Plate buckle support assembly type square ladder cage

Abstract

A disc buckle support assembly type square ladder cage comprises four stand columns serving as vertical supports, bases are installed at the bottoms of the four stand columns respectively, transverse rods are installed between the adjacent stand columns of the ladder cage, pedals used for forming an interlayer walkway and an operation platform are installed and laid on the transverse rods, inclined rods are installed between the outer sides of the two stand columns of the square ladder cage, and the inclined rods are connected with the bases. A safety protection net is installed between the two cross rods between the upper layer and the lower layer, and step ladders forming an upper channel and a lower channel are installed in the ladder cage. The stand column is formed by splicing a plurality of stand column bodies, a plurality of connecting discs are evenly distributed on each stand column body, a plurality of bolting holes are formed in the connecting discs, and a connecting sleeve is fixedly arranged at the top end of each stand column body. The transverse rod comprises a transverse rod body, the two ends of the transverse rod body are each provided with a plug used for being connected with the connecting disc in an inserted mode, the plugs are provided with inserting openings used for being inserted into the connecting discs in a penetrating mode, and the plugs are also provided with bolting holes corresponding to the connecting discs. The disc buckle support assembly type square ladder cage is rapid in installation, and the installation and the disassembly can be directly realized manually.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction tools, in particular to a buckle bracket assembled square ladder cage. Background Art

[0002] A safety cage is a temporary access structure widely used in bridge construction, building construction, industrial facilities, and other fields. It contains a ladder or step ladder, with bolts or scaffolding connectors used to connect the rods and connectors. The rods and connectors are mostly standard components, resulting in a stable and impact-resistant structure. During construction, workers can ascend and descend the cage, preventing falls. The cage also forms an enclosed area, ensuring a safe working environment for all workers, ensuring safe construction.

[0003] Safety ladder cages are mostly box-type rectangular frame structures, fixed around the bridge's high piers. Construction workers ascend to the various working platforms along a zigzag ladder. To facilitate assembly and disassembly, prefabricated safety ladder cages have been developed. The following literature on prefabricated safety ladder cages is available:

[0004] 1. Chinese Patent: An assembled safety ladder cage, application number: 202122585939.7, application date: 2021.10.26, abstract: The utility model relates to an assembled safety ladder cage, comprising two platform units, columns and safety protection nets; the platform unit comprises an assembly formed by a four-way connector and a cross bar, and the columns are detachably installed between the four-way connectors of the upper and lower platform units; a detachable turning platform and safety steps for construction workers to go up and down are installed on the platform unit, and step handrails are installed on the inner side of the safety steps; the safety protection net comprises small protection nets arranged on the front and rear sides of the platform unit and large protection nets on the left and right sides; the utility model has a simple structure and ingenious design. The assembled safety ladder cage is mainly used for people going up and down during engineering construction. Its main components are assembled platform units and columns, safety steps and protection nets; the assembled safety ladder cage has high structural strength and good overall stability. The width of the pedestrian ladder is appropriate, and people going up and down can be staggered freely, which is also very convenient for carrying tools.

[0005] Application research has found that while the aforementioned prefabricated safety ladder cage can be installed in an assembled manner, it requires re-hoisting after each section of pier construction is completed, and a safety ladder must be set up to install the upper working platform. Both the installation and removal of the safety ladder cage require large-scale lifting equipment, resulting in high machinery utilization and high construction costs. For bridge piers with tie beams, the safety ladder cage must be hoisted onto the tie beam working platform during the construction of the second section of the pier. The safety ladder cage must be secured to the tie beam working platform, and construction workers must also set up a safety ladder to reach the tie beam working platform. This results in multiple construction steps and low efficiency, hindering construction progress. Therefore, it is necessary to design a prefabricated safety ladder cage that can be installed and removed directly by hand. Summary of the Invention

[0006] The purpose of the utility model is to provide a square ladder cage assembled with a disc-shaped bracket. The square ladder cage assembled with a disc-shaped bracket is square in shape and is installed and attached to the outer circumference of a cylindrical pier. It has the advantages of simple structure, quick installation, firm attachment and high turnover rate. The installation and disassembly of the ladder cage can be achieved directly by manual labor, which reduces the utilization rate of lifting machinery and greatly reduces construction costs.

[0007] The utility model adopts the following technical solutions:

[0008] A square ladder cage with a buckle bracket assembly includes four vertical columns as the four corner supports of the square ladder cage, the bottoms of the four columns are respectively installed with bases, cross bars are installed between the adjacent columns between the layers of the ladder cage, and pedals are installed on the cross bars to form inter-layer walkways and work platforms. An oblique rod is installed between the outer sides of the two vertical columns of the square ladder cage, a safety net is installed between the two cross bars between the upper and lower layers, and a step ladder is installed in the ladder cage to form an up and down passage. The columns are spliced ​​by multiple column sections, and each column section is evenly distributed with A plurality of connecting plates are provided, and a through hole for penetrating the column body is provided in the center of the connecting plate, and a plurality of bolt holes are provided on the connecting plate around the through hole. The column body passes through the through hole and is welded and fixed to the connecting plate. A connecting sleeve for connecting the two column bodies in series is fixed on the top of each column body, and the bottom end of the upper column body is inserted into the connecting sleeve at the top of the lower column body. In order to connect firmly, a bolt hole can be provided on the connecting sleeve, and a bolt is installed in the bolt hole to lock and fix the inserted column body and the connecting sleeve; the cross bar includes a cross bar body, a cross bar body A plug is provided at each end for plugging into the connecting plate, and the plug is provided with a socket for inserting the connecting plate, and the plug is also provided with a bolt hole corresponding to the connecting plate; during installation, all the connecting plates on the two column bodies, each two connecting plates forming a pair, are plugged into the corresponding plugs at both ends of the cross bar body, and then bolts or connecting pins are inserted into the bolt holes to connect the cross bar and the column. The operator can use the cross bar as a ladder for climbing up and install components at high places. When the floor height is reached, the diagonal bar is connected and fixed to the column, and a safety net is installed. The safety net is installed and fixed by hanging from above and plugging from below. The diagonal bar is connected and fixed to the column, and the safety net is installed. Then, the step ladder is installed in a fixed position, thereby completing the construction of the bottom ladder cage frame, and then the pedals are installed; the components required for the upper ladder cage are moved from the step ladder to the pedals. The cross bar used as a ladder on the bottom layer can be removed as a ladder for climbing on the upper layer as needed, and the N-layer structure of the ladder cage is completed in the same way as the bottom ladder cage frame is constructed, until the top layer. The top layer height should be higher than the height of an inter-layer platform of the bridge pier to ensure the safety of personnel operations.

[0009] Further preferably, the safety net includes a safety net frame, the safety net being installed within the safety net frame, the top of the safety net frame being provided with a hook for hanging on the upper horizontal bar, the bottom of the safety net frame being provided with a slot for inserting into the lower horizontal bar, the hook and slot being staggered to avoid interference between the hook and slot when the upper and lower safety nets are installed. An inclined rod is installed on the outside of the safety net, and plugs for plugging into the connection plate are also provided at both ends of the inclined rod, the plug having a socket for inserting into the connection plate, and the plug also having a bolt connection hole corresponding to the connection plate.

[0010] Further preferably, the upper and lower ends of the step ladder are respectively provided with step ladder hooks for limiting the position with the ladder cage buckle.

[0011] Further preferred: the pedal includes an installation platform pedal and a platform pedal, the installation platform pedal is arranged at the four corners of the inter-layer platform, and a installation platform pedal column is installed in the ladder cage at the four corners of the inter-layer platform respectively. The structure adopted by the installation platform pedal column is consistent with the column, and a connecting plate is also provided. The connecting plate corresponding to the inter-layer platform is connected to the two adjacent cross bars through a connecting rod to form an installation frame for the installation platform pedal, the connecting rod includes a connecting rod body, one end of the connecting rod body is provided with a card plug for hanging with the cross bar, and the other end of the connecting rod body is provided with a plug for bolting with the connecting plate; the installation platform pedal includes an installation platform pedal frame, and both ends of the installation platform pedal frame are provided with installation platform pedal hooks for connecting with the cross bar and the connecting rod. In order to ensure a firm connection, the installation platform pedal frame is connected to the cross bar and the connecting rod hook and then tied.

[0012] Further preferred: the platform pedal includes a platform pedal frame, both ends of the platform pedal frame are provided with platform pedal buckles for installing the platform pedal frame buckles, both sides of the platform pedal frame are respectively provided with bolting ears for splicing, and the cross bar is also provided with corresponding bolting ears.

[0013] Further preferably, a curved pedal is provided between the platform pedal and the pier column, and the curved pedal is buckled and fixed to the platform pedal via a buckle provided on the pedal frame.

[0014] Further preferably, the base includes a bottom plate, a plug rod for plugging into the column is vertically welded at the center of the bottom plate, and the plug rod is further reinforced and connected to the bottom plate by reinforcing ribs.

[0015] Further preferred: the insertion rod is also provided with an adjustment plate for adjusting the height of the column, and a pad can be passed through the insertion rod, so that the pad is placed on the adjustment plate, and the columns at the four corners of the square ladder cage are adjusted to the same horizontal height.

[0016] This buckle bracket assembled square ladder cage has the following advantages:

[0017] 1. The assembled square ladder cage of this disc-shaped bracket is square in shape and is installed and attached to the outer circumference of the cylindrical pier. For the construction of piers with pier tie beams, there is no need to hoist the ladder cage onto the pier tie beam platform. It can be directly erected upwards, and the step ladder inside the ladder cage can be used to reach the cap beam working platform, reducing the safety ladder installation process and improving construction efficiency. At the same time, attachment points can be set on the completed pier to ensure the overall stability of the structure. It has the advantages of simple structure, fast installation, firm attachment and high turnover rate. By designing all parts to form an assembled structure, it is easy to assemble and disassemble. The structure of the crossbar and the column can be designed so that the crossbar can be used as a climbing ladder. The ladder cage structure can be erected and installed directly by manual labor, which reduces the utilization rate of lifting machinery and greatly reduces construction costs.

[0018] 2. This buckle bracket assembled safety ladder cage can be used to install and remove the steel bars of the pier tie beam working platform, avoiding the safety hazards of the traditional steel bar installation process and reducing safety risks.

[0019] 3. All components of this buckle bracket assembled safety ladder cage are made of general materials, and all components can be disassembled and reused repeatedly, with low long-term use cost and significant economic benefits. It can be used in the construction of cylindrical high piers or cylindrical buildings and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of the square ladder cage assembled with buckle brackets;

[0021] Figure 2 is a structural diagram of the base;

[0022] Figure 3 It is a structural diagram of the column;

[0023] Figure 4 Schematic diagram of the connection structure between the column and the connecting plate;

[0024] Figure 5 It is a structural diagram of the crossbar;

[0025] Figure 6 for Figure 5 Schematic top view of

[0026] Figure 7 for Figure 5 A partial enlarged schematic diagram;

[0027] Figure 8 It is a structural diagram of the safety protection net;

[0028] Figure 9 for Figure 7 Schematic diagram of the left side;

[0029] Figure 10 is a structural diagram of the connecting rod;

[0030] Figure 11 Schematic diagram of the structure of the step ladder;

[0031] Figure 12 Schematic diagram of the structure of the platform pedal;

[0032] Figure 13 for Figure 12 Schematic top view of

[0033] Figure 14 This is a schematic diagram of the structure for installing the platform pedal;

[0034] Figure 15 for Figure 14Schematic top view of

[0035] The names corresponding to the serial numbers in the figure are:

[0036] 1. Base; 2. Upright; 3. Connecting plate; 4. Safety net; 5. Diagonal bar; 6. Cross bar; 7. Install platform pedal; 8. Ladder; 9. Platform pedal; 10. Curved pedal; 11. Connecting rod; 12. Bottom plate; 13. Reinforcement rib; 14. Adjustment plate; 15. Insertion rod; 16. Upright body; 17. Connecting sleeve; 18. Socket; 19. Plug; 20. Cross bar; 21. Bolting hole; 22. Card plug; 23. Connecting rod; 24. Safety net frame; 25. Safety net; 26. Hook; 27. Card slot; 28. Ladder hook; 29. ​​Platform pedal hook; 30. Bolting ear; 31. Platform pedal frame; 32. Install platform pedal hook; 33. Install platform pedal frame; 34. Install platform pedal column. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0038] A square ladder cage with a buckle bracket assembly, comprising four columns 2 as vertical supports at the four corners of the square ladder cage, bases 1 are installed at the bottom of the four columns 2, cross bars 6 are installed between the adjacent columns 2 between the layers of the ladder cage, and pedals for forming inter-layer walkways and work platforms are installed on the cross bars 6. An oblique rod 5 is installed between the outer sides of the two columns 2 of the square ladder cage, a safety net 4 is installed between the two cross bars 6 between the upper and lower layers, and a step ladder 8 forming an up and down passage is installed in the ladder cage; the columns 2 are spliced ​​together by multiple column bodies 16, and each column body 16 is evenly distributed with multiple The connecting plate 3 has a through hole for penetrating the column 16 in the center, and a plurality of bolt holes 21 are provided on the connecting plate 3 on the periphery of the through hole. The column 16 passes through the through hole and is welded to the connecting plate 3. The top of each column 16 is fixed with a connecting sleeve 17 for connecting the two columns 16 in series. The bottom end of the upper column 16 is inserted into the connecting sleeve 17 at the top of the lower column 16. In order to firmly connect, a bolt hole can be provided on the connecting sleeve 17. Bolts are installed in the bolt holes to lock and fix the inserted column 16 and the connecting sleeve 17; the cross bar 6 includes a cross bar body 20 , each end of the crossbar body 20 is provided with a plug 19 for connecting with the connecting plate 3, and the plug 19 is provided with a socket 18 for inserting the connecting plate 3, and the plug 19 is also provided with a bolt hole 21 corresponding to the connecting plate 3; during installation, all the connecting plates 3 on the two column bodies 16, each two connecting plates 3 as a pair, are correspondingly plugged into the plugs 19 at both ends of the crossbar body 20, and then bolts or connecting pins are inserted into the bolt holes 21 to connect the crossbar 6 and the column 2. The operator can use the crossbar 6 as a ladder to climb up and install high components. When reaching the floor height, the diagonal rod 5 is connected to the column 2 is connected and fixed, and the safety net 4 is installed. The safety net is installed and fixed by hanging from above and inserting from below. The diagonal rod 5 is connected and fixed to the column 2, and the safety net 4 is installed. Then the step ladder 8 is installed in the fixed position to complete the construction of the bottom ladder cage frame, and then the pedals are installed; the parts required for the upper ladder cage are moved from the step ladder 8 to the pedals. The crossbar 6 used as a ladder on the bottom layer can be removed as a ladder for climbing to the upper layer as needed, and the N-layer structure of the ladder cage is completed in the same way as the ladder cage frame on the bottom layer, until the top layer. The height of the top layer should be higher than the height of the inter-layer platform of the bridge pier to ensure the safety of personnel operations.

[0039] The safety net 4 includes a safety net frame 24, within which a safety net 25 is disposed. The top of the safety net frame 24 is provided with a hook 26 for hanging on the upper horizontal bar 6, and the bottom of the safety net frame 24 is provided with a slot 27 for inserting into the lower horizontal bar 6. The hook 26 and slot 27 are staggered to prevent interference between the hook 26 and slot 27 when the upper and lower safety nets 4 are installed. An inclined rod 5 is installed on the outside of the safety net 4. Both ends of the inclined rod 5 are also provided with plugs for plugging into the connection plate 3. The plug is provided with a socket for inserting into the connection plate, and the plug is also provided with a bolt connection hole corresponding to the connection plate.

[0040] The upper and lower ends of the step ladder 8 are respectively provided with step ladder hooks 28 for locking with the ladder cage.

[0041] The pedals include an installation platform pedal 7 and a platform pedal 9. The installation platform pedal 7 is arranged at the four corners of the inter-layer platform. A installation platform pedal column 34 is installed in the ladder cage at the four corners of the inter-layer platform. The structure adopted by the installation platform pedal column 34 is consistent with that of the column 2. A connecting plate 3 is also provided. The connecting plate 3 corresponding to the inter-layer platform is connected to the two adjacent cross bars 6 through a connecting rod 11 to form an installation frame for the installation platform pedal 7. The connecting rod 11 includes a connecting rod body 23, one end of the connecting rod body 23 is provided with a card plug 22 for hanging with the cross bar 6, and the other end of the connecting rod body 23 is provided with a plug 19 for bolting to the connecting plate 3; the installation platform pedal 7 includes an installation platform pedal frame 33, and both ends of the installation platform pedal frame 33 are provided with an installation platform pedal hook 32 for connecting with the cross bar 6 and the connecting rod 11. In order to ensure a firm connection, the installation platform pedal frame 33 is hooked and connected with the cross bar 6 and the connecting rod 11, and then tied.

[0042] The platform pedal 9 includes a platform pedal frame 31, and both ends of the platform pedal frame 31 are provided with platform pedal hooks 29 for hanging and installing the platform pedal frame 31. Both sides of the platform pedal frame 31 are respectively provided with bolting ears 30 for splicing, and the cross bar 6 is also provided with corresponding bolting ears 30.

[0043] A curved pedal 10 is provided between the platform pedal 9 and the pier column, and the curved pedal 10 is buckled and fixed to the platform pedal 9 through a buckle provided on the pedal frame.

[0044] The base 1 includes a bottom plate 12 , and a plug rod 15 for plugging with the column 2 is vertically welded at the center of the bottom plate 12 . The plug rod 15 is further reinforced and connected to the bottom plate 12 by a reinforcing rib 13 .

[0045] The insertion rod 15 is also provided with an adjustment plate 14 for adjusting the height of the column 2. A pad can be passed through the insertion rod 15 and placed on the adjustment plate 14 to adjust the columns 2 at the four corners of the square ladder cage to the same horizontal height.

[0046] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A square ladder cage assembled with a buckle bracket, comprising four vertical columns (2) serving as vertical supports at the four corners of the square ladder cage, bases (1) being installed at the bottoms of the four columns (2), cross bars (6) being installed between adjacent columns (2) between layers of the ladder cage, pedals for forming inter-layer walkways and work platforms being installed on the cross bars (6), oblique bars (5) being installed between the outer sides of two vertical columns (2) of the square ladder cage, a safety net (4) being installed between two cross bars (6) between upper and lower layers, and a step ladder (8) forming an upper and lower passage being installed in the ladder cage; characterized in that: The column (2) is formed by splicing together multiple sections of column bodies (16), and multiple connecting plates (3) are evenly distributed on each section of the column body (16). A through hole for penetrating the column body (16) is provided at the center of the connecting plate (3), and multiple bolt holes (21) are provided on the connecting plate (3) around the through hole. The column body (16) is welded and fixed to the connecting plate (3) after passing through the through hole. A bolt for stringing two sections of the column body (16) is fixed on the top of each section of the column body (16). The bottom end of the upper column (16) is inserted into the connecting sleeve (17) at the top of the lower column (16); the cross bar (6) includes a cross bar body (20), and each end of the cross bar body (20) is provided with a plug (19) for connecting with the connecting disk (3), and the plug (19) is provided with a socket (18) for inserting the connecting disk (3), and the plug (19) is also provided with a bolt hole (21) corresponding to the connecting disk (3).

2. The square ladder cage with buckle bracket assembly according to claim 1, characterized in that: The safety net (4) comprises a protection net frame (24), a protection net (25) is arranged in the protection net frame (24), a hook (26) for hanging on the upper layer of horizontal bars (6) is arranged at the top of the protection net frame (24), and a slot (27) for inserting into the lower layer of horizontal bars (6) is arranged at the bottom of the protection net frame (24).

3. The square ladder cage with a buckle bracket assembly according to claim 1, characterized in that: The upper and lower ends of the step ladder (8) are respectively provided with step ladder hooks (28) for locking with the ladder cage.

4. The square ladder cage with buckle bracket assembly according to claim 1, characterized in that: The pedal comprises a mounting platform pedal (7) and a platform pedal (9), wherein the mounting platform pedal (7) is arranged at the four corners of the inter-layer platform, and a mounting platform pedal column (34) is respectively installed in the ladder cage at the four corners of the inter-layer platform, and the mounting platform pedal column (34) is also provided with a connecting plate (3), and the connecting plate (3) corresponding to the inter-layer platform is connected to two adjacent cross bars (6) through a connecting rod (11) to form a mounting frame for the mounting platform pedal (7), and the connecting rod (11) comprises a connecting rod body (23), and the connecting rod One end of the body (23) is provided with a card plug (22) for being hooked with the cross bar (6), and the other end of the connecting rod body (23) is provided with a plug (19) for being bolted to the connecting plate (3); the mounting platform pedal (7) includes a mounting platform pedal frame (33), and both ends of the mounting platform pedal frame (33) are provided with mounting platform pedal hooks (32) for being connected with the cross bar (6) and the connecting rod (11). In order to secure the connection, the mounting platform pedal frame (33) is hooked and fixed to the cross bar (6) and the connecting rod (11).

5. The square ladder cage with buckle bracket assembly according to claim 4, characterized in that: The platform pedal (9) includes a platform pedal frame (31), and both ends of the platform pedal frame (31) are provided with platform pedal hooks (29) for hooking and installing the platform pedal frame (31). Both sides of the platform pedal frame (31) are respectively provided with bolting ears (30) for splicing, and the cross bar (6) is also correspondingly provided with bolting ears (30).

6. The square ladder cage with a buckle bracket assembly according to claim 4 or 5, characterized in that: A curved pedal (10) is provided between the platform pedal (9) and the pier column, and the curved pedal (10) is buckled and fixed to the platform pedal (9) via a buckle provided on the pedal frame.

7. The square ladder cage with buckle bracket assembly according to claim 1, characterized in that: The base (1) comprises a bottom plate (12), a plug rod (15) for plugging into the column (2) is vertically welded at the center of the bottom plate (12), and the plug rod (15) is further reinforced and connected to the bottom plate (12) via a reinforcing rib (13).

8. The square ladder cage with buckle bracket assembly according to claim 7, characterized in that: The insertion rod (15) is also provided with an adjustment plate (14) for adjusting the height of the column (2). A pad can be passed through the insertion rod (15) and placed on the adjustment plate (14) to adjust the columns (2) at the four corners of the square ladder cage to the same horizontal height.

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