Tunnel crack detection device

Abstract

The utility model relates to the technical field of detection equipment, in particular to a tunnel crack detection device. Comprising a detection machine plane, a detection machine body, a supporting mechanism and a dustproof mechanism, the detection machine plane is arranged on the front face of the detection machine body, the supporting mechanism is used for preventing the detection machine body from shaking, the dustproof mechanism is used for preventing dust from linearly infecting the exterior of the detection machine plane, and the supporting mechanism can stably support the detection machine body. The motor assembly drives the driving gear to rotate, so that the guide block slides along the guide shaft, the upper and lower jacking components (the upper jacking arch plate and the lower jacking support plate) synchronously and reversely move, the detection machine body is fixed in the vertical direction, and in the complex tunnel environment, the detection machine body can be prevented from shaking due to external force or vibration of the detection machine body; the stable support ensures the position precision of the plane of the detector in the detection process, so that the detection data acquisition is more accurate, a reliable basis is provided for subsequent tunnel crack analysis, and the credibility and effectiveness of a detection result are improved.

Description

Technical Field

[0001] This utility model relates to the field of detection equipment technology, and in particular to a tunnel crack detection device. Background Technology

[0002] Tunnel crack detection equipment is an important tool for detecting surface cracks in tunnel structures, playing a crucial role in tunnel construction and maintenance. Due to the complex environment of tunnels, which are affected by geological conditions, vehicle vibrations, temperature changes, and other factors, tunnel structures are prone to cracking. Common problems in actual inspection work include poor equipment stability, susceptibility to external interference and shaking during testing, leading to inaccurate data; and the presence of dust and impurities inside tunnels, which can contaminate critical components of the equipment, affecting detection accuracy and equipment lifespan.

[0003] CN219328394U discloses a tunnel crack detection device. By incorporating a first telescopic shell, a second telescopic shell, and a crack indicator rod, when a construction joint crack appears, the first and second telescopic shells move relative to each other, creating a distance between the indicator rod and the right end face of the first telescopic shell. This allows for targeted detection of construction joint cracks. This technical solution addresses the problem of effectively detecting construction joint cracks to a certain extent, achieving the detection of specific cracks through a relatively simple structure, thus improving the targeting of the detection.

[0004] However, the technology in the prior art document does not adequately consider the stability of the testing equipment in a tunnel environment. In actual tunnel testing scenarios, there are vibrations from passing vehicles and disturbances from ventilation airflow. This technology lacks effective support and fixation measures, making the testing equipment prone to shaking and making it difficult to ensure the accuracy of the equipment's position during the testing process, thus affecting the accuracy of the testing data.

[0005] Therefore, how to provide a tunnel crack detection device has become a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] The technical problem to be solved by this utility model is how to provide a tunnel crack detection device.

[0007] To achieve the above objectives, this utility model provides a tunnel crack detection device, comprising: a detection machine plane, a detection machine body, a support mechanism and a dust prevention mechanism, wherein the front of the detection machine body is provided with a detection machine plane;

[0008] The support mechanism is used to prevent the testing machine body from shaking.

[0009] The dust prevention mechanism is used to prevent dust from directly contaminating the exterior of the testing machine's surface.

[0010] Preferably, the support mechanism includes an upper arch plate, a lower support plate, a drive gear, a guide block, a motor assembly, an adapter frame, a spring, a first support rod, a guide shaft, a back frame, and a rack. Back frames are provided on both sides of the back of the testing machine body. A guide shaft is vertically arranged inside the back frame. A guide block is sleeved on the outside of the guide shaft. A rack is provided on one side of the guide block. A spring is provided at the bottom of the guide block. A motor assembly is located in the middle of the back of the testing machine body. An adapter frame is provided at the bottom of the motor assembly. A drive gear is provided at one end of the motor assembly near the testing machine body. One end of the guide block on one side of the drive gear is connected to the first support rod. A lower support plate is provided at the bottom of the first support rod. The other end of the guide block on the other side of the drive gear is connected to a second support rod. An upper arch plate is located at the top of the second support rod.

[0011] The back of the testing machine body has back frames on both sides. Inside the back frames, guide shafts are vertically installed. Guide blocks are sleeved on the outside of the guide shafts. The sliding channel inside the guide blocks is slidably connected to the guide shafts, allowing the guide blocks to slide up and down along the guide shafts. A rack is fixedly connected to one side of the guide blocks, and a spring is provided at the bottom. The spring provides a certain amount of buffering and restoring force.

[0012] The motor assembly is installed in the middle of the back of the testing machine body, and the bottom end is fixed by the adapter bracket. The drive gear of the motor assembly near the end of the testing machine body meshes with the rack on one side of the guide block. When the motor assembly is started, the drive gear rotates, driving the rack meshed with it to move, thereby causing the guide block to slide along the guide shaft.

[0013] The combined structure of the lower top support plate and the first support rod is axially symmetric with the combined structure of the upper top arch plate and the second support rod.

[0014] Preferably, the combined structure of the lower top support plate and the first support rod and the combined structure of the upper top arch plate and the second support rod are axisymmetric structures.

[0015] When one guide block moves the first support rod and the lower top support plate, the other guide block moves the second support rod and the upper top arch plate in the opposite direction. In this way, the lower top support plate presses downward against the bottom of the tunnel, and the upper top arch plate presses upward against the top of the tunnel, forming a stable support for the inspection machine body from both directions, effectively preventing the inspection machine body from shaking during the inspection process and ensuring inspection accuracy.

[0016] Preferably, the guide block and the rack are fixedly connected.

[0017] Preferably, a sliding channel is provided on the inner side of the guide block, and the sliding channel of the guide block and the outer side of the guide shaft form a sliding connection.

[0018] Preferably, the dust prevention mechanism includes a rotating gear and a dust-shielding plate. A rotating rod is provided extending outward from the upper end of the middle of the back of the testing machine body. A rotating gear is provided at the front end of the rotating rod. A crossbar is provided at the upper end of the front of the rotating gear. A dust-shielding plate is provided at the front end of the crossbar.

[0019] A rotating rod extends outward from the upper part of the middle of the back of the testing machine body. A rotating gear is installed at the front end of the rotating rod. A crossbar is connected to the upper front of the rotating gear. A dust-shielding plate is installed at the front end of the crossbar. The width of the dust-shielding plate is equal to the width of the testing machine body. The outer part has an arc structure, which can better cover the area above the plane of the testing machine.

[0020] The auxiliary rotating gear and the driving gear are meshed together. When the motor assembly in the support mechanism is started and the driving gear rotates, it drives the auxiliary rotating gear to rotate through the meshing relationship. During the rotation of the auxiliary rotating gear, it drives the crossbar and dust-shielding plate connected to it to rotate around the axis of the rotating bar. When the testing machine body is performing testing work, the dust-shielding plate will adjust the angle accordingly according to the rotation of the driving gear, and always maintain a suitable position above the plane of the testing machine, effectively blocking dust from falling straight down to the outside of the plane of the testing machine, thus playing a dust prevention role.

[0021] Preferably, the width of the dust shield is equal to the width of the testing machine body, and the exterior of the dust shield has an arc-shaped structure.

[0022] Preferably, the auxiliary gear and the driving gear are meshed together.

[0023] The beneficial effects of this utility model are:

[0024] 1. In use, the support mechanism of this utility model can stably support the main body of the testing machine. The motor assembly drives the drive gear to rotate, causing the guide block to slide along the guide shaft. The upper and lower clamping components (upper top arch plate and lower top support plate) move synchronously in opposite directions, fixing the main body of the testing machine from the top and bottom. In the complex environment of the tunnel, it can prevent the main body of the testing machine from shaking due to external forces or its own vibration. This stable support ensures the positional accuracy of the plane of the testing machine during the testing process, making the testing data collection more accurate, providing a reliable basis for subsequent tunnel crack analysis, and improving the credibility and effectiveness of the testing results.

[0025] 2. In use, the dust-proof mechanism of this utility model can effectively prevent dust from contaminating the surface of the testing machine. When the drive gear rotates, it drives the meshing auxiliary gear, causing the dust-proof plate to rotate around the axis of the rotating rod to adjust its position. The width of the dust-proof plate is adapted to the body of the testing machine and has an arc structure, which can cover the area above the surface of the testing machine. In tunnel construction or daily environment, dust is easy to fall. The dust-proof plate blocks the dust from falling straight down to the surface of the testing machine, keeping it clean, reducing dust pollution to the optical components of the testing equipment, reducing the frequency of equipment maintenance, extending the service life of the equipment, and ensuring the long-term stable operation of the testing work. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a front view structural diagram of the entire embodiment of this utility model;

[0028] Figure 2 This is a schematic diagram of the overall rear structure of a specific embodiment of this utility model;

[0029] Figure 3 This is the entirety of the specific embodiments of this utility model. Figure 2 A magnified structural diagram at point a;

[0030] Figure 4 This is the entirety of the specific embodiments of this utility model. Figure 2 A magnified structural diagram at point b.

[0031] Part Name

[0032] 1. Testing machine plane; 2. Top arch plate; 3. Dust shield; 4. Bottom support plate; 5. Testing machine body; 6. Drive gear; 7. Guide block; 8. Motor assembly; 9. Adapter frame; 10. Spring; 11. First support rod; 12. Guide shaft; 13. Back frame; 14. Second support rod; 15. Attached rotating gear; 16. Rack. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings. Preferably, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] Please see Figures 1-4 The present invention provides a tunnel crack detection device, comprising: a detection machine plane 1, a detection machine body 5, a support mechanism and a dust prevention mechanism, wherein the detection machine plane 1 is provided on the front side of the detection machine body 5;

[0036] The support mechanism is used to prevent the main body 5 of the testing machine from shaking;

[0037] The dust prevention mechanism is used to prevent dust from directly contaminating the exterior of the plane 1 of the testing machine;

[0038] The support mechanism includes an upper arch plate 2, a lower support plate 4, a drive gear 6, a guide block 7, a motor assembly 8, an adapter frame 9, a spring 10, a first support rod 11, a guide shaft 12, a back frame 13, and a rack 16. Back frames 13 are provided on both sides of the back of the testing machine body 5. A guide shaft 12 is vertically arranged inside the back frame 13. A guide block 7 is sleeved on the outside of the guide shaft 12. A rack 16 is provided on one side of the guide block 7. A spring 10 is provided at the bottom of the guide block 7. A motor assembly 8 is located in the middle of the back of the testing machine body 5. An adapter frame 9 is provided at the bottom of the motor assembly 8. A drive gear 6 is provided at one end of the motor assembly 8 near the testing machine body 5. One end of the guide block 7 on one side of the drive gear 6 is connected to the first support rod 11. A lower support plate 4 is provided at the bottom of the first support rod 11. The other end of the guide block 7 on the other side of the drive gear 6 is connected to a second support rod 14. The upper arch plate 2 is located at the top of the second support rod 14.

[0039] In this embodiment:

[0040] First, the construction personnel transported the tunnel crack detection device to the detection site. They then checked whether each component of the device was intact, including the detection machine plane 1, the detection machine body 5, the upper arch plate 2, the lower support plate 4, the drive gear 6, the guide block 7, the motor assembly 8, the adapter frame 9, the spring 10, the first support rod 11, the guide shaft 12, the back frame 13, the rack 16, and the auxiliary rotating gear 15 and the dust-proof mechanism 3, etc. After confirming that there was no damage, the detection device was moved to a suitable location in the area of ​​the tunnel to be detected, ready for installation and debugging.

[0041] Construction personnel connect the power supply to the detection device and start the motor assembly 8. The motor assembly 8 begins to work, and the drive gear 6 at its front end begins to rotate. The drive gear 6 meshes with the rack 16 on one side of the guide block 7, driving the rack 16 to move, which in turn causes the guide block 7 to slide along the guide shaft 12. Since the bottom of the guide block 7 is equipped with a spring 10, the spring 10 plays a certain buffering role during the sliding process. As the guide block 7 slides, the first support rod 11 on one side drives the lower top support plate 4 to move downward, and the second support rod 14 on the other side drives the upper top arch plate 2 to move upward. The lower top support plate 4 gradually presses against the bottom of the tunnel, and the upper top arch plate 2 gradually presses against the top of the tunnel. Through this bidirectional pressing method, the detection machine body 5 is firmly fixed in the tunnel, avoiding shaking caused by factors such as vibration of passing vehicles and ventilation airflow in the tunnel during the detection process.

[0042] While the support mechanism is working, the rotation of the drive gear 6 drives the auxiliary gear 15 to rotate through the meshing relationship. When the auxiliary gear 15 rotates, it drives the connected crossbar and dust-shielding plate 3 to rotate around the axis of the rotating bar. The width of the dust-shielding plate 3 is consistent with the body 5 of the inspection machine and has an arc structure. After rotation, it is gradually adjusted to a suitable angle and covers the top of the plane 1 of the inspection machine, preventing the dust flying in the tunnel from falling directly onto the plane 1 of the inspection machine.

[0043] After the main body 5 of the inspection machine is stably fixed and the plane 1 of the inspection machine is protected from dust, the operator starts the inspection program through the operation interface on the plane 1 of the inspection machine. The detection element inside the main body 5 starts to work, scanning and inspecting the inner wall of the tunnel. The collected images and data of the tunnel surface are transmitted to the internal processing system for analysis to determine whether there are cracks in the tunnel and the location, width, length and other parameters of the cracks. Throughout the inspection process, the support mechanism keeps the main body 5 of the inspection machine stable, and the dust prevention mechanism keeps preventing dust contamination, ensuring that the inspection work is carried out smoothly and accurately, and providing reliable data support for the safety assessment of subway tunnels.

[0044] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A tunnel crack detection device, characterized in that, Include: The detection machine plane (1), the detection machine body (5), the support mechanism and the dustproof mechanism, the front of the detection machine body (5) is provided with detection machine plane (1); The support mechanism is used for preventing the detection machine body (5) from shaking; The dustproof mechanism is used for preventing dust from directly invading the outside of the detection machine plane (1).

2. The tunnel crack detection apparatus of claim 1, wherein The support mechanism includes an upper arch plate (2), a lower top support plate (4), a driving gear (6), a guide block (7), a motor assembly (8), an adapter frame (9), a spring (10), a first support rod (11), a guide shaft (12), a back frame (13), a rack (16), the back of the detection machine body (5) is provided with back frame (13) on both sides, the inside of the back frame (13) is vertically provided with guide shaft (12), the outside of the guide shaft (12) is provided with guide block (7), one side of the guide block (7) is provided with rack (16), the bottom of the guide block (7) is provided with spring (10), the middle of the back of the detection machine body (5) is provided with motor assembly (8), the bottom end of the motor assembly (8) is provided with adapter frame (9), the end of the motor assembly (8) close to the detection machine body (5) is provided with driving gear (6), one end of the guide block (7) on one side of the driving gear (6) is connected with first support rod (11), the bottom of the first support rod (11) is provided with lower top support plate (4), the other end of the guide block (7) on the other side of the driving gear (6) is connected with second support rod (14), the top of the second support rod (14) is provided with upper arch plate (2).

3. A tunnel crack detection device as claimed in claim 2, characterized in that The combination structure of the lower top support plate (4) and the first support rod (11) and the combination structure of the upper arch plate (2) and the second support rod (14) are axisymmetric structures.

4. The tunnel crack detection apparatus of claim 2, wherein The guide block (7) and the rack (16) are fixedly connected.

5. The tunnel crack detection apparatus of claim 2, wherein The inside of the guide block (7) is provided with a sliding channel, and the sliding channel of the guide block (7) and the outside of the guide shaft (12) form a sliding connection.

6. The tunnel crack detection apparatus of claim 1, wherein The dustproof mechanism includes an additional gear (15) and a dust cover (3), the upper end of the back of the detection machine body (5) is outwardly extended to be provided with a rotating rod, the front end of the rotating rod is provided with an additional gear (15), the upper end of the front surface of the additional gear (15) is provided with a horizontal rod, and the front end of the horizontal rod is provided with a dust cover (3).

7. A tunnel crack detection device as claimed in claim 6, characterized in that The width of the dust cover (3) is equal to the width of the detection machine body (5), and the outside of the dust cover (3) is an arc structure.

8. The tunnel crack detection apparatus of claim 6, wherein The additional gear (15) and the driving gear (6) are meshingly connected.

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