A safe construction ladder

Abstract

The application relates to a safe construction ladder stand applied to the field of viaduct construction. The safe construction ladder stand comprises a climbing assembly and a fixing assembly. The climbing assembly comprises a climbing ladder and a construction platform used for construction on a bridge pier. One end of the climbing ladder is fixed with the construction platform. The side wall of the construction platform abutting against the bridge pier is in a circular arc shape and is attached to the outer edge of the bridge pier. When the construction platform abuts against the side wall of the bridge pier, the circular arc-shaped side wall abuts against the outer edge of the bridge pier. The fixing assembly is arranged on the construction platform. The construction platform is fixedly connected with the bridge pier through the fixing assembly. The safe construction ladder stand has the effect that the phenomenon of stumbling and falling is basically avoided, and the construction safety is improved.

Description

Technical Field

[0001] This application relates to the field of viaduct construction, and in particular to a safety ladder for construction. Background Technology

[0002] With the development of urban transportation, the construction of elevated roads has been fully launched in cities. Since high-altitude work is unavoidable during elevated road construction, many climbing devices have emerged to assist in the construction process.

[0003] The climbing device used in elevated road construction in related technologies includes a climbing part and a fixing part. The climbing part is fixed to the elevated road for construction via the fixing part. The fixing part consists of a strap and a connector. The entire strap is fitted onto the pier, and tightening the strap secures it to the pier, creating a limit. Simultaneously, the connector clamps the pier with two pressure plates, working in conjunction with the strap to more stably fix the climbing part to the pier. The climbing part consists of a ladder and a construction platform. The strap is fixed to the construction platform so that the edge of the platform abuts against the surface of the pier. The construction platform is generally square and has railings at the edges to ensure safety during construction.

[0004] During actual construction, it was found that when using the above-mentioned climbing device for construction, the piers of the viaduct are mostly cylindrical while the construction platform is square. When the construction platform is against the outer wall of the pier, the edge of the construction platform cannot be completely fitted to the outer wall of the pier. When workers stand on the construction platform to operate, there is still a risk of falling into the air, which affects construction safety. Summary of the Invention

[0005] To address the issue of low safety, this application provides a safety ladder for construction.

[0006] The construction safety ladder provided in this application adopts the following technical solution:

[0007] A construction safety ladder includes a climbing component and a fixing component. The climbing component includes a ladder and a construction platform for working on a bridge pier. One end of the ladder is fixed to the construction platform. The side wall of the construction platform that abuts against the bridge pier is arc-shaped and fits against the outer edge of the bridge pier. When the construction platform abuts against the side wall of the bridge pier, the arc-shaped side wall abuts against the outer edge of the bridge pier. The fixing component is disposed on the construction platform, and the construction platform is fixedly connected to the bridge pier through the fixing component.

[0008] By adopting the above technical solution, when the fixing components are fixed, the side wall of the construction platform that abuts against the bridge pier can fit in close to the arc of the bridge pier. After fixing, there is no gap between the construction platform and the bridge pier. When workers stand on the construction platform to carry out construction, there is basically no chance of them slipping and falling into the air, thus improving construction safety.

[0009] Optionally, the fixing component includes a strap portion that is fixed to the construction platform and forms a perforation between the strap portion and the construction platform for passing through the pier, the pier passing through the perforation and the strap portion abutting against the side wall of the pier.

[0010] By adopting the above technical solution, the safety ladder for elevated bridge construction is fixed to the bridge pier with a strap, which makes the fixation more stable, reduces the probability of tipping over, and improves construction safety.

[0011] Optionally, the strap portion includes a first strap, a second strap, a connector, and a tightening member. One end of the first strap is fixed to one side of the construction platform, the tightening member is located on the other side of the construction platform, one end of the second strap is fixed to the tightening member, and the first strap and the second strap are fixedly connected by the connector.

[0012] When the first restraint strap and the second restraint strap are fixedly connected by a connector, the tightening member rolls up the second restraint strap.

[0013] By adopting the above technical solution, when the plug-in component fixes the first and second restraint straps together, it triggers the tightening component to roll up the first and second restraint straps, thereby tightening the first and second restraint straps until they clamp the bridge pier and achieve fixation. The fixation is more stable, reducing the probability of collapse and improving construction safety.

[0014] Optionally, the tightening component includes a winding motor and a winding reel. The winding motor is fixed to the construction platform, and the winding reel is coaxially fixed to the shaft of the winding motor. One end of the second restraint strap is fixed to the winding reel.

[0015] By adopting the above technical solution, a redundant second binding strip is wound on the reel. When the diameter of the bridge pier is large, it can be used by winding and unwinding. The winding motor is also a forward and reverse motor. After disassembly, the second binding strip can be unwound by controlling the winding motor to adapt it for the next use.

[0016] Optionally, the connector includes a connector plate and a receiving plate. The receiving plate is fixed to the other end of the second restraint strap, and the connector plate is fixed to the other end of the first restraint strap. The receiving plate has a receiving hole, and a switch for controlling the winding motor is provided in the receiving hole. When the connector plate is inserted into the receiving hole, the connector plate triggers the switch to start the winding motor.

[0017] By adopting the above technical solution, when the plug plate is inserted into the receiving plate, the winding motor can be triggered to start, thereby winding up the second restraining belt. The first and second restraining belts can be tightened until they tighten around the bridge pier to achieve fixation. The fixation is more stable, reducing the probability of collapse and improving construction safety.

[0018] Optionally, the fixing component includes an abutment portion, the abutment portion includes a telescopic member and a fixing member, the construction platform is provided with a telescopic hole for accommodating the telescopic member, the telescopic member is inserted into the telescopic hole and reciprocates within the telescopic hole, and the fixing member is provided on the telescopic member to fix the telescopic member.

[0019] By adopting the above technical solution, when encountering bridge piers of different diameters, the expansion joint extends from the expansion hole and abuts against the outer edge of the bridge pier. When the construction platform and the bridge pier are not completely fitted, different numbers of expansion shafts can be used to fill the gap between the construction platform and the bridge pier. After fixing, there is no gap between the construction platform and the bridge pier. When workers stand on the construction platform to carry out construction, there will be virtually no phenomenon of slipping and falling into the air, thus improving construction safety.

[0020] Optionally, the telescopic component includes several telescopic shafts, and several telescopic holes are opened on the side wall of the construction platform facing the pier, with each telescopic shaft being inserted into a corresponding telescopic hole;

[0021] The telescopic shaft has several fixing holes along its diameter, and these fixing holes are evenly distributed along its length. The fixing member fixes the telescopic shaft.

[0022] By adopting the above technical solution, when encountering bridge piers of different diameters, multiple telescopic shafts extend from the telescopic holes and abut against the outer edge of the bridge pier. When the construction platform and the bridge pier are not completely fitted, different numbers of telescopic shafts can be used to fill the gap between the construction platform and the bridge pier. After fixing, there is no gap between the construction platform and the bridge pier. When workers stand on the construction platform to carry out construction, there will be virtually no phenomenon of slipping and falling into the air, thus improving construction safety.

[0023] Optionally, the fixing component includes a fixing stud, which is inserted into the fixing hole and passes through the telescopic shaft, and fixing nuts are threaded to both ends of the fixing stud.

[0024] By adopting the above technical solution, the fixing studs run through all the telescopic shafts and are finally fixed by the fixing nuts. The telescopic shafts and studs form a crisscrossing mesh structure, which fills the gap between the construction platform and the bridge pier. At the same time, by covering this area with a plate, it can be integrated with the original construction platform, reducing the risk of workers falling into the gap during construction and improving the safety of construction.

[0025] Optionally, the fixing component further includes a fixing plate with a through hole. One end of the telescopic shaft extending out of the telescopic hole is inserted into the through hole. The fixing plate abuts against the outer wall of the pier. One end of the telescopic shaft passing through the through hole is provided with an external thread. A locking nut that meshes with the external thread is fitted on the telescopic shaft.

[0026] By adopting the above technical solution, the telescopic shaft that does not abut against the bridge pier extends out, passes through a fixing plate, and is locked with a locking nut, so that the fixing plate abuts against the bridge pier. Together with the strap, it achieves the function of fixing, making the fixation more stable, reducing the probability of tipping over, and improving construction safety.

[0027] Optionally, the outer edges of the construction platform and the ladder are equipped with guardrails, and the end of the ladder away from the construction platform is equipped with a pressure plate.

[0028] By adopting the above technical solution, the pressure plate can disperse the pressure, reduce the possibility of sinking, and make the ladder more stable to use.

[0029] In summary, this application includes at least one of the following beneficial effects:

[0030] 1. When the fixing components are fixed, the side wall of the construction platform that abuts against the bridge pier can fit with the arc of the bridge pier. After fixing, there is no gap between the construction platform and the bridge pier. When workers stand on the construction platform to carry out construction, there will be virtually no phenomenon of slipping and falling into the air, thus improving construction safety.

[0031] 2. When encountering bridge piers of different diameters, the expansion joint extends from the expansion hole and abuts against the outer edge of the bridge pier. When the construction platform and the bridge pier are not completely fitted, different numbers of expansion shafts can be used to fill the gap between the construction platform and the bridge pier. After fixing, there is no gap between the construction platform and the bridge pier. When workers stand on the construction platform to carry out construction, there will be virtually no phenomenon of slipping and falling into the air, thus improving construction safety.

[0032] 3. In addition to the first and second restraint straps, a fixing plate can be used for further fixation. The telescopic shaft that does not abut against the pier extends out, through which the fixing plate is inserted and locked with a locking nut, so that the fixing plate abuts against the pier. Together with the straps, it achieves the function of fixation, making the fixation more stable, reducing the probability of tipping over, and further improving construction safety. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the first embodiment of the safety ladder for viaduct construction in this application, showing its usage state.

[0034] Figure 2 This is a structural schematic diagram of the first embodiment of the safety ladder for viaduct construction in this application.

[0035] Figure 3 This is a schematic diagram of the usage state structure of the second embodiment of the safety ladder for viaduct construction in this application.

[0036] Figure 4 This is a structural schematic diagram of a second embodiment of the safety ladder for viaduct construction in this application.

[0037] Figure 5 This is a schematic diagram of the expansion joint of the second embodiment of the safety ladder for viaduct construction in this application.

[0038] In the diagram: 1. Climbing assembly; 11. Ladder; 111. Guardrail; 112. Pressure plate; 12. Construction platform; 2. Fixing assembly; 21. Straps; 211. First restraint strap; 212. Second restraint strap; 213. Connector; 2131. Connector plate; 2132. Support plate; 214. Tightening component; 2141. Rewinding motor; 2142. Rewinding reel; 22. Abutment part; 221. Telescopic component; 2211. Telescopic shaft; 2212. Fixing hole; 2213. Telescopic hole; 222. Fixing component; 2221. Fixing stud; 3. Pier. Detailed Implementation

[0039] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0040] This application discloses a safety ladder for construction. (Refer to...) Figure 1 and Figure 2 The construction safety ladder includes at least a climbing component 1. The climbing component 1 includes a ladder 11 and a construction platform 12. One end of the ladder 11 is in contact with the ground, and the other end is fixed to the construction platform 12. The construction platform 12 is in contact with the bridge pier, allowing workers to stand on it to perform construction work. The sidewall of the construction platform 12 that contacts the bridge pier is arc-shaped, matching the curvature of the pier. This ensures a tight fit between the construction platform 12 and the pier, eliminating gaps and minimizing the risk of workers slipping and falling, thus improving construction safety. A pressure plate 112 is fixed to the ground-contacting end of the ladder 11. When workers stand on the construction platform 12, the pressure plate 112 distributes pressure, reducing the possibility of the ladder 11 sinking and making it more stable.

[0041] Reference Figure 3 and Figure 4A fixing component 2 can be added to the climbing component 1. The fixing component 2 includes at least a strap section 21, which includes a first restraint strap 211 and a second restraint strap 212. The first restraint strap 211 is fixed to one side of the construction platform 12, and the second restraint strap 212 is located on the other side of the construction platform 12. The first restraint strap 211 and the second restraint strap 212 are fixedly connected to each other via a connector 213. When the first restraint strap 211 and the second restraint strap 212 are fixedly connected via the connector 213, a perforation is formed between the first restraint strap 211, the second restraint strap 212, and the construction platform 12, allowing the bridge pier to pass through. The first restraint strap 211 and the second restraint strap 212 tighten around the bridge pier to secure the climbing ladder 11 and the construction platform 12. During construction, the climbing ladder 11 and the construction platform 12 are fixed to the bridge pier using the strap section 21, resulting in more stable fixation, reducing the probability of tipping over, and improving construction safety.

[0042] For a more preferred option, refer to Figure 3 and Figure 4 The second restraint strap 212 has an adjustable length to accommodate piers of different diameters. Specifically, a tightening member 214 can be fixed to one side of the construction platform 12 used to fix the second restraint strap 212. The second restraint strap 212 is wrapped around the tightening member 214 and tightened by the tightening member 214. When the first restraint strap 211 and the second restraint strap 212 are interlocked and fixed by the connector 213, the tightening member 214 can retract the second restraint strap 212 to adjust the overall length of the first restraint strap 211 and the second restraint strap 212 to accommodate piers of different diameters. During construction, the first restraint strap 211 and the second restraint strap 212 tighten around the pier to secure the ladder 11 and the construction platform 12. During construction, the ladder 11 and the construction platform 12 are fixed to the pier by the strap section 21, making the fixation more stable, reducing the probability of tipping over, and improving construction safety.

[0043] Reference Figure 3 and Figure 4The tightening component 214 includes a winding motor 2141 and a winding reel 2142. The winding motor 2141 is fixed to the construction platform 12 and located on the back of the platform 12 (the side facing away from where the workers stand). The winding reel 2142 is directly fixed to the shaft of the winding motor 2141. The winding reel 2142 is used to wind the second binding tape 212, and the end of the second binding tape 212 is fixed to the winding reel 2142. Redundant second binding tape 212 is wound onto the winding reel 2142, which can be used by unwinding when the diameter of the bridge pier is large. The winding motor 2141 is also a reversible motor; after disassembly, the second binding tape 212 can be unwound by reversing the winding motor 2141 to prepare it for the next use. A switch for controlling the start of the winding motor 2141 is located on the connector 213. When the first binding strap 211 and the second binding strap 212 are fixed together via the connector 213, the switch is triggered, causing the winding motor 2141 to start and wind up the second binding strap 212. When the diameter of the bridge pier is large, this can be achieved through a winding and unwinding method. The winding motor 2141 is also a reversible motor; after disassembly, the second binding strap 212 can be unwound by reversing the winding motor 2141 for future use.

[0044] Reference Figure 3 and Figure 4 The connector 213 includes a connector plate 2131 and a receiving plate 2132. The connector plate 2131 is fixed to the end of the first restraint strap 211 used to connect with the second restraint strap 212. The receiving plate 2132 is fixed to the second restraint strap 212 and has a receiving hole. When the first restraint strap 211 and the second restraint strap 212 are interlocked, the connector plate 2131 is inserted into the receiving hole. A switch is fixed to the side wall of the receiving hole. When the connector plate 2131 is inserted, the switch is triggered, causing the second restraint strap 212 to tighten. This tightens the first and second restraint straps 211 and 212 around the pier, securing the ladder 11 and the construction platform 12. During construction, the ladder 11 and the construction platform 12 are secured to the pier using the straps 21, resulting in more stable fixation, reducing the probability of tipping over, and improving construction safety.

[0045] Reference Figure 3 and Figure 4 The fixing component 2 may also include an abutment portion 22, which includes a telescopic member 221 and a fixing member 222. When the diameters of the bridge piers are different, the abutment portion 22 can be used to fill the gaps. Figure 5The abutment part 22 includes an expansion joint 221 and a fixing member 222. An expansion hole 2213 is provided on the side wall of the construction platform 12 that abuts against the pier to accommodate the expansion joint 221. When there is a gap between the pier and the construction platform 12, the expansion joint 221 extends from the expansion hole 2213 and abuts against the side wall of the pier to fill the gap. The fixing member 222 fixes the extended length of the expansion joint 221, preventing it from retracting back into the expansion hole 2213 during construction. The expansion joint 221 includes several expansion shafts 2211. Several expansion holes 2213 are provided on the side wall of the construction platform 12 facing the pier. Each expansion shaft 2211 is inserted into one expansion hole 2213. Several fixing holes 2212 are provided along the diameter of the expansion shaft 2211 and are evenly distributed along the length of the expansion shaft 2211. The fixing member 222 fixes the expansion shaft 2211. The fixing component 222 includes fixing studs 2221, which are inserted into fixing holes 2212 and pass through telescopic shafts 2211. Fixing nuts are threaded onto both ends of the fixing studs 2221. When encountering piers of different diameters, multiple telescopic shafts 2211 extend from the telescopic holes 2213 and abut against the outer edge of the pier. When the construction platform 12 is not completely fitted to the pier, different numbers of telescopic shafts 2211 can be used to fill the gaps in the construction platform 12. After fixing, there are no gaps between the construction platform 12 and the pier, and workers standing on the construction platform 12 are unlikely to slip and fall, thus improving construction safety. The fixing studs 2221 pass through all the telescopic shafts 2211 and are finally fixed by fixing nuts. The telescopic shafts 2211 and the studs form a crisscrossing mesh structure, filling the gaps between the construction platform 12 and the pier. Simultaneously, by covering this area with a sheet material, it can form a unified whole with the original construction platform 12, reducing the risk of workers slipping and falling during construction and improving construction safety. A limiting block is fixed to the end of the telescopic shaft 2211 that is inserted into the telescopic hole 2213, so that even if the telescopic shaft 2211 is fully extended, it cannot be completely removed from the telescopic hole 2213.

[0046] Reference Figure 3 and Figure 4 and combined Figure 5The fixing component 222 may also include a fixing plate. The telescopic shaft 2211, which is not in contact with the pier, can extend to the other side of the pier after it extends out. A through hole is opened on the fixing plate so that the telescopic shaft 2211 can pass through the fixing plate, so that the fixing plate can abut against the other side of the pier. At this time, an external thread is opened on the end of the telescopic shaft 2211 that passes through the fixing plate and a locking nut is used to press the fixing plate tightly against the pier. That is, the fixing plate, the construction platform 12 and the telescopic shaft 2211 can surround and abut against the pier. Together with the first restraint belt 211 and the second restraint belt 212, they fix the climbing ladder 11 and the construction platform 12 to the pier. The entire safety ladder is more stable, reduces the probability of tipping over and improves construction safety.

[0047] In use, this application first establishes a tight fit between the curved sidewall of the construction platform 12 and the bridge pier. This reduces the gap between the construction platform 12 and the bridge pier, significantly reducing the risk of workers slipping and falling while standing on the platform, thus improving construction safety. When encountering bridge piers of varying diameters, the telescopic shaft 2211 extends and abuts against the pier to accommodate changes in curvature. The extended portion of the shaft is locked in place by a fixing stud 2221, which passes through the telescopic shaft 2211. Both ends of the stud are secured with nuts that abut against the telescopic shaft 2211, achieving a locking mechanism. The crisscrossing arrangement of the fixing studs 2221 and the telescopic shaft 2211 effectively fills the gap, further reducing the risk of workers slipping and falling while standing on the construction platform 12, thus improving construction safety. Additionally, covering this area with a sheet material integrates it with the existing construction platform 12, further reducing the risk of workers slipping and improving overall construction safety. The safety ladder can also be secured using a combination of the first restraint strap 211 and the second restraint strap 212. The second restraint strap 212 can be wound up and unwound to accommodate piers of different diameters. In addition to the securing with the first and second restraint straps 211, a fixing plate can be used for further reinforcement. The telescopic shaft 2211, which does not contact the pier, extends out and passes through the fixing plate, which is then locked in place with a locking nut. This causes the fixing plate to abut against the pier, working in conjunction with the strap 21 to achieve a more stable fixation, reducing the probability of tipping over and further improving construction safety.

[0048] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A construction safety ladder, comprising a climbing component (1) and a fixing component (2), characterized in that: The climbing component (1) includes a climbing ladder (11) and a construction platform (12) for construction on the pier (3). One end of the climbing ladder (11) is fixed to the construction platform (12). The side wall of the construction platform (12) that abuts against the pier (3) is arc-shaped and fits against the outer edge of the pier (3). When the construction platform (12) abuts against the side wall of the pier (3), the arc-shaped side wall abuts against the outer edge of the pier (3). The fixing component (2) is provided on the construction platform (12). The construction platform (12) is fixedly connected to the pier (3) through the fixing component (2). The fixing component (2) includes a strap (21) which is fixed to the construction platform (12) and forms a through hole between the strap (21) and the construction platform (12) for passing through the pier (3). The pier (3) passes through the through hole and the strap (21) abuts against the side wall of the pier (3). The strap section (21) includes a first strap (211), a second strap (212), a connector (213), and a tightening member (214). One end of the first strap (211) is fixed to one side of the construction platform (12), and the tightening member (214) is located on the other side of the construction platform (12). One end of the second strap (212) is fixed to the tightening member (214), and the first strap (211) and the second strap (212) are fixedly connected by the connector (213). The tightening component (214) includes a winding motor (2141) and a winding reel (2142). The winding motor (2141) is fixed on the construction platform (12). The winding reel (2142) is coaxially fixed with the shaft of the winding motor (2141). One end of the second binding strap (212) is fixed on the winding reel (2142). The connector (213) includes a connector plate (2131) and a receiving plate (2132). The receiving plate (2132) is fixed to the other end of the second restraint strap (212), and the connector plate (2131) is fixed to the other end of the first restraint strap (211). The receiving plate (2132) has a receiving hole, and a switch for controlling the winding motor (2141) is provided in the receiving hole. When the connector plate (2131) is inserted into the receiving hole, the connector plate (2131) triggers the switch to start the winding motor (2141).

2. The construction safety ladder according to claim 1, characterized in that: The fixing component (2) includes an abutment part (22), the abutment part (22) includes a telescopic member (221) and a fixing member (222), the construction platform (12) is provided with a telescopic hole (2213) for accommodating the telescopic member (221), the telescopic member (221) is inserted into the telescopic hole (2213) and reciprocates within the telescopic hole (2213), and the fixing member (222) is provided on the telescopic member (221) to fix the telescopic member (221).

3. A construction safety ladder according to claim 2, characterized in that: The telescopic component (221) includes several telescopic shafts (2211), and several telescopic holes (2213) are opened on the side wall of the construction platform (12) facing the pier (3). Each telescopic shaft (2211) is inserted into a corresponding telescopic hole (2213). The telescopic shaft (2211) has a plurality of fixing holes (2212) along the diameter direction of the telescopic shaft (2211), and the plurality of fixing holes (2212) are evenly distributed along the length direction of the telescopic shaft (2211), and the fixing member (222) fixes the telescopic shaft (2211).

4. A construction safety ladder according to claim 3, characterized in that: The fastener (222) includes a fixing stud (2221), which is inserted into the fixing hole (2212) and passes through the telescopic shaft (2211). The two ends of the fixing stud (2221) are threaded with fixing nuts.

5. A construction safety ladder according to claim 4, characterized in that: The fixing member (222) also includes a fixing plate with a through hole. One end of the telescopic shaft (2211) extending out of the telescopic hole (2213) is inserted into the through hole. The fixing plate abuts against the outer wall of the pier (3). One end of the telescopic shaft (2211) passing through the through hole is provided with an external thread. A locking nut that meshes with the external thread is fitted on the telescopic shaft (2211).

6. A construction safety ladder according to claim 4, characterized in that: The outer edges of the construction platform (12) and the ladder (11) are provided with guardrails (111), and the end of the ladder (11) away from the construction platform (12) is provided with a pressure plate (112).

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