Combined ladder stand for steel structure

Abstract

The utility model discloses a combined ladder stand for a steel structure. The combined ladder stand comprises a fixing piece detachably installed on a steel pipe, cantilever supporting pieces detachably installed on the fixing piece, a ladder stand frame detachably arranged at the cantilever ends of the multiple cantilever supporting pieces, and armrest frames detachably installed on the two sides of the ladder stand frame through connecting pieces. And the two armrest frames and the ladder stand frame form a ladder stand structure. The ladder stand can be convenient for maintenance operators to move on a steel structure, and is simple and compact in structure, convenient to assemble and disassemble, small in occupied space, long in service life and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of ladders, in particular to a combined ladder for steel structures. Background Art

[0002] When carrying out construction and maintenance in high-altitude environments such as steel canopies, it is difficult for people to access them due to their complex structures, lack of reliable safety measures, and lack of maintenance space. During operations, maintenance walkways and safety ropes are required. On the one hand, it is expensive to set up maintenance walkways on steel structures. On the other hand, the maintenance walkways need to be welded to the steel structures, and corrosion is prone to occur at the welding positions, affecting the service life. The invention patent with publication number CN116241170A discloses a safe and stable steel structure construction ladder, including a column, a ladder and a connecting piece, the connecting piece is fixed on the column, and a hanging structure is provided at the end of the ladder, and the ladder is hung on the connecting piece through the hanging structure; a locking structure is provided on the hanging structure, and a limiting structure is also provided on the connecting piece, the locking structure and the limiting structure are respectively used for limiting and locking the ladder on the connecting piece, and a limiting structure for limiting the hung ladder and a locking structure for locking the ladder are provided on the connecting piece. The ladder is fixed to the steel structure by means of binding belts, which avoids the corrosion caused by welding, but it cannot be installed for a long time, has a relatively short service life, has a high enclosure cost, and has no lateral protection structure, and has poor safety. Utility Model Content

[0003] The utility model aims to provide a combined ladder for steel structures, which can facilitate maintenance operators to move on the steel structure, has a simple and compact structure, is easy to load and unload, occupies little space, has a long service life and is highly practical.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A combined ladder for a steel structure includes a fixing piece detachably mounted on a steel pipe, a cantilever support piece detachably mounted on the fixing piece, a ladder frame detachably provided at the cantilever ends of a plurality of the cantilever support pieces, and handrail frames detachably mounted on both sides of the ladder frame via connecting pieces; the two handrail frames and the ladder frame form a ladder structure.

[0006] Preferably, the connecting member includes a support block fixedly mounted on the side of the ladder frame, a connecting rod slidably mounted on the support block, and a spring arranged between the connecting rod and the support block. When the handrail frame is mounted on the support block, the connecting rod connects the handrail frame to the support block.

[0007] Preferably, a slideway is provided on the support block, and the connecting rod is slidably installed in the slideway, with one end of the connecting rod exposed outside the support block.

[0008] Preferably, the fixing member is a steel hoop that is adapted to the outer diameter of the steel pipe, a support plate is fixedly provided on the outer side of the steel hoop, and the cantilever support member is mounted on the support plate.

[0009] Preferably, the cantilever support member is a channel steel.

[0010] Preferably, the ladder frame is formed by splicing a plurality of ladder units.

[0011] Preferably, the handrail frame includes multiple basic support rods, top rods slidably installed in the basic support rods and handrail rods fixedly installed at one end of the multiple top rods. Connecting holes are provided on the basic support rods and the top rods, and pins are provided in the connecting holes. The relative installation position between the basic support rods and the top rods is adjusted by the pins.

[0012] Preferably, transfer rods are fixedly provided at the top and bottom of the ladder frame, and the ladder frame is staggeredly provided at the cantilevered ends of the transfer rods.

[0013] In the present invention, the ladder is assembled and connected as a whole, and has strong disassembly and reusability, which is convenient for transportation and storage. After being assembled on the steel structure, it takes up little space. The cantilever support members can separate the ladder frame from the steel structure, which is convenient for installation and walking of operators. The handrails provided improve the lateral protection capability, and the handrails can also be adjusted in height, taking up less space and having strong adaptability. The handrails can be quickly disassembled, which improves the convenience of loading and unloading. The conversion rod provided can be used to install another ladder frame in a displaced manner, which is convenient for climbing complex steel structures, and can also serve as a side step, which can facilitate workers to exchange positions at high altitudes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is an enlarged schematic diagram of the local structure of the utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the connector structure of the utility model;

[0017] In the figure: 1. Steel pipe; 2. Fixing part; 3. Cantilever support member; 4. Support plate; 5. Ladder frame; 6. Connecting part; 7. Handrail frame; 8. Transfer support rod; 60. Support block; 61. Connecting rod; 62. Spring; 63. Slide; 70. Basic support rod; 71. Top rod; 72. Handrail rod; 73. Pin. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] like Figure 1 、 Figure 2 and Figure 3 The illustrated modular ladder for steel structures includes a fixing member 2 detachably mounted on a steel pipe 1, with a cantilever support member 3 detachably mounted on the fixing member 2. The fixing member 2 is a steel hoop adapted to the outer diameter of the steel pipe 1. A support plate 4 is welded to the outer side of the hoop. The cantilever support member 3 is bolted to the support plate 4. The surfaces of the cantilever support member 3, the fixing member 2, and the support plate 4 are all coated with an anti-corrosion galvanized layer, giving the ladder excellent corrosion resistance. The cantilever support member 3 is specifically made of channel steel. The steel hoop is detachably mounted on the steel pipe 1 using fasteners.

[0020] The ladder frame 5 is detachably provided at the cantilevered ends of the multiple cantilevered support members 3 by means of bolts. The ladder frame 5 is formed by splicing a plurality of ladder units. The ladder frame 5 is arranged along the steel pipe 1 and can be used as a vertical ladder as well as a horizontal or oblique horseway. It has good versatility. The ladder frame 5 is formed by welding and splicing square steel pipes or angle steels. An anti-corrosion galvanized layer is provided on the outer surface of the ladder frame 5, so that the ladder frame 5 has good anti-corrosion ability.

[0021] Handrails 7 are removably mounted on either side of the ladder frame 5 via connectors 6; the two handrails 7 and the ladder frame 5 form a ladder structure. Connectors 6 include support blocks 60 fixedly mounted on the sides of the ladder frame 5 via fasteners, connecting rods 61 slidably mounted on the support blocks 60, and springs 62 disposed between the connecting rods 61 and the support blocks 60. When the handrails 7 are mounted on the support blocks 60, the connecting rods 61 connect the handrails 7 to the support blocks 60. Specifically, slideways 63 are provided on the support blocks 60, and the connecting rods 61 are slidably mounted within the slideways 63, with one end of the connecting rods 61 exposed outside the support blocks 60. A connecting hole that is compatible with the armrest frame 7 is provided on the support block 60, and the armrest frame 7 is installed in the connecting hole. One end of the connecting rod 61 is located in the connecting hole under the action of the spring 62. A mounting hole that is compatible with the connecting rod 61 is provided on the armrest frame 7. When the armrest frame 7 is installed in the connecting hole, the connecting rod 61 is squeezed to compress the spring 62. When the connecting rod 61 corresponds to the mounting hole, the connecting rod 61 is inserted into the mounting hole through the action of the spring 62 to achieve automatic connection. When disassembly is required, the operator pulls the connecting rod 61 to separate the connecting rod 61 from the mounting hole, which can be quickly disassembled.

[0022] The handrail frame 7 includes multiple basic support rods 70, top rods 71 slidably installed in the basic support rods 70 and handrail rods 72 fixedly installed at one end of the multiple top rods 71. Connecting holes are provided on the basic support rods 70 and the top rods 71, and latches 73 are provided in the connecting holes. The relative installation position between the basic support rods 70 and the top rods 71 is adjusted by the latches 73 to achieve height adjustment of the handrail frame 7. It has better protection ability when in use and can reduce the occupied space when not in use without affecting the layout of the steel structure.

[0023] Adapter rods 8 are welded to the top and bottom of the ladder frame 5, and another ladder frame 5 is offset at the cantilevered end of the adapter rod 8. This adapts to steel pipes 1 arranged at different angles, allowing the ladder structure to be arranged throughout the entire steel structure system. Traditional ladders require one person to climb up and down, and if a conflict arises, one person must retreat to the nearest steel structure to complete the position change. In this application, the adapter rod 8 can also be used as a temporary standing position, making it easier for workers to stagger and exchange positions.

[0024] The above embodiments are merely some descriptions of the concept and implementation of the present invention, and are not intended to limit the present invention. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A combined ladder for steel structures, characterized by: The invention comprises a fixing member (2) detachably mounted on a steel pipe (1), a cantilever support member (3) detachably mounted on the fixing member (2), a ladder frame (5) detachably arranged at the cantilever ends of a plurality of the cantilever support members (3), and handrail frames (7) detachably mounted on both sides of the ladder frame (5) via connecting members (6); the two handrail frames (7) and the ladder frame (5) form a ladder structure.

2. The combined ladder for steel structure according to claim 1, characterized in that: The connecting member (6) comprises a support block (60) fixedly mounted on the side of the ladder frame (5), a connecting rod (61) slidably mounted on the support block (60), and a spring (62) arranged between the connecting rod (61) and the support block (60). When the handrail frame (7) is mounted on the support block (60), the connecting rod (61) connects the handrail frame (7) to the support block (60).

3. The combined ladder for steel structure according to claim 2, characterized in that: A slideway (63) is provided on the support block (60), and the connecting rod (61) is slidably mounted in the slideway (63), with one end of the connecting rod (61) exposed outside the support block (60).

4. The combined ladder for steel structure according to claim 1 or 3, characterized in that: The fixing member (2) is a steel hoop having an outer diameter adapted to the steel pipe (1), a support plate (4) is fixedly arranged on the outer side of the steel hoop, and the cantilever support member (3) is mounted on the support plate (4).

5. The combined ladder for steel structure according to claim 1, characterized in that: The cantilever support member (3) is a channel steel.

6. The combined ladder for steel structure according to claim 1, characterized in that: The ladder frame (5) is formed by splicing together a plurality of ladder units.

7. The combined ladder for steel structure according to claim 1, characterized in that: The handrail frame (7) comprises a plurality of basic support rods (70), a top rod (71) slidably mounted in the basic support rods (70), and a handrail rod (72) fixedly mounted on one end of the plurality of top rods (71). Connecting holes are provided on the basic support rods (70) and the top rods (71), and latches (73) are provided in the connecting holes. The relative mounting position between the basic support rods (70) and the top rods (71) is adjusted by the latches (73).

8. The combined ladder for steel structure according to claim 1 or 7, characterized in that: Transfer support rods (8) are fixedly arranged at the top and bottom of the ladder frame (5), and the ladder frame (5) is staggeredly arranged at the cantilevered end of the transfer support rods (8).

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