CN220022249U

CN220022249U - Fire-resistant bus duct

Info

Publication number: CN220022249U
Application number: CN202320862133.4U
Authority: CN
Inventors: 唐兵
Original assignee: Sichuan Zhizhilian Electrical System Co ltd
Current assignee: Sichuan Zhizhilian Electrical System Co ltd
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-11-14
Anticipated expiration: 2033-04-18

Abstract

The utility model relates to the technical field of bus ducts, in particular to a fire-resistant bus duct, which comprises an upper cover plate, wherein the bottom of the upper cover plate is movably connected with a placing wire duct, a conductor is inserted into the placing wire duct, two sides of the placing wire duct are fixedly connected with radiating fins, the bottom of the placing wire duct is connected with a lower cover plate in a threaded manner, the improved fire-resistant bus duct is provided with cavity structures at two ends of the conductor, a heat source is prevented from directly contacting a fireproof layer, the arranged fin-shaped radiating fins can accelerate the exchange of internal hot air with the outside, the internal temperature is reduced, the groove structures arranged at one ends of the fireproof cotton and the rubber plate are convenient to detach and replace, and other filling materials are replaced according to the requirements of the site.

Description

Fire-resistant bus duct

Technical Field

The utility model relates to the technical field of bus ducts, in particular to a fire-resistant bus duct.

Background

The conventional power transmission process is generally performed by using wires and cables, but with the development of economy, the disadvantages of small capacity, inconvenient branching, inconvenient cluster management and the like of the wires and cables are gradually highlighted due to the rapid increase of the power load of buildings and workshops. In order to meet the requirements of high-current low-voltage transmission lines, the bus duct system with large capacity, convenient branching and convenient cluster management is adopted in the power distribution design.

The prior patent (publication number: CN 204290219U) discloses a fire-resistant bus duct. The high-voltage power supply comprises a shell and multiphase conductors coated in the shell, wherein a polyester film is coated outside each phase of conductors, a mica tape is coated outside each polyester film, a layer of magnesium oxychloride fireproof plate is coated outside each mica tape, and the shell is fixedly arranged outside each magnesium oxychloride fireproof plate. After the structure is adopted, the polyester film coated outside each phase conductor ensures the safe operation of the bus duct under the non-ignition state; the mica tape coated by the polyester film can cope with insulation among phases of the bus duct under the fire state; the mica tape is wrapped with a layer of magnesium oxychloride fireproof plate, so that the heat insulation and fire resistance are further improved, and the internal insulating materials and conductors are further ensured to be in a relatively mild environment; the shell made of the steel plate with the thickness of 2.5-3.0 mm ensures that the whole bus duct has enough mechanical performance under the ignition state, and meanwhile, the structure is compact, and the whole structure form is controlled in a smaller and lighter range.

The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: 1. under the condition of overhigh temperature for a long time, the bus duct is easy to deform correspondingly, and the internal conductor is easy to squeeze to cause accidents; 2. the tightness of the equipment is also easy to be influenced, the material in the bus duct is difficult to maintain, and the adjustment is inconvenient.

Disclosure of Invention

The utility model aims to provide a fire-resistant bus duct, which solves the problems that the bus duct provided in the background technology is easy to deform correspondingly, the internal conductor is easy to squeeze and accident, the maintenance of the material is difficult, and the adjustment is inconvenient. In order to achieve the above purpose, the present utility model provides the following technical solutions: the fireproof bus duct comprises an upper cover plate, wherein the bottom of the upper cover plate is movably connected with a placing line duct, a conductor is inserted into the placing line duct, cooling fins are fixedly connected to two sides of the placing line duct, and a lower cover plate is connected with the bottom of the placing line duct through threads;

the upper cover plate is characterized in that one side of the upper cover plate is fixedly connected with a longitudinal side edge, the side surface of the longitudinal side edge is fixedly connected with an upper transverse plate, the top of the upper transverse plate is fixedly connected with a sealing groove, the top of the upper transverse plate is movably connected with a bending edge, and one side, close to the inner side, of the bending edge is fixedly connected with a connecting edge;

the utility model discloses a wire casing, including placing wire casing, the both sides fixedly connected with deformation groove of wire casing, the inside one side fixedly connected with rubber groove of leaning on of deformation groove, the inside grafting of rubber groove has the rubber slab, the side fixedly connected with fire prevention groove of rubber groove, the inside grafting of fire prevention groove has the fire prevention cotton board.

Further preferably, two ends of the electric conductor are movably connected with clamping plates, and a cavity groove is fixedly connected to one inner side of each clamping plate.

Further preferably, a vertical plate is fixedly connected to the side face of the lower cover plate, a lower transverse plate is fixedly connected to the side face of the vertical plate, a fastening bolt is connected to the side face of the lower transverse plate in a threaded mode, and a bottom plate is connected to the inner threads of the fastening bolt.

Further preferably, one end of the rubber plate and one end of the fireproof cotton plate are provided with a handle groove structure.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the heat source is prevented from directly contacting the fireproof layer through the cavity structures arranged at the two ends of the conductor, the fin-shaped radiating fins can quicken the exchange between internal hot air and the outside, the internal temperature is reduced, the groove structures arranged at one ends of the fireproof cotton and the rubber plate are convenient to detach and replace, and other filling materials are replaced according to the field requirement.

According to the utility model, through the structure of the sealing groove and the connecting screw, the overall strength of the bus duct is enhanced, the sealing effect is improved, and the deformation grooves and the rubber grooves arranged on the two sides of the side plate can avoid accidents caused by the damage of the internal conductor due to high temperature or pressure.

Drawings

FIG. 1 is a schematic elevational view of the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the front view of the present utility model;

fig. 3 is a schematic top view of the internal structure of the present utility model.

In the figure: 1. an upper cover plate; 101. longitudinal side edges; 102. an upper cross plate; 103. sealing grooves; 104. bending the edge; 105. connecting edges; 2. placing a wire slot; 201. a deformation groove; 202. a rubber groove; 203. a rubber plate; 204. a fireproof groove; 205. a fireproof cotton plate; 3. an electric conductor; 301. a clamping plate; 302. a cavity groove; 4. a heat sink; 5. a lower cover plate; 501. a riser; 502. a lower cross plate; 503. a fastening bolt; 504. a bottom plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.

Referring to fig. 1 to 3, the present utility model provides a technical solution: the fire-resistant bus duct comprises an upper cover plate 1, wherein the bottom of the upper cover plate 1 is movably connected with a placing line duct 2, a conductor 3 is inserted into the placing line duct 2, cooling fins 4 are fixedly connected to two sides of the placing line duct 2, and a lower cover plate 5 is connected with the bottom of the placing line duct 2 through threads;

one side of the upper cover plate 1 is fixedly connected with a longitudinal side edge 101, the side surface of the longitudinal side edge 101 is fixedly connected with an upper transverse plate 102, the top of the upper transverse plate 102 is fixedly connected with a sealing groove 103, the top of the upper transverse plate 102 is movably connected with a bending edge 104, and one side, close to the inner side, of the bending edge 104 is fixedly connected with a connecting edge 105;

the two sides of the placing wire groove 2 are fixedly connected with a deformation groove 201, one side, close to the inside, of the deformation groove 201 is fixedly connected with a rubber groove 202, a rubber plate 203 is inserted into the rubber groove 202, a fireproof groove 204 is fixedly connected with the side face of the rubber groove 202, and a fireproof cotton plate 205 is inserted into the fireproof groove 204.

In this embodiment, as shown in fig. 2, two ends of the electric conductor 3 are movably connected with clamping plates 301, and a cavity groove 302 is fixedly connected to an inner side of the clamping plates 301, it should be noted that, the clamping plates 301 and the cavity groove 302 of the electric conductor 3 are used for limiting and positioning, so that the electric conductor 3 is convenient to fix, and meanwhile, the cavity groove 302 can be filled with inert gas to perform fireproof protection.

In this embodiment, as shown in fig. 1, a riser 501 is fixedly connected to a side surface of a lower cover plate 5, a lower transverse plate 502 is fixedly connected to a side surface of the riser 501, a fastening bolt 503 is screwed to a side surface of the lower transverse plate 502, and a bottom plate 504 is screwed to an inner portion of the fastening bolt 503, and it is noted that the overall strength is enhanced by the fastening piece of the lower cover plate 5 and the fastening bolt 503 structure, and the sealing performance is stronger and good equipment is more fastened.

In this embodiment, as shown in fig. 3, one ends of the rubber plate 203 and the fireproof cotton plate 205 are set to be handle groove structures, and it should be noted that, when maintenance is performed through the handle groove structures, material replacement can be conveniently performed, and corresponding effects of dampproofing, fireproof, heat insulation, heat preservation and the like can be performed by adding different types of materials according to actual needs, so that the universality and the adaptability are wider.

The application method and the advantages of the utility model are as follows: when the fire-resistant bus duct is used, the working process is as follows:

as shown in fig. 1, 2 and 3, the conductive sheet 3 is first placed in the placing slot 2, the surrounding is fixed and limited by the clamping plate 301 and the cavity groove 302, then the rubber plate 203 and the fireproof cotton plate 205 are distributed and placed in the rubber groove 202 and the fireproof groove 204, then the deformation grooves 201 with fin-shaped cooling fins 4 on two sides are fixed, the lower cover plate 5 with the vertical plate 502 and the upper cover plate 1 with the longitudinal side 101 are respectively fixed, the lower transverse plate 502 is fixed at the bottom plate 504 by the fastening bolt 503, and the bending edge 104 of the connecting edge 105 and the sealing groove 103 of the upper transverse plate 102 are fixed.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Refractory bus duct, including upper cover plate (1), its characterized in that: the bottom of the upper cover plate (1) is movably connected with a placing wire groove (2), a conductor (3) is inserted into the placing wire groove (2), cooling fins (4) are fixedly connected to two sides of the placing wire groove (2), and a lower cover plate (5) is connected with the bottom of the placing wire groove (2) through threads;

one side of the upper cover plate (1) is fixedly connected with a longitudinal side edge (101), the side surface of the longitudinal side edge (101) is fixedly connected with an upper transverse plate (102), the top of the upper transverse plate (102) is fixedly connected with a sealing groove (103), the top of the upper transverse plate (102) is movably connected with a bending edge (104), and the inner side of the bending edge (104) is fixedly connected with a connecting edge (105);

the novel fireproof cable trough is characterized in that deformation grooves (201) are fixedly connected to two sides of the placement cable trough (2), a rubber groove (202) is fixedly connected to one inner side of the deformation groove (201), a rubber plate (203) is inserted into the rubber groove (202), a fireproof groove (204) is fixedly connected to the side face of the rubber groove (202), and a fireproof cotton plate (205) is inserted into the fireproof groove (204).

2. A fire resistant bus duct as set forth in claim 1, wherein: two ends of the conductor (3) are movably connected with clamping plates (301), and a cavity groove (302) is fixedly connected to one inner side of each clamping plate (301).

3. A fire resistant bus duct as set forth in claim 1, wherein: the side fixedly connected with riser (501) of apron (5) down, the side fixedly connected with of riser (501) is diaphragm (502) down, the side threaded connection of diaphragm (502) has fastening bolt (503) down, the inside threaded connection of fastening bolt (503) has bottom plate (504).

4. A fire resistant bus duct as set forth in claim 1, wherein: one end of the rubber plate (203) and one end of the fireproof cotton plate (205) are arranged to be a handle groove structure.