Novel prefabricated cable trench

Abstract

The utility model discloses a novel prefabricated cable trench, and belongs to the technical field of cable trenches. The novel prefabricated cable trench comprises a U-shaped trench body, a mounting frame and a cable bracket, the mounting frame is vertically fixed on the inner wall of the U-shaped groove body, and the mounting frame comprises a cavity, a vertically downward extension groove and a plurality of extension holes; the cavity is communicated with the outside through the extension groove and the extension hole; one end of the cable bracket is located in the cavity, and the other end of the cable bracket extends out of the cavity through the extension groove; the cavity is used for allowing the cable bracket to move along the extension groove and is provided with a channel for allowing one end of the cable bracket to enter; a bolt is arranged at one end, in the cavity, of the cable bracket and faces the expansion hole; when the cable bracket needs to be fixed, bolts penetrate through the expansion holes to fix the cable bracket. According to the utility model, the problem that the number of the cable brackets and the positions of the cable brackets in the cable trench are usually manufactured in advance and cannot be flexibly changed according to the site construction requirements is effectively solved.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model belongs to the technical field of cable trench, especially relate to a novel prefabricated cable trench. BACKGROUND

[0002] The cable trench is an underground pipeline for laying and replacing power or telecommunication cable facilities, and is also an enclosure structure for laying cable facilities. The conventional booster station and substation cable trench is mostly made of cast-in-situ concrete. The cast-in-situ concrete method must be constructed on site, and requires pre-prepared materials such as cement, sandstone, steel bars, etc. The process is complicated, the construction period is long, and the construction difficulty is great. In addition, the cast-in-situ concrete also requires professional construction teams to work on site, and the formwork quality requirement is high.

[0003] The prefabricated cable trench effectively solves the problems of long construction period and great construction difficulty caused by the cast-in-situ concrete method, and therefore is more and more welcomed by people. As the component manufacturing is completed in a factory, the installation of the prefabricated cable trench at the construction site has a series of advantages such as high efficiency, standardization and safety. However, the position and quantity of the cable bracket in the cable trench are usually made in advance, and cannot be flexibly changed according to the on-site construction requirements. SUMMARY

[0004] The embodiment of the utility model provides a novel prefabricated cable trench to solve the problem that the position and quantity of the cable bracket in the cable trench are usually made in advance and cannot be flexibly changed according to the on-site construction requirements in the prior art.

[0005] The technical scheme adopted by the embodiment of the utility model is a novel prefabricated cable trench, comprising a U-shaped groove body, a mounting frame and a cable bracket.

[0006] The mounting frame is vertically fixed on the inner wall of the U-shaped groove body, and comprises a chamber, a vertically downward extending slot and a plurality of expansion holes. The chamber is communicated with the outside through the extending slot and the expansion holes.

[0007] One end of the cable bracket is in the chamber, and the other end of the cable bracket extends out of the chamber through the extending slot. The chamber allows the cable bracket to move along the extending slot, and a passage is provided for the one end of the cable bracket to enter.

[0008] The one end of the cable bracket in the chamber is further fixed with a bolt, and the bolt faces the expansion hole. When the cable bracket needs to be fixed, the bolt is fixed through the expansion hole.

[0009] Further, the mounting frame comprises a back plate and a pressing plate.

[0010] The pressing plate and the back plate are fixed face to face at a preset distance to form the chamber between the back plate and the pressing plate.

[0011] The extension groove and the expansion hole are arranged on the surface of the pressing plate.

[0012] Further, the back plate is fixed with a back plate bolt on the surface facing the pressing plate, and the pressing plate is provided with a pressing plate mounting hole corresponding to the back plate bolt.

[0013] Further, the cable bracket comprises a fixed end and a supporting end connected with each other, the fixed end is located in the chamber, and the supporting end extends from the fixed end to the outside of the chamber through the extension groove; the bolt is fixed to the fixed end and faces the expansion hole.

[0014] Further, the cable bracket is provided with two bolts, and the two bolts are fixed on the two sides of the fixed end respectively; the surface of the pressing plate is provided with two expansion holes corresponding to the two bolts; and the two bolts of the cable bracket and the corresponding expansion holes are horizontally distributed on the two sides of the extension groove.

[0015] Further, a plurality of arc-shaped grooves are arranged on the end face of the supporting end for supporting the cable.

[0016] Further, the U-shaped groove body comprises a bottom plate and side plates, the side plates are fixed on the two sides of the bottom plate, and a plurality of drainage channels are arranged on the upper surface of the bottom plate in the direction of the side plates.

[0017] Further, the utility model also comprises a top plate, the middle of the top plate is high, the two sides are low, and installation grooves for clamping the top of the U-shaped groove body are arranged on the two sides of the top plate.

[0018] The utility model discloses the fixed end of cable bracket is fixed in the chamber of mounting frame, and the supporting end extends out of the chamber through the extension groove, and the cable bracket is fixed on the mounting frame through the bolt and the corresponding expansion hole, a plurality of expansion holes are evenly arranged on the mounting frame, the cable bracket is placed in the chamber of mounting frame under the corresponding position according to the construction requirement, and is fixed after entering the expansion hole through the extension groove, and because the number and position of expansion hole are flexible and changeable, so the installation position and the number of cable bracket can be set on the spot according to the construction requirement on the spot. ACCURATE DRAWINGS

[0019] Figure 1 It is the structure schematic diagram of prefabricated cable trench provided by the utility model embodiment;

[0020] Figure 2 It is the side surface schematic diagram of prefabricated cable trench provided by the utility model embodiment;

[0021] Figure 3 It is the structure schematic diagram of mounting frame provided by the utility model embodiment;

[0022] Figure 4It is the structural schematic view of the cable bracket provided by the embodiment of the utility model.

[0023] Figure 5 It is the structural view under another fixing mode provided by the embodiment of the utility model.

[0024] The drawings show that: 1, U-shaped groove body; 2, mounting frame; 21, extension groove; 22, expansion hole; 23, chamber; 24, back plate; 241, back plate bolt; 25, pressing plate; 251, pressing plate mounting hole; 3, cable bracket; 31, bolt; 32, fixed end; 33, supporting end; 34, arc-shaped groove; 4, bottom plate; 41, drainage channel; 5, top plate; 51, mounting groove. Specific implementation

[0025] The utility model will be described in detail below in combination with the drawings and specific implementation, but this should not be understood as the range of the above-mentioned subject matter of the utility model is limited to the following examples, and it should be understood that these examples are only used to illustrate the utility model and are not used to limit the range of the utility model. After reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the claims attached to the present application.

[0026] The utility model embodiment provides a novel prefabricated cable trench, as shown in Figure 1 The mounting frame 2 is vertically fixed on the inner wall of the U-shaped groove body 1, and the mounting frame 2 comprises a chamber 23, a vertically downward extension groove 21 and a plurality of expansion holes 22. The chamber 23 is communicated with the outside through the extension groove 21 and the plurality of expansion holes 22, wherein the plurality of expansion holes 22 are evenly arranged on the mounting frame 2 along the direction of the extension groove 21.

[0027] As shown in Figure 2 One end of the cable bracket 3 is located in the chamber 23, and the other end of the cable bracket 3 extends out of the chamber 23 through the extension groove 21. The chamber 23 is used for moving the cable bracket 3 along the extension groove 21, and a passage for the one end of the cable bracket 3 to enter is arranged. In the embodiment, the passage is arranged above the mounting frame 2, and is used for the one end of the cable bracket 3 to enter the chamber 23.

[0028] The one end of the cable bracket 3 located in the chamber 23 is also provided with a bolt 31, and the bolt 31 faces the expansion hole 22. When the cable bracket 3 needs to be fixed, the bolt 31 is fixed through the expansion hole 22.

[0029] The cable bracket 3 in the embodiment can be arranged at a specific installation position on the mounting rack 2 according to the construction requirements on site. After the position and quantity of the cable bracket 3 on the mounting rack 2 are determined, one end of the cable bracket 3 is moved into the cavity 23 through the passage above the mounting rack 2 and along the extension groove 21 downward until the determined installation position is reached. At this time, the end of the cable bracket 3 outside the cavity 23 is pulled outward until the bolt 31 passes through the corresponding expansion hole 22 and cannot be pulled further. Finally, the cable bracket 3 is fixed on the mounting rack 2 by the nut matched with the bolt 31. Through the embodiment, the cable bracket 3 can be installed at the corresponding position according to the required installation position and quantity. Since multiple expansion holes 22 are reserved, the number of optional installation positions of the cable bracket 3 on the mounting rack 2 is determined. Therefore, the installation position and quantity of the cable bracket 3 in the embodiment are more selective and flexible, and the installation process is simple.

[0030] The mounting rack 2 in the embodiment includes a back plate 24 and a pressing plate 25, as shown in Figure 3 The pressing plate 25 is fixed face to face with the back plate 24 at a predetermined distance to form the cavity 23, and the cavity 23 is located between the back plate 24 and the pressing plate 25. The extension groove 21 and the expansion hole 22 are opened on the surface of the pressing plate 25. One side of the back plate 24 facing away from the pressing plate 25 is used to be fixed with the inner wall of the U-shaped groove body 1, and the surface of the back plate 24 facing the pressing plate 25 is fixed with four back plate bolts 241, two of which are fixed above the back plate 24 and the other two are fixed at the bottom of the back plate 24. The back plate bolts 241 located above the back plate 24 are fixed at the positions on both sides of the upper side of the back plate 24 without affecting the entry of one end of the cable bracket 3 into the cavity 23. The back plate bolts 241 located below the back plate 24 are fixed at the positions on both sides of the bottom of the back plate 24 without affecting the movement of the end of the cable bracket 3 along the extension groove 21 into the cavity 23. The pressing plate 25 is provided with pressing plate mounting holes 251 corresponding to the back plate bolts 241, and the fixing of the pressing plate 25 and the back plate 24 is realized by the back plate bolts 241 and the pressing plate mounting holes 251. The effective space of the cavity 23 in the mounting rack 2 can be adjusted by the back plate 24 and the pressing plate 25.

[0031] In the embodiment, the bottom of the back plate 24 is further provided with a bending part horizontally bent towards the pressing plate 25. The upper surface of the bending part abuts against the bottom surface of the pressing plate 25 to support the pressing plate 25 and effectively prevent the pressing plate 25 from falling due to gravity.

[0032] As shown in Figure 4As shown, the cable tray 3 includes a fixed end 32 and a supporting end 33 connected to each other. The fixed end 32 is located in the chamber 23, and bolts 31 are fixed to the fixed end 32, facing the expansion hole 22. In this embodiment, the cable tray 3 has two bolts 31, which are respectively fixed on both sides of the fixed end 32. The surface of the pressure plate 25 has two expansion holes 22 corresponding to the two bolts 31. The two bolts 31 and the corresponding expansion holes 22 of the cable tray 3 are horizontally distributed on both sides of the extension groove 21. In addition, the supporting end 33 of the cable tray 3 extends outward from the center of the fixed end 32 along the direction of the extension groove 21 to the outside of the chamber 23.

[0033] By setting bolts 31 on both sides of the fixed end 32, the stability of the cable tray 3 installed on the mounting frame 2 can be further enhanced, thereby ensuring that the cable tray 3 maintains a high degree of stability.

[0034] In addition, such as Figure 5 As shown, after the fixed end 32 of the cable tray 3 enters the chamber 23 and the bolt 31 is aligned with the expansion hole 22, adjust the distance between the compression back plate 24 and the pressure plate 25 until the distance between the back plate 24 and the pressure plate 25 can only accommodate the fixed end 32. Finally, use the back plate bolts 24 on the back plate 24 for fixing. When using this installation method, it is not necessary to fix the bolt 31 again.

[0035] In this embodiment, the cable tray 3 has multiple arc-shaped grooves 34 on its supporting end 33 for supporting the cable, and a protrusion is provided at the end of the extended end of the supporting end 33. The arc-shaped grooves 24 and the protrusion cooperate with each other to effectively limit the cable placed above the supporting end 33, thereby achieving more stable and reliable support for the cable.

[0036] In this embodiment, the U-shaped tank 1 includes a bottom plate 4 and side plates. The side plates are vertically fixed to both sides of the bottom plate 4. Multiple drainage channels 41 are provided on the upper surface of the bottom plate 4. When there is too much water in the tank, the multiple drainage channels 41 can drain the water in time, thereby ensuring the dryness of the environment inside the tank.

[0037] A top plate 5 is also provided on the top of the U-shaped trough 1. The top plate 5 is higher in the middle and lower on both sides, which makes it less likely for water to accumulate at the top of the cable trench. At the same time, mounting grooves 51 are provided on both sides of the top plate 5. These mounting grooves 51 can be engaged with the top of the U-shaped trough 1, thereby making the connection between the top plate 5 and the U-shaped trough 1 more secure and reliable.

Claims

1. A new prefabricated cable trench, characterized in that, Including U type groove body (1), mounting frame (2) and cable bracket (3); The mounting frame (2) is vertically fixed on the inner wall of the U type groove body (1), and the mounting frame (2) comprises a chamber (23), a vertically downward extending slot (21) and a plurality of expansion holes (22); the chamber (23) is communicated with the outside through the extending slot (21) and the plurality of expansion holes (22); One end of the cable bracket (3) is located in the chamber (23), and the other end of the cable bracket (3) extends out of the chamber (23) through the extending slot (21); the chamber (23) is used for moving the cable bracket (3) along the extending slot (21), and a passage is formed for the one end of the cable bracket (3) to enter; The one end of the cable bracket (3) located in the chamber (23) is provided with a bolt (31), and the bolt (31) faces the expansion hole (22); when the cable bracket (3) needs to be fixed, the bolt (31) is fixed by penetrating through the expansion hole (22).

2. The novel pre-fabricated cable trench as claimed in claim 1, wherein, The mounting frame (2) comprises a back plate (24) and a pressing plate (25); The pressing plate (25) is fixed face to face with the back plate (24) at a preset distance, forming the chamber (23) between the back plate (24) and the pressing plate (25); The extending slot (21) and the expansion hole (22) are formed on the surface of the pressing plate (25).

3. The novel pre-fabricated cable trench as claimed in claim 2, wherein, The surface of the back plate (24) facing the pressing plate (25) is provided with a back plate bolt (241); The pressing plate (25) is provided with a pressing plate mounting hole (251) corresponding to the back plate bolt (241).

4. The novel pre-fabricated cable trench as claimed in claim 2, wherein, The cable bracket (3) comprises a fixed end (32) and a supporting end (33) connected to each other; The fixed end (32) is located in the chamber (23), and the supporting end (33) extends out of the chamber (23) along the extending slot (21) from the fixed end (32); The bolt (31) is fixed to the fixed end (32) and faces the expansion hole (22).

5. The novel pre-fabricated cable trench as claimed in claim 4, wherein, The cable bracket (3) is provided with two bolts (31), and the two bolts (31) are fixed on the two sides of the fixed end (32); the surface of the pressing plate (25) is provided with two expansion holes (22) corresponding to the two bolts (31); the two bolts (31) and the corresponding expansion holes (22) of the cable bracket (3) are horizontally distributed on the two sides of the extending slot (21).

6. The novel pre-fabricated cable trench as claimed in claim 4, wherein, A plurality of arc grooves (34) are formed on the end surface of the supporting end (33) for supporting the cable.

7. The novel pre-fabricated cable trench as claimed in claim 1, wherein, The U type groove body (1) comprises a bottom plate (4) and a side plate, the side plate is fixed on both sides of the bottom plate (4), and a plurality of drainage channels (41) are formed on the upper surface of the bottom plate along the direction of the side plate.

8. The new pre-fabricated cable trench as claimed in claim 1, wherein, Further comprising a top plate (5), the middle of the top plate (5) is high and the two sides are low, and mounting grooves (51) are formed on both sides of the top plate (5) for clamping the top of the U type groove body (1).

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