Mining explosion-proof intrinsic safety type comprehensive access gateway

Abstract

The utility model provides a mining explosion-proof intrinsic safety type integrated access gateway, and belongs to the technical field of mining communication equipment. The problems that an existing intrinsic safety type gateway and a conventional gateway are insufficient in protection means, single in applicable working condition and the like are solved. Comprising a box body, the box body is internally provided with an explosion-proof cavity and an intrinsic safety cavity which are separated, and electric appliances are connected between the explosion-proof cavity and the intrinsic safety cavity through a through-wall terminal; a movable wiring terminal is mounted on the bottom plate in the explosion-proof cavity, a power supply mounting plate is also fixed on the bottom plate in the explosion-proof cavity, a power supply plate and a power supply module are fixed on the power supply mounting plate, a power supply protection plate is arranged at the upper part of the power supply module, and the power supply protection plate is fixed on a power supply heat dissipation plate; a switch module mounting plate is fixed on the bottom plate in the intrinsic safety cavity, a switch interface plate is connected above the switch module mounting plate, and a comprehensive gateway switch mainboard and an Ethernet switch module are connected above the switch interface plate; the utility model is applied to underground communication.

Description

Technical Field

[0001] The utility model provides a mine-used flameproof intrinsically safe integrated access gateway, belonging to the technical field of mine-used communication equipment. Background Art

[0002] The flameproof and intrinsically safe integrated access gateway for mines (hereinafter referred to as the gateway) is a flameproof and intrinsically safe device designed specifically for underground coal mine environments, in accordance with the new mine safety monitoring standard and relevant coal industry standards. Its primary functions include interconnecting various monitoring systems, performing underground Industrial Ethernet protocol conversion, and directly connecting to safety monitoring sensors. It also forwards and transmits underground coal mine monitoring information, as well as providing surface monitoring and dispatching. This gateway not only effectively handles the complex underground environment but also boasts powerful communication and data processing capabilities. It aggregates various fieldbus information and data to the mine backbone communication network via mine Industrial Ethernet or fiber optic transmission. The gateway offers stable and reliable performance, easy operation and maintenance, and strong conversion capabilities, making it easy to install underground in coal mines. The flameproof and intrinsically safe integrated access gateway for mines is an indispensable communication device for underground environments like coal mines. Its powerful functionality and reliable performance strongly support safe production and efficient operations.

[0003] However, most of the current integrated access gateways are intrinsically safe, lacking protection measures when equipment failures cause explosions; conventional gateways are applicable to a single working condition and are only used in working faces without gas risks; mining products rely on cables to transmit power at the working face, which has high installation costs and inconvenient maintenance; the working face has harsh working conditions, making it difficult to understand the equipment's usage status in detail and difficult to restore the equipment status in a timely manner; conventional gateways have poor functionality and require other equipment to supplement functional requirements, which increases space occupancy and product maintenance costs. Utility Model Content

[0004] In order to solve the problems of insufficient protection means, single applicable working conditions, high installation and maintenance costs in existing intrinsically safe gateways and conventional gateways, the utility model proposes a mine-use flameproof intrinsically safe integrated access gateway, the purpose of which is to improve the structure of the existing intrinsically safe gateway so as to achieve its safe and efficient application underground.

[0005] The technical solution adopted by the utility model is: a flameproof intrinsically safe integrated access gateway for mining, comprising a box body, wherein a flameproof chamber and an intrinsically safe chamber are separated and provided inside the box body, wherein the flameproof chamber and the intrinsically safe chamber are connected to each other via through-wall terminals, a flameproof chamber cover is fixed on the top of the flameproof chamber, and an intrinsically safe chamber cover is fixed on the top of the intrinsically safe chamber;

[0006] A movable terminal block is installed on the bottom plate of the explosion-proof chamber. A power supply mounting plate is also fixed on the bottom plate of the explosion-proof chamber. A power supply board and a power module are fixed on the power supply mounting plate. A power supply protection plate is provided on the upper portion of the power module. The power supply protection plate is fixed on the power supply heat sink. The top plate portion of the upper portion of the rear plate in the explosion-proof chamber is connected to the dual-way power supply module heat sink via fasteners. The dual-way power supply module heat sink is connected to the dual-way power supply module protection plate. The dual-way power supply board is installed below the dual-way power supply module protection plate.

[0007] A switch module mounting plate is fixed to the bottom plate of the intrinsically safe cavity, a switch interface plate is connected above the switch module mounting plate, an integrated gateway switch mainboard and an Ethernet switch module are connected above the switch interface plate, a switch module heat sink is connected above the Ethernet switch module, an indicator light plate is fixed to the top plate on the upper side plate of the intrinsically safe cavity, an insulating pad is fixed to the indicator light plate, and a flat-head light guide column is installed on the insulating pad;

[0008] An optical cable introduction device is installed on the back of the flameproof cavity, and a socket optical cable assembly, a first connector, a second connector and a third connector are installed on the back of the intrinsically safe cavity.

[0009] Furthermore, the explosion-proof cavity and the main body cavity are separated by a cavity partition plate, a through hole is opened on the cavity partition plate, a partition plate repair welding circular column is passed through the through hole, and the through-wall terminal is fixed on the partition plate repair welding circular column.

[0010] Furthermore, the dual-circuit power supply board is fixed on the power supply mounting board close to one side of the rear plate.

[0011] Furthermore, sealing grooves are opened on the top plates of the explosion-proof cavity and the intrinsically safe cavity, and sealing rings are arranged in the sealing grooves. The explosion-proof cavity cover plate and the intrinsically safe cavity cover plate respectively squeeze the sealing rings and are fixed to the explosion-proof surface of the top plate through fasteners.

[0012] Furthermore, a window hole is opened on the intrinsically safe cavity cover plate, and the window hole is connected to the indicator light board, the insulating pad, and the flat-head light guide column in sequence through fasteners.

[0013] Furthermore, an observation window for observing the status of the indicator light is provided on the front of the intrinsically safe chamber.

[0014] Furthermore, the first connector and the second connector are POE power supply ports of the controller, and the third connector is a POE power supply port of the camera; the socket optical cable assembly is a switch optical cable port.

[0015] Furthermore, the indicator light board is provided with a gigabit indicator light, a 100M indicator light, an optical port indicator light and an electrical port indicator light.

[0016] Furthermore, each electrical port requires two indicator lights, one for indicating the connection status and one for indicating the transmission speed.

[0017] Furthermore, the box body is welded with Q235A steel plates.

[0018] The beneficial effects of the present invention compared to the prior art are:

[0019] 1. The gateway of this utility model has dual protection functions of explosion-proof and intrinsic safety, and can be used safely in explosive environments underground. This utility model is a flameproof and intrinsically safe device. When a fault occurs inside the device and an explosion occurs, the flameproof casing can withstand the explosion pressure without damage and will not spread the explosion to the surrounding environment.

[0020] 2. The enclosure features a single, integrated structure with separate explosion-proof and intrinsically safe chambers, connected via through-wall terminals. The housing is constructed of Q235A steel, offering excellent strength and corrosion resistance, making it suitable for the harsh underground environment. The mining explosion-proof and intrinsically safe integrated access gateway is suitable for underground coal mines with explosive mixtures, as well as gold and iron mines, and other high-temperature, high-humidity, and highly polluting industrial and mining enterprises.

[0021] 3. This utility model adopts POE power supply. It obtains power through Ethernet cable. It simplifies wiring, centralizes power supply, reduces installation costs, and facilitates management and maintenance. It has strong compatibility and a high degree of standardization of power interface.

[0022] 4. The LED indicator display window set in this utility model has a status indication function, and is integrated with a gigabit switch, which has an abnormal 10s self-recovery function;

[0023] 5. The utility model supports multiple communication interfaces and protocols, and realizes complex communication and data processing tasks. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 It is a structural diagram of the utility model;

[0026] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0027] In the figure: 1 is the bottom plate, 2 is the side plate, 3 is the top plate, 4 is the sealing ring, 5 is the chamber partition, 6 is the back plate, 7 is the wall terminal, 8 is the explosion-proof chamber cover, 9 is the intrinsically safe chamber cover, 11 is the power module, 12 is the power supply mounting plate, 13 is the power supply board, 14 is the power supply protection board, 15 is the power supply heat sink, 16 is the dual-way power supply board, 17 is the dual-way power module heat sink, 18 is the partition repair welding circular column, 19 is the terminal block, 21 is the switch module mounting plate, 22 is the switch interface board, 23 is the integrated gateway switch mainboard, 24 is the Ethernet switch module, 25 is the switch module heat sink, 26 is the indicator light board, 27 is the insulating pad, 28 is the flat-head light guide column, 31 is the optical cable introduction device, 32 is the socket optical cable assembly, 33 is the first connector, 34 is the second connector, and 35 is the third connector. DETAILED DESCRIPTION

[0028] like Figure 1 and 2 As shown, the utility model provides a flameproof and intrinsically safe integrated access gateway for mining, including a flameproof and intrinsically safe box. The box is an integrated structure, and a separated flameproof cavity and an intrinsically safe cavity are arranged inside the box. The flameproof cavity and the intrinsically safe cavity are connected by a through-wall terminal 7.

[0029] Specifically, such as Figure 1 As shown, the two side panels 2, the cavity partition 5, and the rear panel 6 are welded to the bottom panel 1 and the top panel 3 respectively, forming two semi-enclosed spaces. Figure 2 The left cavity in the figure is a flameproof cavity, and the right cavity is an intrinsically safe cavity. A flameproof cavity cover plate 8 is fixed on the top of the flameproof cavity, and an intrinsically safe cavity cover plate 9 is fixed on the top of the intrinsically safe cavity.

[0030] Two welded female studs are welded to the bottom plate 1 in the flameproof chamber. Two linear guide rails are fixed to the female studs. The guide rails are connected to a fixed plate, which is then fixed to an end plate connected to a terminal block 19. The bottom plate 1 in the flameproof chamber is tapped with threaded holes, which are screwed with studs. The power supply mounting plate 12 is fixed via the studs. The power supply mounting plate 12 is connected to the power supply board 13 and the AC-DC power supply module 11 in sequence. The power supply module 11 has a power supply protection board 14 on top. The power supply protection board 14 is fixed to the power supply heat sink 15. The power heat sink 15 is fixed to the top plate 3 welded to the top of the side plate 2 via fasteners. A total of three power supply modules 11 are arranged in this manner. The top plate 3 above the rear plate 6 in the flameproof chamber is connected to a dual-circuit power supply module heat sink 17 via fasteners. The dual-circuit power supply module heat sink 17 is connected to the dual-circuit power supply module protection board. Below the dual-circuit power supply module protection board are two AC-DC power supply modules 11 and a dual-circuit power supply board 16. The dual-circuit power supply board 16 is fixed to the power supply mounting plate 12 near the side of the rear plate 6.

[0031] A through hole is opened on the cavity partition plate 5 , and the partition plate repair welding circular column 18 passes through the through hole, and its middle part is welded to the cavity partition plate 5 , and the through-wall terminal 7 is fixed on the partition plate repair welding circular column 18 .

[0032] Four female soldering posts are welded to the bottom plate 1 of the intrinsically safe chamber, securing the switch module mounting plate 21. This plate connects to the switch interface board 22, which in turn connects to the integrated gateway switch mainboard 23 and the Ethernet switch module 24. The Ethernet switch module 24 connects to the switch module heat sink 25. An indicator light board 26 is secured to the top plate 3 above the side panels 2 of the intrinsically safe chamber. An insulating pad 27 is secured to this indicator light board 26, and a flat-top light guide 28 is mounted on this insulating pad 27.

[0033] Sealing grooves are opened on the top plates 3 of the explosion-proof chamber and the intrinsically safe chamber, and sealing rings 4 are arranged in the sealing grooves. The explosion-proof chamber cover plate 8 and the intrinsically safe chamber cover plate 9 respectively squeeze the sealing rings 4 and are fixed to the explosion-proof surface of the top plate 3 through fasteners.

[0034] The intrinsically safe cavity cover plate 9 has a viewing window, which is connected to the indicator light board 26, insulating pad 27, and flat-head light guide 28 via fasteners. An observation window is provided on the front of the intrinsically safe cavity for observing the indicator light status. There are a total of eight indicator lights: one Gigabit indicator, one 100M indicator, two optical port indicators, and four electrical port indicators. Each electrical port requires two indicators: one to indicate the connection status and one to indicate the transmission speed. This embodiment is equipped with four cable interfaces, two fiber interfaces, and two fiber optic cable entry devices 31.

[0035] Two optical cable entry devices 31 are installed on the back of the explosion-proof chamber, and two socket optical cable assemblies 32, a first connector 33, a second connector 34, a third connector 35 and a spare interface are installed on the back of the intrinsically safe chamber; the first connector 33 and the second connector 34 are the controller POE power supply ports, and the third connector 35 is the camera POE power supply port; the socket optical cable assembly 32 is the switch optical cable port; the internal circuit of the box provides IP68 protection level.

[0036] This utility model uses an embedded processor and real-time operating system, combined with software technology, to achieve conversion and interconnection of multiple communication interfaces and protocols. It receives signals for different field purposes through switch and analog input interfaces. After internal program processing and logical operations, it outputs control information, controlling the start and stop of field equipment while transmitting necessary monitoring data to the host computer.

[0037] Regarding the specific structure of the present invention, it should be noted that the connection relationship between the various component modules adopted in the present invention is definite and feasible. Except for the special instructions in the embodiments, the specific connection relationship can bring about corresponding technical effects and solve the technical problems raised by the present invention without relying on the execution of the corresponding software program. The components, modules, models of specific components appearing in the present invention, the connection methods between each other, and the conventional usage methods and expected technical effects brought about by the above-mentioned technical features, except for the specific instructions, all belong to the disclosed contents in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by technical personnel in this field before the application date, or belong to the existing technologies such as conventional technology and common knowledge in this field, and there is no need to elaborate, so that the technical solution provided in this case is clear, complete, and feasible, and the corresponding physical products can be reproduced or obtained based on this technical means.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flameproof intrinsically safe integrated access gateway for mining, comprising a housing, characterized in that: A separate explosion-proof chamber and an intrinsically safe chamber are provided inside the box, and the explosion-proof chamber and the intrinsically safe chamber are connected to each other via a through-wall terminal (7). A explosion-proof chamber cover plate (8) is fixed on the top of the explosion-proof chamber, and an intrinsically safe chamber cover plate (9) is fixed on the top of the intrinsically safe chamber. A movable terminal block (19) is installed on the bottom plate (1) in the explosion-proof cavity. A power supply mounting plate (12) is also fixed on the bottom plate (1) in the explosion-proof cavity. A power supply board (13) and a power supply module (11) are fixed on the power supply mounting plate (12). A power supply protection plate (14) is provided on the upper portion of the power supply module (11). The power supply protection plate (14) is fixed on the power supply heat sink (15). A top plate (3) on the upper portion of the rear plate (6) in the explosion-proof cavity is connected to a dual-way power supply module heat sink (17) through fasteners. The dual-way power supply module heat sink (17) is connected to the dual-way power supply module protection plate. A dual-way power supply board (16) is installed below the dual-way power supply module protection plate. A switch module mounting plate (21) is fixed on the bottom plate (1) in the intrinsically safe cavity, a switch interface plate (22) is connected above the switch module mounting plate (21), an integrated gateway switch mainboard (23) and an Ethernet switch module (24) are connected above the switch interface plate (22), a switch module heat sink (25) is connected above the Ethernet switch module (24), an indicator light plate (26) is fixed on the top plate (3) on the upper part of the side plate (2) in the intrinsically safe cavity, an insulating pad (27) is fixed on the indicator light plate (26), and a flat-head light guide column (28) is installed on the insulating pad (27); An optical cable introduction device (31) is installed on the back of the flameproof cavity, and a socket optical cable assembly (32), a first connector (33), a second connector (34) and a third connector (35) are installed on the back of the intrinsically safe cavity.

2. The flameproof intrinsically safe integrated access gateway for mining according to claim 1, characterized in that: The explosion-proof cavity and the main body cavity are separated by a cavity partition (5), a through hole is opened on the cavity partition (5), a partition repair welding circular column (18) is passed through the through hole, and the through-wall terminal (7) is fixed on the partition repair welding circular column (18).

3. The flameproof intrinsically safe integrated access gateway for mining according to claim 1, characterized in that: The dual-circuit power supply board (16) is fixed on the power supply mounting board (12) close to one side of the rear plate (6).

4. The flameproof intrinsically safe integrated access gateway for mining according to claim 1, characterized in that: The top plates (3) of the explosion-proof cavity and the intrinsically safe cavity are both provided with sealing grooves, in which sealing rings (4) are arranged. The explosion-proof cavity cover plate (8) and the intrinsically safe cavity cover plate (9) respectively squeeze the sealing rings (4) and are fixed to the explosion-proof surface of the top plate (3) through fasteners.

5. The flameproof intrinsically safe integrated access gateway for mining according to claim 1, characterized in that: A viewing window is provided on the intrinsically safe cavity cover (9), and the viewing window is sequentially connected to the indicator light plate (26), the insulating pad (27), and the flat-head light guide column (28) through fasteners.

6. The flameproof intrinsically safe integrated access gateway for mining according to claim 1, characterized in that: There is also an observation window on the front of the intrinsically safe chamber for observing the status of the indicator light.

7. The flameproof intrinsically safe integrated access gateway for mining according to claim 1, characterized in that: The first connector (33) and the second connector (34) are POE power supply ports for the controller, and the third connector (35) is a POE power supply port for the camera; the socket optical cable assembly (32) is an optical cable port for the switch.

8. The flameproof intrinsically safe integrated access gateway for mining according to claim 7, characterized in that: The indicator light board (26) is provided with a gigabit indicator light, a 100M indicator light, an optical port indicator light and an electrical port indicator light.

9. The flameproof intrinsically safe integrated access gateway for mining according to claim 8, characterized in that: Each electrical port requires two indicator lights, one for indicating the connection status and one for indicating the transmission speed.

10. A flameproof intrinsically safe integrated access gateway for mining according to any one of claims 1 to 9, characterized in that: The box body is welded with Q235A steel plates.

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