Fabricated water seepage and drainage blind ditch

Abstract

The utility model relates to the technical field of blind ditches, and provides an assembly type water seepage and drainage blind ditch which comprises a plurality of main bodies which are connected end to end, and each main body comprises a water drainage pipe used for water drainage after being connected; the support is used for supporting the drainage pipe, one side of the support is provided with an installation hole, the other side of the support is provided with a guide column, and the guide column of the adjacent body is used for sliding into the installation hole of the adjacent body. By means of the technical scheme, the problems that in the prior art, blind ditch composition materials are complex, and each material is not a finished product and needs to be automatically machined or remachined after being purchased are solved.

Description

Technical Field

[0001] This utility model relates to the field of blind drain technology, specifically to prefabricated seepage drainage blind drains. Background Technology

[0002] In high-speed railway subgrade design, to address the challenges of subgrade base deformation and uneven settlement caused by groundwater development, longitudinal blind drains are typically installed on both sides of the subgrade base to divert and drain groundwater. This lowers the groundwater level at the subgrade base, ensuring its stability and meeting the operational requirements of high-speed trains. Currently used longitudinal drainage systems primarily consist of a concrete base, reinforced concrete pipes or HDPE double-wall corrugated pipes, clean crushed stone, permeable geotextile, and a filter layer. However, this system suffers from complex material composition, and none of these materials are readily available as finished products, requiring either in-house processing or purchase and subsequent fabrication. Utility Model Content

[0003] This utility model proposes a prefabricated drainage blind ditch, which solves the problem of complex materials in the composition of blind ditches in related technologies, and the fact that each material does not have a finished product and needs to be processed by oneself or purchased and then processed.

[0004] The technical solution of this utility model is as follows:

[0005] Prefabricated drainage blind drains include:

[0006] The main body comprises several entities connected end-to-end, and each entity includes:

[0007] Drainage pipes, several of which are connected together for drainage;

[0008] A bracket is used to support the drain pipe. The bracket has a mounting hole on one side and a guide post on the other side. The guide post of the adjacent body is used to slide into the mounting hole of the adjacent body.

[0009] Optionally, the guide post is a prism, and after the guide post slides into the mounting hole, it fits into the mounting hole.

[0010] Optionally, the guide post has threads and further includes:

[0011] A fixing cylinder is mounted on the bracket and communicates with the mounting hole;

[0012] A rotating cylinder is rotatably mounted on the fixed cylinder. The rotating cylinder also has threads, and after the rotating cylinder rotates, the threads are mounted on the guide post.

[0013] Optionally, it also includes:

[0014] The first protective layer is installed on the bracket.

[0015] Optionally, it also includes:

[0016] The second protective layer is disposed on the first protective layer.

[0017] Optionally, the end of the guide post away from the bracket has a chamfer.

[0018] Optionally, the guide post has an annular groove and further includes:

[0019] A plurality of elastic elements are arranged at circumferential intervals within the mounting holes;

[0020] A plurality of stop blocks are correspondingly disposed on the elastic member, the elastic member being used to provide a force for the stop blocks to engage with the annular groove.

[0021] Optionally, the upper side of the bracket is semi-circular and the lower side is square.

[0022] Optionally, the drain pipe is a corrugated pipe.

[0023] Optionally, it also includes:

[0024] Geotextile is installed on the second protective layer.

[0025] The working principle and beneficial effects of this utility model are as follows:

[0026] In this invention, to address the problem of complex materials used in blind drains in related technologies, and the fact that each material is not readily available and requires processing or purchase, this solution designs the blind drain as a prefabricated unit. Each material is manufactured into a single main body, which is then transported to the blind drain design site for assembly. First, drainage pipes are manufactured according to design requirements. Corrosion-resistant and high-strength materials can be selected to ensure long-term and effective drainage. Several drainage pipes are connected using appropriate connection methods to ensure the sealing of the connection points and prevent leakage. Next, a support frame is manufactured. The support frame ensures stable support for the drainage pipes. Mounting holes are precisely machined on one side of the support frame, with the size and shape matching the guide post. Guide posts are manufactured on the other side of the support frame, with appropriate length and diameter to allow them to slide smoothly into the mounting holes of adjacent main bodies. The assembled main bodies are then transported to the blind drain design site. On-site, the position of the first main body is determined and placed in the designated location. Then, the second main body is picked up, its guide post aligned with the mounting hole of the first main body, and gently pushed to allow the guide post to slide into the mounting hole, completing the connection between the two main bodies. After the main structure is connected, the blind drain is secured. Concrete can be poured on both sides of the drain to prevent movement during use. Guide posts effectively prevent misalignment of the main structure or leakage caused by ground settlement during installation.

[0027] Prefabricated drainage blind drains are designed as multiple main components, significantly simplifying the structure compared to the complex material composition of traditional blind drains. Each main component consists of a drainage pipe and a support frame, reducing the types of materials used and facilitating management and quality control. Each component is manufactured in the factory and can be transported to the construction site as a finished product. This avoids the need for in-house processing or post-purchase processing of traditional blind drain materials, saving construction time and costs. On-site assembly is simple and quick, improving construction efficiency. Because the main components are prefabricated, the length and shape of the blind drain can be flexibly adjusted according to actual needs. If the layout of the blind drain needs to be changed, only the main components need to be disassembled and reassembled, offering high flexibility. Attached Figure Description

[0028] The preferred embodiments will be described below in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages and implementation methods of this utility model.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 for Figure 1 Enlarged view of point A;

[0031] Figure 3 This is a cross-sectional view of the present invention.

[0032] In the diagram: 1. Main body, 11. Water pipe, 12. Bracket, 121. Mounting hole, 122. Guide post, 2. Fixed cylinder, 3. Rotating cylinder, 4. First protective layer, 5. Second protective layer, 123. Annular groove, 6. Elastic element, 7. Stop block. Detailed Implementation

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0034] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0035] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] Reference Figures 1-3 This is the first embodiment of the present invention, which proposes a prefabricated drainage blind ditch, including: a main body 1, which has several main bodies 1 connected end to end, the main body 1 including: a drainage pipe 11, the several drainage pipes 11 connected together for drainage; a bracket 12 for supporting the drainage pipes 11, the bracket 12 having a mounting hole 121 on one side and a guide post 122 on the other side, the guide post 122 of adjacent main bodies 1 being used to slide into the mounting hole 121 of adjacent main bodies 1.

[0038] In this embodiment, to address the problem of complex materials used in blind drains in related technologies, and the fact that each material is not readily available and requires processing or purchase, this embodiment designs the blind drain as a prefabricated unit. Each material is manufactured into a single main body 1, which is then transported to the blind drain design site for assembly. First, drainage pipes 11 are manufactured according to design requirements. Corrosion-resistant and high-strength materials can be selected to manufacture the drainage pipes 11, ensuring their long-term and effective drainage function. Several drainage pipes 11 are connected using appropriate connection methods to ensure the sealing of the connection points and prevent leakage. Next, a bracket 12 is manufactured. The bracket 12 ensures stable support for the drainage pipes 11. Mounting holes 121 are precisely machined on one side of the bracket 12, with the size and shape matching the guide post 122. Guide posts 122 are manufactured on the other side of the bracket 12, with appropriate length and diameter to allow them to slide smoothly into the mounting holes 121 of adjacent main bodies 1. The manufactured main bodies 1 are then transported to the blind drain design site. On-site, the position of the first main body 1 is determined and placed in the predetermined location. Then, pick up the second main body 1, align its guide post 122 with the mounting hole 121 of the first main body 1, and gently push it so that the guide post 122 slides into the mounting hole 121, completing the connection of the two main bodies 1. After the main bodies 1 are connected, fix the blind drain. Concrete can be poured on both sides of the blind drain to prevent it from moving during use. The guide post 122 can effectively prevent the main body 1 from being misaligned or causing water leakage due to ground settlement during installation.

[0039] Prefabricated drainage blind drains are designed as multiple main components 1, greatly simplifying the structure compared to the complex material composition of traditional blind drains. Each main component 1 consists of a drainage pipe 11 and a support 12, reducing the types of materials used and facilitating management and quality control. Each main component 1 is manufactured in the factory and can be transported to the construction site as a finished product. This avoids the need for self-processing or post-purchase processing of traditional blind drain materials, saving construction time and costs. On-site assembly is simple and quick, improving construction efficiency. Because the main components 1 are prefabricated, the length and shape of the blind drain can be flexibly adjusted according to actual needs. If the layout of the blind drain needs to be changed, only the main components 1 need to be disassembled and reassembled, offering high flexibility.

[0040] Furthermore, the guide post 122 is a prism, and after the guide post 122 slides into the mounting hole 121, it fits into the mounting hole 121.

[0041] In this embodiment, the guide post 122 is designed in a prism shape, and different types such as triangular prisms and quadrangular prisms can be selected according to actual needs. During the manufacturing process, the dimensional accuracy of the guide post 122 is ensured, making all its sides flat and smooth. The shape and size of the mounting hole 121 match the guide post 122, and the machining accuracy must also be ensured so that the guide post 122 can slide smoothly into the mounting hole 121 and fit tightly. During on-site assembly, align the prism-shaped guide post 122 of one main body 1 with the mounting hole 121 of the adjacent main body 1, and gently push the main body 1 so that the guide post 122 slides smoothly into the mounting hole 121. Due to the fitting design of the guide post 122 and the mounting hole 121, the stability and accuracy of the connection can be ensured during the connection process. As the main bodies 1 are connected in sequence, a continuous blind drain structure is formed. After the connection is completed, the connection parts can be inspected to ensure that the guide post 122 and the mounting hole 121 fit completely without gaps.

[0042] After the prismatic guide post 122 fits into the mounting hole 121, it provides support in multiple directions, making the connection between adjacent main bodies 1 more stable and reliable. Compared with the traditional circular guide post 122, the prismatic guide post 122 is more effective in preventing relative movement and rotation between the main bodies 1. The tightly fitted guide post 122 and mounting hole 121 effectively prevent groundwater leakage from the connection point. During the use of the blind drain, it ensures the sealing of the drainage system, improves drainage efficiency, and avoids the impact of leakage on the surrounding environment. The tightly connected main bodies 1 can jointly withstand external pressure and load, enhancing the structural strength of the blind drain. In projects with high stability requirements, such as high-speed railway subgrades, it can better ensure the stability of the subgrade base and meet the requirements of train operation.

[0043] Furthermore, the guide post 122 has threads and also includes: a fixed cylinder 2, which is disposed on the bracket 12 and communicates with the mounting hole 121; and a rotating cylinder 3, which is rotatably disposed on the fixed cylinder 2. The rotating cylinder 3 also has threads, and after the rotating cylinder 3 rotates, the threads are disposed on the guide post 122.

[0044] In this embodiment, the fixed cylinder 2 is fixed to the bracket 12 and communicates with the mounting hole 121. The rotating cylinder 3 has threads machined inside to match the guide post 122. When the guide post 122 of one main body 1 slides into the mounting hole 121 of the adjacent main body 1, the rotating cylinder 3 is rotated so that its threads gradually engage with the threads of the guide post 122. The rotating cylinder 3 continues to be rotated until it is firmly threaded onto the guide post 122. The fastening action of the rotating cylinder 3 further strengthens the connection stability between adjacent main bodies 1. During the process of the rotating cylinder 3 being threaded onto the guide post 122, the drain pipe 11 can be adjusted and fixed simultaneously. If there is any looseness or unevenness in the connection between the drain pipes 11, the fastening force of the rotating cylinder 3 can be used to assist in adjusting the position of the drain pipes 11, ensuring that the connection between the drain pipes 11 is tight and reliable.

[0045] After the rotating cylinder 3 is threadedly fixed to the guide post 122, it provides greater connection force, further enhancing the connection stability between adjacent main bodies 1. Compared to relying solely on concrete pouring, this threaded connection method can better resist external tension, pressure, and vibration. The design of the rotating cylinder 3 makes the connection of the main bodies 1 more convenient and quick. During installation, the tightness of the connection can be adjusted by rotating the rotating cylinder 3 to adapt to different construction conditions and requirements. In some complex construction environments, such as unstable foundations or significant vibrations, the threaded rotating cylinder 3 can better adapt to these adverse factors, ensuring the structural stability and drainage effect of the blind drain.

[0046] Furthermore, it also includes: a first protective layer 4, disposed on the bracket 12. It also includes: a second protective layer 5, disposed on the first protective layer 4.

[0047] In this embodiment, a suitable material is selected to make a grating as the first protective layer 4. The grating should have sufficient strength and corrosion resistance to withstand certain pressure and external forces. The fabricated grating is installed on the support 12 and can be fixed by welding, bolting, or other methods to ensure that the grating is firmly attached to the support 12 and will not fall off or shift during use. A certain amount of crushed stone is prepared as the second protective layer 5. The particle size and gradation of the crushed stone should be selected according to actual needs to ensure that it can play a good protective role. The crushed stone is evenly laid on the first protective layer 4 (grating), and the laying thickness should meet the design requirements. It can be laid manually or mechanically to ensure the flatness and compaction of the crushed stone.

[0048] The grating mesh of the first protective layer 4 effectively blocks larger debris from entering the blind drain, preventing blockage of the drainage pipe 11. Simultaneously, the grating mesh also provides some support, enhancing the structural stability of the blind drain. The crushed stone of the second protective layer 5 further filters groundwater, preventing fine particles from entering the drainage pipe 11 and ensuring the smooth flow of the drainage system. The crushed stone also acts as a buffer, reducing the impact of external pressure on the blind drain. The double protective layer effectively protects the internal structure of the blind drain, reducing damage caused by debris blockage, external forces, and other factors, thereby extending the service life of the blind drain. The combination of the first protective layer 4 and the second protective layer 5 can adapt to different geological conditions and construction environments, improving the versatility and reliability of the blind drain. It can effectively provide protection in both soft soil and hard rocky areas.

[0049] Furthermore, the end of the guide post 122 away from the bracket 12 has a chamfer.

[0050] In this embodiment, when manufacturing the guide post 122, a chamfer is applied to the end of the guide post 122 furthest from the bracket 12 using specialized processing equipment. The chamfer is finely polished to ensure a smooth surface, preventing scratches on the inner wall of the mounting hole 121 or causing jamming when inserted into it. When connecting the main bodies 1, the guide post 122 of one main body 1 is aligned with the mounting hole 121 of the adjacent main body 1. Because the end of the guide post 122 has a chamfer, it can be inserted into the mounting hole 121 more easily. The main body 1 is gently pushed, allowing the guide post 122 to slide smoothly into the mounting hole 121 under the guidance of the chamfer until the connection is complete.

[0051] The chamfered design at the end of the guide post 122 facilitates the connection between the main bodies 1. During assembly, it eliminates the need for excessive effort and time to align the mounting holes 121, significantly improving construction efficiency. The chamfer prevents severe friction between the guide post 122 and the edge of the mounting hole 121 when inserted, thus reducing wear on both the guide post 122 and the mounting hole 121. The guiding effect of the chamfer allows the guide post 122 to enter the mounting hole 121 more accurately, thereby improving the connection precision between the main bodies 1. This helps ensure the overall structural stability of the blind drain and improves drainage performance.

[0052] Furthermore, the guide post 122 has an annular groove 123 and also includes: a plurality of elastic elements 6, which are spaced apart along the circumference in the mounting hole 121; and a plurality of stop blocks 7, which are correspondingly disposed on the elastic elements 6. The elastic elements 6 are used to provide force for the stop blocks 7 to engage with the annular groove 123.

[0053] In this embodiment, an annular groove 123 is machined on the guide post 122, which can fit well with the stop block 7 and the elastic element 6. Several installation positions for the elastic element 6 are evenly spaced along the circumference within the mounting hole 121 of the bracket 12. The elastic element 6 can be a spring or other elastic component. The elastic element 6 is securely installed at the designated position within the mounting hole 121. A stop block 7 is installed for each elastic element 6. The shape and size of the stop block 7 must match the annular groove 123, allowing it to smoothly engage with the annular groove 123 under the action of the elastic element 6. This ensures a secure and reliable connection between the stop block 7 and the elastic element 6, capable of withstanding a certain amount of external force.

[0054] When the guide post 122 of one main body 1 slides into the mounting hole 121 of an adjacent main body 1, the guide post 122 first compresses the elastic element 6 and the stop block 7. As the guide post 122 continues to be inserted, when the annular groove 123 reaches the position of the stop block 7, the elastic element 6 releases its elastic force, pushing the stop block 7 into the annular groove 123. After the stop block 7 is engaged in the annular groove 123, it can effectively prevent the guide post 122 from accidentally coming out of the mounting hole 121, further enhancing the connection stability between the main bodies 1.

[0055] The elastic element 6 and the stop block 7 provide an additional locking mechanism for the guide post 122. When the stop block 7 engages with the annular groove 123, it greatly enhances the connection stability between adjacent main bodies 1, preventing separation of the main bodies 1 due to external forces during use. In environments prone to vibration, such as high-speed railway subgrades, the combination of the elastic element 6 and the stop block 7 provides excellent seismic resistance. Even under vibration, it ensures a secure and reliable connection between the main bodies 1, guaranteeing the normal drainage function of the blind drain.

[0056] Furthermore, the upper side of the bracket 12 is semi-circular, and the lower side is square.

[0057] In this embodiment, the semi-circular design on the upper side of the bracket 12 better conforms to the shape of the drain pipe 11, providing more stable and uniform support for the drain pipe 11. Compared with traditional planar supports, the semi-circular support can reduce local pressure on the drain pipe 11, reducing the risk of deformation or damage to the drain pipe 11 due to uneven stress. The square design on the lower side of the bracket 12 increases the contact area with the ground or foundation structure, improving the stability of the bracket 12. The square structure is easier to fix and install, and can better resist external pressure and vibration, ensuring that the blind drain maintains a stable working state in various complex environments.

[0058] Furthermore, the drain pipe 11 is a corrugated pipe.

[0059] In this embodiment, a corrugated pipe of suitable specifications is selected as the drainage pipe 11. The corrugated pipe can be made of materials such as HDPE (high-density polyethylene), and the material type is determined according to specific engineering requirements and the usage environment. The diameter, wall thickness, wave height, and wave pitch of the corrugated pipe are considered to ensure that it can meet the drainage flow and pressure requirements. The corrugated pipe is placed on the support 12, and the semi-circular part of the support 12 is used to support the corrugated pipe. The direction and slope of the corrugated pipe are determined according to the design layout of the drainage system to ensure smooth drainage. Special connecting fittings or sealant are used to connect the corrugated pipe. During connection, it is necessary to ensure a tight and leak-free connection, and the elasticity of the corrugated pipe must be considered to avoid breakage at the connection due to temperature changes or external forces during use. A rubber component is designed at the corrugated pipe connection for sealing. The rubber component expands when exposed to water, enhancing the sealing effect. The parameters of the rubber component are shown in Table 1.

[0060] Table 1 Parameters of rubber parts

[0061]

[0062] Corrugated pipes have a large drainage cross-sectional area and high drainage efficiency. Their unique corrugated structure increases the rigidity and strength of the pipe, while also reducing water flow resistance and improving drainage speed to some extent. Corrugated pipes have good flexibility, allowing them to adapt to certain degrees of terrain changes and uneven settlement, preventing pipe rupture or blockage due to foundation deformation, and ensuring the long-term stable operation of the drainage system.

[0063] Furthermore, it also includes: geotextile, which is installed on the second protective layer 5.

[0064] In this embodiment, the geotextile possesses good permeability, corrosion resistance, and tensile strength. The specifications and performance parameters of the geotextile are determined based on the usage environment and drainage requirements of the blind drain. After the second protective layer 5 (crushed stone) is laid, the geotextile is laid flat on the crushed stone layer. Ensure that the geotextile completely covers the crushed stone layer without wrinkles or overlaps. Appropriate fixing measures, such as soil nails or sandbags, can be taken to secure the edges of the geotextile to the surrounding ground to prevent displacement during use.

[0065] Geotextile, installed on the second protective layer 5, further filters groundwater, preventing fine particles and impurities from entering the blind drain and ensuring unobstructed drainage. Geotextile effectively blocks particulate matter such as soil and sand while allowing groundwater to pass through smoothly, improving the drainage efficiency and service life of the blind drain. Combined with the gravel layer, geotextile prevents gravel from moving or clogging the drainage pipe 11 under the action of water flow. It maintains the relative stability of the gravel, ensuring the drainage channel remains unobstructed, reducing the frequency of maintenance and cleaning. Geotextile protects the underlying gravel layer and other structures. It reduces the impact of external pressure on the gravel layer, preventing deformation or damage due to compression. Simultaneously, geotextile protects against erosion from ultraviolet rays and chemicals, extending the service life of the blind drain. Geotextile is lightweight, easy to lay, and the construction process is simple and quick. It can be cut and spliced ​​as needed to adapt to blind drains of different shapes and sizes. Compared with traditional filter materials, geotextile has lower construction costs and improves construction efficiency.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A prefabricated drainage blind ditch, characterized in that, include: The main body (1) has several components connected end to end, and each component (1) includes: Drainage pipe (11), a plurality of said drainage pipes (11) are connected together for drainage; A bracket (12) is used to support the drain pipe (11). The bracket (12) has a mounting hole (121) on one side and a guide post (122) on the other side. The guide post (122) of the adjacent body (1) is used to slide into the mounting hole (121) of the adjacent body (1).

2. The prefabricated drainage blind ditch according to claim 1, characterized in that, The guide post (122) is a prism. After the guide post (122) slides into the mounting hole (121), it fits into the mounting hole (121).

3. The prefabricated drainage blind ditch according to claim 1, characterized in that, The guide post (122) has threads and further includes: A fixing cylinder (2) is disposed on the bracket (12) and communicates with the mounting hole (121); The rotating cylinder (3) is rotatably mounted on the fixed cylinder (2). The rotating cylinder (3) also has threads. After the rotating cylinder (3) rotates, the threads are mounted on the guide post (122).

4. The prefabricated drainage blind ditch according to claim 1, characterized in that, Also includes: The first protective layer (4) is disposed on the bracket (12).

5. The prefabricated drainage blind ditch according to claim 4, characterized in that, Also includes: The second protective layer (5) is disposed on the first protective layer (4).

6. The prefabricated drainage blind ditch according to claim 1, characterized in that, The end of the guide post (122) away from the bracket (12) has a chamfer.

7. The prefabricated drainage blind ditch according to claim 1, characterized in that, The guide post (122) has an annular groove (123) and further includes: The elastic element (6) has a plurality of them, which are arranged at circumferential intervals in the mounting hole (121); A plurality of stop blocks (7) are provided on the elastic member (6), and the elastic member (6) is used to provide the force for the stop blocks (7) to engage with the annular groove (123).

8. The prefabricated drainage blind ditch according to claim 1, characterized in that, The upper side of the bracket (12) is semi-circular, and the lower side is square.

9. The prefabricated drainage blind ditch according to claim 1, characterized in that, The drain pipe (11) is a corrugated pipe.

10. The prefabricated drainage blind ditch according to claim 5, characterized in that, Also includes: Geotextile is placed on the second protective layer (5).

Images