Roadbed drainage ditch structure
By using corrugated pipes and sealing rings with self-adjusting mechanisms in the roadbed drainage ditches, the problem of easy damage and leakage at the connection between the water collection well and the permeable pipe was solved, achieving stable connection and efficient drainage.
Patent Information
- Application Number
- CN202522133267.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-09
AI Technical Summary
In the roadbed drainage ditch structure, the connection between the water collection well and the permeable pipe is easily affected by external impact, which can lead to displacement and leakage, affecting drainage efficiency and project safety.
It adopts a self-adjusting mechanism, including a bellows and a sealing ring, which is connected to the water permeable pipe via a threaded connection. Combined with the mounting ring and slider design of the connecting components, it buffers external impact and ensures sealing performance.
It effectively buffers external impacts, avoids damage to connection points, ensures a stable connection between the permeable pipe and the collection well, and improves the long-term stability and waterproof performance of the drainage system.
Smart Images
Figure CN224678476U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drainage ditch technology, and in particular to a roadbed drainage ditch structure. Background Technology
[0002] Subgrade drainage is a crucial aspect of road engineering, directly impacting subgrade stability and road lifespan. Traditional drainage systems primarily remove accumulated water through surface runoff and underground seepage. However, with increasing traffic loads and environmental changes, higher demands are being placed on the efficiency and durability of drainage systems.
[0003] Current common solutions in the field of roadbed drainage each have their own focus to adapt to different engineering needs and environmental conditions. Open ditch drainage has significant advantages in terms of simple construction and controllable cost, and is widely used in road sections with gentle terrain. It often uses cast-in-place concrete or precast components to build the ditch. Blind ditch drainage relies on the structural design of crushed stone filling layer combined with geotextile. Permeable pipe drainage can quickly divert concentrated seepage and has high drainage efficiency. Among them, open ditches mostly use cast-in-place concrete or precast components, blind ditches often use crushed stone filling layer combined with geotextile, and permeable pipes use PVC or HDPE porous pipes.
[0004] However, in actual use, in the roadbed drainage ditch structure, the water collection well and the permeable pipe are directly connected, which is easily affected by external forces and may cause displacement. The connection between the permeable pipe and the water collection well is prone to damage and leakage. Leakage will reduce drainage efficiency, cause roadbed defects, and threaten the safety of the project. Therefore, we propose a roadbed drainage ditch structure. Utility Model Content
[0005] The purpose of this utility model is to provide a roadbed drainage ditch structure that has the advantages of simple installation, easy operation, and resistance to leakage and detachment, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a roadbed drainage ditch structure, comprising: a thick cement mortar plaster layer, a water collection well provided at the top of the thick cement mortar plaster layer, a coating provided on the inner wall of the water collection well, sealing rings provided on both sides of the water collection well, brick piers provided on both sides of the top of the thick cement mortar plaster layer at the water collection well, grooves provided on the brick piers, permeable pipes provided inside the grooves, and a self-adjusting mechanism provided between the permeable pipes and the sealing rings, the self-adjusting mechanism being used to buffer external force impact.
[0007] In some embodiments, the self-adjusting mechanism includes a bellows, one end of which is threadedly connected to a sealing ring, and the other end of which is provided with a groove. The advantage of this design is that it facilitates the installation of connecting components.
[0008] In some embodiments, the corrugated pipe and the permeable pipe are connected by a connecting assembly, which includes a mounting ring rotatably connected to the corrugated pipe. A slider is provided at one end of the mounting ring near the corrugated pipe, and the slider is rotatably mounted inside the groove. A handle is provided on the outer wall of the mounting ring, and a threaded interface is provided at the end of the mounting ring away from the slider. The threaded interface is threadedly connected to the permeable pipe. The advantage of this design is that it facilitates a sealed connection between the corrugated pipe and the permeable pipe.
[0009] In some embodiments, the outer wall of the threaded interface is provided with an anti-slip layer, which is made of rubber. The advantage of this design is that it provides a sealing effect.
[0010] In some embodiments, a thick concrete pad is provided at the bottom of the thick cement mortar plaster layer. The advantage of this design is that it provides a flat and stable construction base surface and ensures the quality of the superstructure.
[0011] In some embodiments, a plain soil layer is provided at the bottom of the thick concrete cushion layer. The advantage of this design is that it has a strong load-bearing and dispersing capacity and is suitable for heavy load scenarios.
[0012] In some embodiments, the sealing ring is made of rubber, which has the advantage of providing excellent elasticity and deformation capacity, thus ensuring a tight seal.
[0013] This utility model has at least the following beneficial effects: 1. In this utility model, the layered arrangement and tight connection of the subgrade layer, thick concrete cushion layer, and thick cement mortar finishing layer achieve multiple beneficial effects. The subgrade layer, after being compacted in layers, provides a solid underlying support for the structure and ensures overall stability. The thick concrete cushion layer, with its strength and integrity, evenly distributes the upper load to the subgrade layer, avoiding settlement damage caused by concentrated loads, while also blocking the infiltration of underground capillary water. The thick cement mortar finishing layer covers the entire area and is fixed to the cushion layer through adhesion, combining leveling, protection, and load-bearing functions, reducing environmental erosion. The three-layer structure forms a synergistic force-bearing system, providing a reliable foundation for the upper components and ensuring the long-term stable operation of the drainage system.
[0014] 2. In this utility model, a self-adjusting mechanism is set between the water collection well and the permeable pipe. The corrugated pipe is threadedly sealed to the sealing ring, and a connecting component is installed on the corrugated pipe. The slider on the mounting ring in the connecting component is rotated and engaged inside the sliding groove. When the handle is rotated, the connecting component causes the corrugated pipe to rotate synchronously, so that the rear end of the threaded interface is connected to the interface of the permeable pipe. The corrugated pipe plays a good role in resisting impact, buffering external pressure, and preventing the connection between the water collection well and the permeable pipe from breaking and leaking. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the side section structure of the steel pipe of this utility model; Figure 3 This is a schematic diagram of the self-adjusting mechanism of this utility model; Figure 4 This is a schematic diagram of the main structure of this utility model; Figure 5 This is a side view structural diagram of the present invention.
[0016] In the diagram: 1. Thick cement mortar plaster layer; 11. Thick concrete cushion layer; 12. Plain soil layer; 2. Water collection well; 21. Coating layer; 22. Sealing ring; 3. Brick pier; 4. Permeable pipe; 5. Self-adjusting mechanism; 51. Corrugated pipe; 52. Slide groove; 53. Connecting component; 531. Mounting ring; 532. Slider; 533. Handle; 534. Threaded interface. Detailed Implementation
[0017] 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.
[0018] Example 1: See Appendix Figures 1-5 As shown, this utility model provides a technical solution: a roadbed drainage ditch structure, comprising: a thick cement mortar plaster layer 1, a water collection well 2 provided at the top of the thick cement mortar plaster layer 1, a coating 21 provided on the inner wall of the water collection well 2, and sealing rings 22 provided on both sides of the water collection well 2. Brick piers 3 are provided on both sides of the top of the thick cement mortar plaster layer 1 at the water collection well 2, and grooves are provided on the brick piers 3. A permeable pipe 4 is provided inside the grooves, and a self-adjusting mechanism 5 is provided between the permeable pipe 4 and the sealing rings 22. The self-adjusting mechanism 5 is used to buffer external force impact. The self-adjusting mechanism 5 includes a corrugated pipe 51, one end of which is threadedly connected to the sealing ring 22. Next, a groove 52 is provided at the other end of the corrugated pipe 51. The corrugated pipe 51 and the permeable pipe 4 are connected by a connecting component 53. The connecting component 53 includes a mounting ring 531 that is rotatably connected to the corrugated pipe 51. A slider 532 is provided at the end of the mounting ring 531 near the corrugated pipe 51. The slider 532 is rotatably installed inside the groove 52. A handle 533 is provided on the outer wall of the mounting ring 531. A threaded interface 534 is provided at the end of the mounting ring 531 away from the slider 532. The threaded interface 534 is threadedly connected to the permeable pipe 4. An anti-slip layer is provided on the outer wall of the threaded interface 534. The anti-slip layer is made of rubber. The sealing ring 22 is also made of rubber.
[0019] A water collection well 2 is fixedly installed at the top center of the thick cement mortar plaster layer 1. The water collection well 2 is vertically installed and its inner wall is fully covered with a coating 21. The core function of the coating 21 is to block groundwater or surface water from seeping into the outside of the water collection well 2, thereby achieving waterproof protection. Sealing rings 22 are embedded and fixed at corresponding positions on the left and right side walls of the water collection well 2. The sealing rings 22 are tightly fitted to the side walls of the water collection well 2 to enhance the sealing performance between the water collection well 2 and subsequent connecting components, thereby further strengthening the waterproof effect. On the top surface of the thick cement mortar plastering layer 1, brick piers 3 are symmetrically arranged on the left and right sides of the water collection well 2. The brick piers 3 are fixedly connected to the top surface of the thick cement mortar plastering layer 1. The brick piers 3 have grooves, the size of which is adapted to the outer diameter of the permeable pipe 4. The permeable pipe 4 is horizontally installed inside the grooves of the brick piers 3 on both sides, and the two ends of the permeable pipe 4 face the two side walls of the water collection well 2 respectively. A self-adjusting mechanism 5 is provided between the end of the permeable pipe 4 and the sealing ring 22 on the side wall of the water collection well 2. The self-adjusting mechanism 5 is used to buffer the stress generated by roadbed settlement, temperature change or external impact, and avoid damage to the connection. The self-adjusting mechanism 5 includes a corrugated pipe 51, which is horizontally arranged. The inner wall of the end near the water collection well 2 is provided with an internal thread, which is adapted to the external thread of the sealing ring 22 to realize the threaded connection. The inner wall of the end of the corrugated pipe 51 away from the water collection well 2 is provided with an annular groove 52, which extends along the circumference of the corrugated pipe 51. The corrugated pipe 51 and the permeable pipe 4 are connected by a connecting component 53. The connecting component 53 includes a mounting ring 531, which is sleeved on the outer side of the end of the corrugated pipe 51 away from the water collection well 2 and is rotatably connected to the corrugated pipe 51. A slider 532 is fixedly provided on the inner side wall of the end of the mounting ring 531 near the corrugated pipe 51. The slider 532 matches the shape and size of the groove 52 and is rotatably engaged inside the groove 52, so as to realize the limiting of the mounting ring 531 along the axial direction of the corrugated pipe 51 and the rotation in the circumferential direction. The outer wall of the mounting ring 531 is provided with a handle 533 for easy gripping and force application by the operator. The end of the mounting ring 531 away from the slider 532 is fixedly provided with a threaded interface 534. The outer wall of the threaded interface 534 is provided with external threads, which are adapted to the internal threads at the end of the permeable pipe 4 for threaded connection with the permeable pipe 4. The outer wall of the threaded interface 534 is wrapped with an anti-slip layer made of rubber to enhance grip friction. The sealing ring 22 is also made of rubber to improve the sealing effect by utilizing the elasticity of rubber. Place the permeable pipe 4 stably in the grooves of the brick piers 3 on both sides, ensuring that the end of the permeable pipe 4 is aligned with the sealing ring 22 on the side wall of the collection well 2; then align the end of the corrugated pipe 51 near the collection well 2 with the sealing ring 22, and rotate the corrugated pipe 51 to complete the threaded connection with the sealing ring 22; then align the threaded interface 534 of the connecting component 53 with the end of the permeable pipe 4, and the operator holds the handle 533 and rotates the mounting ring 531, causing the threaded interface 534 to rotate synchronously, so that the threaded interface 534 is tightened with the end of the permeable pipe 4, and the two are sealed together.
[0020] Example 1: See Appendix Figures 1-5 As shown, this utility model provides another technical solution: a roadbed drainage ditch structure, wherein a thick concrete pad 11 is provided at the bottom end of the thick cement mortar plastering layer 1, and a plain soil layer 12 is provided at the bottom end of the thick concrete pad 11.
[0021] The bottom surface of the thick cement mortar plastering layer 1 is closely attached to the top surface of the thick concrete pad 11. The two are fixedly connected by the bonding force of the cement mortar. The thickness of the thick cement mortar plastering layer 1 is uniform, covering the entire top surface of the thick concrete pad 11, and playing the role of surface leveling, protection and bearing the upper structure. The thick concrete cushion layer 11 is set in a horizontal layer, with its bottom surface in contact with the top surface of the plain soil layer 12. The thick concrete cushion layer 11 is formed by concrete pouring and has a certain strength and integrity. It can evenly distribute the load transmitted by the superstructure to the plain soil layer 12, avoid the load concentration that may cause local settlement or damage to the plain soil layer 12, and at the same time, it can isolate the plain soil layer 12 from the superstructure and block the upward infiltration of underground capillary water. The subgrade layer 12 is the bottom foundation of the roadbed. It consists of compacted natural soil and needs to be compacted in layers to ensure that it has a stable bearing capacity, providing a solid foundation support for the upper thick concrete cushion layer 11 and the entire drainage structure.
[0022] Based on the above embodiments, the working principle of the above embodiments is as follows: In use, the bottom soil layer first provides foundation support, which is compacted in layers to form a stable bearing surface, transferring the upper load to the foundation; the thick concrete pad layer at the top of the soil layer further disperses the load of the upper structure such as the thick cement mortar plaster layer and the water collection well through its own strength and integrity, while blocking the upward seepage of underground capillary water, and avoiding settlement of the soil layer due to water immersion or concentrated load; The thick cement mortar plastering layer forms a flat working surface based on the thick concrete pad layer, which supports and fixes the water collection well and brick pier. Its surface protection characteristics can reduce the impact of environmental erosion on the superstructure. Surface water and groundwater within the roadbed area are collected through the permeable pipe and transported to the water collection well along the pipe body. The permeable pipe is supported and fixed by the groove of the brick pier to ensure the stability of the drainage path. The coating on the inner wall of the water collection well prevents water from seeping to the outside. The rubber sealing rings embedded on both sides are threaded to one end of the corrugated pipe. The elasticity of the rubber achieves the first seal, preventing water leakage at the interface during drainage. When the roadbed settles, the temperature changes, or is impacted by external forces, the corrugated pipe of the self-adjusting mechanism buffers the stress through its own flexible deformation, avoiding damage to the connection between the permeable pipe and the water collection well due to rigid stress. The other end of the corrugated pipe is connected to the permeable pipe through a connecting component. The mounting ring rotates in the groove via a slider. The operator drives the threaded interface to tighten with the permeable pipe through the handle. The rubber anti-slip layer on the outer wall of the threaded interface enhances the stability of operation. At the same time, it works with the sealing ring to form a double seal. Finally, the water collected by the permeable pipe is smoothly discharged into the collection well through the self-regulating mechanism, completing the roadbed drainage operation. The coordinated action of all components ensures the long-term stable operation of the structure.
[0023] 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.
Claims
1. A roadbed drainage ditch structure, comprising a thick cement mortar plastering layer (1), characterized in that: A water collection well (2) is provided at the top of the thick cement mortar plastering layer (1). A coating (21) is provided on the inner wall of the water collection well (2). A sealing ring (22) is provided on both sides of the water collection well (2). A brick block (3) is provided on both sides of the top of the thick cement mortar plastering layer (1) at the water collection well (2). A groove is provided on the brick block (3). A water permeable pipe (4) is provided inside the groove. A self-adjusting mechanism (5) is provided between the water permeable pipe (4) and the sealing ring (22). The self-adjusting mechanism (5) is used to buffer the impact of external forces.
2. The roadbed drainage ditch structure according to claim 1, characterized in that: The self-adjusting mechanism (5) includes a bellows (51), one end of which is threadedly connected to a sealing ring (22), and the other end of which is provided with a groove (52).
3. A roadbed drainage ditch structure according to claim 2, characterized in that: The corrugated pipe (51) and the permeable pipe (4) are connected by a connecting assembly (53). The connecting assembly (53) includes a mounting ring (531) rotatably connected to the corrugated pipe (51). A slider (532) is provided at one end of the mounting ring (531) near the corrugated pipe (51). The slider (532) is rotatably installed inside the groove (52). A handle (533) is provided on the outer wall of the mounting ring (531). A threaded interface (534) is provided at one end of the mounting ring (531) away from the slider (532). The threaded interface (534) is threadedly connected to the permeable pipe (4).
4. A roadbed drainage ditch structure according to claim 3, characterized in that: The outer wall of the threaded interface (534) is provided with an anti-slip layer, which is made of rubber.
5. A roadbed drainage ditch structure according to claim 4, characterized in that: A thick concrete pad (11) is provided at the bottom of the thick cement mortar plastering layer (1).
6. A roadbed drainage ditch structure according to claim 5, characterized in that: A plain soil layer (12) is provided at the bottom of the thick concrete cushion layer (11).
7. A roadbed drainage ditch structure according to claim 1, characterized in that: The sealing ring (22) is made of rubber.