Ladder type cable bridge

Abstract

The utility model relates to a ladder type cable bridge which comprises two symmetrically arranged side plates, a ladder beam bridged between the two side plates, and a locking screw connected to the ladder beam. 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. Insertion openings are formed in the side plates. The side plates are further provided with limiting plates. The limiting plate is provided with a second connecting hole. And the end parts of the ladder beams are limited between the first folding edges and the limiting plates. The ladder beams are further provided with through holes. And the locking screw sequentially penetrates through the first connecting hole, the through hole and the second connecting hole. The detachable connection between the side plates and the ladder beams is achieved, the assembling difficulty is low, welding is not needed, and the machining difficulty is reduced. And meanwhile, the surfaces of the side plates and the ladder beams cannot be damaged by adopting the locking screws for serial connection, and the anti-rust capability is prevented from being weakened. Moreover, the side plates and the ladder beams can be assembled on a construction site, can be disassembled for storage and transportation, and are small in occupied space, easy to store and low in transportation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of cable bridge design, in particular to a ladder-type cable bridge. Background Art

[0002] At present, there are two main types of common cable trays, the first is the trough cable tray, and the second is the ladder cable tray. The trough cable tray mainly includes: a U-shaped trough body and a cover plate, which forms a cable accommodation space with a cross-section of a square. It is often used in places that require denser cable wiring and provide lateral protection, such as cable wiring in buildings, offices, shopping malls, residential areas, and underground passages. It can effectively protect cables and reduce the impact of dust and debris on cables. The ladder cable tray mainly includes: two parallel side panels and a ladder beam bridged between the two side panels. The U-shaped cable accommodation space is formed by the two side panels and the ladder beam. It is often used in situations where a large distance needs to be spanned and a large load is required, such as in industrial plants, spacious workshops, railways, highways, bridges and tunnels (especially when installed in the ceiling of a building, it has good privacy and is easy to install and repair). It is suitable for scenes where cables need to be frequently added or replaced, and is convenient for maintenance and management.

[0003] The disadvantages of traditional ladder-type cable trays are as follows: the two ends of the ladder beam are connected to the inner side of the side panel by welding, and the actual connection points correspond to several welding points. Moreover, the welding points are located on the inner side of the side panel, which are obstructed and difficult to process. At the same time, based on the need for rust prevention, most ladder-type cable trays are made of galvanized metal sheets. During welding, the surface of the galvanized metal sheets is easily damaged, which weakens the rust prevention ability. Furthermore, the welding process often needs to be completed in the manufacturer, and the welded ladder-type cable tray is large in size, not easy to store, and has high transportation costs. Utility Model Content

[0004] Based on this, the utility model provides a ladder-type cable tray, which realizes the detachable connection between the side plate and the ladder beam, has low assembly difficulty, and does not require welding, thereby reducing the difficulty of processing. At the same time, the use of locking screws in series will not damage the surface of the side plate and the ladder beam, thereby avoiding weakening the anti-rust ability. Furthermore, the side plate and the ladder beam can be assembled at the construction site, can be disassembled for storage and transportation, occupying a small space, being easy to store, and having low transportation costs.

[0005] A ladder-type cable tray, comprising:

[0006] Side panels; the number of the side panels is two and they are symmetrically arranged; the bottom end of each side panel is provided with a first folded edge extending outward and having an L-shaped cross section; the first folded edge is provided with a first connecting hole; the side panel is provided with a socket facing the first folded edge; the side panel is also provided with a limiting plate extending horizontally outward from the top end of the socket; the limiting plate is provided with a second connecting hole;

[0007] A ladder beam bridged between two side plates; the ladder beam is a square tube structure; the end of the ladder beam is inserted into the socket from the inner side of the side plate to the outside and is restricted between the first folded edge and the limit plate; the ladder beam is also provided with a through hole, and the second connection hole, the through hole, and the first connection hole are coaxial; and

[0008] A locking screw connected to the ladder beam; each end of the ladder beam is connected to at least one locking screw; the locking screws are inserted into the first connecting hole, the through hole, and the second connecting hole in sequence to connect the limit plate, the end of the ladder beam, and the first folded edge in series in sequence.

[0009] In the above-mentioned ladder-type cable tray, the two side panels are bridged by the ladder beam, and the two ends of the ladder beam are detachably connected to the side panels by locking screws. During assembly, the end of the ladder beam is inserted into the socket from the inner side of the side panel, and is limited by the first folding edge and the limit plate, and then locked by the locking screw. Through the above-mentioned design, a detachable connection between the side panel and the ladder beam is achieved, the assembly difficulty is low, and no welding is required, which reduces the processing difficulty. At the same time, the use of locking screws in series will not damage the surface of the side panel and the ladder beam, avoiding weakening of the anti-rust ability. Furthermore, the side panel and the ladder beam can be assembled at the construction site, and can be disassembled for storage and transportation, occupying a small space, easy to store, and low in transportation cost.

[0010] In one embodiment, the ladder-type cable tray further includes: a layered plate connected to the ladder beam; a plug-in column extending toward the ladder beam is provided at the bottom of the layered plate; the plug-in column includes: a support section and an insertion section; the bottom of the support section abuts against the top surface of the ladder beam; the insertion section is inserted into the ladder beam; the ladder beam is provided with a first positioning hole for the insertion section to be inserted. The layered plate can be used to divide the cable accommodation space, which is convenient for classifying and arranging the cables in layers. The plug-in column can support the layered plate and perform secondary division of the layer space, further realizing secondary classification and layout of cables on the same layer.

[0011] In one embodiment, both ends of the layered plate abut against the inner side of the side plate. The layered plate can achieve complete separation between layers and avoid cable stringing.

[0012] In one embodiment, the connector post is a cylindrical structure. The cylindrical connector post can avoid damage to the cable skin caused by scratching between the cable and the surface of the connector post during the wire pulling process.

[0013] In one embodiment, there are multiple layered plates and they are stacked in sequence along the height direction of the side plates; the top surface of each layered plate is provided with a second positioning hole matching the insertion section. Multiple layered plates can construct multiple layered spaces, improving the convenience of cable classification layout.

[0014] In one embodiment, the first connection hole and the second connection hole are both threaded holes. The threaded hole arrangement can eliminate the need for nuts, so that the locking screw can be directly threadedly connected to the first folded edge and the limiting plate.

[0015] In one embodiment, the ladder type cable tray further comprises: a cover plate connected between the two side plates; the cover plate is located at the top of the side plates and parallel to the ladder beam. The cover plate is used to prevent liquid or solid from invading the cable receiving space from above the side plates.

[0016] In one embodiment, the top of the side plate is provided with a second folded edge extending outward and having an L-shaped cross section; the two sides of the cover plate are provided with a third folded edge covering the outer side of the second folded edge. The second folded edge and the third folded edge cooperate with each other to prevent the cover plate from swaying sideways, reducing the risk of liquid or solid intrusion from the top of the side plate into the cable receiving space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional view of a ladder-type cable tray according to an embodiment of the utility model;

[0018] Figure 2 for Figure 1 A perspective view of another perspective of the ladder type cable tray shown;

[0019] Figure 3 for Figure 1 An exploded view of a ladder type cable tray is shown;

[0020] Figure 4 for Figure 1 A cross-sectional view of the ladder-type cable tray along the length direction is shown;

[0021] Figure 5 for Figure 1 A cross-sectional view of the ladder-type cable tray shown along the width direction;

[0022] Figure 6 for Figure 1 A perspective view of a ladder type cable tray with the cover hidden;

[0023] Figure 7 for Figure 6 A perspective view of a ladder type cable tray shown with the tiered panels hidden;

[0024] Figure 8 for Figure 6 A perspective view of a side panel in a ladder-type cable tray is shown;

[0025] Fig. 9 for Figure 8 A perspective view of another perspective of the side panel shown;

[0026] Fig.10 for Figure 6 A perspective view of a ladder beam in a ladder type cable tray is shown;

[0027] Fig.11 for Fig.10 A perspective view of the ladder beam is shown.

[0028] The meanings of the symbols in the accompanying drawings are:

[0029] 100-Ladder type cable tray;

[0030] 10-side plate, 11-first folded edge, 111-first connecting hole, 12-socket, 13-limiting plate, 131-second connecting hole, 14-second folded edge;

[0031] 20-ladder beam, 21-through hole, 22-first positioning hole;

[0032] 30-locking screw;

[0033] 40-layered plate, 41-connector column, 411-support section, 412-insertion section, 42-second positioning hole;

[0034] 50-cover plate, 51-third folded edge. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0041] like Figures 1 to 11 As shown, it is a ladder-type cable tray 100 according to an embodiment of the present invention.

[0042] like Figure 1 and Figure 2As shown, the ladder type cable tray 100 includes: two symmetrically arranged side panels 10, a ladder beam 20 bridged between the two side panels 10, and a locking screw 30 connected to the ladder beam 20. The two side panels 10 and the ladder beam 20 form a U-shaped receiving space for receiving cables. The locking screw 30 is used to achieve a detachable connection between the side panels 10 and the ladder beam 20.

[0043] Below, combined Figures 1 to 11 , the above-mentioned ladder-type cable tray 100 is further explained.

[0044] like Figure 8 and Fig. 9 As shown, the bottom end of each side panel 10 is provided with a first folded edge 11 extending outward and having an L-shaped cross section, and the first folded edge 11 is provided with a first connection hole 111. The side panel 10 is provided with a socket 12 facing the first folded edge 11. The side panel 10 is also provided with a limit plate 13 extending horizontally outward from the top end of the socket 12. The limit plate 13 is provided with a second connection hole 131.

[0045] like Fig.10 and Fig.11 As shown, the ladder beam 20 is a square tube structure. Figure 6 and Figure 7 As shown, the end of the ladder beam 20 is inserted into the socket 12 from the inside of the side plate 10 and is restricted between the first folded edge 11 and the limit plate 13. The ladder beam 20 is also provided with a through hole 21, and the second connecting hole 131, the through hole 21, and the first connecting hole 111 are coaxial. Figure 6 As shown, when the end of the ladder beam 20 extends from the inner side of the side plate 10 to the outer side of the side plate 10 through the socket 12 until it abuts against the inner side of the first folding edge 11, the ladder beam 20 cannot continue to extend outward, and the end of the ladder beam 20 is restricted from the width direction of the side plate 10 (corresponding to the width direction of the ladder-type cable tray 100). At the same time, the top surface of the end of the ladder beam 20 abuts against the bottom surface of the limit plate 13, and the bottom surface of the end of the ladder beam 20 abuts against the "trough" surface of the first folding edge 11, thereby restricting the end of the ladder beam 20 from the height direction of the side plate 10.

[0046] like Figure 6 As shown, each end of the ladder beam 20 is connected to at least one locking screw 30. The locking screw 30 is inserted into the first connection hole 111, the through hole 21, and the second connection hole 131 in sequence to connect the limit plate 13, the end of the ladder beam 20, and the first folded edge 11 in series.

[0047] like Figure 4 and Figure 5As shown, in this embodiment, the first connection hole 111 and the second connection hole 131 are both threaded holes. The threaded hole arrangement can eliminate the need for nuts, so that the locking screw 30 can be directly threadedly connected to the first folded edge 11 and the limiting plate 13. In other embodiments, if the first connection hole 111 and the second connection hole 131 are both through holes without threads, the locking screw 30 needs to be used with a nut.

[0048] Considering that when multiple cables need to be stored in the same ladder-type cable tray 100, the cables will be messy. In order to facilitate regularity, a structure for dividing the storage space of the ladder-type cable tray 100 can also be provided.

[0049] For example, Figures 2 to 5 As shown, in this embodiment, the ladder type cable tray 100 may further include: a layered plate 40 connected to the ladder beam 20. Figures 3 to 5 As shown, the bottom of the layered plate 40 is provided with a plug-in column 41 extending toward the ladder beam 20. The plug-in column 41 includes: a support section 411 and an insertion section 412. The bottom of the support section 411 abuts against the top surface of the ladder beam 20. The insertion section 412 is inserted into the ladder beam 20. Figure 3 As shown, the ladder beam 20 is provided with a first positioning hole 22 for inserting the insertion section 412. The layering plate 40 can be used to divide the cable storage space, so as to facilitate the classification and layering of the cables. The plug-in column 41 can support the layering plate 40 and perform secondary division of the layer space, further realizing the secondary classification and layout of the cables on the same layer. Figure 5 As shown in the figure, after two space divisions, the U-shaped receiving space is cut into a well-shaped combined receiving space.

[0050] Furthermore, if Figure 6 As shown, in this embodiment, both ends of the layered plate 40 abut against the inner side surface of the side plate 10. The layered plate 40 can achieve complete separation between layers and avoid cable stringing.

[0051] In addition, when the cable is pulled, it may be scratched against the surface of the plug post 41, causing skin damage. Figure 3 As shown, in this embodiment, the plug post 41 is a cylindrical structure. The cylindrical plug post 41 can avoid damage to the cable skin caused by scratching the surface of the cable and the plug post 41 during the wire pulling process.

[0052] like Figures 3 to 5As shown, in this embodiment, the number of layered plates 40 is multiple and they are stacked together in sequence along the height direction of the side plate 10. The top surface of each layered plate 40 is provided with a second positioning hole 42 that matches the insertion section 412. Multiple layered plates 40 can construct multiple layered spaces, improving the convenience of cable classification layout. Moreover, since the layered plates 40 and the ladder beam 20 and the adjacent two layered plates 40 are connected by plug-in connection, the user can select the number of layered plates 40 according to the needs, so as to meet different space division needs.

[0053] To better protect the cables, Figures 1 to 3 As shown, in this embodiment, the ladder type cable tray 100 may further include: a cover plate 50 connected between the two side plates 10. The cover plate 50 is located at the top of the side plate 10 and is parallel to the ladder beam 20. The cover plate 50 is used to prevent liquid or solid from invading the cable receiving space from above the side plate 10.

[0054] Furthermore, if Figure 8 As shown, the top end of the side plate 10 may be provided with a second folded edge 14 extending outward and having an L-shaped cross section. Figure 3 As shown, the cover plate 50 is provided with a third fold 51 on both sides covering the outer side of the second fold 14. The second fold 14 and the third fold 51 cooperate with each other to prevent the cover plate 50 from swaying sideways, reducing the risk of liquid or solid intrusion from the top of the side plate 10 into the cable receiving space.

[0055] Brief description of working principle:

[0056] like Figure 3 As shown, during assembly, the ladder beam 20 is placed inside the two side panels 10, and then the two ends of the ladder beam 20 are respectively inserted into the sockets 12 of the side panels 10 until the end of the ladder beam 20 abuts against the inner side of the folded edge, and then the side panels 10 and the ladder beam 20 are connected in series and fixed by the locking screws 30. The two side panels 10 are bridged by the ladder beam 20, and the two ends of the ladder beam 20 are detachably connected to the side panels 10 by the locking screws 30. During assembly, after the end of the ladder beam 20 is inserted into the socket 12 from the inner side of the side panel 10, it is limited by the first folded edge 11 and the limit plate 13, and then locked by the locking screws 30.

[0057] In addition, the second folded edge 14 of the side panel 10 and the third folded edge 51 of the cover panel 50 are both folded outward, so after the side panel 10 and the ladder beam 20 are assembled, if a layered plate 40 needs to be added, it is only necessary to remove the cover panel 50 and insert the layered plate 40 into the ladder beam 20 from top to bottom.

[0058] The ladder type cable tray 100 realizes a detachable connection between the side plate 10 and the ladder beam 20, has low assembly difficulty, and does not require welding, thereby reducing the difficulty of processing. At the same time, the use of locking screws 30 in series connection will not damage the surface of the side plate 10 and the ladder beam 20, thereby avoiding weakening the anti-rust ability. Furthermore, the side plate 10 and the ladder beam 20 can be assembled at the construction site, can be disassembled for storage and transportation, occupy a small space, are easy to store, and have low transportation costs.

[0059] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, 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.

[0060] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A ladder-type cable tray, characterized in that: include: Side panels; the number of the side panels is two and they are symmetrically arranged; the bottom end of each side panel is provided with a first folded edge extending outward and having an L-shaped cross section; the first folded edge is provided with a first connecting hole; the side panel is provided with a socket facing the first folded edge; the side panel is also provided with a limiting plate extending horizontally outward from the top end of the socket; the limiting plate is provided with a second connecting hole; A ladder beam bridged between the two side plates; the ladder beam is a square tube structure; the end of the ladder beam is inserted into the socket from the inner side of the side plate to the outside and is restricted between the first folded edge and the limit plate; the ladder beam is also provided with a through hole, and the second connection hole, the through hole, and the first connection hole are coaxial; and A locking screw connected to the ladder beam; each end of the ladder beam is connected to at least one of the locking screws; The locking screw is inserted into the first connection hole, the through hole, and the second connection hole in sequence to connect the limit plate, the end of the ladder beam, and the first folded edge in sequence.

2. The ladder type cable tray according to claim 1, characterized in that: Also includes: a layered plate connected to the ladder beam; The bottom of the layered plate is provided with a connecting column extending toward the ladder beam; the connecting column includes: 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; the ladder beam is provided with a first positioning hole for inserting the insertion section.

3. The ladder type cable tray according to claim 2, characterized in that: Both ends of the layered plate abut against the inner side surfaces of the side plates.

4. The ladder type cable tray according to claim 2, characterized in that: The connecting column is a cylindrical structure.

5. The ladder type cable tray according to claim 2, characterized in that: There are multiple layered plates, which are stacked in sequence along the height direction of the side plates; and the top surface of each layered plate is provided with a second positioning hole matching the insertion section.

6. The ladder type cable tray according to claim 1, characterized in that: The first connecting hole and the second connecting hole are both threaded holes.

7. The ladder type cable tray according to any one of claims 1 to 6, characterized in that: Also includes: A cover plate is connected between the two side plates; the cover plate is located at the top end of the side plates and is parallel to the ladder beam.

8. The ladder type cable tray according to claim 7, characterized in that: The top end of the side plate is provided with a second folded edge extending outward and having an L-shaped cross section; the two sides of the cover plate are provided with a third folded edge covering the outer side of the second folded edge.

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