CN117117730A - Combined cable bridge - Google Patents

Abstract

The application relates to a combined cable bridge, which comprises a bridge groove, a conducting plate and a shielding cover; the bottom of the bridge groove body is provided with the conducting plate, the shielding cover is detachably connected with the bridge groove, and the shielding cover is electrically connected with the conducting plate when being arranged on the bridge groove; the shielding cover and the bottom of the bridge groove form a hollow cavity, the shielding cover is a conductor, the conducting plate is arranged inside the bottom of the bridge groove, the bottom of the bridge groove is provided with a plurality of plug interfaces, the plug interfaces are communicated with the conducting plate, the shielding cover is provided with a plug board, and the plug board is matched with the plug interfaces; the shielding cover and the bridge groove form a hollow cavity structure, and a weak current cable can be arranged in the cavity of the hollow cavity structure and can be detachably connected, so that the shielding cover is not required to be installed when only the weak current cable or the strong current cable exists, and the use flexibility is improved.

Description

Combined cable bridge

Technical Field

The application relates to the field of cable bridges, in particular to a combined cable bridge.

Background

The cable bridge is used for running the cable, and when the cable in the electric cable is in hidden application, a galvanized steel plate or a plastic pipe is generally used as a protective sleeve to be buried in the ground or to be run in a floor slab or a wall; when the cable is exposed, the cable is a bridge, and a protective sleeve is not required to be arranged on the cable; the bridge frame in the building can be independently erected, can be additionally arranged on various building (construction) structures and pipe gallery brackets, and can carry out different surface treatments such as galvanization and the like on the surface of the bridge frame according to different environments.

The cable bridge is generally composed of a bracket, a bracket arm, a mounting accessory and the like, and is divided into a groove type cable bridge, a tray type cable bridge, a ladder frame type cable bridge, a grid type cable bridge and the like according to the structure; according to the application, there are strong cable bridge, weak cable bridge, etc.

For a strong cable bridge and a weak cable bridge, in the prior art, the structure is not different, if the bridge runs strong current, the bridge is a strong bridge, and similarly, if the bridge runs weak current, the bridge is a weak current bridge; the reason for distinguishing the cable bridge is that when strong current is supplied, strong magnetic fields are formed around the cable conductors to influence weak current signals, so that the cable bridge needs to be separated or separated by arranging steel plate partition plates in the same bridge, and meanwhile, the steel plates are required to be grounded; in some nonmetallic cable trays, it is particularly desirable to provide a separate grounding structure.

Chinese patent application CN208707249U discloses a shielded weak-current cable bridge, which at least comprises a body and a body conductive connecting wire made of a plate, wherein the body comprises a main body and a cover plate, the main body is a frame with an open end, the cover plate is detachably covered on the open end of the main body, the plate comprises an upper substrate and a lower substrate which are stacked, a plurality of metal conductive layers clamped between the upper substrate and the lower substrate, and an insulating layer clamped between two adjacent metal conductive layers; the first end of the body conductive connecting wire is connected with each metal conductive layer of the main body, and the second end of the body conductive connecting wire is connected with each metal conductive layer of the cover plate. The main body and the cover plate are manufactured by using plates with multiple metal conductive layers, and the metal conductive layers of the cover plate are connected with the metal conductive layers of the main body through the body conductive connection, so that a multi-layer electromagnetic shielding structure is formed in the inner space of the body, radiation interference can be effectively reduced, and the shielding effect is ensured. It should be noted that, it is to solve in the prior art that the connection of bridge cover plate and cell body is unreliable, is difficult to form stable shielding effect.

Chinese patent application CN110401158A discloses a shielding type weak current cable bridge, including U-shaped base plate, apron and braced frame, the left top fixedly connected with fixed block of U-shaped base plate, the back of fixed block is rotated through the connecting rod with the left side of apron bottom and is connected, the bottom fixedly connected with first slide rail of U-shaped base plate inner wall. This shielding type weak current cable bridge, the shielding layer that sets up in U-shaped base plate and the apron can prevent that weak current cable from receiving external magnetic field interference, make it can steady normal work, improve the reliability of this cable bridge, the movable frame can divide the inside space of U-shaped base plate and open, realize placing the cable classification, make it be difficult for winding, make things convenient for the staff to distinguish to seek, outside pulling baffle makes the gag lever post break away from the arc wall, can remove the position of carriage to reach the purpose of adjusting backup pad height, improve the utilization ratio in space, the practicality has been improved. But the structure is complex, the movable parts are more, and the maintenance is inconvenient.

Chinese patent application CN104917119a discloses a U-shaped cable bridge with weak current shielding layer, including U-shaped base and arc apron, the middle part of U-shaped base both sides is equipped with the support flange respectively, is equipped with the U-shaped metal mesh rather than the inner wall laminating in the U-shaped base of support flange below, is equipped with the division board on the support flange, is equipped with the shielding layer that the electrical signal shielding material made in the division board, and the handing-over of one side of arc apron is equipped with the recess in one side of U-shaped base port, the tip of opposite side, and the boss lock of recess and U-shaped base opposite side upper end. This scheme has increased cable testing bridge's space of placing through the cooperation of U type base and arc apron, has certain radiating effect, through the structural design of U-shaped metal mesh, will place the weak current cable shielding in the period, cooperates the structural design of the division board of its top and the shielding layer in the division board simultaneously, can avoid the interference of the strong magnetic field of its top. However, the weak current cable is sealed in a sealed space below the strong current cable, and after the strong current cable is placed, the condition of the weak current cable can be checked only by taking out the strong current cable, so that the maintenance is not facilitated.

In view of the foregoing, there is a need for a combined cable bridge that is simple in structure, convenient to connect, capable of effectively shielding weak current from strong current interference, and flexible in use.

Disclosure of Invention

The application aims to provide the combined cable bridge which has a simple structure, is convenient to connect, can effectively shield strong electric interference for weak current and is flexible to use.

In order to achieve the above purpose, the technical scheme adopted by the application is as follows:

a combined cable bridge comprises a bridge groove, a conducting plate and a shielding cover; the bottom of the bridge groove body is provided with the conducting plate, the shielding cover is detachably connected with the bridge groove, and the shielding cover is electrically connected with the conducting plate when being arranged on the bridge groove; the shielding cover and the bottom of the bridge groove form a hollow cavity, and the shielding cover is a conductor.

As a preferable technical scheme, the conducting plate is arranged inside the bottom of the bridge groove, a plurality of plug interfaces are arranged at the bottom of the bridge groove, the plug interfaces are communicated with the conducting plate, a plug board is arranged on the shielding cover, and the plug board is matched with the plug interfaces.

As a preferred technical scheme, the plug interface is in interference fit with the plug board.

As a preferable technical scheme, the conductive plate is detachably connected with the bridge groove.

As a preferred technical solution, the conductive plate is detachably connected with the shielding cover.

As a preferred technical solution, the conductive plates can be detachably connected.

As a preferable technical scheme, the conductive plates are provided with butt joint holes, and the butt joint holes are connected through butt joint columns.

As a preferable technical scheme, the end part of the bridge groove is a beveled end, and the end part of the shielding cover is a beveled end correspondingly.

As a preferable technical scheme, the bridge groove is detachably connected with a plurality of shielding covers.

As a preferred technical solution, the bridge groove is made of a non-conductive material.

The application has the advantages that:

1. the application relates to a combined cable bridge, which comprises a bridge groove, a conducting plate and a shielding cover; the bottom of the bridge groove body is provided with the conductive plate, the conductive plate can be connected with a ground wire to realize grounding, the shielding cover is detachably connected with the bridge groove and can form a hollow cavity structure, and a weak current cable can be arranged in the cavity of the bridge groove, so that the shielding cover is not required to be installed when only the weak current cable or the strong current cable exists, and the use flexibility is improved; when the shielding cover is arranged on the bridge groove, the shielding cover is electrically connected with the conducting plate, and the shielding cover is a conductor to form a grounded shielding bin, so that the influence of a strong current cable outside the shielding cover on a weak current cable in the shielding cover can be effectively shielded.

2. According to the combined cable bridge, the conducting plates are arranged in the bottoms of the bridge grooves, so that conducting materials can be relatively saved, the bottoms of the bridge grooves are provided with a plurality of plug interfaces, the plug interfaces are communicated with the conducting plates, so that the shielding covers and the conducting plates form a grounded shielding area, the plug interfaces are convenient for the matching connection of shielding covers with different widths, and the corresponding shielding covers can be selected according to the number of actual weak current cables; the shielding cover is provided with the plugboard thereon, the plugboard is matched with the plugboard, and specifically, the plugboard is in interference fit with the plugboard, so that the stability of electric connection can be ensured.

3. According to the combined cable bridge, the conducting plate is detachably connected with the bridge groove, and further, the conducting plate is not installed when a strong current cable and a weak current cable are not required to be installed at the same time, so that the use cost is greatly saved.

4. The conducting plates of the combined cable bridge can be detachably connected, namely, the conducting plates of the two groups of combined cable bridges can be electrically connected, so that the splicing and lengthening of the cable bridge are realized; correspondingly, the conductive plate is provided with the butt joint holes, the butt joint holes are connected through the butt joint columns, and the stability of electric connection can be relatively kept through the butt joint columns.

5. According to the combined cable bridge, the end part of the bridge groove is the beveling end, the end part of the shielding cover is the beveling end correspondingly, and the two beveling ends are spliced, so that the turning of the cable bridge can be realized.

6. The combined cable bridge has the advantages that the bridge groove is detachably connected with the shielding covers, namely, the shielding covers are connected with the bridge groove in a sectional splicing mode, so that the combined cable bridge is convenient to transport and install, and cables in a certain section of shielding covers are overhauled.

7. The bridge groove of the combined cable bridge is made of non-conductor materials, so that the use cost of the cable bridge can be greatly saved.

Drawings

Fig. 1 is a schematic diagram of a bridge trough of a modular cable bridge according to the present application.

Fig. 2 is a schematic diagram of a combined cable bridge and cable according to the present application.

Fig. 3 is a schematic view of a conductive plate of a combined cable bridge according to the present application.

Fig. 4 is a schematic diagram showing a separation state of a conductive plate of a combined cable bridge according to another embodiment of the application.

Fig. 5 is a schematic diagram of a combination state of a conductive plate of another combined cable bridge frame according to the present application.

Fig. 6 is a schematic view of a splicing of a further modular cable tray according to the application.

Fig. 7 is a schematic view of a turning of a further modular cable bridge according to the application.

Fig. 8 is a schematic view of a modular cable bridge according to the application.

Detailed Description

The application is further described below in conjunction with the detailed description. It is to be understood that these examples are illustrative of the present application and are not intended to limit the scope of the present application. Further, it is understood that various changes and modifications of the present application may be made by those skilled in the art after reading the description of the present application, and such equivalents are intended to fall within the scope of the application as defined in the appended claims.

Reference numerals and components referred to in the drawings are as follows:

1. bridge groove 2, conductive plate 3, shielding cover

4. Weak current cable 5, strong current cable 11, plug interface

21. Butt joint hole 22. Butt joint column

Example 1

Referring to fig. 1, fig. 2, and fig. 3, fig. 1 is a schematic diagram of a bridge groove of a combined cable bridge according to the present application; FIG. 2 is a schematic view of a combined cable bridge and cable according to the present application; fig. 3 is a schematic view of a conductive plate of a combined cable bridge according to the present application. A combined cable bridge comprises a bridge groove 1, a conducting plate 2 and a shielding cover 3; the bridge groove 1 is of a U-shaped groove structure, which can be made of plastic materials, so that the structural weight of the bridge is reduced, the bridge groove 1 is composed of two side plates and a groove bottom plate perpendicular to the side plates, a cable is placed at the groove bottom of the bridge groove 1, the two side plates can prevent the cable from sliding off from the side edges, the conductive plate 2 is a copper wire plate and has good conductivity, and is particularly suitable for being used as a grounding wire, the conductive plate 2 can be formed by weaving copper wires into a flat shape and the like, and the conductive plate 2 is arranged at the groove bottom of the bridge groove 1, and can construct shielding areas with different width distances due to the flat structure, so that the shielding area has great flexibility; specifically, the shielding cover 3 is also in a U-shaped groove structure and made of a conductor material, the shielding cover 3 has different specifications, and specifically, the distance between two side plates of the shielding cover 3 is different; correspondingly, the bottom of the bridge groove 1 is provided with a plurality of inserting ports 11, the inserting ports 11 are distributed in parallel and are communicated with the conductive plates 2, namely, the inserting ports 11 are slots of the bridge groove 1, the slot surfaces of the slots are directly communicated with the conductive plates 2, and two side plates of the shielding cover 3 can be inserted into the inserting ports 11 of the bridge groove 1 and are electrically connected with the conductive plates 2 at the bottom.

The application mode of the application is as follows: the strong current cable 5 and the weak current cable 4 are placed in the combined cable bridge in a partitioning mode, the weak current cable 4 is placed right above the conducting plate 2 side by side, the strong current cable 5 is placed on the other side, after placement is completed, the shielding cover 3 is inserted into the insertion port 11 and stretches across the weak current cable 4, the shielding cover 3 and the grounded conducting wire plate form a shielding loop, and interference of the strong current cable 5 on the weak current cable 4 can be effectively isolated; it should be understood that: the plug interface 11 is in interference connection with the side plate of the shielding cover 3, so that the contact stability, namely the stability of electrical connection, can be further ensured; the bridge trough 1 can be fixed in place on the ceiling, beams, etc. by means of U-shaped brackets (not shown in the figures).

It should be noted that: the application relates to a combined cable bridge, which comprises a bridge groove 1, a conducting plate 2 and a shielding cover 3; the bottom of the bridge groove 1 is provided with the conductive plate 2, the conductive plate 2 can be connected with a ground wire to realize grounding, the shielding cover 3 is detachably connected with the bridge groove 1, a hollow cavity structure can be formed, and a weak current cable 4 can be arranged in the cavity, so that the shielding cover 3 is not required to be installed when only the weak current cable 4 or the strong current cable 5 exists, and the use flexibility is improved; when the shielding cover 3 is arranged on the bridge groove 1, the shielding cover 3 is electrically connected with the conducting plate 2, and the shielding cover 3 is a conductor to form a grounded shielding bin, so that the influence of the strong current cable 5 outside the shielding cover 3 on the weak current cable 4 in the shielding cover 3 can be effectively shielded; the conductive plate 2 is arranged in the bottom of the bridge groove 1, so that conductive materials can be saved relatively, the bottom of the bridge groove 1 is provided with a plurality of plug-in ports 11, the plug-in ports 11 are communicated with the conductive plate 2, so that the shielding cover 3 and the conductive plate 2 form a grounded shielding area, the plug-in ports 11 facilitate the matching connection of the shielding covers 3 with different widths, and the corresponding shielding covers 3 can be selected according to the number of actual weak current cables 4; the shielding cover 3 is provided with a plugboard thereon, the plugboard is matched with the plugboard 11, specifically, the plugboard 11 is in interference fit with the plugboard, and the stability of electrical connection can be ensured.

Example 2

Referring to fig. 4 and fig. 5, fig. 4 is a schematic diagram of a separation state of another combined cable bridge conductive plate according to the present application, and fig. 5 is a schematic diagram of a combination state of another combined cable bridge conductive plate according to the present application. The application is different from the basic box of the embodiment 1 in that the conducting plate 2 is detachably connected with the bridge groove 1; specifically, in this embodiment, the bottom of the bridge groove 1 is in a stepped structure, the conductive plate 2 is detachably disposed on a lower step, and the upper plane of the conductive plate 2 is equal to the plane of the higher step; the socket 11 is also arranged on the conductive plate 2, when only the strong current cable 5 is needed to be arranged, the conductive plate 2 is not needed to be installed, when shielding protection is needed to be provided for the weak current cable 4, the conductive plate 2 is embedded into the bridge slot 1, and the weak current cable 4 on the conductive plate 2 is surrounded by the cooperation of the shielding cover 3 and the socket 11, it is noted that in the embodiment, the socket 11 is arranged on the conductive plate 2, namely, the conductive plate 2 is of a copper plate structure with a plurality of parallel notches, in some embodiments, the conductive plate 2 is of a copper plate structure with a lower end, and the partition plates at two sides of the socket 11 are of a plastic structure, so that the contact between the plug plate and the conductive plate 2 is not affected, and the use cost of copper is saved; the detachable conductive plate 2 can save the cost caused by the conductive plate 2 under the condition that the weak current cable 4 is not involved.

Example 3

Please refer to fig. 6 and fig. 7; fig. 6 is a schematic view of splicing a further combined cable bridge according to the application, and fig. 7 is a schematic view of turning a further combined cable bridge according to the application. The embodiment is basically the same as embodiment 1, the conductive plates 2 are detachably connected, specifically, the two ends of the conductive plates 2 are provided with butt joint holes 21, meanwhile, the butt joint holes 21 of the two conductive plates 2 are connected through butt joint columns 22, the butt joint holes 21 have a square groove structure, the butt joint columns 22 are square columns, under the condition that the bridge groove 1 needs to be prolonged, the two ends of the two bridge grooves 1 are butted, the conductive plates 2 are butted, and in order to ensure the stability of the electrical connection between the conductive plates 2, the two conductive plates 2 are clamped by the copper butt joint columns 22; it is to be understood that when turning, an elbow bridge is arranged between the two bridge grooves 1, so that turning of the channel can be realized; when the two ends of the bridge frame groove 1 are provided with the bevel ends, the butt joint of the two bevel ends can also realize turning of the bridge frame groove 1; it should be understood that a connecting piece (not shown in the figure) may be disposed at the connection position of the two bridge grooves 1, and the connecting piece spans the outer walls of the sides of the two bridge grooves 1, and fixes the two ends on the two bridge grooves 1 respectively through bolts, so as to further ensure the stability of connection.

Example 4

Referring to fig. 8, fig. 8 is a schematic view of a combined cable bridge according to the present application. The embodiment is basically the same as embodiment 1, and is different in that the shielding cover 3 may be spliced by a plurality of sections, that is, the shielding cover 3 covered on the same longer bridge slot 1 is formed by splicing a plurality of sections, and it should be noted that, since the shielding cover 3 is formed by splicing a plurality of sections, when the weak current cable 4 under the shielding cover 3 is inspected, the corresponding shielding cover 3 is conveniently lifted, thereby greatly reducing the operation difficulty.

The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and additions to the present application may be made by those skilled in the art without departing from the principles of the present application and such modifications and additions are to be considered as well as within the scope of the present application.

Claims (10)

1. The combined cable bridge is characterized by comprising a bridge groove, a conductive plate and a shielding cover; the bottom of the bridge groove body is provided with the conducting plate, the shielding cover is detachably connected with the bridge groove, and the shielding cover is electrically connected with the conducting plate when being arranged on the bridge groove; the shielding cover and the bottom of the bridge groove form a hollow cavity, and the shielding cover is a conductor.

2. The combined cable bridge according to claim 1, wherein said conductive plate is arranged inside the bottom of said bridge trough, said bottom of said bridge trough is provided with a plurality of sockets, said sockets are in communication with said conductive plate, said shielding cover is provided with a plug board thereon, said plug board is adapted to said sockets.

3. The modular cable bridge of claim 2, wherein the plug interface is an interference fit with the plug board.

4. The modular cable bridge of claim 1, wherein the conductive plate is removably connected to the bridge slot.

5. The modular cable bridge of claim 4, wherein the conductive plate is removably attached to the shield cap.

6. The modular cable bridge of claim 1, wherein the conductive plates are removably connected.

7. The modular cable bridge of claim 6, wherein the conductive plates are provided with mating holes, and wherein the mating holes are connected by mating posts.

8. The modular cable bridge of claim 1, wherein the bridge slot has a beveled end at an end thereof and the shield cap has a beveled end at an end thereof.

9. The modular cable bridge of claim 1, wherein the bridge trough has a plurality of the shield caps removably attached thereto.

10. The modular cable bridge of any one of claims 1 to 9, wherein the bridge slot is made of a non-conductive material.