Fireproof groove box at crossing position of cable trench

Abstract

The utility model discloses a fireproof groove box at the crossing position of a cable trench, which is transversely arranged at the tops of two side walls of a longitudinal cable trench in a penetrating manner, and comprises a cable box cover, a cable box body, a fireproof isolation part, a first placement part, a second placement part, a hinge part and a connecting and fixing part, the cable box cover is buckled above the cable box body; the first placing part is arranged on the inner bottom surface of the cable box body; the upper end and the lower end of the fireproof isolation part abut against the cable box cover and the cable box body respectively, a hinge part capable of rotating around the center of the hinge part is arranged in the fireproof isolation part in a penetrating mode, and the second containing part is fixedly connected to the hinge part. And the free end of the second placing part can be fixed on the fireproof isolation part through the connecting and fixing part. According to the utility model, the cable in the fireproof groove box is partitioned up and down, the fireproof isolation effect is good, and in addition, the second placing parts are arranged on the two sides of the hinge part, so that the cable can be automatically retracted when not being placed, and is fixed on the fireproof isolation plate through the fixing part.

Description

Technical Field

[0001] The utility model relates to the technical field of cable trough boxes, in particular to a fireproof trough box at the intersection of cable trenches. Background Art

[0002] Currently, during the construction of substations and converter stations, transverse and longitudinal cable trenches are set up separately in the station area and laid independently. This prevents the power transmission of the transverse cables from interfering with the signals of the longitudinal cables, reduces the risk of electrical fires and safety hazards, and facilitates subsequent operation and maintenance.

[0003] Due to the scattered distribution of various structures in the overall layout of the station area due to process limitations, there are a lot of cross-sections of horizontal cable trenches and vertical cable trenches in the station area. Figure 1 As shown, the cables in one of the trenches are typically buried directly underground to avoid spatial intersection between the existing transverse cable trench 1' and the existing longitudinal cable trench 2', thus meeting the relevant requirements of the power grid company. However, direct burial of cables through trenches is cumbersome and inconvenient to install, operate, and repair. Direct burial is prone to corrosion, tension cracking when subjected to ground pressure, and damage from bites by small underground animals, resulting in high maintenance costs.

[0004] Therefore, it is urgent to propose a new solution to solve the above problems. Summary of the Invention

[0005] The utility model provides a fireproof trough box at the intersection of cable trenches, which can solve the problems of complicated construction and high maintenance cost of direct burial of cables under trenches in the prior art.

[0006] The utility model provides a fireproof trough box at the intersection of cable trenches, which is transversely arranged on the top of the side walls on both sides of the longitudinal cable trench, and includes a cable box cover, a cable box body, a fireproof isolation part, a first placement part for placing a first cable, a second placement part for placing a second cable, a hinge part and a connecting and fixing part;

[0007] The cable box cover is buckled on the cable box body;

[0008] The first placement portion is arranged on the inner bottom surface of the cable box body;

[0009] The second placement portion is located above the first placement portion;

[0010] The upper and lower ends of the fireproof isolation part are respectively in contact with the cable box cover and the cable box body. A hinge part that can rotate around its own center is provided in the fireproof isolation part, and the second placement part is fixedly connected to the hinge part.

[0011] The free end of the second placing part can be fixed on the fireproof isolation part through the connecting fixing part.

[0012] Further, the cable box cover comprises a top cover and first side walls extending downward on both sides of the top cover, the cable box body comprises a box bottom and second side walls extending upward on both sides of the box bottom, the first side walls are provided with protruding parts protruding towards the side of the first cable, and the second side walls are provided with recessed parts matched with the protruding parts.

[0013] Further, the fireproof isolation part comprises a fireproof isolation plate and a base at the lower end of the fireproof isolation plate, and the hinge part is arranged in the middle of the fireproof isolation plate.

[0014] Further, the first placing part comprises a plurality of first arc-shaped plates connected in sequence, the base is clamped between two adjacent first arc-shaped plates, the first arc-shaped plates are provided with first rollers for placing the first cable at the middle positions of the first arc-shaped plates, and the first arc-shaped plates are fixed on the cable box body through first fastening bolts.

[0015] Further, the second placing part comprises a second arc-shaped plate, a first straight section and a second straight section arranged in sequence, the first straight section is located on the side away from the hinge part, and the second arc-shaped plate is provided with a second roller for placing the second cable at the middle position of the second arc-shaped plate.

[0016] Further, the hinge part comprises a first hinge and a second hinge, the first hinge and the second hinge are arranged in parallel and are hingedly arranged on the fireproof isolation part, and the first hinge and the second hinge can rotate around the respective centers.

[0017] Further, the connecting fixing part comprises a second fastening bolt fixed on the first straight section or the second straight section and a threaded blind hole formed in the corresponding position of the fireproof isolation plate.

[0018] As another preferred scheme, the connecting fixing part comprises a relay fixed on the fireproof isolation plate and a relay switch electrically connected with the relay, and the connection and separation of the fireproof isolation plate and the second placing part are completed through the on-off of the relay.

[0019] Further, the box bottom comprises a metal layer and a fireproof material layer filled in the metal layer.

[0020] Compared with the prior art, the cable box has the beneficial effects that:

[0021] The utility model discloses a first placing part and the second placing part of placing first cable and second cable are arranged in the fireproof groove box, and the cable in the fireproof groove box is divided into upper and lower parts, and the fireproof isolation effect is good, in addition, the hinge hinge part can drive the second placing part to rotate around its own center, so that when the second cable is not placed, it is automatically retracted, and the connecting part is arranged to fix it on the upper end of the fireproof isolation plate, saves the space, does not need to adopt the existing ground direct -buried mode, is convenient for installation and laying, and saves the cost. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the layout drawing of the fireproof groove box at the cable trench intersection position of the prior art;

[0023] Figure 2 It is the layout drawing of the fireproof groove box at the cable trench intersection position of the utility model;

[0024] Figure 3 It is Figure 2 A-A direction view in the middle;

[0025] Figure 4 It is the internal structure diagram of the fireproof groove box at the cable trench intersection position of the utility model;

[0026] Figure 5 It is Figure 4 B enlarged view in the middle;

[0027] Figure 6 It is the front view of the fireproof isolation part and the second placing part of the utility model;

[0028] Figure 7 It is the side view of the fireproof isolation part and the second placing part of the utility model;

[0029] Fig. 1, prior transverse cable trench;2', prior longitudinal cable trench;11, transverse cable trench;12, longitudinal cable trench;2, fireproof groove box;21, cable box cover;211, top cover;212, first side wall;213, protruding part;22, cable box body;221, box bottom;222, second side wall;223, recessed part;23, fireproof isolation part;231, fireproof isolation plate;232, base;24, first placing part;241, first arc-shaped plate;242, first roller;25, second placing part;251, first straight section;252, second arc-shaped plate;253, second straight section;254, second roller;26, hinge hinge part;261, first hinge hinge;262, second hinge hinge;27, connecting fixed part;271, second fastening bolt;31, first cable;32, second cable. DETAILED DESCRIPTION

[0030] In order to further understand the utility model content, characteristics and effects of the utility model, the following examples are given, and the attached drawings are combined Figures 2 to 7 The specific implementation is as follows.

[0031] As shown in Figures 2 to 3 The utility model provides a fireproof slot box at cable trench intersection position, transverse cable trench 11 and longitudinal cable trench 12 cross arrangement is set up, the both sides top of longitudinal cable trench 12 is set up with the opening for fireproof slot box 2 to wear, fireproof slot box 2 is fixed with bolt on the groove wall of overlap, transverse cable trench 11 is close to the connecting place of longitudinal cable trench 12 and is arranged in horn shape, the fireproof slot box 2 of convenient arrangement is set up.

[0032] As shown in Figure 4 As shown in, the fireproof slot box 2 includes cable box cover 21, cable box body 22, fireproof isolation part 23, first placement part 24 for placing first cable 31, second placement part 25 for placing second cable 32, hinge part 26 and connecting fixed part 27, wherein first cable 31 is power cable, second cable 32 is control cable, two cables can also be changed according to actual needs, in addition, more second cable 32 can be placed by setting two or more second placement parts 25. Wherein cable box cover 21 is buckled above cable box body 22;The first placement part 24 is arranged on the inner bottom surface of the cable box body 22;The second placement part 25 is located above the first placement part 24;The upper and lower ends of the fireproof isolation part 23 are respectively abutted with the cable box cover 21 and the cable box body 22, thereby playing a fireproof role, the hinge part 26 is arranged in the fireproof isolation part 23 and can rotate around its own center, the second placement part 25 is fixedly connected on the hinge part 26;The free end of the second placement part 25 can be fixed on the fireproof isolation part 23 through the connecting fixed part 27, wherein the free end of the second placement part 25 is relative to the fixed end, except the position where the second placement part 25 is connected with the hinge part 26, other parts belong to the free end.

[0033] The utility model discloses a fireproof slot box, which is provided with a first placement part for placing a first cable and a second placement part for placing a second cable, so that the cables in the fireproof slot box are divided into upper and lower parts, the fireproof isolation effect is good, the hinge part can drive the second placement part to rotate around its own center, so that the second placement part can be automatically retracted when no second cable is placed, and the connecting fixed part is arranged to fix the second placement part on the upper end of the fireproof isolation plate, thereby saving space, avoiding the need to adopt the existing direct-buried mode, facilitating installation and laying, and saving cost.

[0034] In this embodiment, as Figure 4As shown, the cable box cover 21 comprises a top cover 211 and a first side wall 212 extending downwardly on both sides of the top cover 211, and the top cover 211 and the first side wall 212 can be made by an integral molding process, and the cable box body 22 comprises a box bottom 221 and a second side wall 222 extending upwardly on both sides of the box bottom 221, and the box bottom 221 and the second side wall 222 are made by a welding process, and the left and right sides of the first placing part 24 are respectively abutted against the inner surfaces of the left and right second side walls 222. The first side wall 212 is provided with a protruding part 213 protruding towards the side of the first cable 31, and the second side wall 222 is provided with a recessed part 223 matched with the protruding part 213, wherein the protruding part 213 and the recessed part 223 are both semicircular, and can also be changed to other shapes according to actual conditions, and the cable box cover and the cable box body are clamped tightly through the mutual cooperation of the two, thereby increasing the stability of the fireproof slot box 2 as a whole.

[0035] In the embodiment, as shown in the figure, Figure 4 The fireproof isolation part 23 comprises a fireproof isolation plate 231 and a base 232 at the lower end of the fireproof isolation plate 231, and the hinge part 26 is arranged in the middle of the fireproof isolation plate 231, and the hinge part 26 is internally provided with a hinge and a limiting mechanism, which can drive the second placing part 25 to rotate around the center, and when the connecting and fixing part 27 is not working, the second placing part 25 is rotated from the vertical state to the horizontal state under the action of its own gravity, and is no longer continuously rotated downward under the action of the limiting mechanism.

[0036] In the embodiment, as shown in the figure, Figure 4 The first placing part 6 comprises a plurality of first arc-shaped plates 241 connected in sequence, and the base 232 is clamped between adjacent two first arc-shaped plates 241, so as to fix the fireproof isolation part 23 as a whole. The bottom of the first arc-shaped plate 241 is provided with a first roller 242 for placing the first cable 31, and the first arc-shaped plate 241 is fixedly arranged on the cable box body 22 by a first fastening bolt (not shown in the figure), and the first roller 242 is arranged to reduce the friction between the first arc-shaped plate 241 and the first cable 31, thereby facilitating the laying of the first cable 31.

[0037] When the fireproof slot box is assembled, the cable box body 22 is assembled first, then the first placing part 6 is placed, then the single fireproof isolation part 23 is clamped between adjacent two first arc-shaped plates 241, the second placing part 25 is placed on the fireproof isolation plate 231, and finally the cable box cover 21 is placed above, so that the fireproof isolation part 23 is clamped between the top cover 211 and the box bottom 221.

[0038] In the embodiment, as shown in the figure, Figure 5As shown, the projection shape of the cross section of the two side edges of the base 232 is matched with the arc surface of the first arc-shaped plate 241, so as to clamp the base 232 between two adjacent first arc-shaped plates 241, and the projection shape can also be a triangle, so that the arc surface of the first arc-shaped plate 241 is tangent to achieve the purpose of fixing the base 232.

[0039] In this embodiment, as shown in Figure 6 and 7 As shown, the second placing part 25 includes a first straight section 251, a second arc-shaped plate 252 and a second straight section 253 arranged in sequence, wherein the first straight section 251 and the second straight section 253 are straight sections, and the second arc-shaped plate 252 is an arc-shaped section matched with the second cable 32. The combination of straight line and arc shape has high overall strength. The first straight section 251 is located on the side away from the hinge part 26, and the second arc-shaped plate 252 is provided with a second roller 254 for placing the second cable 32 at the middle position. The hinge part 26 includes a first hinge 261 and a second hinge 262, which are arranged in parallel and hinged on the fireproof isolation part 23. The first hinge 261 and the second hinge 262 can rotate around their respective centers. The end of the second straight section 253 is fixedly arranged on the first hinge 261 or the second hinge 262. By arranging the first hinge 261 and the second hinge 262, two second cables 32 can be arranged on the left and right sides of the fireproof isolation plate 231, thereby improving the overall utilization rate.

[0040] In this embodiment, as shown in Figure 6 and 7 As shown, the connecting and fixing part 27 includes a second fastening bolt 271 fixed on the first straight section 251 and a threaded blind hole formed in the corresponding position of the fireproof isolation plate 231. The second fastening bolt 271 can also be arranged on the second straight section 253 according to actual needs. The material of the fireproof isolation part 23 is a metal isolation sheet, which has the effect of preventing fire.

[0041] As another preferred embodiment, the connecting fixing part 27 comprises a relay fixed on the fireproof partition plate 231 and a relay switch electrically connected with the relay, and the connection and separation of the fireproof partition plate 231 and the second placing part 25 are completed by the on-off of the relay. Specifically, when the second cable 32 needs to be placed, the relay switch is turned off, under the action of gravity, the second arc-shaped plate 252, the second roller 254, the first flat section 251 and the second flat section 253 are rotated to the horizontal direction together under the driving of the second hinge hinge 262, at this time, the second hinge hinge 262 is limited by the limiting mechanism and cannot rotate any more, and the second cable 32 is placed on the second roller 254; when the second cable 32 needs to be placed, the relay switch is turned on, the second arc-shaped plate 252, the second roller 254, the first flat section 251 and the second flat section 253 are rotated to the vertical direction together under the action of external force, and are adsorbed on the fireproof partition plate 231 by the magnetic force of the relay.

[0042] In the embodiment, the box bottom 221 comprises a metal layer and fireproof material filled in the metal layer, and can play a good fireproof effect.

[0043] The above-mentioned utility model only expresses the implementation manners of the utility model embodiments, and cannot be understood as the limitation of the utility model patent scope, and is not any form of limitation on the structure of the utility model embodiments. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model embodiments, a number of changes and improvements can be made, which belong to the protection scope of the utility model embodiments.

Claims

1. A fire barrier tray at the intersection of a cable trough, transversely disposed in the top of the side walls of a longitudinal cable trough (12), characterized in that: The cable box cover (21) is buckled above the cable box body (22); The first placement part (24) is arranged on the inner bottom surface of the cable box body (22); The second placement part (25) is located above the first placement part (24); The upper and lower ends of the fireproof isolation part (23) respectively abut against the cable box cover (21) and the cable box body (22), the hinge part (26) is arranged in the fireproof isolation part (23) and can rotate around the center of the fireproof isolation part (23), and the second placement part (25) is fixedly connected to the hinge part (26); The free end of the second placement part (25) can be fixed to the fireproof isolation part (23) through the connecting and fixing part (27). The cable box cover (21) comprises a top cover (211) and first side walls (212) extending downward on both sides of the top cover (211), the cable box body (22) comprises a box bottom (221) and second side walls (222) extending upward on both sides of the box bottom (221), the first side walls (212) are provided with protruding parts (213) protruding towards the side of the first cable (31), and the second side walls (222) are provided with recessed parts (223) matched with the protruding parts (213).

2. A fire rated enclosure at a cable tray intersection according to claim 1, wherein: The fireproof isolation part (23) comprises a fireproof isolation plate (231) and a base (232) located at the lower end of the fireproof isolation plate (231), and the hinge part (26) is arranged in the middle of the fireproof isolation plate (231).

3. A fire-rated enclosure at a cable tray intersection according to claim 1, wherein: The first placement part (24) comprises a plurality of first arc-shaped plates (241) connected in sequence, the base (232) is clamped between two adjacent first arc-shaped plates (241), the middle position of the first arc-shaped plate (241) is provided with a first roller (242) for placing the first cable (31), and the first arc-shaped plate (241) is fixedly arranged on the cable box body (22) through a first fastening bolt.

4. A fire rated enclosure at a cable tray intersection according to claim 3, wherein: The second placement part (25) comprises a first flat section (251), a second arc-shaped plate (252) and a second flat section (253) arranged in sequence, the first flat section (251) is located on the side away from the hinge part (26), and the middle position of the second arc-shaped plate (252) is provided with a second roller (254) for placing the second cable (32).

5. A fire rated enclosure at a cable tray intersection according to claim 3, wherein: The hinge part (26) comprises a first hinge (261) and a second hinge (262), the first hinge (261) and the second hinge (262) are arranged in parallel and are hingedly arranged on the fireproof isolation part (23), and the first hinge (261) and the second hinge (262) can rotate around the respective centers.

6. A fire rated enclosure at a cable tray intersection according to claim 5, wherein: ​ 7. A fireproof trough box at a cable trench intersection according to claim 6, characterized in that: The connecting fixing part (27) comprises a second fastening bolt (271) fixed on the first flat section (251) or the second flat section (253) and a threaded blind hole formed in a corresponding position on the fireproof partition plate (231).

8. A fire rated enclosure at a cable tray intersection according to claim 6, wherein: The connecting fixing part (27) comprises a relay fixed on the fireproof partition plate (231) and a relay switch electrically connected with the relay, and the connection and separation of the fireproof partition plate (231) and the second placing part (25) are completed by the on-off of the relay.

9. A fire-rated enclosure at a cable tray intersection according to claim 2, wherein: The box bottom (221) comprises a metal layer and a fireproof material layer filled in the metal layer.

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