Prefabricated cable trench
Through the design of prefabricated assembled cable trench, the use of fire-resistant tempered glass cover plate and screw nut connections, the problem of sharing cable trench is solved, efficient utilization and maintenance of cable trench is achieved, and the workload of repeated construction is reduced.
Patent Information
- Application Number
- CN202421634273.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In conventional substations of State Grid, due to fire protection specifications, primary cables and secondary cables or communication cables cannot share cable trenches, resulting in the need to set up separate cable trenches, which increases the workload of repeated excavation and backfill.
Prefabricated assembled cable trench is used, and the primary cable, secondary cable and communication optical cable are separated in the same cable trench using fire-resistant tempered glass cover plate, and connected and fixed with the nut through screws. Combined with structures such as flexible neoprene rubber plates and embedded iron parts, ensuring stable connections and reducing shedding and wear.
The primary cable, secondary cable and communication optical cable share the same cable trench, saving construction costs, reducing repeated excavation and backfill work, and improving the utilization rate and maintenance efficiency of cable trenches.
Smart Images
Figure CN223167950U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cable trenches, and specifically relates to a prefabricated and assembled cable trench. Background Technique
[0002] A cable trench is an underground pipeline used for laying and replacing power or telecommunications cable facilities, and it is also an enclosing structure for the laid cable facilities.
[0003] In recent years, with the acceleration of the urbanization process in China, the urban power supply transmission method has gradually changed from traditional overhead lines to underground cable laying for transmission. By using the method of underground cable laying for power transmission, the impact on urban ground construction can be reduced, and the ground space is not occupied. The main purpose of a cable trench is to be an enclosing structure for laying and replacing power or telecommunications cable facilities, and it is widely used in power substations, municipal engineering, etc.
[0004] In the conventional substations of the State Grid, due to the requirements of fire prevention codes, it is not allowed for primary cables and secondary cables or communication cables to share the same cable trench at one time. Therefore, it is often necessary to set up another cable trench for sub-trench treatment, which increases the workload of repeated excavation and backfilling.
[0005] Therefore, the utility model provides a prefabricated and assembled cable trench. Summary of the Utility Model
[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background technique.
[0007] The technical solution adopted by the utility model to solve its technical problems is as follows: A prefabricated and assembled cable trench of the utility model includes a bottom plate; two cable trench sidewalls are installed on the top of the bottom plate; the two cable trench sidewalls are installed on both sides of the bottom plate; a screw rod is installed on the sidewall of the bottom plate; the middle part of the screw rod penetrates through the sidewall of the cable trench sidewall; two nuts are threadedly connected to the middle part of the screw rod; the two nuts are arranged oppositely; a fireproof tempered glass cover plate is installed on the sidewall of the two cable trench sidewalls; the fireproof tempered glass cover plate is arranged at one end close to the bottom plate; a cable support is installed in the middle of the cable trench sidewall; a placement groove is opened at the top of the cable trench sidewall; the placement groove is opened on one side of the top of the cable trench sidewall; a cable trench cover plate is installed on the top of the two cable trench sidewalls; the cable trench cover plate is arranged at the position corresponding to the two placement grooves; through the above structure, the screw rod and the nut are connected and fixed, which can make the main structure firmly connected, not prone to problems of sliding and falling off, and reduce the damage to the cable caused by the falling off of the main structure. Through the fireproof tempered glass cover plate, it can effectively realize the sharing of the same cable trench by primary cables, secondary cables and communication optical cables, and there is no need to separately set up another cable trench for secondary cables and communication optical cables.
[0008] Preferably, angle steel is fixedly connected to the side wall of the placement groove; the angle steel is L-shaped; a second embedded iron piece is fixedly connected to the bottom of the angle steel; the second embedded iron piece is inclined; the second embedded iron piece is arranged inside the cable trench wall; a flexible neoprene rubber plate is fixedly connected to the middle of the angle steel; through the above structure, the second embedded iron piece can stably fix the angle steel in the cable trench wall, reducing the problem of the angle steel falling off during long-term use.
[0009] Preferably, a plurality of first embedded iron pieces are fixedly connected to the side wall of the cable support; the first embedded iron pieces are arranged inside the cable trench wall; through the above structure, the first embedded iron pieces can provide a more stable support point for the cable support, effectively reducing the problems of deformation or collapse of the cable support due to bearing the weight of the cable or external forces.
[0010] Preferably, multiple groups of rubber pads are fixedly connected to the top of the fireproof tempered glass cover plate; every two rubber pads form a group; a support rod is fixedly connected to the top of the rubber pad; the support rod is inclined; steel wires are fixedly connected to the ends of the two support rods; through the above structure, multiple steel wires can effectively disperse and absorb the impact force generated when the cable drops, effectively slowing down the falling speed of the cable.
[0011] Preferably, a plurality of support frames are fixedly connected to the top of the fireproof tempered glass cover plate; the plurality of support frames are arranged in an inverted V shape; the top of the support frame is fixedly connected to the middle of the steel wire; through the above structure, the support frame can provide a stable support point for the steel wire, making the steel wire more stable and reliable, effectively reducing the problems of deformation or relaxation of the steel wire due to the impact of the cable and bearing the load.
[0012] Preferably, both sides of the bottom plate are convexly arranged; the cable trench wall is arranged inside the convex part on both sides of the bottom plate; through the above structure, the convex arrangement of both sides of the bottom plate can effectively increase the contact area between the cable trench wall and the bottom plate.
[0013] The beneficial effects of the present utility model are as follows:
[0014] 1. For the prefabricated and assembled cable trench of the present utility model, through the fireproof tempered glass cover plate, it can effectively realize the sharing of the same cable trench by primary cables, secondary cables and communication optical cables, without separately setting cable trenches for secondary cables and communication optical cables, effectively saving the construction cost of some trenches and pipelines, and reducing the workload of repeated excavation and backfilling.
[0015] 2. For the prefabricated and assembled cable trench of the present utility model, through the second embedded iron piece, the angle steel can be stably fixed in the cable trench wall, reducing the problem of the angle steel falling off during long-term use, and through the flexible neoprene rubber plate, the direct contact and collision between the cable trench cover plate and the cable trench wall can be reduced. Description of the Drawings
[0016] The present utility model will be further described below in conjunction with the accompanying drawings.
[0017] Figure 1 is a perspective view of a prefabricated and assembled cable trench in the present utility model;
[0018] Figure 2 is a schematic structural view of a flexible chloroprene rubber sheet in the present utility model;
[0019] Figure 3 is a schematic structural view of a first embedded iron part in the present utility model;
[0020] Figure 4 is a schematic structural view of a rubber pad in the present utility model;
[0021] Figure 5 is a schematic structural view of a support frame in the present utility model;
[0022] In the figure: 1, fireproof tempered glass cover plate; 12, rubber pad; 13, support rod; 14, steel wire rope; 2, cable support; 21, support frame; 3, first embedded iron part; 4, cable trench wall; 5, cable trench cover plate; 51, placement groove; 6, bottom plate; 7, screw; 8, nut; 9, second embedded iron part; 10, angle steel; 11, flexible chloroprene rubber sheet. Specific embodiments
[0023] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] Such as Figures 1 to 4As shown in the figure, a prefabricated and assembled cable trench according to an embodiment of the present utility model includes a bottom plate 6; two cable trench side walls 4 are installed on the top of the bottom plate 6; the two cable trench side walls 4 are installed on both sides of the bottom plate 6; a screw rod 7 is installed on the side wall of the bottom plate 6; the middle part of the screw rod 7 penetrates through the side wall of the cable trench side wall 4; two nuts 8 are threadedly connected to the middle part of the screw rod 7; the two nuts 8 are arranged oppositely; a fireproof tempered glass cover plate 1 is installed on the side walls of the two cable trench side walls 4; the fireproof tempered glass cover plate 1 is arranged at one end close to the bottom plate 6; a cable support 2 is installed in the middle of the cable trench side wall 4; a placement groove 51 is opened at the top of the cable trench side wall 4; the placement groove 51 is opened on one side of the top of the cable trench side wall 4; two cable trench cover plates 5 are installed on the top of the two cable trench side walls 4; the cable trench cover plates 5 are arranged at positions corresponding to the two placement grooves 51; during operation, the cable trench main body includes the bottom plate 6, the cable trench side walls 4, and the cable trench cover plates 5. The main body structure is prefabricated by a concrete structure manufacturer. The accessory connection components include the fireproof tempered glass cover plate 1 and the cable support 2. The two cable trench side walls 4 are respectively arranged on both sides of the bottom plate 6. By turning the two nuts 8 to move towards the middle at the ends of the screw rod 7, the cable trench side walls 4 are connected and fixed to the bottom plate 6. A groove is opened on the inner side of the cable trench side wall 4, and the fireproof tempered glass cover plate 1 is embedded and divided into upper and lower layers by the fireproof tempered glass cover plate 1. The cable support 2 is installed on the side wall of the cable trench side wall 4 to lay the primary cable. The secondary cable and communication optical cable are laid in the lower layer of the fireproof tempered glass cover plate 1. After the cable laying is completed, the cable trench cover plates 5 are installed on the top of the two cable trench side walls 4, thus completing the cable laying work. By connecting and fixing with the screw rod 7 and the nuts 8, the main structure can be firmly connected, and problems of sliding and falling are not likely to occur, reducing the damage to the cable caused by the falling off of the main structure. Moreover, the installation and disassembly processes are convenient and fast. The cable trench can be easily replaced with new ones and reused. Through the fireproof tempered glass cover plate 1, the primary cable, secondary cable, and communication optical cable can effectively share the same cable trench, without the need to separately set up cable trenches for the secondary cable and communication optical cable, effectively saving the construction cost of some trenches and pipelines, reducing the workload of repeated excavation and backfilling, enabling the primary cable, secondary cable, and communication optical cable to not interfere with each other in the cable trench, effectively improving the utilization rate of the cable trench, and during the later operation and maintenance process of the substation, the cable trench cover plates 5 can be opened to directly observe the operation of the bottom cables through the fireproof tempered glass cover plate 1, being able to timely detect abnormal conditions without directly contacting the cables, reducing the cumbersome disassembly work of opening the cable trench, and effectively improving the cable maintenance efficiency.
[0025] As Figure 2As shown, the side wall of the placement groove 51 is fixed with an angle steel 10; the angle steel 10 is set in an L shape; the bottom of the angle steel 10 is fixed with a second embedded iron piece 9; the second embedded iron piece 9 is set obliquely; the second embedded iron piece 9 is set inside the cable trench wall 4; the middle of the angle steel 10 is fixed with a flexible neoprene rubber sheet 11; when working, the second embedded iron piece 9 is buried near the top position of the cable trench wall 4, and the second embedded iron piece 9 is fixed to the angle steel 10 to fix the angle steel 10 in the placement groove 51 position, and the flexible neoprene rubber sheet 11 is glued to the angle steel 10, and then the cable trench cover 5 is placed on the top of the two cable trench walls 4, and the cable trench wall 4 and the cable trench are connected by the flexible neoprene rubber sheet 11. The cover plate 5 makes flexible contact, and the second embedded iron piece 9 can make the angle steel 10 stably fixed in the cable trench wall 4, reducing the problem of the angle steel 10 falling off during long-term use, and the flexible neoprene rubber plate 11 can reduce the collision caused by direct contact between the cable trench cover plate 5 and the cable trench wall 4. The good elasticity and buffering of the flexible neoprene rubber plate 11 can effectively reduce the vibration and impact force between the cable trench cover plate 5 and the cable trench wall 4, and reduce the wear problem caused by friction and collision between the cable trench cover plate 5 and the cable trench wall 4, thereby effectively extending the service life of the cable trench cover plate 5, and can effectively improve the stability of the cable trench cover plate 5, and reduce displacement or warping due to external force.
[0026] like Figure 1 and Figure 3 As shown, the side wall of the cable holder 2 is fixedly connected with a plurality of first embedded iron pieces 3; the first embedded iron pieces 3 are arranged inside the cable trench wall 4; when working, the auxiliary connecting component includes a first embedded iron piece 3, and a plurality of first embedded iron pieces 3 are buried inside the cable trench wall 4. The plurality of first embedded iron pieces 3 are fixedly connected to the cable holder 2, so that the cable holder 2 is fixed on the side wall of the cable trench wall 4. The first embedded iron pieces 3 can provide a more stable support point for the cable holder 2, and can effectively reduce the problem of deformation or collapse of the cable holder 2 due to the weight of the cable or external force, and can effectively reduce the occurrence of accidents of cable falling or breaking due to loosening or collapse of the cable holder 2, thereby protecting the safety of the equipment, and at the same time can effectively reduce the friction and wear between the cable holder 2 and the cable trench wall 4, effectively extend the service life of the cable holder 2, reduce the frequency of replacement and maintenance, and effectively increase the stable operation of the cable line.
[0027] like Figure 4 and Figure 5As shown, multiple rubber pads 12 are fixedly connected to the top of the fireproof tempered glass cover plate 1; every two rubber pads 12 form a group; a support rod 13 is fixedly connected to the top of the rubber pad 12; the support rod 13 is inclined; a steel wire rope 14 is fixedly connected to the ends of the two support rods 13; during operation, the steel wire rope 14 is fixed on the fireproof tempered glass cover plate 1 through the rubber pad 12, and the steel wire rope 14 is fixed by the two support rods 13. When the cable slips from the middle of the cable support 2 due to external force or vibration, it first contacts multiple steel wire ropes 14. The impact when the cable falls is absorbed by the steel wire ropes 14. The impact force generated when the cable drops can be effectively dispersed and absorbed by the multiple steel wire ropes 14, which can effectively slow down the falling speed of the cable, effectively reduce the problem of damage and breakage caused by the direct impact of the cable on the fireproof tempered glass cover plate 1, keep the fireproof tempered glass cover plate 1 intact and stable, and can effectively reduce the danger of sparks or short circuits generated when the cable directly impacts the fireproof tempered glass cover plate 1, thereby increasing the environmental safety of the cable operation.
[0028] As Figure 4 and Figure 5 shown, multiple support frames 21 are fixedly connected to the top of the fireproof tempered glass cover plate 1; the multiple support frames 21 are arranged in an inverted V shape; the top of the support frame 21 is fixedly connected to the middle of the steel wire rope 14; during operation, when the steel wire rope 14 is impacted by the cable, the steel wire rope 14 is supported by the multiple support frames 21. The support frame 21 can provide a stable support point for the steel wire rope 14, making the steel wire rope 14 more stable and reliable. It can effectively reduce the problem of deformation or relaxation of the steel wire rope 14 due to the impact of the cable on the steel wire rope 14 and the resulting load bearing, and can disperse the load borne by the steel wire rope 14 to a wider area to reduce the problem of local overloading of the steel wire rope 14 and structural damage, thereby effectively increasing the safety and reliability of the steel wire rope 14 during long-term use.
[0029] As Figure 1 and Figure 3 shown, both sides of the bottom plate 6 are convexly arranged; the cable trench wall 4 is arranged at the inner position of the convex part on both sides of the bottom plate 6; during operation, the two cable trench walls 4 are connected to the convex positions on both sides of the corresponding bottom plate 6, so that the side wall and the bottom of the cable trench wall 4 can both contact the bottom plate 6. The convex arrangement of both sides of the bottom plate 6 can effectively increase the contact area between the cable trench wall 4 and the bottom plate 6, effectively increase the stability of the cable trench wall 4 on the bottom plate 6, and effectively make the connection between the cable trench wall 4 and the bottom plate 6 more stable.
[0030] During operation, the main body of the cable trench includes a bottom plate 6, cable trench walls 4, and a cable trench cover plate 5. The main body is prefabricated by a concrete manufacturer. The accessory connecting components include a fireproof tempered glass cover plate 1 and cable supports 2. The two cable trench walls 4 are respectively arranged on both sides of the bottom plate 6. By turning two nuts 8 to move them towards the middle at the ends of the screw rods 7, the cable trench walls 4 are connected and fixed to the bottom plate 6. Grooves are cut on the inner sides of the cable trench walls 4, and the fireproof tempered glass cover plate 1 is embedded and divided into upper and lower layers by the fireproof tempered glass cover plate 1. Cable supports 2 are installed on the side walls of the cable trench walls 4 to lay primary cables. Secondary cables and communication optical cables are laid in the lower layer of the fireproof tempered glass cover plate 1. After the cable laying is completed, the cable trench cover plate 5 is installed on the tops of the two cable trench walls 4, thus completing the cable laying work. Second embedded iron parts 9 are buried at positions near the top of the cable trench walls 4. The second embedded iron parts 9 are fixed to the angle steel 10, so that the angle steel 10 is fixed at the placement groove 51 position. At the same time, a flexible neoprene rubber plate 11 is adhered to the angle steel 10, and then the cable trench cover plate 5 is placed on the tops of the two cable trench walls 4. The cable trench walls 4 and the cable trench cover plate 5 are in flexible contact through the flexible neoprene rubber plate 11. The accessory connecting components include first embedded iron parts 3. A plurality of first embedded iron parts 3 are buried inside the cable trench walls 4. The cable supports 2 are fixedly connected to the cable trench walls 4 through the plurality of first embedded iron parts 3, so that the cable supports 2 are fixed on the side walls of the cable trench walls 4. The steel wire ropes 14 are fixed to the fireproof tempered glass cover plate 1 through rubber pads 12, and the steel wire ropes 14 are fixed by two support rods 13. When the cable slips from the middle of the cable support 2 due to external force or vibration, it first contacts the plurality of steel wire ropes 14, and the impact when the cable falls is absorbed by the steel wire ropes 14. When the steel wire ropes 14 are impacted by the cable, the steel wire ropes 14 are supported by a plurality of support frames 21. The two cable trench walls 4 are connected to the convex positions on both sides of the corresponding bottom plate 6, so that both the side walls and the bottom of the cable trench walls 4 can contact the bottom plate 6.
[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.
Claims
1. A prefabricated and assembled cable trench, comprising a bottom plate (6); characterized in that: On the top of the bottom plate (6), two cable trench side walls (4) are installed; the two cable trench side walls (4) are installed on both sides of the bottom plate (6); on the side wall of the bottom plate (6), a screw rod (7) is installed; the middle part of the screw rod (7) penetrates through the side wall of the cable trench side wall (4); two nuts (8) are threadedly connected to the middle part of the screw rod (7); the two nuts (8) are arranged oppositely; on the side walls of the two cable trench side walls (4), a fireproof tempered glass cover plate (1) is installed; the fireproof tempered glass cover plate (1) is arranged at one end close to the bottom plate (6); in the middle of the cable trench side wall (4), a cable support (2) is installed; on the top of the cable trench side wall (4), a placement groove (51) is opened; the placement groove (51) is opened on one side of the top of the cable trench side wall (4); on the tops of the two cable trench side walls (4), a cable trench cover plate (5) is installed; the cable trench cover plate (5) is arranged at the positions corresponding to the two placement grooves (51).
2. The prefabricated and assembled cable trench according to claim 1, characterized in that: On the side wall of the placement groove (51), an angle steel (10) is fixedly connected; the angle steel (10) is arranged in an L shape; at the bottom of the angle steel (10), a second embedded iron part (9) is fixedly connected; the second embedded iron part (9) is arranged obliquely; the second embedded iron part (9) is arranged inside the cable trench side wall (4); in the middle of the angle steel (10), a flexible neoprene rubber plate (11) is fixedly connected.
3. The prefabricated and assembled cable trench according to claim 2, characterized in that: On the side wall of the cable support (2), a plurality of first embedded iron parts (3) are fixedly connected; the first embedded iron parts (3) are arranged inside the cable trench side wall (4).
4. A prefabricated and assembled cable trench according to claim 3, characterized in that: On the top of the fireproof tempered glass cover plate (1), a plurality of groups of rubber pads (12) are fixedly connected; every two rubber pads (12) form a group; on the top of the rubber pad (12), a support rod (13) is fixedly connected; the support rod (13) is arranged obliquely; at the ends of the two support rods (13), a steel wire rope (14) is fixedly connected.
5. A prefabricated and assembled cable trench according to claim 4, characterized in that: On the top of the fireproof tempered glass cover plate (1), a plurality of support frames (21) are fixedly connected; the plurality of support frames (21) are arranged in an inverted V shape; at the top of the support frame (21), it is fixedly connected to the middle of the steel wire rope (14).
6. The prefabricated and assembled cable trench according to claim 5, wherein: On both sides of the bottom plate (6), it is convexly arranged; the cable trench side wall (4) is arranged inside the convex part of the bottom plate (6).