Step type cable bridge

Abstract

The utility model relates to a step type cable bridge which comprises side plates, step beams and limiting screws. The number of the side plates is two, and the bottom end of each side plate is provided with a first folding edge. The first folding edge is provided with a first connecting hole. Limiting plates horizontally extending inwards are further arranged on the inner sides of the side plates. The limiting plate is provided with a second connecting hole. The two sides of the ladder beam are bent to form second folded edges. Two ends of the ladder beam are respectively butted with the limiting plates. The bottom face of the limiting plate abuts against the top of the second folded edge, and the top of the first folded edge abuts against the bottom of the second folded edge. The ladder beams are further provided with through holes. And each end part of the ladder beam is at least connected with one limiting screw. Under the condition that welding is not needed, stable connection between the side plates and the ladder beams is achieved, damage to an anti-rust protection layer caused by a welding mode is avoided, meanwhile, transportation can be carried out in a part mode in the product transportation process, assembling is carried out on a construction site, and the transportation difficulty and cost are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable bridge design technical field, especially a kind of ladder type cable bridge. BACKGROUND

[0002] Ladder type cable bridge is a structural member for carrying cable, which mainly comprises: two mutually parallel side plates and ladder beam bridging between the two side plates, the cable receiving space in the shape of U is formed by the side plate and the ladder beam, it is suitable for the situation that cable needs to span a large distance and carry heavy weight, for example, in industrial plant, spacious workshop, railway, highway, bridge and tunnel and other places.

[0003] The drawbacks of traditional ladder type cable bridge are: the two ends of ladder beam are fixed on the inner side of side plate by welding, which will damage the rust-proof layer (such as galvanized layer) at the connection between ladder beam and side plate during welding, weakening the rust-proof ability. Moreover, the welding process often needs to be completed in the factory, and the volume of ladder type cable bridge after welding is large, which is difficult to transport and has high transportation cost. SUMMARY

[0004] Therefore, the utility model provides a ladder type cable bridge, which realizes the plug-in connection and locking between the side plate and the ladder beam by using the first folding edge, the limiting plate, the second folding edge and the limiting screw, realizes the stable connection between the side plate and the ladder beam without welding, avoids the damage of the rust-proof layer caused by welding, and can be transported in the form of parts during product transportation, assembled at the construction site, reduces the transportation difficulty and cost.

[0005] A ladder type cable bridge comprises:

[0006] The side plate is provided with a first folding edge which is bent inwardly from bottom to top to form an L shape at the bottom end of each side plate, and the first folding edge is provided with a first connecting hole; the inner side of the side plate is further provided with a limiting plate which extends horizontally inward, and the limiting plate is arranged parallel to the upper side of the first folding edge; the limiting plate is provided with a second connecting hole;

[0007] The ladder beam is bridged between the two side plates, and the two sides of the ladder beam are bent inwardly from bottom to top to form a second folding edge which is an L shape; the two ends of the ladder beam are respectively connected to the limiting plate; the bottom surface of the limiting plate is in abutment with the top of the second folding edge, and the top of the first folding edge is in abutment with the bottom of the second folding edge; the ladder beam is further provided with a through hole, and the first connecting hole, the through hole and the second connecting hole are coaxially arranged along the direction parallel to the side plate; and

[0008] The limiting screw is connected to the ladder beam, and at least one limiting screw is connected to each end of the ladder beam. The limiting screw is sequentially inserted into the first connecting hole, the through hole, and the second connecting hole to lock the end of the ladder beam between the first folded edge and the limiting plate.

[0009] In the above-mentioned ladder-type cable bridge, when assembling, the ladder beam is placed between the two side plates. Then, the end of the ladder beam is moved to the limiting plate of the side plate, and the ladder beam or the side plate is moved so that the limiting plate is inserted into the end of the ladder beam, at this time, the second folded edge of the ladder beam is just clamped between the limiting plate and the first folded edge. Finally, the limiting screw is inserted from bottom to top into the side plate and the ladder beam, thereby locking the end of the ladder beam on the side plate. Through the above design, the first folded edge, the limiting plate, the second folded edge, and the limiting screw are used to realize the plug-in connection and locking between the side plate and the ladder beam, thereby realizing the stable connection between the side plate and the ladder beam without welding, avoiding the damage of the rust-proof protective layer caused by the welding method, and at the same time, the product can be transported in the form of parts during transportation, and assembled at the construction site, thereby reducing the transportation difficulty and cost.

[0010] In one of the embodiments, the ladder-type cable bridge further comprises a layered plate connected to the ladder beam; the bottom of the layered plate is provided with a plug-in column extending towards the ladder beam; the plug-in column comprises a supporting section and an insertion section; the bottom of the supporting section abuts against the top surface of the ladder beam; the insertion section is inserted into the ladder beam; and the top surface of the ladder beam is provided with a first positioning hole for the insertion of the insertion section. When multiple cables need to be classified and routed, the external layered plate can be plugged into the ladder beam, thereby realizing the layering of the storage space and achieving the purpose of layered routing.

[0011] In one of the embodiments, the two ends of the layered plate are respectively provided with third folded edges extending downwards. The third folded edges are used to realize the lateral boundary limitation of each layer of cables, thereby avoiding the cables of the layer from being pulled out from the outside.

[0012] In one of the embodiments, the number of layered plates is multiple and the layered plates are sequentially stacked together along the height direction of the side plate; and the top surface of each layered plate is provided with a second positioning hole matched with the insertion section. The layered plates can be sequentially stacked together, thereby realizing the multi-layer separation.

[0013] In one of the embodiments, the ladder-type cable bridge further comprises a cover plate connected between the two side plates; and the cover plate is located at the top end of the side plate and is parallel to the ladder beam. The cover plate is used to cover the top of the cables, thereby avoiding the liquid or sundries from falling on the cables.

[0014] In one of the embodiments, the top end of the side plate is provided with a fourth folded edge extending towards the inside and having an L-shaped cross section; and the two sides of the cover plate are provided with fifth folded edges covering the outside of the fourth folded edge. The fourth folded edge and the fifth folded edge are used to seal the connection between the side plate and the cover plate, thereby reducing the risk of liquid or sundries intrusion. Attached Figure Description

[0015] Figure 1 This is a perspective view of a ladder-type cable tray according to Embodiment 1 of this utility model;

[0016] Figure 2 for Figure 1 A three-dimensional view of the ladder-type cable tray shown from another perspective;

[0017] Figure 3 for Figure 1 An exploded view of a ladder-type cable tray is shown.

[0018] Figure 4 for Figure 1 A cross-sectional view of the ladder-type cable tray shown;

[0019] Figure 5 for Figure 4 An enlarged view of part A in the ladder-type cable tray shown;

[0020] Figure 6 for Figure 4 A perspective view of the side panel in the ladder-type cable tray shown;

[0021] Figure 7 for Figure 6 A perspective view of the side panel shown from another angle;

[0022] Figure 8 for Figure 4 A perspective view of the ladder beams in the ladder-type cable tray shown;

[0023] Figure 9 for Figure 8 A three-dimensional view of the ladder beam from another perspective;

[0024] Figure 10 This is a perspective view of the ladder-type cable tray according to Embodiment 2 of this utility model;

[0025] Figure 11 for Figure 10 A perspective view of the layered panels in the ladder-type cable tray shown;

[0026] Figure 12 This is a perspective view of the ladder-type cable tray of Embodiment 3 of this utility model.

[0027] The meanings of the labels in the attached diagram are as follows:

[0028] 100-ladder type cable tray;

[0029] 10-Side panel, 11-First folded edge, 111-First connecting hole, 12-Limiting plate, 121-Second connecting hole, 13-Fourth folded edge;

[0030] 20 - ladder, 21 - second hem, 22 - through hole, 23 - first positioning hole;

[0031] 30 - limit screw;

[0032] 40 - layered board, 41 - third hem, 42 - second positioning hole;

[0033] 50 - cover plate, 51 - fifth hem. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways other than those described herein, and skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship 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.

[0036] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0039] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0040] Embodiment one

[0041] As shown in Figures 1 to 9 , it is a ladder type cable bridge 100 of an embodiment of the present application.

[0042] As shown in Figure 1 and Figure 2 , the ladder type cable bridge 100 comprises a side plate 10, a ladder beam 20 bridged between two side plates 10, and a limiting screw 30 connected on the ladder beam 20. The side plate 10 and the ladder beam 20 jointly constitute a U-shaped bridge structure to accommodate the cable. The limiting screw 30 is used to realize the detachable connection of the side plate 10 and the ladder beam 20. In the present embodiment, the side plate 10 and the ladder beam 20 can be galvanized sheet structure, and in other embodiments, the side plate 10 and the ladder beam 20 can be stainless steel sheet structure, glass steel sheet structure or aluminum sheet structure.

[0043] In the following, combined with Figures 1 to 9Further description is made to the stepped cable tray 100.

[0044] As shown in Figure 1 , the number of side plates 10 is two and they are arranged in mirror image. Figure 6 and Figure 7 , the bottom end of each side plate 10 is provided with a first folded edge 11 which is bent inwardly from bottom to top to form an L shape. The first folded edge 11 is provided with a first connecting hole 111. The inner side of the side plate 10 is further provided with a limiting plate 12 which extends horizontally inwardly and is arranged in parallel above the first folded edge 11. The limiting plate 12 is provided with a second connecting hole 121.

[0045] In addition, as shown in Figure 6 , in the present embodiment, the side plate 10 is processed by punching and cutting to form the limiting plate 12, and a window adjacent to the limiting plate 12 is formed on the side plate 10.

[0046] As shown in Figure 9 and Figure 10 , the two sides of the ladder beam 20 are bent inwardly from bottom to top to form a second folded edge 21 which is in an L shape. The two ends of the ladder beam 20 are respectively abutted against the limiting plate 12. The bottom surface of the limiting plate 12 is in abutment with the top of the second folded edge 21, and the top of the first folded edge 11 is in abutment with the bottom of the second folded edge 21. The ladder beam 20 is further provided with a through hole 22, and the first connecting hole 111, the through hole 22, and the second connecting hole 121 are coaxially arranged in a direction parallel to the side plate 10.

[0047] In combination with Figure 2 and Figure 3 , at least one limiting screw 30 is connected to each end of the ladder beam 20, for example, in the present embodiment, one limiting screw 30 is connected to each end of the ladder beam 20, and in other embodiments, two limiting screws 30 can be connected, and the number of limiting screws 30 can be adaptively increased according to the requirement of structural stability. The limiting screw 30 is sequentially inserted into the first connecting hole 111, the through hole 22, and the second connecting hole 121 to lock the end of the ladder beam 20 between the first folded edge 11 and the limiting plate 12. Further, in order to reduce the number of parts during installation, preferably, in the present embodiment, the second connecting hole 121 is a threaded hole, while the first connecting hole 111 and the through hole 22 can be threaded holes or non-threaded holes. In other embodiments, the first connecting hole 111, the through hole 22, and the second connecting hole 121 can all be non-threaded holes, in which case, a nut adapted to the limiting screw 30 needs to be added.

[0048] Working principle:

[0049] As shown in Figure 4 and Figure 5 ,As shown, when assembled, the ladder beam 20 is placed between the two side plates 10. Then, the end of the ladder beam 20 is moved towards the limiting plate 12 of the side plate 10, so that the limiting plate 12 is inserted into the end of the ladder beam 20 (as shown in Figure 9 As shown, the top of the second folded edge 21 and the bottom surface of the main body of the ladder beam 20 are provided with spaces for the insertion of the limiting plate 12. Figure 5 As shown, when the limiting plate 12 is inserted into the end of the ladder beam 20, the bottom surface of the limiting plate 12 is clamped between the top of the second folded edge 21 and the bottom surface of the main body of the ladder beam 20, at this time, the second folded edge 21 of the ladder beam 20 is just clamped between the limiting plate 12 and the first folded edge 11 (the relationship between the limiting plate 12 and the ladder beam 20 is similar to the plug-in relationship). Finally, the limiting screw 30 is inserted from bottom to top into the side plate 10 and the ladder beam 20, thereby locking the end of the ladder beam 20 on the side plate 10.

[0050] The stepped cable bridge 100 described above realizes the plug-in connection and locking between the side plate 10 and the ladder beam 20 by using the first folded edge 11, the limiting plate 12, the second folded edge 21, and the limiting screw 30, realizes the stable connection between the side plate 10 and the ladder beam 20 without welding, avoids the damage of the rust-proof protective layer caused by the welding method, and at the same time, the product can be transported in the form of parts during the product transportation process, and the product can be assembled at the construction site, thereby reducing the transportation difficulty and cost.

[0051] Embodiment Two

[0052] As shown in Figure 10 and Figure 11 , it is another embodiment of the stepped cable bridge 100 of the utility model.

[0053] The difference between this embodiment and embodiment one is that, as shown in Figure 1 , in this embodiment, the stepped cable bridge 100 further comprises a layered plate 40 connected to the ladder beam 20.

[0054] As shown in Figure 11 , the bottom of the layered plate 40 is provided with a plug-in column 43 extending towards the ladder beam 20. The plug-in column 43 comprises a supporting section 431 and an insertion section 432. As shown in Figure 10 , the bottom of the supporting section 431 abuts against the top surface of the ladder beam 20, and the insertion section 432 is inserted into the ladder beam 20, and correspondingly, the top surface of the ladder beam 20 is provided with a first positioning hole 23 for the insertion of the insertion section (for reference, see Figure 3 ). When multiple cables need to be classified and routed, the external layered plate 40 can be plugged into the ladder beam 20, so as to realize the layering of the storage space and achieve the purpose of layered routing.

[0055] Further, as shown in Figure 11As shown, the two ends of the layered plate 40 are respectively provided with downwardly extending third folded edges 41. Figure 10 As shown, the third fold 41 is used to define the lateral boundary of the cables in each layer, preventing the cables in that layer from coming off the outside when the cables are pulled.

[0056] In order for the ladder-type cable tray 100 to simultaneously accommodate multiple types of cables and to arrange them in a neat and orderly manner, such as Figure 10 As shown, there are multiple layered panels 40, which are stacked together sequentially along the height direction of the side panels 10. Figure 11 As shown, each layer plate 40 has a second positioning hole 42 on its top surface that matches the insertion section. The layer plates 40 can be stacked together to achieve multi-layer separation.

[0057] The other structures in this embodiment are the same as in Embodiment 1, and it can also achieve the beneficial effects of Embodiment 1.

[0058] Example 3

[0059] like Figure 12 As shown, this is another embodiment of the ladder-type cable tray 100 of the present invention.

[0060] The difference between this embodiment and Embodiment 1 is that: Figure 12 As shown, in this embodiment, the ladder-type cable tray 100 further includes a cover plate 50 connected between the two side plates 10. The cover plate 50 is located at the top of the side plates 10 and parallel to the ladder beam 20. The cover plate 50 is used to cover the cables to prevent liquids or debris from falling onto the cables.

[0061] Furthermore, such as Figure 12 As shown, the top of the side plate 10 is provided with a fourth flange 13 extending inward and having an L-shaped cross-section. The cover plate 50 has fifth flanges 51 on both sides, covering the outer side of the fourth flange 13. The fourth flange 13 and the fifth flange 51 are used to seal the connection between the side plate 10 and the cover plate 50, reducing the risk of liquid or debris intrusion.

[0062] The other structures in this embodiment are the same as in Embodiment 1, and it can also achieve the beneficial effects of Embodiment 1.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above embodiment only expresses the preferred implementation of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the concept of the utility model, a number of variations and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A stepped cable tray, characterized in that, It comprises: Side plates; the number of side plates is two and they are arranged in mirror symmetry; the bottom end of each side plate is provided with a first folded edge which is bent inward from bottom to top to form an L shape; the first folded edge is provided with a first connecting hole; the inner side of the side plate is further provided with a limiting plate which extends horizontally inward, and the limiting plate is arranged in parallel above the first folded edge; the limiting plate is provided with a second connecting hole; A ladder beam bridging between two side plates; the two sides of the ladder beam are bent inward from bottom to top to form an L-shaped second folded edge; the two ends of the ladder beam are respectively abutted to the limiting plate; the bottom surface of the limiting plate is in abutment with the top of the second folded edge, and the top of the first folded edge is in abutment with the bottom of the second folded edge; the ladder beam is further provided with a through hole, and the first connecting hole, the through hole, and the second connecting hole are coaxially arranged in a direction parallel to the side plate; and A limiting screw connected to the ladder beam; at least one limiting screw is connected to each end of the ladder beam; the limiting screw is sequentially inserted into the first connecting hole, the through hole, and the second connecting hole to lock the end of the ladder beam between the first folded edge and the limiting plate.

2. The ladder-type cable tray according to claim 1, characterized in that, It further comprises: A layered plate connected to the ladder beam; The bottom of the layered plate is provided with a plug-in column extending towards the ladder beam; the plug-in column comprises a support section and an insertion section; the bottom of the support section is in abutment with the top surface of the ladder beam; the insertion section is inserted into the ladder beam; the top surface of the ladder beam is provided with a first positioning hole for the insertion of the insertion section.

3. The ladder-type cable tray according to claim 2, characterized in that, The two ends of the layered plate are respectively provided with a third folded edge extending downward.

4. The ladder-type cable tray according to claim 2, characterized in that, The number of layered plates is multiple and they are stacked together in the height direction of the side plate; the top surface of each layered plate is provided with a second positioning hole matched with the insertion section.

5. The ladder-type cable tray according to claim 1, characterized in that, It further comprises: A cover plate connected between two side plates; the cover plate is located at the top end of the side plate and is parallel to the ladder beam.

6. The ladder-type cable tray according to claim 5, characterized in that, The top end of the side plate is provided with a fourth folded edge extending inward and having an L-shaped cross section; the two sides of the cover plate are provided with a fifth folded edge covering the outer side of the fourth folded edge.

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