Bridge pier assembly type ladder cage

Abstract

The utility model discloses a bridge pier column assembly type ladder cage, including the module unit of same structure and the superposition of upside and downside, be provided with splicing structure and be used for the bolt of fixed splicing structure splicing between two groups module unit, module unit includes cage bottom and side column, the utility model discloses a side column with limit seat is set, and the limit seat pre -welding is realized on the ground before assembling, and only needs the cage bottom to be put into the limit groove, and the enclosure and side column are inserted and connected, and the connection of enclosure and base is through the inserted limit position, and further is limited to the enclosure top end through the bolt subsequently, and the bolt is also used for connecting two groups module units upside and downside while limiting the enclosure, and the connection between every two groups module units and the assembly inside every group module need only 4 groups bolt at least, and the structure of splicing and insertion not only can reduce the assembly difficulty, and can improve the assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ladder cage technology, specifically a prefabricated ladder cage for bridge piers. Background Technology

[0002] In the field of bridge construction, the construction safety of bridge piers is of paramount importance. Construction workers need to work at heights to perform operations such as pouring concrete for piers and installing formwork; therefore, reliable climbing and protective facilities must be provided to ensure construction safety.

[0003] In traditional bridge pier construction, the installation of the ladder cage typically employs on-site welding or bolting. On-site welding requires specialized welding equipment and skilled welders, is time-consuming, and its quality is heavily influenced by the worker's skill level. While bolting is relatively simple, working at heights requires connecting multiple sets of bolts to link the pier sections, impacting construction efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a prefabricated ladder cage for bridge piers. Through modular design and convenient plug-in and splicing structure, the ladder cage can be quickly assembled and disassembled, reducing the difficulty of high-altitude operations and improving construction efficiency and installation quality stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bridge pier prefabricated ladder cage, comprising modular units with identical structures and stacked vertically, wherein a splicing structure and bolts for fixing the splicing structure after splicing are provided between the two sets of modular units;

[0006] The module unit includes a cage bottom and side posts. A fence and a plug-in structure for inserting the fence are provided between adjacent side posts. A limiting seat for placing the cage bottom is welded to the outer wall of the bottom of the side post. The fence is pressed against the limiting seat. Limiting holes are opened at both ends of the top of the fence. A first screw hole is opened at the top of the side post and a second screw hole is opened at the bottom of the side post. The bolts are threaded into the first screw hole and the second screw hole respectively and plugged into the limiting hole.

[0007] Preferably, the splicing structure includes a slot at the bottom of the side post and an insert block integrally formed at the top of the side post, with the insert block of the lower side post being inserted into the slot of the upper side post.

[0008] Preferably, the insertion structure includes a plug rod and a plug cylinder. The plug cylinder is welded to the outer wall of the side post. The plug rod is arranged in an inverted L shape. One end of the plug rod is welded to the side wall of the enclosure, and the other end of the plug rod is inserted into the plug cylinder.

[0009] Preferably, the enclosure includes a frame and a mesh panel, the mesh panel being fixed inside the frame, and the insert rods being welded to both sides of the frame.

[0010] Preferably, the cage bottom includes a base and support columns welded to the four sides of the base, and the four corners of the base are provided with clearance grooves.

[0011] Preferably, the upper surface of the limiting seat is provided with a placement groove for inserting one end of the support column, the upper surface of the support column is provided with a groove, and the bottom end of the enclosure is located in the groove after being inserted between the two sets of side columns.

[0012] Preferably, both side walls of the side post are welded with protective plates to prevent the fence from tilting outward, and one side of the protective plate is in close contact with the outer wall of the fence.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features side posts with limiting seats. Before assembly, the limiting seats are pre-welded to the ground. Subsequently, only the bottom of the cage needs to be placed into the limiting groove, and the enclosure and side posts need to be plugged in. The connection between the enclosure and the base is limited by the plugging in, and the top of the enclosure is further limited by bolts. These bolts not only limit the enclosure but also connect the upper and lower modular units. The connection between each pair of modular units and the assembly within each module requires a minimum of only 4 sets of bolts. The splicing and plugging structure not only reduces the assembly difficulty but also improves the assembly efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram showing the position of the two sets of modular units after being spliced ​​together vertically.

[0016] Figure 2 This is a structural diagram of the upper and lower splicing joint of the two sets of modular units of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the module unit of this utility model;

[0018] Figure 4 This is an exploded view of the module unit of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the side column of this utility model;

[0020] Figure 6 This is a schematic diagram showing the location of the slot in this utility model.

[0021] In the diagram: 1. Modular unit; 2. Assembly structure; 3. Bolt;

[0022] 101. Cage bottom; 102. Side post; 103. Enclosure; 104. Plug-in structure; 105. Limiting seat; 106. Limiting hole; 107. First screw hole; 108. Second screw hole; 109. Guard plate;

[0023] 201. Slot; 202. Insert block;

[0024] 1041. Insert rod; 1042. Insert tube;

[0025] 1031. Border; 1032. Mesh panel;

[0026] 1011. Base; 1012. Support column; 1013. Clearance groove;

[0027] 1051. Placement slot; 1052. Groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-6 This utility model provides a prefabricated ladder cage for bridge piers, including modular units 1 with the same structure and stacked vertically. A splicing structure 2 and bolts 3 for fixing the splicing structure 2 after splicing are provided between the two sets of modular units 1.

[0030] Based on module unit 1, the height of the ladder cage is extended by stacking the upper and lower modules 1. The splicing structure 2 can improve the assembly efficiency of the upper and lower module units 1.

[0031] Module unit 1 includes a cage bottom 101 and side posts 102. The side posts 102 serve as the main load-bearing frame. A enclosure 103 and a plug-in structure 104 for the enclosure 103 are provided between adjacent side posts 102. A limiting seat 105 for placing the cage bottom 101 is welded to the outer wall of the bottom of the side post 102. The limiting seat 105 provides support and positioning for the cage bottom 101. The enclosure 103 is pressed against the limiting seat 105. Limiting holes 106 are opened at both ends of the top of the enclosure 103. A first screw hole 107 is opened at the top of the side post 102, and a second screw hole 108 is opened at the bottom of the side post 102. The bolts 3 are threaded into the first screw hole 107 and the second screw hole 108 respectively and plugged into the limiting hole 106. The enclosure 103 is connected to the side post 102 through the plug-in structure 104 to form a protective barrier. The bottom of the enclosure 103 is supported by the cage bottom 101 on the limiting seat 105, and the top is locked to the side post 102 by bolts 3.

[0032] Bolt 3 serves a dual function: first, it connects the side posts 102 of the upper and lower module units 1 through the first screw hole 107 and the second screw hole 108; second, it limits the top of the enclosure 103 by inserting into the limiting hole 106. This achieves multiple uses with one bolt, reducing the number of bolts 3 used. The connection between each two module units 1 and the assembly inside each module require a minimum of only 4 bolts 3.

[0033] The splicing structure 2 includes a slot 201 at the bottom of the side post 102 and an insert 202 integrally formed at the top of the side post 102. The insert 202 of the lower side post 102 is inserted into the slot 201 of the upper side post 102. The insertion method of the insert 202 and the slot 201 enables the upper and lower module units 1 to be quickly positioned, reducing the difficulty of high-altitude assembly.

[0034] The plug-in structure 104 includes a plug rod 1041 and a plug sleeve 1042. The plug sleeve 1042 is welded to the outer wall of the side post 102. The plug rod 1041 is arranged in an inverted L shape. One end of the plug rod 1041 is welded to the side wall of the enclosure 103, and the other end of the plug rod 1041 is inserted into the plug sleeve 1042. After the plug rod 1041 is inserted into the plug sleeve 1042, the enclosure 103 and the side post 102 can be connected, which is simple and quick.

[0035] The enclosure 103 includes a frame 1031 and a mesh panel 1032. The mesh panel 1032 forms a protective barrier to prevent people or objects from falling. The mesh panel 1032 is fixed inside the frame 1031, and the insert rod 1041 is welded to both sides of the frame 1031.

[0036] The cage bottom 101 includes a base 1011 and support columns 1012 welded to the four sides of the base 1011. Each of the four corners of the base 1011 has a clearance groove 1013. The support columns 1012 enhance the deformation resistance of the cage bottom 101, ensuring the structural safety of the platform. The clearance grooves 1013 are used to avoid the limiting seat 105, allowing the cage bottom 101 to fit the installation position of the side columns 102 and preventing spatial conflicts between components.

[0037] The upper surface of the limiting seat 105 has a placement groove 1051 for inserting one end of the support column 1012. The upper surface of the support column 1012 has a groove 1052. After the enclosure 103 is inserted between the two sets of side columns 102, its bottom end is located in the groove 1052. When the cage bottom 101 is installed, the bottom end of the support column 1012 is embedded in the placement groove 1051 of the limiting seat 105, and the placement groove 1051 is used to position the cage bottom 101 and limit the horizontal displacement of the cage bottom 101. After the enclosure 103 is inserted, its bottom end is embedded in the groove 1052 of the support column 1012, forming a vertical clamping effect.

[0038] Both side walls of the side post 102 are welded with protective plates 109 to prevent the enclosure 103 from tilting outwards. One side of the protective plate 109 is in close contact with the outer wall of the enclosure 103. The protective plate 109, in close contact with the outer wall of the enclosure 103, forms a lateral support. When the enclosure 103 is subjected to an outward force, the protective plate 109 limits the tilting displacement of the enclosure 103 through a reaction force.

[0039] In use, in a ground working environment, a limiting seat 105 is welded to the outer wall of the bottom end of the side column 102, and the support column 1012 is welded to the side of the base 1011.

[0040] The support column 1012 of the cage bottom 101 is placed into the placement groove 1051 of the limiting seat 105 of the side column 102. The inverted L-shaped inserts 1041 on both sides of the enclosure 103 are aligned with the inserts 1042 on the side column 102 and inserted to achieve the initial fixation of the enclosure 103 and the side column 102. At this time, the bottom end of the enclosure 103 is embedded in the groove 1052 of the support column 1012, the bottom is supported by the cage bottom 101, and the two sides are close to the guard plate 109 of the side column 102. The guard plate 109 forms lateral support to prevent the enclosure 103 from tilting.

[0041] Bolt 3 will not be installed yet. The ground assembly of single module unit 1 is completed and awaits hoisting.

[0042] The module unit 1 is transported to a high altitude using hoisting equipment for splicing and fixing of the upper and lower module units 1;

[0043] Align the slot 201 at the bottom of the side post 102 of the upper module unit 1 with the insert block 202 at the top of the side post 102 of the lower module unit 1. Screw the bolt 3 into the first screw hole 107 and the second screw hole 108 of the side post 102. One end of the bolt 3 is threaded into the screw hole, and the other end is inserted into the limiting hole 106 at the top of the enclosure 103. This bolt 3 performs three functions: connecting the side posts 102 of the upper and lower modules, fixing the top position of the enclosure 103, and enhancing the overall structural stability. Only a minimum of 4 sets of bolts 3 are needed to connect and fix each pair of module units 1 internally.

[0044] Repeat the above steps of ground assembly and high-altitude splicing, stacking module unit 1 layer by layer until the designed height is reached.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated ladder cage for bridge piers, characterized in that: It includes modular units (1) with the same structure and stacked vertically, and a splicing structure (2) and bolts (3) for fixing the splicing structure (2) after splicing are provided between the two sets of modular units (1); The module unit (1) includes a cage bottom (101) and side posts (102). A fence (103) and a plug-in structure (104) for the fence (103) to be inserted are provided between adjacent side posts (102). A limiting seat (105) for the cage bottom (101) to be placed is welded to the outer wall of the bottom of the side post (102). The fence (103) is pressed on the limiting seat (105). Limiting holes (106) are opened at both ends of the top of the fence (103). A first screw hole (107) is opened at the top of the side post (102). A second screw hole (108) is opened at the bottom of the side post (102). The bolt (3) is threaded into the first screw hole (107) and the second screw hole (108) respectively and plugged into the limiting hole (106).

2. The prefabricated ladder cage for bridge piers according to claim 1, characterized in that: The splicing structure (2) includes a slot (201) at the bottom of the side post (102) and an insert (202) integrally formed at the top of the side post (102). The insert (202) of the lower side post (102) is inserted into the slot (201) of the upper side post (102).

3. The prefabricated ladder cage for bridge piers according to claim 2, characterized in that: The plug-in structure (104) includes a plug rod (1041) and a plug tube (1042). The plug tube (1042) is welded to the outer wall of the side post (102). The plug rod (1041) is arranged in an inverted L shape. One end of the plug rod (1041) is welded to the side wall of the enclosure (103), and the other end of the plug rod (1041) is inserted into the plug tube (1042).

4. The prefabricated ladder cage for bridge piers according to claim 3, characterized in that: The enclosure (103) includes a frame (1031) and a mesh panel (1032), the mesh panel (1032) being fixed inside the frame (1031), and the insert rod (1041) being welded to both sides of the frame (1031).

5. The prefabricated ladder cage for bridge piers according to claim 1, characterized in that: The cage bottom (101) includes a base (1011) and support columns (1012) welded to the four sides of the base (1011). The four corners of the base (1011) are provided with clearance grooves (1013).

6. The prefabricated ladder cage for bridge piers according to claim 5, characterized in that: The upper surface of the limiting seat (105) is provided with a placement groove (1051) for inserting one end of the support column (1012). The upper surface of the support column (1012) is provided with a groove (1052). After the enclosure (103) is inserted between the two sets of side columns (102), the bottom end is located in the groove (1052).

7. The prefabricated ladder cage for bridge piers according to claim 1, characterized in that: Both side walls of the side post (102) are welded with protective plates (109) to prevent the enclosure (103) from tilting outwards. One side of the protective plate (109) is in close contact with the outer wall of the enclosure (103).

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