An expansion mounting barrel for HDPE double wall corrugated pipe butt joint
Patent Information
- Application Number
- CN202522179965.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-15
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-15
AI Technical Summary
[0003]针对现有技术的不足，本实用新型提供了一种用于HDPE双壁波纹管对接的扩展安装筒，解决了现有的HDPE双壁波纹管在对接时，都是通过直通套管固定套压对接，其对接预留长度无法根据实际现场状况进行合理范围的调节，在特定场景下操作极为不便的问题
（1）、该用于HDPE双壁波纹管对接的扩展安装筒，通过分别将其对接直通管两端内部的延伸外推筒插入两个HDPE双壁波纹管端头的对接端套内，并通过上下两侧的摆动拉杆摆动，配合利用摆动拉杆与顶升外套筒的螺纹伸缩位移原理，带动拉锁块卡扣在对接端套上的定位锁块槽内，同时拉动延伸外推筒向对接端套内紧压推送，利用延伸外推筒端头的锥筒位移，利用位移产生的挤压差，在保持延伸外推筒稳定安装插入HDPE双壁波纹管侧端的对接端套同时，使其密封挤压软筒和密封环压垫紧密的顶撑在对接端套的内部，以达到通过对接直通管对两侧的HDPE双壁波纹管进行紧密安装对接的效果，然后再配合对接直通管两端内螺纹调节套管的旋转，利用内螺纹调节套管的内壁与延伸外推筒外表面的螺纹位移原理，使其两侧的延伸外推筒在对接直通管两端的内部伸缩位移，以及其配合伸缩波纹管在其对接直通管的内部发生伸缩变化，从而达到了可根据现场安装HDPE双壁波纹管对接实际预留长度进行灵活变化对接安装，避免了需要额外切管对接的操作，使其HDPE双壁波纹管对接更顺畅的效果。
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Figure CN224801233U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of double-wall corrugated pipe technology, specifically an extension installation cylinder for the connection of HDPE double-wall corrugated pipes. Background Technology
[0002] Double-wall corrugated pipe is a new type of lightweight pipe made from high-density polyethylene (HDPE). It features light weight, high pressure resistance, good toughness, fast construction, and long service life. Its superior pipe wall structure design significantly reduces costs compared to other pipe structures, and its convenient and reliable connection has led to its widespread use both domestically and internationally. Currently, existing HDPE double-wall corrugated pipes are connected by a straight sleeve with fixed compression fitting. The pre-installed connection length cannot be adjusted reasonably according to actual site conditions, making operation extremely inconvenient in certain scenarios and requiring additional pipe cutting and connection. This unreasonable installation problem is a very common issue in HDPE double-wall corrugated pipe connection. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides an extended installation sleeve for the connection of HDPE double-wall corrugated pipes. This solves the problem that existing HDPE double-wall corrugated pipes are connected by a straight sleeve for fixed compression, and the reserved length for connection cannot be adjusted within a reasonable range according to the actual site conditions, making operation extremely inconvenient in certain scenarios.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an extension installation cylinder for connecting HDPE double-wall corrugated pipes, comprising a connecting straight pipe, HDPE double-wall corrugated pipes placed on both sides of the connecting straight pipe, extension push cylinders inserted into both ends of the connecting straight pipe, a telescopic corrugated pipe provided inside the connecting straight pipe, the two extension push cylinders connected by the telescopic corrugated pipe, internal threaded adjusting sleeves provided on both sides of the connecting straight pipe, the side edge of the internal threaded adjusting sleeve rotatably connected to the side edge of the connecting straight pipe, the inner wall of the internal threaded adjusting sleeve threadedly sleeved to the surface of the extension push cylinder, connecting end sleeves fixedly provided at both ends of the HDPE double-wall corrugated pipe, the end of the extension push cylinder located outside the connecting straight pipe inserted into the interior of the connecting end sleeve, and a positioning pull ring tube fixedly sleeved on the surface of the extension push cylinder located outside the connecting straight pipe.
[0005] Preferably, a platform block is fixedly provided at the top and bottom of the positioning pull ring tube, and a swing pull rod is hinged to the middle of the platform block. The surface of the swing pull rod is provided with a threaded groove. One end of the swing pull rod is inserted into the interior of the lifting outer sleeve. A fastening rotating tube is threadedly sleeved on the surface of the swing pull rod. The inner wall of the fastening rotating tube is threadedly sleeved with the surface of the swing pull rod. A pull lock block is fixedly provided at the side end of the lifting outer sleeve, and a positioning lock block that cooperates with the pull lock block is fixedly provided on the surface of the mating end sleeve.
[0006] Preferably, a rectangular sliding rod is fixedly connected to the inner wall of the lifting outer sleeve. The other end of the rectangular sliding rod is slidably inserted into the interior of the swing pull rod. A rectangular pressure block is slidably sleeved on the surface of the rectangular sliding rod. The side of the rectangular pressure block is fixedly connected to the side end of the swing pull rod. A sliding outer connector is fixedly provided at the bottom of the rectangular pressure block. A sliding through groove for use with the sliding outer connector is opened at the bottom of the lifting outer sleeve. The sliding outer connector passes through the sliding through groove opened at the bottom of the lifting outer sleeve and extends to the outside of the lifting outer sleeve. Its end is fixedly connected to the side of the push-limit block. The inclined wall of the side of the push-limit block is in contact with the inclined surface of the positioning lock block.
[0007] Preferably, the positioning lock block is fixedly provided with limiting external protrusions on both the front and back sides, and the two limiting external protrusions are respectively located in front of and behind the zipper block.
[0008] Preferably, a sealing extrusion cylinder is fitted at one end of the extended push cylinder outside the docking end sleeve. The inner wall of the sealing extrusion cylinder is conical. The annular outer surface of the sealing extrusion cylinder is in extrusion contact with the inner wall of the docking end sleeve. A sealing ring pressure pad is fixedly provided along the side edge of the sealing extrusion cylinder. The side edge of the sealing ring pressure pad is in extrusion contact with the inner wall of the docking end sleeve. A sealing insert is fixedly provided on the side of the positioning pull ring tube. The other end of the sealing insert is inserted into the interior of the docking end sleeve.
[0009] This utility model provides an extended mounting sleeve for the butt joint of HDPE double-wall corrugated pipes. It has the following beneficial effects: (1) The extended installation cylinder for HDPE double-wall corrugated pipe butt joints is installed by inserting the extended push cylinders inside the two ends of the butt joint straight pipe into the butt joint end sleeves of the two HDPE double-wall corrugated pipes. By swinging the upper and lower swing rods, and using the threaded expansion and contraction displacement principle of the swing rods and the lifting outer sleeve, the pull lock block is driven to lock into the positioning lock block groove on the butt joint end sleeve. At the same time, the extended push cylinder is pulled and pushed tightly into the butt joint end sleeve. By using the conical displacement of the end of the extended push cylinder and the squeezing difference generated by the displacement, the extended push cylinder is stably installed and inserted into the butt joint end sleeve of the side end of the HDPE double-wall corrugated pipe, while making the sealing squeezing soft cylinder and sealing ring pressure pad tightly sealed. The sleeve is placed inside the docking end sleeve to achieve a tight connection between the HDPE double-wall corrugated pipes on both sides through the docking straight pipe. Then, by rotating the internal threaded adjusting sleeve at both ends of the docking straight pipe, the internal threaded adjusting sleeve and the external threaded displacement principle of the extended external push cylinder are used to cause the extended external push cylinder on both sides to expand and contract inside the docking straight pipe. In addition, the expansion and contraction of the corrugated pipe inside the docking straight pipe are also caused. This allows for flexible docking installation according to the actual reserved length of the HDPE double-wall corrugated pipe to be installed on site, avoiding the need for additional pipe cutting and making the HDPE double-wall corrugated pipe docking smoother. Attached Figure Description
[0010] Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 The structure of this utility model Figure 2 Enlarged view of point A; Figure 4 The structure of this utility model Figure 1 Enlarged view of point B; Figure 5 The structure of this utility model Figure 3 Enlarged view of point C; Figure 6 The structure of this utility model Figure 5 Enlarged diagram of point D; Figure 7 The structure of this utility model Figure 6 Enlarged diagram of point E.
[0011] In the diagram: 1. Connecting straight pipe; 2. Extending external push cylinder; 3. Telescopic corrugated pipe; 4. Internal thread adjusting sleeve; 5. HDPE double-wall corrugated pipe; 6. Connecting end sleeve; 7. Sealing extrusion soft cylinder; 8. Sealing ring pressure pad; 9. Positioning pull ring pipe; 10. Platform pad block; 11. Sealing insert; 12. Swing pull rod; 13. Lifting outer sleeve; 14. Fastening rotating pipe; 15. Rectangular sliding insert rod; 16. Rectangular pressure block; 17. Pull lock block; 18. Positioning lock block; 19. Sliding external connector; 20. Push limit block; 21. Limiting external protrusion. Detailed Implementation
[0012] 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.
[0013] like Figure 1-7As shown, this utility model provides a technical solution: an extension installation cylinder for connecting HDPE double-wall corrugated pipes, including a connecting straight pipe 1, with HDPE double-wall corrugated pipes 5 placed on both sides of the connecting straight pipe 1, and extension push cylinders 2 inserted into both ends of the connecting straight pipe 1. A telescopic corrugated pipe 3 is provided inside the connecting straight pipe 1, and the two extension push cylinders 2 are connected by the telescopic corrugated pipe 3. The telescopic corrugated pipe 3 allows the two extension push cylinders 2 to adjust their extension displacement outwards inside the connecting straight pipe 1 while ensuring a sealed flow of liquid inside the extension installation cylinder after connection. This allows for flexible connection according to the actual reserved length of the HDPE double-wall corrugated pipes 5 during on-site installation. The installation avoids the need for additional pipe cutting and splicing, resulting in a smoother connection of the HDPE double-wall corrugated pipe 5. Both sides of the connecting straight pipe 1 are equipped with internally threaded adjusting sleeves 4. The side edges of the internally threaded adjusting sleeves 4 are rotatably connected to the side edges of the connecting straight pipe 1. The inner wall of the internally threaded adjusting sleeves 4 is threadedly fitted onto the surface of the extending outer push cylinder 2. Both ends of the HDPE double-wall corrugated pipe 5 are fixedly equipped with connecting end sleeves 6. One end of the extending outer push cylinder 2 located outside the connecting straight pipe 1 is inserted into the interior of the connecting end sleeve 6. A sealing extrusion cylinder 7 is fitted onto the other end of the extending outer push cylinder 2 located outside the connecting end sleeve 6. The inner wall of the sealing extrusion cylinder 7 is conical, and the annular outer surface of the sealing extrusion cylinder 7 is in extrusion contact with the inner wall of the connecting end sleeve 6, sealing the connection. A sealing ring pressure pad 8 is fixedly installed along the side edge of the extrusion cylinder 7. The side edge of the sealing ring pressure pad 8 is in extrusion contact with the inner wall of the mating end sleeve 6. Through the arrangement of the sealing extrusion cylinder 7 and the sealing ring pressure pad 8, the cone at one end of the extended outer push cylinder 2 creates a displacement difference with the inner wall of the sealing extrusion cylinder 7, pushing the sealing extrusion cylinder 7 outward. This causes the sealing extrusion cylinder 7 to generate an extrusion deformation force with the inner wall of the mating end sleeve 6, and, in conjunction with the extrusion force of the sealing ring pressure pad 8, achieves a better mating seal. A positioning pull ring tube 9 is fixedly sleeved on the surface of the extended outer push cylinder 2 outside the mating straight tube 1. A sealing insert 11 is fixedly installed on the side of the positioning pull ring tube 9. The other end of the sealing insert 11 is inserted into the interior of the mating end sleeve 6. The sealing sleeve 11 enhances the sealing performance of the connection. Platform blocks 10 are fixedly installed at the top and bottom of the positioning pull ring tube 9. A swing rod 12 is hinged to the middle of the platform block 10. The surface of the swing rod 12 has a threaded groove. One end of the swing rod 12 is inserted into the lifting outer sleeve 13. A fastening rotating tube 14 is threaded onto the surface of the swing rod 12, and its inner wall is threaded onto the surface of the swing rod 12. A pull lock block 17 is fixedly installed on the side end of the lifting outer sleeve 13. A positioning lock block 18, which works in conjunction with the pull lock block 17, is fixedly installed on the surface of the docking end sleeve 6. Through the fastening rotating tube 14, the lifting outer sleeve 13, and the pull lock block 17, the fastening rotating tube 14 can be adjusted and rotated to achieve the desired sealing performance.Utilizing the threaded lifting displacement principle of the fastening tube 14 and the swing pull rod 12, the swing pull rod 12 is moved inward to lift the inner part of the outer sleeve 13, causing the pull lock block 17 to move towards the slot of the positioning lock block 18. Simultaneously, the sliding outer connector 19 drives the push limit block 20 to move towards the positioning lock block 18, causing the positioning lock block 18 to be locked between the push limit block 20 and the pull lock block 17. Limiting external protrusions 21 are fixedly provided on both the front and back of the positioning lock block 18. The setting of the limiting external protrusions 21... This ensures that the zipper block 17 can be stably latched with the positioning lock block 18. Two limiting protrusions 21 are respectively located in front of and behind the zipper block 17, ensuring that the extended installation cylinder can stably connect and install the HDPE double-wall corrugated pipe 5. A rectangular sliding rod 15 is fixedly connected to the inner wall of the lifting outer sleeve 13. The other end of the rectangular sliding rod 15 is slidably inserted into the interior of the swing pull rod 12. The rectangular sliding rod 15 ensures that the swing pull rod 12 can move horizontally but cannot rotate. A rectangular pressure block 16 is slidably sleeved on the surface of the rectangular sliding rod 15. The side of the rectangular pressure block 16 is fixedly connected to the side end of the swing pull rod 12. A sliding outer connector 19 is fixedly provided at the bottom of the rectangular pressure block 16. A sliding groove for use with the sliding outer connector 19 is opened at the bottom of the lifting outer sleeve 13. The sliding outer connector 19 passes through the sliding groove opened at the bottom of the lifting outer sleeve 13 and extends to the outside of the lifting outer sleeve 13. Its end is connected to the push The limiting block 20 is fixedly connected to the side. The inclined wall of the pushing limiting block 20 is pressed into contact with the inclined surface of the positioning locking block 18. Through the sliding outer connector 19 and the pushing limiting block 20, when the swing rod 12 and the fastening tube 14 rotate and cause threaded displacement, the pull lock block 17 is displaced and locked into the slot of the positioning locking block 18. Simultaneously, the sliding outer connector 19 synchronously displaces the pushing limiting block 20, so that the positioning locking block 18 is tightly locked in its middle by the pull lock block 17 and the pushing limiting block 20.
[0014] In use, first place the connecting straight pipe 1 between the two HDPE double-wall corrugated pipes 5 that need to be connected. Then, adjust the extension push cylinders 2 at both ends of the pipe to move outward according to the on-site connection length. That is, make a coarse adjustment by rotating and adjusting the internal threaded adjusting sleeves 4 on both sides of the connecting straight pipe 1. Through the threaded extension and retraction displacement of the internal threaded adjusting sleeves 4 and the extension push cylinders 2, the extension push cylinders 2 are moved outward to the connecting straight pipe 1, that is, pushed towards the connection end sleeve 6 of the HDPE double-wall corrugated pipe 5. The extension push cylinder 2 is pushed to the sealing compression soft cylinder 7 and sealing ring pressure pad 8 inside the connection end sleeve 6 and supported. Then, the two corresponding swing pull rods 12 are swung synchronously to drive the pull lock block 17. The tube is placed to the outside of the slot of the positioning locking block 18 on the surface of the mating end sleeve 6. Then, the rotating and tightening tube 14 is finely adjusted. Using the threaded lifting displacement principle of the tightening tube 14 and the swing pull rod 12, the swing pull rod 12 is moved inward to lift the inner part of the outer sleeve 13, which drives the pull lock block 17 to move towards the slot of the positioning locking block 18. At the same time, the sliding outer connector 19 drives the push limit block 20 to move towards the positioning locking block 18, so that the positioning locking block 18 is locked between the push limit block 20 and the pull lock block 17. At this time, the two HDPE double wall corrugated pipes 5 are tightly connected. At the same time, the contents not described in detail in this specification are all existing technologies known to those skilled in the art.
[0015] In summary, the extended installation cylinder for HDPE double-wall corrugated pipe butt joints works by inserting the extended push cylinders 2 inside the two ends of the butt joint straight pipe 1 into the butt joint sleeves 6 of the two HDPE double-wall corrugated pipes 5. The upper and lower swing rods 12 swing, and the threaded displacement principle of the swing rods 12 and the top-tightening rotating pipe 14 causes the locking block 17 to engage with the positioning locking block 18 groove on the butt joint sleeve 6. Simultaneously, the extended push cylinder 2 is pulled and pushed tightly into the butt joint sleeve 6. Utilizing the conical displacement of the end of the extended push cylinder 2 and the resulting compression difference, the extended push cylinder 2 is stably installed and inserted into the butt joint sleeve 6 of the HDPE double-wall corrugated pipe 5, while simultaneously sealing and compressing the soft cylinder 7 and the sealing ring gasket. 8. A tight top support is placed inside the connecting sleeve 6 to achieve a tight connection between the HDPE double-wall corrugated pipes 5 on both sides through the connecting straight pipe 1. Then, with the rotation of the internal thread adjusting sleeve 4 at both ends of the connecting straight pipe 1, the internal thread adjusting sleeve 4 and the thread displacement principle of the inner wall of the internal thread adjusting sleeve 4 and the outer surface of the extension push cylinder 2 are used to make the extension push cylinder 2 on both sides expand and contract inside the connecting straight pipe 1. In addition, the expansion and contraction of the expansion corrugated pipe 3 inside the connecting straight pipe 1 are also affected. This allows for flexible connection and installation according to the actual reserved length of the HDPE double-wall corrugated pipe 5 on site, avoiding the need for additional pipe cutting and connection, and making the connection of the HDPE double-wall corrugated pipe smoother.
[0016] 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.
[0017] 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 extended mounting sleeve for butt welding of HDPE double-wall corrugated pipes, comprising a butt welding straight pipe (1), characterized in that: HDPE double-wall corrugated pipes (5) are placed on both sides of the straight pipe (1). Extended push cylinders (2) are inserted into both ends of the straight pipe (1). Telescopic corrugated pipes (3) are provided inside the straight pipe (1). The two extended push cylinders (2) are connected by telescopic corrugated pipes (3). Internal threaded adjusting sleeves (4) are provided on both sides of the straight pipe (1). The side opening of the internal threaded adjusting sleeve (4) is rotatably connected to the side opening of the straight pipe (1). The inner wall of the internal threaded adjusting sleeve (4) is threadedly sleeved with the surface of the extended push cylinder (2). Both ends of the HDPE double-wall corrugated pipe (5) are fixedly provided with docking end sleeves (6). The end of the extended push cylinder (2) located outside the straight pipe (1) is inserted into the interior of the docking end sleeve (6). The surface of the extended push cylinder (2) located outside the straight pipe (1) is fixedly sleeved with a positioning pull ring tube (9).
2. The extended mounting sleeve for butt welding of HDPE double-wall corrugated pipes according to claim 1, characterized in that: The top and bottom of the positioning pull ring tube (9) are fixedly provided with platform blocks (10). A swing pull rod (12) is hinged to the middle of the platform block (10). The surface of the swing pull rod (12) is provided with a threaded groove. One end of the swing pull rod (12) is inserted into the interior of the lifting outer sleeve (13). The surface of the swing pull rod (12) is threaded with a fastening rotating tube (14). The inner wall of the fastening rotating tube (14) is threaded with the surface of the swing pull rod (12). A pull lock block (17) is fixedly provided on the side end of the lifting outer sleeve (13). A positioning lock block (18) that works with the pull lock block (17) is fixedly provided on the surface of the docking end sleeve (6).
3. An extended mounting sleeve for butt welding of HDPE double-wall corrugated pipes according to claim 2, characterized in that: A rectangular sliding rod (15) is fixedly connected to the inner wall of the lifting outer sleeve (13). The other end of the rectangular sliding rod (15) is slidably inserted into the interior of the swing pull rod (12). A rectangular pressure block (16) is slidably sleeved on the surface of the rectangular sliding rod (15). The side of the rectangular pressure block (16) is fixedly connected to the side end of the swing pull rod (12). A sliding outer connector (19) is fixedly provided at the bottom of the rectangular pressure block (16). A sliding groove for use with the sliding outer connector (19) is opened at the bottom of the lifting outer sleeve (13). The sliding outer connector (19) passes through the sliding groove opened at the bottom of the lifting outer sleeve (13) and extends to the outside of the lifting outer sleeve (13). Its end is fixedly connected to the side of the push-limit block (20). The inclined wall of the side of the push-limit block (20) is pressed against the inclined surface of the positioning lock block (18).
4. An extended mounting sleeve for butt welding of HDPE double-wall corrugated pipes according to claim 2, characterized in that: The positioning lock block (18) is fixedly provided with limiting external protrusions (21) on both the front and back sides, and the two limiting external protrusions (21) are respectively located in front of and behind the zipper block (17).
5. An extended mounting sleeve for butt welding of HDPE double-wall corrugated pipes according to claim 1, characterized in that: The extended push cylinder (2) is fitted with a sealing extrusion cylinder (7) at one end outside the docking end sleeve (6). The inner wall of the sealing extrusion cylinder (7) is cone-shaped. The annular outer surface of the sealing extrusion cylinder (7) is in extrusion contact with the inner wall of the docking end sleeve (6). A sealing ring pressure pad (8) is fixedly provided along the side edge of the sealing extrusion cylinder (7). The side edge of the sealing ring pressure pad (8) is in extrusion contact with the inner wall of the docking end sleeve (6). A sealing insert (11) is fixedly provided on the side of the positioning pull ring tube (9). The other end of the sealing insert (11) is inserted into the interior of the docking end sleeve (6).