Over-break and under-break detection device

Abstract

The utility model discloses an over-break and under-break detection device which comprises a rack, the bottom of the rack is fixedly connected with two concentric-square-shaped frames, the outer walls of the two concentric-square-shaped frames are both fixedly connected with a frame, the top of the rack is fixedly connected with a round frame, the inside of the round frame is fixedly connected with an electric push rod, and the electric push rod is fixedly connected with a motor. The top of the output end of the electric push rod is fixedly connected with a supporting plate. The three-dimensional laser scanner body is driven to move by arranging the machine frame, the concentric-square-shaped frame, the vehicle frame, the driving wheels, the storage battery, the round frame, the rib plate, the electric push rod, the supporting plate, the bearing plate, the rotating disc, the protection box and the L-shaped cover plate, long-distance multi-point detection in a tunnel is facilitated, back-and-forth carrying is avoided, and the working efficiency is improved. Meanwhile, the three-dimensional laser scanner body is lifted at different heights, scanning of a deep hole and a hidden space is met, the protection box and the L-shaped cover plate protect the three-dimensional laser scanner body, dust entering is reduced, and direct collision between foreign matter and the three-dimensional laser scanner body during carrying is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel detection equipment, in particular to an over-break and under-break detection device. Background Art

[0002] Tunnel engineering is an important infrastructure construction project, and its construction requires knowledge and technology from multiple professional fields. During tunnel excavation, cross-section over-excavation and under-excavation is a common problem. Over-excavation and under-excavation are based on the tunnel's designed excavation contour line, comparing the baseline and wheel line obtained from actual excavation. The part outside the baseline (collapsed area) is defined as over-excavation; the part outside the baseline (protruding area) is defined as under-excavation. The absence of large-scale over-excavation and under-excavation is the most ideal state for excavation using the drilling and blasting method.

[0003] In tunnel engineering, 3D laser scanners can be used to collect data on tunnel excavation sections and obtain the true shape and size information of tunnel sections. By processing the collected data, the over-excavation and under-excavation of the tunnel section can be obtained, providing construction units with timely and accurate data to facilitate adjustment of blasting plans and ensure construction quality.

[0004] In the prior art, the 3D laser scanner is supported by a tripod bracket during use. Since the 3D laser scanner itself has many functions and many internal electronic components, the overall device is heavy. After performing multi-point long-distance detection in the tunnel, it is not convenient to carry. Moreover, when used inside the tunnel, a large amount of dust is easily attached to the surface, which can easily block the laser lens on the 3D laser scanner. Therefore, we propose an over-excavation and under-excavation detection device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an over-excavation and under-excavation detection device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A device for detecting over-excavation and under-excavation comprises a frame, wherein two return frames are fixedly connected to the bottom of the frame, the outer walls of the two return frames are fixedly connected to a vehicle frame, the top of the frame is fixedly connected to a round frame, the inside of the round frame is fixedly connected to an electric push rod, the top of the output end of the electric push rod is fixedly connected to a support plate, the outer wall of the support plate is provided with a plurality of threaded holes, the inner walls of the plurality of threaded holes are threadedly connected to adjusting rods, the top of the adjusting rod is fixedly connected to a ball, the outer wall sliding sleeve of the ball is provided with a round sleeve, the outer wall fixed sleeve of the round sleeve is provided with a supporting plate, and the outer wall of the supporting plate is provided with a protective mechanism.

[0008] Preferably, the protective mechanism includes a protective box, the top of the supporting plate is provided with a groove, the inner wall of the groove is rotatably connected with a rotating disk, the top of the rotating disk is fixedly connected to the bottom of the protective box, the three-dimensional laser scanner body is placed inside the protective box, and the top of the protective box is hinged with an L-shaped cover plate, and the three-dimensional laser scanning lens is conveniently exposed by providing the L-shaped cover plate.

[0009] Preferably, the outer walls of the two frames are rotatably connected to two driving wheels, wherein the outer walls of the two driving wheels are installed with motors, and the same axle is fixedly connected between the two driving wheels. The four driving wheels are rotated synchronously by the two motors, and an encoder is installed on the outer wall of the motor output shaft.

[0010] Preferably, a storage battery is fixedly installed inside the rack, and the storage battery is used as a power source to power the equipment on the rack, and the rack is provided with a charging interface.

[0011] Preferably, a plurality of ribs are fixedly connected to the outer wall of the circular frame, and the bottoms of the plurality of ribs are fixedly connected to the top of the frame. The ribs are provided to increase the connection strength between the circular frame and the frame, thereby increasing stability.

[0012] Preferably, the bottom of the protection box is in contact with the top of the supporting plate, and there is a certain friction force between the protection box and the supporting plate.

[0013] Preferably, a buckle groove is provided on the outer wall of the L-shaped cover plate, and a plurality of balls are rotatably connected to the bottom of the rotating disk, so that the rotating disk can be easily rotated in the groove by providing the balls.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] This solution drives the 3D laser scanner body to move by setting up a frame, a return frame, a vehicle frame, a driving wheel, a battery, a round frame, a rib plate, an electric push rod, a support plate, a bearing plate, a rotating disk, a protective box and an L-shaped cover, so as to facilitate long-distance multi-point detection in the tunnel and avoid carrying it back and forth. At the same time, the 3D laser scanner body is lifted to different heights to meet the scanning of deep holes and hidden spaces. The protective box and the L-shaped cover protect the 3D laser scanner body to reduce dust entry and avoid direct collision with foreign objects when carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an over-excavation and under-excavation detection device proposed by the utility model;

[0018] Figure 2 This is a schematic cross-sectional structure diagram of an over-break and under-break detection device proposed by the utility model;

[0019] Figure 3 The utility model provides an over-excavation and under-excavation detection device Figure 2 A schematic diagram of the enlarged structure of part A in the figure.

[0020] In the figure: 1. frame; 2. return frame; 3. frame; 4. driving wheel; 5. battery; 6. round frame; 7. rib plate; 8. electric push rod; 9. support plate; 10. adjustment rod; 11. round ball; 12. round sleeve; 13. supporting plate; 14. rotating disk; 15. protective box; 16. 3D laser scanner body; 17. L-shaped cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Depend on Figure 1-Figure 3 As shown, it relates to an over-excavation and under-excavation detection device, including a frame 1, two return frames 2 are fixedly connected to the bottom of the frame 1, the outer walls of the two return frames 2 are fixedly connected to the frame 3, the outer walls of the two frames 3 are rotatably connected to two driving wheels 4, wherein the outer walls of the two driving wheels 4 are installed with motors, the driving wheels 4 are rotated by the motor, driving the frame 1 to move, and a battery 5 is fixedly installed inside the frame 1.

[0023] A circular frame 6 is fixedly connected to the top of the frame 1, and a plurality of ribs 7 are fixedly connected to the outer wall of the circular frame 6. The bottoms of the plurality of ribs 7 are fixedly connected to the top of the frame 1. An electric push rod 8 is fixedly connected to the inside of the circular frame 6. The circular frame 6 protects the electric push rod 8. A support plate 9 is fixedly connected to the top of the output end of the electric push rod 8. The operation of the electric push rod 8 drives the support plate 9 to move up and down.

[0024] The outer wall of the support plate 9 is provided with a plurality of threaded holes, and the inner walls of the plurality of threaded holes are threadedly connected with an adjusting rod 10. There is a certain gap between the threaded holes and the adjusting rod 10 to meet the movement of the supporting plate 13 during fine-tuning. A round ball 11 is fixedly connected to the top of the adjusting rod 10, and a round sleeve 12 is slidingly sleeved on the outer wall of the round ball 11. There is a certain gap between the round sleeve 12 and the round ball 11 to meet the rotation of the round ball 11 and the movement of the supporting plate 13. The outer wall of the round sleeve 12 is fixedly sleeved with a supporting plate 13.

[0025] The outer wall of the supporting plate 13 is provided with a protection mechanism, which includes a protection box 15. The bottom of the protection box 15 is in contact with the top of the supporting plate 13. A groove is opened on the top of the supporting plate 13. The inner wall of the groove is rotatably connected with a rotating disk 14. The bottom of the rotating disk 14 is rotatably connected with a plurality of ball bearings. The protection box 15 is rotated by the rotating disk 14 and the groove to align the laser lens on the three-dimensional laser scanner body 16 with the interior of the tunnel.

[0026] The top of the rotating disk 14 is fixedly connected to the bottom of the protective box 15. A three-dimensional laser scanner body 16 is placed inside the protective box 15. An L-shaped cover 17 is hinged on the top of the protective box 15. The L-shaped cover 17 covers the protective box 15 to protect the three-dimensional laser scanner body 16. The outer wall of the L-shaped cover 17 is provided with a buckle groove.

[0027] Working principle: When performing over-excavation and under-excavation detection in the tunnel, the four driving wheels 4 are driven by two motors. The four driving wheels 4 rotate to drive the frame 1 and the whole to move, thereby driving the three-dimensional laser scanner body 16 to move, which is convenient for multi-point long-distance detection in the tunnel and avoids carrying back and forth. At the same time, during the detection, the driving wheels 4 fix the frame 1, and the electric push rod 8 drives the support plate 9 to move upward. The upward movement of the support plate 9 drives the supporting plate 13 and the three-dimensional laser scanner body 16 to be lifted, which is convenient for scanning deep holes and hidden spaces during use. At the same time, multiple adjustment rods 10 are rotated to make the ball 11 and the round sleeve 12 rise and fall, driving the supporting plate 13 to be fine-tuned, so that the supporting plate 13 can be kept in a horizontal position as much as possible, and the L-shaped cover 17 is opened through the buckle groove to expose the three-dimensional laser scanner body 16 for use. At the same time, the protective box 15 is rotated by the rotating disk 14 and the groove to make the laser lens on the three-dimensional laser scanner body 16 face the inside of the tunnel.

[0028] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An overbreak and underbreak detection device, comprising a frame (1), characterized in that: The bottom of the frame (1) is fixedly connected to two return frames (2), the outer walls of the two return frames (2) are fixedly connected to a vehicle frame (3), the top of the frame (1) is fixedly connected to a round frame (6), the inside of the round frame (6) is fixedly connected to an electric push rod (8), the top of the output end of the electric push rod (8) is fixedly connected to a support plate (9), the outer wall of the support plate (9) is provided with a plurality of threaded holes, the inner walls of the plurality of threaded holes are threadedly connected to an adjusting rod (10), the top of the adjusting rod (10) is fixedly connected to a round ball (11), the outer wall of the round ball (11) is slidably sleeved with a round sleeve (12), the outer wall of the round sleeve (12) is fixedly sleeved with a supporting plate (13), and the outer wall of the supporting plate (13) is provided with a protective mechanism.

2. The over-break and under-break detection device according to claim 1, characterized in that: The protection mechanism comprises a protection box (15), the top of the support plate (13) is provided with a groove, the inner wall of the groove is rotatably connected to a rotating disk (14), the top of the rotating disk (14) is fixedly connected to the bottom of the protection box (15), a three-dimensional laser scanner body (16) is placed inside the protection box (15), and the top of the protection box (15) is hinged with an L-shaped cover plate (17).

3. The over-break and under-break detection device according to claim 1, characterized in that: The outer walls of the two vehicle frames (3) are rotatably connected to two driving wheels (4), wherein the outer walls of the two driving wheels (4) are both equipped with motors.

4. The over-break and under-break detection device according to claim 1, characterized in that: A storage battery (5) is fixedly installed inside the frame (1).

5. The over-break and under-break detection device according to claim 1, characterized in that: The outer wall of the circular frame (6) is fixedly connected to a plurality of ribs (7), and the bottoms of the plurality of ribs (7) are fixedly connected to the top of the frame (1).

6. The over-break and under-break detection device according to claim 2, characterized in that: The bottom of the protection box (15) contacts the top of the supporting plate (13).

7. The over-break and under-break detection device according to claim 2, characterized in that: The outer wall of the L-shaped cover plate (17) is provided with a buckle groove, and the bottom of the rotating disk (14) is rotatably connected to a plurality of balls.

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