Connecting device of trunking bridge and distribution box

Abstract

The utility model discloses a connecting device of a trunking bridge and a distribution box. The connecting device comprises a butt joint pipe, a cable fixing assembly, a grounding wire and an insulating plate. The butt-joint pipe is used for being installed in cooperation with a top opening of the distribution box, a lower opening of the butt-joint pipe is provided with a reverse edge extending outwards, the reverse edge is located in the distribution box and connected with the top face of the distribution box through first bolts, and the side face of the butt-joint pipe is connected with the trunking bridge through second bolts. The cable fixing assembly comprises flat steel which is arranged in the butt joint pipe and is used for pressing a cable, and a first screw rod and a second screw rod which are used for fixing the flat steel on the inner wall of the butt joint pipe; the grounding wire is arranged outside the butt joint pipe and is connected with the first bolt and the second bolt; and the insulating plate is arranged at the lower opening of the butt joint pipe and is provided with a cable through hole for allowing a cable to pass through. Therefore, the cable is prevented from being scratched during cable laying, wiring and maintenance at the joint of the bridge and the distribution box, and the construction cost of fireproof plugging and edge closing at the joint of the bridge and the distribution box is saved.

Description

Technical Field

[0001] This utility model relates to the field of building electrical construction, and in particular to a connection device between a cable tray and a distribution box. Background Technology

[0002] In the process of building electrical construction, there is a large amount of work involved in connecting cable trays to distribution boxes. Furthermore, there are numerous issues with sealing and plugging after the connection, and these shortcomings have persisted for a long time without further improvement. Existing technology has the following drawbacks: 1. Currently, the connection between cable trays and distribution boxes is simply a matter of drilling a hole in the top of the distribution box and inserting the cable tray. Fireproof sealing after the cables inside the cable tray connect to the distribution box switches typically uses fireproof putty or fireproof bags. However, fireproof putty is prone to melting and falling when heated, damaging components inside the distribution box, while fireproof bags suffer from incomplete sealing and excessive cost. 2. According to construction specifications, cable trays must be grounded at both ends. The connection between the cable tray and the distribution box is the tail grounding point. The original grounding method generally involves bridging the cable tray wall and the outside of the distribution box wall, which affects aesthetics. 3. When connecting traditional cable trays to distribution boxes, there is no fixed point or fixing measure for the cables entering the distribution box. 4. When connecting traditional cable trays to distribution boxes, the cables need to be drilled at the top of the distribution box, and there are sharp edges around the drilled holes, which can easily scratch the cables during cable laying, splicing, and maintenance. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a connection device between cable trays and distribution boxes, which can solve problems such as cable laying, wiring, and preventing cable scratches during maintenance at the connection between cable trays and distribution boxes, and save on construction costs for fireproof sealing and edge finishing at the connection between cable trays and distribution boxes.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A connection device between a cable tray and a distribution box, comprising:

[0006] The connecting pipe is used to mate with the opening on the top of the distribution box for installation. The lower opening of the connecting pipe has an outwardly extending reverse edge. The reverse edge is located inside the distribution box and is connected to the top surface of the distribution box by a first bolt. The side of the connecting pipe is connected to the cable tray by a second bolt.

[0007] The cable fixing assembly includes a flat steel disposed inside the connector for clamping the cable, a first screw and a second screw for fixing the flat steel to the inner wall of the connector;

[0008] A grounding wire is installed outside the connecting pipe and connects the first bolt and the second bolt;

[0009] An insulating plate is provided at the lower opening of the connector, and the insulating plate is provided with a through hole for accommodating the cable.

[0010] A connection device for cable trays and distribution boxes according to an embodiment of this utility model has at least the following beneficial effects: An opening is made in the top of the distribution box according to the dimensions of the cable tray. After the cable tray is connected to the distribution box, the connection device is placed from inside the distribution box to the connection point between the cable tray and the top of the distribution box. It is fixed to the distribution box using a first bolt and to the cable tray using a second screw. Then, the incoming cable is connected to the various switching components inside the distribution box. The lower opening of the connecting pipe has an outwardly extending reverse edge, which prevents the cable from being scratched at the point of entry and exit from the distribution box. The cable fixing assembly uses a first screw and a second screw to fix the flat steel to the inner wall of the connecting pipe to press the cable, solving the problem of cable fixing at the inlet of the distribution box. A grounding wire connects the first bolt and the second bolt, and the grounding wire is connected from inside the distribution box to the grounding copper busbar, achieving effective grounding at the tail of the cable tray and solving the aesthetic problem of grounding at the tail of the cable tray. An insulating plate is used to seal the connection between the distribution box and the cable tray, solving the problem of fireproof sealing at the connection point. Therefore, this method solves the problems of cable laying, wiring, and preventing cable scratches during maintenance at the connection between cable trays and distribution boxes, and saves on the construction costs of fireproof sealing and edge finishing at the connection between cable trays and distribution boxes.

[0011] According to some embodiments of this utility model, the connecting tube is a square tube, and the reverse side is provided with 4 pieces, which are respectively arranged on the 4 sides of the lower opening.

[0012] The advantages are: the square tube design of the connector facilitates the installation of flat steel to press the cable tightly against the inner wall of the connector, and the four plates on the reverse side facilitate installation with the distribution box while preventing cable scratches.

[0013] According to some embodiments of the present invention, the cable fixing assembly is disposed on the inner wall of one side of the connector, and the connector is provided with a side opening on the inner wall of the side opposite to the cable fixing assembly.

[0014] The advantage is that this side opening design makes it easier to install flat steel to fix the cable to the inner wall of the connector.

[0015] According to some embodiments of the present invention, the reverse sides of the left and right sides of the lower opening are provided with first mounting holes, which are used to install the first bolt.

[0016] The advantage is that by setting the first mounting holes on the two opposite sides and installing the first bolts, the connecting device can be fixedly installed to the distribution box.

[0017] According to some embodiments of this utility model, two second mounting holes are provided on the left and right sides of the connecting pipe, and the second mounting holes are used to install the second bolt.

[0018] The advantage is that by setting second mounting holes on both sides of the connector and installing second bolts, the connecting device can be fixedly installed to the cable tray.

[0019] According to some embodiments of the present invention, a side groove is provided at the lower opening, and the side groove is used to install and accommodate the insulating plate.

[0020] The advantage is that the side groove facilitates the installation and fixing of the insulating board at the lower opening.

[0021] According to some embodiments of this utility model, the insulating plate is provided with a third mounting hole near the front side, and the third mounting hole is connected to the distribution box by a third bolt.

[0022] The advantage is that the third mounting hole and the third bolt facilitate the fixed connection between the insulation board and the distribution box, preventing the insulation board from moving.

[0023] According to some embodiments of this utility model, the flat steel is provided with mounting through holes on both the left and right sides to cooperate with the first screw and the second screw.

[0024] The advantage is that the flat steel is equipped with through holes for installation with the first and second screws.

[0025] According to some embodiments of the present invention, the top of the first screw and the second screw are provided with a wing nut.

[0026] The advantage is that the wing nut makes it easy to tighten by hand to secure the flat steel to the inner wall of the connector and fix the cable.

[0027] According to some embodiments of this utility model, the connecting device is made of galvanized steel plate.

[0028] The advantages are that galvanized steel sheets have high structural strength and are not prone to rust.

[0029] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is an installation diagram of an embodiment of the present utility model;

[0032] Figure 2 for Figure 1 A side view illustration;

[0033] Figure 3 for Figure 1 A schematic diagram of the takeover by China;

[0034] Figure 4 for Figure 1 A schematic diagram of medium flat steel;

[0035] Figure 5 for Figure 1 A schematic diagram of the insulating plate.

[0036] Reference numerals: Connecting pipe 100, distribution box 110, reverse edge 120, first bolt 130, cable tray 140, second bolt 150, flat steel 160, first screw 170, second screw 180, grounding wire 190, insulating plate 200, side opening 210, first mounting hole 220, second mounting hole 230, side groove 240, third mounting hole 250, third bolt 260, mounting through hole 270, wing nut 280, through hole 290. Detailed Implementation

[0037] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0038] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0041] The following is for reference. Figure 1-Figure 5 A connection device between a cable tray and a distribution box is described in detail with reference to a specific embodiment. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0042] like Figure 1-Figure 2 As shown, a connection device between a cable tray 140 and a distribution box 110 includes a connecting pipe 100, a cable fixing assembly, a grounding wire 190, and an insulating plate 200.

[0043] The connecting pipe 100 is used to mate with the opening on the top of the distribution box 110. The lower opening of the connecting pipe 100 has an outwardly extending reverse edge 120. The reverse edge 120 is located inside the distribution box 110 and is connected to the top surface of the distribution box 110 by a first bolt 130. The side of the connecting pipe 100 is connected to the cable tray 140 by a second bolt 150. The cable fixing assembly includes a flat steel 160 disposed inside the connecting pipe 100 for pressing the cable, a first screw 170 and a second screw 180 for fixing the flat steel 160 to the inner wall of the connecting pipe 100. The grounding wire 190 is disposed outside the connecting pipe 100 and connects the first bolt 130 and the second bolt 150. The insulating plate 200 is disposed in the lower opening of the connecting pipe 100 and has a through hole 290 for accommodating the cable. A hole is drilled in the top of the distribution box 110 according to the dimensions of the cable tray 140. After the cable tray 140 is connected to the distribution box 110, the connecting device is placed from inside the distribution box 110 to the connection point between the top of the distribution box 110 and the cable tray. It is fixed to the distribution box 110 using the first bolt 130 and fixed to the cable tray 140 using the second screw. Then, the incoming cable is connected to the various switching components inside the distribution box 110. The lower opening of the connecting pipe 100 has an outwardly extending reverse edge 120, which prevents the cable from being scratched at the point of entry and exit of the distribution box 110. The cable fixing assembly uses the first screw 170 and the second screw 180 to fix the flat steel 160 to the inner wall of the connecting pipe 100 to press the cable, thus solving the problem of cable fixing at the inlet of the distribution box 110. The grounding wire 190 connects the first bolt 130 and the second bolt 150, extending from inside the distribution box 110 to the grounding copper busbar, effectively grounding the tail of the cable tray 140 and addressing the aesthetic issue of grounding at the tail of the cable tray. An insulating plate 200 seals the connection between the distribution box 110 and the cable tray 140, solving the fireproofing problem at the connection point. Therefore, this solution addresses issues related to cable laying, wiring, and maintenance at the connection point between the cable tray and the distribution box 110, preventing cable scratches and reducing construction costs associated with fireproofing and finishing at the connection point.

[0044] Specifically, if Figure 3As shown, the connecting pipe 100 is a square tube, with four pieces on the reverse side 120, respectively located on the four sides of the lower opening. The square tube design of the connecting pipe 100 facilitates the installation of the flat steel 160 to press the cable tightly against the inner wall of the connecting pipe 100. The four pieces on the reverse side 120 facilitate installation with the distribution box 110 and prevent cable damage. Furthermore, a cable fixing assembly is located on one side of the inner wall of the connecting pipe 100, and a side opening 210 is provided on the inner wall of the connecting pipe 100 opposite to the cable fixing assembly. This side opening 210 facilitates the installation of the flat steel 160 to fix the cable to the inner wall of the connecting pipe 100. Additionally, the reverse sides 120 on both sides of the lower opening have first mounting holes 220 for installing first bolts 130. Thus, by providing first mounting holes 220 on the left and right reverse sides 120 and installing first bolts 130, the connecting device can be fixedly installed with the distribution box 110. Furthermore, two second mounting holes 230 are provided on each of the left and right sides of the connecting pipe 100, and the second mounting holes 230 are used to install the second bolts 150. Thus, by providing the second mounting holes 230 on both sides of the connecting pipe 100 and installing the second bolts 150, the connecting device can be fixedly installed to the cable tray 140. It should be noted that a side groove 240 is provided at the lower opening, and the side groove 240 is used to accommodate the insulating plate 200. The side groove 240 facilitates the installation and fixing of the insulating plate 200 at the lower opening.

[0045] like Figure 5 As shown, the insulating plate 200 has a third mounting hole 250 near its front side, and the third mounting hole 250 is connected to the distribution box 110 by a third bolt 260. The third mounting hole 250 and the third bolt 260 facilitate the fixed connection between the insulating plate 200 and the distribution box 110 and prevent the insulating plate 200 from moving.

[0046] like Figure 4 As shown, the flat steel 160 has mounting through holes 270 on both its left and right sides, which mate with the first screw 170 and the second screw 180. The flat steel 160 is provided with mounting through holes 270 for mounting with the first screw 170 and the second screw 180.

[0047] like Figure 1-Figure 3 As shown, the top of the first screw 170 and the second screw 180 are provided with a wing nut 280. The wing nut 280 is provided to facilitate hand tightening of the flat steel 160 to fix the cable to the inner wall of the connector 100.

[0048] It is worth mentioning that the connecting device is made of galvanized steel sheet. Galvanized steel sheet has high structural strength and is not prone to rust.

[0049] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A connection device between a cable tray and a distribution box, characterized in that, include: The connecting pipe (100) is used to be installed in conjunction with the opening on the top of the distribution box (110). The lower opening of the connecting pipe (100) is provided with an outwardly extending reverse edge (120). The reverse edge (120) is located inside the distribution box (110) and is connected to the top surface of the distribution box (110) by a first bolt (130). The side of the connecting pipe (100) is connected to the cable tray (140) by a second bolt (150). The cable fixing assembly includes a flat steel (160) disposed in the connecting tube (100) for clamping the cable, a first screw (170) and a second screw (180) for fixing the flat steel (160) to the inner wall of the connecting tube (100). A grounding wire (190) is provided outside the connecting pipe (100) and connects the first bolt (130) and the second bolt (150). An insulating plate (200) is provided in the lower opening of the connecting pipe (100), and the insulating plate (200) is provided with a through hole (290) for accommodating the cable.

2. The connection device between the cable tray and the distribution box according to claim 1, characterized in that, The connecting tube (100) is a square tube, and the reverse side (120) has 4 pieces, which are respectively arranged on the 4 sides of the lower opening.

3. The connection device between the cable tray and the distribution box according to claim 2, characterized in that, The cable fixing assembly is disposed on the inner wall of one side of the connecting pipe (100), and the connecting pipe (100) has a side opening (210) on the inner wall of the side opposite to the cable fixing assembly.

4. The connection device between the cable tray and the distribution box according to claim 2, characterized in that: The reverse sides (120) on the left and right sides of the lower opening are provided with first mounting holes (220), which are used to install the first bolt (130).

5. The connection device between the cable tray and the distribution box according to claim 1, characterized in that, The connecting pipe (100) is provided with two second mounting holes (230) on the left and right sides respectively. The second mounting holes (230) are used to install the second bolt (150).

6. The connection device between the cable tray and the distribution box according to claim 1, characterized in that, The lower opening is provided with a side groove (240), which is used to install and accommodate the insulating plate (200).

7. The connection device between the cable tray and the distribution box according to claim 1, characterized in that, The insulating plate (200) has a third mounting hole (250) near the front side, and the third mounting hole (250) is connected to the distribution box (110) by a third bolt (260).

8. The connection device between the cable tray and the distribution box according to claim 1, characterized in that, The flat steel (160) is provided with mounting through holes (270) on both the left and right sides, which cooperate with the first screw (170) and the second screw (180).

9. The connection device between the cable tray and the distribution box according to claim 8, characterized in that, The top of the first screw (170) and the second screw (180) are provided with a wing nut (280).

10. The connection device between the cable tray and the distribution box according to claim 1, characterized in that, The connecting device is made of galvanized steel plate.

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