Explosion-proof wire converging device

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By arranging multiple quick connectors and busbars with different numbers of cores on the explosion-proof control cabinet, the problems of assembly difficulty, reduced versatility and increased volume of the existing explosion-proof control cabinet when meeting the requirements for incoming and outgoing lines are solved, and rapid wiring and Versatility improves work efficiency and productivity.

CN222395208UActive Publication Date: 2025-01-24NANYANG YITONG EXPLOSION PROOF ELECTRIC CO LTD

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Patent Information

Application Number: CN202420210843.3
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-01-29
Publication Date: 2025-01-24
Estimated Expiration: 2034-01-29

AI Technical Summary

Technical Problem

When the existing general explosion-proof control cabinet meets the entry and exit requirements, increasing the number of explosion-proof joints leads to assembly difficulties, reducing versatility, increasing volume and increasing certification costs, and it is difficult to expand the entry and exit ports.

Method used

Design a type of explosion -proof thread that sets multiple fast connectors of different core numbers on the explosion -proof box, and sets the exchange lines internally to connect the rapid connection of different core numbers to achieve fast wiring and multifunctional.

Benefits of technology

Realize the rapid wiring, improve work efficiency, reduce the number and volume of the joints, improve the universality and production efficiency of the control cabinet, and reduce certification and production costs.

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Abstract

The utility model relates to the technical field of electrical control equipment, and discloses an explosion-proof wire converging device, which comprises an explosion-proof box body, quick plugs arranged on the side surface of the explosion-proof box body, and a wire converging row connected with the quick plugs with different core numbers, the explosion-proof box body is provided with at least two side surfaces, the two side surfaces are respectively provided with a quick plug, and the core numbers of the quick plugs on different side surfaces are different; the quick plug is detachably connected with the explosion-proof box body, the quick plug on the outer side of the first side face of the explosion-proof box body is connected with the female head located in the side face, the female head is connected with the wire collecting row through a first connecting wire, and the wire collecting row is connected with the quick plug arranged on the second side face of the explosion-proof box body through a second connecting wire. According to the utility model, the plurality of quick connectors with different core numbers are arranged on the explosion-proof box body, and the wire collecting row is arranged inside to connect the quick connectors with different core numbers, so that quick wiring is realized, the working efficiency is improved, the number of the connectors does not need to be increased, and the application range is widened.

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Description

Technical Field

[0001] The utility model relates to the technical field of electrical control equipment, in particular to an explosion-proof line junction box. Background Art

[0002] Flameproof control cabinet is an electrical device specially designed for flammable and explosive environments. It prevents the explosion inside from spreading to the outside environment by sealing the parts that may ignite the explosive gas mixture in a solid shell. It places the live parts of the electrical equipment in a special shell, which has the function of isolating the sparks and arcs generated by the electrical parts inside the shell from the explosive mixture outside the shell, and can withstand the explosion pressure generated when the explosive mixture entering the shell is ignited by the sparks and arcs of the electrical equipment inside the shell, without damaging the shell; at the same time, it can prevent the explosion products inside the shell from spreading to the explosive mixture outside the shell, and will not cause the explosive mixture outside the shell to burn and explode.

[0003] At present, most general explosion-proof control cabinets meet the requirements of incoming and outgoing lines by increasing the number of explosion-proof connectors; this method of use has many shortcomings, such as: First, increasing the number of explosion-proof connectors too much will cause too many inputs and outputs, causing wiring troubles for assemblers and affecting the work efficiency of assemblers; second, once the position and size of the opening are determined, they basically cannot be changed, which greatly reduces the versatility of the explosion-proof control cabinet; third, if the explosion-proof control cabinet has too many inputs or outputs, it will be necessary to add a lot of explosion-proof connectors to meet the requirements, which will greatly increase the size of the explosion-proof control cabinet; fourth, too many inputs and outputs will also increase the specifications and certification costs of the explosion-proof control cabinet; and at present, after the processing and welding of the explosion-proof control cabinet in the industry are completed, it is difficult to expand the inlet and outlet ports. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide an explosion-proof junction box, which achieves rapid wiring and improves work efficiency without increasing the number of connectors, thereby increasing the scope of application.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an explosion-proof junction box, comprising an explosion-proof box, a quick plug arranged on the side of the explosion-proof box, and a junction box connected to the quick plugs with different core numbers; the explosion-proof box has at least two sides, and the two sides are respectively provided with a quick plug, and the number of cores of the quick plugs on different sides is different; the quick plug is detachably connected to the explosion-proof box, the quick plug on the outside of the first side of the explosion-proof box is connected to the female head located inside the side, the female head is connected to the junction box through a first connecting wire, and the junction box is connected to the quick plug arranged on the second side of the explosion-proof box through a second connecting wire.

[0006] Furthermore, the explosion-proof box has four side surfaces, the first side surface and the second side surface of the explosion-proof box are adjacent to each other, the third side surface of the explosion-proof box is arranged opposite to the first side surface, and the fourth side surface is arranged opposite to the second side surface.

[0007] Furthermore, the quick plug on the first side includes a row of 4-core quick plugs and a row of 5-core quick plugs arranged in sequence from top to bottom on the side, and the quick plug on the second side includes a 27-core quick plug connected to the quick plug on the first side.

[0008] Furthermore, the quick plug on the third side includes at least one row of 3-core quick plugs, and the quick plug on the second side also includes an 18-core quick plug connected to the 3-core quick plug, and the 3-core quick plug is connected to the 18-core quick plug through a bus bar; the first side and the third side use different bus bars to connect to the quick plug on the second side.

[0009] Furthermore, the quick plug is fixedly connected to the fixing flange, the fixing flange is fixedly connected to the explosion-proof box through a first fixing bolt, and the quick plug passes through the fixing flange and is connected to the female head.

[0010] Furthermore, a fixing plate is symmetrically arranged at the bottom of the side of the explosion-proof box, and a positioning screw hole for connecting with the explosion-proof control cabinet is arranged on the fixing plate; the quick plug sleeve is provided with a cover cap for preventing dust and accidental touch.

[0011] Furthermore, the explosion-proof box body also includes a top plate, a slot is provided on the top plate, a flange is arranged corresponding to the slot, the flange includes a fixing ring inserted into the slot and a support ring integrally arranged with the upper surface of the fixing ring, the outer diameter of the support ring is larger than the outer diameter of the fixing ring; a box cover is arranged on the upper surface of the flange, fixing screw holes are provided at corresponding positions of the box cover and the support ring of the flange, and the fixing screw holes are threadedly connected to the second fixing bolt; the box cover includes a second fixing ring inserted into the fixing ring and a sealing plate integrally arranged with the upper surface of the second fixing ring, the diameter of the sealing plate is larger than the outer diameter of the second fixing ring, and the lower surface of the sealing plate fits with the upper surface of the support ring.

[0012] Furthermore, a portion of the sealing plate that exceeds the outer circle of the second fixing ring is provided with an annular groove extending upward from the lower surface, and a sealing ring is extruded in the annular groove.

[0013] The beneficial effects of the utility model are as follows: by arranging a plurality of quick connectors with different numbers of cores on an explosion-proof housing, and arranging a busbar inside to connect the quick connectors with different numbers of cores, the wires that need to be connected to the control cabinet from the outside are connected to the male end of the quick connector, and then enter the busbar in the explosion-proof junction box through the female end of the quick connector, and then are connected to the multi-hole quick connector plugs on one side in sequence according to the wiring sequence, and enter the control cabinet through a quick connector; by utilizing the versatility of the quick connector, quick wiring is achieved without increasing the number of connectors; the explosion-proof junction box adopts an explosion-proof control cabinet, which can be used in a variety of explosion-proof occasions, and the connector adopts an explosion-proof quick connector plug, which can achieve quick wiring, improve work efficiency, and save wiring time; at the same time, the use of the quick connector plug can save the volume of the control cabinet, reduce the number of openings in the control cabinet, and improve the versatility of the control cabinet; by utilizing the versatility of the quick connector plug, the control cabinet certification model can be reduced, and the production cost can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the top view structure of the utility model;

[0015] Figure 2 It is a side view structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 5 For this utility model Figure 4 Enlarged structural diagram at A in the middle.

[0019] In the figure: 1. explosion-proof box; 2. fixing plate; 3. positioning screw hole; 4. 4-core quick plug; 5. cover cap; 6. 5-core quick plug; 7. fixing flange; 8. first fixing bolt; 9. 27-core quick plug; 10. 18-core quick plug; 11. 3-core quick plug; 12. top plate; 13. slot; 14. flange; 15. box cover; 16. ring groove; 17. sealing ring; 18. fixing screw hole; 19. second fixing bolt; 20. bus bar; 21. female connector; 22. first connecting wire; 23. second connecting wire. DETAILED DESCRIPTION

[0020] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0021] Example:

[0022] like Figure 1-Figure 5As shown, an explosion-proof busbar comprises an explosion-proof housing 1, a quick plug arranged on the side of the explosion-proof housing 1, and a busbar 20 connected to the quick plugs with different core numbers; the explosion-proof housing 1 has at least two sides, that is, at least a first side and a second side, and quick plugs are arranged on each of the two sides, and the number of cores of the quick plugs on different sides is different; the quick plug is detachably connected to the explosion-proof housing 1, the quick plug on the outside of the first side of the explosion-proof housing 1 is connected to a female plug 21 located inside the side, the female plug 21 is connected to a corresponding busbar 20 fixed inside the explosion-proof housing 1 through a first connecting wire 22, and the busbar 20 is connected to a quick plug arranged on the second side of the explosion-proof housing 1 through a second connecting wire 23; the quick plug on the second side is connected to the inside of the explosion-proof control cabinet.

[0023] The explosion-proof box 1 has four side surfaces, namely a first side surface, a second side surface, a third side surface and a fourth side surface. The first side surface and the second side surface of the explosion-proof box 1 are adjacent to each other, the third side surface of the explosion-proof box 1 is arranged opposite to the first side surface, and the fourth side surface is arranged opposite to the second side surface.

[0024] The quick plug on the first side includes a row of 4-core quick plugs 4 and a row of 5-core quick plugs 6 arranged in sequence from top to bottom on the side, and the quick plug on the second side includes a 27-core quick plug 9 connected to the quick plug on the first side.

[0025] The quick plug on the third side includes at least one row of 3-core quick plugs 11, and the quick plug on the second side also includes an 18-core quick plug 10 connected to the 3-core quick plug 11, and the 3-core quick plug 11 is connected to the 18-core quick plug 10 through a bus bar 20; the first side and the third side use different bus bars 20 to connect with the quick plug on the second side; the bus bar 20 connected to the quick plug on the first side is the first bus bar, and the bus bar 20 connected to the quick plug on the third side is the second bus bar.

[0026] The quick plug is fixedly connected to the fixing flange 7 , the fixing flange 7 is fixedly connected to the explosion-proof box 1 through the first fixing bolts 8 , and the quick plug passes through the fixing flange 7 and is connected to the female head 21 .

[0027] A fixing plate 2 is symmetrically arranged at the bottom of the side of the explosion-proof box 1, and a positioning screw hole 3 for connecting with the explosion-proof control cabinet is arranged on the fixing plate 2. The fixing plate 2 is fixedly connected to the explosion-proof box 1 by bolts passing through the positioning screw hole 3; the quick plug sleeve is provided with a cover cap 5 for preventing dust and accidental touch.

[0028] The explosion-proof box 1 also includes a top plate 12, which is provided with a slot 13 for connecting the inside and outside of the explosion-proof box 1, and a flange 14 is arranged corresponding to the slot 13. The flange 14 includes a fixing ring inserted into the slot 13 and a support ring integrally arranged with the upper surface of the fixing ring, and the outer diameter of the support ring is larger than the outer diameter of the fixing ring; a box cover 15 is arranged on the upper surface of the flange 14, and fixing screw holes 18 are arranged at corresponding positions of the box cover 15 and the support ring of the flange 14, and the fixing screw holes 18 are threadedly connected with a second fixing bolt 19; the box cover 15 includes a second fixing ring inserted into the fixing ring and a sealing plate integrally arranged with the upper surface of the second fixing ring, the sealing plate is circular, the diameter of the sealing plate is larger than the outer diameter of the second fixing ring, and the lower surface of the sealing plate fits with the upper surface of the support ring.

[0029] The portion of the sealing plate that exceeds the outer circumference of the second fixing ring is provided with an annular groove 16 extending upward from the lower surface, and a sealing ring 17 is extruded and arranged in the annular groove 16 from top to bottom.

[0030] Based on the current situation of the industry, our company has developed an explosion-proof cable connector. The design is based on meeting the basic properties of quick, convenient and safe wiring in the explosion-proof industry, which greatly improves the work efficiency of industry workers, improves work quality, reduces corporate production costs, and simplifies processing and assembly processes.

[0031] By arranging a plurality of quick connectors with different numbers of cores on the explosion-proof box, and arranging a bus bar 20 inside to connect the quick connectors with different numbers of cores, the wires that need to be connected to the control cabinet from the outside are connected to the male head of the quick connector, and then enter the bus bar in the explosion-proof bus bar through the female head of the quick connector, and then are connected to the multi-hole quick-connect plugs on one side in sequence according to the wiring sequence, and enter the control cabinet through a quick connector.

[0032] By utilizing the versatility of quick connectors, quick wiring is achieved without increasing the number of connectors; the explosion-proof junction box adopts a flameproof control cabinet, which can be used in a variety of explosion-proof occasions, and the connector adopts an explosion-proof quick-connect plug, which can achieve quick wiring, improve work efficiency, and save wiring time; at the same time, the use of quick-connect plugs can save the volume of the control cabinet, reduce the number of holes in the control cabinet, and improve the versatility of the control cabinet; the versatility of the quick-connect plug can reduce the control cabinet certification model and reduce production costs.

[0033] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. An explosion-proof cable junction, characterized in that: The invention comprises an explosion-proof housing (1), a quick plug arranged on the side of the explosion-proof housing (1), and a busbar (20) connected to the quick plugs with different numbers of cores; the explosion-proof housing (1) has at least two side surfaces, and the quick plugs are arranged on each of the two side surfaces, and the numbers of cores of the quick plugs on different side surfaces are different; the quick plugs are detachably connected to the explosion-proof housing (1), the quick plug on the outside of a first side surface of the explosion-proof housing (1) is connected to a female plug (21) located inside the side surface, the female plug (21) is connected to the busbar (20) via a first connecting wire (22), and the busbar (20) is connected to the quick plug arranged on the second side surface of the explosion-proof housing (1) via a second connecting wire (23).

2. The explosion-proof cable junction according to claim 1, characterized in that: The explosion-proof box (1) has four side surfaces, wherein a first side surface and a second side surface of the explosion-proof box (1) are adjacent to each other, a third side surface of the explosion-proof box (1) is arranged opposite to the first side surface, and a fourth side surface is arranged opposite to the second side surface.

3. The explosion-proof cable junction according to claim 2, characterized in that: The quick plug on the first side includes a row of 4-core quick plugs (4) and a row of 5-core quick plugs (6) arranged in sequence from top to bottom on the side, and the quick plug on the second side includes a 27-core quick plug (9) connected to the quick plug on the first side.

4. The explosion-proof cable junction according to claim 3, characterized in that: The quick plug on the third side includes at least one row of three-core quick plugs (11), and the quick plug on the second side also includes an 18-core quick plug (10) connected to the three-core quick plug (11), the three-core quick plug (11) being connected to the 18-core quick plug (10) via a bus bar (20); the first side and the third side are connected to the quick plug on the second side using different bus bars (20).

5. The explosion-proof cable junction according to claim 1, characterized in that: The quick plug is fixedly connected to the fixing flange (7), the fixing flange (7) is fixedly connected to the explosion-proof box (1) via a first fixing bolt (8), and the quick plug passes through the fixing flange (7) and is connected to the female head (21).

6. The explosion-proof cable junction according to claim 1, characterized in that: A fixing plate (2) is symmetrically arranged at the bottom of the side of the explosion-proof box (1), and a positioning screw hole (3) for connecting with the explosion-proof control cabinet is arranged on the fixing plate (2); and a cover cap (5) for preventing dust and accidental touch is arranged on the quick plug sleeve.

7. The explosion-proof cable junction according to claim 1, characterized in that: The explosion-proof box (1) further comprises a top plate (12), the top plate (12) is provided with a slot (13), a flange (14) is provided corresponding to the slot (13), the flange (14) comprises a fixing ring inserted into the slot (13) and a support ring integrally provided with the upper surface of the fixing ring, the outer diameter of the support ring being larger than the outer diameter of the fixing ring; a box cover (15) is provided on the upper surface of the flange (14), fixing screw holes (18) are provided at corresponding positions of the box cover (15) and the support ring of the flange (14), the fixing screw holes (18) are threadedly connected with second fixing bolts (19); the box cover (15) comprises a second fixing ring inserted into the fixing ring and a sealing plate integrally provided with the upper surface of the second fixing ring, the diameter of the sealing plate being larger than the outer diameter of the second fixing ring.

8. The explosion-proof cable junction according to claim 7, characterized in that: A ring groove (16) is formed upward from the lower surface of the sealing plate at a portion extending beyond the outer circumference of the second fixing ring, and a sealing ring (17) is extruded and arranged in the ring groove (16).