Ten-way intrinsic safety junction box

Abstract

The utility model discloses a ten-way intrinsic safety junction box which comprises an upper half box body and a lower half box body which are fixed through bolts, two sides and the bottom of the box body are provided with a plurality of horn mouths, the upper surface of the box body is provided with a display screen and an information board, and the interior of the box body is provided with a partition and twenty-four terminals. Each row of terminals is provided with wiring attribute marks, and the horn mouth is provided with a sealing ring and scale marks. During installation, tools need to be prepared, lines are connected according to requirements, reasonable installation is carried out after checking and testing, and safety regulations are followed and regular inspection and maintenance are carried out. Compared with the prior art, the junction box integrates a plurality of wiring functions, reduces the use number, improves the installation and inspection efficiency and field standardization, is reasonable in internal layout, reduces the line disorder and fault probability, facilitates the operation of the display screen and the information board, improves the wiring accuracy and safety through the related design, and improves the use safety and stability through the box body processing. The complex environment is adapted.

Description

Technical Field

[0001] This utility model relates to a monitoring and control system for underground coal mines, specifically a ten-way intrinsically safe junction box. Background Technology

[0002] Currently, the KJ101N security monitoring system typically uses four 5-way intrinsically safe junction boxes and one 8-way intrinsically safe junction box to connect cables and substations during installation. Each monitoring substation in this system has one main transmission interface, one relay interface, two analog interfaces, and two digital interfaces. At full capacity, each substation requires four 5-way junction boxes, one 8-way junction box, and eight 2-way (3-way) junction boxes. The concentrated use of such a large number of junction boxes significantly impacts the installation and inspection time, leading to poor on-site standardization. Therefore, designing an independent device that can integrate functions is extremely important. Utility Model Content

[0003] The purpose of this utility model is to provide a ten-way intrinsically safe junction box, which solves the problems of messy wiring, poor standardization, too many junction boxes, and long inspection time caused by the complex wiring method of the original system substation in coal mines by setting up two vertical rows of twelve terminals and flared mouth structures inside.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A ten-way intrinsically safe junction box is characterized by comprising a box body, which is divided into upper and lower halves. The upper and lower halves are joined by interlocking buckles, and threaded holes are provided at the four corners of the box body. These threaded holes are secured by mounting bolts. Four flared nozzles are installed on each side of the box body, and two flared nozzles are installed on the lower side of the box body. Each flared nozzle is equipped with an intelligent sensor to monitor the cable connection status, current, and temperature in real time, and transmits this information to a display screen. The display screen is installed on the upper part of the upper surface of the box body, and an information label is attached to the lower part of the upper surface of the box body. A partition is provided in the middle of the interior of the box body, with no vertical connection between the upper and lower partitions. Each of the upper and lower partitions contains two vertical rows of twelve terminals, for a total of twenty-four terminals.

[0006] Each terminal is marked with relevant wiring attribute information, and an indicator light is installed on each terminal. When the terminal is connected correctly and the electrical performance is good, the indicator light will light up; when a connection failure or abnormal electrical performance occurs, the indicator light will flash as an alarm to remind the user to handle the situation in time.

[0007] The nozzle has a sealing ring inside, and the sealing ring is a multi-layer composite structure. The inner layer is made of highly elastic rubber to ensure a tight fit with the cable, and the outer layer is made of special plastic to improve the service life and sealing performance of the sealing ring. Conductive material is added between the different layers to realize the electrostatic discharge function and improve safety.

[0008] The horn nozzle is marked with a 0-15mm scale line for easy and accurate viewing of the wiring standard length. The horn nozzle is installed into the housing via a threaded knob for easy disassembly and replacement.

[0009] The edges of the box are rounded to prevent scratches to personnel during installation and use.

[0010] The inner surface of the box is provided with a ceramic fiber pad, which can still work stably in a vibration environment while being flame-retardant and breathable. A nano flame-retardant coating is applied to the outer layer of the ceramic fiber pad to improve the flame-retardant performance and add waterproof, moisture-proof and anti-static functions, providing more comprehensive protection for the internal electronic components.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] By integrating multiple wiring functions into a single 10-channel intrinsically safe junction box, the number of junction boxes used is greatly reduced, significantly improving the efficiency of equipment installation and inspection, and enhancing on-site standardization.

[0013] The internal twenty-four terminals and reasonable layout make the wiring connections clearer and more orderly, reducing the problem of messy wiring and lowering the probability of failure.

[0014] The display screen on the junction box shows its real-time operating status, facilitating timely identification and troubleshooting. The information panel provides clear wiring information, enabling operators to accurately connect wires and perform maintenance.

[0015] The scale lines at the flared nozzle, the internal single-layer sealing ring, and the marked wiring attribute information all further improve the accuracy and safety of the wiring.

[0016] The rounded edges of the box and the internal ceramic fiber pad enhance safety and stability during use, enabling it to adapt to more complex working environments. Attached Figure Description

[0017] Figure 1 This is a perspective view of a ten-channel intrinsically safe junction box according to the present invention.

[0018] Figure 2 This is a schematic diagram of the internal wiring method of a ten-channel intrinsically safe junction box according to the present invention;

[0019] In the picture: 1. Box body; 2. Bolt; 3. Nozzle; 4. Display screen; 5. Information board. Detailed Implementation

[0020] The technical solutions of the present invention will now be described in detail with reference to the accompanying drawings of the embodiments.

[0021] like Figure 1-2 As shown, a ten-way intrinsically safe junction box is characterized by comprising a box body 1, which is divided into upper and lower halves. The upper and lower halves of the box body 1 are joined by interlocking buckles, and threaded holes are provided at the four corners of the box body 1. These threaded holes are fixed by mounting bolts 2. Four horn nozzles 3 are installed on both sides of the box body 1, and two horn nozzles 3 are installed on the lower side of the box body 1. Each horn nozzle 3 is equipped with an intelligent sensor to monitor the cable connection status, current, and temperature in real time, and transmits this information to a display screen 4. The display screen 4 is installed on the upper part of the upper surface of the box body 1, and an information plate 5 is attached to the lower part of the upper surface of the box body 1. A partition is provided in the middle of the interior of the box body 1, with the upper and lower partitions not interconnected. Each of the upper and lower partitions contains two vertical rows of twelve terminals, for a total of twenty-four terminals.

[0022] Each terminal is marked with relevant wiring attribute information, and an indicator light is installed on each terminal. When the terminal is connected correctly and the electrical performance is good, the indicator light will light up; when a connection failure or abnormal electrical performance occurs, the indicator light will flash as an alarm to remind the user to handle the situation in time.

[0023] The horn nozzle 3 has a sealing ring inside, and the sealing ring is a multi-layer composite structure. The inner layer is made of high-elasticity rubber to ensure a tight fit with the cable, and the outer layer is made of special plastic to improve the service life and sealing performance of the sealing ring. Conductive material is added between the different layers to realize the electrostatic discharge function and improve safety.

[0024] The horn nozzle 3 is marked with a scale line of 0-15mm to facilitate accurate viewing of the wiring standard length. The horn nozzle 3 is installed into the housing 1 via a threaded knob for easy disassembly and replacement.

[0025] The edges of the box 1 are rounded to prevent scratches to personnel during installation and use.

[0026] The inner surface of the box 1 is provided with a ceramic fiber pad, which can still work stably in a vibration environment while being flame-retardant and breathable. A nano flame-retardant coating is applied to the outer layer of the ceramic fiber pad to improve the flame-retardant performance and add waterproof, moisture-proof and anti-static functions, providing more comprehensive protection for the internal electronic components.

[0027] Prepare the necessary tools. First, according to the wiring information markings, connect the four horn-shaped nozzles (3) on the left to the aviation connectors, connect the top horn-shaped nozzle (3) on the right to the 5-pair wires, and connect the remaining nozzles (3) to the 4-core monitoring wires as needed. During connection, pay attention to the 0-15mm scale markings on the nozzles (3) to ensure the wiring length conforms to the standard. After installation, carefully check that the wiring is secure and accurate, that the sealing ring is installed correctly, and perform preliminary tests, such as checking if the display screen (4) displays normally and if the wiring is continuous. Finally, according to the actual usage scenario, install the junction box in the designated location, ensuring it is not subject to external impacts or interference. At the same time, strictly follow the relevant safety operating procedures and conduct regular inspections and maintenance to ensure stable and reliable performance.

Claims

1. A ten-channel intrinsically safe junction box, characterized in that... The device includes a box body (1), which is divided into upper and lower halves. The upper and lower halves of the box body (1) are connected by interlocking buckles, and threaded holes are provided at the four corners. The threaded holes are fixed by mounting bolts (2). Four horn nozzles (3) are installed on both sides of the box body (1), and two horn nozzles (3) are installed on the lower side of the box body (1). The horn nozzles (3) are equipped with intelligent sensors to monitor the connection status, current, and temperature of the cable in real time and transmit this information to the display screen (4). The display screen (4) is installed on the upper part of the upper surface of the box body (1), and an information board (5) is attached to the lower part of the upper surface of the box body (1). A partition is provided in the middle of the box body (1). The partition is not interconnected. Twelve terminals are set in two vertical rows in the upper and lower partition spaces, for a total of twenty-four terminals.

2. The intrinsically safe junction box with ten-way connection according to claim 1, characterized in that: Each terminal is marked with relevant wiring attribute information, and an indicator light is installed on each terminal. When the terminal is connected correctly and the electrical performance is good, the indicator light will light up; when a connection failure or abnormal electrical performance occurs, the indicator light will flash as an alarm to remind the user to handle the situation in time.

3. A ten-channel intrinsically safe junction box according to claim 1, characterized in that: The horn mouth (3) is provided with a sealing ring inside, and the sealing ring is a multi-layer composite structure. The inner layer is made of high elastic rubber to ensure tight fit with the cable, and the outer layer is made of special plastic to improve the service life and sealing performance of the sealing ring. Conductive material is added between the different layers to realize the electrostatic discharge function and improve safety.

4. A ten-channel intrinsically safe junction box according to claim 1, characterized in that: The horn mouth (3) is marked with a scale line of 0-15mm, which makes it easy to accurately check the length of the wiring standard. The horn mouth (3) is installed into the box body (1) by a threaded knob, which makes it easy to disassemble and replace.

5. A ten-channel intrinsically safe junction box according to claim 1, characterized in that: The edges of the box (1) are rounded to prevent scratches to personnel during installation and use.

6. A ten-channel intrinsically safe junction box according to claim 1, characterized in that: The inner surface of the box (1) is provided with a ceramic fiber pad, which can still work stably in a vibration environment while being flame-retardant and breathable. A nano flame-retardant coating is applied to the outer layer of the ceramic fiber pad to improve the flame-retardant performance and increase the functions of waterproofing, moisture-proofing and antistatic, providing more comprehensive protection for the internal electronic components.

Images