Bridge support arm suitable for multi-bridge

Abstract

The utility model provides a bridge support arm suitable for multi -bridge, including the bearing plate, the bearing plate top surface fixed installation has the closing plate, and has set up at least three the sliding slot, each the sliding slot in all sliding installations has the sliding block, and is fixed by the limiting bolt, each the sliding block all installs the lifting installation arm, is equipped with a plurality of the connecting hole on the lifting installation arm, the utility model discloses lifting installation arm and the dislocation arrangement of sliding block, form sufficient empty space, reduce the installation maintenance difficulty, T -shaped sliding slot and limiting bolt cooperation, can adjust lifting position flexibly, and adapt to a variety of bridge layout, sliding slot connection is stable and resistant to shearing, and the closing plate strengthens structure and prevents sundries, prolongs the life.

Description

Technical Field

[0001] This utility model belongs to the field of cable tray support technology, and in particular relates to a cable tray support suitable for multiple cable trays. Background Technology

[0002] Cable tray support arms are key components in cable tray systems used to support and secure cable trays. In industrial plants, data centers, and other similar settings, it is often necessary to lay multiple layers or rows of cable trays, which requires the use of multi-layer cable tray support arms capable of supporting multiple cable trays simultaneously.

[0003] While existing traditional multi-cable tray fixing brackets can meet the needs of fixing different cable trays, design flaws make installation difficult due to obstructions above the brackets (which fix the upper cable trays). Specifically, traditional designs typically fix the brackets to supports at a uniform height, or there is vertical overlap between upper and lower brackets. This structure severely obstructs the operator's installation space when installing lower cable trays, making it difficult to use tools like wrenches, tightening bolts, and even hindering cable threading and subsequent maintenance. Furthermore, the fixed position of traditional brackets prevents flexible adjustment based on the actual size or layout of the cable trays, resulting in poor adaptability, reduced construction efficiency, increased installation complexity, and higher labor costs.

[0004] Therefore, it is essential to invent a cable tray support arm suitable for multiple cable trays. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a cable tray support arm suitable for multiple cable trays, including a bearing plate, a sealing plate, a sliding groove, a slider, a limiting bolt, a lifting mounting arm, and connecting holes. The sealing plate is fixedly installed on the upper surface of the bearing plate and has at least three sliding grooves. The slider is slidably installed in each sliding groove and fixed by the limiting bolt. The lifting mounting arm is installed on each slider and has several connecting holes.

[0006] Preferably, the rectangular sealing plate is fixedly installed on the upper surface of the bearing plate by bolts, and the sealing plate closes the opening above the slide groove.

[0007] Preferably, the slide grooves are vertically formed on the support plate, are parallel to each other, and are arranged equidistantly in the transverse direction. The slide grooves are T-shaped. The support plate and the slider are provided with mounting holes that allow the limiting bolts to pass through. The limiting bolts fix the slider in the corresponding slide groove of the support plate.

[0008] Preferably, the slider in each of the slides can slide up and down along a vertical line, and the sliders in adjacent slides are not on the same horizontal line, and their horizontal projection positions on the support plate are staggered.

[0009] Preferably, the lifting mounting arm fixedly installed on the slider has an "L" shaped structure, with several connecting holes through the front end of its horizontal part. The connecting holes at the front end are used to connect with the cable tray using bolts.

[0010] Preferably, the lifting and mounting arms are staggered, and the area above each lifting and mounting arm is a clearance area for cable tray installation.

[0011] Compared with the prior art, the present invention has the following beneficial effects: This invention achieves staggered arrangement of the lifting arms in each layer by setting the sliders in adjacent grooves and their supporting arms to be on different horizontal and vertical lines. This design creates an unobstructed open space above each lifting arm, providing ample operating space for the installation of the cable tray, bolt fixing, and subsequent cable laying and maintenance, greatly reducing installation difficulty and improving construction efficiency.

[0012] This invention employs a T-shaped groove and slider design, secured by limiting bolts, allowing each support arm to be independently and precisely adjusted in vertical position on the support plate according to actual needs. This structure can flexibly adapt to cable trays of different widths and heights, as well as multi-layer cable tray layouts with unequal spacing, greatly improving the versatility and application range of the support arms.

[0013] The T-shaped groove and slider of this invention feature a large contact area and a stable connection, ensuring excellent shear resistance under load. Meanwhile, the sealing plate design not only strengthens the overall structural strength of the load-bearing plate but also effectively prevents dust and debris from falling into the groove, ensuring smooth slider movement and extending service life. Attached Figure Description

[0014] Figure 1 This is an exploded structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the main structure of this utility model.

[0017] In the picture: 1. Support plate; 2. Sealing plate; 3. Slide groove; 4. Sliding block; 5. Restricting bolt; 6. Lifting mounting arm; 7. Connecting hole. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0019] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0020] As attached Figure 1 To be continued Figure 3 As shown: This utility model provides a cable tray support arm suitable for multiple cable trays, including a bearing plate 1, a sealing plate 2, a sliding groove 3, a slider 4, a limiting bolt 5, a lifting mounting arm 6, and connecting holes 7. The sealing plate 2 is fixedly installed on the upper surface of the bearing plate 1, and at least three sliding grooves 3 are provided. The slider 4 is slidably installed in each sliding groove 3 and is fixed by the limiting bolt 5. The lifting mounting arm 6 is installed on each slider 4, and a plurality of connecting holes 7 are provided on the lifting mounting arm 6.

[0021] Furthermore, the support plate 1 is made of galvanized steel. Its upper surface is fixedly connected to the rectangular sealing plate 2 using M8 hexagon socket head cap bolts with flat washers and spring washers. The bolts are evenly spaced 80-100mm along the edge of the sealing plate 2, passing through the pre-set coaxial mounting holes on both the sealing plate 2 and the support plate 1, and then tightened with nuts to ensure a secure connection. The sealing plate 2 is made of 1.2mm thick thin steel plate of the same material, with its length and width matching the corresponding dimensions of the support plate 1. Its lower surface fits tightly against the upper surface of the support plate 1, completely sealing the upper opening of the slide groove 3, effectively preventing dust, debris, and other foreign objects from entering the slide groove and affecting the operation of the sliding components.

[0022] Furthermore, the slide groove 3 is vertically milled into the upper surface area of ​​the support plate 1 using precision milling technology. The groove body has a standard T-shaped structure, and multiple sets of slide grooves 3 maintain a strict parallel relationship, with a uniform lateral spacing of 150mm, forming a neat installation array. The slider 4 is made of wear-resistant nylon material, and its external dimensions form an H7 / g6 clearance fit with the T-shaped slide groove 3 to ensure smooth sliding without significant wobbling. The support plate 1 has mounting holes along the length of the slide groove 3, and the corresponding positions of the slider 4 have through holes. The limiting bolt 5 is an external hexagonal bolt, which passes through the holes of both and is locked by threaded connection, which can firmly fix the slider 4 at any height position of the support plate 1 corresponding to the slide groove 3.

[0023] Furthermore, the slider 4 within each groove 3, relying on its precise fit with the T-slot, can slide up and down along the axial direction (vertical line) of the groove 3. The sliding stroke is limited by the limiting blocks welded to both ends of the groove 3, preventing the slider 4 from detaching from the groove body. The clearance between the slider 4 and the groove 3 is controlled between 0.5-1mm, ensuring both sliding flexibility and structural stability. The sliders 4 in adjacent grooves 3 are arranged in a strictly staggered manner.

[0024] Furthermore, the outer wall of the slider 4 is fixedly mounted with the support mounting arm 6 using a full welding process. This support mounting arm 6 is made of high-strength aluminum alloy and has an overall "L"-shaped structure—the vertical part is completely flush with the connecting surface of the slider 4; the horizontal part's length is set to 200-300mm depending on the cable tray span, and 3-5 elongated connecting holes 7 are drilled through the front end along its length. The hole spacing of the connecting holes 7 is 30mm, which can accommodate the installation requirements of cable trays of different widths. During installation, M8 countersunk bolts are passed through the connecting holes 7 and tightened to the mounting lugs at the bottom of the cable tray. The elongated hole structure allows for ±10mm of positional adjustment, improving installation tolerance.

[0025] Furthermore, the lifting and mounting arms 6 are staggered in both the transverse and longitudinal directions along the bearing plate 1. The arrangement of these arms creates an independent clearance area above each lifting and mounting arm 6. The clearance area is at least 120mm high and at least 50mm wide than the cable tray width. This provides ample operating space for the hoisting and alignment of the cable tray, avoids structural interference between adjacent cable trays after installation, and meets the requirements for convenient disassembly during later maintenance.

[0026] The working principle is as follows: First, the bearing plate 1 is fixedly installed on the preset installation base, serving as the bearing base of the entire cable tray bracket, providing stable installation support for subsequent components.

[0027] After the support plate 1 is installed, the sealing plate 2 above it has sealed the upper opening of the slide groove 3 through the corresponding connection method, which can prevent foreign objects from entering the slide groove 3 during subsequent use and ensure that the sliding performance of the slider 4 is not affected.

[0028] According to the number of cable trays to be installed and the installation location requirements, the sliders 4 are respectively installed into the corresponding grooves 3 on the support plate 1. The grooves 3 provide directional sliding tracks for the sliders 4, so that the sliders 4 can flexibly adjust their height along the vertical line of the grooves 3.

[0029] After the slider 4 is adjusted to the target height suitable for the cable tray installation, the limiting bolt 5 is passed through the corresponding hole on the bearing plate 1 and the slider 4 and locked. The locking action of the limiting bolt 5 fixes the slider 4 in the designated position in the slide groove 3, preventing the slider 4 from shifting when bearing the weight of the cable tray.

[0030] After the slider 4 is fixed, the outer support mounting arm 6 is positioned at a preset height along with the slider 4. Utilizing the "L"-shaped structure of the support mounting arm 6, its horizontal part can directly support the bottom of the cable tray, providing a stable support carrier for the cable tray.

[0031] The cable tray is placed on the horizontal part of the lifting and mounting arm 6, and the cable tray is fastened to the lifting and mounting arm 6 through the connecting holes 7 and bolts, thus achieving the fixed installation of the cable tray. Because the sliders 4 in the adjacent slide grooves 3 are staggered, and the lifting and mounting arms 6 are staggered in both the horizontal and vertical directions, an independent clearance area is formed above each lifting and mounting arm 6. This avoids structural interference when installing adjacent cable trays and provides sufficient operating space for the hoisting, alignment, and subsequent maintenance of the cable trays, ultimately achieving the orderly and stable installation of multiple cable trays.

[0032] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A cable tray support arm suitable for multiple cable trays, characterized in that, The system includes a support plate (1), a sealing plate (2), a groove (3), a slider (4), a limiting bolt (5), a lifting mounting arm (6), and connecting holes (7). The sealing plate (2) is fixedly installed on the upper surface of the support plate (1), and at least three grooves (3) are provided. The slider (4) is slidably installed in each groove (3) and fixed by the limiting bolt (5). The lifting mounting arm (6) is installed on each slider (4), and several connecting holes (7) are provided on the lifting mounting arm (6).

2. A cable tray support arm suitable for multiple cable trays as described in claim 1, characterized in that: The rectangular sealing plate (2) is fixedly installed on the upper surface of the bearing plate (1) by bolts, and the sealing plate (2) closes the opening above the groove (3).

3. A cable tray support arm suitable for multiple cable trays as described in claim 2, characterized in that: The slide groove (3) is vertically opened on the bearing plate (1), and they are parallel to each other and are arranged at equal intervals in the transverse direction. The slide groove (3) is a T-shaped slide groove structure. The bearing plate (1) and the slider (4) are provided with mounting holes that allow the limiting bolt (5) to pass through. The limiting bolt (5) fixes the slider (4) in the corresponding slide groove (3) of the bearing plate (1).

4. A cable tray support arm suitable for multiple cable trays as described in claim 3, characterized in that: Each slider (4) in each groove (3) can slide up and down along the vertical line. The sliders (4) in adjacent grooves (3) are not on the same horizontal line, and their horizontal projection positions on the support plate (1) are staggered.

5. A cable tray support arm suitable for multiple cable trays as described in claim 4, characterized in that: The lifting mounting arm (6) fixedly installed on the slider (4) has an "L" shaped structure, and several connecting holes (7) are opened through the front end of its horizontal part. The connecting holes (7) at the front end are used to connect with the cable tray with bolts.

6. A cable tray support arm suitable for multiple cable trays as described in claim 5, characterized in that: The lifting and mounting arms (6) are staggered relative to each other, and the area above each lifting and mounting arm (6) is a clearance area for the cable tray installation.

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