Safety type cable well
By introducing foam components and sensors into cable wells to automatically detect water levels and trigger water pumps, the problem of cable wells relying on manual pumping has been solved, achieving automated operation and maintenance, avoiding cable insulation aging and well body corrosion, and improving safety and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-23
- Publication Date
- 2026-04-07
AI Technical Summary
Existing cable wells rely on manual pumping at regular intervals, which results in high maintenance costs, slow response times, and is prone to cable insulation aging, metal component corrosion, and well collapse.
A safe cable well was designed, which uses foam components and sensors to automatically detect the water level and trigger the water pump to automatically pump water. Combined with a seepage well, it can achieve automatic water pumping and avoid manual intervention.
It enables automatic detection and pumping, reduces operation and maintenance costs, prevents cable insulation aging and well body corrosion, and improves safety and stability.
Smart Images
Figure CN224092571U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of cable well construction, and particularly relates to a safe cable well. BACKGROUND
[0002] The cable well is a underground inspection well for installation or maintenance in cable burying engineering, when the cable line needs to be checked, tested, repaired, replaced or positioned and handled, the technical personnel can enter the well through the well mouth to operate. After the cable laying is completed in the cable well, the water seepage of the cable well needs to be prevented, the rainwater or underground water seepage will cause the water seepage phenomenon of the cable well, and the water seepage will cause the water accumulation, the rainwater seepage along the inner side wall of the well body will flow into the well, and long-term soaking will cause the cable insulation aging and the metal part rusting, and the water seepage will also cause the water seepage corrosion of the well body side wall, and long-time corrosion will easily cause the well body collapse, and the related technology depends on the artificial periodical water pumping. Therefore, the cable well depends on the artificial periodical water pumping, the operation and maintenance cost is high, and the response is lagged, and the cable well has great defects. CONTENT OF THE UTILITY MODEL
[0003] In order to overcome the defects of the related technology, the present application provides a safe cable well.
[0004] The safe cable well comprises a cable well body, a cover plate and pipelines, the cable well body comprises a cushion layer and well walls, the cushion layer is arranged at the bottom of the cable well body, the well walls are arranged at two sides of the cable well body respectively, and a water collecting port is arranged on the cushion layer; the cover plate is arranged above the well walls, and the pipelines are arranged in the cable well body.
[0005] The safe cable well is further provided with a foam assembly and a sensor, the foam assembly is arranged at the water collecting port, and the foam assembly is provided with a plurality of water inlet holes; when the water storage in the water collecting port reaches a certain degree, the water level rises, the foam assembly can float upward, and the sensor is triggered;
[0006] The safe cable well is further provided with a water pumping pipe and a water pump; when the sensor is triggered, the water pump is automatically started, and the accumulated water in the water collecting port and the cable well body is pumped out through the water pumping pipe;
[0007] The safe cable well is further provided with a water seepage well, and the water pumped out from the cable well body is discharged into the water seepage well.
[0008] Further, coarse sand is arranged in the water collecting port.
[0009] Further, the well wall comprises an upper well wall and a lower well wall, and the upper well wall and the lower well wall are fixedly connected.
[0010] Further, an anchor hook is arranged above the upper well wall.
[0011] Further, a mounting groove is arranged on the upper well wall, and the mounting groove cooperates with the cover plate.
[0012] Furthermore, the upper well wall is constructed of concrete.
[0013] Furthermore, the lower well wall is constructed of brick.
[0014] Furthermore, the subbase is set as a plain concrete subbase.
[0015] Furthermore, the water inlet is set as a PVC water inlet.
[0016] Furthermore, the cover plate is made of concrete.
[0017] This application has at least one of the following effects:
[0018] 1. This application avoids the shortcomings of related technologies where cable wells rely on manual periodic pumping, resulting in high maintenance costs and slow response times. It provides a safe cable well that achieves automatic pumping. Infiltrating rainwater or groundwater enters the collection port through a round hole and an inlet hole. The lower part of the foam assembly is inserted into the collection port, and the upper cover is positioned above the collection port, below the pipeline. When the water level in the collection port reaches a certain point, the foam assembly floats and rises, triggering a sensor located below the pipeline. This automatically activates the water pump, drawing out the accumulated water from the collection port through the pumping pipe, achieving automatic pumping, saving labor costs, and providing convenience, speed, safety, and stability.
[0019] 2. This application solves the problem that water easily accumulates at the bottom of the well, and long-term immersion leads to aging of cable insulation and corrosion of metal parts; this application also avoids the difficulty of long-term corrosion of the well wall by seepage and water accumulation, which can easily cause the well to collapse.
[0020] 3. In related technologies, low water levels in wells are often difficult to detect automatically. However, in this embodiment, the use of a foam component facilitates water level detection, making it convenient, efficient, and practical. Furthermore, in related technologies, ordinary water level sensors are susceptible to air bubbles / impurities and require cleanliness and smooth flow. In this embodiment, the use of a foam component avoids these impurity problems. Attached Figure Description
[0021] Figure 1 This is a schematic cross-sectional view of the cable well body described in the embodiments of this application;
[0022] Figure 2 This is a schematic diagram of the structure of the foam component described in the embodiments of this application;
[0023] Figure 3 This is a structural schematic diagram of the foam component described in the embodiments of this application from another perspective;
[0024] Figure 4 This is a schematic diagram of the overall cross-sectional structure of the safety cable well described in the embodiments of this application.
[0025] Explanation of reference numerals in the attached drawings: 1. Upper well wall; 2. Lower well wall; 3. Cover plate; 4. Subbase; 5. Pipeline; 6. Water inlet; 7. Coarse sand; 8. Anchor hook; 9. Backfill; 11. Foam assembly; 12. Upper cover; 13. Lower insert; 14. Round hole; 15. Water inlet; 16. Pumping hole; 20. Sensor; 30. Pumping pipe; 31. Water pump; 32. Drainage pipe; 33. Seepage well; 34. Filter screen. Detailed Implementation
[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0027] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.
[0028] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0029] Example 1:
[0030] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.
[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4A safety-type cable well includes: a cable well body, a cover plate 3, and pipelines 5. The cable well body includes a bedding layer 4 and well walls. The well walls include an upper well wall 1 and a lower well wall 2. The upper well wall 1 is located above the lower well wall 2, and the upper well wall 1 and lower well wall 2 are fixedly connected. The well walls are respectively located on both sides of the cable well body and are arranged parallel to each other. The bedding layer 4 is located at the bottom of the cable well body, and a water collection port 6 is provided on the bedding layer 4. The water collection port 6 is also filled with coarse sand 7. The design of the coarse sand 7 firstly has a filtering function—the sand layer can intercept silt to prevent clogging of the water collection port 6, which is particularly important in areas with heavy rainfall. In addition, the capillary action of the coarse sand 7 can balance the humidity. The coarse sand 7 also has an anti-corrosion protection function, which can isolate electrolytes: the sand layer reduces the probability of contact between accumulated water and the metal parts of the cable well wall, slowing down electrochemical corrosion. The coarse sand 7 can also neutralize acidity: if limestone coarse sand is used, it can slightly neutralize acid rain (pH 5-6), reducing the erosion of concrete. A cover plate 3 is installed above the well wall, and an installation groove is also provided on the upper well wall 1, which is fitted with the cover plate 3. An L-shaped anchor hook 8 is provided above the upper well wall 1. Multiple pipelines 5 are installed inside the cable well body. In this embodiment, there are 9 pipelines, arranged in three rows and three columns.
[0032] The safety cable well is also equipped with a foam assembly 11 and a sensor 20. The foam assembly 11 is located at the water inlet 6 and includes an upper cover 12 and a lower insertion part 13, forming a flat mushroom shape. The lower insertion part 13 is inserted into the water inlet 6 and can move up and down within the water inlet 6. The bottom side wall of the foam assembly 11 has multiple water inlet holes 15 and a central circular hole 14. The water inlet holes 15 and the circular hole 14 are used to allow water to enter. When the water in the water inlet 6 reaches a certain level and the water level rises, the foam assembly 11 floats and rises, triggering the sensor 20. Some of the water collects inside the cable well body.
[0033] The safety cable well is also equipped with a pumping pipe 30 and a water pump 31. One end of the water pump 31 is connected to the pumping pipe 30, and the other end is connected to a drain pipe 32. The drain pipe 32 leads to a seepage well 33 to discharge accumulated water. When the sensor 20 is triggered by the top of the foam assembly 11, the water pump 31 automatically starts and pumps out the water from the water collection port 6 and the cable well body through the pumping pipe 30. When the accumulated water is pumped out and the water level drops, the foam assembly 11 returns to its original position, the sensor 20 is no longer triggered, and the water pump 31 automatically stops working. In related technologies, it is usually difficult to automatically detect low water levels in wells. However, in this embodiment, the foam assembly 11 facilitates water level detection, making it convenient, efficient, and practical. Furthermore, in related technologies, ordinary water level sensors 20 are susceptible to air bubbles / impurities and require cleanliness and smooth flow. In this embodiment, the foam assembly 11 avoids the aforementioned impurity problem.
[0034] In this embodiment, sensor 20 is positioned below pipeline 5. A water intake hole 16 is provided on the foam assembly 11. The water intake pipe 30 of the water pump 31 passes through the lower well wall 2 and is inserted into the water intake hole 16. A removable filter screen 34 is provided inside the water intake hole 16 for filtering impurities. A seepage well 33 is provided near the safety cable well of this application. The water pump 31 is located within the seepage well 33. The seepage well 33 has a simpler structure than the safety cable well of this application, facilitating the replacement and maintenance of the water pump 31. The drain pipe 32 of the water pump 31 is located within the seepage well 33 for drainage.
[0035] This application solves the problem of water accumulating at the bottom of the well, which leads to cable insulation aging and metal component corrosion due to long-term immersion; this application also avoids the difficulty of long-term corrosion of the well wall by seepage and water accumulation, which can easily cause the well to collapse.
[0036] In this embodiment, the cable well bedding layer 4 requires a foundation bearing capacity characteristic value fak > 80 kPa. If the bearing capacity does not meet the requirement after excavation, over-excavation should continue to the old soil layer. Soil and stone should be compacted in layers to the bottom of the bedding layer 4. The weight of the crushed stone should account for 30% to 50% of the total weight, the particle size should not exceed 300 mm, and the compaction coefficient should not be less than 0.94. The upper well wall 1 is a C30 concrete well wall, and the lower well wall 2 is a brick well wall, paved with MU15 bricks and masonry with M10 cement mortar. The bedding layer 4 is a C15 plain concrete bedding layer 4. The water inlet 6 is a 200 PVC water inlet 6. The cover plate 3 is two precast concrete cover plates 3. The anchor hook 8 is a pre-embedded galvanized angle iron anchor hook 8. By setting the galvanized angle iron anchor hook 8, the cover plate 3 is locked to the cable well body. It cannot be pried open directly by non-professionals. When vehicles run over it or floods hit it, the anchor hook 8 can resist horizontal shear force, prevent the cover plate 3 from shifting, and improve the safety of the cable well.
[0037] Before laying the cable well, the cable trench is dug in an inverted trapezoidal shape. After the cable well is laid, backfill soil 9 is placed on both sides of the well wall, and then the original ground and greening are restored. In this embodiment, the pipeline 5 is made of composite material components or precast concrete components. In another embodiment, the pipeline 5 can be made of on-site brickwork or C25 concrete, and sensors 20 are installed.
[0038] The inner side of the well wall can be coated with a hydrophobic material layer (such as nano-silica) to reduce sludge adhesion.
[0039] In summary, this application avoids the shortcomings of related technologies where cable wells rely on manual periodic pumping, resulting in high maintenance costs and slow response times. It provides a safe cable well that achieves automatic pumping. Infiltrating rainwater or groundwater enters the water collection port 6 through the round hole 14 and the inlet hole 15. The lower insertion part 13 of the foam component 11 is inserted into the water collection port 6, and the upper cover 12 is positioned above the water collection port 6, below the pipeline 5. When the water in the water collection port 6 reaches a certain level, the water level rises, causing the foam component 11 to float and trigger the sensor 20 located below the pipeline 5. The water pump 31 automatically turns on, pumping out the accumulated water from the water collection port 6 through the pumping pipe 30, achieving automatic pumping, saving labor costs, and providing convenience, speed, safety, and stability. This application provides a safe cable well that can automatically detect and pump out accumulated water, saving labor costs and offering convenience, speed, and stability.
[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A safety-type cable well, characterized in that, include: The cable well body, cover plate (3), and pipelines (5) are provided. The cable well body includes a pad (4) and a well wall. The pad (4) is located at the bottom of the cable well body, and the well walls are located on both sides of the cable well body. A water collection port (6) is provided on the pad (4). The cover plate (3) is located above the well wall, and multiple pipelines (5) are located inside the cable well body. The safety cable well is also equipped with a foam component (11) and a sensor (20). The foam component (11) is located at the water inlet (6) and has multiple water inlets (15). When the water in the water inlet (6) is stored to a certain level, the water level rises, which can cause the foam component (11) to float and rise, triggering the sensor (20). The safety cable well is also equipped with a water pump (30) and a water pump (31); when the sensor (20) is triggered, the water pump (31) automatically turns on and pumps out the water in the water collection port (6) and the water in the cable well body through the water pump (30); The safety cable well is also equipped with a seepage well (33), and the water pump (31) draws water from the cable well body and discharges it into the seepage well (33).
2. The safety cable well according to claim 1, characterized in that, Coarse sand (7) is also installed inside the water inlet (6).
3. The safety cable well according to claim 1, characterized in that, The well wall includes an upper well wall (1) and a lower well wall (2), which are fixedly connected.
4. The safety cable well according to claim 3, characterized in that, An anchor hook (8) is installed above the upper well wall (1).
5. The safety cable well according to claim 4, characterized in that, An installation groove is also provided on the upper well wall (1), which is matched with the cover plate (3).
6. The safety cable well according to claim 5, characterized in that, The upper well wall (1) is set as a concrete well wall.
7. The safety cable well according to claim 6, characterized in that, The lower well wall (2) is set as a brick well wall.
8. The safety cable well according to claim 7, characterized in that, The subbase (4) is set as plain concrete subbase (4).
9. The safety cable well according to claim 8, characterized in that, The water collection port (6) is set as a PVC water collection port (6).
10. The safety cable well according to claim 9, characterized in that, The cover plate (3) is set as a concrete cover plate (3).