Groove type cable bridge

By incorporating features such as compensating joints, bolt and nut assemblies, and limiting ribs, the problem of dust corrosion caused by gaps in trough-type cable trays has been solved. This has enabled tight overlap of the cable trays and dust protection, allowing them to adapt to thermal expansion and contraction, reducing grounding resistance, and improving the protective effect of the cable trays.

CN224110812UActive Publication Date: 2026-04-10CHINA CONSTR SECOND ENG BUREAU LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-30
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

When using existing trough-type cable trays, the height difference between the top surface of the expansion joint and the bottom surface of the sliding cover plate creates gaps, allowing acidic or alkaline dust to enter the interior of the cable tray, corroding and oxidizing the cables.

Method used

The cable tray is connected using compensating joints and bolt and nut assemblies, combined with L-shaped sections and flange design to achieve a tight fit and prevent gaps; the terminals and jumpers reduce grounding resistance; the terminals are covered with protective shells to prevent dust from affecting them; the inner side of the cable tray is equipped with limiting ribs and rubber sleeves to prevent the cover plate from slipping and dust from entering.

Benefits of technology

To achieve tight overlap of cable trays, prevent acidic or alkaline dust from entering, protect cables, reduce grounding resistance, adapt to thermal expansion and contraction, prevent dust accumulation, and improve reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a groove type cable bridge which comprises the components of a first bridge which comprises a first bridge body and a first cover plate which is assembled on the first bridge body; the second bridge frame is spaced from the first bridge frame and comprises a second bridge frame body and a second cover plate assembled on the second bridge frame body; the compensation joint is lapped between the first bridge frame and the second bridge frame and is provided with an oblong hole; the bolt and nut assembly penetrates through the first bridge body and the oblong hole respectively; the second bridge body and the oblong hole are screwed tightly; the wiring terminals are respectively arranged on the first bridge body and the second bridge body; the jumper wire is used for connecting the wiring terminals of the first bridge body and the second bridge body; the first side plate of the first bridge body and the second side plate of the second bridge body comprise vertical sections and L-shaped sections, and the outer side faces of the flanges of the first cover plate and the second cover plate and the outer side faces of the vertical sections are located on the same vertical face. According to the utility model, tight lap joint of the bridge is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electromechanical engineering, especially a groove type cable bridge. BACKGROUND

[0002] As China utility model patent No. CN217388121U discloses a kind of corrosion-resistant groove type cable bridge, it includes: cable bridge first part and cable bridge second part, cable bridge second part is fixedly connected with telescopic frame in the end close to cable bridge first part, cable bridge first part is set with telescopic slot matched with telescopic frame in the end close to cable bridge second part, by pulling telescopic frame in telescopic slot, cable bridge first part and cable bridge second part can be mutually close or far away, when its use cover plate, since telescopic joint top surface and its sliding cover plate bottom surface still have height difference, this height difference is caused by the slot of clamping sliding cover plate, lead to there is large gap to make acidic or alkaline dust in environment drift into bridge interior, when air humidity rises, it is easy to corrode and oxidize internal cable. UTILITY MODEL CONTENT

[0003] The utility model solves the technical problem to provide a kind of groove type cable bridge, it is favorable to bridge close joint, can prevent acidic or alkaline dust from entering bridge interior.

[0004] To solve the above-mentioned problems and adopt a kind of groove type cable bridge, it includes:

[0005] First bridge, it includes first bridge body and first cover plate assembled on first bridge body;

[0006] Second bridge, it is spaced from first bridge, it includes second bridge body and second cover plate assembled on second bridge body;

[0007] Compensation joint, it is connected between first bridge and second bridge, long round hole is arranged thereon;

[0008] Bolt nut assembly, it is respectively threaded first bridge body and long round hole;And second bridge body and long round hole and is tightened;

[0009] Terminal, it is respectively installed on first bridge body and second bridge body;

[0010] Crossing line, it connects the terminal of first bridge body and second bridge body;

[0011] The first side plate of the first bridge body and the second side plate of the second bridge body include vertical section and L-shaped section, the flange outer side surface of the first cover plate and the second cover plate is on the same vertical surface with the vertical section outer side surface.

[0012] With the structure, the compensation joint, the first bridge and the second bridge can be closely attached and are not affected by the cover plate, after the L-shaped section and the flange are spliced, the overall outer side is still a vertical surface, thereby closely attaching to the inner side of the compensation joint, preventing a gap due to misalignment from being generated, thereby avoiding dust and industrial dust from entering from the splicing position;

[0013] The compensation joint is used for expansion compensation under the influence of temperature factors, the long circular hole is beneficial for the relative movement of the compensation joint, the first bridge and the second bridge to adapt to the length change of thermal expansion and cold contraction, and the terminal and the jumper wire are used for reducing the grounding resistance of the bridge.

[0014] As a further improvement of the utility model, the first character-shaped protective shell is arranged on the terminal, the first character-shaped protective shell is slidably connected with the first folding edge on the two sides, the first knob is arranged above and below the terminal respectively and is rotatably installed on the first bridge body and the second bridge body respectively, the first limiting piece is fixed on the first knob, and the first limiting piece can be pressed on the first folding edge on the two sides of the first character-shaped protective shell by rotating the first knob.

[0015] With the structure, the first character-shaped protective shell can protect the terminal from dust and accumulated dust falling from above, and the first limiting piece is driven to rotate by the first knob, which is beneficial for the installation and dismounting of the first character-shaped protective shell.

[0016] As a further improvement of the utility model, the first groove is arranged on the two sides of the compensation joint, the convex plate is arranged on the upper and lower inner walls of the first groove, the second groove is arranged on the first folding edge of the first character-shaped protective shell, and the second groove is clamped with the convex plate.

[0017] With the structure, the first character-shaped protective shell and the compensation joint can be clamped, and the compensation joint and the first character-shaped protective shell can be synchronously moved.

[0018] As a further improvement of the utility model, the second character-shaped protective shell is arranged on the first character-shaped protective shell, the second folding edge of the second character-shaped protective shell is slidably connected with the second knob, the second knob is installed on the compensation joint and is arranged above and below the second character-shaped protective shell, the second limiting piece is fixed on the second knob, the second limiting piece can be pressed on the second folding edge on the two sides of the second character-shaped protective shell by rotating the second knob, and the second character-shaped protective shell covers the jumper wire.

[0019] With the structure, the second character-shaped protective shell is beneficial for preventing the jumper wire from accumulating dust and dust, and the second knob is rotated, which is beneficial for the installation and dismounting of the second character-shaped protective shell.

[0020] As further improvement of the utility model, the first bridge body and the second bridge body are provided with limiting ribs on the inner side; the first cover plate and the second cover plate are provided with limiting bolts; the limiting bolts abut against the limiting ribs.

[0021] With the structure, the relative sliding between the cover plate and the bridge body during use is prevented.

[0022] As further improvement of the utility model, the limiting ribs are provided with horizontal ribs on the lower side; the horizontal ribs abut against the lower end of the limiting bolts.

[0023] As further improvement of the utility model, the limiting bolts are prevented from being too long.

[0024] As further improvement of the utility model, the first character-shaped protective shell is provided with a rubber cylinder at the outer port; the rubber cylinder is connected with the first character-shaped protective shell through the upper and lower bolts, and is fastened on the first character-shaped protective shell by the nut.

[0025] With the structure, the port of the first character-shaped protective shell is sealed, the dust is prevented from entering in all directions, and the terminal and the jumper wire are protected.

[0026] The utility model is beneficial to the close joint of the bridge, and prevents the acidic or alkaline dust from entering the inside of the bridge. DRAWINGS

[0027] Figure 1 It is a structural schematic view of an embodiment.

[0028] Figure 2 It is a disassembled structural schematic view of an embodiment.

[0029] Figure 3 It is a structural schematic view of another end of an embodiment. Figure 2

[0030] Figure 4 It is a structural schematic view of a single bridge.

[0031] Reference signs: 1, first bridge; 101, first bridge body; 102, first cover plate; 103, first side plate; 104, vertical section; 105, L-shaped section; 106, flange

[0032] 2, second bridge; 201, second bridge body; 202, second cover plate; 203, second side plate

[0033] 3, compensation joint; 301, long circular hole; 302, first groove; 303, convex plate

[0034] 4, bolt and nut assembly; 5, terminal; 6, jumper wire ​

[0035] 7. The first herringbone protective shell; 701. The first folded edge; 702. The second groove;

[0036] 8. The first knob; 801. The limiting piece;

[0037] 9. The second herringbone protective shell; 901. The second folded edge;

[0038] 10. The second knob; 1001. The second limiting piece;

[0039] 11. The limiting rib; 12. The limiting bolt; 13. The transverse rib; 14. The rubber cylinder; 15. The end bolt; 16. The nut. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0041] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0042] Embodiment 1

[0043] As shown in the drawings, a slot type cable bridge comprises: Figures 1-4

[0044] A first bridge 1 comprising a first bridge body 101 and a first cover plate 102 assembled on the first bridge body 101;

[0045] ​The second bridge 2, which is spaced from the first bridge 1, comprises a second bridge body 201 and a second cover plate 202 assembled on the second bridge body 201;

[0046] The compensation joint 3 is lapped between the first bridge 1 and the second bridge 2, and a long circular hole 301 is arranged on the compensation joint 3;

[0047] The bolt-nut assembly 4 is respectively threaded through the first bridge body 101 and the long circular hole 301, and the second bridge body 201 and the long circular hole 301, and is tightened;

[0048] The terminal 5 is respectively mounted on the first bridge body 101 and the second bridge body 201;

[0049] The jumper 6 connects the terminals 5 of the first bridge body 101 and the second bridge body 201;

[0050] The first side plate 103 of the first bridge body 101 and the second side plate 203 of the second bridge body 201 comprise a vertical section 104 and an L-shaped section 105, and the outer side of the flange 106 of the first cover plate 102 and the second cover plate 202 is on the same vertical plane as the outer side of the vertical section 104.

[0051] With such a structure, the compensation joint 3 and the first bridge 1 and the second bridge 2 can be closely fitted, and the overall outer side remains a vertical plane after the L-shaped section 105 and the flange 106 are spliced, thereby closely fitting the inner side of the compensation joint 3 and preventing gaps from being generated due to misalignment, thereby preventing dust and industrial dust from entering from the lapped position;

[0052] The compensation joint 3 is used for expansion compensation under the influence of temperature factors, the long circular hole 301 facilitates the relative movement of the compensation joint 3 and the first bridge 1 and the second bridge 2 to adapt to the length change of thermal expansion and contraction, and the terminal 5 and the jumper 6 are used to reduce the grounding resistance of the bridge.

[0053] In the embodiment, a first hairpin-shaped protective shell 7 is arranged on the terminal 5, two first folding edges 701 of the first hairpin-shaped protective shell 7 are slidingly connected to a first knob 8, the first knob 8 is respectively located above and below the terminal 5, and is rotatably mounted on the first bridge body 101 and the second bridge body 201, a first limiting piece 801 is fixed on the first knob 8, and the first limiting piece 801 can be pressed on the two first folding edges 701 of the first hairpin-shaped protective shell 7 when the first knob 8 rotates.

[0054] With such a structure, the first hairpin-shaped protective shell 7 can protect the terminal 5 from falling dust and dust accumulation above, and the first knob 8 drives the first limiting piece 801 to rotate, which is conducive to the installation and disassembly of the first hairpin-shaped protective shell 7.

[0055] In this embodiment, the compensation section 3 has a first groove 302 on both sides, and a protrusion 303 is provided on the upper and lower inner walls of the first groove 302; a second groove 702 is provided on the first folded edge 701 on both sides of the first zigzag protective shell 7; the second groove 702 is engaged with the protrusion 303.

[0056] With this structure, the first U-shaped protective shell 7 and the compensation section 3 can be snapped together, which is beneficial for the compensation section 3 to move synchronously with the first U-shaped protective shell 7.

[0057] In this embodiment, the first U-shaped protective shell 7 is covered by a second U-shaped protective shell 9. The second folded edge 901 of the second U-shaped protective shell 9 is slidably connected to a second knob 10. The second knob 10 is installed on the compensating joint 3 and is located above and below the second U-shaped protective shell 9. A second limiting piece 1001 is fixed on the second knob 10. The second limiting piece 1001 can press against the second folded edges 901 on both sides of the second U-shaped protective shell 9 as the second knob 10 rotates. The second U-shaped protective shell 9 covers the jumper wire 6.

[0058] With this structure, the second U-shaped protective shell 9 helps prevent dust and powder accumulation on the jumper wire 6, and the rotation of the second knob 10 facilitates the installation and removal of the second U-shaped protective shell 9.

[0059] In this embodiment, limiting ribs 11 are provided on the inner sides of the first cable tray body 101 and the second cable tray body 201; limiting bolts 12 are passed through the first cover plate 102 and the second cover plate 202, and the limiting bolts 12 abut against the limiting ribs 11.

[0060] This structure helps prevent relative slippage between the cover plate and the cable tray body during use.

[0061] like Figure 4 As shown, the limiting rib 11 is positioned at an interval and opposite to the limiting bolt 12 on a section away from the overlapping section, thereby preventing the cover plate from sliding left and right.

[0062] In this embodiment, a transverse rib 13 is provided on the lower side of the limiting rib 11, and the transverse rib 13 abuts against the lower end of the limiting bolt 12.

[0063] In this embodiment, the limiting bolt 12 is prevented from passing through the length.

[0064] In this embodiment, a rubber cylinder 14 is placed at the outer port of the first Z-shaped protective shell 7, and an end bolt 15 is used to connect the rubber cylinder 14 and the first Z-shaped protective shell 7 from top to bottom, and a nut 16 is tightened on the first Z-shaped protective shell 7.

[0065] With the structure, the first few character-shaped protective shell 7 port sealing is facilitated, dust is prevented from entering in all directions, and the wiring terminal and jumper wire are protected.

[0066] The above is a further detailed description of the utility model in combination with specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For those skilled in the art to which the utility model belongs, without departing from the concept of the utility model, a number of equivalent substitutions or obvious modifications can be made, and the performance or use is the same, which should be regarded as belonging to the protection scope of the utility model.

Claims

1. A trough cable bridge, characterized by The utility model relates to a kind of cable bridge, including: First bridge (1), it includes first bridge body (101) and first cover plate (102) assembled on first bridge body (101); Second bridge (2), it is spaced with first bridge (1), it includes second bridge body (201) and second cover plate (202) assembled on second bridge body (201); Compensation section (3), it is overlapped between first bridge (1) and second bridge (2), long round hole (301) is provided on it; Bolt nut assembly (4), it is respectively threaded first bridge body (101) and long round hole (301);And second bridge body (201) and long round hole (301) and is tightened; Terminal (5), it is respectively installed on first bridge body (101) and second bridge body (201); Crossing wire (6), it connects the terminal (5) of first bridge body (101) and second bridge body (201); The first side plate (103) of the first bridge body (101) and the second side plate (203) of the second bridge body (201) include vertical section (104) and L type section (105), the flange (106) outside of the first cover plate (102) and the second cover plate (202) is on the same vertical surface with the vertical section (104) outside.

2. The cable tray of claim 1, wherein First hairpin-shaped protective shell (7) is covered on the terminal (5), both sides first folding edge (701) of first hairpin-shaped protective shell (7) is slidably connected first knob (8), and first knob (8) is located above and below terminal (5) respectively and can be rotatably installed on first bridge body (101) and second bridge body (201) respectively, first limiting sheet (801) is fixed on first knob (8), and first limiting sheet (801) can be pressed on both sides first folding edge (701) of first hairpin-shaped protective shell (7) with the rotation of first knob (8).

3. The cable tray of claim 2, wherein First recess (302) is formed on the two side surfaces of the compensation section (3), and convex plate (303) is arranged on the upper and lower inner walls of first recess (302);Second recess (702) is formed on both sides first folding edge (701) of first hairpin-shaped protective shell (7);Second recess (702) is clamped with convex plate (303).

4. The cable tray of claim 3, wherein Second hairpin-shaped protective shell (9) is covered on first hairpin-shaped protective shell (7), second folding edge (901) of second hairpin-shaped protective shell (9) is slidably connected second knob (10), and second knob (10) is installed on compensation section (3) and is located above and below second hairpin-shaped protective shell (9), second limiting sheet (1001) is fixed on second knob (10), and second limiting sheet (1001) can be pressed on both sides second folding edge (901) of second hairpin-shaped protective shell (9) with the rotation of second knob (10), and second hairpin-shaped protective shell (9) is covered on crossing wire (6).

5. The cable tray of claim 4, wherein The first bridge body (101) and the second bridge body (201) are provided with limiting ribs (11) on the inner sides; the first cover plate (102) and the second cover plate (202) are provided with limiting bolts (12) penetrating therethrough, and the limiting bolts (12) abut against the limiting ribs (11).

6. The cable tray of claim 5, wherein The limiting ribs (11) are provided with transverse ribs (13) on the lower sides, and the transverse ribs (13) abut against the lower ends of the limiting bolts (12).

7. The cable tray of claim 4, wherein The outer end of the first zigzag-shaped protective shell (7) is provided with a rubber cylinder (14), and end bolts (15) are used to penetrate the rubber cylinder (14) and the first zigzag-shaped protective shell (7) from top to bottom, and nuts (16) are used to be screwed on the first zigzag-shaped protective shell (7).

Citation Information

Patent Citations

  • Corrosion-resistant groove type cable bridge

    CN217388121U