Anti-soaking prefabricated concrete cable trench

Abstract

The utility model discloses an anti-soaking precast concrete cable trench, belongs to the technical field of electric power engineering, and provides a precast concrete cable trench capable of effectively improving wiring regularity, the precast concrete cable trench comprises a reversing body and a straight row body which can be matched with each other, the inner walls of the reversing body and the straight row body can be clamped with wiring bridges, and the inner walls of the reversing body and the straight row body can be clamped with the wiring bridges. The wiring bridge is movably connected with a cable bunching body, the cable bunching body comprises a fastener and a compression bolt, the compression bolt is suitable for penetrating through the wiring bridge, the part, penetrating through the wiring bridge, of the compression bolt is matched with the fastener, and the fastener is suitable for forcing the compression bolt to compress a cable on the wiring bridge. The wiring bridge is provided with the wire bunching body structure with the position capable of being adjusted, cables on the wiring bridge can be fixed, displacement and swinging of the cables in the wiring process and even after wiring are effectively avoided, the cables in a cable trench are more orderly and regular, and the orderly and regular state can be kept for a long time.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electric power engineering, in particular to a prefabricated concrete cable trench capable of preventing wetting. BACKGROUND

[0002] In addition to erecting cables in the air, cables are also pre-buried on the ground. Traditional pre-buried cables are directly buried in soil bases and are easy to be corroded and exposed due to long-time wind and rain. Therefore, in the prior art, a hard cable trench is usually made by pouring concrete, and a support structure for fixing cables is arranged in the cable trench. However, the existing support structure for the cable trench lacks a constraint structure, and when wiring, the cables are easy to move and swing, resulting in cable mispositioning and overlapping. The original wiring plan is difficult to realize in actual wiring, and with the passage of time, the cables are pressed and staggered due to thermal expansion and cold contraction, which further increases the degree of disorder. SUMMARY

[0003] The application aims to provide a prefabricated concrete cable trench capable of effectively improving wiring regularity.

[0004] To achieve the above object, the application provides a prefabricated concrete cable trench capable of preventing wetting, which comprises a reversing body and a straight body that can cooperate with each other, the inner walls of the reversing body and the straight body are both adapted to be connected with a wiring bridge, the wiring bridge is movably connected with a wire binding body, the wire binding body comprises a fastener and a pressing bolt, the pressing bolt is adapted to pass through the wiring bridge, the part of the pressing bolt passing through the wiring bridge is matched with the fastener, and the fastener is adapted to force the pressing bolt to press the cable on the wiring bridge, so as to effectively inhibit the movement and swing of the cable.

[0005] As a preferred embodiment, the wiring bridge is provided with a sliding groove penetrating the upper and lower surfaces, the pressing bolt comprises a stud, the upper end of the stud is fixedly connected with a pressing umbrella adapted to directly contact the cable, and the fastener comprises an outer hexagonal nut, the stud is screwed with the outer hexagonal nut after passing through the sliding groove, and a strong constraint effect can be provided.

[0006] As a preferred embodiment, the wire binding body further comprises a rotation-stopping buckle, the main body part of the rotation-stopping buckle is a flat plate adapted to tightly adhere to the lower surface of the wiring bridge, the side edge of the rotation-stopping buckle is provided with an upwardly extending baffle adapted to tightly adhere to the side surface of the wiring bridge, and the rotation-stopping buckle is adapted to be sleeved on the outside of the stud and located between the outer hexagonal nut and the wiring bridge, so as to inhibit the rotation of the outer hexagonal nut to a certain extent.

[0007] As a preferred, the central opening of the rotation stopper is provided with a through hole, which is suitable for the stud to pass through, and the fastener further comprises a gasket, which is also sleeved outside the stud, instead of the outer hexagonal nut contacting with the rotation stopper, further preventing the outer hexagonal nut from loosening.

[0008] As a preferred, the side surface of the pressing umbrella opposite to the wiring bridge is a wire groove, which is suitable for being attached to the outer surface of the cable, and the wire groove has two symmetrical about the axis of the stud, and the stud and the pressing umbrella further have a sliding column, which is suitable for cooperating with the sliding groove to form a sliding pair, so that the fixed position of the cable on the wiring bridge can be flexibly adjusted.

[0009] As a preferred, the wiring bridge is made of a square tube, the square tube is horizontal, the two ends of the bottom wall are bent upward to form reinforcing plates, the two ends of the side wall of the square tube are limiting plates, the two ends of the wiring bridge are surrounded by the reinforcing plates and the limiting plates to form a bayonet, and the inner wall of the reversing body and the straight row body is fixedly connected with a support frame, which is suitable for fitting the bayonet, and the stability and the convenience of disassembly are considered.

[0010] As a preferred, the sliding grooves of the top wall and the bottom wall of the wiring bridge are single and continuous, the extension direction of the sliding groove is consistent with the length direction of the wiring bridge, and a large enough position adjustment space is reserved.

[0011] As a preferred, one end of the straight row body has an embedded frame, and the other end is provided with an embedded groove, the inner wall of the embedded groove is suitable for being coated with sealing glue, the embedded frame of one straight row body is suitable for fitting the embedded groove of another straight row body, the side end face of the reversing body is provided with a fitting groove, the inner wall of the fitting groove is also suitable for being coated with sealing glue, and the fitting groove is suitable for fitting the embedded frame; the top of the side wall of the reversing body is provided with a first cover plate groove, and the top of the side wall of the straight row body is provided with a second cover plate groove, which is used to constrain and shield the cover plate component inside the cable trench.

[0012] Compared with the prior art, the application has the following beneficial effects:

[0013] (1) By arranging the wire binding body structure capable of adjusting the position on the wiring bridge, the cable on the wiring bridge can be fixed, the cable in the cable trench is more orderly and regular, and this orderly and regular state can be maintained for a long time, and the cable can be effectively prevented from moving and swinging during the wiring process or even after the wiring is completed;

[0014] (2) By arranging the buckle structure at the two ends of the wiring bridge, the support frame of the cable trench inner wall is clamped, the stability and the convenience of disassembly of the wiring bridge can be effectively considered, and the reversing body and the straight row body constituting the cable trench base can also be easily laid and removed, which provides convenience for subsequent removal and recovery;

[0015] (3) and the commutative body 1 and straight row body 2 end of the embeddable structure, cooperate with sealant can achieve good anti-wetting effect, overhead wiring bridge can effectively reduce the probability of corrosive liquid and cable contact, the cable can provide better protection effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 For the anti-wetting prefabricated concrete cable trench of all components of the fitting state of the structure diagram.

[0017] Figure 2 For the anti-wetting prefabricated concrete cable trench of the cable binding part through the layout of the wiring bridge in the straight row body.

[0018] Figure 3 For the anti-wetting prefabricated concrete cable trench of the cable binding part and the wiring bridge of the structure diagram.

[0019] Figure 4 For the anti-wetting prefabricated concrete cable trench of the first structure diagram of the cable binding part.

[0020] Figure 5 For the anti-wetting prefabricated concrete cable trench of the second structure diagram of the cable binding part.

[0021] Figure 6 For the anti-wetting prefabricated concrete cable trench of the structure diagram of the compression bolt.

[0022] Figure 7 For the anti-wetting prefabricated concrete cable trench of the structure diagram of the stop buckle.

[0023] Figure 8 For the anti-wetting prefabricated concrete cable trench of the structure diagram of the wiring bridge.

[0024] Figure 9 For the anti-wetting prefabricated concrete cable trench of the structure diagram of the wiring bridge.

[0025] Figure 10 For the anti-wetting prefabricated concrete cable trench of the first structure diagram of the straight row body.

[0026] Figure 11 For the anti-wetting prefabricated concrete cable trench of the second structure diagram of the straight row body.

[0027] Figure 12 For the anti-wetting prefabricated concrete cable trench of the structure diagram of the commutative body.

[0028] In the figure: 1, reversing body; 101, fitting groove; 102, first cover plate groove; 2, straight row body; 201, inlay frame; 202, inlay groove; 203, support frame; 204, second cover plate groove; 3, wiring bridge; 301, sliding groove; 302, bayonet; 303, reinforcing plate; 304, limiting plate; 4, wire binding body; 410, fastener; 411, outer hexagonal nut; 412, gasket; 420, rotation-stopping buckle; 421, through hole; 422, baffle; 430, compression bolt; 431, stud; 432, sliding column; 433, compression umbrella; 434, wire slot. DETAILED DESCRIPTION

[0029] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that, under the premise of no conflict, the following described embodiments or technical features can be combined in any manner to form new embodiments.

[0030] In the description of the present application, it should be noted that, for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0031] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to describe a particular order or sequence.

[0032] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0033] As Figures 1-12The illustrated anti-wetting prefabricated concrete cable trench comprises a reversing body 1 and a straight body 2 that can be matched with each other. The reversing body 1 is not only open at the top but also has multiple open ends on the side surface. The straight body 2 is only open at both ends and the top. One end of the straight body 2 is provided with an embedded frame 201, and the other end is provided with an embedded groove 202. The embedded frame 201 and the embedded groove 202 are the same shape, which is C-shaped with the opening facing upward in this embodiment. The inner wall of the embedded groove 202 needs to be coated with sealant. The embedded frame 201 of one straight body 2 can be matched with the embedded groove 202 of another straight body 2, and the embedded frame 201 of another straight body 2 can be matched with the embedded groove 202 of the next straight body 2. The side end surface of the reversing body 1 is also provided with a matching groove 101 that is the same size and shape as the embedded groove 202. The inner wall of the matching groove 101 also needs to be coated with sealant. The matching groove 101 can also be matched with the embedded frame 201 of the straight body 2. Since the usage amount of the reversing body 1 is much less than that of the straight body 2, and the reversing bodies 1 are not connected with each other, the reversing body 1 itself does not need to have a structure that can be matched with the matching groove 101. Instead, it needs to be matched with the cover plate of the cable trench, so a first cover plate groove 102 is formed at the top of the side wall of the reversing body 1, and a second cover plate groove 204 is formed at the top of the side wall of the straight body 2, which can provide stable placement constraints for the cover plate of the cable trench.

[0034] The inner walls of the reversing body 1 and the straight body 2 can be clamped with a wiring bridge 3 for providing lifting force to the cables inside the reversing body 1 and the straight body 2. The wiring bridge 3 is made of a square tube, which is horizontally placed with the upper and lower surfaces being horizontal, the side walls being vertical, and the bottom wall being bent upward at both ends to form reinforcing plates 303. The side edges of the reinforcing plates 303 are close to the inner walls of the square tube, and the two ends of the side walls of the square tube define limiting plates 304. The two ends of the wiring bridge 3 are surrounded by the outer side surface of the reinforcing plates 303 and the inner side surface of the limiting plates 304 to form a bayonet 302. The inner walls of the reversing body 1 and the straight body 2 are fixedly connected with support frames 203, which are right-angled triangles with one right angle being horizontal and the other right angle being parallel to the inner walls of the reversing body 1 or the straight body 2. The support frames 203 appear in pairs, and the two support frames 203 in each pair are located on opposite inner walls of the reversing body 1 or the straight body 2 and correspond in position on the two inner walls. In this way, the bayonet 302 at both ends of the wiring bridge 3 can be matched with the two support frames 203 at the same time. The support frames 203 are located between the limiting plates 304, so the wiring bridge 3 cannot move left and right or forward and backward, and maintains stable matching with the support frames 203 under the pressure of the weight of the cables.

[0035] The wiring bridge 3 is movably connected with a cable binding body 4, the cable binding body 4 at least comprises a fastener 410 and a pressing bolt 430, the pressing bolt 430 is used to pass through the wiring bridge 3, and the part of the pressing bolt 430 passing through the wiring bridge 3 is matched with the fastener 410, in order to ensure that the pressing bolt 430 can pass through, the wiring bridge 3 is also provided with a sliding groove 301 penetrating the upper and lower surfaces, since the wiring bridge 3 is made of square steel, the sliding groove 301 is divided into two upper and lower sliding grooves, and the sliding grooves 301 of the top wall and the bottom wall of the wiring bridge 3 are single and continuous, the extension direction of the sliding groove 301 is consistent with the length direction of the wiring bridge 3, and the specific structure of the pressing bolt 430 comprises a stud 431, the upper end of the stud 431 is fixedly connected with a pressing umbrella 433, which is used to directly contact the cable, in fact, the side of the pressing umbrella 433 opposite to the wiring bridge 3 is a wire slot 434, which is just matched with the outer surface of the cable, so that the pressing stress can be effectively dispersed, and the depth of the indentation on the surface of the cable is reduced, in order to ensure that the pressing umbrella 433 is balanced when pressing, the wire slot 434 is also provided with two, which are symmetric about the axis of the stud 431, so that one cable binding body 4 can bind two cables at the same time.

[0036] The stud 431 and the pressing umbrella 433 also have a sliding column 432 therebetween, which is used to cooperate with the sliding groove 301 to form a sliding pair, so as to flexibly adjust the fixed position of the cable on the wiring bridge 3, although the sliding column 432 in the drawing of the present example is cylindrical, but in fact it can also be made into a quadrangular prism, which can also be well matched with the sliding groove 301, and the quadrangular prism can better constrain the direction of the pressing umbrella 433, the fastener 410 comprises an outer hexagonal nut 411, the stud 431 is screwed with the outer hexagonal nut 411 after passing through the sliding groove 301, since the outer hexagonal nut 411 can provide strong downward force to the stud 431 during screwing, so the fastener 410 can force the pressing bolt 430 to press the cable on the wiring bridge 3, so as to avoid the movement of the cable in the cable trench.

[0037] Although the thread cooperation between the outer hexagonal nut 411 and the stud 431 has self-locking ability, it is still possible to loosen over time, so the wire binding body 4 also includes a hard rotation-stopping buckle 420, which can be made of corrosion-resistant alloy or hard plastic. The main part of the rotation-stopping buckle 420 is a flat plate, and the upper surface is tightly attached to the lower surface of the wiring bridge 3. The side edges of the rotation-stopping buckle 420 have upwardly extending baffles 422 that can be tightly attached to the side surfaces of the wiring bridge 3. There are usually two baffles 422, located on the opposite side edges of the main part of the rotation-stopping buckle 420. The rotation-stopping buckle 420 is also sleeved outside the stud 431 and located between the outer hexagonal nut 411 and the wiring bridge 3. A through hole 421 is formed in the center of the rotation-stopping buckle 420 for the stud 431 or the slide rod 432 to pass through. Since the compression bolt 430 is constrained by the reaction force of the cable, the factor that affects the self-locking stability of the outer hexagonal nut 411 is vibration. Therefore, the fastener 410 also includes a gasket 412 made of rubber material, which is also sleeved outside the stud 431 and can effectively absorb vibration. At the same time, the gasket 412 replaces the contact between the outer hexagonal nut 411 and the rotation-stopping buckle 420, avoiding direct contact between the outer hexagonal nut 411 and the rotation-stopping buckle 420, and effectively preventing the outer hexagonal nut 411 from rotating in the loosening direction.

[0038] Working principle: When wiring, first dig a wiring channel in the soil foundation according to the wiring design drawing, then use the reversing body 1, the straight body 2, and the sealing glue to lay the base of the cable trench in the wiring channel, then install the wiring bridge 3 in the reversing body 1 and the straight body 2. The first batch of installed wiring bridges 3 should be first engaged with the lower support frame 203 to form the first layer of wiring bridges 3. Then lay a group of two cables on the first layer of wiring bridges 3, and then use the wire binding body 4 to fix the cables on the wiring bridges 3 at appropriate positions. In this way, when the cables are pulled, they will not shift, misalign, or overlap. The cables can also be pulled straighter to reduce cable usage. After the first layer of cables is laid and fixed, the wiring bridges 3 can be engaged on higher support frames 203 to form the second layer of wiring bridges 3, and the wiring can continue. According to the above method, multiple layers of cables can be laid, and each layer of cables does not interfere with each other, and the relative positions can be kept stable. After the cable trench is laid, the cover plate can be added to the reversing body 1 and the straight body 2 to achieve dust and water prevention from the top. The bottom of the cable trench is difficult for water in the soil foundation to soak into the inside of the cable trench because the sealing glue between the reversing body 1 and the straight body 2 and the adjacent straight bodies 2 has solidified. Moreover, the cables in the cable trench are suspended by the wiring bridges 3, so even if some water accumulates in the cable trench, it is difficult to affect the cables.

[0039] The foregoing describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A precast concrete wetproofed cable trench, characterized by: The application relates to a cable routing device, which comprises a commutating body (1) and a straight routing body (2) that can cooperate with each other, the inner walls of the commutating body (1) and the straight routing body (2) are clamped with a wiring bridge (3), the wiring bridge (3) is movably connected with a cable binding body (4), the cable binding body (4) comprises a fastener (410) and a compression bolt (430), the compression bolt (430) is adapted to pass through the wiring bridge (3), the part of the compression bolt (430) passing through the wiring bridge (3) is matched with the fastener (410), and the fastener (410) is adapted to force the compression bolt (430) to compress a cable on the wiring bridge (3).

2. The precast concrete wetproofed raceway of claim 1, wherein: The wiring bridge (3) is provided with a sliding groove (301) penetrating the upper and lower surfaces, the compression bolt (430) comprises a stud (431), the upper end of the stud (431) is fixedly connected with a compression umbrella (433) adapted to directly contact the cable, and the fastener (410) comprises an outer hexagonal nut (411) that is screwed with the stud (431) after the stud (431) passes through the sliding groove (301).

3. A precast concrete wetproofed cable trench as claimed in claim 2 wherein: The cable binding body (4) further comprises a rotation-stopping buckle (420), the main body part of the rotation-stopping buckle (420) is a flat plate adapted to tightly adhere to the lower surface of the wiring bridge (3), the side edge of the rotation-stopping buckle (420) is provided with an upwardly-extending baffle (422) adapted to tightly adhere to the side surface of the wiring bridge (3), and the rotation-stopping buckle (420) is adapted to be sleeved outside the stud (431) and located between the outer hexagonal nut (411) and the wiring bridge (3).

4. A precast concrete wetproofed cable trench as claimed in claim 3 wherein: A through hole (421) is formed in the center of the rotation-stopping buckle (420) and adapted to pass through the stud (431), and the fastener (410) further comprises a gasket (412) that is also sleeved outside the stud (431) and contacts the rotation-stopping buckle (420) instead of the outer hexagonal nut (411).

5. The precast concrete wetproofed raceway of claim 2, wherein: The side surface of the compression umbrella (433) opposite to the wiring bridge (3) is a wire slot (434) adapted to be in close contact with the outer surface of the cable, the wire slot (434) is provided with two wire slots (434) that are symmetrical about the axis of the stud (431), and the stud (431) and the compression umbrella (433) are further provided with a sliding column (432) adapted to cooperate with the sliding groove (301) to form a sliding pair.

6. A precast concrete wet-proofing cable trench according to any one of claims 1 to 5, wherein: The wiring bridge (3) is made of a square tube, the square tube is horizontal, the two ends of the bottom wall are upwardly bent to form reinforcing plates (303), the two ends of the side wall of the square tube are limiting plates (304), the two ends of the wiring bridge (3) are surrounded by the reinforcing plates (303) and the limiting plates (304) to form a bayonet (302), and the inner walls of the commutating body (1) and the straight routing body (2) are fixedly connected with supporting frames (203) adapted to be matched with the bayonet (302).

7. A precast concrete wetproofed cable trench as claimed in claim 6 wherein: The sliding grooves (301) of the top wall and the bottom wall of the wiring bridge (3) are single and continuous, and the extension direction of the sliding groove (301) is consistent with the length direction of the wiring bridge (3).

8. A precast concrete wet-proofing cable trench according to any one of claims 1 to 5, wherein: One end of the straight row body (2) is provided with an embedded frame (201), and the other end is provided with an embedded groove (202). The inner wall of the embedded groove (202) is suitable for being coated with sealing glue. The embedded frame (201) of one straight row body (2) is suitable for being matched with the embedded groove (202) of another straight row body (2). The side end face of the reversing body (1) is provided with a matching groove (101). The inner wall of the matching groove (101) is also suitable for being coated with sealing glue. The matching groove (101) is suitable for being matched with the embedded frame (201). The top of the side wall of the reversing body (1) is provided with a first cover plate groove (102), and the top of the side wall of the straight row body (2) is provided with a second cover plate groove (204).

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