Splicing type elbow structure of cable bridge

Abstract

The utility model provides a cable bridge splicing type elbow structure. The cable bridge splicing type elbow structure comprises a first bridge, a second bridge, an elbow interface and an elbow plug, a butt joint port is formed in one side of the first bridge frame end part, an opening is formed in the end face of the first bridge frame, the first bridge frame comprises a first side plate and a second side plate which are arranged side by side, and a butt joint port is formed in the tail end of the first side plate; the elbow connector is arranged at the butt joint port, and one side of the first end of the elbow connector is connected with the first side plate; the elbow plug is arranged at the end part of the first bridge frame; and the second bridge is connected with the second end of the elbow interface. When the cable bridge is assembled, the elbow interface and the elbow plug can be prepared in advance, and the first bridge and the second bridge can be quickly connected, so that the cable bridge can be quickly assembled, the problems of complicated operation, low installation efficiency, heavy installation burden and the like caused by field cutting and welding are solved, and bulges and burrs generated by field cutting and welding are also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cable trays, in particular to a splicing type elbow structure for cable trays. Background Art

[0002] As a common support and protection device for cable laying in the power supply system of electrical equipment, a cable tray plays a role in protecting the cables laid in the cable tray and guiding the cable routing. A cable tray consists of a straight section of a tray or ladder, its elbows, accessories, and supports, forming a continuous rigid structure system for supporting the cable line. A ladder-type cable tray is a rigid trapezoidal component composed of side edges and several cross bars. When constructing a cable tray, according to the requirements of the length or direction change of the laid cable, the cable tray needs to be connected in various ways such as straight-through, three-way, and four-way.

[0003] There are many problems or defects in the existing cable trays when making a turning connection. When making an elbow connection, it is often necessary to cut finished parts multiple times to fabricate fittings on-site to meet the actual construction requirements. The traditional manual manufacturing method for elbows includes determining the cable tray size, drawing marking lines, starting cutting, first cutting the edge of the cable tray, then deburring and polishing, and finally welding on-site. The existing elbow connection method has a cumbersome overall operation, low installation efficiency, increases the burden on installers, and results in low construction efficiency. Moreover, it will produce protrusions and burrs, which will damage the cables when dragging the cables. Summary of the Utility Model

[0004] In order to solve the technical problems of cumbersome operation and low construction efficiency in the elbow connection of existing cable trays, one of the purposes of the utility model is to provide a splicing type elbow structure for cable trays.

[0005] One of the purposes of the utility model is achieved by adopting the following technical solutions:

[0006] A splicing type elbow structure for cable trays, the splicing type elbow structure for cable trays includes a first cable tray, a second cable tray, an elbow interface, and an elbow plug;

[0007] One side of the end of the first cable tray is provided with a docking port, the end face of the first cable tray is provided with an opening, the first cable tray includes a first side plate and a second side plate arranged side by side, and the docking port is provided at the end of the first side plate;

[0008] The elbow interface is arranged at the docking port, and one side of the first end of the elbow interface is connected to the first side plate;

[0009] The elbow plug is arranged at the end of the first cable tray for blocking the opening between the second side plate and the elbow interface;

[0010] The second cable tray is connected to the second end of the elbow interface.

[0011] Optionally, the elbow joint includes a third side plate, a fourth side plate and an elbow bottom plate, and the third side plate and the fourth side plate are arranged side by side on the elbow bottom plate;

[0012] The first end of the third side plate is connected to the first side plate, and the first end of the third side plate is arc-shaped;

[0013] The fourth side plate extends to the end face of the first cable tray and is connected to the elbow plug.

[0014] Optionally, a first connection hole is provided at the position of the first side plate close to the docking port;

[0015] A second connection hole is provided at the first end of the third side plate;

[0016] The spliced elbow structure of the cable tray further includes a first fastener, and the first fastener passes through the first connection hole and the second connection hole to fasten the first end of the third side plate and the first side plate.

[0017] Optionally, a first connection section is provided at the first end of the third side plate, a bending step is provided at the starting point of the first connection section, and the first connection section is located outside the first side plate.

[0018] Optionally, a third connection hole is provided at the second end of the third side plate;

[0019] A fourth connection hole is provided at the second end of the fourth side plate;

[0020] At least two fifth connection holes are provided on the second cable tray, one of the fifth connection holes is correspondingly arranged with the third connection hole, and the other fifth connection hole is correspondingly arranged with the fourth connection hole;

[0021] The spliced elbow structure of the cable tray further includes a second fastener, and part of the second fasteners pass through the third connection hole and the fifth connection hole to fasten the second end of the third side plate and the second cable tray, and part of the second fasteners pass through the fourth connection hole and the fifth connection hole to fasten the second end of the fourth side plate and the second cable tray.

[0022] Optionally, a plurality of the third connection holes are provided at the second end of the third side plate, and each of the third connection holes is distributed along the length direction of the second cable tray;

[0023] A plurality of the fourth connection holes are provided at the second end of the fourth side plate, and each of the fourth connection holes is distributed along the length direction of the second cable tray.

[0024] Optionally, both ends of the elbow bottom plate are respectively connected to the bottom of the first cable tray and the bottom of the second cable tray;

[0025] The first end of the elbow bottom plate is provided with a second connection section, the starting point of the second connection section has a bending step, and the second connection section is located at the bottom of the first cable tray.

[0026] Optionally, the elbow plug includes a sealing plate and a connecting folding plate, and the connecting folding plate is arranged at the first end of the sealing plate;

[0027] The sealing plate is arranged at the opening of the end face of the first cable tray, the connecting folding plate is bent towards the second side plate and connected to the second side plate, and the second end of the sealing plate is connected to the fourth side plate.

[0028] Optionally, the first cable tray further includes a first bottom plate, the first side plate and the second side plate are arranged side by side on both sides of the first bottom plate, and the upper parts of the first side plate and the second side plate are both provided with inwardly bent flanges.

[0029] Optionally, the second cable tray includes a second bottom plate and two fifth side plates, the two fifth side plates are arranged side by side on both sides of the second bottom plate, and the upper part of the fifth side plate is provided with an inwardly bent flange.

[0030] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0031] A turning connection is made at the end of the first cable tray. An interface is provided on one side of the end of the first cable tray, and in addition, the end face of the first cable tray has an opening. The elbow interface is arranged at the interface for docking with the interface, and the elbow plug is arranged at the opening of the end face for docking with the opening, and the second end of the elbow interface can also be connected to the second cable tray. In this way, when assembling the cable tray, the elbow interface and the elbow plug can be prefabricated or prepared in advance to quickly connect the first cable tray and the second cable tray, realizing the rapid assembly of the cable tray, avoiding the problems of cumbersome operation, low installation efficiency, and heavy installation burden caused by on-site cutting and welding, and also avoiding the protrusions and burrs generated by on-site cutting and welding. Description of the Drawings

[0032] Figure 1 It is a schematic structural diagram of the spliced elbow structure of the cable tray of the present utility model;

[0033] Figure 2 It is a schematic structural diagram of another perspective of the spliced elbow structure of the cable tray of the present utility model;

[0034] Figure 3 It is an exploded schematic diagram of the spliced elbow structure of the cable tray of the present utility model;

[0035] Figure 4 This is a schematic structural diagram of the elbow interface in the spliced elbow structure of the cable tray of the present utility model.

[0036] Explanation of the attached drawing reference numerals:

[0037] 1. First cable tray; 11. First side plate; 111. Opposing interface; 12. Second side plate; 13. First bottom plate;

[0038] 2. Second cable tray; 21. Second bottom plate; 22. Fifth side plate; 221. Fifth connection hole;

[0039] 3. Elbow interface; 31. Third side plate; 311. First connection section; 312. Third connection hole; 32. Fourth side plate; 321. Fourth connection hole; 33. Elbow bottom plate; 331. Second connection section;

[0040] 4. Elbow plug; 41. Sealing plate; 42. Connecting folding plate. Detailed implementation manners

[0041] Next, in combination with the attached drawings in the embodiments of the present application Figure 1 to the attached drawings Figure 4 the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a 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 of ordinary skill in the art without making creative efforts belong to the scope protected by the present application.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0043] In addition, the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0044] Such as Figure 1 、 Figure 2 and Figure 3As shown in the figure, the utility model provides a spliced elbow structure for a cable tray for quickly connecting cable trays. The spliced elbow structure of the cable tray includes a first cable tray 1, a second cable tray 2, an elbow interface 3, and an elbow plug 4. One side of the end of the first cable tray 1 is provided with a mating interface 111. The end face of the first cable tray 1 is provided with an opening. The first cable tray 1 includes a first side plate 11 and a second side plate 12 arranged side by side. The end of the first side plate 11 is provided with the mating interface 111. The elbow interface 3 is arranged at the mating interface 111. One side of the first end of the elbow interface 3 is connected to the first side plate 11. The elbow plug 4 is arranged at the end of the first cable tray 1 for blocking the opening between the second side plate 12 and the elbow interface 3. The second cable tray 2 is connected to the second end of the elbow interface 3. In the utility model, a turning connection is performed at the end of the first cable tray 1. A mating interface 111 is arranged on one side of the end of the first cable tray 1, and in addition, the end face of the first cable tray 1 has an opening. The elbow interface 3 is arranged at the mating interface 111 for mating with the mating interface 111. The elbow plug 4 is arranged at the opening of the end face for mating with the opening, and the second end of the elbow interface 3 can also be connected to the second cable tray 2. In this way, when assembling the cable tray, the elbow interface 3 and the elbow plug 4 can be prefabricated or prepared in advance to quickly connect the first cable tray 1 and the second cable tray 2, realizing the rapid assembly of the cable tray, avoiding the problems of cumbersome operation, low installation efficiency, and heavy installation burden caused by on-site cutting and welding, and also avoiding the protrusions and burrs generated by on-site cutting and welding.

[0045] The installation layout of cable trays inevitably requires turning. Since the production of arc shapes is relatively troublesome and the labor cost is high, the elbows of cable trays in the traditional market are all right-angled when turning involves angular connection, with non-arc-shaped sides and non-circular arc elbows. The horizontal elbow of the ladder-type cable tray is a type of cable tray. If the turning is at a right angle, when pulling the cable, it will be bent at 90 degrees, which is very likely to cause the wires inside the cable to break. Moreover, the pulling of the cable will cause the edges and corners of the right-angle surface to be frequently rubbed, and the surface layer of the cable is easily scratched during the installation and construction, accelerating the wear and aging of the cable and reducing the service life of the cable. To solve these problems, the utility model provides an embodiment of the elbow interface 3. Refer to the attached Figure 4, the elbow joint 3 includes a third side plate 31, a fourth side plate 32 and an elbow bottom plate 33. The third side plate 31 and the fourth side plate 32 are arranged side by side on the elbow bottom plate 33. The first end of the third side plate 31 is connected to the first side plate 11, and the first end of the third side plate 31 is arc-shaped. The fourth side plate 32 extends to the end face of the first bridge 1, and the fourth side plate 32 is connected to the elbow plug 4. In this embodiment, the first end of the third side plate 31 is arc-shaped. In this way, when the elbow joint 3 is docked with the first bridge 1, an arc-shaped connection structure can be formed by using the third side plate 31. The inner side of the elbow joint 3 near the turn is arc-shaped. In this way, the inner right-angle side of the elbow joint 3 is converted into an arc section, reducing the resistance when dragging the cable. Compared with ordinary elbows, the elbow joint 3 in this embodiment can reduce cable wear and make the dragging of the wire smoother.

[0046] Further, referring to the attached Figure 3 and the attached Figure 4 , a first connection hole is provided at the first side plate 11 near the docking port 111. A second connection hole is provided at the first end of the third side plate 31. The cable tray splicing elbow structure further includes a first fastener. The first fastener passes through the first connection hole and the second connection hole to fasten the first end of the third side plate 31 and the first side plate 11. The first side plate 11 and the third side plate 31 are respectively provided with a first connection hole and a second connection. The first bridge 1 and the elbow joint 3 can be quickly installed through the first fastener, rapidly improving the assembly efficiency.

[0047] Even further, referring to the attached Figure 3 and the attached Figure 4 , a first connection section 311 is provided at the first end of the third side plate 31. A bending step is provided at the starting point of the first connection section 311. The first connection section 311 is located outside the first side plate 11.

[0048] At the first end of the third side plate 31, after being bent by the bending step, when the first end of the third side plate 31 is flush with the first side plate 11, the first connection section 311 can extend to the outside of the first side plate 11, thus closely adhering to the first side plate 11. In this way, the third side plate 31 and the first side plate 11 are connected in a close-fitting manner, making the assembly more compact, the sealing performance better, isolating external water vapor, providing a better working environment for the internal cables, and extending the service life.

[0049] In some embodiments of the third side plate 31, referring to the attached Figure 3 and the attached Figure 4, a second end of the third side plate 31 is provided with a third connection hole 312. A second end of the fourth side plate 32 is provided with a fourth connection hole 321. At least two fifth connection holes 221 are provided on the second bridge 2, one of the fifth connection holes 221 is correspondingly arranged with the third connection hole 312, and the other fifth connection hole 221 is correspondingly arranged with the fourth connection hole 321. The spliced elbow structure of the cable tray further includes a second fastener, and part of the second fasteners are inserted through the third connection hole 312 and the fifth connection hole 221 to fasten the second end of the third side plate 31 and the second bridge 2. Part of the second fasteners are inserted through the fourth connection hole 321 and the fifth connection hole 221 to fasten the second end of the fourth side plate 32 and the second bridge 2. In this embodiment, the third side plate 31, the fourth side plate 32 and the second bridge 2 are respectively provided with the third connection hole 312, the fourth connection hole 321 and the fifth connection hole 221. In this way, the elbow interface 3 and the second bridge 2 can be quickly and firmly assembled by using the second fastener, improving the assembly efficiency.

[0050] Further, referring to the attached Figure 4 , a second end of the third side plate 31 is provided with a plurality of third connection holes 312, and the third connection holes 312 are distributed along the length direction of the second bridge 2. A second end of the fourth side plate 32 is provided with a plurality of fourth connection holes 321, and the fourth connection holes 321 are distributed along the length direction of the second bridge 2. By respectively arranging a plurality of third connection holes 312 and a plurality of fourth connection holes 321 at the second end of the third side plate 31 and the second end of the fourth side plate 32, when the second bridge 2 is docked with the elbow interface 3, the position of the second bridge 2 can be adjusted by moving the position of the second bridge 2, so as to finally adjust the position of the second bridge 2 by aligning with the third connection hole 312 and the fourth connection hole 321.

[0051] In some embodiments of the elbow bottom plate 33, referring to the attached Figure 3 , attached Figure 4 , two ends of the elbow bottom plate 33 are respectively connected to the bottom of the first bridge 1 and the bottom of the second bridge 2. A second connection section 331 is provided at a first end of the elbow bottom plate 33, and a bending step is provided at the starting point of the second connection section 331. The second connection section 331 is located at the bottom of the first bridge 1. At the first end of the elbow bottom plate 33, after being bent by the bending step, when the first end of the elbow bottom plate 33 is flush with the bottom of the first bridge 1, that is, the first end of the elbow bottom plate 33 is flush with the first bottom plate 13, the second connection section 331 can extend to the bottom of the first bridge 1, that is, extend to the bottom of the first bottom plate 13, so as to closely adhere to the bottom of the first bridge 1 or the bottom of the first bottom plate 13. In this way, the elbow bottom plate 33 is tightly connected to the first bridge 1, making the assembly more compact, the sealing performance better, isolating external water vapor, and the internal cables having a higher working environment, prolonging the service life.

[0052] In addition, bending steps are provided at one ends of the third side plate 31 and the bending bottom plate 33 of the elbow joint 3 close to the first bridge 1, so that a first connection section 311 is provided on the third side plate 31 and a second connection section 331 is provided on the bending bottom plate 33. The elbow joint 3 can be closely connected to the first bridge 1 by using the third side plate 31 and the bending bottom plate 33, and is fixed by both the bottom and the side plates, forming an elbow with better load-bearing capacity and stability, better sealing performance, high safety, and long service life.

[0053] In some embodiments of the elbow plug 4, refer to the attached Figure 3 and the attached Figure 4 The elbow plug 4 includes a sealing plate 41 and a connecting folding plate 42. The connecting folding plate 42 is provided at the first end of the sealing plate 41. The sealing plate 41 is provided at the opening of the end face of the first bridge 1. The connecting folding plate 42 bends towards the second side plate 12 and is connected to the second side plate 12. The second end of the sealing plate 41 is connected to the fourth side plate 32. The sealing plate 41 seals the opening. At the same time, the second end of the sealing plate 41 is connected to the elbow joint 3, that is, connected to the fourth side plate 32. In addition, the sealing plate 41 is connected to the second side plate 12 through the connecting folding plate 42, thereby realizing the sealing of the opening.

[0054] For the aforementioned first bridge 1, specifically, the first bridge 1 further includes a first bottom plate 13. The first side plate 11 and the second side plate 12 are arranged side by side on both sides of the first bottom plate 13. Folded edges bent inward are provided on the upper parts of the first side plate 11 and the second side plate 12.

[0055] For the aforementioned second bridge 2, specifically, refer to the attached Figure 3 and the attached Figure 4 The second bridge 2 includes a second bottom plate 21 and two fifth side plates 22. The two fifth side plates 22 are arranged side by side on both sides of the second bottom plate 21. Folded edges bent inward are provided on the upper parts of the fifth side plates 22. Folded edges bent inward are provided on the upper parts of the third side plate 31 and the fourth side plate 32. The aforementioned fifth connection hole 221 is provided on the fifth side plate 22.

[0056] In addition, a folded edge is also provided on the upper part of the sealing plate 41.

[0057] The foregoing hem is convenient for connection with the corresponding cover plate. For example, in some embodiments of the splicing elbow structure of a cable tray, the splicing elbow structure of the cable tray further includes an elbow cover plate, a first cover plate, and a second cover plate. The elbow cover plate, the first cover plate, and the second cover plate are respectively buckled on the elbow interface 3, the first cable tray 1, and the second cable tray 2. Elastic folding plates are provided at the bottoms of the elbow cover plate, the first cover plate, and the second cover plate. The elastic folding plates have protrusions facing outward. When the cover plates are assembled, the elastic folding plates at the bottoms of the elbow cover plate, the first cover plate, and the second cover plate are located inside the hem, and the elastic folding plates at the bottoms of the elbow cover plate, the first cover plate, and the second cover plate are abutted against the corresponding hems. In this way, the elbow cover plate, the first cover plate, and the second cover plate can be elastically clamped and assembled through the elastic folding plates.

[0058] The above embodiments are only the preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantive changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.

Claims

1. A splicing elbow structure for cable tray, characterized in that, The spliced elbow structure of the cable tray includes a first tray, a second tray, an elbow interface and an elbow plug; One side of the end of the first tray is provided with a docking port. The end face of the first tray is provided with an opening. The first tray includes a first side plate and a second side plate arranged side by side, and the docking port is provided at the end of the first side plate; The elbow interface is arranged at the docking port, and one side of the first end of the elbow interface is connected to the first side plate; The elbow plug is arranged at the end of the first tray for blocking the opening between the second side plate and the elbow interface; The second tray is connected to the second end of the elbow interface.

2. The spliced elbow structure of the cable tray according to claim 1, characterized in that, The elbow interface includes a third side plate, a fourth side plate and an elbow bottom plate, and the third side plate and the fourth side plate are arranged side by side on the elbow bottom plate; The first end of the third side plate is connected to the first side plate, and the first end of the third side plate is arc-shaped; The fourth side plate extends to the end face of the first tray, and the fourth side plate is connected to the elbow plug.

3. The splicing elbow structure of the cable tray according to claim 2, characterized in that, A first connection hole is provided at the first side plate near the docking port; A second connection hole is provided at the first end of the third side plate; The spliced elbow structure of the cable tray further includes a first fastener, and the first fastener passes through the first connection hole and the second connection hole to fasten the first end of the third side plate and the first side plate.

4. The cable tray splicing elbow structure according to claim 3, wherein, A first connection section is provided at the first end of the third side plate, and a bending step is provided at the starting point of the first connection section. The first connection section is located outside the first side plate.

5. The splicing elbow structure of the cable tray according to claim 2, wherein, A third connection hole is provided at the second end of the third side plate; A fourth connection hole is provided at the second end of the fourth side plate; At least two fifth connection holes are provided on the second tray, one of the fifth connection holes is correspondingly arranged with the third connection hole, and the other fifth connection hole is correspondingly arranged with the fourth connection hole; The spliced elbow structure of the cable tray further includes a second fastener. Some of the second fasteners pass through the third connection hole and the fifth connection hole to fasten the second end of the third side plate and the second tray, and some of the second fasteners pass through the fourth connection hole and the fifth connection hole to fasten the second end of the fourth side plate and the second tray.

6. The spliced elbow structure of the cable tray according to claim 5, characterized in that, A plurality of the third connection holes are provided at the second end of the third side plate, and each of the third connection holes is distributed along the length direction of the second tray; A plurality of the fourth connection holes are provided at the second end of the fourth side plate, and each of the fourth connection holes is distributed along the length direction of the second tray.

7. The splicing elbow structure of the cable tray according to claim 2, wherein, Both ends of the elbow bottom plate are respectively connected to the bottom of the first tray and the bottom of the second tray; A second connection section is provided at the first end of the elbow bottom plate, and a bending step is provided at the starting point of the second connection section. The second connection section is located at the bottom of the first tray.

8. The splicing elbow structure of the cable tray according to claim 2, characterized in that, The elbow plug includes a blocking plate and a connecting folding plate, and the connecting folding plate is arranged at the first end of the blocking plate; The blocking plate is arranged at the opening of the end face of the first tray. The connecting folding plate bends towards the second side plate and is connected to the second side plate. The second end of the blocking plate is connected to the fourth side plate.

9. The splicing elbow structure of the cable tray according to claim 1, characterized in that, The first bridge also includes a first bottom plate, the first side plate and the second side plate are arranged side by side on both sides of the first bottom plate, and the upper parts of the first side plate and the second side plate are both provided with flanges bent inward.

10. The splicing elbow structure of the cable tray according to claim 1, characterized in that, The second bridge includes a second bottom plate and two fifth side plates, the two fifth side plates are arranged side by side on both sides of the second bottom plate, and the upper part of the fifth side plate is provided with a flange bent inward.

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