CN217388090U - Cable bridge for laying cable - Google Patents

Abstract

The utility model discloses a cable testing bridge for laying cable. Each cable bridge is provided with a cover plate and two side plates (1), and a support piece is arranged between the two side plates. Each supporting piece is provided with a supporting rod (3), a sleeve (5) is sleeved outside each supporting rod, and a ball is arranged between each supporting rod and each sleeve. Every interval 2 ~ 3 support piece sets up 1 ~ 5 spacing piece (2) on a support piece, and the bottom of spacing piece is passed through fastening piece (7) and is connected with the sleeve pipe, and the sleeve pipe is portable and rotates for fastening piece. The ends of the adjacent side plates of the two adjacent cable bridges are connected through a connecting piece (101) and a connecting sleeve (102). The below of apron both sides all is equipped with first wedge piece, and the lateral surface of two curb plates all is equipped with the second wedge piece, and the apron is covered tightly when the second wedge piece is located the space between first wedge piece and the apron. The utility model discloses can be used to the cable laying work progress in enterprises such as petrochemical, power plant.

Description

Cable bridge for laying cable

Technical Field

The utility model relates to a cable testing bridge for laying cable.

Background

The production device of the large petrochemical enterprise has a large number of cables, a large number of cables with large sections and a large number of underground pipelines inside the device. At present, the widely adopted mode is that a cable bridge is arranged in a device system pipe gallery, and a cable is laid on the cable bridge, so that the occupied land is saved. The cable bridge has the advantages of convenience in cable laying and the like, but the currently used stepped cable bridge has the following problems. Firstly, the chassis is a fixed chassis, and the cable needs to be carefully operated by constructors in the laying and drawing process, otherwise the cable sheath is easily scratched, and the cable is irreversibly damaged. Second, in petrochemical enterprises, there are about 50 or more cables laid on each cable tray. The large-section cables are more, the cables are mutually extruded, and the heat dissipation performance is poor. Thirdly, in petrochemical enterprises, frequent cable replacement is often required due to the addition of some loads or device modification. In the traditional step type cable bridge, the cables are extruded mutually, so that the cables are inconvenient to find. Even if the cable is positioned, the cable can be manually taken out from the interior of the cable tray. During the process of removing the cable, the process and its dangers are very serious because other cables are live. Fourthly, the traditional cable bridge is connected through bolts, so that the connection is inconvenient, the construction quantity is large, and the connection can be completed only by certain construction equipment. Especially in petrochemical enterprise, the cable testing bridge is arranged in the system piping lane, and this mounting means's risk is great, and construction cost is higher. Fifthly, a cover plate of the cable bridge is arranged at the top of the side plate and fixed by a binding wire. The fixing mode has the problems that the binding is not firm, the binding wire is easy to crack after being exposed to the sun for a long time, and the cover plate is easy to be opened by strong wind.

Disclosure of Invention

The utility model aims at providing a cable testing bridge for laying cable to solve the cable that current cable testing bridge exists and extrude mutually between easy scratch sheath of laying process, cable and lead to the thermal diffusivity poor, cable replacement difficulty, connect inconvenient scheduling problem between the cable testing bridge.

In order to solve the above problem, the utility model discloses the technical scheme who takes is: the utility model provides a cable testing bridge for laying cable, every cable testing bridge all is equipped with a apron and two curb plates, is equipped with support piece, its characterized in that between two curb plates: every support piece all is equipped with a bracing piece, the both ends of bracing piece are fixed in respectively on two curb plates, a bracing piece overcoat has a sleeve pipe, be equipped with the ball between bracing piece and the sleeve pipe, 2 ~ 3 support pieces in every interval, set up 1 ~ 5 spacing block on a support piece, the bottom of spacing block links to each other with the sleeve pipe through fastening piece, the sleeve pipe is portable and rotate for fastening piece, the tip of adjacent curb plate is connected through connection piece and adapter sleeve in two adjacent cable testing bridges, the below of apron both sides all is equipped with first wedge piece, the lateral surface of two curb plates all is equipped with the second wedge piece, the apron lid is tight when the second wedge piece is located the space between first wedge piece and the apron.

Adopt the utility model discloses, following beneficial effect has: (1) when the cable is pulled, the sleeve rotates around the support rod through the balls, rolling friction is generated between the cable sheath and the sleeve, and the sleeve cannot scrape and rub the cable sheath. Therefore, the phenomenon of scratching the cable sheath does not substantially occur. (2) A plurality of cable laying areas can be formed between the isolation sheet and the side plate or between the isolation sheet and the isolation sheet, and each area is easy to lay the cables in order and has a small number. Thus, mutual compression between the cables can be reduced, and heat dissipation can be improved. When the cable is replaced, the cable is easy to find. Because the friction force between the cables is small, the cables can be replaced by the tractor, only one end of each cable needs to be fixed on the tractor for traction, and the risk of live working is avoided; this avoids the problems of manual cable replacement. (3) Two adjacent cable testing bridges are connected through the connecting sheets and the connecting sleeves, so that the device is very convenient. The connection is firm, the construction amount is small, special construction appliances are not needed, and the safety risk and the construction cost are greatly reduced. (4) The utility model discloses used spacing block and mode that sets up thereof make the material quantity of spacing block less to the spacing block can be installed fast and finish. (5) Adopt the utility model discloses a scheme, the fixed ratio of apron is more firm, can not be lifted by strong wind, and construction convenience.

The utility model discloses can be used to the cable laying work progress in enterprises such as petrochemical, power plant.

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The drawings and detailed description do not limit the scope of the invention as claimed.

Drawings

Fig. 1 is a top view of a cable tray for cabling according to the present invention (cover plate not shown).

Fig. 2 is a sectional view a-a (showing the cover plate) in fig. 1.

Fig. 3 is a sectional view (enlarged) taken along line B-B in fig. 2.

Fig. 4 is a schematic perspective view of a connecting sheet used in the present invention.

Fig. 5 is a schematic view of a three-dimensional structure of the connecting sleeve used in the present invention.

In fig. 1 to 5, the same reference numerals denote the same technical features. The reference numbers indicate: 1-side plate; 2-a spacer; 3, supporting a rod; 4-a button on the fastening member 7; 5, sleeving a pipe; 6-rolling balls; 7-a fastening piece; 71-the upper half of the fastener; 72-fastening the lower half part of the fastener; 8, covering a plate; 91-a first wedge-shaped member; 92-a second wedge; 101-connecting piece; 102-connecting sleeve; 11-a connecting plate; 12-the earth wire passes through the space.

Detailed Description

Referring to fig. 1, 2, 3, 4 and 5, the cable bridge (referred to as cable bridge for short) for laying cable of the present invention is provided with a cover plate 8 and two side plates 1, and a plurality of supporting members are provided between the two side plates 1. Every support piece all is equipped with a bracing piece 3, and the both ends of bracing piece 3 are fixed in respectively on two curb plates 1. A sleeve 5 is sleeved outside one supporting rod 3, and a ball 6 is arranged between the supporting rod 3 and the sleeve 5. The cross-sectional shapes of the support rod 3 and the sleeve 5 are both circular.

The utility model discloses, 2 ~ 3 support piece in every interval set up 1 ~ 5 spacing pieces 2 on a support piece. The bottom of the spacer 2 is connected to the sleeve 5 by a fastener 7, and the sleeve 5 is movable and rotatable relative to the fastener 7. The fastening member 7 may be an existing fastening member. The fastening member 7 shown in the drawings is composed of a fastening member upper half 71 and a fastening member lower half 72; the two parts are both in a semi-cylindrical shape and are connected through a hidden buckle. The semicylindrical central hole of the upper fastener half 71 and the semicylindrical central hole of the lower fastener half 72 are fitted to the outside of the sleeve 5 and allow the relative movement and rotation of the sleeve 5. The button 4 on the fastening member 7 is pressed to separate the upper fastening member half 71 and the lower fastening member half 72 by an internal mechanical mechanism. Therefore, the spacer 2 can be easily attached and detached. As shown in fig. 3, the spacer 2 is formed by a rectangular plate and a semicircular hole formed at the bottom, and the edge of the semicircular hole is fixedly connected with the upper half part 71 of the fastening member. The spacer 2 and the two side plates 1 are parallel to each other. The spacer 2 can be kept in an upright state by the pressing of the cable.

The ends of the adjacent side plates 1 of the two adjacent cable bridges are connected through a connecting sheet 101 and a connecting sleeve 102. As shown in fig. 1, in a cable bridge, a connecting piece 101 is disposed on an outer side surface of one end of each of two side plates 1, and a connecting sleeve 102 is disposed on an inner side surface of the other end of each of the two side plates 1. When two identical cable bridges are connected, the end parts of the two side plates 1 provided with the connecting pieces 101 in one cable bridge can be pressed to be close to each other, then the two side plates are sleeved between the end parts of the two side plates 1 provided with the connecting sleeves 102 in the other cable bridge, and then the two connecting pieces 101 are respectively inserted into the two connecting sleeves 102 from top to bottom, namely the two cable bridges are connected. In a cable bridge, one side plate 1 has two side surfaces, namely an inner side surface and an outer side surface; the inner side surface is a side surface adjacent to the other side plate 1, and the outer side surface is a side surface not adjacent to the other side plate 1. In the cable bridge, a connecting sheet 101 and a connecting sleeve 102 can be flexibly arranged in various modes; as long as the connecting piece 101 can be inserted into the connecting sleeve 102 to connect the two cable trays. Referring to fig. 1, 4 and 5, the cross-sectional shape of the connecting piece 101 is L-shaped, and the cross-sectional shape of the connecting sleeve 102 is a rectangular frame shape with an opening. After the connection piece 101 is inserted into the connection sleeve 102, the narrow side of the connection piece 101 is inserted into the opening.

The utility model discloses, all be equipped with first wedge piece 91 in the below of apron 8 both sides (first wedge piece 91 links to each other with apron 8 through connecting plate 11), the lateral surface of two curb plates 1 all is equipped with second wedge piece 92, and apron 8 covers tightly when second wedge piece 92 is located the space between first wedge piece 91 and the apron 8, see fig. 2. The second wedge 92 may be located in the space between the first wedge 91 and the cover plate 8 by pressing the cover plate 8 downwards or by the cover plate 8 and the first wedge 91 entering from the cable tray end. The first wedge-shaped member 91 and the second wedge-shaped member 92 are both strip-shaped, and the length is generally 2500-3500 mm. The cross-sectional shapes of the first wedge-shaped piece 91 and the second wedge-shaped piece 92 are right-angled triangles, and the lengths of the two right-angled sides are generally 30-50 mm. Near both ends of the side plate 1, the first wedge member 91, the second wedge member 92, and the connecting plate 11 are not provided.

In the electrical design of petrochemical enterprises, an earth wire needs to be laid along with a cable bridge. The method adopted at present is to place the grounding wire on the cable bridge or to replace the grounding wire with flat steel and weld the flat steel on the upright post of the cable bridge. In the former, because the grounding wire and the cable are laid together, heat conduction exists, and insulation is affected; the latter requires special construction equipment, and the construction cost is high. In order to solve the above problem, the present invention adopts a technical solution that a ground wire passing space 12 is formed between the second wedge member 92 and the cover plate 8. When laying the ground wire, the ground wire passes through the space 12 from the ground wire, and is laid alone without being laid together with the cable. To meet the electrical design specifications required in petrochemical enterprises, the ground wire passing through the space 12 should be able to pass through a ground wire having a cross-sectional area of at least 240 square millimeters.

The utility model discloses a cable testing bridge, the thickness of curb plate 1 generally is 3 ~ 5 millimeters, and the material generally is the aluminum alloy. The thickness of the spacer 2 is generally 2 to 3 mm, the height h is generally 50 to 150 mm, and the material is generally engineering plastic (the friction coefficient of the engineering plastic should be small). The distance t between the sleeves 5 in two adjacent supporting pieces is generally 60-80 mm. The material of the support rod 3, the sleeve 5 and the ball 6 is generally steel (e.g., stainless steel), and the material of the connecting piece 101, the connecting sleeve 102, the first wedge member 91, the second wedge member 92, the connecting plate 11 and the cover plate 8 is generally aluminum alloy.

Claims (2)

1. The utility model provides a cable testing bridge for laying cable, every cable testing bridge all is equipped with one apron (8) and two curb plates (1), is equipped with support piece, its characterized in that between two curb plates (1): each supporting piece is provided with a supporting rod (3), two ends of each supporting rod (3) are respectively fixed on the two side plates (1), a sleeve (5) is sleeved outside one supporting rod (3), balls (6) are arranged between the supporting rods (3) and the sleeves (5), and 2-3 supporting pieces are arranged at intervals, set up 1 ~ 5 spacing block (2) on a support piece, the bottom of spacing block (2) is passed through fastening piece (7) and is linked to each other with sleeve pipe (5), sleeve pipe (5) are for fastening piece (7) portable and rotate, the tip of adjacent curb plate (1) is connected through connection piece (101) and adapter sleeve (102) in two adjacent cable testing bridges, the below of apron (8) both sides all is equipped with first wedge piece (91), the lateral surface of two curb plates (1) all is equipped with second wedge piece (92), apron (8) are covered tightly when second wedge piece (92) are located the space between first wedge piece (91) and apron (8).

2. A cable tray for cabling according to claim 1, wherein: a ground wire passing space (12) is formed between the second wedge member (92) and the cover plate (8).

Images