A mobile hanging basket for drilling on the outer side of a highway bridge concrete guardrail

CN224799866UActive Publication Date: 2026-09-25CHINA RAILWAY NO 3 GRP CO LTD +1
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Patent Information

Application Number
CN202522226149.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-22
Publication Date
2026-09-25
Estimated Expiration
2035-10-22

AI Technical Summary

Technical Problem

目前国内高速公路桥梁段普遍采用混凝土护栏,需在混凝土护栏外侧壁上埋入后扩底锚栓以安装管线支架,需进行大量的钻孔作业,施工难度高,危险系数大,且施工质量参差不齐

Benefits of technology

1、本实用新型能够在桥梁混凝土护栏上移动,挂篮通过滑轮与桥梁混凝土护栏接触,可实现桥梁外侧钻孔位置标高一致,孔眼在桥梁外侧护栏侧壁的垂直度偏差小,使用此桥梁混凝土护栏外侧钻孔用移动式挂篮仅需一人在桥梁内侧操作,无需人员翻越护栏至外侧进行高空作业,节约了人力,提高了工作效率,提高了桥梁外侧钻孔的施工质量。

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Abstract

The utility model belongs to bridge outside high altitude operation facility technical field, concretely is a kind of highway bridge concrete guardrail outside drilling mobile hanging basket, including the hanging basket of self top-downly being set in guardrail top, pulley for being arranged on the hanging basket is used to move on guardrail, the part of the hanging basket outside guardrail is provided with the drilling machine fixed platform that can be perpendicular to the displacement of guardrail outside surface, drilling machine is installed on the drilling machine fixed platform, the side of the drilling machine fixed platform far from guardrail is rotatably connected with hinged plate, the outside end of hinged plate is rotatably connected with operating pull rod, and the bottom end of operating pull rod is rotatably connected with the hanging basket.The utility model only needs one person to operate in bridge inside, without personnel to leap over guardrail to outside to carry out high altitude operation, saves manpower, improves work efficiency, improves the construction quality of bridge outside drilling.
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Description

Technical Field

[0001] This utility model relates to the technical field of high-altitude operation facilities on the outside of bridges; specifically, this utility model relates to a mobile hanging basket for drilling holes on the outside of concrete guardrails of highway bridges. Background Technology

[0002] Communication systems are an essential component of highway electromechanical installation, crucial for ensuring the highway's communication functionality. Therefore, proper laying of communication pipelines is of paramount importance to highway construction. Highway bridges are typically equipped with pipeline supports, on which polyurethane conduits or steel pipes are installed for laying communication fiber optic cables. Currently, concrete guardrails are commonly used on highway bridges in China. This requires embedding expanded-base anchor bolts into the outer wall of the concrete guardrail to install pipeline supports, necessitating extensive drilling operations. This process is challenging, dangerous, and results in inconsistent construction quality. Drilling is a critical step in the support installation process.

[0003] Traditionally, drilling operations on the outer side of bridges involved workers using handheld drilling machines on a traditional hanging basket with a work platform. To ensure standardized construction, improve efficiency, and enhance safety, more suitable tools and equipment for drilling on the outer side of bridges are needed. Utility Model Content

[0004] In view of this, the present invention provides a movable hanging basket for drilling holes on the outside of concrete guardrails of highway bridges, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0005] To achieve the aforementioned objectives, this utility model provides a movable hanging basket for drilling holes on the outer side of a concrete guardrail of a highway bridge. The basket is fitted from top to bottom onto the top of the guardrail. The basket is equipped with pulleys for moving on the guardrail. A drilling machine fixing platform, capable of displacement perpendicular to the outer side of the guardrail, is installed on the portion of the basket outside the guardrail. A drilling machine is mounted on the drilling machine fixing platform. A hinge plate is rotatably connected to the side of the drilling machine fixing platform away from the guardrail. An operating rod is rotatably connected to the outer end of the hinge plate, and the bottom end of the operating rod is rotatably connected to the hanging basket.

[0006] Preferably, the hanging basket is provided with a load-bearing platform on the inner part of the guardrail, and a counterweight is provided on the load-bearing platform.

[0007] Preferably, the hanging basket includes a top frame and inner and outer uprights fixedly installed on the inner and outer sides of the bottom upright, and the pulleys are arranged on the side of the top frame, inner upright, and outer upright facing the guardrail.

[0008] Preferably, a drilling machine operating platform is fixedly installed on the outer side of the hanging basket, the drilling machine fixed platform is slidably installed on the drilling machine operating platform, and the bottom end of the operating lever is rotatably connected to the drilling machine operating platform.

[0009] Preferably, a pair of limiting blocks are fixedly installed on both sides of the drilling machine working platform, and the drilling machine fixed platform is slidably disposed between the drilling machine working platform and the limiting blocks.

[0010] Preferably, connecting lugs are installed on the outer ends of the drilling machine fixed platform and the drilling machine working platform, and the inner end of the hinge plate and the bottom end of the operating rod are respectively rotatably engaged with two sets of connecting lugs.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects: 1. This utility model can move on the concrete guardrail of a bridge. The hanging basket contacts the concrete guardrail of the bridge through pulleys, which can make the drilling position on the outside of the bridge consistent and the verticality deviation of the hole on the side wall of the guardrail on the outside of the bridge small. With this mobile hanging basket for drilling on the outside of the concrete guardrail of the bridge, only one person needs to operate on the inside of the bridge. There is no need for personnel to climb over the guardrail to the outside for high-altitude work, which saves manpower, improves work efficiency, and improves the construction quality of drilling on the outside of the bridge.

[0012] 2. This utility model can provide a working surface for drilling workers on the outside of highway bridges to work on the inside of the bridge through a drilling operation platform. The drilling machine can be started and stopped by a plug-in board, and the drilling machine can be controlled to drill in and out by pulling the operating lever. The "hanging basket" is stably erected on the concrete guardrail of the bridge to ensure the safety and reliability of the construction operation and the construction quality.

[0013] 3. This utility model has the advantages of simple structure, convenient operation, strong applicability, flexible movement, and safety and reliability. It is suitable for drilling on the outside of concrete guardrails of highway bridges. Attached Figure Description

[0014] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings: Figure 1 This is a schematic diagram of the movable hanging basket for drilling holes on the outer side of the concrete guardrail of a highway bridge according to this utility model. Figure 2 This is a schematic diagram of the movable hanging basket for drilling holes on the outer side of the concrete guardrail of a highway bridge according to this utility model. Figure 3 This is a top view of the drilling machine fixing platform and drilling operation platform of this utility model.

[0015] Reference numerals: 1-Drilling platform; 2-Drilling machine fixed platform; 3-Hinge plate; 4-Connecting ear plate; 5-Limiting block; 6-Operating rod; 7-Drilling machine; 8-Inner upright; 9-Top frame; 10-Outer upright; 11-Pulley; 12-Diagonal brace; 13-Load-bearing platform; 14-Counterweight block. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] like Figures 1 to 3 As shown, this embodiment provides a movable hanging basket for drilling holes on the outside of a concrete guardrail of a highway bridge. It includes a hanging basket that is fitted from top to bottom on the top of the guardrail. The hanging basket is equipped with pulleys 11 for moving on the guardrail. A drilling machine fixing platform 2 that can move perpendicular to the outer side of the guardrail is provided on the part of the hanging basket located outside the guardrail. A drilling machine 7 is installed on the drilling machine fixing platform 2. A hinge plate 3 is rotatably connected to the side of the drilling machine fixing platform 2 away from the guardrail. An operating rod 6 is rotatably connected to the outer end of the hinge plate 3, and the bottom end of the operating rod 6 is rotatably connected to the hanging basket.

[0018] The hanging basket includes a top frame 9 and inner and outer uprights 8 and 10 fixedly installed on the inner and outer sides of the bottom upright. Pulleys 11 are located on the side of the top frame 9, inner upright 8 and outer upright 10 facing the guardrail.

[0019] The top frame 9, inner support frame 8, and outer support frame 10 form a longitudinal movement channel for the bridge concrete guardrail. Each of the top frame 9, inner support frame 8, and outer support frame 10 is equipped with pulleys 11 on one side of the longitudinal movement channel. Specifically, along the longitudinal direction of the bridge concrete guardrail, two sets of pulleys 11 are installed on the middle crossbar of the top frame 9, two sets of pulleys 11 are installed on the middle crossbar of the inner support frame 8, and two sets of pulleys 11 are installed on the middle crossbar and bottom crossbar of the outer support frame 10.

[0020] A drilling machine 7 working platform is fixedly installed on the outer side of the hanging basket, a drilling machine fixing platform 2 is slidably installed on the drilling machine 7 working platform, and the bottom end of an operating pull rod 6 is rotatably connected with the drilling machine 7 working platform. The drilling machine 7 working platform is fixedly installed at the bottom of an outer vertical frame 10. A pair of limiting blocks 5 are fixedly installed on both sides of the drilling machine 7 working platform, and the drilling machine fixing platform 2 is slidably arranged between the drilling machine 7 working platform and the limiting blocks 5. Connecting ear plates 4 are installed on the outer ends of the drilling machine fixing platform 2 and the drilling machine 7 working platform, and the inner end of a hinged plate 3 and the bottom end of the operating pull rod 6 are respectively rotationally fitted with the two groups of connecting ear plates 4.

[0021] The drilling working platform 1 is welded into a square frame by two square steel pipes and two angle steels, the drilling machine fixing platform 2 is horizontally placed in the square frame, and a short angle steel as the limiting block 5 is respectively welded at one-third and two-thirds positions of the two angle steels, which is used for limiting the drilling machine fixing platform 2 so that the drilling machine fixing platform 2 can only move along a direction perpendicular to the outer side wall of a bridge. Two groups of pulleys 11 are installed on the square steel pipe at the inner side of the bridge, and two connecting ear plates 4 are welded at the inner side of the bridge at the middle part of the other square steel pipe.

[0022] The drilling machine fixing platform 2 is welded into a "日"-shaped structure by two long square steel pipes and three short square steel pipes, a vertically placed short square steel pipe is respectively welded above and below the middle short square steel pipe, and the middle short square steel pipe is used for fixing two drilling machines 7. A connecting ear plate 4 is welded at the middle part of the square steel pipe away from the bridge side, and the connecting ear plate 4 is connected with the operating pull rod 6 through the hinged plate 3.

[0023] The drilling machine 7 on the drilling machine fixing platform 2 is fixed by a stainless steel cable tie, a power cord of the drilling machine 7 is fixed on a vertical rod of the outer vertical frame 10 by a cable tie, the power cord is plugged into a power strip with a switch for power taking, and the start and stop of the drilling machine 7 are controlled by the switch on the power strip.

[0024] The operating pull rod 6 is made of a round steel pipe, one radial through hole is respectively arranged at the lower part and the bottom of the round steel pipe, the radial through hole at the bottom is connected with the connecting ear plate 4 of the drilling working platform 1 through a smooth shaft pivot bolt, the radial through hole at the lower part is connected with one end of the hinged plate 3 through a smooth shaft pivot bolt, and the other end of the hinged plate 3 is connected with the connecting ear plate 4 of the drilling machine fixing platform 2 through a smooth shaft pivot bolt. The drilling working platform 1, the drilling machine fixing platform 2 and the operating pull rod 6 form a hinged triangular structure with single degree of freedom, and when the operating pull rod 6 is pulled towards the inner side of the bridge, the drilling machine fixing platform 2 drills towards the inner side of the bridge synchronously.

[0025] Diagonal braces 12 are connected between a top frame 9 and an inner vertical frame 8, between the top frame 9 and the outer vertical frame 10, between the inner vertical frame 8 and a counterweight platform, and between the outer vertical frame 10 and the drilling working platform 1. When the counterweight platform is in use, counterweight blocks 14 shall be configured, the counterweight blocks 14 are placed on the counterweight platform, and the weight of the counterweight blocks 14 exactly balances the weight of the device inside and outside the bridge concrete guardrail.

[0026] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A movable hanging basket for drilling holes on the outer side of a concrete guardrail of a highway bridge, characterized in that, The system includes a hanging basket mounted on top of the guardrail from top to bottom. The hanging basket is equipped with pulleys (11) for moving on the guardrail. A drilling machine fixing platform (2) capable of displacement perpendicular to the outer side of the guardrail is provided on the part of the hanging basket located outside the guardrail. A drilling machine (7) is installed on the drilling machine fixing platform (2). A hinge plate (3) is rotatably connected to the side of the drilling machine fixing platform (2) away from the guardrail. An operating lever (6) is rotatably connected to the outer end of the hinge plate (3), and the bottom end of the operating lever (6) is rotatably connected to the hanging basket.

2. The mobile hanging basket for drilling holes on the outer side of a concrete guardrail of a highway bridge as described in claim 1, characterized in that, The hanging basket is provided with a load-bearing platform (13) on the inner part of the guardrail, and a counterweight (14) is provided on the load-bearing platform (13).

3. The mobile hanging basket for drilling holes on the outer side of a concrete guardrail of a highway bridge as described in claim 1, characterized in that, The hanging basket includes a top frame (9) and an inner frame (8) and an outer frame (10) fixedly installed on the inner and outer sides of the bottom frame. The pulley (11) is located on the side of the top frame (9), the inner frame (8) and the outer frame (10) facing the guardrail.

4. A movable hanging basket for drilling holes on the outer side of a concrete guardrail of a highway bridge as described in claim 1, characterized in that, The outside of the hanging basket is fixedly installed with a drilling machine (7) working platform. The drilling machine fixed platform (2) is slidably installed on the drilling machine (7) working platform, and the bottom end of the operating lever (6) is rotatably connected to the drilling machine (7) working platform.

5. A movable hanging basket for drilling holes on the outer side of a concrete guardrail of a highway bridge as described in claim 4, characterized in that, A pair of limiting blocks (5) are fixedly installed on both sides of the drilling machine (7) working platform, and the drilling machine fixed platform (2) is slidably disposed between the drilling machine (7) working platform and the limiting blocks (5).

6. A movable hanging basket for drilling holes on the outer side of a concrete guardrail of a highway bridge as described in claim 4, characterized in that, Connecting ear plates (4) are installed on the outer ends of the drilling machine fixed platform (2) and the drilling machine (7) working platform. The inner end of the hinge plate (3) and the bottom end of the operating rod (6) are respectively rotatably engaged with the two sets of connecting ear plates (4).