Bridge guardrail hole deepening equipment based on through-wall radar and shield machine principle

By integrating a through-wall radar scanning system, a tunnel boring machine-based cutting system, and a stabilizing device, the problems of misjudgment, low efficiency, drill bit overheating, and unstable fixation in traditional bridge railing hole deepening methods have been solved, achieving precise and efficient hole deepening operations.

CN224348079UActive Publication Date: 2026-06-12CHINA GEZHOUBA GROUP MACHINERY & SHIP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA GEZHOUBA GROUP MACHINERY & SHIP
Filing Date
2025-06-11
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional methods for deepening the holes in bridge railings suffer from problems such as inaccurate judgment, low processing efficiency, easy overheating of drill bits, untimely removal of stone debris, and unstable equipment fixation.

Method used

The bridge railing hole deepening equipment, based on the principles of through-wall radar and tunnel boring machines, integrates a through-wall radar scanning system, a tunnel boring machine cutting system, a water circulation cooling and cleaning system, and a stabilizing and fixing device to achieve precise positioning, improve cutting efficiency, cool the drill bit and clean up rock debris, and ensure the stability of the equipment.

Benefits of technology

It improves the accuracy and efficiency of hole deepening, extends drill bit life, keeps the work area clean, and ensures equipment stability and deepening quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224348079U_ABST
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Abstract

A bridge railing hole deepening device based on through-wall radar and tunnel boring machine (TBM) principles belongs to the technical field of bridge construction equipment. The main body of the device integrates a through-wall radar scanning system, a TBM-based cutting system, a water-circulating cooling and cleaning system, and a stabilizing and fixing device. The through-wall radar scanning system accurately determines the deepening position and depth parameters of the railing holes in the bridge structure through electromagnetic wave scanning and signal processing. The TBM-based cutting system uses a drill bit with a helical cutting edge, driven by a high-power motor. The water-circulating cooling and cleaning system achieves water cooling of the drill bit and immediate removal of stone debris through a water tank, water pump, and hollow channels inside the cutting drill bit. The stabilizing and fixing device includes adjustable support legs and an adsorption device to ensure stable operation of the equipment on the bridge surface. This invention solves the problems of large judgment errors, low efficiency, drill bit overheating, and unstable fixing in traditional deepening operations.
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Description

Technical Field

[0001] This utility model belongs to the field of bridge engineering testing and processing technology, and specifically relates to a bridge railing hole deepening device based on the principle of through-wall radar and shield machine. Background Technology

[0002] In highway bridge construction, the installation of median guardrails is a crucial step in ensuring traffic safety. Whether the depth of the guardrail holes meets design requirements directly affects the stability and safety of the guardrail installation. However, in actual projects, due to construction errors or design changes, the depth of the pre-reserved guardrail holes in the median strip is often insufficient, necessitating their deepening.

[0003] Traditional methods for deepening bridge railing holes typically rely on construction workers' experience or simple measuring tools to determine which holes need deepening and to what depth. This approach is highly subjective and prone to error, easily leading to missed or incorrect assessments, impacting construction efficiency and potentially creating safety hazards. During the deepening process, ordinary hole drills are generally used. These devices have low cutting efficiency, and the drill bit generates significant heat due to friction during prolonged high-speed rotation, causing overheating and wear, shortening its lifespan. Furthermore, the stone debris generated during cutting cannot be promptly cleaned up, accumulating in the work area, affecting construction progress and potentially damaging the surrounding bridge structure and environment. In addition, the traditional methods of fixing deepening equipment on the bridge are not stable enough, easily causing swaying or displacement during operation, affecting the accuracy and quality of the deepening. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a bridge railing hole deepening device based on the principle of through-wall radar and shield machine, so as to solve the problems mentioned in the background art, such as inaccurate judgment, low processing efficiency, easy overheating of drill bit, untimely removal of stone debris and unstable equipment fixation.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A bridge railing hole deepening device based on the principle of through-wall radar and tunnel boring machine includes a main body, on which a through-wall radar scanning system, a tunnel boring machine cutting system, a water circulation cooling and cleaning system and a stabilizing and fixing device are integrated.

[0007] The through-wall radar scanning system is used to scan the bridge structure and determine the depth requirements and parameters of the guardrail openings; the shield tunneling machine principle cutting system is used to perform the opening depth operation.

[0008] The water circulation cooling and cleaning system is used to cool the cutting parts and clean up stone chips;

[0009] The stabilizing and fixing device is used to securely install the main body of the equipment onto the bridge surface.

[0010] Preferably, the through-wall radar scanning system includes a through-wall radar scanning module and a signal processing unit installed at the front end of the main body of the equipment. The through-wall radar scanning module is electrically connected to the signal processing unit, and the output end of the signal processing unit is connected to the equipment control system for transmitting the hole location and depth parameters after scanning and analysis to the control system.

[0011] Preferably, the shield machine principle cutting system includes a drive device and a cutting drill bit. The drive device is a motor located in the middle of the main body of the equipment. The cutting drill bit is coaxially connected to the output end of the drive device. The outer peripheral wall of the cutting drill bit is provided with a spiral cutting edge. The cutting drill bit has a through hollow channel inside. The inlet of the hollow channel is connected to the water inlet pipe of the water circulation cooling and cleaning system, and the outlet is connected to the water outlet pipe.

[0012] Preferably, the spiral cutting edge is made of cemented carbide material, with a helix angle of 30°-60° and a cutting edge thickness of 5-10mm.

[0013] Preferably, the water circulation cooling and cleaning system includes a water tank, a water pump, an inlet pipe, and an outlet pipe; the water tank is fixed to the side of the main body of the equipment and has a water filtration device inside; the input end of the water pump is connected to the water tank, and the output end is connected to one end of the inlet pipe, and the other end of the inlet pipe passes through the main body of the equipment and is connected to the hollow channel opening of the cutting drill bit; the outlet pipe is connected to the outlet of the hollow channel, and the other end extends to the stone slag collection device of the main body of the equipment.

[0014] Preferably, the stabilizing and fixing device includes adjustable support legs disposed at the lower part of the equipment body and adsorption devices on both sides; the adjustable support legs are hydraulically or screw-driven telescopic structures; the adsorption devices are vacuum suction cups or electromagnetic suction cups, which are hinged to the equipment body.

[0015] Preferably, a control panel is provided on the surface of the main body of the equipment. The control panel integrates a display screen, operation buttons and a data interface. The control panel is electrically connected to the through-wall radar scanning system, the shield machine principle cutting system and the water circulation cooling and cleaning system, respectively, and is used to input control parameters and display the operating status of the equipment.

[0016] Preferably, the water filtration device has a multi-layer filter structure, including a coarse filter layer and a fine filter layer. The pore size of the coarse filter layer is 0.5-1mm, and the pore size of the fine filter layer is 50-100μm.

[0017] The present invention can achieve the following beneficial effects:

[0018] This utility model relates to a bridge railing hole deepening device based on the principles of through-wall radar and tunnel boring machines. The through-wall radar scanning system accurately determines the location and depth of the railing holes to be deepened within the bridge structure, avoiding the subjectivity and errors of traditional methods and improving processing accuracy and efficiency. The cutting drill bit, designed using the principles of tunnel boring machines, features a spiral cutting edge that effectively improves cutting efficiency and reduces cutting resistance. A water-circulating cooling and cleaning system cools the drill bit, preventing overheating and wear, and promptly removes stone debris generated during cutting, maintaining a clean working area. A stable fixing device ensures the equipment is securely fixed on the bridge, improving the precision and quality of the deepening operation. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is the control flowchart of the device of this utility model.

[0022] In the diagram: 1-Main body of the equipment, 2-Through-wall radar scanning module, 3-Signal processing unit, 4-Drive device, 5-Cutting drill bit, 6-Water tank, 7-Water pump, 8-Inlet pipe, 9-Outlet pipe, 10-Adjustable support leg, 11-Adsorption device, 12-Control panel, 13-Helical cutting edge, 14-Hollow channel, 15-Water filtration device. Detailed Implementation

[0023] Preferred solutions include Figures 1 to 2 As shown, a bridge railing hole deepening device based on the principle of through-wall radar and tunnel boring machine includes a main body 1, which is equipped with a through-wall radar scanning system, a tunnel boring machine principle cutting system, a water circulation cooling and cleaning system, and a stabilizing and fixing device.

[0024] The through-wall radar scanning system includes a through-wall radar scanning module 2 installed at the front end of the main body 1 and a signal processing unit 3 electrically connected to it. The through-wall radar scanning module 2 emits electromagnetic waves to scan the bridge body, receives the reflected echoes, and transmits the signals to the signal processing unit 3. After analysis and processing, the signal processing unit 3 determines the location of the guardrail holes, whether they need to be deepened, and the depth of deepening, and transmits the information to the equipment's control system.

[0025] The shield tunneling machine's cutting system includes a drive unit 4 located in the middle of the main body 1 and a cutting drill bit 5 connected to the output end of the drive unit 4. The drive unit 4 is a high-power motor that drives the cutting drill bit 5 to rotate. The spiral cutting edge 13 on the outer peripheral wall of the cutting drill bit 5 is made of cemented carbide and has a hollow channel 14 inside.

[0026] The water circulation cooling and cleaning system includes a water tank 6, a water pump 7, an inlet pipe 8, and an outlet pipe 9. The water tank 6 is installed on one side of the main body 1 of the equipment and has a water filtration device 15 inside. The water pump 7 delivers the cooling water in the water tank 6 to the hollow channel 14 of the cutting drill bit 5 through the inlet pipe 8. The cooling water flows out of the cutting drill bit 5 to cool the drill bit and carries away stone chips and debris through the outlet pipe 9 to the collection device.

[0027] The stabilizing and fixing device includes multiple adjustable support legs 10 installed at the bottom of the main body 1 and adsorption devices 11 installed on both sides of the main body 1. The adjustable support legs 10 adjust their height according to the bridge surface to make the main body 1 horizontal and stable; the adsorption devices 11 use vacuum adsorption to firmly adsorb the main body 1 onto the bridge.

[0028] The main body of the equipment 1 is also equipped with a control panel 12, which is electrically connected to each system. Operators can set and adjust equipment parameters through the control panel 12.

[0029] The helical cutting edge of the cutting drill bit is made of a high-strength wear-resistant material, such as cemented carbide, to improve the service life and cutting performance of the cutting edge.

[0030] The water tank is equipped with a water filtration device, which can filter the cooling water to prevent impurities from clogging the pipes and the hollow channels of the cutting drill bit.

[0031] Working principle:

[0032] In use, the equipment is moved to the location on the median strip of the bridge where the guardrail holes need to be deepened. The height and level of the main body 1 are adjusted using the adjustable support legs 10. The adsorption device 11 is then activated to firmly attach the equipment to the bridge. The through-wall radar scanning system is activated, and the through-wall radar scanning module scans the area. The signal processing unit 3 analyzes and processes the signal to determine the location and depth of the holes to be deepened and transmits the information to the control system. According to the instructions of the control system, the drive device 4 is activated, driving the cutting drill bit 5 to rotate. Simultaneously, the water circulation cooling and cleaning system is activated, and the water pump 7 delivers cooling water from the water tank 6 to the hollow channel 14 of the cutting drill bit 5 to cool the drill bit and remove stone debris. The operator monitors the equipment's working status in real time through the control panel 12 and adjusts various parameters as needed to ensure the accuracy and efficiency of the deepening operation.

[0033] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A bridge railing hole deepening device based on the principles of through-wall radar and tunnel boring machine, characterized in that: The equipment includes a main body (1), on which a through-wall radar scanning system, a shield machine principle cutting system, a water circulation cooling and cleaning system, and a stabilizing and fixing device are integrated; The through-wall radar scanning system is used to scan the bridge structure and determine the depth requirements and parameters of the guardrail openings; the shield tunneling machine principle cutting system is used to perform the opening depth operation. The water circulation cooling and cleaning system is used to cool the cutting parts and clean up stone chips; The stabilizing and fixing device is used to securely install the main body of the equipment (1) onto the bridge surface.

2. The bridge railing hole deepening device based on the principle of through-wall radar and tunnel boring machine as described in claim 1, characterized in that: The through-wall radar scanning system includes a through-wall radar scanning module (2) and a signal processing unit (3) installed at the front end of the main body (1). The through-wall radar scanning module (2) and the signal processing unit (3) are electrically connected. The output end of the signal processing unit (3) is connected to the signal of the equipment control system, and is used to transmit the hole location and depth parameters after scanning and analysis to the control system.

3. The bridge railing hole deepening device based on the principle of through-wall radar and tunnel boring machine as described in claim 1, characterized in that: The shield machine principle cutting system includes a drive device (4) and a cutting drill bit (5). The drive device (4) is a motor located in the middle of the main body (1) of the equipment. The cutting drill bit (5) is coaxially connected to the output end of the drive device (4). The outer peripheral wall of the cutting drill bit (5) is provided with a spiral cutting edge (13). The cutting drill bit (5) has a through hollow channel (14) inside. The inlet of the hollow channel (14) is connected to the water inlet pipe of the water circulation cooling and cleaning system, and the outlet is connected to the water outlet pipe.

4. A bridge railing hole deepening device based on the principle of through-wall radar and tunnel boring machine as described in claim 3, characterized in that: The spiral cutting edge (13) is made of cemented carbide material, with a helix angle of 30°-60° and a cutting edge thickness of 5-10mm.

5. A bridge railing hole deepening device based on the principle of through-wall radar and tunnel boring machine as described in claim 1, characterized in that: The water circulation cooling and cleaning system includes a water tank (6), a water pump (7), an inlet pipe (8), and an outlet pipe (9); the water tank (6) is fixed to the side of the main body of the equipment (1) and has a water filtration device (15) installed inside; the input end of the water pump (7) is connected to the water tank (6), and the output end is connected to one end of the inlet pipe (8); the other end of the inlet pipe (8) passes through the main body of the equipment (1) and is connected to the hollow channel (14) of the cutting drill bit (5); the outlet pipe (9) is connected to the outlet of the hollow channel (14) and the other end extends to the stone slag collection device of the main body of the equipment (1).

6. A bridge railing hole deepening device based on the principle of through-wall radar and tunnel boring machine as described in claim 1, characterized in that: The stabilizing and fixing device includes an adjustable support leg (10) located at the lower part of the equipment body (1) and adsorption devices (11) on both sides; the adjustable support leg (10) is a telescopic structure driven by hydraulic or screw; the adsorption device (11) is a vacuum suction cup or an electromagnetic suction cup, which is hinged to the equipment body (1).

7. A bridge railing hole deepening device based on the principle of through-wall radar and tunnel boring machine as described in claim 1, characterized in that: The main body (1) of the equipment is provided with a control panel (12). The control panel (12) integrates a display screen, operation buttons and data interface. The control panel (12) is electrically connected to the through-wall radar scanning system, the shield machine principle cutting system and the water circulation cooling and cleaning system, respectively, and is used to input control parameters and display the operating status of the equipment.

8. A bridge railing hole deepening device based on the principle of through-wall radar and tunnel boring machine as described in claim 5, characterized in that: The water filtration device (15) has a multi-layer filter structure, including a coarse filter layer and a fine filter layer. The pore size of the coarse filter layer is 0.5-1mm, and the pore size of the fine filter layer is 50-100μm.