15 is electrically connected to the controller 16, and the controller 16 is electrically connected to the warning light 17.
[0031] In the above structure, the downward movement of the pressure plate 12 causes the pressure column 13 to move downward, thereby making the pressure column 13 fit against the top of the contact sensor 15. At this time, the contact sensor 15 is triggered, causing the contact sensor 15 to send an electrical signal to the controller 16, which in turn causes the controller 16 to control the warning light 17 to flash.
[0032] In a preferred embodiment: there are two limiting blocks 18 and two limiting grooves 19, and the two limiting blocks 18 and two limiting grooves 19 are symmetrically arranged, with the two limiting blocks 18 located on the inner walls of the two limiting grooves 19.
[0033] In the above structure, the two limiting blocks 18 are limited by the two limiting grooves 19, so that when the pressure plate 12 moves, it drives the two limiting blocks 18 to slide on the inner wall of the two limiting grooves 19, thereby limiting the pressure plate 12 and preventing the pressure plate 12 from tilting when it moves.
[0034] Working principle: In use, the two bellows bodies 2 are inserted into the inner wall of the connecting shell 1 through the openings on both sides of the connecting shell 1, so that the insertion cylinders 5 outside the two bellows bodies 2 enter between the connecting shell 1 and the fixed inner liner 24. At this time, the pull column 7 is released, causing the pull column 7 to spring back and push the insert block 6 downward, so that the insert block 6 moves downward into the interior of the fixed inner liner 24. At this time, the height of the insert column 22 is the same as that of the inner wall of the fixed inner liner 24. Then, the rotating column 10 is rotated, which in turn drives the threaded column 11 to rotate. The threaded column 11 drives the pressure block 20 to move through the threaded connection with the pressure block 20, thus causing the pressure block 20 to move. Through the downward movement of the pressure block 20, when the inclined surface at the bottom of the pressure block 20 is in contact with the inclined surface at the top of the extrusion slide plate 21, the pressure block 20 continues to move downward, pressing the inclined surface at the top of the extrusion slide plate 21 to both sides, thus causing the extrusion slide plate 21 to move to both sides. The squeezing slide plate 21 moves the insertion post 22 to both sides, causing the insertion post 22 to enter the inner wall of the fixed liner 24, thus fixing the insertion block 6 and the insertion cylinder 5. Simultaneously, the locking between the insertion post 22 and the fixed liner 24 prevents the insertion block 6 from falling off, and consequently, the insertion cylinder 5 from falling off. When the insertion cylinder 5 leaks, the pressure inside the insertion cylinder 5 causes the medium to spray out, which then enters the interior of the partition 9. The medium moves downwards along the inner wall of the partition 9 to the top of the pressure plate 12, causing the pressure plate 12 to be pressed downwards. This causes the pressure plate 12 to move the pressure post 13 downwards, making the pressure post 13 contact the top of the contact sensor 15. At this point, the contact sensor 15 is triggered, sending an electrical signal to the controller 16, causing the controller 16 to operate the warning light 17 to flash, alerting the operator that the insertion cylinder 5 is leaking.
[0035] 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. An MPP double-wall corrugated pipe anti-detachment docking and fixing structure, comprising a connecting shell (1), characterized in that: The connecting shell (1) is provided with a bellows body (2) on the outside. An extension shell one (3) is fixedly installed on the top of the connecting shell (1). An extension shell two (4) is fixedly installed on the bottom of the connecting shell (1). An insertion cylinder (5) is fixedly installed on the outer wall of the bellows body (2). A fixed inner liner (24) is fixedly assembled on the inner wall of the connecting shell (1). A partition (9) is opened inside the connecting shell (1). An insertion block (6) is slidably connected to the inner wall of the extension shell one (3). A pull column (7) is fixedly installed on the top of the insertion block (6). A spring one (8) is provided on the outer wall of the pull column (7). A rotating column (10) is rotatably connected to the pull column (7). A threaded column (11) is fixedly installed on the bottom of the rotating column (10). The extension shell two (4) is slidably connected inside. There is a pressure plate (12), and a pressure column (13) is fixedly installed at the bottom of the pressure plate (12). A spring (14) is provided on the inner wall of the extension shell (4). A contact sensor (15) is fixedly installed on the inner wall of the extension shell (4). A controller (16) is fixedly installed at the bottom of the extension shell (4). A warning light (17) is fixedly installed at the bottom of the controller (16). A limit block (18) is fixedly installed on the pressure plate (12). A limit groove (19) is opened on the inner wall of the extension shell (4). A pressure block (20) is slidably connected to the inner wall of the insertion block (6). An insertion column (22) is slidably connected to the inner wall of the insertion block (6). A squeezing slide plate (21) is fixedly installed on the outer side of the insertion column (22). A spring (23) is provided on the inner wall of the insertion block (6).
2. The MPP double-wall corrugated pipe anti-detachment docking fixing structure according to claim 1, characterized in that: The threaded post (11) passes through the pressure block (20), and the threaded post (11) and the pressure block (20) are connected by threads. The outer wall of the pressure block (20) is in contact with the inner wall of the insert (6).
3. The MPP double-wall corrugated pipe anti-detachment docking fixing structure according to claim 1, characterized in that: The bottom of the pressure block (20) and the top of the extrusion slide plate (21) are both inclined surfaces, and the bottom of the pressure block (20) is parallel to the top of the extrusion slide plate (21).
4. The MPP double-wall corrugated pipe anti-detachment docking fixing structure according to claim 1, characterized in that: The diameter of the insert (22) is the same as the inner wall diameter of the fixed liner (24), and the shape of the insert (6) is adapted to the inner wall shape of the insert cylinder (5).
5. The MPP double-wall corrugated pipe anti-detachment docking fixing structure according to claim 1, characterized in that: The pressure column (13) is located above the contact sensor (15), and the contact sensor (15) is electrically connected to the controller (16), and the controller (16) is electrically connected to the warning light (17).
6. The MPP double-wall corrugated pipe anti-detachment docking fixing structure according to claim 1, characterized in that: The number of the limiting block (18) and the limiting groove (19) is two, and the two limiting blocks (18) and the limiting groove (19) are symmetrically arranged, with the two limiting blocks (18) located on the inner wall of the two limiting grooves (19).