Special-shaped cable transition box

Abstract

The invention discloses a special-shaped cable transition box, and relates to the technical field of ship cable laying, the special-shaped cable transition box comprises a transition box body, supporting legs, a branching frame and a one-way valve, box doors are symmetrically installed at the bottom end of the transition box body, and a plurality of groups of lead-in pipe fittings I with different diameters are arranged on one side of the transition box body; a plurality of second leading-in pipe fittings with different diameters are arranged on the other side of the transition box body, a clamping mechanism is arranged on the outer side of the transition box body, and the clamping mechanism and a ship bulkhead or a base form stable clamping limiting by adjusting two sets of supporting legs. And the cables are clamped and separated in order by synchronously utilizing the cable supporting blocks of the cable separating frame, the dual functions of equipment fixing and cable arrangement are achieved, and a cooling mechanism is arranged in the transition box body. Compared with a traditional transition box and a cable pipe of a special-shaped cable transition box, the angle of the cable pipe entering the transition box can be adjusted according to the actual arrangement condition, and the situation that a cable with a large diameter is bent by 90 degrees and is difficult to pull and release on site is avoided.

Description

Technical Field

[0001] This invention relates to the technical field of ship cable laying, and specifically to an irregularly shaped cable transition box. Background Technology

[0002] In the design of modern ship electrical systems, the cable laying pattern needs to be optimized according to the ship's spatial layout. For cable laying in the main deck area, the engineering practice often adopts a combination of "cable conduit + cable transition box". Under standard operating conditions, the cable conduit usually maintains a straight line and the path is extended through the cable transition boxes connected end to end.

[0003] When encountering spatial obstacles created by deck structures such as cabins or equipment bases, traditional straight pipe laying methods become impossible. In such cases, it is necessary to resolve path conflicts by setting up turning sections. It is worth noting that conventional continuous double-bend pipe structures have significant technical defects: the traction resistance of the cable in the continuous bending section increases exponentially, especially for large-section power cables, whose rigidity makes the insulation layer easily damaged during the threading operation; when multiple cables are stacked in a confined space, the Joule heat generated by current-carrying operation cannot be effectively dissipated, and insufficient bending radius will accelerate the aging process of the cable sheath material. Summary of the Invention

[0004] The purpose of this invention is to provide an irregularly shaped cable transition box to solve the above-mentioned defects caused by the prior art.

[0005] A non-standard cable transition box includes a transition box body, support legs, a cable distribution frame, and a one-way valve. The bottom of the transition box body has symmetrically installed doors. One side of the transition box body has multiple sets of inlet pipe fittings of different diameters, and the other side has multiple sets of inlet pipe fittings of different diameters. A clamping mechanism is installed on the outer side of the transition box body. This clamping mechanism achieves stable clamping and limiting by adjusting the two sets of support legs against the ship's bulkhead or base. Simultaneously, the cable support blocks of the cable distribution frame are used to orderly clamp and separate the cables, achieving the dual functions of equipment fixation and cable organization. The interior of the transition box body is equipped with a cooling mechanism. This cooling mechanism directly discharges hot air from the transition box body through the one-way valve and simultaneously draws in low-temperature external air through multiple sets of filtered vents, forming an efficient heat dissipation cycle.

[0006] Preferably, the clamping mechanism includes a slot, a wire divider, wire support blocks, a binding channel, a guide rail, a support foot, and a slider. The slot is symmetrically opened on the inner wall of the transition box, and the wire divider is connected to the outer side of the slot. Multiple sets of wire support blocks with different curvatures are evenly arranged at the top of the wire divider. The binding channel is symmetrically opened with wire support blocks. The guide rail is symmetrically arranged at the bottom of the transition box, and the bottom of the guide rail is connected to a slider. The bottom of the slider is connected to the top of the support foot.

[0007] Preferably, the guide rail is positioned and connected to the top of the support foot by a group of symmetrically arranged sliders, and the support foot adopts a standard "L" shaped cross-section profile.

[0008] Preferably, the transition box is connected to both sides of the splitter frame by a slot formed on its inner wall along the depth direction.

[0009] Preferably, the cooling mechanism includes a handle, a door, vents, a one-way valve, fasteners, and a plate fan. The handle is installed on the outside of the door, and vents are provided at equal intervals on the outside of the door. The one-way valve is installed on one side of the transition box, and a plate fan is fitted inside the transition box. The fasteners are installed through both sides of the transition box.

[0010] Preferably, the door is ventilated and connected to the interior of the transition box through equally spaced ventilation holes.

[0011] Preferably, the fasteners are symmetrically arranged along both sides of the transition box, and the branch frame is fixedly connected to the outer wall of the transition box by a group of symmetrical fasteners.

[0012] Compared with the prior art, the present invention has the following advantages: 1. Compared with traditional transition boxes, the cable conduit of the irregular cable transition box can be adjusted according to the actual layout, so as to avoid the situation where the cable with a large diameter is bent at 90 degrees and difficult to pull and lay on site. This greatly reduces the difficulty of on-site construction, protects the cable, and increases the service life of the cable.

[0013] 2. The cable tray supports cables of different diameters. Operators insert plastic cable ties into the binding groove to limit the outer side of the cable, thus achieving orderly separation and fixation of cables of various specifications and avoiding cable tangling and compression. Different diameter inlet pipes are compatible with various cable types, and classified introduction reduces electromagnetic interference.

[0014] 3. By setting up a distribution frame to carry out three-dimensional layered overhead cable treatment, on the one hand, the layered staggered layout avoids cable stacking and compression, reduces inter-line friction loss, and leaves maintenance channels, reducing the difficulty of later maintenance and fault replacement operations; on the other hand, by clamping and fixing the cables at equal intervals, a uniform heat dissipation gap is formed between the cables, which, together with the air flowing inside the box, achieves natural convection heat exchange, effectively improving the heat dissipation efficiency of the cable surface and avoiding excessive local temperature rise. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2This is a schematic diagram of the internal structure of the transition box in this invention; Figure 3 This is a top view of the internal structure of the transition box in this invention; Figure 4 This is a top view of the branch frame structure in this invention; Figure 5 This is a schematic diagram of the clamping mechanism in this invention.

[0016] in: 1. Transition box; 2. Handle; 3. Box door; 4. Vent hole; 5. Guide rail; 6. Support foot; 7. Clamping mechanism; 8. Inlet pipe fitting one; 9. Inlet pipe fitting two; 10. Cooling mechanism; 11. Slot; 12. Cable divider; 13. Cable support block; 14. Binding through slot; 15. One-way valve; 16. Fastener; 17. Plate fan; 18. Slider. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0018] like Figures 1 to 5 As shown, an irregularly shaped cable transition box includes a transition box body 1, support legs 6, a cable distribution frame 12, and a one-way valve 15. A box door 3 is symmetrically installed at the bottom of the transition box body 1. Multiple sets of inlet pipe fittings 8 of different diameters are provided on one side of the transition box body 1, and multiple sets of inlet pipe fittings 9 of different diameters are provided on the other side of the transition box body 1. A clamping mechanism 7 is provided on the outer side of the transition box body 1. The clamping mechanism 7 forms a stable clamping limit by adjusting the two sets of support legs 6 to the ship's bulkhead or base. Simultaneously, the cable support blocks 13 of the cable distribution frame 12 are used to orderly clamp and separate the cables, achieving the dual functions of equipment fixation and cable organization. A cooling mechanism 10 is provided inside the transition box body 1. The cooling mechanism 10 directly discharges hot air from the transition box body 1 through the one-way valve 15, and simultaneously draws in low-temperature external air through multiple sets of vents 4 with filtering functions, forming an efficient heat dissipation cycle.

[0019] In this embodiment, the clamping mechanism 7 includes a slot 11, a wire distribution frame 12, wire support blocks 13, a binding channel 14, a guide rail 5, a support foot 6, and a slider 18. The slot 11 is symmetrically opened on the inner wall of the transition box 1. The wire distribution frame 12 is connected to the outer side of the slot 11. Multiple sets of wire support blocks 13 with different curvatures are evenly spaced at the top of the wire distribution frame 12. The binding channel 14 is symmetrically opened with wire support blocks 13. The guide rail 5 is symmetrically arranged at the bottom of the transition box 1. The bottom of the guide rail 5 is connected to the slider 18. The bottom of the slider 18 is connected to the top of the support foot 6. The guide rail 5 is positioned and connected to the top of the support foot 6 through the symmetrically arranged sliders 18. The support foot 6 adopts a standard "L" shaped cross-section profile. The transition box 1 is connected to the two sides of the wire distribution frame 12 by the slot 11 opened along the depth direction on its inner wall.

[0020] Specifically: the operator inserts plastic cable ties into the binding groove 14 of the cable support block 13 at the top of the cable divider 12, and uses the elastic tension of the cable ties to radially constrain the outer sheath of the cable, so as to achieve orderly layering and reliable fixation of cables of various specifications, effectively avoiding cable cross-entanglement or deformation due to external pressure; the different diameter inlet pipes 8 configured on both sides of the transition box 1 can accurately adapt to multiple types of cables, and reduce electromagnetic coupling interference and improve signal transmission stability by introducing them separately.

[0021] In this embodiment, the cooling mechanism 10 includes a handle 2, a door 3, vents 4, a one-way valve 15, fasteners 16, and a plate fan 17. The handle 2 is installed on the outside of the door 3. Ventilation holes 4 are evenly spaced on the outside of the door 3. The one-way valve 15 is installed on one side of the transition box 1. The plate fan 17 is fitted inside the transition box 1. The fasteners 16 are installed through both sides of the transition box 1. The door 3 is connected to the interior of the transition box 1 through the evenly spaced vents 4. The fasteners 16 are symmetrically arranged through both sides of the transition box 1. The cable tray 12 is fixed to the outer wall of the transition box 1 through a group of symmetrical fasteners 16.

[0022] Specifically: Under the negative pressure generated by the operation of the plate fan 17, the low-temperature air outside is drawn into the box through the vent holes 4. The equidistant layout of the vent holes 4, together with the dustproof net, not only ensures the air intake efficiency, but also prevents water, oil or dust from the ship's deck from directly entering the box, ensuring the safety of the internal cables and electrical components, filling the space after the hot air is discharged, forming continuous convection, and thus continuously reducing the temperature of the transition box 1, ensuring a stable operating environment for the cables.

[0023] In practical applications, this type of irregularly shaped cable transition box includes the following tasks: The cable enters the transition box 1 through the inlet fittings 8 and 9 of different diameters on both sides of the transition box 1, and is then orderly separated by the cable divider 12. The cable divider 12 is fixed to the inner wall of the transition box 1 by the slots 11 on both sides. The slots 11 are opened along the longitudinal direction to ensure that the cable divider 12 is tightly attached to the transition box 1. Multiple sets of cable support blocks 13 with different curvatures are evenly spaced at the top of the cable distribution frame 12. The curved surface of the cable support block 13 fits the outer sheath of the cable. Multiple bundles of cables can be embedded into different grooves. The operator inserts plastic cable ties into the binding groove 14 of the cable support block 13 at the top of the cable distribution frame 12. The elastic tension of the cable ties is used to radially constrain the outer sheath of the cable, so as to achieve orderly layering and reliable fixation of cables of various specifications. The plate fan 17 is installed close to the inner wall of the transition box 1. Its power supply is provided by the ship's low-voltage power distribution system. When the heat generated by the operation of the cable causes the temperature inside the box to rise to a set threshold, the plate fan 17 starts and generates axial airflow thrust through the rotating blades, forcibly pushing the hot air inside the box to flow in a specific direction. The one-way valve 15 installed on one side of the transition box 1 is a key heat exhaust channel. Its internal structure adopts a spring-loaded valve structure, which only allows airflow to flow unidirectionally from inside the box to outside the box. The air inlets 4, which are equidistantly spaced on the outer side of the door 3, are fitted with 100-mesh metal dust filters on their inner walls. Under the negative pressure generated by the operation of the plate fan 17, the low-temperature air from outside is drawn into the box through the air inlets 4, filling the space left by the exhaust of hot air and forming continuous convection. The handle 2, which is installed on the outer side of the door 3, is not only used for manually opening and closing the door 3, but also provides an operating fulcrum during maintenance, making it easy to check the operating status of the plate fan 17 or clean the dust filters below the air inlets 4.

[0024] When the plate fan 17 starts, the hot air in the transition chamber 1 is forced to the one-way valve 15, which opens the one-way valve 15, and the hot air inside the transition chamber 1 is discharged, creating a negative pressure inside the chamber. The cold air outside is filtered and drawn in through the vents 4 that are equally spaced on the outside of the chamber door 3, forming a convection circulation of cold air from the outside during the heat dissipation process.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An irregularly shaped cable transition box, characterized in that: The system includes a transition box (1), support feet (6), a cable distribution frame (12), and a one-way valve (15). The bottom of the transition box (1) is symmetrically equipped with a door (3). One side of the transition box (1) is provided with multiple sets of inlet pipe fittings of different diameters (8), and the other side of the transition box (1) is provided with multiple sets of inlet pipe fittings of different diameters (9). The outer side of the transition box (1) is provided with a clamping mechanism (7). The clamping mechanism (7) forms a stable clamping limit with the ship's bulkhead or base by adjusting the two sets of support feet (6). At the same time, the cable support blocks (13) of the cable distribution frame (12) are used to clamp and separate the cables in an orderly manner, realizing the dual functions of equipment fixation and cable management. The interior of the transition box (1) is provided with a cooling mechanism (10). The cooling mechanism (10) directly discharges the hot air of the transition box (1) through the one-way valve (15) and simultaneously draws in the low-temperature air from the outside through multiple sets of vents (4) with filtering function, forming an efficient heat dissipation cycle.

2. The irregularly shaped cable transition box according to claim 1, characterized in that: The clamping mechanism (7) includes a slot (11), a wire divider (12), a wire support block (13), a binding channel (14), a guide rail (5), a support foot (6), and a slider (18). The slot (11) is symmetrically opened on the inner wall of the transition box (1). The wire divider (12) is connected to the outer side of the slot (11). Multiple sets of wire support blocks (13) with different curvatures are evenly arranged at the top of the wire divider (12). The binding channel (14) is symmetrically opened with wire support blocks (13). The guide rail (5) is symmetrically arranged at the bottom of the transition box (1). The bottom of the guide rail (5) is connected to the slider (18). The bottom of the slider (18) is connected to the top of the support foot (6).

3. The irregularly shaped cable transition box according to claim 2, characterized in that: The guide rail (5) is positioned and connected to the top of the support foot (6) by a group of symmetrically arranged sliders (18), and the support foot (6) adopts a standard "L" shaped cross section profile.

4. The irregularly shaped cable transition box according to claim 3, characterized in that: The transition box (1) is connected to both sides of the splitter frame (12) by a slot (11) provided on its inner wall along the depth direction.

5. The irregularly shaped cable transition box according to claim 4, characterized in that: The cooling mechanism (10) includes a handle (2), a door (3), a vent (4), a one-way valve (15), a fastener (16), and a plate fan (17). The handle (2) is installed on the outside of the door (3), and the door (3) has vents (4) at equal intervals on the outside.

6. The irregularly shaped cable transition box according to claim 5, characterized in that: The one-way valve (15) is installed on one side of the transition box (1), and a plate fan (17) is fitted inside the transition box (1). The fastener (16) is installed through both sides of the transition box (1).

7. The irregularly shaped cable transition box according to claim 6, characterized in that: The door (3) is connected to the interior of the transition box (1) through equally spaced ventilation holes (4).

8. The irregularly shaped cable transition box according to claim 7, characterized in that: The fasteners (16) are symmetrically arranged along both sides of the transition box (1), and the branch frame (12) is fixedly connected to the outer wall of the transition box (1) by a group of symmetrical fasteners (16).

9. A non-circular cable transition box according to claim 8, characterized in that: The operation method is as follows: The cable enters the box through the inlet fittings 1 (8) and 2 (9) of different diameters on both sides of the transition box (1), and is then orderly separated by the distribution frame (12). The distribution frame (12) is fixed to the inner wall of the transition box (1) by the slots (11) on both sides. The slots (11) are opened along the longitudinal direction to ensure that the distribution frame (12) and the transition box (1) fit tightly. The arc-shaped surface of the cable support block (13) fits the outer sheath of the cable, and multiple bundles of cables can be embedded into different grooves. The operator puts the plastic cable ties through the cable. The cable tray (12) is placed in the binding groove (14) of the top cable support block (13) of the cable tray (12). The elastic tension of the cable tie is used to radially constrain the outer sheath of the cable, so as to achieve orderly layering and reliable fixation of multi-specification cables. The plate fan (17) is installed close to the inner wall of the transition box (1). Its power supply is supplied by the ship's low-voltage power distribution system. When the cable operation generates heat and causes the temperature inside the box to rise to a set threshold, the plate fan (17) starts. It generates axial airflow thrust through the rotating blades, which forces the hot air inside the box to flow in a specific direction. 1) The one-way valve (15) installed on one side is the key heat dissipation channel. Its internal structure adopts a spring-loaded valve structure, which only allows airflow to flow unidirectionally from the inside of the box to the outside. The vent holes (4) opened at equal intervals on the outside of the box door (3) serve as air inlets. The inner wall of the vent holes is embedded with a 100-mesh metal dustproof mesh. Under the negative pressure generated by the operation of the plate fan (17), the low-temperature air outside is drawn into the box through the vent holes (4), filling the space after the hot air is discharged, forming a continuous convection. The handle (2) is installed on the outside of the box door (3). The handle (2) is not only used by people The switch box door (3) also provides an operating fulcrum during maintenance, making it easy to check the operating status of the plate fan (17) or clean the dust screen below the vent (4). When the plate fan (17) is started, the hot air in the transition box (1) is forced to the one-way valve (15), which opens the one-way valve (15), and the hot air inside the transition box (1) is discharged. A negative pressure is formed inside the box, and the low-temperature air outside is filtered and drawn in through the vent (4) opened at equal intervals on the outside of the box door (3). During the heat dissipation process, the cold air from the outside is circulated by air inflow.

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