CN211238825U

CN211238825U - Cable becomes end current drainage cabinet

Info

Publication number: CN211238825U
Application number: CN201922181914.3U
Authority: CN
Inventors: 郭丰明
Original assignee: Shenzhen Keanda Rail Transit Technology Co ltd; Shenzhen Keanda Electronic Technology Co ltd
Current assignee: Shenzhen Keanda Rail Transit Technology Co ltd; Shenzhen Keanda Electronic Technology Co ltd
Priority date: 2019-12-07
Filing date: 2019-12-07
Publication date: 2020-08-11
Anticipated expiration: 2029-12-07

Abstract

The utility model relates to a cable end-forming drainage cabinet, which comprises a signal cable, a cable end-forming drainage cabinet and a cable core, wherein the signal cable comprises a sheath, an armor layer, an insulating layer, an aluminum sheath layer, a cable belting and a cable core from outside to inside; the cabinet body is formed by hermetically connecting a front panel, a rear panel, a left panel, a right panel, a top plate and a detachable bottom plate, a plurality of through holes matched with the signal cables are formed in the bottom plate, an inlet is formed in one side of each through hole, an outlet is formed in the other side of each through hole, and the signal cables penetrate into the cabinet body from the inlet and penetrate out of the outlet; the wire binding frame comprises wire binding rods arranged parallel to the front panel and fixing rods connected with at least one wire binding rod and arranged parallel to the left panel, and the signal cables are fixed with the wire binding rods in rows in an inverted U shape; the grounding copper bar is used for connecting a wiring end of the grounding grid; and the end forming box is sleeved and fixed on the signal cable and is used for electrically connecting the armor layer and/or the aluminum sheath layer to the grounding copper strip.

Description

Cable becomes end current drainage cabinet

Technical Field

The utility model relates to a cable becomes to hold technical field, especially relates to a cable becomes end current drainage cabinet.

Background

In thunderstorm weather, if a thunder falls above or near a cable line, strong lightning current can also be induced to the cable line along the line, and large currents such as traction backflow, lightning current and the like are directly led into a mechanical room from the outdoor line along the line, so that damage to distribution panel equipment, heating short circuit of indoor cables and the like is easily caused, and driving safety is affected. The cable terminating technology is to adopt a drainage grounding mode to ground external current so as to prevent the external current from entering a mechanical chamber. The end-forming drainage cabinet is a cabinet body which intensively grounds a signal cable and is convenient to maintain.

The existing end-forming drainage cabinet generally adopts an up-in-down-out mode, so that the dustproof and waterproof problems are difficult to solve, dust and water can interfere with the stability of a signal cable, particularly, rainwater is easy to corrode critical components of an end-forming box, a lead terminal and a grounding copper strip in the end-forming drainage cabinet, and drainage performance is influenced.

On the other hand, the existing cable terminating technology only considers drainage grounding and neglects fire prevention, a drainage piece in a terminating box can be spontaneously combusted in long-time work, the terminating box is ignited and diffused, accidents are caused, and particularly when the incoming current is power frequency current, the power frequency current is long in duration and can continuously act on the drainage piece in the terminating box, and the drainage piece is caused to be heated and combusted.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a dustproof and waterproof cable terminating drainage cabinet.

In order to solve the technical problem, the utility model discloses a technical scheme be: a cable end-to-end drainage cabinet comprises a signal cable, a cable end-to-end drainage cabinet and a cable end-to-end drainage cabinet, wherein the signal cable comprises a sheath, an armor layer, an insulating layer, an aluminum sheath layer, a cable wrapping tape and a wire core from outside to inside; the cabinet body is formed by hermetically connecting a front panel, a rear panel, a left panel, a right panel, a top plate and a detachable bottom plate, a plurality of through holes matched with the signal cables are formed in the bottom plate, an inlet is formed in one side of each through hole, an outlet is formed in the other side of each through hole, and the signal cables penetrate into the cabinet body from the inlet and penetrate out of the outlet; the wire binding frame comprises wire binding rods arranged parallel to the front panel and fixing rods connected with at least one wire binding rod and arranged parallel to the left panel, and the signal cables are fixed with the wire binding rods in rows in an inverted U shape; the grounding copper bar is used for connecting a wiring end of the grounding grid; and the end forming box is sleeved and fixed on the signal cable and is used for electrically connecting the armor layer and/or the aluminum sheath layer to the grounding copper strip.

Furthermore, the grounding copper strip comprises a transverse strip, a side strip and a vertical strip, the transverse strip is parallel to the binding rod, the side strip is parallel to the fixing rod, the side strip is connected with at least one transverse strip, the vertical strip is connected with the transverse strip or the side strip and is grounded, and the end forming box is used for connecting the armor layer and/or the aluminum sheath layer to the transverse strip in a conductive manner.

Furthermore, each end forming box outer cover is provided with an electric arc isolation box, and the electric arc isolation box is provided with a through hole for the signal cable to penetrate through.

Furthermore, the roof extends to the periphery and forms the apron that keeps off the rain.

Furthermore, an automatic fire extinguisher is arranged above the end forming box in the cabinet body, and the automatic fire extinguisher is connected with a sensor.

Furthermore, a lead terminal is arranged on the end forming box, one end of the lead terminal is connected with a drainage piece connected with the armor layer and/or the aluminum sheath layer, and the other end of the lead terminal is in threaded connection with the grounding copper strip.

Furthermore, a plurality of wire binding holes are formed in the wire binding rod at intervals, and the signal cable is fixed with the wire binding rod through the wire binding holes.

Furthermore, fireproof mud is adhered to the through hole and surrounds the signal cable, so that a closed space is formed in the cabinet body.

Furthermore, the front panel consists of two hinge door panels.

Furthermore, a base is arranged below the bottom plate.

The beneficial effects of the utility model reside in that: the cabinet body front panel, rear panel, left panel, right panel, roof and bottom plate seal enclose, and the bottom plate can be dismantled, and signal cable adopts the mode of going into down going out to be the type of falling U and sets up in the cabinet is internal, and dustproof and waterproof effect is good.

Drawings

Fig. 1 is a schematic structural diagram of a cable terminating drainage cabinet according to an embodiment of the present invention;

fig. 2 is a schematic structural view of another direction of a cable terminating drainage cabinet according to an embodiment of the present invention;

fig. 3 is a schematic view of a connection structure between an end forming box and a horizontal bar of a cable end forming drainage cabinet according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an end forming box of a cable end forming drainage cabinet according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a signal cable of a cable terminating drainage cabinet according to an embodiment of the present invention.

Description of reference numerals:

100. a signal cable; 110. a skin; 120. an armor layer; 130. an insulating layer; 140. an aluminum jacket layer;

150. a cable tie; 160. a wire core; 200. a cabinet body; 210. a front panel; 220. a rear panel;

230. a left panel; 240. a right panel; 250. a top plate; 260. a base plate; 261. a through hole;

300. a wire bundling frame; 310. a wire binding rod; 311. a wire binding hole; 320. fixing the rod; 400. a grounding copper bar;

410. a horizontal bar; 420. side strips; 430. vertical bars; 500. forming an end box; 510. a lead terminal;

600. an arc isolation box; 700. a base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description, with reference to the accompanying drawings and embodiments, will explain the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 5, a cable terminating drainage cabinet includes a signal cable 100, the signal cable 100 includes, from outside to inside, a sheath 110, an armor layer 120, an insulating layer 130, an aluminum sheath layer 140, a cable tape 150, and a wire core 160; the cabinet body 200 is formed by hermetically connecting a front panel 210, a rear panel 220, a left panel 230, a right panel 240, a top plate 250 and a detachable bottom plate 260, a plurality of through holes 261 matched with the signal cables 100 are arranged on the bottom plate 260, one side of each through hole 261 is an inlet, the other side of each through hole is an outlet, and the signal cables 100 penetrate into the cabinet body 200 from the inlets and penetrate out of the outlets; the wire binding frame 300 comprises wire binding rods 310 arranged parallel to the front panel 210 and fixing rods 320 which are connected with at least one wire binding rod 310 and arranged parallel to the left panel 230, wherein the signal cables 100 are fixed with the wire binding rods 310 in an inverted U-shaped row; a ground copper bar 400 serving as a terminal for connecting a ground grid; and an end forming box 500 sleeved and fixed on the signal cable 100 and conductively connecting the armor layer 120 and/or the aluminum sheath layer 140 to the grounding copper strip 400.

The cabinet body 200 is formed by sealing a front panel 210, a rear panel 220, a left panel 230, a right panel 240, a top plate 250 and a bottom plate 260, the bottom plate 260 can be disassembled, the signal cable 100 is arranged in the cabinet body 200 in an inverted U shape in a mode of downward entering and downward exiting, and the dustproof and waterproof effects are good.

Referring to fig. 1 and 2, the grounding copper bar 400 includes a horizontal bar 410, a side bar 420 and a vertical bar 430, the horizontal bar 410 is disposed parallel to the cable tie 310, the side bar 420 is disposed parallel to the fixed rod 320, the side bar 420 is connected to at least one horizontal bar 410, the vertical bar 430 is connected to the horizontal bar 410 or the side bar 420 and grounded, and the end box 500 is used to conductively connect the armor layer 120 and/or the aluminum sheath layer 140 to the horizontal bar 410. The fixing and the connection of the grounding copper strip 400 are facilitated, and the strength of the grounding copper strip 400 is increased.

Referring to fig. 1 and 2, each end forming box 500 is covered with an arc isolation box 600, and the arc isolation box 600 is provided with a through hole 261 for the signal cable 100 to pass through. The arc isolation boxes 600 are arranged outside the end forming boxes 500, so that arcs can be isolated, the fireproof effect is better, and the phenomenon that one end forming box 500 is spread to the adjacent end forming box 500 when catching fire is avoided.

In particular, the front panel 210, the rear panel 220, the left panel 230, the right panel 240, the top panel 250 and the bottom panel 260 are made of fireproof materials, and are simple and can directly adopt the existing fireproof plates on the market.

Referring to fig. 1 and 2, the wire binding frame 300 is provided with a plurality of layers in a height direction, and the arc insulation box 600 is fixed between two wire binding rods 310 adjacent in height. The cable tie 310 is provided with a plurality of layers, so that the strength is increased, and the elastic restoring force generated when the signal cable 100 is bent in the cabinet 200 can be adapted.

Referring to fig. 1 and 2, the top plate 250 extends around to form a rain shield. Strengthen the defense effect, avoid rainwater interference signal to corrode cabinet 200 internal plant.

Referring to fig. 1 and 2, the end box 500 is disposed adjacent to the inlet. The terminating box 500 is disposed near the entrance, so that an external current can be better prevented from entering the mechanical chamber, and meanwhile, the signal cable 100 at the entrance is generally straight, and is convenient to install. Typically, the end-forming cartridges 500 are arranged in rows and the arc isolation cartridges 600 are connected in corresponding rows.

As an optimized mode of the utility model, an automatic fire extinguisher is arranged above the end forming box 500 in the cabinet body 200 and is connected with a sensor. It will be appreciated that the sensor may be a temperature sensor, a smoke sensor or a flame sensor. It is understood that the automatic fire extinguisher is generally selected from a dry chemical fire extinguisher or a carbon dioxide fire extinguisher.

Referring to fig. 3, a lead terminal 510 is disposed on the terminating box 500, one end of the lead terminal 510 is connected to the current guiding member 520 connected to the armor layer 120 and/or the aluminum sheath layer 140, and the other end is screwed to the grounding copper bar 400. It will be appreciated that the lead terminals 510 are generally screwed with the cross bar 410. The strength of the lead terminal 510 is much higher than that of the drainage member 520, and the lead terminal 510 can avoid breaking, so that stability and safety are achieved.

Referring to fig. 1 and 2, a plurality of cable holes 311 are formed at intervals on the cable bar 310, and the signal cable 100 is fixed to the cable bar 310 through the cable holes 311. Through the binding hole 311 and objects such as a binding tape, a binding rope, a binding wire and the like, the signal cable 100 is fixed in rows, the fixation is stable, the sequence is clear, and the maintenance is convenient.

As an optimized mode of the present invention, the through hole 261, surrounding the signal cable 100, is adhered with fire-proof mud, so as to form a closed space in the cabinet body 200. Set up fire prevention mud and seal through-hole 261, avoid flame to spill over, further improve fire prevention effect. Meanwhile, the cabinet body 200 is integrally sealed, and preferably, the sealing grade of the cabinet body 200 is not lower than the IP65 protection grade.

Referring to fig. 1, the front panel 210 is formed of two hinged door panels. The cabinet 200 is conveniently opened for maintenance.

Referring to fig. 1, a base is disposed under the bottom plate 260. The base is provided to facilitate the signal cable 100 to penetrate into the cabinet 200 from the bottom plate 260.

Referring to fig. 4, fig. 4 is a diagram illustrating an embodiment of the terminating box 500 of the present invention, and the terminating box 500 of the present invention is not limited to this embodiment, and is only illustrated as an example. Two drainage members 520 are provided in the terminating box 500, the two drainage members 520 are connected to the armor layer 120 and the aluminum sheath layer 140, respectively, and then connected to the lead terminals 510, and the lead terminals 510 are connected to the cross bar 410. The current collector 520 is generally made of a metal material with high electrical conductivity, preferably copper, and is generally in the shape of a rope or a belt, preferably a belt.

To sum up, the utility model provides a pair of cable one-tenth end current drainage cabinet has improved dustproof and waterproof effect to compromise fire prevention and waterproof performance, cabinet body overall seal is provided with electric arc isolation box outside one-tenth end box, can keep apart electric arc, has avoided one of them one-tenth end box in the time of catching fire scatter to adjacent one-tenth end box.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims

1. A cable terminating cabinet comprising:

the signal cable comprises a sheath, an armor layer, an insulating layer, an aluminum sheath layer, a cable wrapping tape and a wire core from outside to inside;

the cabinet body is formed by hermetically connecting a front panel, a rear panel, a left panel, a right panel, a top plate and a detachable bottom plate, a plurality of through holes matched with the signal cables are formed in the bottom plate, an inlet is formed in one side of each through hole, an outlet is formed in the other side of each through hole, and the signal cables penetrate into the cabinet body from the inlet and penetrate out of the outlet;

the wire binding frame comprises wire binding rods arranged parallel to the front panel and fixing rods connected with at least one wire binding rod and arranged parallel to the left panel, and the signal cables are fixed with the wire binding rods in rows in an inverted U shape;

the grounding copper bar is used for connecting a wiring end of the grounding grid;

and the end forming box is sleeved and fixed on the signal cable and is used for electrically connecting the armor layer and/or the aluminum sheath layer to the grounding copper strip.

2. A cable termination cabinet according to claim 1, wherein the grounding copper bars comprise a cross bar, side bars and a vertical bar, the cross bar is arranged parallel to the wire binding rod, the side bars are arranged parallel to the fixing rod, the side bars are connected with at least one of the cross bars, the vertical bar is connected with the cross bar or the side bars and grounded, and the termination box is used for connecting the armor layer and/or the aluminum sheath layer to the cross bar in an electrically conductive manner.

3. A cable terminating cabinet as claimed in claim 1, wherein each of said terminating box housings is provided with an arc insulating box, said arc insulating box being provided with a through hole for passing said signal cable therethrough.

4. A cable termination cabinet as claimed in claim 1, wherein the roof extends around to form a rain shield.

5. A cable termination cabinet as claimed in claim 1, wherein an automatic fire extinguisher is provided in the cabinet above the termination box, the automatic fire extinguisher having a sensor connected thereto.

6. A cable terminating cabinet as claimed in claim 1, wherein a lead terminal is provided on the terminating box, one end of the lead terminal is connected to a drainage member connected to the armor layer and/or the aluminum sheath layer, and the other end is connected to the grounding copper bar by screw.

7. A cable terminating drainage cabinet as claimed in claim 1, wherein the wire binding rod is provided with a plurality of wire binding holes arranged at intervals, and the signal cable is fixed with the wire binding rod through the wire binding holes.

8. A cable termination cabinet as claimed in claim 1, wherein fire clay is adhered to the through-holes around the signal cables to form an enclosed space within the cabinet.

9. A cable termination cabinet as claimed in claim 1, wherein the front panel is formed from two hinged door panels.

10. A cable termination cabinet as claimed in claim 1, wherein a base is provided beneath the base plate.