Modularly assembled cable trench for pumped storage power plants

Abstract

The utility model discloses a modular assembly's pumped storage power station prefabricated cable trench, including the prefabricated concrete component (1) of section U shape structure, the both ends of prefabricated concrete component (1) are equipped with the sealing protrusion (2), the sealing protrusion (2) on inlaying is equipped with the sealing ring (3), one sealing protrusion (2) is connected with the rubber connecting piece (4) of U shape structure, the both ends of rubber connecting piece (4) are equipped with the connecting groove (5) of cooperation with sealing protrusion (2), and the connecting groove (5) is equipped with the sealing groove (6) of cooperation with sealing ring (3). The utility model has the characteristics of short construction period and easy control quality.

Description

Technical Field

[0001] This utility model relates to a cable trench, and more particularly to a modularly assembled prefabricated cable trench for pumped storage power stations. Background Technology

[0002] Traditional pumped-storage power station cable trenches mainly employ cast-in-place concrete or brick masonry structures. For example, the utility model patent CN213693105 U, "Trough Structure for Brick-Concrete Cable Trench," discloses a trench embedded vertically within a brick wall, and a support arm positioned on the side of the trench facing the brick-concrete cable trench. Its distinguishing feature is the inclusion of vertically extending fixing members, which are fixedly installed on the side of the trench, with the upper end of the fixing member not lower than the upper end of the trench, and the lower end inserted into the foundation of the brick-concrete cable trench. Traditional construction methods have several drawbacks: 1) Long construction period: requiring complex procedures such as on-site formwork, rebar tying, concrete pouring, and curing, which are time-consuming and labor-intensive. 2) Difficult quality control: highly susceptible to on-site construction conditions, worker skill levels, and weather factors, easily leading to quality problems such as cracking and leakage. Therefore, developing a modular cable trench, manufactured in a factory and requiring only simple on-site assembly, could effectively solve these problems. Summary of the Invention

[0003] The purpose of this invention is to provide a modularly assembled prefabricated cable trench for pumped storage power stations. This invention features a short construction period and easy quality control.

[0004] The technical solution of this utility model is as follows: a modularly assembled prefabricated cable trench for a pumped storage power station, comprising a prefabricated concrete component with a U-shaped cross-section, sealing protrusions on both ends of the prefabricated concrete component, a sealing ring embedded on the sealing protrusion, and a U-shaped rubber connector connected to one of the sealing protrusions; the rubber connector has connecting grooves at both ends that mate with the sealing protrusions, and sealing grooves that mate with the sealing rings are provided in the connecting grooves.

[0005] In the aforementioned modularly assembled prefabricated cable trench for pumped storage power stations, a set of vertical toothed grooves are provided on the two outer sides of the prefabricated concrete components.

[0006] In the aforementioned modularly assembled prefabricated cable trench for pumped storage power stations, shock-absorbing components are provided at both ends of the lower surface of the prefabricated concrete components.

[0007] In the aforementioned modular prefabricated cable trench for pumped storage power stations, the vibration damping components include a vibration damping base plate and a vibration damping top plate, with a U-shaped vibration damping elastic pad and a rubber spring provided between the vibration damping base plate and the vibration damping top plate.

[0008] In the aforementioned modular prefabricated cable trench for pumped storage power stations, a cover plate is provided above the prefabricated concrete components and rubber connectors. The upper surfaces of the prefabricated concrete components and rubber connectors are provided with slots, and the cover plate is provided with locking strips on both sides. One side of the cover plate is provided with an overlap sealing groove, and the other side of the cover plate is provided with a matching overlap sealing protrusion.

[0009] Compared with existing technologies, this utility model adopts a modular structure, is manufactured in a factory to ensure product quality, and only requires simple assembly on site, making construction convenient and fast. Specifically, the modular precast cable trench consists of U-shaped precast concrete components, sealing protrusions and sealing rings at both ends of the precast concrete components, and rubber connectors connecting adjacent precast concrete components. The sealing grooves of the rubber connectors engage with the sealing rings, which not only facilitates and securely connects adjacent precast concrete components but also improves sealing performance. Furthermore, the use of rubber connectors reduces mutual interference between adjacent precast concrete components. In summary, this utility model features a short construction period and easy quality control. Attached Figure Description

[0010] Figure 1 This is a top view of the present invention; Figure 2 This is a side view of a precast concrete component; Figure 3 This is a view showing the fit between the cover plate and the precast concrete component.

[0011] The markings in the attached diagram are as follows: 1-Precast concrete component, 2-Sealing protrusion, 3-Sealing ring, 4-Rubber connector, 5-Connecting groove, 6-Sealing groove, 7-Vertical tooth groove, 8-Shock-absorbing component, 81-Shock-absorbing base plate, 82-Shock-absorbing top plate, 83-U-shaped vibration-absorbing elastic pad, 84-Rubber spring, 9-Cover plate, 10-Slot, 91-Slot strip, 92-Overlap sealing groove, 93-Overlap sealing protrusion. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0013] Example: Modularly assembled prefabricated cable trenches for pumped storage power stations, forming a structure as follows... Figure 1-3 As shown, the precast concrete component 1 has a U-shaped cross-section. Both ends of the precast concrete component 1 are provided with sealing protrusions 2, and sealing rings 3 are embedded on the sealing protrusions 2. One of the sealing protrusions 2 is connected to a U-shaped rubber connector 4. Both ends of the rubber connector 4 are provided with connecting grooves 5 that cooperate with the sealing protrusions 2, and the connecting grooves 5 are provided with sealing grooves 6 that cooperate with the sealing rings 3.

[0014] The precast concrete component 1 has a set of vertical toothed grooves 7 on both outer sides. This can improve the connection stability between the precast concrete component and the groove.

[0015] Vibration damping components 8 are provided at both ends of the lower surface of the precast concrete component 1; the vibration damping components 8 include a vibration damping base plate 81 and a vibration damping top plate 82, and a U-shaped vibration damping elastic pad 83 and a rubber spring 84 are provided between the vibration damping base plate 81 and the vibration damping top plate 82. By setting the vibration damping components, a vibration damping buffering effect can be achieved, reducing the impact of ground vibration on the cable trench.

[0016] Both the precast concrete component 1 and the rubber connector 4 are provided with a cover plate 9. The upper end face of the precast concrete component 1 and the rubber connector 4 is provided with a slot 10. The cover plate 9 is provided with a strip 91 on both sides. The cover plate 9 is provided with an overlap sealing groove 92 on one side and a matching overlap sealing protrusion 93 on the other side.

[0017] The bottom of the rubber connector is flush with the bottom of the shock-absorbing assembly.

[0018] The cover is made of plastic.

[0019] As a preferred option, the lower surface of the shock-absorbing base plate is also provided with a set of evenly distributed conical nails that contact the bottom surface to improve grip and thus ensure the stability of the precast concrete components.

[0020] When the precast concrete component leaves the factory, a rubber connector is inserted into one end.

[0021] During the current construction and installation process, a trench for placing the cables is first dug, and the bottom surface is simply leveled. Then, the precast cable trenches are placed sequentially into the trench. During placement, the sealing protrusion at the end of the next precast concrete component engages with the sealing groove in the rubber connector connecting groove of the moving precast concrete component, achieving a tight fit and thus ensuring a stable connection between two adjacent precast concrete components. This installation process is repeated to assemble multiple precast concrete components. After assembly, soil is backfilled on both sides of the trench, ensuring contact between the trench and the sides of the precast concrete components. After the cables are laid in the cable trench, cover plates are placed on each precast concrete component to achieve a seal.

[0022] When the cover plate is closed, the locking strips on both sides of the cover plate engage with the locking grooves on the upper surface of the precast concrete component, and the cover plates at the left and right ends are connected and sealed by the overlapping sealing groove and the overlapping sealing protrusion.

Claims

1. A modularly assembled prefabricated cable trench for a pumped storage power station, characterized in that: The precast concrete component (1) has a U-shaped cross-section. Both ends of the precast concrete component (1) are provided with sealing protrusions (2). A sealing ring (3) is embedded on the sealing protrusion (2). One of the sealing protrusions (2) is connected to a rubber connector (4) with a U-shaped structure. Both ends of the rubber connector (4) are provided with connecting grooves (5) that cooperate with the sealing protrusions (2). A sealing groove (6) that cooperates with the sealing ring (3) is provided in the connecting groove (5).

2. The modularly assembled prefabricated cable trench for pumped storage power stations according to claim 1, characterized in that: The two outer sides of the precast concrete component (1) are provided with a set of vertical toothed grooves (7).

3. The modularly assembled prefabricated cable trench for pumped storage power stations according to claim 1, characterized in that: The precast concrete component (1) has shock-absorbing components (8) at both ends of its lower surface.

4. The modularly assembled prefabricated cable trench for pumped storage power stations according to claim 3, characterized in that: The shock absorption assembly (8) includes a shock absorption base plate (81) and a shock absorption top plate (82), and a U-shaped shock absorption elastic pad (83) and a rubber spring (84) are provided between the shock absorption base plate (81) and the shock absorption top plate (82).

5. The modularly assembled prefabricated cable trench for pumped storage power stations according to claim 1, characterized in that: The precast concrete component (1) and the rubber connector (4) are both provided with a cover plate (9). The upper end face of the precast concrete component (1) and the rubber connector (4) is provided with a slot (10). The cover plate (9) is provided with a strip (91) on both sides. The cover plate (9) is provided with an overlap sealing groove (92) on one side and a matching overlap sealing protrusion (93) on the other side.

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