Bridge support arm

Abstract

The utility model provides a bridge bracket arm which comprises a vertical fixing rod, a bearing arm and a supporting rod which transversely extend out of the fixing rod, the supporting rod supports the bearing arm below the bearing arm, the bearing arm comprises a bearing arm sleeve and a bearing arm telescopic joint, the rear end of the bearing arm sleeve is fixedly installed on the fixing rod, and the rear end of the bearing arm sleeve is fixedly installed on the fixing rod. The bearing arm telescopic joint can stretch out and draw back from the front end of the bearing arm sleeve to adjust the length of the bearing arm. The supporting rod comprises a supporting rod sleeve and a supporting rod telescopic joint, the rear end of the supporting rod sleeve is hinged to the fixing rod, and the front end of the bearing arm telescopic joint is hinged to the front end of the supporting rod telescopic joint. The supporting rod telescopic joint can stretch out and retract from the front end of the supporting rod sleeve to adjust the length of the supporting rod. The bearing arm telescopic joint can extend out of the front end of the bearing arm sleeve, so that the length of the bearing arm is changed to adapt to bridges with different widths; and the supporting rod below the bearing arm correspondingly extends or shortens along with the extension or shortening of the bearing arm, so as to support the bearing arm above the supporting rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to a supporting device, especially a bridge support arm. BACKGROUND

[0002] In the communication machine room, computer room and other scenes, the cable is placed on the cable bridge, and the bridge is often prone to sagging and deformation due to its length, and a bridge support arm needs to be installed below to disperse the load on the bridge. The number of cables on the bridge may change, and the width of the bridge needed increases accordingly as the number of cables increases, so longer bridge support arms need to be used or new bridge support arms need to be added, which is cumbersome to operate. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a bridge support arm that can adapt to bridges of different widths and provide sufficient support to the bridge.

[0004] To solve the above technical problem, the utility model provides a bridge support arm, which comprises a vertical fixed rod, a supporting arm and a support rod horizontally extending from the fixed rod, the support rod supports the supporting arm below the supporting arm, the supporting arm comprises a supporting arm sleeve and a supporting arm expansion joint, wherein the rear end of the supporting arm sleeve is fixedly installed on the fixed rod, and the supporting arm expansion joint can be extended from and retracted into the front end of the supporting arm sleeve to adjust the length of the supporting arm; the support rod comprises a support rod sleeve and a support rod expansion joint, wherein the rear end of the support rod sleeve is hingedly connected to the fixed rod, and the front end of the supporting arm expansion joint is hingedly connected to the front end of the support rod expansion joint; the support rod expansion joint can be extended from and retracted into the front end of the support rod sleeve to adjust the length of the support rod.

[0005] Further, the front end of the support rod sleeve is provided with a fastening hole and a corresponding fastening bolt, and the fastening bolt is screwed into the fastening hole to maintain the length of the support rod unchanged.

[0006] Further, a plurality of positioning holes are formed in the supporting arm sleeve, and the supporting arm expansion joint is provided with a round head buckle, which is selectively clamped into the positioning holes to fix the supporting arm expansion joint at different positions in the supporting arm sleeve.

[0007] Further, the round head buckle can be pressed into the supporting arm expansion joint; a reset spring is arranged in the supporting arm expansion joint to apply force to the round head buckle pressed into the supporting arm expansion joint to reset the round head buckle to clamp into the positioning hole, thereby fixing the supporting arm expansion joint at different positions in the supporting arm sleeve.

[0008] Further, the support rod sleeve is provided with a strip-shaped limiting through hole in the side surface along the expansion direction of the support rod expansion joint, and the support rod expansion joint is provided with a limiting piece, and the support rod expansion joint expands and contracts in the support rod sleeve, and the limiting piece moves in the limiting through hole to limit the expansion of the support rod.

[0009] Furthermore, the front end of the support arm telescopic joint extends upward with a stop bar to block the cable tray placed on the support arm.

[0010] The cable tray support arm provided by this utility model has a support arm telescopic joint that can extend from the front end of the support arm sleeve, so that the length of the support arm can be changed to adapt to cable trays of different widths; the support rod below the support arm extends or shortens accordingly as the support arm extends or shortens, providing support for the support arm above it. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the cable tray support arm;

[0012] Figure 2 yes Figure 1 The rear view of the cable tray support arm shown.

[0013] Reference numerals in the attached drawings: 1. Support arm; 11. Support arm sleeve; 111. Positioning hole; 12. Support arm telescopic joint; 121. Round head buckle; 2. Support rod; 21. Support rod sleeve; 211. Limiting through hole; 212. Fastening hole; 213. Fastening bolt; 22. Support rod telescopic joint; 221. Limiting component; 3. Stop bar; 4. Positioning nut; 5. Fixing rod. Detailed Implementation

[0014] The present invention will be further described in detail below with reference to specific embodiments.

[0015] cable tray support arm Figure 1 As shown, the cable tray includes an upright fixed rod 5, on which a support arm 1 extends forward to support the cable tray. A fixing nut 4 is fitted on the fixed rod 5 to support the rear end of the support arm 1. The cable tray is supported on the support arm 1 to carry the cables. A support rod 2 is installed below the support arm 1, with its rear end hinged to the fixed rod 5 and its front end hinged to the front end of the support arm 1, providing support for the support arm 1.

[0016] To accommodate cable trays of varying widths, the support arm 1 is designed with a telescopic structure, specifically including a support arm sleeve 11 and a support arm telescopic joint 12 extending from the front end of the support arm sleeve 11. The rear end of the support arm sleeve 11 serves as the rear end of the support arm 1 and is fixed to the fixing rod 5; the support arm telescopic joint 12 serves as the front end of the support arm and is hinged to the front end of the support rod 2. The support arm sleeve 11... Figure 1 , 2As shown, five positioning holes 111 are opened on each of the left and right sides. Correspondingly, round-headed latches 121 are provided on each of the left and right sides of the support arm telescopic joint 12. The round-headed latches 121 can be pressed into the support arm telescopic joint 12. A return spring is provided inside the support arm telescopic joint 12 to reset the round-headed latches 121. To extend the support arm telescopic joint 12 further from the front end of the support arm sleeve 11, press the round-headed latches 121 into the support arm telescopic joint 12 and pull the support arm telescopic joint 12 forward until the round-headed latches 121 align with the next positioning hole 111 in front of them. The round-headed latches 121 will be pushed back by the return spring inside the support arm telescopic joint 12 and protrude into the positioning hole 111, thus slightly extending the support arm 1. To extend the support arm telescopic joint 12 further from the front end of the support arm sleeve 11, press the round-headed latches 121 into the support arm telescopic joint 12 and pull the support arm telescopic joint 12 forward until the round-headed latches 121 align with the next positioning hole 111 in front of them. The round-headed latches 121 will then be pushed back into the positioning hole 111 by the return spring inside the support arm telescopic joint 12, and the support arm 1 will extend slightly. Slightly retract the front end of the sleeve 11, press the round head buckle 121 into the support arm telescopic joint 12, and push the support arm telescopic joint 12 backward until the round head buckle 121 is aligned with the next positioning hole 111 behind it. The round head buckle 121 will then reset and lock into the positioning hole 111, and the support arm 1 will be slightly shortened. If it is necessary to further lengthen or shorten the support arm 1, repeat the above steps of lengthening or shortening the support arm 1 until the required length can be obtained to accommodate cable trays of different widths.

[0017] The support rod 2 includes a support rod sleeve 21 and a support rod telescopic joint 22 that extends from the front end of the support rod sleeve 21. The rear end of the support rod sleeve 21 serves as the rear end of the support rod 2 and is fixed to the fixed rod 5. Figure 1 As shown, the support rod sleeve 21 has a strip-shaped limiting through hole 211 on its right side along the telescopic direction of the support rod 2. The support rod telescopic joint 22 is correspondingly provided with a limiting element 221. When the support rod telescopic joint 22 telescopics within the support rod sleeve 21, the limiting element 221 moves within the limiting through hole 211, limiting the telescopic movement of the support rod 2. The front end of the support rod telescopic joint 22 serves as the front end of the support rod 2, hinged to the front end of the support arm telescopic joint 12. The support rod telescopic joint 22 extends or shortens with the change in length of the support arm 1. To ensure that the support rod 2 can continue to support the support arm 1 after telescopic movement, the support rod 2 is provided with a support rod fixing structure. Specifically, the support rod sleeve 21 has two fastening holes 212 at its front end and correspondingly two fastening bolts 213. Figure 1 In the middle, a fastening bolt 213 has been screwed into one of the fastening holes 212. After the support rod 2 extends and retracts accordingly with the extension and retraction of the support arm 1, the fastening bolt 213 is screwed into the fastening hole 212 to keep the length of the support rod 2 unchanged.

[0018] like Figure 1 As shown, the front end of the support arm telescopic joint 12 extends upward with a baffle 3, which blocks the cable tray placed on the support arm 1 to prevent the cable tray from falling.

[0019] 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 support arm, comprising an upright fixed rod (5), a support arm (1) and a support rod (2) extending laterally from the fixed rod (5), the support rod (2) supporting the support arm (1) below the support arm (1), characterized in that: The support arm (1) includes a support arm sleeve (11) and a support arm telescopic joint (12). The rear end of the support arm sleeve (11) is fixedly installed on the fixed rod (5), and the support arm telescopic joint (12) can extend and retract from the front end of the support arm sleeve (11) to adjust the length of the support arm (1). The support rod (2) includes a support rod sleeve (21) and a support rod telescopic joint (22). The rear end of the support rod sleeve (21) is hinged to the fixed rod (5), and the front end of the support arm telescopic joint (12) is hinged to the front end of the support rod telescopic joint (22). The support rod telescopic joint (22) can extend and retract from the front end of the support rod sleeve (21) to adjust the length of the support rod (2).

2. The cable tray support arm according to claim 1, characterized in that, The front end of the support rod sleeve (21) has a fastening hole (212) and a corresponding fastening bolt (213). The fastening bolt (213) is screwed into the fastening hole (212) to maintain the length of the support rod 2 unchanged.

3. The cable tray support arm according to claim 1, characterized in that, The support arm sleeve (11) has multiple positioning holes (111), and the support arm telescopic joint (12) is correspondingly provided with round head buckles (121). The round head buckles (121) can be selected to be inserted into one of the multiple positioning holes (111) to fix the support arm telescopic joint (12) in different positions inside the support arm sleeve (11).

4. The cable tray support arm according to claim 3, characterized in that, The round-headed buckle (121) can be pressed into the support arm telescopic joint (12); the support arm telescopic joint (12) is provided with a return spring that applies force to the round-headed buckle (121) pressed into the support arm telescopic joint (12) so that it resets and snaps into the positioning hole (111), thereby fixing the support arm telescopic joint (12) at different positions in the support arm sleeve (11).

5. The cable tray support arm according to claim 1, characterized in that, The support rod sleeve (21) has a strip-shaped limiting through hole (211) on its side along the extension and retraction direction of the support rod (2). The support rod telescopic joint (22) is correspondingly provided with a limiting member (221). When the support rod telescopic joint (22) extends and retracts inside the support rod sleeve (21), the limiting member (221) moves within the limiting through hole (211) to limit the extension and retraction of the support rod (2).

6. The cable tray support arm according to claim 1, characterized in that, The front end of the support arm telescopic joint (12) extends upward with a baffle (3) to block the cable tray placed on the support arm (1).

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