Culvert construction climbing frame
By designing a climbing frame for the cap beam construction, the problem of lack of fixed support during construction was solved, enabling the safe and reliable installation and efficient use of the climbing ladder, thus improving construction safety and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA CONSTR FIRST BUILDING (GRP) CORP LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-12
AI Technical Summary
In existing technologies, when constructing cap beams, workers often lack fixed supports while working at heights, making installation inconvenient, posing high risks, and affecting construction safety and efficiency.
A climbing frame for cap beam construction was designed, including a sliding frame, a telescopic ladder, and a lifting assembly. The sliding frame slides in contact with the cap beam through rollers, and the lifting assembly raises and lowers and fixes the ladder through a winding wheel and ropes. The connecting pipe and the clamping block cooperate to fix the top of the ladder, and the handrail can be used as a safety rope.
It enables safe and reliable installation and fixation of ladders, improves the safety and construction efficiency of high-altitude operations, reduces the workload of cranes, and enhances the reliability and convenience of construction.
Smart Images

Figure CN224351893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction ladder technology, and in particular to a climbing frame for cap beam construction. Background Technology
[0002] A cap beam is a horizontal beam installed on top of a pier in a bridge structure to support, distribute, and transfer the loads of the superstructure. Its main function is to support the superstructure and transfer all loads to the substructure.
[0003] When constructing the cap beam, workers need to climb to heights. In the existing technology, simple ladders are used to go up and down, but they lack fixed support, making installation inconvenient, operation risky, and affecting construction safety and work efficiency. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a climbing frame for girder construction.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A climbing scaffold for beam construction includes a beam and a telescopic ladder. A sliding frame, shaped like an inverted U, is mounted on the upper side of the beam. The telescopic ladder is detachably connected to the sliding frame. The sliding frame includes side frames, telescopic tubes, and handrails. Rollers are provided on the side frames, which are located at both ends of the telescopic tubes and are detachably connected to each other. A connecting pipe is provided on the side frames. A locking block adapted to the connecting pipe is provided at the top of the telescopic ladder. The handrails are correspondingly provided with the telescopic ladder and are equipped with a lifting assembly. The lifting assembly includes a winding wheel, a guide wheel, and a rope, one end of which is detachably connected to the telescopic ladder.
[0007] Preferably, the sliding frame slides in contact with the cover beam via rollers, and the side frame is welded with a figure-eight frame for mounting rollers, and the rollers are provided in multiple sets.
[0008] Preferably, the two end frames are connected in an adjustable manner by a telescopic tube, and the telescopic tube is provided with a positioning bolt.
[0009] Preferably, the side frame includes hanging rods and foot rods. The hanging rods are in the shape of a "7" and there are at least two sets of hanging rods. Multiple sets of foot rods are welded between the hanging rods, and the foot rods are set horizontally.
[0010] Preferably, the telescopic ladder is equipped with a hanging ring, and one end of the rope is equipped with a quick-release device corresponding to the hanging ring. The ropes on both sides of the upper part of the telescopic ladder are distributed in an inverted V-shape.
[0011] Preferably, the winding wheel is rotatably mounted on one side of the handrail, and a guide slide is provided on the other side of the handrail. The guide slide has a slot for mounting the guide wheel. One end of the rope extends past the guide wheel to the winding wheel, and the winding wheel is provided with a drive device and a locking device.
[0012] The beneficial effects of this utility model are as follows:
[0013] Compared with the prior art, this utility model sets a sliding frame on the cover beam, and a lifting component and connecting pipe are configured on the sliding frame. The lifting component raises or lowers the construction equipment, and the connecting pipe works with the locking block to fix the top of the telescopic ladder, so as to safely and reliably complete the assembly and fixation of the telescopic ladder. It is convenient to use. At the same time, the rope of the lifting component can be connected to the safety belt of the construction personnel, which improves the safety and reliability of high-altitude operations. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a climbing scaffold for beam construction proposed in this utility model;
[0015] Figure 2 for Figure 1 A magnified schematic diagram of the local structure at point A;
[0016] Figure 3 This is a schematic diagram of the main structure of a climbing scaffold for beam construction proposed in this utility model;
[0017] Figure 4 This is a schematic diagram of the rope distribution of a climbing scaffold for beam construction proposed in this utility model.
[0018] In the diagram: 1. Cap beam; 2. Sliding frame; 21. Side frame; 22. Telescopic pipe; 23. Roller; 24. Handrail; 25. Connecting pipe; 3. Telescopic ladder; 31. Hanging ring; 32. Locking block; 4. Lifting assembly; 41. Rewinding wheel; 42. Guide wheel; 43. Rope. Detailed Implementation
[0019] 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. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0020] Reference Figure 1-4A climbing frame for cap beam construction includes a cap beam 1 and a telescopic ladder 3. A sliding frame 2 is provided on the upper side of the cap beam 1. The sliding frame 2 is in the shape of an inverted U and is mounted on the cap beam 1. The telescopic ladder 3 can be installed on one or both sides of the cap beam 1. The telescopic ladder 3 is inclined and can be equipped with safety handrails as needed. The bottom of the telescopic ladder 3 is provided with anti-slip blocks. The top of the telescopic ladder 3 is detachably connected to the sliding frame 2 for easy installation and disassembly.
[0021] The sliding frame 2 includes a side frame 21, a telescopic tube 22, and a handrail 24. The side frame 21 is equipped with rollers 23 and a figure-eight frame for mounting the rollers 23 is welded on the side frame 21. Multiple sets of rollers 23 are provided to separate the side frame 21 from the cover beam 1 for easy movement. The side frame 21 is located at both ends of the telescopic tube 22 and is detachably connected to each other. The two side frames 21 are connected to each other through the telescopic tube 22 in an adjustable way. The telescopic tube 22 is equipped with positioning bolts for locking and fixing the telescopic tube 22.
[0022] The side frame 21 includes hanging rods and step rods. The hanging rods are bent into a figure-7 shape and are set to correspond to the right-angle edge of the side of the cap beam 1. There are at least two sets of hanging rods on the side frame 21 to improve the suspension stability. Multiple sets of step rods are welded between the hanging rods. The step rods are set horizontally to strengthen the side frame 21 and facilitate the stepping of construction personnel.
[0023] The lower part of the side frame 21 is provided with a connecting pipe 25, which is correspondingly set with the step bar. The top of the telescopic ladder 3 is provided with a locking block 32 that is compatible with the connecting pipe 25. The locking block 32 is hung on the connecting pipe 25 to support the telescopic ladder 3. According to safety requirements, an anti-detachment device can be set on the locking block 32, which is fixed with pins or bolts to enhance the reliability of the connection between the locking block 32 and the connecting pipe 25. The handrail 24 is correspondingly set with the telescopic ladder 3 to facilitate the construction personnel to go up and down. The handrail 24 is provided with a lifting component 4, which is used to lift the telescopic ladder 3 or as a safety rope to connect the safety belt of the construction personnel.
[0024] The lifting assembly 4 includes a winding wheel 41, a guide wheel 42, and a rope 43. The winding wheel 41 is rotatably mounted on one side of the handrail 24. The winding wheel 41 is equipped with a drive device and a locking device. The drive device is a manual drive wheel or a motor. The locking device is used to lock the winding wheel 41 and restrict its rotation. The other side of the handrail 24 is equipped with a guide slide. The guide slide has slots for mounting the guide wheel 42. The guide wheel 42 slides in the slots to change the suspension position of the rope 43, making it easy to adjust the telescopic ladder 3 and insert the locking block 32 into the connecting pipe 25.
[0025] One end of the rope 43 is detachably connected to the telescopic ladder 3 or to the safety belt of the construction worker. The method of use can be selected according to the construction progress. The telescopic ladder 3 is equipped with a lifting ring 31. One end of the rope 43 is equipped with a quick-release device corresponding to the lifting ring 31. The quick-release structure adopts a hook or shackle. The ropes 43 on both sides of the upper part of the telescopic ladder 3 are distributed in an inverted V-shape to improve the stability of lifting. One end of the rope 43 extends past the guide wheel 42 to the winding wheel 41. The winding wheel 41 is controlled to rotate by a drive device to realize the winding and unwinding of the rope 43.
[0026] In this embodiment, when the construction workers are constructing the cap beam 1, they first use a crane to install the sliding frame 2. The sliding frame 2 slides in contact with the cap beam 1 through the roller 23 and can slide along the cap beam 1 to adjust to a reliable position. The construction workers control the winding wheel 41 to lower the rope 43, connect one end of the rope 43 to the lifting ring 31 with a quick-release device, and the winding wheel 41 retracts the telescopic 43, pulling the top of the telescopic ladder 3 to rise. At the same time, the telescopic ladder 3 is unfolded to facilitate the construction workers to go up and down quickly.
[0027] When construction workers are going up or down, or working on the cap beam 1, they can connect their safety belts to ropes 43. If they slip and fall while working at height, they can be pulled by ropes 43 to improve safety.
[0028] In addition, the lifting assembly 4 can also be used for lifting and transporting tools or materials, reducing the workload of the crane and making construction more convenient.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
Claims
1. A climbing scaffold for constructing a cap beam, comprising a cap beam (1) and a telescopic climbing ladder (3), characterized in that, The upper side of the cover beam (1) is provided with a sliding frame (2). The sliding frame (2) is in the shape of an inverted U and is mounted on the cover beam (1). The telescopic ladder (3) is detachably connected to the sliding frame (2). The sliding frame (2) includes a side frame (21), a telescopic tube (22) and a handrail (24). The side frame (21) is provided with rollers (23). The side frame (21) is located at both ends of the telescopic tube (22) and is detachably connected to it. The side frame (21) is provided with a connecting pipe (25), and the top of the telescopic ladder (3) is provided with a locking block (32) that is compatible with the connecting pipe (25). The handrail (24) is provided corresponding to the telescopic ladder (3). The handrail (24) is provided with a lifting assembly (4). The lifting assembly (4) includes a winding wheel (41), a guide wheel (42) and a rope (43). One end of the rope (43) is detachably connected to the telescopic ladder (3).
2. The climbing scaffold for cap beam construction according to claim 1, characterized in that, The sliding frame (2) slides in contact with the cover beam (1) via rollers (23). The side frame (21) is welded with a figure-eight frame for mounting rollers (23), and the rollers (23) are provided in multiple sets.
3. The climbing scaffold for cap beam construction according to claim 1, characterized in that, The two end frames (21) are connected in an adjustable manner by a telescopic tube (22), and the telescopic tube (22) is provided with positioning bolts.
4. The climbing scaffold for cap beam construction according to claim 1, characterized in that, The side frame (21) includes hanging rods and foot rods. The hanging rods are in the shape of a "7". There are at least two sets of hanging rods. Multiple sets of foot rods are welded between the hanging rods. The foot rods are set horizontally.
5. The climbing scaffold for cap beam construction according to claim 1, characterized in that, The telescopic ladder (3) is provided with a hanging ring (31), and one end of the rope (43) is provided with a quick-release device corresponding to the hanging ring (31). The ropes (43) on both sides of the upper part of the telescopic ladder (3) are distributed in an inverted V-shape.
6. The climbing scaffold for cap beam construction according to claim 5, characterized in that, The winding wheel (41) is rotatably mounted on one side of the handrail (24), and the other side of the handrail (24) is provided with a guide slide, and the guide slide is provided with a slot for mounting the guide wheel (42); The upper end of the rope (43) extends past the guide wheel (42) to the winding wheel (41), and the winding wheel (41) is provided with a drive device and a locking device.