Cross rail of step type bridge frame

Abstract

The utility model provides a step type bridge crosspiece, which comprises a stop lever, the bottom of the stop lever is provided with two support rods, the two support rods are respectively connected with the two ends of the bottom of the stop lever in a sliding manner, the two support rods are collinear and parallel to the stop lever, the departing ends of the two support rods are fixedly connected with clamping plates on one side, and the two ends of the stop lever are respectively provided with a clamping plate. One side of the clamping plate is fixedly connected with an inserting shaft opposite to the stop rod, and a positioning rod is detachably connected between the two supporting rods. According to the crosspiece capable of being rapidly clamped and fixed to the bridge side wall, the supporting rods are connected to the two ends of the bottom of the stop rod in the sliding mode, one end of each supporting rod is fixedly connected with the corresponding clamping plate opposite to the end of the stop rod, and when the supporting rods below the stop rod are controlled to move oppositely, the clamping plates can move towards the stop rod, and then the external bridge side wall can be clamped. And the assembling and disassembling efficiency of the whole bridge is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable tray assembly, and specifically relates to a cross bar of a ladder-type tray. Background Art

[0002] Cable trays are widely used in cable laying projects. After the installed cable trays reach the service life or are insufficient to meet the function of protecting cables, they need to be replaced. The main difficulty in current engineering construction is that the cables have been laid, and it is impossible to separate the tray from the cables and lay a new tray separately; or the power supply is cut off throughout the line, the cables are lifted separately, and the internal tray is removed for replacement, which is time-consuming and laborious, and the cost is too high. Currently, this situation is difficult to meet the requirements in engineering.

[0003] The utility model with the publication number CN213521127U proposes a cable tray that is convenient for replacement. It adopts on-site split assembly, and can be adjusted to various specifications and sizes according to the actual situation on site. Only by using a special device to lift the original tray by a certain space and insert the cross bar, and assembling with special positioning connectors, the operation is convenient, the positioning is accurate, and it is efficient and labor-saving; the cable tray includes tray side bars and cross bars, the tray side bars and cross bars can be disassembled, the cross bars are vertically inserted between two symmetrically arranged tray side bars, and the tray side bars and cross bars are fixed by positioning connectors.

[0004] However, the cross bars in the above-mentioned prior art still have the following deficiencies when in use: 1. When the cross bars are connected to the two tray side bars through connectors, it is necessary to align and install the connectors and the cross bars one by one, and one cross bar corresponds to two connectors. The connectors and the cross bars are independent structures. Since there are a large number of cross bars on the tray, the structure of aligning and fastening the tray side bars with such cross bars and connectors greatly reduces the assembly efficiency of the tray, and it is more laborious during assembly; 2. When the tray connects the two tray side bars through the cross bars and connectors, it is necessary to increase the distance between the two tray side bars, which easily causes the problem that the already connected cross bars are disengaged, and there is a defect of great assembly difficulty.

[0005] Therefore, the utility model provides a cross bar of a ladder-type tray. Content of the Utility Model

[0006] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a cross bar of a ladder-type tray to solve the problems raised in the above background art. The utility model has clamping plates at both ends of the cross bar. When the two clamping plates are clamped towards each other, the two tray side bars can be firmly connected, greatly improving the assembly and disassembly efficiency of the tray. Moreover, when the two tray side bars are assembled or disassembled, the adjacent cross bars do not affect or interfere with each other, reducing the assembly and disassembly difficulty of the tray.

[0007] To achieve the above object, the present utility model is realized through the following technical solutions: A crossbar of a stepped bridge, including a blocking rod, two supporting rods are provided at the bottom of the blocking rod, and the two supporting rods are respectively slidably connected to the positions at both ends of the bottom of the blocking rod. The two supporting rods are collinear and parallel to the blocking rod. Clamping plates are fixedly connected to the departing ends of the two supporting rods. A plug shaft opposite to the blocking rod is fixedly connected to one side of the clamping plate. A positioning rod is detachably connected between the two supporting rods.

[0008] Further, the cross-section of the supporting rod is square, and positioning blocks are welded to the bottom of the blocking rod near both ends. A guiding channel sleeved on the supporting rod is penetrated and opened on one side of the positioning block.

[0009] Further, limiting holes adapted to the plug shaft are opened at both ends of the blocking rod.

[0010] Further, a sealing gasket is adhesively bonded to the side of the clamping plate facing the blocking rod.

[0011] Further, positioning holes are opened on the upper end surfaces of the two supporting rods near the adjacent ends. Positioning shafts are welded to the bottom of the positioning rod near both ends, and the positioning shafts are inserted and connected to the positioning holes.

[0012] Further, both the positioning shaft and the positioning hole are of a conical structure, and a pressing bolt is screwed through the middle of the positioning rod.

[0013] Further, a handle rod is welded to the end of the pressing bolt departing from the blocking rod.

[0014] The beneficial effects of the present utility model are as follows:

[0015] In the present utility model, the supporting rods are slidably connected to both ends of the bottom of the blocking rod, and a clamping plate opposite to the end of the blocking rod is fixedly connected to one end of the supporting rod. When controlling the opposite movement of the supporting rods below the blocking rod, the clamping plate will move towards the blocking rod, and thus can clamp the side of the external bridge. This kind of crossbar that can be quickly clamped and fixed to the side of the bridge greatly improves the efficiency of the assembly and disassembly of the entire bridge.

[0016] In the present utility model, by providing a positioning rod for locking the supporting rod at the bottom of the blocking rod, the positioning rod has the function of simultaneously locking the supporting rods connected to the clamping plate, further improving the efficiency of the tight assembly of the bridge through this crossbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic exploded view of the structure of a crossbar of a stepped bridge of the present utility model;

[0018] Figure 2 is Figure 1 a schematic view of the bottom structure;

[0019] Figure 3 It is a schematic diagram of the structure of a ladder-type bridge after the crosspiece is assembled according to the utility model;

[0020] Figure 4 It is a cross-sectional view of the connection between the crosspiece of a ladder-type bridge and the side bars of the bridge according to the utility model.

[0021] In the figure: 1, stop rod; 11, positioning block; 111, guide channel; 12, limit hole; 2, support rod; 21, positioning hole; 3, clamping plate; 4, plug-in shaft; 5, positioning rod; 51, positioning shaft; 6, tightening bolt; 61, handlebar; 7, sealing pad. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] See also Figures 1 to 4 The utility model provides a technical solution: a horizontal bar of a ladder bridge, including a stopper 1, two supporting rods 2 are arranged at the bottom of the stopper 1, and the two supporting rods 2 are respectively connected to the positions at the two ends of the bottom of the stopper 1 by sliding, the two supporting rods 2 are collinear and parallel to the stopper 1, and the two supporting rods 2 are fixedly connected to the opposite ends of the two supporting rods 2 with a clamping plate 3 on one side, and one side of the clamping plate 3 is fixedly connected with a plug-in shaft 4 opposite to the stopper 1, and the function of the plug-in shaft 4 is to be plugged and matched with the hole on the bridge side bar, and usually a row of connecting holes close to the bottom is opened on one side of a bridge side bar, and the connecting hole can limit the distance between adjacent horizontal bars, and in this technical solution, it is the distance between adjacent stoppers 1, and a positioning rod 5 is detachably connected between the two supporting rods 2, and the function of the positioning rod 5 is to lock the stopper 1 and the two supporting rods 2 thereon, and when locked, the clamping plate 3 is in a state of clamping the bridge side bar. Simply put, the two bridge side bars form a complete bridge through a large number of supporting rods 2 and the clamping plates 3 at both ends thereof.

[0024] In this embodiment, the cross-section of the support rod 2 is square, and the bottom of the baffle rod 1 is welded with positioning blocks 11 near both ends. A guide channel 111 is penetrated on one side of the positioning block 11 and is sleeved on the support rod 2. The support rod 2 can slide laterally along the guide channel 111, and the two support rods 2 can directly clamp the bridge frame side bonds through the clamping plates 3 when they move in opposite directions. Compared with the prior art, this arrangement does not require the alignment of the clamping plates 3 and the baffle rod 1. It only requires the alignment of the plug-in shaft 4 and the connecting holes on the bridge frame side bonds, and then the opposite movement of the two clamping plates 3 can be controlled to clamp the two bridge frame side bonds, which greatly improves the efficiency of bridge frame assembly and reduces the difficulty of bridge frame assembly. When disassembly is required, the two clamping plates 3 can be controlled to move in the opposite direction.

[0025] Furthermore, the upper end surfaces of the two support rods 2 are provided with positioning holes 21 close to the adjacent ends, and the bottom of the positioning rod 5 is welded with positioning shafts 51 close to the two ends. The positioning shafts 51 and the positioning holes 21 are plugged and connected. When the two positioning shafts 51 on the positioning rod 5 are inserted into the positioning holes 21 on the two support rods 2, the clamping plates 3 on the two support rods 2 are in a state of clamping the side of the bridge frame with the blocking rod 1. When the bridge frame needs to be disassembled, the positioning plates 5 are moved upward to disengage the positioning shafts 51 from the positioning holes 21. At this time, the two support rods 2 are in a state of not being restricted in the lateral direction, and the bridge frame can be easily disassembled. Compared with the prior art, the disassembly has the advantage of being more labor-saving and convenient.

[0026] Among them, the positioning shaft 51 and the positioning hole 21 are both conical structures. This arrangement allows the two clamping plates 3 to cooperate with the blocking rod 1 to tighten the side of the bridge frame when the positioning shaft 51 is fully inserted into the positioning hole 21. A clamping bolt 6 is screwed through the middle of the positioning rod 5. When in use, the top of the clamping bolt 6 and the bottom of the blocking rod 1 are abutted against each other. Then, when the clamping bolt 6 is rotated, the positioning plate 5 moves downward, thereby pushing the positioning shaft 51 and the positioning hole 21 to fit tightly.

[0027] Furthermore, a handle 61 is welded on one end of the clamping bolt 6 which is away from the blocking rod 1 . The handle 61 is a manually operated component, which is convenient for manual hand-holding and screwing of the clamping bolt 6 .

[0028] In this embodiment, both ends of the blocking rod 1 are provided with limiting holes 12 adapted to the insertion shaft 4, that is, the insertion shaft 4 will be inserted into the limiting hole 12 after passing through the connecting hole on the bridge frame side band, at this time, the reliability of the clamping of the splint 3 and the blocking rod 1 on the bridge frame side band can be further improved.

[0029] In this embodiment, a sealing pad 7 is bonded to the side of the splint 3 facing the barrier rod 1. The function of the sealing pad 7 is to seal the connection hole on the bridge frame side board to prevent the connection hole from being corroded by moisture. At the same time, the sealing pad 7 also has the function of protecting the contact surface between the bridge frame side board and the splint 3.

[0030] Working principle: When it is necessary to replace the shift lever 1, remove the positioning rod 5 on the original shift lever 1, and then pull the clamping plate 3 outwards. At this time, the insertion shaft 4 disengages from the connection hole on the side of the bridge frame. Then, by twisting the shift lever 1 in place, it can be easily removed from below between the two side walls of the bridge frame. It should be noted that there is no need to lift the bridge frame. Send the new shift lever 1 from below between the two side walls of the bridge frame, and then reverse-rotate the shift lever 1 so that the two ends of the shift lever 1 abut against the opposite sides of the two side walls of the bridge frame. At this time, manually push the two clamping plates 3 to move towards each other, so that the insertion shafts 4 on the clamping plates 3 are inserted into the connection holes on the side walls of the bridge frame. Then, insert the positioning rod 5 into the position between the shift lever 1 and the support rod 2, align the positioning shaft 51 with the positioning hole 21 and insert it. Then, hold the handle 61 and turn the compression bolt 6. The top of the compression bolt 6 presses against the bottom of the shift lever 1. At this time, the positioning rod 5 moves downwards, and the positioning shaft 51 is inserted into and presses against the positioning hole 21. The two clamping plates 3 cooperate with the shift lever 1 to clamp and fix the two side walls of the bridge frame, completing the replacement of the cross bar of the bridge frame.

[0031] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A horizontal rail of a stepped bridge, comprising a barrier rod (1), characterized in that: Two supporting rods (2) are arranged at the bottom of the blocking rod (1), and the two supporting rods (2) are respectively slidably connected to the positions at the two ends of the bottom of the blocking rod (1), the two supporting rods (2) are collinear and parallel to the blocking rod (1), the two opposing ends of the two supporting rods (2) are fixedly connected to a clamping plate (3) on one side, one side of the clamping plate (3) is fixedly connected to an insertion shaft (4) opposite to the blocking rod (1), and a positioning rod (5) is detachably connected between the two supporting rods (2).

2. The crossbar of a stepped bridge according to claim 1, characterized in that: The cross section of the support rod (2) is square, and positioning blocks (11) are welded to the bottom of the blocking rod (1) near both ends, and a guide channel (111) is provided through one side of the positioning block (11) and is sleeved on the support rod (2).

3. The crossbar of a stepped bridge according to claim 1, characterized in that: Limiting holes (12) adapted to fit the insertion shaft (4) are provided at both ends of the blocking rod (1).

4. The crossbar of a stepped bridge according to claim 1, characterized in that: A sealing rubber pad (7) is bonded to the side of the clamping plate (3) facing the barrier rod (1).

5. The crossbar of a stepped bridge according to claim 1, characterized in that: The upper end surfaces of the two support rods (2) are each provided with a positioning hole (21) close to the adjacent end, and the bottom of the positioning rod (5) is welded with a positioning shaft (51) close to both ends, and the positioning shaft (51) and the positioning hole (21) are plug-connected.

6. The crossbar of a stepped bridge according to claim 5, characterized in that: The positioning shaft (51) and the positioning hole (21) are both conical structures, and a clamping bolt (6) is screwed through the middle of the positioning rod (5).

7. The crossbar of the stepped bridge according to claim 6, characterized in that: A handle bar (61) is welded to one end of the clamping bolt (6) that is away from the blocking rod (1).

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