Self-locking safety construction ladder stand for bridge tower section installation

Abstract

The utility model discloses a self-locking type safe construction ladder stand for bridge tower section installation, which belongs to the technical field of bridge tower construction and comprises a ladder stand portion, a ladder stand portion, a ladder stand portion, a ladder stand portion, a ladder stand portion, a ladder stand portion and a plurality of ladder stand portions, and the ladder stand portion comprises two supporting stand columns and a plurality of cross beams arranged between the two supporting stand columns. The self-locking mechanism is arranged on one side of the ladder stand part; the supporting part is arranged on one side of the ladder stand part; the self-locking mechanism comprises two connecting assemblies and a locking assembly, two clamping blocks; and two fixing bolts. According to the utility model, by arranging the self-locking mechanism, the crawling ladder part is quickly fixed with the bridge tower through the self-locking mechanism, so that the defect that potential safety hazards are caused as the crawling ladder cannot be stably connected with the bridge tower section in the prior art is overcome, and the effect that the crawling ladder and the bridge tower section can be quickly and stably connected is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge tower construction, in particular to a self-locking safety construction ladder for installing bridge tower segments. Background Technique

[0002] Most bridges at home and abroad are of steel structure or steel-concrete structure. During the construction of such bridge towers, there are operations of segment hoisting and installation. Due to their different heights, existing inclinations, complex internal layouts, etc., there is usually no construction passage inside, and ladders need to be set on the outside of the bridge tower to facilitate construction and maintenance personnel to enter the inside of the bridge tower to perform corresponding operations. In the prior art, due to the particularity of the structure of the bridge tower segments themselves, considering the segment height, inclination, internal stiffening plates, outer wall plate thickness and openings, etc., the existing ladders cannot stably connect the bridge tower segments, and it is difficult to fit well with the outside of the bridge tower, which may cause damage to the bridge tower body and pose a safety hazard to construction personnel. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problem in the prior art that the ladder cannot stably connect the bridge tower segments, resulting in wear of the bridge tower body and potential safety hazards, and to provide a self-locking safety construction ladder for installing bridge tower segments.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A self-locking safety construction ladder for installing bridge tower segments, including a ladder part, which includes two support columns and a plurality of cross beams arranged between the two support columns. The plurality of cross beams are fixedly connected to the two support columns, and the plurality of cross beams are arranged in an array along the length direction of the support columns;

[0006] A self-locking mechanism, which is arranged on the side of the ladder part closest to the bridge tower at the highest position, and the self-locking mechanism is fixedly connected to the ladder part;

[0007] A support part, which is arranged on the side of the ladder part closest to the bridge tower, and the support part abuts against the bridge tower;

[0008] Among them, the self-locking mechanism includes:

[0009] Two connection components, both of the two connection components are arranged on the same side of the support column, and both of the two connection components are fixedly connected to the support column;

[0010] Two clamping blocks, the clamping blocks are of concave structure, and the recessed part of the clamping blocks faces the bottom end of the ladder part. The two clamping blocks are symmetrically arranged on the outer sides of the two connecting components respectively and are fixedly connected to the connecting components, so that the clamping blocks can be clamped on the tower wall at the top of the bridge tower, thereby fixing the entire self-locking mechanism on the tower wall, and further fixing the ladder part relative to the bridge tower;

[0011] Two fixing bolts. On the side of the two clamping blocks away from the support column, screw holes are also provided. The two fixing bolts are both threadedly connected to the screw holes. By adjusting the fixing bolts, the clamping blocks are fixedly locked with the bridge tower wall.

[0012] Further, the ladder part further includes:

[0013] Flat iron cage hoops, the flat iron cage hoops are arranged on the side of the support column away from the bridge tower, and the flat iron cage hoops are fixedly connected to the two support columns;

[0014] A plurality of flat iron columns, the plurality of flat iron columns are all fixedly connected to the flat iron cage hoops, and each flat iron column is arranged parallel to the support column.

[0015] Further, the connecting component includes:

[0016] Connecting plates, the connecting plates are all trapezoidal plate structures, and the connecting plates are fixedly arranged on the side of the support column closest to the bridge tower at the highest position. The longest side of the connecting plates is arranged parallel to the length direction of the support column;

[0017] Fixed plates, the fixed plates are arranged on the outer sides of the connecting plates, and the clamping blocks are fixedly connected to the fixed plates.

[0018] Further, the support part includes a plurality of stable legs, the stable legs are cylindrical protrusions, and one end of the stable legs is fixedly connected to the side of the support column close to the bridge tower. Among them, the number of stable legs is at least six, and the six stable legs are evenly distributed on the two support columns.

[0019] Further, the bottom end of the connecting plate is a horizontal plane.

[0020] Further, a plurality of first connection holes are provided on the connecting plate, and second connection holes adapted to the first connection holes are provided on the fixed plate. After aligning the centers of the first connection holes and the second connection holes, the fixed plate and the connecting plate are fixed by means of bolt and nut fixation.

[0021] Further, cotton cloth is also provided on the stable legs.

[0022] Further, the connecting plate and the supporting column are fixedly connected by welding.

[0023] The beneficial effects of the present utility model are as follows: By providing a self-locking mechanism, the ladder part is quickly fixed to the bridge tower through the self-locking mechanism, so as to solve the defect in the prior art that the ladder cannot be stably connected to the bridge tower segment, thus causing potential safety hazards, and achieving the effect that the ladder can be quickly and stably connected to the bridge tower segment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a self-locking safety construction ladder for bridge tower segment installation provided in an embodiment of the present utility model;

[0025] Figure 2 is Figure 1 the enlarged structural diagram at A in

[0026] The markings in the figure are shown as follows:

[0027] 1. Ladder part; 11. Supporting column; 12. Cross beam; 13. Flat iron cage hoop; 14. Flat iron column;

[0028] 2. Self-locking mechanism; 21. Connecting piece; 211. Connecting plate; 212. Fixed plate; 22. Clamping block; 23. Fixed bolt;

[0029] 3. Supporting part; 31. Stable support leg; 311. Cotton cloth. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0032] In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] Embodiment

[0035] Referring to Figure 1-2 , in order to solve the disadvantages in the prior art that the climbing ladder cannot be stably connected to the bridge tower segment, resulting in wear of the bridge tower body and potential safety hazards, the present utility model provides a self-locking safety construction climbing ladder for installing bridge tower segments, which includes a climbing ladder part 1, a self-locking mechanism 2, and a support part 3.

[0036] Specifically, the climbing ladder part 1 is an overall cage-like structure, which includes two support columns 11 and a plurality of cross beams 12 arranged between the two support columns 11. A plurality of the cross beams 12 are fixedly connected to the two support columns 11, and a plurality of the cross beams 12 are arranged in an array along the length direction of the support columns 11. The cross beams 12 are for staff to step on. That is, the two support columns 11 and the plurality of cross beams 12 together form a climbing ladder, and the staff climbs through the climbing ladder. The self-locking mechanism 2 is arranged on the side of the climbing ladder part 1 closest to the bridge tower at the highest position, and the self-locking mechanism 2 is fixedly connected to the climbing ladder part 1. The climbing ladder part 1 can be quickly connected to the bridge tower through the self-locking mechanism 2. The support part 3 is arranged on the side of the climbing ladder part 1 closest to the bridge tower, and the support part 3 abuts against the bridge tower. The support part 3 abuts against the bridge tower wall during use to provide stability.

[0037] Among them, the self-locking mechanism 2 includes: two connecting components 21, two clamping blocks 22 and two fixing bolts 23. Both of the two connecting components 21 are arranged on the same side of the support column 11, and both of the two connecting components 21 are fixedly connected to the support column 11, that is, both of the two connecting components 21 are located on the same side direction close to the bridge tower on the two support columns 11. Two clamping blocks 22, the clamping block 22 has a concave structure, and the recessed part of the clamping block 22 faces the bottom end of the ladder part 1, that is, the shapes of the two clamping blocks 22 are inverted concave structures. The two clamping blocks 22 are symmetrically arranged on the outer sides of the two connecting components 21 respectively, and are fixedly connected to the two connecting components 21 respectively, so that the clamping block 22 can be clamped on the tower wall at the top of the bridge tower, thereby fixing the entire self-locking mechanism 2 on the tower wall, and further fixing the ladder part 1 relative to the bridge tower. On one side of the two clamping blocks 22 far from the support column 11, screw holes are further provided, and the two fixing bolts 23 are both threadedly connected to the screw holes. By adjusting the fixing bolts 23, the clamping block 22 can be further stably connected to the bridge tower.

[0038] In this embodiment, the staff lifts the ladder part 1. When the top end of the ladder part 1 exceeds the top end of the bridge tower, that is, the bottom end of the self-locking mechanism 2 is on the same plane as the top end of the bridge tower, the ladder part 1 is gradually moved closer to the bridge tower to make the support part 3 fit the tower wall of the bridge tower. At this time, the two clamping blocks 22 in the self-locking mechanism 2 can be aligned with the top end of the tower wall of the bridge tower, and then the ladder part 1 is abutted against the bridge tower, and the clamping block 22 is clamped and fixed to the bridge tower. By adjusting the fixing bolts 23, the entire self-locking mechanism 2 is connected and fixed to the bridge tower, so that the ladder part 1 is in a fitting and fixed state relative to the bridge tower, preventing shaking, and further forming the self-locking of the ladder part 1. In this embodiment, by setting the self-locking mechanism 2, the ladder part 1 is quickly fixed to the bridge tower through the self-locking mechanism 2, so as to solve the defect that the ladder in the prior art cannot be stably connected to the bridge tower section, thus causing potential safety hazards, and achieving the effect that the ladder can be quickly and stably connected to the bridge tower section.

[0039] In some preferred embodiments, to further reduce the potential safety hazards for the staff during climbing, the ladder part 1 further includes flat iron cage hoops 13 and a plurality of flat iron columns 14. The flat iron cage hoops 13 are arranged on the side of the support column 11 far from the bridge tower, and the flat iron cage hoops 13 are fixedly connected to the two support columns 11. The flat iron cage hoops 13 tightly enclose the side of the entire ladder part 1 for the staff to climb, and the flat iron cage hoops 13 are more compact and firm in structure, thereby providing stronger support and protection for the staff. A plurality of the flat iron columns 14 are all fixedly connected to the flat iron cage hoops 13, and each of the flat iron columns 14 is arranged parallel to the support column 11. The flat iron columns 14 connect and fix each part of the flat iron cage hoops 13 in series, and can further reinforce the stability of the flat iron cage hoops 13.

[0040] In this embodiment, for the convenience of describing the connection component 21, one connection component 21 is described herein. The connection component 21 includes a connecting plate 211 and a fixing plate 212. The connecting plates 211 are all trapezoidal plate structures, and the connecting plate 211 is fixedly arranged on one side of the highest position of the support column 11 close to the bridge tower. The longest side of the connecting plate 211 is arranged parallel to the length direction of the support column 11, that is, the connecting plate 211 is vertically assembled on the side of the support column 11 close to the bridge tower in a welded and fixed manner. Among them, the connecting plate 211 and the support column 11 are fixedly connected by welding to make the connection between the two more firm. The fixing plate 212 is arranged outside the connecting plate 211. Preferably, a plurality of first connection holes are formed in the connecting plate 211, and second connection holes adapted to the first connection holes are formed in the fixing plate 212. After aligning the centers of the first connection holes and the second connection holes, the fixing plate 212 and the connecting plate 211 are fixed by means of bolts and nuts. The clamping block 22 is fixedly connected to the fixing plate 212. Thus, when the fixing position of the fixing plate 212 and the connecting plate 211 changes, the clamping block 22 can change accordingly, and further change the connection position between the clamping block 22 and the bridge tower, improving the adaptability of the device in practical applications.

[0041] Preferably, the bottom end of the connecting plate 211 is a horizontal plane, so that when the clamping block 22 is connected to the bridge tower, the connecting plate 211 is prevented from causing interference, reducing the installation difficulty and time.

[0042] In this embodiment, the supporting part 3 includes a plurality of stabilizing legs 31. The stabilizing legs 31 are cylindrical protrusions, and one end of the stabilizing leg 31 is fixedly connected to one side of the support column 11 close to the bridge tower. Among them, the number of the stabilizing legs 31 is at least six, and the six stabilizing legs 31 are evenly distributed on the two support columns 11, that is, every two stabilizing legs 31 are in a group, and the three groups of stabilizing legs 31 are respectively arranged at the upper, middle and lower parts of the support column 11 to make the support points of the support column 11 on the surface of the bridge tower uniform.

[0043] Preferably, to prevent the stabilizing legs 31 from wearing the surface of the bridge tower, a cotton cloth 311 is further arranged on the stabilizing legs 31. Among them, the cotton cloth 311 is in a strip structure, and the cotton cloth 311 wraps the stabilizing legs 31 by means of adhesion.

[0044] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A self-locking safety construction ladder for installing a bridge tower segment, characterized in that: include: A ladder portion (1), comprising two supporting columns (11) and a plurality of cross beams (12) arranged between the two supporting columns (11), wherein the plurality of cross beams (12) are fixedly connected to the two supporting columns (11), and the plurality of cross beams (12) are distributed in an array along the length direction of the supporting columns (11); A self-locking mechanism (2), the self-locking mechanism (2) being arranged on a side of the highest point of the ladder part (1) close to the bridge tower, and the self-locking mechanism (2) being fixedly connected to the ladder part (1); A support portion (3), the support portion (3) being arranged on a side of the ladder portion (1) close to the bridge tower, and the support portion (3) being in contact with the bridge tower; Wherein, the self-locking mechanism (2) comprises: Two connection components (21), the two connection components (21) are both arranged on the same side of the support column (11), and the two connection components (21) are both fixedly connected to the support column (11); Two clamping blocks (22), each of which is in a concave structure, and the concave portion of the clamping block (22) faces the bottom end of the ladder portion (1); the two clamping blocks (22) are symmetrically arranged on the outsides of the two connecting components (21), and are fixedly connected to the connecting components (21), so that the clamping blocks (22) can be clamped on the tower wall at the top of the bridge tower; Two fixing bolts (23), a screw hole is also provided on one side of the two clamping blocks (22) away from the supporting column (11), and the two fixing bolts (23) are both threadedly connected to the screw holes. By adjusting the fixing bolts (23), the clamping blocks (22) are fixedly locked to the tower wall of the bridge tower.

2. A self-locking safety construction ladder for installing a bridge tower segment according to claim 1, characterized in that: The ladder part (1) further comprises: A flat iron cage hoop (13), wherein the flat iron cage hoop (13) is arranged on a side of the supporting column (11) away from the bridge tower, and the flat iron cage hoop (13) is fixedly connected to the two supporting columns (11); A plurality of flat iron columns (14), wherein the plurality of flat iron columns (14) are fixedly connected to the flat iron cage hoop (13), and each of the flat iron columns (14) is arranged parallel to the supporting column (11).

3. A self-locking safety construction ladder for installing a bridge tower segment according to claim 1, characterized in that: The connection assembly (21) comprises: A connecting plate (211), each of the connecting plates (211) is a trapezoidal plate structure, and the connecting plate (211) is fixedly arranged on a side of the highest point of the supporting column (11) close to the bridge tower, and the longest side of the connecting plate (211) is arranged parallel to the length direction of the supporting column (11); A fixing plate (212), the fixing plate (212) being arranged on the outside of the connecting plate (211), and the clamping block (22) being fixedly connected to the fixing plate (212).

4. A self-locking safety construction ladder for installing a bridge tower segment according to claim 1, characterized in that: The support portion (3) comprises a plurality of stabilizing legs (31), each of the stabilizing legs (31) being a cylindrical protrusion, and one end of the stabilizing leg (31) being fixedly connected to a side of the supporting column (11) close to the bridge tower, wherein the number of the stabilizing legs (31) is at least six, and the six stabilizing legs (31) are evenly distributed on the two supporting columns (11).

5. A self-locking safety construction ladder for installing a bridge tower segment according to claim 3, characterized in that: The bottom end of the connecting plate (211) is a horizontal plane.

6. A self-locking safety construction ladder for installing a bridge tower segment according to claim 3, characterized in that: The connecting plate (211) is provided with a plurality of first connecting holes, and the fixing plate (212) is provided with second connecting holes adapted to the first connecting holes. After aligning the centers of the first connecting holes and the second connecting holes, the fixing plate (212) and the connecting plate (211) are fixed by bolts and nuts.

7. A self-locking safety construction ladder for installing a bridge tower segment according to claim 4, characterized in that: The stabilizing legs (31) are also provided with cotton cloth (311).

8. A self-locking safety construction ladder for installing a bridge tower segment according to claim 3, characterized in that: The connecting plate (211) is fixedly connected to the supporting column (11) by welding.

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