CN109546598B

CN109546598B - Fire-resistant bus duct

Info

Publication number: CN109546598B
Application number: CN201910014639.8A
Authority: CN
Inventors: 张金荣
Original assignee: Zhenjiang Melen Busway Co ltd
Current assignee: Zhenjiang Melen Busway Co ltd
Priority date: 2019-01-08
Filing date: 2019-01-08
Publication date: 2020-07-17
Anticipated expiration: 2039-01-08
Also published as: CN109546598A

Abstract

The invention discloses a fire-resistant bus duct which comprises a main body frame, wherein the main body frame is formed by splicing an upper cover plate, a lower cover plate, a left side plate and a right side plate, the left side plate and the right side plate respectively comprise an upper plate and a lower plate, the lower end of the upper plate is provided with a groove, the upper end of the lower plate is provided with a protrusion matched with the groove, the side surface of the groove is provided with a transverse first waist-shaped groove, the side surface of the protrusion is provided with a vertical second waist-shaped groove and a transverse strip-shaped sinking groove, asbestos is filled in the strip-shaped sinking groove, one end of a bolt is rectangular and is embedded in the corresponding rectangular sinking groove on the inner surface of the upper plate, the other end of the bolt penetrates through the first waist-shaped groove and the second waist-shaped groove and is screwed on a nut, a plurality of L-shaped elastic pieces are further arranged in the main body frame, one end of the L-shaped elastic pieces is connected with the inner surface of the main body frame, and the other.

Description

Fire-resistant bus duct

Technical Field

The invention relates to a fire-resistant bus duct.

Background

Along with the rapid development of cities, high-rise buildings are more and more, the electricity load of the buildings is increased rapidly, and the original electric wires and cables are gradually replaced by bus ducts with large capacity and convenient branch and cluster management due to the reasons of small capacity, inconvenient branch, inconvenient cluster management and the like.

The bus duct is widely applied to important projects such as an electric power transmission trunk line of fire fighting equipment, a fire fighting emergency equipment trunk line and the like, for example, important projects such as commercial squares, subways, airports, office buildings, entertainment places, public facilities and the like. Therefore, the safety and stability of the bus duct products are of great importance, and the requirements of China on the safety performance of the bus duct products are higher and higher, so that the continuous power supply of the power transmission main line of the building in earthquake relief is required to be ensured.

Disclosure of Invention

The invention aims to solve the defects of the prior art and provides a fire-resistant bus duct.

A fire-resistant bus duct comprises a main body frame, wherein the main body frame is formed by splicing an upper cover plate, a lower cover plate, a left side plate and a right side plate, the left side plate and the right side plate respectively comprise an upper plate and a lower plate, the upper plate and the lower plate are connected through a plurality of bolts, a groove is formed in the lower end of the upper plate, a protrusion matched with the groove is formed in the upper end of the lower plate, a first transverse waist-shaped groove is formed in the side face of the groove, a second vertical waist-shaped groove and a transverse strip-shaped sinking groove are formed in the side face of the protrusion, asbestos is filled in the strip-shaped sinking groove, one end of each bolt is rectangular and is embedded into the corresponding rectangular sinking groove in the inner surface of the upper plate, the other end of each bolt penetrates through the first waist-shaped groove and the second waist-shaped groove and is connected to a nut in a screwed mode, a plurality of L-shaped elastic sheets are further arranged in the main body frame, one end of the 35.

In order to improve the elastic deformation capability of the L-shaped elastic sheet, the L-shaped elastic sheet is made of nonmagnetic stainless steel, and a silica gel protective layer is further coated on the outer surface of the L-shaped elastic sheet.

In order to improve the fireproof and temperature-resistant capacity, asbestos nets are arranged on the inner surfaces of the upper cover plate and the lower cover plate, and the thickness of each asbestos net is 4-8 mm.

In order to obtain a lighter refractory bus duct, the upper plate is made of magnesium-aluminum alloy.

Has the advantages that:

1. with the structure of curb plate split into upper plate and hypoplastron, can be through adjusting the distance between upper and lower board, adjust the protruding degree of depth in the recess promptly, can tightly press L shape shell fragment in the upper and lower surface of circular telegram conductor to make the space between each flat conductor in the charging conductor and the insulation board reduce to minimumly, prevent that outside heat from passing through during air transmission to the circular telegram conductor, thereby make the bus duct inefficacy.

2. The setting of a plurality of L shape shell fragments can make inside circular telegram conductor "unsettled" set up in main body frame's inside, prevents that the heat from passing through main body frame and transmitting to in the circular telegram conductor, leading to circular telegram conductor temperature to rise to can't supply power for fire-fighting equipment in the conflagration.

Drawings

FIG. 1 is a schematic structural diagram of a fire-resistant bus duct;

FIG. 2 is a schematic structural view of a main body frame;

FIG. 3 is a schematic view of an L-shaped spring plate abutting against an energized conductor;

FIG. 4 is a schematic view of the structure of the lower plate;

1. the cover plate 2, the side plate 21, the upper plate 22, the lower plate 3 and the current conductor 4, L-shaped elastic sheets.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1-3, a fire-resistant bus duct comprises a main body frame, wherein the main body frame is formed by splicing an upper cover plate 1, a lower cover plate 1, a left side plate 2 and a right side plate 2, the left side plate 2 and the right side plate 2 both comprise an upper plate 21 and a lower plate 22, and the upper plate 21 is made of magnesium aluminum alloy.

The upper plate 21 and the lower plate 22 are connected through a plurality of bolts, the lower end of the upper plate is provided with a groove, as shown in fig. 4, the upper end of the lower plate is provided with a protrusion matched with the groove, the side surface of the groove is provided with a transverse first waist-shaped groove, the side surface of the protrusion is provided with a vertical second waist-shaped groove and a transverse strip-shaped sinking groove, asbestos is filled in the strip-shaped sinking groove, one end of each bolt is rectangular and is embedded in the corresponding rectangular sinking groove on the inner surface of the upper plate, the other end of each bolt penetrates through the first waist-shaped groove and the second waist-shaped groove and is screwed on a nut, a plurality of L-shaped elastic sheets 4 are further arranged in the main body frame, one end of each L-shaped elastic sheet 4 is connected with the inner surface of the main body frame, and the other end of each.

The material of L shape shell fragment 4 is no magnetism stainless steel, still scribbles the silica gel protective layer on the surface of L shape shell fragment 4.

Asbestos nets are arranged on the inner surfaces of the upper cover plate 1 and the lower cover plate 1, and the thickness of each asbestos net is 4-8 mm.

When the device is used, the position of the upper plate 21 is adjusted firstly until the L-shaped elastic sheet 4 tightly presses against the electrified conductor 3 and generates micro deformation, at the moment, the nut is screwed until the combination of the nut and the bolt tightly bites the upper plate 21 and the lower plate 22, the groove of the upper plate 21 generates micro deformation, asbestos in the strip-shaped sinking groove presses against the sinking groove, and therefore the fireproof bus duct which is good in sealing performance, has zero clearance between the electrified conductors and is placed in the main body frame in a suspended mode is obtained.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A fire-resistant bus duct is characterized by comprising a main body frame, wherein the main body frame is formed by splicing an upper cover plate, a lower cover plate, a left side plate and a right side plate, the left side plate and the right side plate respectively comprise an upper plate and a lower plate, the upper plate and the lower plate are connected through a plurality of bolts, a groove is formed in the lower end of the upper plate, a protrusion matched with the groove is formed in the upper end of the lower plate, a first transverse waist-shaped groove is formed in the side face of the groove, a second vertical waist-shaped groove and a transverse strip-shaped sinking groove are formed in the side face of the protrusion, asbestos is filled in the strip-shaped sinking groove, one end of each bolt is rectangular and is embedded in the corresponding rectangular sinking groove in the inner surface of the upper plate, the other end of each bolt penetrates through the first waist-shaped groove and the second waist-shaped groove and is connected to a nut in a rotating mode, a plurality of L-shaped elastic pieces are further arranged in the main body frame, one end of each L.

2. The flame-retardant bus duct according to claim 1, wherein the L-shaped elastic sheet is made of non-magnetic stainless steel, and a silica gel protective layer is further coated on the outer surface of the L-shaped elastic sheet.

3. The flame-resistant bus duct according to claim 1, wherein asbestos meshes are arranged on the inner surfaces of the upper cover plate and the lower cover plate, and the thickness of the asbestos meshes is 4-8 mm.

4. The flame-resistant bus duct of claim 1, wherein the upper plate is made of magnesium aluminum alloy.