A bridge

Abstract

The utility model provides a kind of bridge, including side plate body, the side plate body upper end is equipped with inlay mouth, one side of the side plate body lower end is equipped with outer extension lower groove rim, lower clamping groove and upper groove rim, the side plate body is two groups spaced and symmetrically arranged;It further includes the bottom plate clamped in the lower clamping groove of two side plate bodies, the upper section of two side plate bodies one side opposite each other is equipped with the upper supporting shoulder and upper baffle edge extending towards each other direction, the upper supporting shoulder and upper baffle edge jointly constitute inlay mouth;It further includes cover plate, the cover plate is cut down according to the distance between two inlay mouths so that the length direction both ends are respectively embedded in inlay mouth, when cover plate is embedded, the upper section of two side plate bodies is away from each other and makes the upper section of two side plate bodies lower end produce elastic deformation and store power, after cover plate is embedded, the upper section of two side plate bodies is mutually close and resets so that upper baffle edge prevents cover plate from coming out.The utility model has the advantages of being able to ignore the width of side plate spacing, adaptive cutting of cover plate according to actual installation occasion and reliable installation can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of wiring / conduit consumables, specifically to a cable tray. Background Technology

[0002] Cable trays come in various types, including metal and extruded. Extruded cable trays require a base plate to be installed between the lower slots at the bottom of the two side plates. After fixing, wiring / conduit installation is carried out, and finally, a cover plate is attached to the top of the two side plates to complete the installation. Currently, the cover plate is fixed by relying on the slots on the top of the side plates, which are matched with the hooks on both sides of the bottom width of the cover plate. The two need to be fixed by first bringing the upper parts of the two side plates together, and then using the elastic reset between the two side plates to achieve the engagement of the hooks and slots. This results in the cover plate having the same length direction as the side plate during production. If the width between the two side plates is adjusted according to the installation occasion, the cover plate will not be able to fit due to insufficient width, and it is necessary to purchase cover plates of the corresponding width or re-mold and produce cover plates of other specifications and sizes. In addition, the rigidity requirements of the bottom position of the side plate are relatively high. If the installation is not done properly, the lower slot between the bottom of the side plate and the base plate can easily break or plastically deform, thus affecting the reliability of the cover plate's fixation. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a cable tray that can disregard the side plate spacing width, adapt the cover plate to the actual installation occasion, and ensure reliable installation.

[0004] To address the above problems, the following technical solution is provided: A cable tray includes side plates formed by extrusion molding. The upper end of the side plate has a fitting opening, and one side of the lower end of the side plate has an extended lower groove edge and an upper groove edge located above the lower groove edge and spaced apart to form a lower slot. The side plates are arranged in two sets, spaced apart and symmetrically. The tray also includes a base plate, the two sides of which are fitted into the lower slots of the side plates. The upper sections of the side plates have upper shoulders extending in opposite directions and upper guard edges located above them and spaced apart. The upper shoulders and upper guard edges together form a fitting opening, and the extension length of the upper shoulders is greater than the extension length of the upper guard edges. The tray also includes an extruded cover plate, the cover plate being cut according to the distance between the two fitting openings so that its two ends in the length direction are respectively fitted into the fitting openings. When the cover plate is fitted, the upper sections of the side plates move away from each other and the lower ends of the upper sections of the side plates undergo elastic deformation to store force. After the cover plate is fitted, the upper sections of the side plates move closer together and reset, so that the upper guard edges prevent the cover plate from falling out.

[0005] The present invention is further configured such that the cross section of the cover plate in the length direction is provided with weight-reducing grooves arranged at intervals along its width direction, each weight-reducing groove being opened along the length direction of the cover plate and forming a reinforcing wall between adjacent weight-reducing grooves.

[0006] The present invention is further provided that a guide bevel is provided at the junction of the upper surface of the upper stop and the side of the plate facing the other side.

[0007] The present invention is further provided with an elastic groove at the junction of the bottom of the fitting opening and the upper stop edge; the lower surface of the upper stop edge is inclined so that the fitting opening presents a V shape.

[0008] The present invention is further configured such that the upper sections of the two side plates facing away from each other are provided with external slots opened along their length.

[0009] The present invention is further configured such that the side plate body below the upper groove edge and the cross section of the lower groove edge are embedded with reinforcing ribs. The reinforcing ribs include a vertical plate embedded in the side plate body and a horizontal plate embedded in the lower groove edge. The vertical plate and the horizontal plate are connected to each other so that the cross section of the reinforcing ribs is L-shaped. The upper end of the vertical plate is provided with a plurality of inner support pieces that are stamped inward and arranged at intervals along the length direction of the reinforcing ribs, and an outer support piece that is stamped outward. The end of the horizontal plate away from the vertical plate is provided with a plurality of upper support pieces that are stamped inward and arranged at intervals along the length direction of the reinforcing ribs, and a lower support piece that is stamped downward. The end of the inner support piece is flush with the side of the side plate body with the lower groove edge, the end of the outer support piece is flush with the side of the side plate body away from the lower groove edge, the end of the upper support piece is flush with the upper surface of the lower groove edge, and the end of the lower support piece is flush with the lower surface of the lower groove edge.

[0010] The present invention is further configured such that: at the connection between the vertical plate and the horizontal plate, there are a plurality of vertical support pieces extending vertically downwards from the horizontal plate after being stamped and spaced apart along the length of the reinforcing rib; at the connection between the horizontal plate and the vertical plate, there are a plurality of horizontal support pieces extending horizontally outwards from the vertical plate after being stamped and spaced apart along the length of the reinforcing rib; the ends of the vertical support pieces are flush with the lower surface of the lower groove edge, and the ends of the horizontal support pieces are flush with the side of the side plate facing away from the lower groove edge; the inner support pieces and the upper support pieces are located on the same virtual section one of the reinforcing rib; the outer support pieces and the lower support pieces are located on the same virtual section two of the reinforcing rib; the vertical support pieces are located between adjacent horizontal support pieces; the vertical support pieces are located on virtual section three between virtual section one and virtual section two, and the horizontal support pieces are located on virtual section four between virtual section two and virtual section one.

[0011] The present invention is further configured such that the ends of the inner support plate, outer support plate, upper support plate and lower support plate are rounded on both sides corresponding to the length direction of the reinforcing rib; the grooves of the inner support plate, outer support plate, upper support plate and lower support plate after material taking are rounded on both sides; the ends of the vertical support plate and horizontal support plate are rounded on both sides corresponding to the length direction of the reinforcing rib.

[0012] The present invention is further configured such that the reinforcing rib is made of metal; the vertical plate has a vertical recess extending along the length of the reinforcing rib on its cross section, and the horizontal plate has a horizontal recess extending along the length of the reinforcing rib on its cross section.

[0013] The present invention is further provided that both the side of the lower groove edge facing the lower slot and the side of the upper groove edge facing the lower slot are provided with engaging protrusions extending along the length direction of the reinforcing rib.

[0014] The beneficial effects of this utility model are: 1. The traditional cover plate, whose length direction is consistent with the length direction of the two side plates, is adjusted to be arranged at a 90-degree angle with the length direction of the two side plates. When the spacing between the two side plates changes, the cover plate of the corresponding length can be cut according to the width between the two side plates for installation. It has a wide range of applications and does not require re-molding. The cover plate is installed by the expansion between the two side plates. After installation, the two side plates are reset to fix the two ends of the cover plate. This effectively avoids the inherent flaw of the existing cover plate, which requires hooks on both sides of the width direction, making it impossible to adjust the width adaptably. 2. The guide angle is used to guide the two ends of the cover plate to push against the two side plates during the installation of the cover plate, so that both of them expand; 3. During the installation of the cover plate, the elastic groove makes it easier for the upper stop edge to be snapped into place. After the cover plate is snapped into place, when the two sides of the plate come together to reset, the lower surface of the inclined upper stop edge is used to constrain the cover plate to reduce the gap with the mating joint. 4. The external slot can be used with traditional cover plates with hooks, making it more adaptable to different installations; 5. By embedding L-shaped reinforcing ribs between the side plate and the lower groove edge, the rigidity between the side plate and the lower groove edge is improved, thereby enhancing the fixing reliability of the upper end of the side plate when installing the cover plate. Since the reinforcing ribs are embedded during the extrusion molding of the side plate, their position within the cavity is prone to deviation. Therefore, several inner support plates, outer support plates, upper support plates, and lower support plates are stamped on the reinforcing ribs and spaced apart along their length. This allows the reinforcing ribs to be reliably positioned by abutting against the inner wall of the cavity when passing through it, ensuring the centered arrangement of the reinforcing ribs within the side plate and the lower groove edge, and guaranteeing the uniformity of the extrusion coating. 6. Vertical and horizontal support plates are set to assist in positioning at the junction of the vertical and horizontal plates, further improving the positioning accuracy of the reinforcing ribs; Virtual section one is located between adjacent virtual section two, so that the inner support plates, upper support plates and outer support plates, lower support plates are arranged at intervals along the length of the reinforcing ribs; This realizes that after arranging the inner support plates and upper support plates simultaneously along the length of the reinforcing ribs, the horizontal support plates are arranged, and then the outer support plates and lower support plates are arranged simultaneously, and then the vertical support plates are arranged to form a cycle. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the combined state of this utility model.

[0016] Figure 2 This is a schematic diagram of the exploded three-dimensional structure of this utility model.

[0017] Figure 3 This is a first-view three-dimensional structural diagram of the side plate of this utility model.

[0018] Figure 4 This is a schematic diagram of the overall three-dimensional structure of the side plate of this utility model from a second perspective.

[0019] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the side plate of this utility model.

[0020] Figure 6 This is a first-view three-dimensional structural diagram of the reinforcing rib of this utility model.

[0021] Figure 7 This is a two-dimensional structural diagram of the reinforcing rib plate of this utility model from a second perspective.

[0022] Figure 8 This is a schematic diagram of the virtual cross-section of this utility model.

[0023] Figure 9 This is a schematic diagram of the virtual cross-section of the present invention.

[0024] Figure 10 This is a schematic diagram of the virtual cross-section structure of this utility model.

[0025] Figure 11 This is a schematic diagram of the virtual cross-section of the present invention.

[0026] Figure 12 This utility model Figure 2 A magnified structural diagram of part A.

[0027] The labels in the diagram have the following meanings: 10-Side plate; 11-Matching opening; 111-Elastic groove; 12-Lower groove edge; 13-Lower locking groove; 131-Locking protrusion; 14-Upper groove edge; 15-Upper support shoulder; 16-Upper stop edge; 161-Guide angle; 17-Outer locking groove; 20-Bottom plate; 30-Cover plate; 31-Weight reduction groove; 32-Reinforcing wall; 40-Reinforcing rib plate; 41-Vertical plate; 411-Inner support piece; 412-Outer support piece; 413-Vertical support piece; 414-Vertical recess; 42-Horizontal plate; 421-Upper support piece; 422-Lower support piece; 423-Horizontal support piece; 424-Horizontal recess; 43-Rounded. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0029] refer to Figures 1 to 12 ,like Figures 1 to 12 The cable tray shown includes side plates 10 formed by extrusion molding. The upper end of the side plate 10 has a fitting opening 11. One side of the lower end of the side plate 10 has an extended lower groove edge 12 and an upper groove edge 14 located above and spaced apart from the lower groove edge 12 to form a lower retaining groove 13. The side plates 10 are arranged in two sets, spaced apart and symmetrically. It also includes a base plate 20, whose two sides are fitted into the lower retaining grooves 13 of the side plates 10. The upper sections of the side plates 10 facing each other have upper shoulders 15 extending in opposite directions and upper shoulders located above and between them. The upper baffle 16 is spaced apart, and the upper shoulder 15 and the upper baffle 16 together form a fitting opening 11. The extension length of the upper shoulder 15 is greater than the extension length of the upper baffle 16. It also includes an extruded cover plate 30. The cover plate 30 is cut according to the distance between the two fitting openings 11 so that its two ends in the length direction are respectively inserted into the fitting openings 11. When the cover plate 30 is inserted, the upper sections of the two side plates 10 move away from each other and the lower ends of the upper sections of the two side plates 10 generate elastic deformation to store force. After the cover plate 30 is inserted, the upper sections of the two side plates 10 move closer to each other and reset so that the upper baffle 16 prevents the cover plate 30 from falling out.

[0030] In the above structure, the cover plate 30, which is traditionally aligned with the length of the two side plates 10, is adjusted to be arranged at a 90-degree angle to the length of the two side plates 10. When the distance between the two side plates 10 changes, the cover plate 30 of the corresponding length can be cut according to the width between the two side plates 10 for installation. This has a wide range of applications and does not require re-molding. The cover plate 30 is installed by the expansion between the two side plates 10. After installation, the two side plates 10 are reset to fix the two ends of the cover plate 30. This effectively avoids the inherent drawback of the existing cover plate 30, which requires hooks on both sides in the width direction, making it impossible to adjust the width adaptably.

[0031] In this embodiment, the cross section of the cover plate 30 along its length direction is provided with weight-reducing grooves 31 spaced apart along its width direction. Each weight-reducing groove 31 is opened along the length direction of the cover plate 30 and a reinforcing wall 32 is formed between adjacent weight-reducing grooves 31.

[0032] The above structure reduces weight while ensuring strength, effectively saves materials, and reduces material shrinkage.

[0033] In this embodiment, a guide bevel 161 is provided at the junction of the upper surface of the upper edge 16 and the side facing the other side plate 10.

[0034] In the above structure, when the cover plate 30 is installed, the two ends of the cover plate 30 are guided to push against the two side plates 10 to expand them.

[0035] In this embodiment, an elastic groove 111 is provided at the junction of the bottom of the fitting opening 11 and the upper stop 16; the lower surface of the upper stop 16 is inclined so that the fitting opening 11 presents a V shape.

[0036] In the above structure, when the cover plate 30 is installed, the upper stop 16 is lowered by the elastic groove 111 to make it easier for the cover plate 30 to be snapped in. After the cover plate 30 is snapped in, when the two side plates 10 come together and reset, the lower surface of the inclined upper stop 16 is used to constrain the cover plate 30 to reduce the gap with the fitting opening 11.

[0037] In this embodiment, the upper section of the two side plates 10 facing away from each other is provided with an outer slot 17 opened along its length direction.

[0038] In the above structure, the outer slot 17 can be used in conjunction with the traditional cover plate 30 with hooks, making it more adaptable to installation.

[0039] In this embodiment, the side plate 10 below the upper groove edge 14 and the lower groove edge 12 are embedded with reinforcing ribs 40. The reinforcing ribs 40 include a vertical plate 41 embedded in the side plate 10 and a horizontal plate 42 embedded in the lower groove edge 12. The vertical plate 41 and the horizontal plate 42 are connected to each other so that the cross section of the reinforcing ribs 40 is L-shaped. The upper end of the vertical plate 41 is provided with a plurality of inner support pieces 411 that are stamped inward and arranged at intervals along the length direction of the reinforcing ribs 40, and outer support pieces 412 that are stamped outward. The horizontal plate 42 is provided with a plurality of upper support pieces 421 that are stamped inward and turned upward and are spaced apart along the length of the reinforcing rib plate 40, and lower support pieces 422 that are stamped downward; the end of the inner support piece 411 is flush with the side of the side plate 10 with the lower groove edge 12, the end of the outer support piece 412 is flush with the side of the side plate 10 away from the lower groove edge 12, the end of the upper support piece 421 is flush with the upper surface of the lower groove edge 12, and the end of the lower support piece 422 is flush with the lower surface of the lower groove edge 12.

[0040] In the above structure, the rigidity between the side plate 10 and the lower groove edge 12 is improved by embedding an L-shaped reinforcing rib 40 between the side plate 10 and the lower groove edge 12, thereby improving the fixing reliability of the upper end of the side plate 10 when the cover plate 30 is installed. Since the reinforcing rib 40 is embedded during the extrusion molding of the side plate 10, its position in the cavity is prone to deviation. Therefore, several inner support pieces 411, outer support pieces 412, upper support pieces 421 and lower support pieces 422 are formed on the reinforcing rib 40 by stamping, which are spaced apart along its length. This allows the reinforcing rib 40 to be reliably positioned by the inner support pieces 411, outer support pieces 412, upper support pieces 421 and lower support pieces 422 abutting against the inner wall of the cavity when passing through the cavity, thus satisfying the central arrangement of the reinforcing rib 40 in the side plate 10 and the lower groove edge 12 and ensuring the uniformity of the extrusion coating.

[0041] In this embodiment, at the connection between the vertical plate 41 and the horizontal plate 42, there are a plurality of vertical support plates 413 that are formed by stamping material from the horizontal plate 42 and extending vertically downwards and spaced apart along the length of the reinforcing rib plate 40; at the connection between the horizontal plate 42 and the vertical plate 41, there are a plurality of horizontal support plates 423 that are formed by stamping material from the vertical plate 41 and extending horizontally outwards in the direction of the outward extension of the support plates 412 and spaced apart along the length of the reinforcing rib plate 40; the ends of the vertical support plates 413 are flush with the lower surface of the lower groove edge 12, and the ends of the horizontal support plates 423 are flush with the side of the side plate 10 facing away from the lower groove edge 12; the inner support plates 411 and the upper support plates 421 are located on the same virtual cross section of the reinforcing rib plate 40 (reference). Figure 8 The outer support plate 412 and the lower support plate 422 are located on the same virtual cross section (reference) of the reinforcing rib plate 40. Figure 10 The vertical support plate 413 is located between adjacent horizontal support plates 423; the vertical support plate 413 is located on the virtual cross section (reference). Figure 8 ) and Virtual Section 2 (Reference) Figure 10 The virtual cross-section between the three (reference) Figure 11 The horizontal support plate 423 is located at virtual section two (reference). Figure 10 ) and Virtual Section 1 (Reference) Figure 8 Virtual cross-sections between (reference) Figure 9 )superior.

[0042] In the above structure, vertical support plates 413 and horizontal support plates 423 are provided to assist in positioning at the junction of the vertical plate 41 and the horizontal plate 42, further improving the positioning accuracy of the reinforcing rib plate 40; Virtual section one (reference) Figure 8 Located in adjacent virtual section two (reference) Figure 10Between the inner support plates 411 and upper support plates 421 and the outer support plates 412 and lower support plates 422 in the length direction of the reinforcing rib plate 40, the inner support plates 411 and upper support plates 421 are arranged at intervals with each other; this realizes that after arranging the inner support plates 411 and upper support plates 421 in the length direction of the reinforcing rib plate 40, the horizontal support plates 423 are arranged, and then the outer support plates 412 and lower support plates 422 are arranged at the same time, and then the vertical support plates 413 are arranged to form a cycle.

[0043] In this embodiment, the ends of the inner support plate 411, outer support plate 412, upper support plate 421 and lower support plate 422 are all rounded 43 on both sides corresponding to the length direction of the reinforcing rib plate 40; the grooves of the inner support plate 411, outer support plate 412, upper support plate 421 and lower support plate 422 after material taking are all rounded 43 on both sides; the ends of the vertical support plate 413 and horizontal support plate 423 are all rounded 43 on both sides corresponding to the length direction of the reinforcing rib plate 40.

[0044] In the above structure, the reinforcing rib 40 needs to move together with the side plate 10 during molding, and the rounded 43 can reduce the scraping between it and the cavity.

[0045] In this embodiment, the reinforcing rib 40 is made of metal; the vertical plate 41 has a vertical recess 414 extending along the length of the reinforcing rib 40 on its cross-section, and the horizontal plate 42 has a horizontal recess 424 extending along the length of the reinforcing rib 40 on its cross-section.

[0046] In the above structure, the vertical recess 414 and the horizontal recess 424 can be arranged in several groups that are spaced apart and side by side as needed to improve the overall rigidity.

[0047] In this embodiment, both the side of the lower groove edge 12 facing the lower slot 13 and the side of the upper groove edge 14 facing the lower slot 13 are provided with engaging protrusions 131 extending along the length direction of the reinforcing rib plate 40.

[0048] In the above structure, the engaging protrusion 131 engages and fixes with the base plate 20 during the assembly of the side plate body 10 to improve the fixing strength.

[0049] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A cable tray, comprising side plates formed by extrusion molding, wherein the upper end of the side plates is provided with a fitting opening, and one side of the lower end of the side plates is provided with an extended lower groove edge and an upper groove edge located above the lower groove edge and spaced apart from the lower groove edge to form a lower retaining groove, the side plates being two sets spaced apart and symmetrically arranged; further comprising a base plate, the base plate being fitted into the lower retaining grooves of the side plates on both sides, characterized in that: The upper sections of the two side plates are provided with upper shoulders extending in the direction of each other and upper guards located above them at intervals. The upper shoulders and upper guards together form a fitting opening, and the extension length of the upper shoulders is greater than the extension length of the upper guards. It also includes an extruded cover plate. The cover plate is cut according to the distance between the two fitting openings so that its two ends in the length direction are respectively inserted into the fitting openings. When the cover plate is inserted, the upper sections of the two side plates move away from each other and the lower ends of the upper sections of the two side plates undergo elastic deformation to store force. After the cover plate is inserted, the upper sections of the two side plates move closer together to reset so that the upper guards prevent the cover plate from falling out.

2. A cable tray according to claim 1, characterized in that: The cover plate has a cross-section along its length with weight-reducing grooves spaced apart along its width. Each weight-reducing groove is opened along the length of the cover plate and a reinforcing wall is formed between adjacent weight-reducing grooves.

3. A cable tray according to claim 1, characterized in that: A guide bevel is provided at the junction of the upper surface of the upper stop and the side of the plate facing the other side.

4. A cable tray according to claim 1, 2, or 3, characterized in that: An elastic groove is provided at the junction of the bottom of the fitting opening and the upper stop edge; the lower surface of the upper stop edge is inclined so that the fitting opening presents a V shape.

5. A cable tray according to claim 1, 2, or 3, characterized in that: The upper sections of both side plates, facing away from each other, are provided with external slots along their length.

6. A cable tray according to claim 1, characterized in that: The side plate body below the upper groove edge and the cross section of the lower groove edge are embedded with reinforcing ribs. The reinforcing ribs include a vertical plate embedded in the side plate body and a horizontal plate embedded in the lower groove edge. The vertical plate and the horizontal plate are connected to each other so that the cross section of the reinforcing rib is L-shaped. The upper end of the vertical plate is provided with a plurality of inner support pieces that are stamped inward and arranged at intervals along the length direction of the reinforcing rib, and an outer support piece that is stamped outward. The end of the horizontal plate away from the vertical plate is provided with a plurality of upper support pieces that are stamped inward and arranged at intervals along the length direction of the reinforcing rib, and a lower support piece that is stamped downward. The end of the inner support piece is flush with the side of the side plate body with the lower groove edge, the end of the outer support piece is flush with the side of the side plate body away from the lower groove edge, the end of the upper support piece is flush with the upper surface of the lower groove edge, and the end of the lower support piece is flush with the lower surface of the lower groove edge.

7. A cable tray according to claim 6, characterized in that: The vertical plate and the horizontal plate are connected by a plurality of vertical support pieces extending vertically downward from the horizontal plate and spaced apart along the length of the reinforcing rib; the horizontal plate and the vertical plate are connected by a plurality of horizontal support pieces extending outward from the vertical plate and spaced apart along the length of the reinforcing rib; the ends of the vertical support pieces are flush with the lower surface of the lower groove edge, and the ends of the horizontal support pieces are flush with the side of the side plate facing away from the lower groove edge; the inner support piece and the upper support piece are located on the same virtual section one of the reinforcing rib; the outer support piece and the lower support piece are located on the same virtual section two of the reinforcing rib; the vertical support piece is located between adjacent horizontal support pieces; the vertical support piece is located on virtual section three between virtual section one and virtual section two, and the horizontal support piece is located on virtual section four between virtual section two and virtual section one.

8. A cable tray according to claim 7, characterized in that: The inner support plate, outer support plate, upper support plate, and lower support plate all have rounded ends on both sides corresponding to the length direction of the reinforcing rib; the inner support plate, outer support plate, upper support plate, and lower support plate all have rounded ends on both sides of the groove after material extraction; the vertical support plate and horizontal support plate all have rounded ends on both sides corresponding to the length direction of the reinforcing rib.

9. A cable tray according to claim 6, characterized in that: The reinforcing rib is made of metal; the vertical plate has a vertical recess extending along the length of the reinforcing rib on its cross-section, and the horizontal plate has a horizontal recess extending along the length of the reinforcing rib on its cross-section.

10. A cable tray according to claim 1, characterized in that: Both the lower groove edge facing the lower slot and the upper groove edge facing the lower slot are provided with engaging protrusions extending along the length of the reinforcing rib.

Images