Safety crawling ladder for capping beam construction

Abstract

The utility model belongs to the technical field of capping beam construction, and particularly relates to a safety crawling ladder for capping beam construction, a crawling ladder assembly is arranged on the wider side of a pier column, a concrete reinforcement base layer is poured on a foundation on one side of the pier column, and the crawling ladder assembly is arranged on the concrete reinforcement base layer; a steel bar connecting piece is embedded in the pier column, a plurality of supporting arms are detachably arranged on the steel bar connecting piece at fixed intervals, and the supporting arms are detachably connected with the crawling ladder assembly. The ladder stand assembly is of a frame type structure formed by detachably connecting a plurality of ladder stand frame units. And the frame type structure is convenient to disassemble and assemble, and is matched with the supporting arms embedded in the pier columns to reinforce connection, so that the safety of the crawling ladder is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cap beam construction, in particular to a safety ladder for cap beam construction. Background Art

[0002] The cap beam refers to the beam installed on the top of the pile pier to support, distribute and transfer the load of the superstructure. It is also called the cap beam. A reinforced concrete or lightly reinforced concrete beam is installed on the pier (platform) or on the pile. Its main function is to support the superstructure of the bridge and transfer all the loads to the lower structure. Some piles are directly connected to the cap beam, while others are connected to the cap beam after the piles are connected to the columns.

[0003] The construction process of pouring the cap beam is: platform erection, laying of bottom formwork, roughening of pier top, reinforcement binding, installation of side and end formwork, cap beam pouring, and formwork removal.

[0004] In the current technology, the safety ladder is made of lightweight steel welded and set along the height direction of the pier body. The ladder uses the ordinary steel pipe scaffolding erected around the pier body as a force-bearing support body, and the side scaffolding also serves to fix the concrete delivery pipeline. However, in the prior art, the ladder is often fixed by connecting with multiple sets of locking bolts or other connecting components to facilitate disassembly. Even so, the disassembly and assembly of the ladder in the prior art is still cumbersome, time-consuming and labor-intensive. Utility Model Content

[0005] In view of the technical problems existing in the background technology, the utility model provides a safety ladder for cap beam construction.

[0006] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0007] A safety ladder for cap beam construction, wherein the ladder assembly is arranged on a wider side of a pier, a concrete steel base layer is cast on the foundation on one side of the pier, and the ladder assembly is arranged on the concrete steel base layer; a steel bar connector is pre-embedded in the pier, and a plurality of handrails are detachably arranged at fixed intervals on the steel bar connector, and the handrails are detachably connected to the ladder assembly; the ladder assembly is a frame structure formed by detachably connecting a plurality of ladder frame units.

[0008] Optionally, the ladder frame unit includes a plurality of horizontal beams and vertical beams, which are welded to each other into a cube or a rectangular parallelepiped, and a bottom plate, a middle plate and a top plate are sequentially arranged along the height direction of the vertical beams, the top plate and the bottom plate are located on the same side, and the middle plate and the top plate are located on opposite sides; a staircase is detachably arranged between the bottom plate and the middle plate, and a staircase is detachably arranged between the middle plate and the top plate, and the staircases are folded together in a zigzag shape for climbing.

[0009] Optionally, a protective net is arranged around the outer side of the ladder frame unit.

[0010] Optionally, two adjacent ladder frame units are detachably connected by a limit block and a locking piece, and a limit block is provided at the right-angle connection point of the upper cross beam of each ladder frame unit, the limit block is arranged in a right-angle shape, the limit block is arranged close to the outer wall of the cross beam, and a square positioning block is arranged at the bottom of the limit block, the inner wall of the positioning block is arranged close to the vertical beam, and a connecting groove is provided on the inner side of the positioning block, and the connecting groove is located on the inner wall at the junction of the cross beams; a limit groove is respectively provided on the two right-angled sides of the positioning block; the locking piece includes two buckling parts arranged at right angles, the bottom end of the buckling part 81 is extended to be provided with a connecting part, the end of the connecting part is provided with a screw, and a locking nut is connected to the screw; when the ladder frame units are spliced ​​together, the two cross beams are spliced ​​together, the buckling parts are cooperated and connected in the limit groove, and the locking nut extends to the bottom of the positioning block through the connecting groove and is locked and fixed by the locking nut.

[0011] Optionally, a limiting portion is disposed at the bottom end of the buckling portion, and the limiting portion is disposed closely against an outer wall of the limiting block.

[0012] Optionally, the cross-section of the connecting portion is set to be square, and the connecting portion is arranged close to the inner wall of the beam.

[0013] Optionally, the limit block is welded and fixed to a horizontal beam and a vertical beam of one of the ladder frame units.

[0014] Optionally, the limit block is slidably arranged on a vertical beam of a ladder frame unit.

[0015] The utility model has the following advantages and beneficial effects:

[0016] In the utility model, the ladder assembly is a frame structure formed by detachably connecting multiple ladder frame units. The frame structure of the ladder of this technology is easy to disassemble and assemble, and the connection is strengthened by the armrests pre-embedded on the pier, which greatly improves the safety of the ladder. Through the specially set limit blocks and locking parts, not only can the positioning between the frames be accurately achieved, but also the disassembly and assembly can be achieved quickly, and the stability and firmness can be guaranteed, thereby further improving the versatility and assembly of the ladder, making it easy to disassemble and use, and greatly saving manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front view of the safety ladder provided by the utility model;

[0018] Figure 2 for Figure 1 Right view of;

[0019] Figure 3 for Figure 1 A top view of

[0020] Figure 4 A structural diagram of the frame-type safety ladder provided by the utility model;

[0021] Figure 5 for Figure 4 A partial enlarged view of point a in the middle;

[0022] Figure 6 A structural diagram of a single frame safety ladder provided by the utility model;

[0023] Figure 7 A structural diagram of the outer frame of the safety ladder provided by the utility model;

[0024] Figure 8 for Figure 7 A partial enlarged view of point b in the middle;

[0025] Fig. 9 A structural diagram of the locking member provided by the utility model;

[0026] Icons: 1- pier, 11- cap beam, 2- ladder assembly, 3- vertical beam, 4- horizontal beam, 41- bottom plate, 42- middle plate, 43- top plate, 5- staircase, 6- handrail, 7- limit block, 71- limit groove, 72- positioning block, 73- connecting groove, 8- locking piece, 81- buckling part, 82- limit part, 83- connecting part, 84- screw, 85- locking nut, 9- base layer. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example

[0030] like Figures 1 to 3As shown, a safety ladder for cap beam construction, the cap beam 11 is arranged at the upper end of the pier 1, and the cap beam 11 is cast by a mold. A concrete steel base layer 9 is cast on the foundation on one side of the pier 1, and a ladder assembly 2 is arranged on the base layer 9. The ladder assembly 2 is arranged on the wider side of the pier 1, and a steel bar connector is pre-embedded when the pier 1 is cast. A plurality of armrests 6 are detachably arranged at a fixed distance on the steel bar connector, and the armrests 6 are connected and fixed to the ladder assembly 2 to ensure the connection strength of the ladder assembly 2 and the stability of the support.

[0031] like Figure 4-6 As shown, the ladder assembly 2 is a frame structure, and the ladder assembly 2 is a frame structure formed by detachably connecting multiple ladder frame units. The multiple frames are detachably connected to facilitate disassembly and assembly for use.

[0032] like Figure 6 As shown, one of the ladder frame units is: a number of horizontal beams 4 and vertical beams 3 are welded to form a cube or a cuboid, and a bottom plate 41, a middle plate 42 and a top plate 43 are sequentially arranged along the height direction of the vertical beam 3, wherein the top plate 43 and the bottom plate 41 are located on the same side, and the middle plate 42 and the top plate 43 are located on the opposite side. A staircase 5 is detachably arranged between the bottom plate 41 and the middle plate 42, and a staircase 5 is detachably arranged between the middle plate 42 and the top plate 43, and the two staircases 5 are folded and climbed to form a zigzag shape. A protective net is arranged around the outside of the ladder frame unit to prevent falling objects from injuring people, which is not shown in the figure.

[0033] like Figure 4 As shown, a ladder assembly 2 is formed by splicing three unit frames. Two adjacent frames are fixedly connected by welding or other detachable methods.

[0034] like Figure 4-9 As shown, as a preferred mode of the utility model, two ladder frame units are detachably spliced ​​and connected. In each frame, a limit block 7 is provided at the right-angle connection point of the upper crossbeam 4. When two ladder frame units are spliced, two crossbeams are spliced ​​with each other, and two adjacent ladder frame units are detachably connected through the limit block 7 and the locking member 8.

[0035] Specifically, Figure 7 , 8 As shown, the limit block 7 is set in a right angle shape, and is set close to the outer wall of the cross beam 4, and a square positioning block 72 is set at the bottom of the limit block 7, the inner wall of the positioning block 72 is set close to the vertical beam 3, and a connecting groove 73 is set on the inner side of the positioning block 72, and the connecting groove 73 is located on the inner wall at the junction of the cross beam 4. A limit groove 71 is respectively set on the two right-angled sides of the positioning block 72.

[0036] like Fig. 9As shown, the locking member 8 includes two buckling parts 81 arranged at right angles, a limiting part 82 is arranged at the bottom end of the buckling part 81, a connecting part 83 is extended from the bottom end of the buckling part 81, a screw rod 84 is arranged at the end of the connecting part 83, and a locking nut 85 is connected to the screw rod 84.

[0037] The cross section of the connecting portion 83 is arranged to be square, and the connecting portion 83 is arranged close to the inner wall of the beam 4 .

[0038] like Figure 5 As shown, when two ladder frame units are spliced, the beams 4 of the two ladder frame units are spliced ​​together, and after the upper beam 5 and the bottom beam 5 are spliced, they are limited by the inner wall of the right-angled limit block 7. Then, the locking member 8 is inserted from top to bottom, so that the buckling portion 81 presses the upper end surface of the beam 4, so that the two ends of the buckling portion 81 extend from the limit groove 71, and the limit portion 82 is set close to the outer wall of the limit block 7. The limit portions 82 on both sides are used for limiting and preventing from falling off, and the connecting portion 83 extends downward through the connecting groove 73, and then the locking nut 85 is locked, so that the locking member 8 and the limit block 7 can be stably and firmly fixed.

[0039] The above connection method can not only quickly position and install the ladder frame unit, but also quickly connect and lock it, making it convenient for disassembly and assembly, and more practical.

[0040] As a preferred embodiment of the present invention, the limit block 7 is welded and fixed to the cross beam 4 and the vertical beam 3 of one of the ladder frame units as a whole, such as by welding, and the limit block 7 is fixedly arranged.

[0041] As another preferred embodiment of the present invention, the limit block 7 is slidably arranged on the vertical beam 3 of a ladder frame unit, and the limit block 7 is relatively slidably arranged.

[0042] In the utility model, the ladder assembly is a frame structure formed by detachably connecting a plurality of ladder frame units. The frame structure is easy to disassemble and assemble, and the connection is strengthened by the armrest 6 pre-embedded on the pier 1, which greatly improves the safety of the ladder. Through the specially arranged limit blocks 7 and locking members 8, not only can the positioning between the frames be accurately achieved, but also the disassembly and assembly can be achieved quickly, and the stability and firmness can be guaranteed, thereby further improving the versatility and assembly of the ladder, facilitating disassembly and assembly, and greatly saving manpower and material resources.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A safety ladder for cap beam construction, characterized in that : It includes a ladder assembly, which is arranged on the wider side of the pier, and a concrete steel base layer is cast on the foundation of one side of the pier, and the ladder assembly is arranged on the concrete steel base layer; a steel bar connector is pre-embedded in the pier, and a plurality of handrails are detachably arranged at fixed distances on the steel bar connector, and the handrails are detachably connected to the ladder assembly; the ladder assembly is a frame structure formed by detachably connecting a plurality of ladder frame units.

2. The safety ladder for cap beam construction according to claim 1 is characterized in that: The ladder frame unit includes a plurality of horizontal beams and vertical beams, which are welded to each other into a cube or a rectangular parallelepiped. A bottom plate, a middle plate and a top plate are sequentially arranged along the height direction of the vertical beams. The top plate and the bottom plate are located on the same side, and the middle plate and the top plate are located on opposite sides. A staircase is detachably arranged between the bottom plate and the middle plate, and a staircase is detachably arranged between the middle plate and the top plate. The staircases are folded with each other in a zigzag shape for climbing.

3. The safety ladder for cap beam construction according to claim 2 is characterized in that: A protective net is arranged around the outer side of the ladder frame unit.

4. The safety ladder for cap beam construction according to claim 2 is characterized in that: Two adjacent ladder frame units are detachably connected through limit blocks and locking pieces. A limit block is provided at the right-angle connection point of the upper crossbeam of each ladder frame unit, the limit block is set in a right-angle shape, the limit block is set close to the outer wall of the crossbeam, and a square positioning block is provided at the bottom of the limit block, the inner wall of the positioning block is set close to the vertical beam, and a connecting groove is provided on the inner side of the positioning block, and the connecting groove is located on the inner wall at the junction of the crossbeam; a limit groove is respectively provided on the two right-angle sides of the positioning block; The locking member comprises two buckling parts arranged at right angles, a connecting part is extended from the bottom end of the buckling part, a screw rod is arranged at the end of the connecting part, and a locking nut is connected to the screw rod; When two ladder frame units are spliced ​​together, two cross beams are spliced ​​together, the buckling portion is connected in the limiting groove, and the locking nut extends to the bottom of the positioning block through the connecting groove and is locked and fixed by the locking nut.

5. The safety ladder for cap beam construction according to claim 4 is characterized in that: A limiting portion is arranged at the bottom end of the buckling portion, and the limiting portion is arranged closely against the outer wall of the limiting block.

6. The safety ladder for cap beam construction according to claim 4 is characterized in that: The cross section of the connecting portion is arranged in a square shape, and the connecting portion is arranged close to the inner wall of the beam.

7. The safety ladder for cap beam construction according to claim 4 is characterized in that: The limit block is welded and fixed to the horizontal beam and the vertical beam of one of the ladder frame units as a whole.

8. The safety ladder for cap beam construction according to claim 4 is characterized in that: The limit block is slidably arranged on a vertical beam of a ladder frame unit.

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