Bunching box of distributed coal conveying field bus

Abstract

The utility model provides a bunching box of a distributed coal conveying field bus, and relates to the bunching box field, the bunching box comprises a junction box, a wire fixing box and a cover plate, the upper side of the junction box is provided with an upper vent hole, the lower side of the junction box is provided with a lower vent hole, the inner part of the junction box is provided with a wiring cavity, the wire fixing box is connected to the front side of the junction box, and the cover plate is arranged on the junction box. A wire inlet hole is formed in the front side of the wire fixing box, a locking bolt is in threaded connection with the upper side of the wire fixing box, meanwhile, a movable clamping plate which is movably connected and a fixed clamping plate which is fixedly connected are arranged in the wire fixing box, the cover plate is hinged to the upper side of the junction box, and a draft fan is installed in the cover plate. According to the field bus bunching box, the problems of internal heat dissipation effect deviation and cable fixing effect deviation of the existing field bus bunching box are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire harness boxes, in particular to a wire harness box for a distributed coal transportation field bus. Background Art

[0002] Fieldbus is a digital, bidirectional, multi-branch communication network that connects intelligent field devices and automation systems. It is one of the current hot spots in industrial automation. Fieldbus refers to a network that mainly uses digital communication between measurement and control machines in a factory, also known as a field network, which is a specialized network that specializes communication between sensors, various operating terminals and controllers, and between controllers. At the distributed coal transportation site, a wiring harness box is required to store and connect the branched fieldbus. After searching, the prior art (application number: CN202120255134.3) records "a system bus installation and fixing device, including a cable tie plate, the cable tie plate is symmetrically provided with connecting pieces on both sides, the front surface of the cable tie plate is evenly excavated with a plurality of cable tie grooves, the middle of the inner cavity of the cable tie groove is excavated with a cable tie hole, and one side of the cable tie hole extends to one side of the rear surface of the cable tie plate, the middle of the front surface of the cable tie plate is connected with a cable tie mechanism through an adjustment mechanism, and the adjustment mechanism is symmetrically arranged on both sides of the front surface of the cable tie plate, the adjustment mechanism includes an adjustment groove, a partition, a sub-groove, a reset spring and a brake rod, the adjustment groove is symmetrically excavated on both sides of the front surface of the cable tie plate, the inner cavity of the adjustment groove is formed with a plurality of sub-grooves by a partition, the partition is arranged in the middle of the inner cavity of the adjustment groove, a reset spring is arranged in the middle of one side of the inner cavity of the sub-groove, and a brake rod is arranged on one side of the reset spring, which effectively makes the connection between the system bus and the system load more stable."

[0003] Although the field bus harness box in the prior art realizes the reinforced connection of the bus, there are still some shortcomings: the existing harness device needs to be installed in a distribution cabinet or a distribution box after wiring, and the branch bus is centrally connected in the harness box, resulting in the current working state, and the heat generated is not easy to dissipate, and it is in the distribution cabinet or distribution box, and the external heat dissipation environment is deviated, which leads to the deviation of the heat dissipation effect inside the harness box; secondly, when the bus is centrally connected, since the outer diameter of the field bus may vary depending on the use environment, and the size of the wire entry hole and the wire entry port of the above-mentioned fixing device is single, it is not convenient to effectively fix the center specification cable, and the clamping effect is deviated only by the elastic action of the spring, and the cable may be disconnected from the terminal under the traction of external force. Utility Model Content

[0004] In order to overcome the defects of the prior art, a distributed coal handling field bus harness box is provided to solve the problems of internal heat dissipation effect deviation and cable fixing effect deviation in the existing field bus harness box.

[0005] In order to achieve the above-mentioned purpose, a wiring harness box for a distributed coal transportation field bus is provided, comprising: a junction box, a wire fixing box and a cover plate, wherein an upper ventilation hole is provided on the upper side of the junction box, and a lower ventilation hole is provided on the lower side of the junction box, and a wiring cavity is provided inside the junction box, the wire fixing box is connected to the front side of the junction box, and a wire entry hole is provided on the front side of the wire fixing box, and a locking bolt is screwed on the upper side of the wire fixing box, and a movable splint with a movable connection and a fixed splint with a fixed connection are provided inside the wire fixing box, the cover plate is hinged on the upper side of the junction box, and an exhaust fan is installed inside the cover plate.

[0006] Furthermore, two right-angle ends of the rear side of the junction box are connected with mounting blocks, and mounting holes are provided inside the mounting blocks, and a rectangular hole communicating with the wiring cavity is provided on the front side of the junction box.

[0007] Furthermore, a cavity is provided inside the wire fixing box, and the cavity is communicated with a wire entry hole on the front side of the wire fixing box, and a plurality of wire entry holes with different inner diameters are provided.

[0008] Furthermore, a guide pin is connected to the upper end of the movable clamping plate, and the guide pin slides through the upper side of the wire fixing box.

[0009] Furthermore, an upper clamping groove is provided on the lower side of the movable clamping plate, and a lower clamping groove is provided on the upper side of the fixed clamping plate, and the upper clamping groove corresponds to the lower clamping groove one by one, and the upper clamping groove and the lower clamping groove are provided with multiple groups of different radii.

[0010] Furthermore, the upper clamping groove and the lower clamping groove are both configured as arc-shaped groove structures, and the inner groove wall of the arc-shaped groove is configured as a rubber pad.

[0011] Furthermore, the movable splint is located on the upper side of the fixed splint, and the lower end of the movable splint is connected with a magnetic sleeve, while the upper end of the fixed splint is provided with a magnetic column, and the magnetic column and the magnetic sleeve are matched and plugged in up and down.

[0012] The beneficial effects of the utility model are:

[0013] 1. When in use, use the wire entry hole on the front side of the wire box to insert cables of different specifications so that the cables are located between the upper clamping groove and the lower clamping groove on the inside. Then rotate the locking bolt to move the movable clamping plate downward, and then cooperate with the fixed clamping plate to clamp the cables. At the same time, the magnetic sleeve and the magnetic column are plugged and adsorbed to each other, so that the cables can be fixed more stably to prevent them from being loosened due to accidental pulling from the outside. At the same time, it is suitable for cable connection of field buses of various specifications;

[0014] 2. By using the upper through hole and the lower through hole, after starting the exhaust fan, the heat generated inside the junction box can be effectively discharged through the exhaust effect of the exhaust fan. At the same time, the external cold air enters through the lower through hole and is then discharged through the upper through hole, so that the airflow passes through the junction box in the vertical direction, achieving a better heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the front cross-section structure of the junction box according to an embodiment of the utility model.

[0017] Figure 3 It is a schematic diagram of the front cross-section structure of the wire fixing box according to an embodiment of the utility model.

[0018] Figure 4 For the utility model embodiment Figure 3 Schematic diagram of the structure at point A in the middle.

[0019] In the figure: 1. Junction box; 11. Mounting block; 12. Upper ventilation hole; 13. Lower ventilation hole; 14. Wiring cavity; 2. Wire fixing box; 21. Wire entry hole; 22. Locking bolt; 23. Movable clamping plate; 231. Upper clamping groove; 24. Fixed clamping plate; 241. Lower clamping groove; 25. Guide pin; 26. Magnetic sleeve; 27. Magnetic column; 3. Cover plate; 31. Exhaust fan. DETAILED DESCRIPTION

[0020] Reference Figures 1 to 4 As shown, the utility model provides a wiring harness box for a distributed coal transportation field bus, comprising: a junction box 1, a wire fixing box 2 and a cover plate 3, an upper ventilation hole 12 is provided on the upper side of the junction box 1, and a lower ventilation hole 13 is provided on the lower side of the junction box 1, and a wiring cavity 14 is provided inside the junction box 1, two right-angle ends on the rear side of the junction box 1 are connected with mounting blocks 11, and mounting holes are provided inside the mounting blocks 11, and a rectangular hole communicating with the wiring cavity 14 is provided on the front side of the junction box 1, the wire fixing box 2 is connected to the front side of the junction box 1, and a wire entry hole 21 is provided on the front side of the wire fixing box 2, and a locking bolt 22 is screwed on the upper side of the wire fixing box 2, and a movable splint 23 and a fixed splint 24 are provided inside the wire fixing box 2, the cover plate 3 is hinged on the upper side of the junction box 1, and an exhaust fan 31 is installed inside the cover plate 3.

[0021] In this embodiment, the junction box 1, the wire fixing box 2 and the cover plate 3 constitute the main structure of the wire harness box of the distributed coal handling field bus involved in this application, which is used for the centralized connection of the distributed coal handling field bus.

[0022] Specifically, the rear side of the cover plate 3 is hinged to the rear edge of the junction box 1, and the front edge of the cover plate 3 is provided with a fixing bolt, a through mounting hole is opened inside the cover plate 3, the mounting hole corresponds to the position of the upper ventilation hole 12, and the exhaust fan 31 is installed in the mounting hole, and dust nets are provided on the upper side of the exhaust fan 31, as well as inside the upper ventilation hole 12 and the lower ventilation hole 13.

[0023] Specifically, the upper side of the junction box 1 is set as an open structure, and the wiring cavity 14 is provided with wiring terminals, and the cover plate 3 is kept in an open state during the wiring process to facilitate the connection of the field bus.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown, a cavity is provided inside the wire box 2, and the cavity is connected to the wire entry hole 21 on the front side of the wire box 2, and the wire entry hole 21 is provided with several wire entry holes with different inner diameters. The upper end of the movable clamping plate 23 is connected with a guide pin 25, and the guide pin 25 slides through the upper side of the wire box 2, an upper clamping groove 231 is provided on the lower side of the movable clamping plate 23, and a lower clamping groove 241 is provided on the upper side of the fixed clamping plate 24, and the upper clamping groove 231 corresponds to the lower clamping groove 241 one by one up and down, and at the same time, the upper clamping groove 231 and the lower clamping groove 241 are provided with multiple groups with different radii, and the upper clamping groove 231 and the lower clamping groove 241 are both provided with an arc groove structure, and the inner groove wall of the arc groove is provided with a rubber pad, the movable clamping plate 23 is located on the upper side of the fixed clamping plate 24, and the lower end of the movable clamping plate 23 is connected with a magnetic sleeve 26, and at the same time, a magnetic column 27 is provided on the upper end of the fixed clamping plate 24, and the magnetic column 27 and the magnetic sleeve 26 are matched and plugged in up and down.

[0025] Specifically, an insulating plate made of rubber is connected between the movable clamp plate 23 and the fixed clamp plate 24, and the insulating plate is located between adjacent clamp grooves, so that when the lines are introduced, the cables can be separated and isolated, thereby achieving the effect of insulating and protecting each other. At the same time, after one end of the cable is connected to the terminal block, when the rear side is tightened, each cable is located at the corresponding notch of the upper clamp groove 231 and the lower clamp groove 241, which is convenient for fixed line connection.

[0026] Specifically, the cable entry hole 21 corresponds to the position of the clamping groove opening formed by the upper clamping groove 231 and the lower clamping groove 241 on the rear side, and the cable is clamped and protected by the buffer pad arranged on the groove wall.

[0027] As a preferred embodiment, the magnetic sleeve 26 and the magnetic column 27 are made of magnet materials with opposite polarities attracting each other, so that after the movable clamping plate 23 is connected to the fixed clamping plate 24, the clamping stability of the cable is enhanced through the adsorption connection of the magnetic sleeve 26 and the magnetic column 27.

[0028] It should be noted that the lengths of the magnetic sleeve 26 and the magnetic column 27 can be set according to the clamping effect of the cable and the clamping groove. When the movable clamping plate 23 and the fixed clamping plate 24 need to be closely connected, the magnetic sleeve 26 can be embedded in the movable clamping plate 23.

[0029] When in use, cables of different specifications are inserted through the wire entry hole on the front side of the wiring box, so that the cables are located between the upper clamping groove and the lower clamping groove on the inside, and then the locking bolt is rotated to move the movable clamping plate downward, and then cooperate with the fixed clamping plate to clamp the cable. At the same time, the magnetic sleeve and the magnetic column are plugged into and adsorbed on each other, so that a relatively stable fixing effect is achieved for the cable. By using the upper through hole and the lower through hole, after the exhaust fan is started, the exhaust effect of the exhaust fan can effectively discharge the heat generated inside the junction box, and at the same time, the external cold air enters through the lower through hole and is then discharged through the upper through hole, so that the airflow passes through the junction box in the vertical direction, achieving a relatively good heat dissipation effect.

[0030] The utility model of the wire harness box for the distributed coal transportation field bus can effectively solve the problems of deviation in the internal heat dissipation effect and deviation in the fixing effect of the cables in the existing field bus wire harness boxes. It realizes the improvement of the heat dissipation effect of the wire harness box on the basis of the existing technology of the wire harness box for the distributed coal transportation field bus, and is suitable for connecting field buses of various specifications, and has enhanced the fixing and anti-detachment effect on the cables.

Claims

1. A wire harness box for a distributed coal transport field bus, comprising: A junction box (1), a wire fixing box (2) and a cover plate (3), characterized in that: an upper ventilation hole (12) is provided on the upper side of the junction box (1), and a lower ventilation hole (13) is provided on the lower side of the junction box (1), and a wiring cavity (14) is provided inside the junction box (1); the wire fixing box (2) is connected to the front side of the junction box (1), and a wire entry hole (21) is provided on the front side of the wire fixing box (2), and a locking bolt (22) is screwed on the upper side of the wire fixing box (2), and a movable clamping plate (23) and a fixed clamping plate (24) are provided inside the wire fixing box (2); the cover plate (3) is hinged on the upper side of the junction box (1), and an exhaust fan (31) is installed inside the cover plate (3).

2. A cable harness box for a distributed coal handling field bus according to claim 1, characterized in that: Two right-angle ends at the rear side of the junction box (1) are connected to a mounting block (11), a mounting hole is provided inside the mounting block (11), and a rectangular hole communicating with the wiring cavity (14) is provided at the front side of the junction box (1).

3. A cable harness box for a distributed coal handling field bus according to claim 1, characterized in that: The wire fixing box (2) is provided with a cavity inside, and the cavity is communicated with a wire entry hole (21) on the front side of the wire fixing box (2), and the wire entry hole (21) is provided with a plurality of wire entry holes (21) with different inner diameters.

4. A distributed coal handling field bus wiring box according to claim 1, characterized in that: The upper end of the movable clamping plate (23) is connected to a guide pin (25), and the guide pin (25) slides through the upper side of the wire fixing box (2).

5. A cable harness box for a distributed coal handling field bus according to claim 1, characterized in that: An upper clamping groove (231) is provided on the lower side of the movable clamping plate (23), and a lower clamping groove (241) is provided on the upper side of the fixed clamping plate (24), and the upper clamping groove (231) corresponds to the lower clamping groove (241) one by one, and the upper clamping groove (231) and the lower clamping groove (241) are provided in multiple groups with different radii.

6. A cable harness box for a distributed coal handling field bus according to claim 5, characterized in that: The upper clamping groove (231) and the lower clamping groove (241) are both configured as arc-shaped groove structures, and the inner groove wall of the arc-shaped groove is configured as a rubber pad.

7. A cable harness box for a distributed coal handling field bus according to claim 1, characterized in that: The movable clamping plate (23) is located on the upper side of the fixed clamping plate (24), and the lower end of the movable clamping plate (23) is connected to a magnetic sleeve (26). Meanwhile, the upper end of the fixed clamping plate (24) is provided with a magnetic column (27), and the magnetic column (27) and the magnetic sleeve (26) are matched and plugged in from top to bottom.

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