Ladder type bridge

Abstract

The utility model relates to the technical field of bridges, in particular to a ladder type bridge which comprises a bridge body, the bridge body comprises two oppositely-arranged bridge side plates, extension plates are arranged at the bottoms of one sides of the bridge side plates, a plurality of evenly-distributed cross arms are arranged between the two extension plates, and a supporting assembly is arranged between every two adjacent cross arms. The supporting assembly comprises two oppositely-arranged telescopic joints, mounting plates are rotationally arranged on the outer sides of the telescopic joints, clamping plates are movably arranged at the two ends of each telescopic joint, a supporting column is arranged on the inner side of one telescopic joint, a connecting groove is formed in the supporting column, and a connecting rod with one end connected with the other telescopic joint is slidably arranged in the connecting groove. When a wire with good flexibility is laid on the bridge body, the support assembly can provide stable support between the two adjacent cross arms, so that the problem that the wire at the exposed part between the two adjacent cross arms droops downwards is solved, the overall uniformity is ensured, and the safety and stability of the ladder type bridge in long-term use are improved.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, and in particular to a ladder-type cable tray. Background Technology

[0002] Cable trays are categorized into various structures, including trough-type, tray-type, ladder-type, and mesh-type cable trays. They can be installed independently or laid on various buildings, structures, and pipe rack supports. They feature simple structure, aesthetically pleasing appearance, flexible configuration, and convenient maintenance. All parts must be galvanized. For cable trays installed outdoors, especially near the sea or in corrosive areas, the material must possess properties such as corrosion resistance, moisture resistance, good adhesion, and high impact resistance.

[0003] Existing ladder-type cable trays mainly rely on crossarms to hold the wires in place during use. By binding the wires with crossarms, some wires are quite flexible and can easily droop downwards in certain areas, thus affecting the overall neatness. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a ladder-type cable tray. This solves the problem that existing ladder-type cable trays mainly rely on crossarms to hold the wires at the top. Because some wires are quite flexible, they are prone to drooping downwards in certain areas, which affects the overall neatness.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A ladder-type cable tray includes a cable tray body, which includes two oppositely arranged cable tray side plates. One side of the cable tray side plate has an extension plate at its bottom. Multiple evenly distributed crossbeams are provided between the two extension plates. A support assembly is provided between adjacent crossbeams. The support assembly includes two oppositely arranged expansion joints. An installation plate is rotatably provided on the outer side of the expansion joint. The installation plate has a through hole for fastening bolts to be inserted and then fixed by fastening nuts. Both ends of the expansion joint have movably provided snap-fit ​​plates. A support column is provided on the inner side of one expansion joint. A connecting groove is provided in the support column. A connecting rod with one end connected to the other expansion joint is slidably provided in the connecting groove.

[0007] As a further embodiment of this utility model, the connecting rod is provided with a limiting block, and the inner sidewall of the connecting groove is provided with a limiting groove for the displacement of the limiting block.

[0008] As a further embodiment of this utility model, a fastening plate is provided on the top end face of the extension plate between the two crossarms, and a fastening groove communicating with the fastening hole is provided on the fastening plate.

[0009] As a further embodiment of this utility model, both sides of the crossarm are provided with docking plates, and the docking plates are provided with snap-fit ​​grooves for the snap-fit ​​plates to move. The top end face of the docking plates is provided with guide grooves for the snap-fit ​​plates to be pressed and slid into the snap-fit ​​grooves, and the guide grooves are connected to the snap-fit ​​grooves.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This invention, through the setting of a support component, provides stable support between two adjacent crossarms when flexible wires are laid on the cable tray body. This solves the problem of exposed wires drooping downwards between two adjacent crossarms, ensuring overall neatness and improving the safety and stability of the ladder-type cable tray in long-term use. The support component of this invention can be installed and disassembled according to usage requirements, making it convenient to install and use. At the same time, the support component can be reused. When not in use, the expansion joints and connecting rods on the support component can be retracted, thereby reducing the storage space occupied. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This diagram shows the connection relationship between the extension plate, crossbeam, and support components of this utility model.

[0014] Figure 3 This is a schematic diagram of the structure of the support component of this utility model;

[0015] Figure 4 This is a cross-sectional view of the support column and connecting rod of this utility model;

[0016] In the diagram: 1. Cable tray body; 11. Cable tray side plate; 12. Extension plate; 120. Fastening plate; 121. Fastening groove; 13. Crossbeam; 130. Butt joint plate; 131. Snap-fit ​​groove; 132. Guide groove; 14. Support assembly; 140. Expansion joint; 141. Mounting plate; 142. Fastening hole; 143. Snap-fit ​​plate; 144. Support column; 145. Connecting groove; 146. Connecting rod; 147. Limiting block; 148. Limiting groove; 15. Fastening bolt; 16. Fastening nut. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of the present invention.

[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] Example

[0020] refer to Figures 1-4 A ladder-type cable tray includes a cable tray body 1. The cable tray body 1 includes two oppositely arranged cable tray side plates 11. An extension plate 12 is fixedly connected to the bottom of one side of the cable tray side plate 11. A plurality of evenly distributed crossbeams 13 are fixedly connected between the two extension plates 12. A support assembly 14 is detachably provided between two adjacent crossbeams 13. The support assembly 14 includes two oppositely arranged expansion joints 140. An installation plate 141 is rotatably provided on the outer side of the expansion joint 140. A fastening hole 142 is provided through the installation plate 141 for fastening bolts 15 to be inserted and fixed by fastening nuts 16. Both ends of the expansion joint 140 are movably provided with snap-fit ​​plates 143. A support column 144 is provided on the inner side of one expansion joint 140. A connecting groove 145 is provided in the support column 144. A connecting rod 146, one end of which is connected to the other expansion joint 140, is slidably provided in the connecting groove 145.

[0021] Furthermore, the connecting rod 146 is provided with a limiting block 147, and the inner side wall of the connecting groove 145 is provided with a limiting groove 148 for the limiting block 147 to move. By setting the limiting groove 148 and the limiting block 147, not only can the connecting rod 146 not be separated from the support column 144 and always maintain the connection relationship with the support column 144, but the displacement of the connecting rod 146 can also be limited.

[0022] Furthermore, both sides of the crossarm 13 are provided with docking plates 130. The docking plates 130 are provided with locking grooves 131 for the displacement of locking plates 143. The top end face of the docking plates 130 is provided with guide grooves 132 for the locking plates 143 to be pressed and slid into the locking grooves 131. The guide grooves 132 are connected to the locking grooves 131. Through the setting of locking grooves 131 and locking plates 143, the extension joint 140 after stretching can be limited, so that the support assembly 14 is initially connected to the two adjacent crossarms 13. At the same time, the extension joint 140 does not detach from the connection with the crossarm 13 when it moves on the crossarm 13, and always maintains the connection relationship with the crossarm 13.

[0023] Furthermore, a fastening plate 120 is provided on the top end face of the extension plate 12 between the two crossarms 13. The fastening plate 120 has a fastening groove 121 that communicates with the fastening hole 142. By passing the fastening bolt 15 through the fastening hole 142 and the fastening groove 121 and then screwing it in place with the fastening nut 16, the support assembly 14 is stably installed between the two adjacent crossarms 13, providing stable support for the exposed wires between the two adjacent crossarms 13.

[0024] The working principle of this utility model:

[0025] When laying flexible wires on the cable tray body 1, align the two snap-fit ​​plates 143 at one end of the support assembly 14 with the guide groove 132 on the crossarm 13, then stretch the expansion joint 140 to align the two snap-fit ​​plates 143 at the other end of the support assembly 14 with the guide groove 132 on the adjacent crossarm 13, insert the support assembly 14 downwards so that the snap-fit ​​plates 143 slide into the snap-fit ​​grooves 131, and then stretch the mounting plate 141 toward the fastening plate 120. At the same time as stretching, the connecting rod 146 connects... As the mounting plate moves within the slot 145, the snap-fit ​​plate 143 moves synchronously within the snap-fit ​​slot 131 until the mounting plate 141 is in contact with the fastening plate 120. At this point, the fastening hole 142 on the mounting plate 141 is connected to the fastening slot 121 on the fastening plate 120. After passing the fastening bolt 15 through the fastening hole 142 and the fastening slot 121, it is screwed in and fixed by the fastening nut 16, so that the support assembly 14 is stably installed between two adjacent crossarms 13, providing stable support for the exposed wires between the two adjacent crossarms 13.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A ladder-type bridge comprising a bridge body (1), characterized in that: The cable tray body (1) includes two oppositely arranged cable tray side plates (11). One side of the cable tray side plate (11) has an extension plate (12) at its bottom. A plurality of evenly distributed crossbeams (13) are provided between the two extension plates (12). A support assembly (14) is provided between two adjacent crossbeams (13). The support assembly (14) includes two oppositely arranged telescopic joints (140). An installation plate (141) is rotatably provided on the outside of the telescopic joint (140). A fastening hole (142) is provided through the installation plate (141) for fastening bolts (15) to be inserted and then fixed by fastening nuts (16). Both ends of the telescopic joint (140) are movably provided with snap-fit ​​plates (143). A support column (144) is provided on the inside of one telescopic joint (140). A connecting groove (145) is provided in the support column (144). A connecting rod (146) with one end connected to the other telescopic joint (140) is slidably provided in the connecting groove (145).

2. A ladder-type bridge according to claim 1, characterized in that: The connecting rod (146) is provided with a limiting block (147), and the inner side wall of the connecting groove (145) is provided with a limiting groove (148) for the displacement of the limiting block (147).

3. A ladder-type bridge according to claim 1, characterized in that: A fastening plate (120) is provided on the top end face of the extension plate (12) between the two crossbeams (13), and a fastening groove (121) communicating with the fastening hole (142) is provided on the fastening plate (120).

4. The ladder-type bridge defined in claim 1, wherein: Both sides of the crossarm (13) are provided with docking plates (130). The docking plates (130) are provided with snap-fit ​​grooves (131) for the snap-fit ​​plate (143) to move. The top end face of the docking plates (130) is provided with guide grooves (132) for the snap-fit ​​plate (143) to be pressed and slid into the snap-fit ​​grooves (131). The guide grooves (132) are connected to the snap-fit ​​grooves (131).

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