Bridge cross arm

Abstract

The utility model provides a bridge cross arm which comprises an inner cylinder and an outer cylinder sleeved outside the inner cylinder, and the inner cylinder moves to stretch out and retract along the outer cylinder. The side faces of the front side and the rear side of the outer cylinder are each provided with a row of multiple positioning holes, the side faces of the front side and the rear side of the left end and the right end of the inner cylinder are correspondingly provided with round head buckles, and the round head buckles are clamped in one of the multiple positioning holes in the row so that the inner cylinder can be fixed to different positions in the outer cylinder to adjust the length of the cross arm. The left end and the right end of the outer cylinder are respectively provided with an outer cylinder U-shaped groove, and the left end and the right end of the inner cylinder are respectively provided with an inner cylinder U-shaped groove. The inner cylinder of the bridge cross arm can move to stretch out and retract along the outer cylinder sleeved outside the inner cylinder, and after the round head buckle of the inner cylinder is clamped into the positioning hole of the outer cylinder, the inner cylinder is fixed, so that the length of the bridge cross arm is changed to adapt to bridges of different specifications; the U-shaped grooves are formed in the two ends of the inner cylinder and the two ends of the outer cylinder respectively, pull rods used for installing the bridge cross arm can be directly clamped into the U-shaped grooves, and the bridge cross arm can be additionally installed without disassembling other bridge cross arms.

Description

Technical Field

[0001] This utility model relates to a support device, and more particularly to a cable tray crossarm. Background Technology

[0002] In communication equipment rooms, computer rooms, and similar settings, cables are placed on cable trays. These trays, often quite long, are prone to sagging and deformation, requiring the installation of crossarms underneath to distribute the load. Traditional crossarms have a fixed length, necessitating customization or on-site cutting based on the tray width at different locations. This not only increases construction difficulty and time costs but can also lead to reduced crossarm strength or inaccurate dimensions due to improper cutting, affecting overall installation quality and stability. To increase the number of cable trays to support more cables, existing crossarms must be removed and reinstalled, a cumbersome process. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a cable tray crossarm that is easy to install and can adapt to different specifications of cable trays.

[0004] To solve the above-mentioned technical problems, this utility model provides a cable tray crossarm, including an inner cylinder and an outer cylinder sleeved outside the inner cylinder. The inner cylinder extends and retracts along the outer cylinder. Multiple positioning holes are opened on the front and rear sides of the outer cylinder. Round-headed buckles are provided on the front and rear sides of the left and right ends of the inner cylinder respectively. The round-headed buckles can be selected from one of the multiple positioning holes to fix the inner cylinder in different positions inside the outer cylinder to adjust the length of the crossarm. U-shaped grooves are opened on the left and right ends of the outer cylinder and U-shaped grooves are opened on the left and right ends of the inner cylinder.

[0005] Furthermore, the round-headed buckle can be pressed into the inner cylinder; the inner cylinder is equipped with a reset element that applies force to the round-headed buckle pressed into the inner cylinder to reset it.

[0006] Furthermore, the reset element is specifically a reset spring.

[0007] Furthermore, the distance between the left and right round head buckles of the inner cylinder is equal to the distance between the first positioning hole from the left and the first positioning hole from the right of the outer cylinder.

[0008] Furthermore, a tie rod is provided, which is respectively inserted into the U-shaped grooves at the left and right ends of the cable tray crossarm. The tie rod is equipped with a positioning nut, which is used to lock the U-shaped groove to realize the installation of the cable tray crossarm.

[0009] The cable tray crossarm provided by this utility model has an inner cylinder that can extend and retract along the outer cylinder that is sleeved outside the inner cylinder. After the round head buckle of the inner cylinder is inserted into the positioning hole of the outer cylinder, the inner cylinder is fixed, thereby changing the length of the cable tray crossarm to adapt to different specifications of cable trays. The inner cylinder and the outer cylinder are respectively opened at both ends of their U-shaped grooves, which can be directly inserted into the tie rods used to install the cable tray crossarm, so that the cable tray crossarm can be added without disassembling other cable tray crossarms. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of the cable tray crossarm;

[0011] Figure 2 This is an exploded structural diagram of the cable tray crossarm;

[0012] Figure 3 This is a schematic diagram of the structure after the crossarm of the cable tray has been extended;

[0013] Figure 4 This is a schematic diagram of the installation of a single cable tray crossarm;

[0014] Figure 5 This is an exploded view of the installation structure of a single cable tray crossarm;

[0015] Figure 6 This is a schematic diagram of a set of cable tray crossarms and the cable trays above them;

[0016] Figure 7 It is a schematic diagram of multiple sets of vertically arranged cable tray crossarms and the cable trays on them.

[0017] Reference numerals: 1. Cable tray crossarm; 11. Outer cylinder; 111. Positioning hole; 112. Outer cylinder U-shaped groove; 113. Inner cavity; 12. Inner cylinder; 121. Round head buckle; 122. Inner cylinder U-shaped groove; 2. Tie rod; 21. Positioning nut; 3. Cable tray. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments.

[0019] Cable tray crossarm 1 Figure 1 As shown, it includes an outer cylinder 11 and an inner cylinder 12, as... Figure 2As shown, the outer cylinder 11 has an inner cavity 113, and the inner cylinder 12 is inserted into the inner cavity 113 for installation. The inner cylinder 12 has a round-headed latch 121 protruding from its left and right ends on its front and rear sides. Correspondingly, the outer cylinder 11 has a row of nine positioning holes 111 on its front and rear sides for the round-headed latches 121 to be inserted into. The round-headed latches 121 can be pressed into the inner cylinder 12. A return spring (not shown) inside the inner cylinder 12 applies force to the pressed-in round-headed latches 121 to reset them. During installation, the round-headed latches 121 are pressed into the inner cylinder 12, and the inner cylinder 12 is inserted into the inner cavity 113 of the outer cylinder 11 from right to left until the round-headed latch 121 at its left end aligns with the first positioning hole 111 from the right on the outer cylinder 11. The round-headed latch 121 will then be pushed back into the positioning hole 111 by the return spring inside the inner cylinder 12. Figure 3 As shown, the cable tray crossarm 1 is at its longest length in this state. To shorten the length of the cable tray crossarm, press the round-headed buckle 121 into the inner cylinder 12, and continue the operation to insert the inner cylinder 12 further to the left until the round-headed buckle 121 aligns with the second positioning hole 111 from the right on the outer cylinder 11. The round-headed buckle 121 will then reset and engage with the positioning hole 111, thus slightly shortening the length of the cable tray crossarm 1. To further shorten the length of the cable tray crossarm, repeat the above steps until the desired length is obtained. Repeat the above operation until the round-headed buckle 121 at the left end of the inner cylinder 12 engages with the first positioning hole 111 from the left on the outer cylinder 11, and the round-headed buckle 121 at the right end of the inner cylinder 12 engages with the first positioning hole 111 from the right on the outer cylinder 11. Figure 1 As shown, the length of the cable tray crossarm 1 is the shortest in this state.

[0020] like Figure 5 As shown, to install the cable tray crossarm 1 onto the tie rod 2, two tie rods 2 are provided, one on the left and one on the right. Correspondingly, the outer cylinder 11 has an outer cylinder U-shaped groove 112 at each of its left and right ends, and the inner cylinder 12 also has an inner cylinder U-shaped groove 122 at each of its ends. The two tie rods 2 are located at the left and right ends of the cable tray crossarm 1, respectively, and positioning nuts 21 are pre-installed at the positions where the cable tray crossarm 1 is installed. The left tie rod 2 is inserted into the outer cylinder U-shaped groove 112 on the left side of the outer cylinder 11, and the right tie rod 2 is inserted into the inner cylinder U-shaped groove 122 on the right side of the inner cylinder 12; the tie rod 2 is provided with a positioning nut 21, which holds the U-shaped groove in place. Figure 4 As shown, the cable tray crossarms are erected in the air. Multiple cable tray crossarms 1 are erected in a row as described above, such as... Figure 6 As shown, cable tray 3 is placed on top of multiple cable tray crossarms 1 in this column to support cables. If necessary, in this... Figure 6The cable tray 3 shown is added above the existing cable tray crossarm 1 without dismantling it. Simply add the new cable tray crossarm 1 above the existing one and insert the tie rods 2 into the new crossarm 1. Each tie rod 2 has multiple positioning nuts 21, which secure the U-shaped groove. After the new cable tray crossarm 1 is installed, it will look like... Figure 7 As shown, cable tray 3 is placed above cable tray crossarm 1 to support the cables.

[0021] The above are merely embodiments of the present invention and are not intended to limit the scope of patent protection. Any non-substantial changes or substitutions made by those skilled in the art based on the present invention will still fall within the scope of patent protection.

Claims

1. A cable tray crossarm, characterized in that, Includes an inner cylinder (12) and an outer cylinder (11) fitted outside the inner cylinder (12). The inner cylinder (12) moves along the outer cylinder (11) to extend and retract. The outer cylinder (11) has a row of multiple positioning holes (111) on both the front and rear sides. The inner cylinder (12) has round-headed buckles (121) on both the front and rear sides at the left and right ends respectively. The round-headed buckles (121) can be selected from the row of multiple positioning holes (111) to lock the inner cylinder (12) in different positions inside the outer cylinder (11) to adjust the length of the crossbeam. The outer cylinder (11) has an outer cylinder U-shaped groove (112) on both the left and right ends, and the inner cylinder (12) has an inner cylinder U-shaped groove (122) on both the left and right ends.

2. The cable tray crossarm according to claim 1, characterized in that, The round-head buckle (121) can be pressed into the inner cylinder (12); the inner cylinder (12) is provided with a reset member to apply force to the round-head buckle (121) that has been pressed into the inner cylinder (12) to reset it.

3. The cable tray crossarm according to claim 2, characterized in that, The reset component is specifically a reset spring.

4. The cable tray crossarm according to claim 1, characterized in that, The distance from the left end round head buckle (121) to the right end round head buckle (121) of the inner cylinder (12) is equal to the distance from the first positioning hole (111) from the left to the first positioning hole (111) from the right of the outer cylinder (11).

5. The cable tray crossarm according to claim 1, characterized in that, A tie rod (2) is provided, which is respectively inserted into the U-shaped grooves at the left and right ends of the cable tray crossarm (1). A positioning nut (21) is provided on the tie rod (2), and the cable tray crossarm (1) is installed by the positioning nut (21) locking the U-shaped groove.

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