A tunnel wall detection device

Abstract

The utility model discloses a tunnel wall detection device relates to tunnel engineering detection technical field, including shell, ultrasonic probe, probe clamping mechanism and injection material smearing mechanism, probe clamping mechanism installs in the inside shell, including first electric push rod, push board, connecting plate and clamping block, the slider of clamping block inboard is connected in the slide rail of shell inner bottom wall, is used for clamping ultrasonic probe, injection material smearing mechanism is fixed on the upper portion of shell, including reagent box, sealing piston, second electric push rod and drum. The utility model solves the problem of low efficiency of manual smearing coupling agent and inconvenient probe replacement, and injection material smearing mechanism can automatic continuous smearing coupling agent, improves the detection efficiency, and probe clamping mechanism can quickly clamp and replace the probe, improves the applicability of device and detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering inspection technology, and in particular to a tunnel wall inspection device. Background Technology

[0002] As a critical infrastructure, tunnels are used in complex underground environments for a long time. The lining structure is prone to defects such as cracks and voids, which threaten traffic safety. Therefore, it is necessary to regularly inspect the health of the tunnel walls.

[0003] Ultrasonic testing is a commonly used method for non-destructive testing of tunnel walls. The technology involves emitting ultrasonic waves into the tunnel wall using an ultrasonic probe and receiving the echoes to analyze its internal structure. However, to ensure effective transmission of the ultrasonic signal, a coupling agent must be filled between the probe and the rough tunnel wall surface to eliminate air gaps and ensure accurate test data. In current field testing practices, the coupling agent is manually applied to the testing path using brushes or other tools. This method reveals significant shortcomings when dealing with large areas like tunnel walls, which are often vertical or inclined surfaces. Firstly, manual application is inefficient, labor-intensive, and makes it difficult to ensure the uniformity and continuity of the coupling agent application. Secondly, workers need to hold the probe in one hand and apply the agent with the other, or frequently interrupt the testing process to apply it, which severely impacts testing efficiency and data reliability.

[0004] Therefore, this utility model proposes a tunnel wall detection device to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems that existing tunnel wall inspection devices rely on manual application of coupling agent during inspection, such as low efficiency, uneven application, and easy interruption of the inspection process, this utility model aims to provide a tunnel wall inspection device with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a tunnel wall detection device, including: a housing, an ultrasonic probe disposed on the front side of the housing, and a probe clamping mechanism installed inside the housing.

[0007] The tunnel wall detection device also includes a material injection and application mechanism. The probe clamping mechanism includes at least two clamping blocks and a first electric push rod for driving the clamping blocks to move. The clamping blocks are used to clamp the ultrasonic probe. The material injection and application mechanism includes a reagent kit fixed to the upper part of the outer shell, a sealing piston slidably disposed inside the reagent kit, and a second electric push rod mounted on the outer shell. The output end of the second electric push rod is fixedly connected to the sealing piston and a roller rotatably disposed at the front end of the reagent kit. The reagent kit has an infusion hole facing the roller.

[0008] Preferably, the probe clamping mechanism further includes a slide rail fixedly connected to the bottom wall of the housing and a slider fixedly connected to the inside of the clamping block. The slider is slidably connected to the slide rail, and this sliding engagement provides a stable guide for the opening and closing of the clamping block.

[0009] Preferably, the probe clamping mechanism further includes a push plate connected to the output end of the first electric push rod and a connecting plate rotatably connected between the push plate and the clamping block. The push plate and the connecting plate constitute a transmission linkage structure that converts the linear motion of the push rod into the clamping action of the clamping block.

[0010] Preferably, in the scheme with a slide rail, the probe clamping mechanism further includes a fixing block fixed to the bottom wall of the housing, the slide rail is located on the front side of the fixing block, and the fixing block provides a limiting reference for the movement of the clamping block.

[0011] Preferably, in the scheme with a push plate, the probe clamping mechanism further includes a guide rod, and the push plate is slidably connected to the guide rod. The guide rod ensures the stability and directionality of the push plate during reciprocating motion.

[0012] Preferably, the dispensing and coating mechanism also includes a mounting plate, on which the second electric push rod and the reagent kit are mounted. The mounting plate provides an integrated mounting platform for the various components of the dispensing and coating mechanism.

[0013] Preferably, the injection and application mechanism further includes a pair of end plates fixed to the front end of the reagent kit, and a roller rotatably connected between the pair of end plates, so that the roller can rotate freely around the axis to apply the coupling agent.

[0014] Preferably, the reagent kit has an injection port, which facilitates the replenishment of the consumed coupling agent into the reagent kit.

[0015] Preferably, a handle is fixed to the rear side of the casing. The handle is designed in accordance with ergonomics, making it convenient for staff to hold the equipment for long-term testing operations.

[0016] This utility model has the following beneficial effects: 1. This utility model solves the problems of low efficiency, uneven application, and easy interruption of detection in the prior art by setting up an injection and coating mechanism, using a second electric push rod to drive a sealing piston to squeeze the coupling agent in the reagent kit onto the surface of the roller, and coating by the rolling of the roller.

[0017] 2. This utility model, by setting up a probe clamping mechanism, uses a first electric push rod to drive the push plate, connecting plate and clamping block to work together, and with the guidance of the slider and slide rail, realizes the automatic clamping and release of the ultrasonic probe, which solves the problems of inconvenient probe fixing, difficult replacement and difficulty in adapting to different curved surfaces or crack widths in the prior art.

[0018] 3. This utility model solves the problems of single function, scattered structure and cumbersome operation of existing detection equipment by integrating the probe clamping mechanism and the material application mechanism into the same housing and providing a handle for easy gripping. Attached Figure Description

[0019] Figure 1 This is a perspective view of a tunnel wall detection device proposed in this utility model; Figure 2 This is a schematic diagram of the probe clamping mechanism of a tunnel wall detection device proposed in this utility model; Figure 3 This is a partial structural exploded view of the probe clamping mechanism of a tunnel wall detection device proposed in this utility model; Figure 4 This is a schematic diagram of the material injection and coating mechanism of a tunnel wall detection device proposed in this utility model; Figure 5 This is a partial structural cross-sectional view of a tunnel wall detection device proposed in this utility model.

[0020] Legend: 1. Outer shell; 2. Probe clamping mechanism; 201. First electric push rod; 202. Push plate; 203. Guide rod; 204. Connecting plate; 205. Clamping block; 206. Slider; 207. Slide rail; 208. Fixing block; 3. Injection and application mechanism; 301. Mounting plate; 302. Second electric push rod; 303. Reagent kit; 304. Injection port; 305. Sealing piston; 306. Infusion port; 307. End plate; 308. Roller; 4. Ultrasonic probe; 5. Handle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Example: Please refer to Figures 1 to 5 This utility model provides a tunnel wall detection device, which aims to solve the problems in the prior art where tunnel wall detection relies on manual application of coupling agent, resulting in low efficiency, uneven application, inconvenient probe replacement, and difficulty in adapting to different detection surfaces.

[0023] like Figure 1As shown, the tunnel wall detection device includes a housing 1, which serves as the mounting carrier for the entire device. A probe clamping mechanism 2 is installed inside the housing 1 and is used to clamp and fix the ultrasonic probe 4. An injection and application mechanism 3 is fixed to the upper part of the housing 1 and is used to apply coupling agent to the surface of the tunnel wall. The ultrasonic probe 4 is located on the front side of the housing 1 and is clamped by the probe clamping mechanism 2. The ultrasonic probe 4 is used to emit and receive ultrasonic waves to detect the depth of cracks. A handle 5 is fixed to the rear side of the housing 1, which makes it easy for workers to hold the entire device.

[0024] The probe clamping mechanism 2 is described in detail below; please refer to [link / reference]. Figure 2 and Figure 3 The probe clamping mechanism 2 includes at least two clamping blocks 205 and a first electric push rod 201 for driving the clamping blocks 205 to move. The probe clamping mechanism 2 also includes a slide rail 207, which is fixedly connected to the inner bottom wall of the housing 1. A slider 206 is fixedly connected to the inner side of the clamping blocks 205 and slidably connected within the slide rail 207. The probe clamping mechanism 2 also includes a fixing block 208, which is fixed to the inner bottom wall of the housing 1. The slide rail 207 is located on the front side of the fixing block 208. The output end of the push rod 201 is connected to the push plate 202. The probe clamping mechanism 2 also includes a guide rod 203. The push plate 202 is slidably connected to the guide rod 203. The connecting plate 204 is rotatably connected between the push plate 202 and the clamping block 205. This structure allows the push plate 202 to slide on the guide rod 203 when the first electric push rod 201 drives the push plate 202 to drive the clamping block 205 through the connecting plate 204. The slider 206 on the clamping block 205 slides in the slide rail 207 to achieve clamping or releasing of the ultrasonic probe 4.

[0025] As a preferred embodiment, please refer to Figure 4 The filling and coating mechanism 3 also includes a mounting plate 301. The second electric push rod 302 and the reagent kit 303 are both mounted on the mounting plate 301. The output end of the second electric push rod 302 is fixedly connected to a sealing piston 305, which is slidably disposed inside the reagent kit 303.

[0026] Furthermore, as another preferred embodiment, please refer to... Figure 4 and Figure 5 The reagent kit 303 has an injection port 304 and an infusion hole 306 facing the roller 308.

[0027] Furthermore, as another preferred embodiment, please refer to... Figure 4 The filling and coating mechanism 3 also includes a pair of end plates 307, which are fixed to the front end of the reagent kit 303, and the roller 308 is rotatably connected between the pair of end plates 307.

[0028] Working principle: Before detecting cracks in the tunnel wall, the ultrasonic probe 4 is placed in the hole on the front side of the outer casing 1, between the clamping blocks 205 on both sides. Then, the first electric push rod 201 is activated. The first electric push rod 201 drives the push plate 202 connected to the output end to retract backward. The push plate 202 slides on the guide rod 203 and moves backward. When the push plate 202 moves backward, it pulls the connecting plate 204, which is rotatably connected to it, to move backward in sync. Since the slider 206 inside the clamping block 205 slides in the slide rail 207 in front of the fixed block 208, and the fixed block 208 is fixed on the inner bottom wall of the outer casing 1, the backward movement of the connecting plate 204 will apply a rotational force to the rear side of the clamping block 205 in the direction of the fixed block 208, causing the clamping block 205 to move closer to the fixed block 208, clamping and fixing the ultrasonic probe 4. The probe clamping mechanism 2 allows the staff to change ultrasonic probes 4 of different intensities according to the different curvature of the tunnel wall and the width of the cracks. When detecting cracks in the tunnel wall, an appropriate amount of coupling agent is first added to the reagent kit 303 through the injection port 304. The operator holds the handle 5 and places the device tightly below the crack, so that the roller 308 contacts the tunnel wall. Then, the second electric push rod 302, which is mounted on the mounting plate 301, is activated. The extension of the second electric push rod 302 drives the sealed piston 305, which is fixedly connected to it, to move slowly forward in the reagent kit 303, squeezing the coupling agent through multiple infusion holes 306 onto the surface of the roller 308, which is rotatably connected between a pair of end plates 307. Then, the device is pushed upward, and the roller 308 rotates due to friction, evenly applying the coupling agent to the surface of the tunnel wall. The injection and application mechanism 3 can prevent the operator from interrupting the detection process and repeatedly applying the coupling agent, thus improving the detection efficiency.

Claims

1. A tunnel wall detection device, comprising: The device comprises a housing (1), an ultrasonic probe (4), and a probe clamping mechanism (2). The ultrasonic probe (4) is disposed on the front side of the housing (1), and the probe clamping mechanism (2) is installed inside the housing (1). The probe clamping mechanism (2) includes at least two clamping blocks (205) and a first electric push rod (201) for driving the clamping blocks (205) to move. The clamping blocks (205) are used to clamp the ultrasonic probe (4). Its features are, It also includes a material injection and application mechanism (3), which includes: The kit (303), sealing piston (305), second electric push rod (302), and roller (308) are provided. The kit (303) is fixed to the upper part of the outer shell (1). The sealing piston (305) is slidably disposed inside the kit (303). The second electric push rod (302) is mounted on the outer shell (1). The output end of the second electric push rod (302) is fixedly connected to the sealing piston (305). The roller (308) is rotatably disposed at the front end of the kit (303). The kit (303) is provided with an infusion hole (306) facing the roller (308).

2. The tunnel wall detection device according to claim 1, characterized in that, The probe clamping mechanism (2) further includes a slide rail (207) and a slider (206). The slide rail (207) is fixedly connected to the inner bottom wall of the outer shell (1), and the slider (206) is fixedly connected to the inner side of the clamping block (205). The slider (206) is slidably connected to the slide rail (207).

3. The tunnel wall detection device according to claim 1, characterized in that, The probe clamping mechanism (2) further includes a push plate (202) and a connecting plate (204). The push plate (202) is connected to the output end of the first electric push rod (201), and the connecting plate (204) is rotatably connected between the push plate (202) and the clamping block (205).

4. The tunnel wall detection device according to claim 2, characterized in that, The probe clamping mechanism (2) further includes a fixing block (208), which is fixed to the inner bottom wall of the outer shell (1), and the slide rail (207) is located on the front side of the fixing block (208).

5. The tunnel wall detection device according to claim 3, characterized in that, The probe clamping mechanism (2) also includes a guide rod (203), and the push plate (202) is slidably connected to the guide rod (203).

6. The tunnel wall detection device according to claim 1, characterized in that, The injection and application mechanism (3) also includes a mounting plate (301), on which the second electric push rod (302) and the reagent kit (303) are both mounted.

7. The tunnel wall detection device according to claim 1, characterized in that, The filling and coating mechanism (3) further includes a pair of end plates (307), which are fixed to the front end of the reagent kit (303), and the roller (308) is rotatably connected between the pair of end plates (307).

8. The tunnel wall detection device according to claim 1, characterized in that, The reagent kit (303) has an injection port (304).

9. The tunnel wall detection device according to claim 1, characterized in that, A handle (5) is fixed to the rear side of the outer casing (1).

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