Hidden drainage structure for municipal pipe gallery construction
By employing a concealed drainage structure in municipal utility tunnels, including drainage ditches, collection wells, gratings, and adsorption filters, combined with a water pump to achieve two-stage filtration, the problems of space occupation and easy clogging associated with traditional drainage structures are solved, resulting in efficient, concealed, and easy-to-maintain drainage.
Patent Information
- Application Number
- CN202520468926.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-17
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The existing municipal utility tunnel drainage structure is bulky, affecting the layout of facilities. Furthermore, the filters and sedimentation tanks are easily clogged by debris, making them difficult to clean quickly and affecting drainage performance.
The system employs a concealed drainage structure, including a drainage ditch, a collection well, a primary filtration structure (grating plate), and a secondary filtration structure (adsorption filter plate). Combined with a water pump, it achieves two-stage filtration and drainage. The grating plate is flush with the lower wall of the pipe gallery, the adsorption filter plate is movable for easy cleaning, and the manhole cover is easy to maintain.
It achieves efficient drainage without occupying the space of the utility tunnel, avoids blockage, improves the filtration effect and maintainability of the drainage system, and ensures the safe and stable operation of the utility tunnel.
Smart Images

Figure CN224001969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe gallery drainage technology, and in particular to a concealed drainage structure for municipal pipe gallery construction. Background Technology
[0002] With the accelerating pace of urbanization, the comprehensive utilization of urban underground space is imperative. Municipal utility tunnels, as a key part of urban infrastructure, centrally house various municipal pipelines such as electricity and communications, effectively solving problems like "road zipper" and "aerial spider web," and improving the overall image and operational efficiency of the city. The normal operation of the utility tunnel depends on a good drainage system. However, the ground space of the utility tunnel is limited, and traditional drainage structures, due to their large size, occupy a lot of ground, affecting the layout and construction of other facilities within the tunnel. Based on this, concealed drainage structures have emerged, which can achieve drainage functions without affecting the use of the utility tunnel space. However, existing drainage structures still have shortcomings. On the one hand, their large size affects the layout of utility tunnel facilities. On the other hand, some drainage structure designs are not conducive to daily maintenance and repair. Components such as filters and sedimentation tanks are easily clogged by debris and are difficult to clean quickly, thus affecting the drainage effect. Utility Model Content
[0003] The main purpose of this utility model is to provide a concealed drainage structure for the construction of municipal utility tunnels, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A concealed drainage structure for municipal utility tunnel construction includes a utility tunnel body. A ditch is formed at the front of the lower inner wall of the utility tunnel body. A collection well is formed at the front of the lower inner wall of the utility tunnel body. A water diversion channel is formed at the upper left inner wall of the collection well. The collection well is located directly to the right of the ditch. A through-flow water inlet is formed on the right inner right wall of the ditch. The through-flow water inlet is located directly to the lower right side of the water diversion channel. The ditch communicates with the interior of the collection well through the through-flow water inlet. A primary filter structure is movably engaged above the ditch. A slot is formed on the right inner lower wall of the utility tunnel body, located between the ditch and the collection well. A secondary filter structure is movably inserted into the slot. A manhole cover is movably installed on the upper right side of the collection well. A water pump is fixedly connected to the front right side of the utility tunnel body. A drainage pipe is fixedly connected to the output end of the water pump.
[0006] Preferably, the drainage ditch is located on the upper left side of the collection well, and the drainage ditch is connected to the interior of the collection well through a water inlet. The rear end of the water pump is fixedly connected to a suction pipe, which extends into the collection well.
[0007] By adopting the above technical solution: the drainage ditch collects the water accumulated in the pipe gallery, which flows into the collection well through the water inlet and the water diversion channel. The primary filtration structure and the secondary filtration structure intercept debris in turn to avoid blockage. The water pump draws water from the collection well through the suction pipe and discharges it through the drainage pipe, ensuring efficient, concealed and stable drainage.
[0008] Preferably, the primary filtration structure includes a grid plate, the upper end of which has several large filter openings that pass through vertically, and long handles are fixedly connected to the upper left and upper right parts of the grid plate.
[0009] By adopting the above technical solution: the large filter openings on the grating can intercept larger debris, initially filter the water entering the ditch, reduce the risk of subsequent blockage, and the long handle makes it easy to move, snap, remove and clean the grating, making maintenance convenient.
[0010] Preferably, the area of the grating plate is larger than the area of the ditch, the grating plate is connected to the interior of the ditch through several large filter ports, and the upper end surface of the grating plate is flush with the lower inner wall of the pipe gallery body.
[0011] By adopting the above technical solution: the area of the grating plate is larger than that of the ditch, which can completely cover it and effectively intercept debris. The filter port allows water to flow into the ditch, and the grating plate is flush with the lower wall of the pipe gallery, so as not to affect normal passage and other operations in the pipe gallery.
[0012] Preferably, the secondary filtration structure includes an adsorption filter plate, the right end of which has several small filter holes that pass through from left to right, and a handle is fixedly connected to the front and rear of the upper end of the adsorption filter plate.
[0013] By adopting the above technical solution, the small filter holes on the adsorption filter plate can perform secondary filtration of the water flow, intercepting smaller impurities and improving water quality. The handle makes it easy for staff to pull the adsorption filter plate out of the slot, facilitating cleaning and replacement and ensuring smooth drainage.
[0014] Preferably, the adsorption filter plate is movably inserted into the slot, and the adsorption filter plate is located on the upper left side of the water diversion channel. Several of the small filter holes are connected to the interior of the ditch and the collection well.
[0015] By adopting the above technical solution: the adsorption filter plate is movably inserted into the slot, which is convenient for installation and disassembly. Its position allows the water to be filtered through it before entering the collection well. The small filter holes connect the ditch and the collection well, further filtering impurities in the water and ensuring the normal operation of the water quality in the collection well and the drainage system.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. In this utility model, a ditch is used to collect accumulated water in the pipe gallery, and water is introduced into the collection well through a water inlet. The reasonable location design ensures smooth drainage. The primary and secondary filtration structures can filter the water flow in two stages, effectively intercepting debris and preventing blockage of the subsequent drainage system. The collection well can temporarily store accumulated water, providing a buffer for the water pump to pump water. The water pump uses a suction pipe to draw water from the collection well and discharges it from the pipe gallery through a drainage pipe, thus realizing the drainage function. The manhole cover facilitates the maintenance and repair of the collection well. The overall structure is compact and concealed, which does not affect the layout of other facilities in the pipe gallery, and can drain water efficiently, ensuring the safe and stable operation of the pipe gallery.
[0018] 2. In this utility model, the area of the grating plate is larger than that of the ditch and the upper end face is flush with the lower wall of the pipe gallery. It does not affect passage and can fully cover the ditch. The large filter port on it can perform preliminary filtration of the water entering the ditch, intercepting larger debris and reducing the risk of subsequent blockage. The long handle makes it easy to install, remove and clean the grating plate. The adsorption filter plate is inserted into the slot in a reasonable position and can perform secondary filtration of the water flowing to the collection well. The small filter hole further intercepts smaller impurities and improves water quality. The handle makes it easy for staff to pull out the adsorption filter plate for maintenance. The two work together to effectively improve the filtration effect and maintainability of the drainage system. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a concealed drainage structure for the construction of municipal utility tunnels according to this utility model.
[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of a concealed drainage structure for municipal utility tunnel construction according to the present invention.
[0021] Figure 3 This is a schematic diagram of the first filtration structure of a concealed drainage structure for municipal utility tunnel construction according to this utility model.
[0022] Figure 4 This is a schematic diagram of the secondary filtration structure of a concealed drainage structure for municipal utility tunnel construction according to this utility model.
[0023] In the diagram: 1. Pipe gallery body; 2. Ditch; 3. Collection well; 4. Water inlet; 5. Primary filtration structure; 6. Slot opening; 8. Secondary filtration structure; 9. Manhole cover; 10. Water pump; 11. Drainage pipe; 12. Water diversion channel; 51. Grating plate; 52. Large filter port; 53. Long handle; 81. Adsorption filter plate; 82. Lifting handle; 83. Small filter hole. Detailed Implementation
[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0027] Please see Figure 1-4 This utility model provides a technical solution:
[0028] A concealed drainage structure for municipal utility tunnel construction includes a utility tunnel body 1. A drainage ditch 2 is formed at the front of the inner lower wall of the utility tunnel body 1. A water collection well 3 is formed at the front of the inner lower wall of the utility tunnel body 1. A water diversion channel 12 is formed at the upper part of the inner left wall of the water collection well 3. The water collection well 3 is located directly to the right of the drainage ditch 2. A water inlet 4, which runs through the drainage ditch 2 from left to right, is formed at the lower right side of the water diversion channel 12. The drainage ditch 2 flows through the water inlet. 4 is connected to the interior of the water collection well 3. The primary filter structure 5 is movably connected to the top of the ditch 2. The slot 6 is located on the lower right side of the inner wall of the pipe gallery body 1. The slot 6 is located between the ditch 2 and the water collection well 3. The secondary filter structure 8 is movably inserted into the slot 6. The well cover 9 is movably installed on the upper right side of the water collection well 3. The water pump 10 is fixedly connected to the front right side of the pipe gallery body 1. The output end of the water pump 10 is fixedly connected to the drain pipe 11.
[0029] In this embodiment, the drainage ditch 2 is located directly to the upper left of the collection well 3. The drainage ditch 2 is connected to the interior of the collection well 3 through the water inlet 4. A suction pipe is fixedly connected to the rear end of the water pump 10, extending into the collection well 3. The primary filtration structure 5 includes a grating plate 51. Several large filter openings 52 are opened at the upper end of the grating plate 51. Long handles 53 are fixedly connected to the upper left and upper right parts of the grating plate 51. The area of the grating plate 51 is larger than the area of the drainage ditch 2. The grating plate 51 is connected to the several large filter openings 52. The upper surface of the grating plate 51 is flush with the lower inner wall of the pipe gallery body 1. The secondary filtration structure 8 includes an adsorption filter plate 81. The right end of the adsorption filter plate 81 has several small filter holes 83 that pass through from left to right. The front and rear upper parts of the adsorption filter plate 81 are fixedly connected to a handle 82. The adsorption filter plate 81 is movably inserted into the slot 6. The adsorption filter plate 81 is located on the upper left side of the water diversion channel 12. The several small filter holes 83 are connected to the interior of the grating plate 2 and the water collection well 3.
[0030] Through the above scheme: the water in the pipe gallery is first filtered through the large filter port 52 on the grating plate 51 of the primary filtration structure 5 to intercept larger debris. The water flows into the main ditch 2, and then flows through the water outlet 4 to the collection well 3. Along the way, it passes through the adsorption filter plate 81 of the secondary filtration structure 8, where the small filter holes 83 perform secondary filtration to intercept smaller debris. Finally, the water in the collection well 3 is pumped out by the water pump 10 through the suction pipe and discharged through the drain pipe 11. The main ditch 2 and the collection well 3 are reasonably set on the lower inner wall of the pipe gallery body 1. The upper surface of the grating plate 51 is flush with the lower inner wall of the pipe gallery body 1. The adsorption filter plate 81 is movably inserted into the slot 6. The overall structure is compact and does not occupy too much pipe gallery space, avoiding affecting the layout of other facilities. In addition, the grating plate 51 is equipped with a long handle 53 and the adsorption filter plate 81 is equipped with a lifting handle 82, which makes it easy to remove and clean, reduces the difficulty of cleaning, and can solve the problem of filter screen blockage in a timely manner, ensuring the drainage effect.
[0031] It should be noted that this utility model is a concealed drainage structure for municipal utility tunnel construction. During use, when water accumulates inside the utility tunnel body 1, the water first flows to the grating plate 51 of the primary filtration structure 5. The large filter openings 52 on the grating plate 51 perform preliminary filtration, intercepting larger debris. The pre-filtered water flows into the main ditch 2 through the large filter openings 52. Then, the water collects in the main ditch 2 and flows to the collection well 3 through the water outlet 4. During the flow to the collection well 3, the water passes through the adsorption filter plate 81 of the secondary filtration structure 8. The small filter holes 83 on the adsorption filter plate 81 perform secondary filtration, further intercepting smaller debris. Water that has undergone secondary filtration flows into the collection well 3 through the water diversion channel 12. When the water level in the collection well 3 reaches a certain height, the water pump 10 starts and pumps the water out of the collection well 3 through the connected suction pipe. The water is then discharged outside the pipe gallery body 1 through the drainage pipe 11. Afterwards, workers can remove the grating plate 51 through the long handle 53 and the adsorption filter plate 81 through the lifting handle 82 for cleaning and maintenance. They can also open the well cover 9 to inspect the collection well 3. Therefore, through the cooperation of the primary filtration structure 5 and the secondary filtration structure 8, debris is effectively filtered. The drainage system, including the ditch 2, the collection well 3, and the water pump 10, works together to achieve drainage and is easy to maintain, thus ensuring efficient, concealed, and stable drainage within the pipe gallery body 1.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A concealed drainage structure for municipal pipe gallery construction, comprising a pipe gallery body (1), characterized in that: The inner lower wall front of the pipe gallery body (1) is provided with a ditch (2), the inner lower wall front of the pipe gallery body (1) is provided with a water collecting well (3), the inner left wall upper portion of the water collecting well (3) is provided with a water diversion guide groove (12), the water collecting well (3) is located at the right of the ditch (2), the inner right wall of the ditch (2) is provided with a left-right through water passage (4), the water passage (4) is located at the right lower side of the water diversion guide groove (12), the ditch (2) is communicated with the inside of the water collecting well (3) through the water passage (4), the first filtering structure (5) is movably clamped above the ditch (2), the inner lower wall right portion of the pipe gallery body (1) is provided with a slot (6), the slot (6) is located between the ditch (2) and the water collecting well (3), the secondary filtering structure (8) is movably inserted in the slot (6), the well lid (9) is movably installed at the right upper portion of the water collecting well (3), the water pump (10) is fixedly connected to the front right portion of the pipe gallery body (1), and the output end of the water pump (10) is fixedly connected with a drain pipe (11).
2. The concealed drainage structure for municipal conduit construction according to claim 1, characterized in that: The ditch (2) is located on the left upper side of the water collecting well (3), and the rear end of the water pump (10) is fixedly connected with a water suction pipe.
3. The concealed drainage structure for municipal conduit construction according to claim 1, characterized in that: The first filtering structure (5) comprises a grating plate (51), a plurality of large filtering openings (52) are formed in the upper end of the grating plate (51), and long handles (53) are fixedly connected to the left upper end and the right upper end of the grating plate (51).
4. The concealed drainage structure for municipal conduit construction according to claim 3, characterized in that: The area of the grating plate (51) is greater than that of the ditch (2), the grating plate (51) is communicated with the inside of the ditch (2) through the plurality of large filtering openings (52), and the upper end surface of the grating plate (51) is flush with the inner lower wall surface of the pipe gallery body (1).
5. The hidden drainage structure for municipal conduit construction according to claim 1, characterized in that: The secondary filtering structure (8) comprises an adsorption filter plate (81), a plurality of small filtering holes (83) are formed in the right end of the adsorption filter plate (81), and a lifting handle (82) is fixedly connected to the front upper end and the rear upper end of the adsorption filter plate (81).
6. The hidden drainage structure for municipal conduit construction according to claim 5, characterized in that: The adsorption filter plate (81) is movably inserted in the slot (6), the adsorption filter plate (81) is located on the left upper side of the water diversion guide groove (12), and the plurality of small filtering holes (83) are communicated with the inside of the ditch (2) and the water collecting well (3).