CN110920466A

CN110920466A - Anchor section type automatic cut-off type bus bar of flood-proof door

Info

Publication number: CN110920466A
Application number: CN201911284440.3A
Authority: CN
Inventors: 张灵芝; 何杨
Original assignee: Hunan Vocational College of Railway Technology
Current assignee: Hunan Vocational College of Railway Technology
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-03-27

Abstract

The invention discloses an automatic cut-off type busbar, which comprises a fixed busbar, a disconnectable busbar, a rotary joint, a fixed base and an action device, wherein the fixed busbar and the disconnectable busbar are connected through the rotary joint, and the disconnectable busbar is arranged on the fixed base through the action device. The bus bar can ensure that the mechanical connection and the electrical connection of each fracture are reliable, the device can be manually and quickly restored to a normal state after being disconnected, the restoration process is simple and easy to operate, and no loss piece is used in the restoration process.

Description

Anchor section type automatic cut-off type bus bar of flood-proof door

Technical Field

The invention relates to the technical field of flood gates, in particular to an anchor section type automatic cut-off bus bar of a flood gate.

Background

When a subway tunnel passes through a river reach, flood gates are required to be arranged at two ends of an interval tunnel, and when major dangerous situations such as sudden heavy water or tunnel collapse occur, the flood gates are required to be closed to ensure the safety of equipment and personnel. The rigid contact net erected along the subway line makes the effective and timely closing of the flood gate difficult. At present, the design of a domestic subway overhead line system adopts a small anchor section transition mode at a flood gate passing through a tunnel. When the flood gate is started and closed, contact network operators need to enter the tunnel to dismantle the small anchor section of the contact network, the time is long, and the personal safety cannot be guaranteed. In order to ensure that when the flood gate is started and closed in a sudden and serious dangerous situation, the rigid contact net can realize automatic disconnection without influencing the normal closing of the flood gate, and simultaneously ensure the personal safety without the need of operators entering a tunnel for dismantling or operating; therefore, the development and application of the device for automatically disconnecting the rigid contact net at the flood gate are necessary.

Disclosure of Invention

The invention aims to solve the technical problems of complexity, high maintenance difficulty and large potential safety hazard of the existing flood gate, and provides an anchor section type automatic cut-off bus bar of the flood gate.

The purpose of the invention is realized by the following technical scheme:

the anchor section type automatic cut-off type bus bar of the flood gate comprises a fixed bus bar, a disconnectable bus bar, a rotary joint, a fixed base and an action device, wherein the fixed bus bar is connected with the disconnectable bus bar through the bus bar rotary joint, and the disconnectable bus bar is arranged on the fixed base through the action device.

Further, the action device comprises an action connecting rod, a middle anchor wire clamp, a fixed insulator, a center anchor joint insulator and a pulley, wherein the pulley is placed in an inclined channel steel below the fixed insulator through the action connecting rod, the tail end of the action connecting rod is designed into a flat steel clamping block, the pulley is clamped inside the writing channel steel and used for being pushed, and the action connecting rod movable center is connected with a fixed lower channel steel to achieve a lever principle. One end of the central anchor insulator is connected with the special pulley and is connected with the middle anchor wire clamp, and the middle anchor wire clamp is connected with the disconnectable busbar. When the flood-proof door presses down the action connecting rod, the clamping blocks of the pulleys in the left channel steel and the right channel steel are respectively used for jacking, moving downwards and moving upwards, and the pulleys slide along the inclined channel steel to realize disconnection of the busbar. The action device of the invention has no direct electrical and mechanical locking relation with the flood gate, the signal and the BAS system, and the contact net can be automatically disconnected only by the action of the action mechanism of the device which is caused by the actual closing and falling of the flood gate.

Further, the fixed base is installed on the top of the tunnel.

Furthermore, the sections of the fixed busbar and the disconnectable busbar are in oblique butt joint, so that the problem of interference at the fracture when the disconnectable busbar rotates is solved. Meanwhile, the mortise and tenon structure connection mode can also effectively control the transverse dislocation and the longitudinal displacement between the two busbars. Preferably, the bevel angle of the cross section of the fixed busbar and the disconnectable busbar is 47 degrees, so that the busbar interface gap can be theoretically 0mm, and seamless butt joint is realized.

Furthermore, fixed busbar and the inside hollow structure that is of breakable busbar install mortise and tenon at fixed busbar and breakable busbar section junction, adopt the elastic pressure that interference fit produced to obtain the effect of fastening connection between mortise and tenon.

Furthermore, the mortise and the tenon which are used for fixing the busbar and can be used for mounting the disconnectable busbar are of copper structures, the mortise and the tenon are respectively connected with external electric connection guides, and can be matched with external electric connection wires on the top end of the busbar to solve the problem of electric connection at the fracture of the busbar and the contact wires.

Furthermore, the connection position of the sections of the fixed bus bar and the disconnectable bus bar adopts a closed structure, so that the internal dirt of the device caused by the dust deposition in the tunnel can be effectively prevented, and the maintenance workload is reduced. Meanwhile, the simple appearance and the proper size enable the parts below the busbar waist line to smoothly pass through the paying-off trolley, and the line changing construction efficiency is improved.

Furthermore, the breakable joint of the breakable bus bar adopts an anchor section type structure, so that the mechanical wear of the breakable joint of the bus bar is greatly reduced, and the influence of a gap generated at the joint of the section head on the locomotive current taking is greatly reduced. The weight of busbar self has excessively been reduced to anchor section formula, becomes low to mechanical accuracy requirement, overhauls and the construction of trading the line is more simple and convenient.

Furthermore, the surfaces of the fixed bus bar and the disconnectable bus bar are also covered with elastic pressing plates, so that the impact force generated when the bus bar falls can be effectively buffered, and the lead and the bus bar are protected from being damaged by collision.

Compared with the prior art, the beneficial effects are:

the action device adopted by the invention independently exists in the contact network system, and has no direct electrical and mechanical locking relation with the flood gate, the signal and the BAS system, the action of the device only depends on the actual closing and falling of the flood gate to drive the action mechanism of the device to act to automatically disconnect the contact network, and when the flood gate is started and closed, the rigid contact network can automatically disconnect in a flood gate section without personnel interference.

The bus bar can ensure that the mechanical connection and the electrical connection of each fracture are reliable, the device can be manually and quickly restored to a normal state after being disconnected, the restoration process is simple and easy to operate, and no loss part is used in the restoration process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of an actuator according to the present invention;

FIG. 3 is a cross-sectional connection schematic of the present invention.

The tunnel roof, the flood gate 2, the fixed busbar of 3, 4 rotary joint, 5 disconnectable busbars, 6 action devices, 7 unable adjustment base, 8 fixed insulators, 9 action connecting rods, 10 central anchor insulators, 11 middle anchor clamps, 12 pulleys, 13 mortise and tenon, 14 external electric connection direction, 15 elastic pressing plates.

Detailed Description

The following examples are further explained and illustrated, but the present invention is not limited in any way by the specific examples. Unless otherwise indicated, the methods and equipment used in the examples are conventional in the art and all materials used are conventional commercially available materials.

Example 1

Referring to fig. 1 to 3, the anchor type automatic disconnecting bus bar of the flood gate includes a fixed bus bar 3, a disconnectable bus bar 5, a rotary joint 4, a fixed base 7, and an actuating device 6. The fixed bus bar 3 is connected with the breakable bus bar 5 through a bar rotating joint 4, the section of the fixed bus bar 3 is butted with the section of the breakable bus bar 5 at an oblique port of 47 degrees, and the surface is further covered with an elastic pressure plate 15. The disconnectable joint of the disconnectable busbar 3 is of an anchor segment type structure and is mounted on a fixed base 7 through an actuating device 6, and the fixed base 7 is mounted on the tunnel roof 1.

The action device 6 comprises an action connecting rod 9, a fixed insulator 8, a middle anchor wire clamp 11, a center anchor insulator 10 and a pulley 12, wherein the fixed insulator 8 is connected with the fixed base 7 to play a role of a lever fulcrum. The pulley 12 is placed in an oblique channel steel below the fixed insulator 8 through the action connecting rod 9, the tail end of the action connecting rod 9 is designed to be a flat steel clamping block and clamped inside the channel steel to be used for jacking the pulley 12, and the moving center of the action connecting rod 9 is connected with the channel steel of the fixed insulator 8 to achieve a lever principle. One end of the central anchor insulator 10 is connected with a special pulley and is connected with a middle anchor wire clamp 11, and the middle anchor wire clamp 11 is connected with the disconnectable busbar 5. When the flood gate 2 presses down the action connecting rod 9, the clamping blocks used for jacking the pulleys 12 in the left channel steel and the right channel steel respectively move downwards and upwards, the pulleys slide along the inclined channel steel to realize disconnection of the busbar, and the distance between the pulleys and the flood gate is about 22-25 mm.

Fixed busbar 3 adopts closed structure with 5 row section junctions of can breaking off the busbar, and inside is hollow structure, installs mortise and tenon 13 in fixed busbar 3 and 5 row section junctions of can breaking off the busbar, and mortise and tenon 13 are copper structure, and outside electricity is connected respectively to mortise and tenon 13 and leads 14, can cooperate the outside electricity connecting wire in busbar top, solves the electrical connection problem of busbar, contact wire cut-off department.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The anchor section type automatic cut-off type bus bar of the flood gate is characterized by comprising a fixed bus bar, a disconnectable bus bar, a rotary joint, a fixed base and an action device, wherein the fixed bus bar is connected with the disconnectable bus bar through the bus bar rotary joint, and the disconnectable bus bar is installed on the fixed base through the action device.

2. The anchor-type automatic disconnecting bus bar of the flood gate according to claim 1, wherein the actuating device comprises an actuating connecting rod, a fixed insulator, a middle anchor wire clamp, a fixed insulator, a center anchor insulator and a pulley, the pulley is placed in an inclined channel below the fixed insulator through the actuating connecting rod, the tail end of the actuating connecting rod is designed to be a flat steel clamping block and clamped inside the writing channel for abutting against the pulley, the movable center of the actuating connecting rod is connected with the fixed lower channel steel to realize a lever principle, one end of the center anchor insulator is connected with a special pulley and is connected with the middle anchor wire clamp, and the middle anchor wire clamp is connected with the disconnectable bus bar.

3. The anchor-type automatic cutout bus bar for flood gates according to claim 1, wherein said fixed base is installed on the top of a tunnel.

4. The anchor-type automatic disconnect bus of claim 1, wherein the fixed bus and the disconnectable bus are diagonally butted in cross-section.

5. The anchor-type automatic cutoff busbar for the flood gate according to claim 1, wherein said fixed busbar and said disconnectable busbar are hollow, and a mortise and a tenon are installed at the junction of the sections of the fixed busbar and the disconnectable busbar.

6. The anchor-type automatic cutoff busbar for a flood gate according to claim 5, wherein said fixed busbar and said disconnectable busbar are mounted with a mortise and tenon of copper construction, said mortise and tenon being connected to respective external electrical conductors.

7. The anchor-type automatic disconnect bus bar of claim 5, wherein the junction of the fixed bus bar and the disconnectable bus bar sections is of a closed configuration.

8. The anchor-type automatic disconnect bus bar of claim 1, wherein the disconnectable connectors of the disconnectable bus bar are of an anchor-type construction.

9. The anchor-type automatic disconnect bus bar of claim 1, wherein said fixed bus bar and disconnectable bus bar surfaces are further covered with resilient pressure plates.